A 773,743
WDRAULIC
TABLES
Engin
QA
55
M422
1944
UNITY
MIC

1911• THE UNIVERS;
CIENTIA
VERI
ART
OF MIC
OF MICH
WAR DEPARTMENT
CORPS OF ENGINEERS
HYDRAULIC TABLES
(SECOND EDITION)

PREPARED UNDER DIRECTION OF THE
CHIEF OF ENGINEERS
U. S. ARMY
BY THE
MATHEMATICAL TABLES PROJECT
FEDERAL WORKS AGENCY
WORK PROJECTS ADMINISTRATION
FOR THE CITY OF NEW YORK
O. P. 265-2-97-11
NATIONAL BUREAU OF STANDARDS
SPONSORING AGENCY
UNITED STATES
GOVERNMENT PRINTING OFFICE
WASHINGTON: 1944
For sale by the Superintendent of Documents, U. S. Government
Printing Office, Washington, D. C. - Price $1.00
CH
UNITED STATES
APR 1 1
WAENICA
PREFACE
This book contains 46 hydraulic tables especially applicable
to the solution of problems of open channel flow.
The first 3 tables are extensions of Tables 106, 121, and 133
of HANDBOOK OF HYDRAULICS, by Horace Williams King,
McGraw-Hill Book Co., Inc. (1939).
The next 12 tables are extensions of Tables 14 to 18, inclusive,
and Table 47 of HYDRAULIC AND EXCAVATION TABLES, U. S.
Department of the Interior, Bureau of Reclamation (1940).
The last 31 tables are original tables.
It is not the intention of this book to put forward a complete
set of hydraulic tables but rather to supplement previously
published tables. Nor is it the intention to discuss or explain
the use of the formulae involved. For an explanation of the
formulae, the user is referred to the above two texts and other
standard hydraulic textbooks.
These tables have been prepared and published primarily
for the use of the various offices of the Corps of Engineers,
U. S. Army, in connection with the design of flood protection
works. The range of many existing tables had been found
inadequate for the large rivers, great depths, and steep slopes
encountered in flood control work. It was also found desirable
to compute several new tables. The new tables will be especially
useful in solving the Manning formula in its various forms.
In connection with the new Manning Formula Tables occupy-
ing the last 250 pages of the book, attention is called to the fact
that some of the values in the tables may be outside the limits of
reliability of the formula. The ranges of the parameters set up
for the computation of the tables were determined solely on the
basis of what was thought to be useful in flood control work,
without considering the effect of extreme combinations on the
validity of the formula. The user of the book should therefore
determine for himself whether a given combination of r, s, and n
gives a reliable value of velocity.
III
IV
PREFACE
The Manning formula is a turbulant flow formula applicable
only to flow in hydraulically rough conduits. When the velocity
decreases sufficiently, a conduit tends to behave as if it were
hydraulically smooth and viscosity affects the flow making the
formula unreliable. As a rough guide in determining this lower
limit of reliability, the National Bureau of Standards proposes
the following expression, based on Nikuradse's elaborate tests on
artificially roughened (sand-coated) pipes:
4.90X10Xnxns
Kinematic viscosity
[in ft.-sec. units] > 70
The above parameter is dimensionless and may be referred to as
the roughness Reynolds number. If the liquid is assumed to be
water, and the possible temperature variation 0° to 40° C., then
the parameter will vary from a minimum of 0.8 to a maximum of
4.4×10¹⁰ within the limits of the tables. When the parameter
becomes less than 70, the Manning formula first gives velocities
which are too low, and finally, velocities which are too high.
The value of the parameter at which the change from negative to
positive error occurs is about 3.3. At this point, the Manning
formula is again reliable. The maximum negative error is about
9 percent and occurs at a value of the parameter of about 11.
The maximum positive error is about 17 percent and occurs at
the lowest value of the parameter in the tables, 0.8.
If the figure
in the upper left-hand corner of the table on page 316 is omitted,
the maximum positive error will then be only about 13 percent.
Although the above figures apply specifically to sand-coated
pipes, it is generally believed that very rough commercial sur-
faces will follow similar laws. Different laws apply to hydrauli-
cally wavy surfaces, however, such as commercially smooth pipes
and planed-wood surfaces. In such cases the error is always
positive, and the value of the above parameter at which the
error starts is probably less than 70.
On the high velocity side, the Manning formula is probably
reliable until the flow begins to be affected by air entrainment or
until the flow changes to slug-type flow. The Bureau of Stand-
ards also warns that the Manning formula may not be reliable
for such high n values as are included in the tables. An n value
of 0.175 for instance, in a small channel with a hydraulic radius of
0.2 feet, would represent a roughness greater than could be pro-
duced on the periphery alone. Obstructions in the channel
PREFACE
V
proper would be necessary to produce such a high resistance and
the applicability of the Manning formula to this type of flow is
questionable. Despite all these limitations, however, it was con-
sidered advisable to include these extreme values in the tables
because of the possibility that they may prove useful for the
approximate solutions of problems for which no more exact
method of solution exists and because an approximate answer is
frequently all that is required.
The computation and the arrangement of the tables are the
work of the Mathematical Tables Project (O. P. 265–2-97-11)`'
of the Federal Works Agency, Work Projects Administration
for the City of New York, and were under the direct super-
vision of Dr. Arnold N. Lowan, Director of the Project. The
Mathematical Tables Project was organized in 1938 under the
Works Progress Administration, with the National Bureau of
Standards, Dr. Lyman J. Briggs, Director, acting as sponsoring
agency. Grateful acknowledgement is hereby made to the
personnel of the Mathematical Tables Project who aided in the
preparation of the extensive work.
Professor H. W. King and the McGraw-Hill Book Co., Inc.,
have kindly given their permission for the publication of Tables
106, 121, and 133 of HANDBOOK OF HYDRAULICS as parts of these
tables. The Bureau of Reclamation has also kindly agreed to
the publication of Tables 14 to 18, inclusive, and Table 47 of
HYDRAULIC AND EXCAVATION TABLES as parts of these tables.
A few facts, bearing on the computation of the tables, will be
stated here. Most formulae, from which these tables were com-
puted, involved the computation of products and powers. For
such operations, use was made of the extensive table of loga-
rithms prepared by the Mathematical Tables Project itself.
Whenever square roots were to be extracted, Barlow's tables
were resorted to.
Table 2 involved finding the positive roots of the cubic
y=x²-x³ corresponding to a given set of positive values of
y=qı²/(2gH¸³). When this quantity is zero, the positive roots
are 0 and 1, and for all other given values of y, the required
values of x lie between 0 and 1. The cubic attains a maximum
at x=2/3, corresponding to an approximate value of 0.14815
for q₁2/(2gH.,³). It follows, therefore, that no real value of x
exists when y exceeds 0.14815.
VI
PREFACE
In Table 15, the value of c in the Chezy formula v=c√rs is
given by the Kutter formula
C=
1.811/n+41.6+.00281/s
1+(41.6+.00281/s)n/√r
where r is the hydraulic radius, s is the slope, and n is the
coefficient of roughness. For r=(1.811)²=3.28, the above ex-
pression for c reduces to 1.811/n and is thus no longer dependent
upon the value of the slope. This fact explains the footnote
on page 261.
Table 21 lists the values of c, for use in the formula D₂-Cng³/5,
giving the normal depth in channels of infinite width, where q is
the discharge in cubic feet per second per foot of width. "Nor-
mal depth" is defined as the depth at which uniform flow will
occur when a given quantity of water flows through a long
channel of given dimensions, roughness n, and slope s. The
values for c, were obtained from the expression
Сп
-=[1.4
N
1.486s
13/5
All computations were carried to at least two places beyond
the number of places appearing in this volume. The final entries
were checked by differencing, or, where differencing was imprac-
ticable, by recomputation.
Ordinary linear interpolation will give fairly accurate results
for all the tables in this volume.
E. REYBOLD,
Major General,
Chief of Engineers.
CONTENTS
SECTION I. Extension of Tables 106, 121, and 133 in Hand-
book of Hydraulics by Horace Williams
King, McGraw-Hill Book Company, Inc:
TABLE 1. Values of nu in Manning's Formula.
TABLE 2. Depths of equal energy for rectangular
cross-sections__
TABLE 3. Depth after hydraulic jump for rectan-
gular cross-sections___.
SECTION II. Extension of Tables 14-18 and 47 in Hy-
draulic and Excavation Tables, U. S.
Department of the Interior, Bureau of
Reclamation:
TABLE 4. Area and hydraulic radius of rectangular
channels__
TABLE 5. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes ¼ to 1_
TABLE 6. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes ½ to 1
TABLE 7. Area, top width, and hydraulic radius
of trapezoidal channels, side slopes ¾
to 1...
TABLE 8. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 1 to 1
TABLE 9. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 12 to 1-
TABLE 10. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 2 to 1.
TABLE 11. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 2½ to 1.
TABLE 12. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 3 to 1-
TABLE 13. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 3½ to 1-
TABLE 14. Area, top width, and hydraulic radius of
trapezoidal channels, side slopes 4 to 1_
TABLE 15. Kutter's values of c for use in the Chezy
formula v=c√√rs.
Page
2
14
#
16
58
61
81
101
121
141
161
181
201
221
241
261
VII
VIII
CONTENTS
Page
270
278
286
294
302
SECTION III. Miscellaneous New Tables:
A. Fractional Powers of Numbers:
TABLE 16. Five-halves powers of numbers_
TABLE 17. Five-thirds powers of numbers_
TABLE 18. Four-thirds powers of numbers-
TABLE 19. Two-thirds powers of numbers_.
TABLE 20. Three-fifths powers of numbers.
B. Normal Depth in Channels of Infinite Width.
1
1
1
I
1
TABLE 21. Values of cn for use in the formula
Dn=cn 9 3/5
C. Manning Formula Tables Giving the Velocity of
Water for Various Coefficients of Roughness, n.
1
312
1
I
316
326
336
346
J
1
1
1
TABLE 22__
n=.010_
TABLE 23-
n=.011_
TABLE 24
n=.012
TABLE 25.
n=.013
TABLE 26
n=.014_
TABLE 27.
n=.015_
TABLE 28.
.n=.0175_
TABLE 29.
.n=.020_.
TABLE 30.
TABLE 31
n=.0225_
n=.025
TABLE 32
n=.0275_
TABLE 33.
n=.030_
TABLE 34
-
n=.035_
TABLE 35.
n=.040_
TABLE 36
n=.045_
TABLE 37.
n=.050_
TABLE 38.
n=.055_
TABLE 39.
.n=.060_
TABLE 40_
n=.065_
TABLE 41
n=.070_
TABLE 42
n=.075.
TABLE 43
n=.100.
TABLE 44.
n=.125
TABLE 45
n=.150.
356
366
376
386
396
406
416
426
436
446
456
466
476
486
496
506
516
526
536
I
J
1
I
I
!
546
TABLE 46
556
n=.175_
1
1
SECTION I
EXTENSION OF TABLES 106, 121, AND 133 IN HAND-
BOOK OF HYDRAULICS BY HORACE W. KING,
MCGRAW-HILL BOOK CO., INC., 1939
2
HYDRAULIC TABLES
Table 1.-Values of ny corresponding to different values of r and s
in Manning's Formula, (1.486/n)r2/3g1/2
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r-hydraulic radius in feet
s= slope
0.1
0.2
0.3
0.4
0.5 5 0.6
0.7 0.8
0.9
1.0
.00005 0023 .0036
10.0032 .0051
15 .0039.0062
.0047
.0067.0081
0057
.0066
.0094
.0075 .0083
.0106 .0117
.0091
.0098 .0105
.0128
.0139 .0149
.0082 .0099
.0115
.0130 .0144
.0157
20 .0045 .0072
.0094
.0170 .0182
.0114
.0132
.0150 .0166
.0181
.0196
.0210
25
.0051 .0080
.0105
.0128
.0148
.0167
.0185 .0203 .0219
.0235
00030
.0056
.0088
.0115 .0140
.0162
.0183
.0203 .0222 .0240
.0257
35
.0060.0095
.0125 .0151 .0175
.0198
.0219 .0240
.0259
.0278
40
.0064.0102
45
.0068 .0108
50.0072 .0114
.0133
.0141 .0171 .0199
.0149 .0180 .0209
.0161 .0187
.0211
.0234 .0256
.0277
.0297
.0224
.0249.0272
.0294
.0316
.0236
.0262 .0286
.0310
.0332
00055 .0075.0119
.0156
.0189 .0220
.0248
.0275 .0300
.0325
.0349
60 .0078 .0125 .0163
65.0082 | .0130
.0198
.0229
.0259
.0287 .0314 0339
.0364
.0170 .0206
.0239
.0270
.0299 .0327
.0353
.0379
70.0085 .0135
75 .0088 .0139
.0176
.0182 .0221
.0213
.0248
.0280
.0310 .0339
.0367
.0393
.0256
.0290 .0321 .0351
.0379
.0407
00080
.0091 .0144
85
.0093.0148
.0188 .0228 .0265
.0194.0235
.0299 .0331 .0362 .0392 .0420
90
.0096 .0153 .0200 .0242
95.0099 .0157.0205 .0249
100 .0101 .0161 .0211 .0255
.0273 .0308 .0342
.0281 .0317
.0289 .0326
.0296 .0334
.0374
.0404
.0433
.0351 .0384
.0416
.0446
.0361
.0370
.0395 .0427
.0458
.0405 .0439
.0470
.0011
.0106 .0169 .0221
12
.0111 .0176
13
.0115 .0183
.0240 .0291
.0268 .0311
.0231 .0280 .0324
.0338
0422
•
14
.0119.0190
.0249 .0302
.0350
.0351 .0389
.0366 .0406 .0444 .0480
.0381
.0395 .0438
.0425
.0459
.0493
.0515
.0462 .0500
.0536
.0479 .0518
.0556
15
.0124.0197
.0258 .0312
.0363
.0410 .0454
.0496.0537
.0576
•
0016 .0128 .0203
17.0132 .0210
18 .0136.0216
19
20
.0140.0222
.0143.0227
.0266 .0323
.0375 .0423
.0275 .0333 .0387 .0436
.0283 .0342 .0397 .0449
.0290 .0352 .0409 .0461 .0511 .0558
.0298 .0361 .0419 .0473 .0524 .0573
.0469
.0512 .0554
.0594
.0483
.0528 .0571
.0613
.0497 .0543
.0587
.0630
.0604
.0648
.0620
.0665
0025
•
0160 .0254
30
.0175 .0278
35
.0189.0301
40
45
•
.0333.0403 .0468
.0365 .0442 .0513
.0394 0477 .0554 .0625
.0202.0321 .0421 .0510 .0592
.0215 .0341 0447.0541
.0529
.0586 .0641 .0693 .0743
.0579
.0642 .0702 .0759
"
.0693 .0758
.0669
.0741 .0810 .0876 .0940
.0827
.0814
.0879
0628
.0709
.0786 .0859 .0929 .0997
.0050
.0226 .0359 .0471 .0570 .0662
55
.0237 .0377
60
.0248.0394
.0516 .0625
65
.0258.0410
.0537.0650
70
0268 .0425
.0557.0675
.0494 .0598 .0694
.0725
.0755
.0783
.0748 .0828 .0906 .0980
.0784 .0869 .0950
.0819 .0908 .0992 .1073
.0852 .0945
.1051
.1027 .1102
.1151
.1033
.1117
.1198
.0884 .0980 .1071
.1159
.1243
.0075
.0277 .0440
.0577 .0699 .0811
8888
80 .0286 .0455
.0596.0722 | .0837
.0916 .1015
.0946 .1048
1109
.1200
. 1287
.1145
.1239
1329
•
85 .0295 .0469
.0614 .0744.0863 .0975.1080
.1181 .1277
.1370
95
90 .0304 | .0482
.0312.0495
.0632.0765 .0888
.0649.0786 | .0912
.1003 .1111
.1030 .1142
1215 .1314
.1410
.1248
.1350
.1448
.0100
.1486
.0320 .0508
•
.0666 .0807 0936 .1057
1281 .1385
.1172
HYDRAULIC TABLES
3
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v=
v=(1.486/n)r2/3g1/2—Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)
r=hydraulic radius in feet
$=slope

1.1
1.2 1.3
1.4 1.5
1.6
1.7
1.8 1.9
2.0
75
•
ཡཡོཋ ༔ཡོཝཋཨཽ
00005
.0112.0119 .0125 . 0132
10 .0158.0168 .0177.0186
15.0194 .0206.0217.0228
20.0224.0237.0250 | .0263
25.0250 .0265.0280
0280.0294
.00030
.0274.0291.0307 | .0322
35.0296.0314.0331 .0348
40 .0317 .0336 | .0354 | .0372
45 | .0336 | .0356.0376 | .0395
50.0354.0375 | .0396 | .0416
00055
•
•
.0371 0394 0415 .0436
60 .0388 . 0411 .0434.0456
65 | .0405.0428 .0451 .0474
70.0419 .0444 | .0468 | .0492
.0434 0460 .0485 .0509
85.0462
.00080.0448.0475 .0501.0526
.0489.0516 | .0542
90.0475 .0503 | .0531 .0558
95.0488.0517 .0546.0573
100.0501 | .0531 | .0560 | .0588
0011
.0525
12.0549
•
•
0557 .0587 0617
0581.0613 | .0644
13.0571.0605.0638 | .0671
0628.0662 | .0696
14.0593
15.0613.0650.0686 | .0720
•
.0138 .0144
.0195 .0203
.0239 .0249
.0275.0288
.0308 | .0321
0337.0352
.0364 .0380
.0389 .0407
.0413.0431
.0435 .0454
.0457.0477
.0477 .0498
.0497 .0518
.0515.0538
.0150.0156 | .0161
.0167
•
0212 .0220 .0228
.0236
•
.0259 0269.0279
.0289
.0299
•
.0311.0322
.0334
.0335 .0348.0360
.0373
.0367 .0381
.0395
.0409
.0396.0411 .0427
.0441
.0423 | .0440
0456
.0472
•
0449.0467 | .0484
.0500
.0473.0492 .0510
.0528
.0496 .0516 .0535
.0553
.0519
.0539.0558
.0578
.0540
.0561 .0581
.0601
.0560 .0582.0603
.0624
.0533 .0556
0580.0602 | .0624
.0646
.0551
•
.0575 .0599.0622 | .0645
.0568 .0593 .0617.0641.0665
.0584 0610.0635 0660.0684
.0600.0627 .0653 0678.0703
.0616 .0643.0669
.0667
.0688
•
.0708
•
.0727
.0695 . 0721
.0746
.0646.0674
.0702.0729 | .0756
.0782
.0675 .0704
.0733.0762 | .0790
.0817
.0702.0733
.0763.0793 | .0822
.0851
.0729.0761
.0792.0823 .0853
.0883
.0754 .0787
.0820.0852 | .0883 .0914
.0016.0633 | .0671
.0708.0744
0779.0813
.0847 .0880.0912
.0944
17
.0653.0692.0730.0767
0803.0838.0873 .0907.0940
.0973
18
•
0672.0712 | .0751
.0789
.0826 .0862
.0898.0933 | .0967
.1001
.0690
.0732 | .0772 | .0811 .0849 .0886
20.0708.0751.0792.0832
.0923.0959 | .0994
.1028
.0871 .0909
.0947.0984 | .1020
.1055
0792
0839
35 .0937.0993
•
40
.0050.1120
55.1174
60
.1227
65
.1277
70
0075
80
.1371
. 1416
•
85
.1460
·
0025
30.0867.0919
.1001 .1061 .1119
45 .1062 1126.1188
1187.1252
.1245 .1313.1379
.1300 .1371 . 1441
.1570.1639
. 1325.1404 | .1481 .1556 .1629
•
.0885.0930
0974.1016
.1058 .1099
. 1140
.1180
.0970.1019
1067.1113
.1159
.1204
.1249
.1292
1047 .1100
.1152.1203
.1252
. 1301
.1349
•
.1396
. 1176 .1231 .1286
. 1248 .1306
.1339
.1391 .1442
.1492
.1364
.1420 .1475 .1529
.1582
1315
. 1377
.1438
.1444 .1508
.1509 .1575
.1497.1555 | .1612
.1668
.1570.1631.1691
.1749
.1640.1703 .1766
.1827
1353.1427 1499
•
.1707.1773 | .1838
.1902
.1701
. 1771.1840 |.1908
.1974
1453.1533 | .1611 .1687
.1761
.1833.1904 1974
.2043
1501.1583 | .1664 .1742
. 1818
.1893.1967.2039
.2110
.1547.1632 | .1715
.1795 .1874.1952.2027.2102
.2175
90.1502
95.1544
.1592 .1679.1764
1636.1726 | .1813 . 1898
.1847.1929
.2008.2086 .2163
.2238
. 1981
.2063
.2143 2222
2299
1678 1770 0100
2359
.1584 •
•
•
2280
2117 .2199
•
1860 1947
•
2033
4
HYDRAULIC TABLES
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v=(1.486/n) r2/3 g¹/2
·(1.486/n) r2/3s1/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r=hydraulic radius in feet
8=slope
2. 1
2.2 2.3
2.4 2.5 2.6 2.7 2.8
2.9
3.0
00005
•
•
15.0299 .0308 0317.0326 .0335 .0344 | .0353
.0172 | .0178.0183.0188.0194 | .0199 | .0204.0209 | .0214
10 .0244 .0251 .0259 .0266 0274 .0281 .0288
.0219
.0295 .0302
.0309
.0362.0370
.0379
•
20 0345.0356
.0366 .0377
.0387
25
.0385 .0397 .0409
.0421
.0433
.0397 .0407
.0444
.0417 .0427
.0437
.0456 .0467 .0478
.0489
.00030
35
•
0422.0435 | .0449
.0456 0470.0484
.0462
•
0474.0487.0499.0511.0523
.0535
.0498
40.0487
45.0517
•
50 .0545
.0503 .0518 .0533
.0533
0562
0549 | .0565
•
·
.0548 .0562
.0581
0579.0596.0612.0628.0644
.0512 | .0526 .0539 | .0552 | .0565
.0576 0590 | .0604
.0596 .0611 .0626 | .0641
.0578
.0618
.0656
.0660 .0676
.0691
00055
.0572
.0590
.0607
.0625.0642
.0659
.0676.0692 .0709
.0725
60
22:
65
.0621
.0596.0616.0634
.0641.0660 .0679.0698 | .0716
.0653.0671 | .0688
.0706.0723 | .0740
.0757
70
•
75
•
0667.0688 0709.0730 .0750
.0645 0665.0685.0705.0724 .0743 .0762 .0781 .0800
.0735.0753.0771
.0788
.0818
•
0770.0789 0809.0828
•
.0847
95
•
·
.1034 .1066 .1099 . 1130 .1161
.00080.0689 0711
.0732.0753 | .0774 | .0795 | .0815.0835.0855
85 .0711.0733 .0755.0777.0798 .0819.0840 | .0861 .0881
90.0731.0754 .0777 .0799.0821 | .0843.0864.0886
.0751.0775.0798.0821.0844.0866.0888.0910.0931
100 0771 | .0795 | .0819 .0842 | .0866
•
.0011.0808.0834 .0859 .0884.0908
12.0844.0871 .0897.0923 | .0948 .0973 | .0998 | .1023
13.0879 .0906.0934.0960 |.0987 .1013.1039 |. 1064
14 .0912.0941 .0969 .0997 .1024.1051
.1051.1078 .1105
.0944.0974 .1003
.1032.1060.1088 .1116.1143
15
.0016
17
18
. 1047
.0874
.0901
.0907
.0927
.0953
.0889.0911.0934.0956
0932 .0956.0979
.0978
.1002
. 1025
.1071
•
1090
.1115
•
.1131
.1157
.1170
.1197
0975.1006.1036.1066.1095 | .1124.1153 | .1181
1005.1036.1068 .1098.1129 .1159 .1188 .1218
.1209
.1236
.1246
1274
.1192.1222 .1252
.1282
. 1311
19
. 1062.1096
•
20
.1090 .1124
1129
1158
.1161 .1193
.1225.1256 | .1287
.1317
.1347
•
. 1191 .1224
1257.1289 . 1320
.1352
. 1382
0025
30
35
.1442
.1487
40
. 1541
45
.1635.1686
. 1218 | .1257
1335
. 1377
.1295
.1418.1459 | .1499
.1532 1576.1619 |
.1590 .1638 . 1685 . 1731
.1737.1787 . 1836
. 1332.1369
1405.1441
.1476
.1511
.1546
.1539 .1578 .1617.1655
.1662 | .1705 | .1747
. 1693
.1788
. 1829
. 1777 .1822 .1867.1911
1885 . 1933 .1980 .2027
. 1955
.2074
.0050
.1723.1777
.1831
55
65
.2229
•
.2456
·
·
.1987.2037 | .2087
.1807.1864 . 1920.1976.2030.2084 .2137 .2189 .2241
60 .1888.1947.2006 .2063.2120 | .2177 .2232.2287 | .2341
.1965 .2027 .2088 .2148 .2207 .2265.2323 .2380 .2436
70.2039.2103.2166
2290 .2351 .2411 .2470 .2528
.0075 .2110.2177
2177.2242
80
.2180 2248 .2316
85.2247 .2317 .2387
90 .2312 2385
95
2375.2450
.2456.2527.2597.2666.2734 .2801 .2867
.2524 . 2596 | .2668
1884 1936
. 2137
.2186
.2292
.2394
.2492
•
·
2586
.2307 .2371 .2433.2495
.2557 .2617
.2677
2383 .2448.2513 .2577
·
2640.2703
.2765
.2524 . 2591 .2657 .2722 .2786
.2850
.2932
.2739.2808 | .2877 .2946
.3013
2737 2810 .0100.2437
3091
2514
·
.3022
•
2589 .2664 •
•
2881 .2952
HYDRAULIC TABLES
5
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v= (1.486/n)r2/3g1/2—Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)
T=
hydraulic radius in feet

8 = slope
3.1
3.2 3.3
3.4
3.5 3.6
3.7
3.8 3.9
4.0
.00005
10
.0316
15
.0387
.0223 .0228
.0233
.0323 .0329
.0395 .0403
20
.0447 .0456
.0466
25
.0500 .0510
.0521
.0238 .0242 .0247 .0251
.0336.0343 | .0349 .0356
.0412 .0420 .0428.0435
.0475 .0484 .0494.0503 0512❘ .0521
.0531 .0542.0552 | .0562
0256 .0260
.0265
.0362.0368
.0374
•
.0443.0451
.0459
•
.0530
·0572.0582
.0592
.00030
.0547 .0559 .0571
35
40
45
50
.0706
.0591 .0604 .0616
.0632 .0645 .0659
.0670 .0685 .0699
.0722.0737
.0582.0593
.0593.0605.0616.0627.0638
.0629 .0641
.0653.0665.0677.0689
.0649
.0701
.0672.0685.0698.0711
.0724.0736
.0749
.0751
.0713 .0727.0741.0754.0768 .0781
.0766.0781.0795 .0809 .0823
.0794
.0837
00055
·
60
70
.0836
75
.0865
.0741 .0757 .0773 .0788
.0774 .0791 .0807 .0823
65 .0806 .0823 .0840 .0857
.0854 .0872 .0889
.0884 .0902 .0920
.0803.0819 | .0834 0849 .0864
.0839 .0855.0871 .0886 .0902
.0873.0890.0906.0923 | .0939
.0906.0924.0941.0957 | .0974
.0938.0956.0974.0991.1008
•
.0878
.0917
.0955
.0991
.1026
00080
•
.0894 .0913 .0932 .0950
85 .0921 .0941 .0960 .0980
90 .0948 .0968 .0988 .1008
•
.0969 0987 .1005 .1024.1041
.0999 .1018 .1036.1055 | .1073
.1028.1047
:1059
.1092
.1066.1086 .1105'
.1123
100
95 .0974 .0995 .1015 .1036 1056.1076 .1096 .1115 .1135
.0999 .1021 .1042
•
.1154
.1063.1083 .1104.1124
.1144 .1164
.1184
.0011
12
13
14
.1048 1070 .1093 .1114 .1136 .1158.1179
.1094 .1118 .1141 .1164 .1187
. 1139 .1164 .1188 .1212 1235
.1182 .1207 .1232 .1257 .1282
15 .1224 .1250 .1276 .1301
.1200 .1221
.1242
.1209 .1231
.1254 1275
.1297
•
.1259
.1306
.1282
.1330
.1305 .1328 . 1350
.1354.1378
.1401
.1327 .1352
·
1377 .1401 .1426
.1450
.0016
17
18
. 1264 .1291
.1303 .1331
.1340 .1369
19
.1377.1407
20
.1413 .1443
.1318 .1344
.1358 .1385
.1397 .1426
.1453 .1481
.1436 .1465 .1493
.1473 .1503.1532
.1370.1396
.1422 | .1447 | .1473
.1498
.1412.1439
.1466.1492 | .1518
.1544
.1508.1535 .1562
.1589
.1522
.1561
.1550 .1577 .1605
.1633
.1590.1618
.1647
.1675
.0025
.1580 .1614
30 .1730 .1768
35 .1869 .1909
40 .1998 .2041
45 .2119 .2165
•
.2210
•
.1647 .1680 ..1713
.1804.1840 .1876
.1949 .1988 .2027
.2083 2125 .2167
2254 .2298
.1745 .1777 .1809 . 1841
.1912.1947 .1982 | .2017
.1872
.2051
.2065.2103
•
2141.2178
.2215
2208. .2248
.2289
.2329
.2368
2342 .2385
.2427
.2470
.2512
.0050
55
.2234
.2282
2329
•
.2343 2393 .2443
2376
.2492 .2541
2422
•
4
2468 .2514
2559.2603
2648
•
60
2447
.2500
•
70
.0075
.2552 .2603 .2654
65 2548 .2602 .2656 .2709 .2762
2643 .2700 .2756 .2811 .2866
.2736
.2589 .2636 .2684 .2731
.2704 .2754.2803 .2852
.2814.2866.2917.2968
.2777
.2901
.3019
.2920 .2974.3028 | .3080
.3133
80 .2826
85 .2913
90 .2997
95 3079
•
.3210 .3275
.2795 .2852 .2910 .2967
.2886 .2946 .3005 .3064
.2975 .3037 .3098 .3158
.3061 .3125 .3188
.3145
.3023
.3079 .3134 .3189
.3242
.3122
.3180 | .3237 | .3293
.3349
.3250
.3218 .3277 .3336 .3395
.3311 .3372 .3433
.3452
.3493
.3552
.3339
3402 .3465
.3527.3589
.3650
.0100
3745
.3159
.3491.3555 .3619 3682
3227
.3426
.3294 3360
6
HYDRAULIC TABLES
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v=(1.486/n)r2/3g1/2.
(1.486/n)r2/3g1/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)
r-hydraulic radius in feet

'8=slope
4.2
4.4
4.6
4.8 5.0 5.
5.2
5.4
5.6
5.8
6.0
00005
.0274
.0282
10 .0387
.0399
.0291 .0299
.0411 .0423
.0307
.0315 .0323
.0331 .0339
.0347
15
.0474 .0489
.0503
.0435
.0518 .0532
.0446
.0457
.0469 .0480
.0491
.0546
.0560 .0574 | .0588
.0601
20
.0547 .0564
.0581
.0598 .0615
.0631
.0647.0663 | .9678
.0694
25
.0612.0631 .0650
.0669 .0687
.0705
.0723 .0741.0759
.0776
.00030
.0670 .0691
.0712 .0732
.0753 .0773
.0792.0812 | .0831
.0850
35! .0724
.0747
.0769
.0791
.0813 .0834
.0856.0877 | .0897
.0918
40.0774 .0798
.0822
.0846
.0869 .0892
.0915.0937 | .0959
.0981
45 .0821
.0846
.0872 .0897
.0922.0946
50
.0865
0892
.0919
.0946
.0972 .0997
.0970 .0994.1018
.1023
.1041
.1048.1073
.1097
00055 .0907
.0936
.0964
.0992
. 1019
60.0948
.0977 .1007
.1036
.1064
.1046
.1092
•
65.0986
.1017 1.1048
.1078
.1108
. 1137
1073.1099 .1125
.1120.1148 .1175
.1166.1195 .1223
.1152
. 1202
.1251
70.1024
.1056.1087 .1119
.1150
.1180
.1210.1240 | .1269
.1298
75.1059
.1093 .1125
.1158
.1190
.1222
•
1253.1284 .1314
.1344
00080
.1094
1129
.1163
.1196
.1229
1262
•
.1294 . 1325
.1357
.1388
85 .1128
.1163
.1198
. 1233
1267
.1300
. 1334 .1366
.1399
.1431
90 .1161
. 1197
. 1233
.1269
.1304
. 1338
.1372.1406
.1439
.1472
95
.1192
.1230
.1267
.1303
.1339
.1375
. 1410 .1444
.1479
. 1512
100
·
.1223 1262 .1300
.1337
. 1374
. 1410
.1446
.1482
. 1517
•
. 1553
0011
.1283 .1323 .1363 .1402
.1441
.1479
.1517 .1554 .1591
. 1627
12
.1340.1382
.1424 .1465
.1505
. 1545
.1584.1623 .1662
.1700
13
.1395
.1439 .1482 .1525
.1567
.1608
.1649.1690 | .1730
.1769
14 .1447 .1493
•
.1538 .1582
.1626
. 1669
.1711
.1753.1795
.1836
15
.1498 .1545
.1592.1638
.1683
.1727
. 1771
. 1815
.1858
.1900
0016
.1547
17 .1595
1596
.1645
.1644 .1691
.1738
.1784
.1830
.1874.1919
. 1963
. 1695
.1743
. 1792
. 1839
.1886
.1932.1978
.2023
18.1641
19.1686
20 .1730
.1693 .1744
.1739 | .1792
.1784 .1838
. 1794
1844
.1892
.1941
.1988 .2035
.2082
.1843 .1894
.1944
.1994.2043 .2091
.2139
.1891
.1943
.1995
.2046 .2096.2145
. 2194
0025 1934
. 1995
2055
.2114 2173
·
30.2119
35 .2289
.2186
. 2251
.2316
2380
.2361 . 2432
.2230
.2443 .2505
2287
2343 .2399
2454
2567 .2628
•
2688
.2502
.2571
•
40
. 2447
45
.2595 .2677
.0050
55
•
65
2524 .2600 .2674 .2748
.2757 .2837
.2735.2821
.2869
60.2996
2959
.3091
.3119.3217 | .3314 .3409
70 3237 .3338 .3439 .3538
•
.0075.3350 3456 .3560.3662
80 .3460 .3569 | .3676 | .3782
85 .3566.3679 | .3790 .3898
90.3670.3785.3899 | .4012
95 .3770.3889 | .4006 .4121
.4122
.4235
2639 .2706
.2821 .2893
.2772.2838
.2903
.2964 .3034
.3103
.2915
2992
.3068
•
.3144.3218
.3292
•
.2906.2990
.3048.3136
3184.3275
.3072
.3154 .3234
.3314.3392
.3470
.3222 .3308 .3392
.3475 .3558
.3639
.3366 .3455
.3543
.3630.3716
.3801
.3503 .3596 3688
.3635 .3732
•
.3778 .3868
.3956
.3827
3921 .4014
.4105
.3763
.3886 .3989
.4006
.3863
.3961
4058 .4154
.4249
.4091
•
4191 .4291
•
.4112 .4217
.4231.4339
.4347 .4458
.4320 .4423
.4446 .4551
.4567.4676
4389
.4524
•
4655
4782
•
0100
4907
3868 3990 4110
•
•
4228 4345
4686 4797
.4460 4574
HYDRAULIC TABLES
7
Table 1.—Values of nv corresponding to different values of r and s
in Manning's Formula, v=
v=(1.486/n)r2/3g1/2.
= (1.486/n) r²/3g1/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r=hydraulic radius in feet
$ = slope
6.2
6.4
6.6
6.8
87.0 7.2
7.4
7.6
7.8
8.0
00005
.0355.0362
.0370
.0377 .0385
.0392
.0399 .0406
.0413 .0420
10
.0502.0512
.0523
0533 .0544
.0554
.0564.0574
.0584
.0594
15.0614.0627
.0640
.0353
.0666
.0679
.0691 .0704
.0716
.0728
20.0709 | .0724
.0739
.0754
.0769
.0784
.0798
.0812 0826
·
.0841
25.0793 | .0810
.0827
.0843
.0860
.0876
.0892
.0908
.0924
.0940
•
00030 | .0869 0887
•
35.0938.0958
.0906 .0924
.0942
.0960
.0977
.0995
. 1012
.1030
.0978 .0998
.1017
.1037
.1056
.1075
.1093
. 1112
40 . 1003
.1025
. 1046.1067
.1088
.1108
.1129
. 1149
.1169
45
. 1064
. 1087
.1109 . 1132
. 1154
.1175
. 1197
. 1219
. 1240
50
1121
.1145
. 1169
1193
. 1216
.1239
.1262
.1284
. 1307
•
•
00055 | .1176
.1201 .1226.1251
. 1275
.1299
. 1323
.1347
1371
.1189
. 1261
1329
.1394
60.1229
.1255.1281
. 1307
65 . 1279
1306. 1333
. 1360
.1332
.1386
. 1357
•
.1332 .1407
.1432
.1456
. 1413
.1439.1464
.1490
. 1515
70.1327
.1355 .1383
. 1411
.1439
.1466
.1493 .1520
.1546
. 1573
75
. 1374
.1403
.1432
.1461
. 1489
. 1517
•
. 1545
.1573
.1601
. 1628
00080
. 1419
.1449
.1479
.1509
85
.1462
.1493
.1524
.1555
•
90
.1505
.1537.1569 .1600
.1631
95
100
. 1546
.1586
•
1579.1612 | .1644
1620.1653 | .1687
1538
. 1585
. 1676
.1567
. 1615
. 1662
.1720.1752
.1596
. 1625
.1653
. 1681
. 1645
. 1675
.1704
. 1733
•
.1708
1693
1739
.1723
. 1753
. 1783
. 1771
.1801
. 1832
.1785.1817
.1848
.1880
.0011
. 1663
•
.
1699 1734.1769
12 . 1737
1774. 1811
.1848
1804
.1884
. 1838
1872
•
. 1905
.1938
.1971
. 1919
.1955 . 1990
.2025
.2059
13
. 1808
1847 .1885
.1923
. 1961
.1998
.2035 .2071
. 2107
. 2143
14.1877
15. 1942
•
1917.1956 .1996
.2035 .2073
.2111 | .2149
.2187
2224
•
.1984.2025 | .2066 . 2106
.2146
.2186 .2225
.2264
.2302
0016
17
.2006
.2068
•
2049 .2091
.2134.2175 .2216
2257
.2298
.2338
.2378
•
2112 .2156 .2199 2242.2285
•
2327
·
.2368
.2410
.2451
18 .2128
. 2173
.2233
.2218
. 2279
•
0025
40
19.2186
20
.2243
2291 2338 .2385
•
.2508 2561.2614 . 2667
30 .2747.2806 .2864.2921
35.2967.3030 | .3093 | .3156
.3172.3240 .3307.3373
3364 3436.3507 .3578
45
.0050 3546 3622 .3697 .3771
55 .3719 3799 .3878 .3956
60.3885 .3968 .4050.4132
65.4043.4130 4215.4300
70.4196 .4286.4375
•
.3845.3918 .3990
.4033 .4109.4185
.2263
.2325
•
2307 2351 .2394
. 2437
.2480
2522
•
2370
•
.2415.2460
.2504
.2548
.2591
.2432
.2478.2524
.2569 .2614
.2658
. 2719
.2978
. 2770
.3035
•
2822 .2872
.2922
.2972
.3091 .3146 .3201
.3256
.3217 .3278
.3338
.3398 .3458
.3517
.3439.3504
3569 .3633 .3696
.3759
•
3648.3717
.3785
.3853 .3921
.3987
.4062 .4133 .4203
.4260 .4334
.4408
.4212 .4292.4371
.4449 .4527
.4604
.4462
.4384 .4467 .4549 .4631 .4712
.4550.4636
.4792
.4721 .4806 .4890
.4973
.0075
•
•
80
•
85
4343 4436 4528.4619.4709.4798
.4486 .4582 4677 4771.4864 .4956
.4624 | .4723 .4820 .4917.5013 | .5108
90.4758
.4758.4860
.4860.4960
骣
​4887 .4975 .5061
.5148
.5047 .5138 .5227
.5316
•
•
.5203 .5296 .5388
.5480
95
4888 4993 5096
•
.5060.5159 | .5256
.5199.5300
.5353 .5449 .5545
.5639
.5401
.5500
5599 .5697
.5793
.0100
1.5643 .5744 .5845 .5944
.5015.5122
5334.5438 .5541
.5229
8
HYDRAULIC TABLES
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v= (1.486/n) r2/3g1/2—Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)
r-hydraulic radius in feet

>=slope
8.2 8.4 8.6
8.8 9.0
9.2
9.4
9.6 9.8
10.0
•
00005
"
.0427 .0434 .0441
.0448.0455
.0461.0468
0475.0481
.0488
10 .0604.0614 .0624
.0633.0643
15
.0740.0752 | .0764
.0776.0787
.0653 | .0662 | .0671 .0681
.0799.0811.0822
.0690
.0833
.0845
20
.0855
25
.0955
.0868.0882
.0971.0986
.0896 | .0909
.0923 0936.0949 .0962
.0975
.1002 .1017
.1032
.1047 1061.1076
.1091
00030
1047
•
.1064
.1080.1097
35
. 1131
•
.1149 1167 .1185
.1114
.1203 1221
. 1130
.1146
.1163 .1179
. 1195
•
.1238
.1256
.1273
.1290
40
.1209
.1228 .1248.1267
45
.1282
.1303
. 1323
50
. 1351
. 1373
.1395
.1286
.1344 .1364
.1416 .1438
.1305
. 1324
. 1343
.1361
.1379
. 1384.1404 | .1424
.1444
.1463
.1459.1480
.1501 1522
. 1542
•
00055
. 1417
•
60
65
.1480
1541
. 1440
.1504
. 1566
.1463
1485 . 1508
1530
•
. 1552
•
1574.1596
.1618
•
22
70
.1599
75
.1655
. 1528
•
1590
.1625 . 1650
.1682.1708
•
1552 . 1575
.1598 . 1621
•
.1644.1667
.1690
. 1615
.1639
1664 . 1687
.1711 .1735
.1758
.1676 .1701
•
1726 | .1751
.1776
.1801
.1825
.1735 .1761 1787 1813. 1838
•
.1864
.1889
00080
1709
.1737.1764
85
.1762
.1790
. 1819
.1792.1819. 1845.1872.1899
.1847.1875 | .1902 | .1930 .1957
.1925
.1951
.1984
.2011
90
. 1813
.1842
. 1871
.1900 .1929 . 1957.1986 .2014 .2042
.2069
95
. 1863
.1893
. 1923
.1952
.1982. 2011
.2040
.2069 .2098
.2126
100
. 1911
. 1942
. 1973
.2003
•
2033.2063
.2093
.2123 .2152
.2181
.0011
བྱུཋཋཝཋ ྗཋཝཋན
•
12
17
.2004
. 2093
. 2179
.2261
.2340
2417
. 2491
.2564
+
.2634 .2677
.2037
2127
•
2298 2334
•
2378
.2416
2069
.2161
.2214 . 2249
2101
. 2194
.2284.2318
2370
. 2352
.2406 2441
.2453 2490
•
. 2133
.2164
.2195
2226 2257
•
.2288
. 2227 . 2260
•
2293 .2325
. 2357
.2389
2386.2420
.2454
.2487
•
2477 .2512 .2546
.2581
.2527
2563 2600 | .2636
.2671
.2456
2532
.2605
. 2495
.2572
·
2534 .2572
.
2610.2648 2685 .2722
2759
.2612.2651|.2690.2729
.2768 .2806
.2844
. 2646
.2687.2728.2768.2808.2848 .2887
.2926
.2719.2761.2803.2844.2885.2926.2966
.3007
.2702
.2746
.2790.2833
.2875.2918
.2960.3002 | .3044
.3085
0025
.3021
3070
.3119
.3167
•
30 .3310 .3363
.3417
3469
•
.3215 3262 3309 3356 3403
.3522 .3574 .3625
•
+
.3449
3676.3727
.3778
35 .3575 .3633
.3690
40
.3822 .3884
.3945
.3747 .3804.3860 | .3916
.4006.4066 .4127 .4186
.3971 .4026
.4081
4245
·
4304
45
.4054 .4119 .4184
.4362
•
.4249 4313 .4377 .4440 4503 4565
•
·
. 4627
.0050
.4273 .4342 .4411
55
.4481
.4554
•
60 .4681
•
.4479.4546 | .4613 | .4680.4746 | .4812
4626.4697 .4768.4839 .4909.4978 | .5047
4756 4832.4906 .4980,5054 | .5127 .5199 .5271
.4877
.5115
.5343
65 .4872
•
70
.4951.5029 .5107 5184 .5260.5336 .5412.5486
.5056 .5138 .5219 .5299
5379
.5459 .5538 .5616.5694
•
.5561
.5771
0075
.5233 .5318 .5402
5485
5568
•
80
.5405 .5492
.5579 .5665
.5650.5732 .5813 .5893
.5973
85 .5571 .5661
90
.5733 .5825
95 .5890 .5985
.5751.5840
.5751 .5836.5920.6004 .6087
.5928.6015 | .6102.6188 | .6274 .6359
.5918.6009.6100.6190.6279.6368.6456 .6543
.6267 | .6359 .6451 .6542.6633 .6723
.6080.6174
.6169
0100
•
.6043.6141
6524 .6619 6712 .6805 .6897
.6238
6334 6430 •
HYDRAULIC TABLES
9
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v=(1.486/n)r2/3g1/2_
= (1.486/n)r2/3g1/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r-hydraulic radius in feet
8 = slope
10.5 11.0 11.5
12.0
12.5 13.0 13.5
14.0 14.5
15.0
00005 .0504.0520
.0535
10.0713.0735 .0757
15.0873 .0900
.0551 .0566
.0581.0596
.0610
.0625
.0639
.0779
.0800
.0822 .0843
.0863 0884
•
.0904
.0927
.0954
.0980
.1006.1032
.1057
.1082
.1107
20 .1008 .1039
.1071
.1102 .1132
.1162 .1191
.1221
.1250
.1278
25 .1127 .1162
.1197
. 1232
.1266
.1299 | .1332
.1365
. 1397
1429
•
00030 .1234
.1273
.1311
•
1349 .1386
.1423
.1459
.1495
.1530
.1565
35
.1333
.1375
.1416
.1457 .1497
.1537 .1576
.1615
. 1653
.1691
40 .1425
.1470
.1514
.1558 .1601
.1643
.1685
.1726
1767
.1808:
45.1512
.1559 .1606 .1652
.1698
.1743
. 1787
. 1831
•
.1874
.1917
50
.1593
.1643
.1693 .1742
.1790
.1837.1884
.1930
.1976
.2021
.00055
. 1671
.1724
.1776.1827
.1877
1927 1976
•
.2024.2072
.2120
60
. 1745
.1800.1854 .1908
.1961
.2012
.2064
.2114 .2164
. 2214
65
. 1817
.1874.1930 .1986
.2041
.2095
·
.2148
.2201
.2253
.2304
70
.1885
•
1945 .2003 .2061
.2118
2174
.2229
.2284
. 2338
.2391
75
.1951
.2013 .2073
.2133
.2192
.2250
.2307
.2364
.2420
.2475
.00080.2015
.2079 .2141 .2203
.2264
2324
2383
2441
•
.2499
.2556
85.2077
.2143 .2207 .2271
.2333
.2395
.2456
.2517
•
•
90 .2138 2205 .2271 .2337
.2401
2465
.2528
.2590
2576
.2651
2635
•
.2711
.0011
•
12
•
•
95 .2196 2265 .2334 2401
100.2253.2324
.2363
.2468
.2394.2463
2467
. 2532
2597
•
.2661
2723
.2786
•
.2531
.2598
2664
.2730
.2794
.2858
2438.2511 .2583
.2546.2623
.2655
•
2725 .2794 2863
·
. 2931
2998
•
.2698 .2773
13
. 2569
.2650 | .2730
. 2808
14
.2666
.2750.2833
15.2760
•
.0016 2850 2940.3028
17 2938.3030 .3122
18.3023 .3118.3212
19 .3106 .3204.3300
20 .3187 .3287 .3386
.2847.2932
.3017 .3100 .3182
.2886
.2914 .2995 .3074 .3152 .3230 .3306
.2846 .2919
.2990.3061
.3131
.2962 .3038
.3112 .3186
.3259
.3382
.3263 .3343
.3422
.3500
.3116 .3201 .3286 .3370 .3453
.3211 .3300 .3387 3474 .3559
.3534
.3615
.3643
.3727
.3305 3396 .3486 .3574 .3662 .3749
.3835
.3395 .3489 .3581 .3672
.3483 .3579 .3674 .3768
.3763.3852
.3940
.3860.3952
.4042
0025.3563 .3675 .3785
30.3903.4026
35 .4215 .4348
40 4507.4648
•
•
45 .4780 .4930
0050 .5038 .5197 .5353 5508
55 .5284 .5451 .5615.5776
60 .5519 .5693 .5864.6033 .6200
65.5745 .5926.6104 | .6280
70.5962.6149 .6334 .6517
.6453
•
.3894 .4002 .4108 .4213
.4147 .4266 .4384 .4500 .4615
.4479 .4608 .4735 .4861 .4984
4788.4926 .5062 .5196 .5328
5079 .5225 .5369 .5511 .5652
.5659
.4316 .4418
.4519
.4728 .4840
.4950
.5927
.5107 .5228
.5459 ..5588 .5716
.5790
.5347
.6063
•
•
.5936 6093.6248 .6402
.5809 5957 .6104 .6248
.6391
.6553
.6703
.6696
.6364 .6526.6686
.6624 .6793 .6959
.6874.7049 .7222 .7393
.6844
.7001
.7124
.7287
.7562
0075
.6171 .6365
6557.6745
•
80
.6373.6574 .6772.6967
85
•
90
95
•
.6931 .7115 .7296 .7475 .7652
.7827
.7159 .7348 .7536 .7721
.7903
•
6569.6776 .6980.7181
.6760 6973.7182 | .7389
.6945 .7164.7379 | .7592
.0100 7125
•
·
.8084
.7379 .7575 .7768 .7958
.7593
7801
.8147
.7794 7993 .8189 .8383
.8008 8212 8413.8612
.8333
.8574
.8809
7350
.7571
•
7789 .8004
8216
8425 .8632 8836
•
9038
563189°
2
44.
10
HYDRAULIC TABLES
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v—(1.486/n)r²/3g1/2——Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)
8=slope
r-hydraulic radius in feet

15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5
.00005 | .0653.0667.0681.0695 .0708 .0722
20
.0735.0748
.0748.0761
.0774
10
.0924
15
.1131
.0944.0963.0982 | .1002 | .1021
.1156.1180 .1203.1227 .1250
.1039 .1058.1077
.1095
.1273
. 1296
. 1319
. 1341
20
.1306
•
1334.1362
.1389 .1417
.1443
.1470
.1496
.1522
. 1548
25
1461
.1492.1523
1553
.1584
. 1614
.1644
. 1673
.1702
. 1731
00030
35
•
1600.1634
.1668
. 1702
-
.1735 | .1768
. 1800
. 1833
·
.1865
.1896
1728.1765
.1802
.1838.1874 | .1909
.1945
. 1979
.2014
.2048
40
. 1848
.1887 1926
•
45.1960.2002 | .2043 | .2084
50 .2066.2110 | .2154
.1965 .2003.2041
.2079
. 2116
.2153
.2190
.2125 .2165
.2205
.2245
.2284
2323
.2197
•
2240.2282
2324
.2366
2407
.2448
•
00055
2166.2213 .2259
2304
.2349 2394
•
.2438
2481
2525
•
.2568
60
2263 .2311 .2359
2407
.2453 2500
•
.2546
65
75
ပေး
.2355 .2406 .2455
.2505
2554.2602
2650
.2592
. 2698
.2637
.2682
2745
.2791
•
70
•
2444 .2496 .2548
.2599
.2650 2700
.2750
2799
. 2530 .2584 .2638
.2848
.2897
.2691
.2743 | .2795
.2847 .2898
.2948
2998
•
.00080
.2613 | .2669 .2724 2779.2833.2887
•
.2940
.2993
.3045
.3097
85
.2693.2751.2808.2864.2920
.2976
.3030
.3085
.3139
.3192
90
2771
.2831.2889 2947.3005 | .3062
.3118
.3174
3230
•
.3285
95
2847
•
.2908.2968
3028.3087 | .3146
.3204
.3261
.3318
.3375
100
2921
2984
•
.3046
•
3107.3167.3228
.3287
.3346
.3404
.3462
.0011
12
13
14
15
.3064 .3129 .3194
.3200.3269 .3336
.3331 | .3402
.3402.3473
.3457.3530 | .3604
.3578 .3654 .3730
•
3258 3322 .3385 3447
.3509
.3571
3631
3403 .3470 .3536 .3601
.3665
.3729
.3793
•
.3542.3611 .3680 .3748 .3815
.3882
.3948
.3805 3879.3953 .4026 .4098
3676.3748 .3819 3889 .3959 .4028
4097
.4170
.4241
.0016
.3695
.3774.3852
.3930.4007 .4083
.4158 .4232
. 4306
.4380
17
18
3809 .3890.3971 4051 .4130.4208
.3919.4003 .4086 .4168 4250 .4330
•
.4286
.4363
.4439
.4514
4410
.4489
19
.4027.4113 .4198
20
.4131 .4220 .4307
4282 .4366 .4449
.4394 .4479
4567
•
4645
.4531
.4564
.4612
.4649 .4732
4693
•
4773
.4815 .4897
0025
•
30
35 .5465
40.5843
•
.4619.4718 .4816 .4912 5008 5103
.5060.5168.5275.5381.5486 5590
.5582.5698.5812.5926.6038
.5968.6091.6214.6335.6455
5197.5290
•
.5383 .5474
5693 .5795
.5897
.5997
.6149
.6260 .6369
6477
.6574 .6692 .6809
.6925
45.6197 6330 .6461
.6591.6719.6847
.6973 .7098 .7222
.7345
•
0050 6532.6672 .6810.6947
•
.8220 8380 .8539
55 .6851.6998 | .7143 |.7286.7428 | .7569
60 .7156 .7309.7460 | .7610.7759.7906
65 7448.7607 .7765.7921 .8075.8229
70.7729.7894.8058
0075
80
.8000.8171.8341.8508.8674
.8839 .9002 .9163 .9323 .9482
.8439.8614.8787.8959.9129 .9297 .9464 .9629
.8879.9058 | .9235 .9410 .9583 .9755.9925
.9137.9321 .9502.9683 .9861 1.0038 1.0213
.9387.9576
.8263
.9793
85.8517
.8699
1.0094
90.8764.8951
1.0387
95.9004 .9197
.9763.9948 1.0131 1.0313 1.0493
1.0672
.7083 .7217
.7350 .7482
.7612
7742
7709
.7847
7984
8120
.8051
.8196
.8339
.8481
.8380
.8531
.8680
.8827
.8697
.8853
→
9007 .9161
.0100
9631 9825 1.0016 1.0206 1.0394 1.0581 1.0766 1.0949
.9238 .9436
•
HYDRAULIC TABLES
11
Table 1.—Values of nv corresponding to different values of r and s
in Manning's Formula, v= (1.486/n) r2/31/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r=hydraulic radius in feet
8=slope
21
22
23 24 25 26 27
28
2930
00005
.0800 .0825 .0850
.0874.0898.0922.0946.0969 | .0992
.1014
10
15
. 1131
.1385
20
. 1600
.1650
25
.1788 .1845
.1167 .1202
.1429 .1472
.1700 .1749
.1900 .1955
.1236
.1514 1556
.1797
.2009 |
.1271
·
.1304.1337 | .1370 .1403
.1597 | .1638 | .1678
. 1844 .1891 .1938 .1984
.2062 | .2115|.2167.2218
.1435
.1718
.1757
2029
.2268
00030
. 1959
.2021
.2082
35
40
45
. 2116 .2183 .2248
.2262 .2333 .2404
.2399 .2475 .2549
.2142
.2313
2201 2259
·
•
.2316.2373 .2429
.2485
2377 2440
.2502 2563.2624
.2684
•
2473 .2541.2608 | .2675 2740.2805
.2869
.2623 | .2695 |.2767
.2837.2907 | .2975
.3043
50
. 2529
.2609
.2687
.2765.2841 2916
·
.2991 .3064 .3136
.3208
.00055
.2653 2736
2819
60
.2771 .2858
.2944
2900
.3029
.2980.3059
.3112 .3195
•
3136 .3213 3290
•
.3365
65
.2884.2975 .3064
.3152 .3239
3325
.3276 .3356
.3410
3436
.3514
.3493
.3576
.3658
70
.2993 .3087
.3180
.3271 .3361
75
.3098 .3195 .3291
3451 .3538 .3625 .3711
.3386 .3479
.3796
•
3572.3663
.3753 .3841
.3929
00080
.3199
85
•
.3300 .3399
3298 .3402 .3504
.3497.3594.3689.3783.3876.3967
.3605.3704.3802.3899.3995.4089
.4058
.4183
90
.3393 .3500
.3605
•
95
.3486
.3596
.3704
.4458
15
.4381
.4519
.4497
.4655 .4789
.4626
100 .3577 .3689 .3800
.0011 .3751 3870.3986
•
.3910
4101
12.3918 .4042 .4163 4283
13 .4078 .4207 .4333
14 .4232 .4365
•
•
.4018 .4124 .4229 .4333
·
3709 .3812.3913.4012 .4111 .4208
.3811 .3916 4020 .4122 .4223 4323
.4304
4422
4436
. 4537
.4214.4325 | .4436
.4436.4545
4401 .4518 .4633 4747
.4581.4702 .4822.4940
.4754.4880.5004 .5127
.4921 .5051 .5180.5307
.4652
.4758
•
.4859
.4970
.5057
.5173
.5248
.5368
.5432
.5557
.0016
17
18
4524 4667 .4807 4946
.4664 .4811 .4955 .5098
.4799 .4950 .5099 .5246
19 .4930 .5086 .5239 .5389
•
•
5082 .5217 5350 .5481
.5238 .5377 .5514.5650 .5783
.5390 .5533.5674 | .5813 | .5951
.5611
5739
•
.5915
.6087
20
.5058 .5218
.5375
•
•
5529 5682 .5832 .5981 .6128 .6273
.5538 .5685 .5830 .5973 .6114
6254
.6416
.0025
.5655.5834
.6009
30
.6195 .6390
.6583
35
.6692.6902
.7110
40
.7154 .7379 .7601
45
.7588.7827
.8062.8294
0050
.8743
.97961. 0104 1.0408
80 1.0117 1.04351. 0749
85 1.0428 1.0757 1. 1080
90 1.07301. 1068 1. 1401
95 1. 1025 1. 1372 1. 1714
1.07081. 1003
1. 1059 1. 1364
·
.7998 8250.8498
55
.8388 .8653 .8913
60 .8761 .9037 .9309
65 .9119 .9406 .9689
.9463 .9761 1.0055
70
.0075
·
.6182.6353.6521 .6687 .6851
.6772.6959.7143.7325 | .7505
.7315.7516 .7716 .7912.8106 .8298
7820
.8035 .8248 .8458 .8666 .8871
.8523.8749.8972.9192.9409
.8984.9222 .9457.9689 .9918
.9169 .9422.9672.9918 1. 0162 |1. 0402 |
.9577.9841 1. 01021. 0359 |1.0614 |1.0865
.9968 1.0243 1.0515 1.0782 |1. 1047 1. 1309
1.0344 |1.0630 1. 0911 |1. 1189 |1. 1464 |1. 1735
.7013
.7174
.7683
.7858
.8488
9074
.9624
1. 0145
1.0640
1. 1113
1. 1567
1. 2004
1. 1399
1. 1714
1. 2024
1. 1730
1. 2053
1. 2372
1. 12941. 1582 1. 1866
1. 1665 1. 1962 1. 2256
1. 2330 1. 2633 1. 2932
1.26881. 2999 1. 3307
1.2147
1.2546
1. 2425
1.2833
1. 3227
1.3611
1. 2051
1. 2383
1. 2711
1. 30351. 33551. 3671
1.3984
.0100
1. 4347
1. 1311 1. 1667 |1. 2018 |1. 2364 |1. 2705 1. 3042 1. 3374 |1. 3702 |1.4027
12
HYDRAULIC TABLES
Table 1.-Values of nv corresponding to different values of r and s
in Manning's Formula, v=(1.486/n)µ273 §1/2-
(1.486/n) r2/3 §1/2-Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r-hydraulic radius in feet

8=slope
31
32
33
34
35
36
37
38
39
40
00005
.1037
.1059
. 1081
10
.1466
.1498
.1529
.1103
.1560
15
. 1796
.1834
. 1872
20
.2074
.2118
.2162
25
.2319
.2368
. 1910
.2206
2417 .2466
.00030
35
2540
.2594
•
2743 .2802
•
. 1167.1188 .1208
.1680.1709
. 2057 .2093
.2375 2417
.1124.1146
1590 . 1620 . 1650
.1947.1984 | .2021
.2249 .2291 | .2333
.2514 .2562
.2648.2701 | .2754 | .2806
.2860 .2918 .2975.3031
·
.1229
1738
. 2129
.2458
.2609
.2656 | .2702
.2748
.2858.2909 | .2960
.3010
.3087 .3142 .3197
.3252
40
.2933 │. 2996
3058
.3119 .3180 .3240
. 3300 3359 .3418
•
.3476
45
.3111 .3177
.3243
.3308.3373
50
.3279 .3349
3419
.3487.3555
.3437
.3623
.3500 .3563 .3625
.3687
.3690 .3756 .3821
.3886
00055
.3439 .3513
3585
60
.3592.3669 .3745
65
.3739 .3819 .3898
.3658.3729 .3800
.3820.3895 | .3969
.3976 .4054 .4131 .4207
.3870 3939 4008
. 4076
.4042
.4114.4186
.4257
4282 .4357
D
.4431
70 .3880 3963 .4045
75 .4016
•
.4126 .4207
·
.4102 .4187
.4271 .4354
+
4286.4366
4437 .4519
4444 .4521
.4598
4600.4680
.4760
00080
.4148
.4236 . 4324
4411
•
.4497 4582 .4667
. 4751
.4834
. 4916
85
.4275 .4367 4457
·
•
4547 .4636 .4723 .4811
.4897
.4982
.5067
90 .4399 .4493
.4587
.4679
95
100
.4520
.4637 4736 .4835
4617 .4712
.4770.4860 .4950 .5039
.4807.4901.4994.5086 .5177.5267
. 5127
.5214
.5357
.4932 | .5028.5123.5218
.5311 .5404
.5496
0011
.4864
.4968 .5071
.5173.5273 .5373
5472.5571
5668
.5764
12
.5080
.5189 .5296
.5403 .5508 .5612
.5716.5818
.5920
.6021
13
.5287
.5400 .5512
F
5623 .5733 .5842 .5949 .6056
.6162
.6267
14
.5487 .5604 .5720
5835
•
.5949.6062
6174.6285
•
. 6394
.6503
15
.5679
.5801.5921
.6040.6158.6275
.6390 .6505 .6619
.6731
0016
.5866 .5991 .6115
6238
•
17
.6046 6176
6304 .6430
•
6360 .6481 .6600 .6718.6836
6556 6680.6803
.6952
.6925.7046
7166
18
.6222 .6355
.6486 | .6617
19
.6392 .6529
.6664 .6798
·
.6746
.6931
6874.7000 .7126.7250
.7062 | .7192 | .7321 .7449
.7374
.7576
20
.6558 .6698
•
6837 .6975
•
•
7111 7246.7379 .7511 .7643
.7773
0025
30
35
.7332 .7489 .7644 .7798
.8032 .8204.8374 .8542
.8675 .8861.9045
.9227
40
.9274 .9473 .9669
.9864 1.0056 [1, 0247
45 .9837 1.0048 1.0256
1.0462 1. 0666
|1. 0868
.7950.8101 .8250.8398 | .8545
.8709 .8874.9037 .9200.9360
9407.9585.9762.9937 1.0110
1.0436 1.0623 1.0808
|1. 1069 1. 1267
.8690
.9520
1.0282
1.0992
1.1464
1. 1659
.0050 |1.0369 1.0591 1.0811 1.1028 |1. 1243
1. 1456
1. 1667 |1. 1877
1. 2084
1.2290
55 1.0875 1. 1108 1. 1338
60 1. 1359 1. 1602 1. 1842
65 1.1823 1.2076 |1. 2326 |1.2574
1.3062
70 1.2269 1.2531 1.2791 1.3048 1.3303 1.3555
|1. 1566
1. 1792
1. 2015
1.2237 |1. 2456
|1.2674
1.2890
|1, 2080
1. 2316
1. 2550
1.2781 1.3010 1.3237
1.3463
1.2819
1.3303 1.3541 |1.3778
1.4012
1.3805 1.4053 1.4298
1.4541
.0075 1.2700 1.2971 1.3240 1.3506 1.3770 1.4031 1.4290 1. 4546 1. 4800
80 1.31161.3397 1.3674 1.3949 1. 4221
85 1.3520 1.3809 1.4095 1.4379 1.4659
90 1.3912 1. 4209 |1. 4504 |1.4795 1.5084
95 1.4293 1.4599 1. 4901 1.5201 1. 5497
1. 4491 1. 4758
1.4937 1.5212
1.5370 |1. 5653
1.5791 1.6082 1.6371 1.6657
1.5052
1.5023 1. 5285
1.5545
1. 5485
1.5756
1.6024
1.5934 1. 6212
1.6488
1.6940
0100 1.4664 1.4978 1. 5288 |1. 5596 1. 5900 1.6201 11. 6500 1.6796 1.7089
1.7380
HYDRAULIC TABLES
13
Table 1.—Values of nv corresponding to different values of r and s
in Manning's Formula, v=(1.486/n)r2/3g1/2—Continued
(To determine the mean velocity of water, v, divide the tabulated value by the
coefficient of roughness, n)

r-hydraulic radius in feet
8=slope
41
42 43
44
45 46 47 48
49
50
.00005.1249
.1270
.1290
10 . 1767
. 1795
.1824
15.2164
. 2199
•
23
20
.2499
.2539
25
.2794 .2839
2884
•
.2619 .2659
2928.2973
.1310 . 1329.1349.1368.1388.1407
. 1852.1880.1908.1935 . 1963 . 1990
.2234 | .2268 2303.2337 2370 .2404 .2437
.2579
.1426
2017
•
.2470
•
2698 2737 .2776 .2814
.2852
.3016
•
.3060.3103 | .3146
.3189
00030
.3060 .3110
.3159
.3208.3256
•
.3304
.3352 .3399 .3446
.3493
35
.3306 .3359 .3412
.3465.3517
.3569
40
.3534 .3591 .3648 3704
45.3748 .3809 . 3869
50.3951.4015.4078 | .4141
.3621.3672 3723
.3773
•
.3760 | .3816
.3871.3925.3980
.4034
.3929
.3988 | .4047 | .4105 .4163.4221
.4278
.4204.4266 | .4327
.4389.4449
.4510
.00055
4144.4211 4277 .4343
75
65 .4505
70 .4675
.4839
.4578
.4900.4974
•
60 4328 .4398 .4468 .4537
.4650 .4722 .4793 .4864 | .4934 .5004 .5073
.4750 .4826
•
.4409
4605 .4673
.4474 4539 .4603 .4667
4730
4741.4808
.4874
.4949
.5142
.5047 .5120 | .5193
.5265
.5336
•
·
4917 .4995 5072.5149 .5225 .5300 .5375 5449
.5523
•
•
00080
.4998 .5078.5159 .5238.5317 | .5396
85.5151 .5235.5317 | .5400
5474.5551 | .5628
.5704
.5481.5562.5642.5722 | .5801
.5880
•
.5587
90.5301 | .5386 .5472.5556 .5640.5723 | .5806 5888.5969
95 5446 .5534
.5622 | .5708
100
5678 .5768 .5857
.6050
.5795 | .5880 .5965
.5945 .6033.6120
6049 .6133
.6216
6206
.6292
.6378
.0011
•
•
.5860 .5955 | .6049
6049.6143 .6235 .6327 6419 .6509
12 .6121 .6220.6318 .6416.6513 .6609 .6704 .6799
13.6371 .6474 .6576 |.6678 .6778 .6879
. 6600
•
.6689
.6893
.6986
6978.7076 .7174
.7272
14.6611.6718
15.6843.6954
.6824.6930.7034.7138 | .7241 .7344.7445
.7064.7173 | .7281 | .7389.7495 .7601 .7707
·
.0016 7068 .7182.7296.7408.7520.7631.7741.7851 | .7959
17.7285 .7403 .7520.7636 7751 .7866.7979 8092 .8204
18.7496.7618 | .7738 | .7858 .7976.8094.8211 .8327 .8442
19 .7702.7826 .7950.8073.8195.8316 .8436.8555
20 .7902 .8030 .8157 .8283 .8408 .8532 .8655 .8777 .8899
.0025
.8557
.8673 .8791
.9019
.8834.8977 .9119.9260.9400.9539.9677.9813.9949
30.9678.9834.9990 1.0144 1.0297 1.0449 1.0600 1.0750 1.0899
35 1.0453 1.0622 1.0790 1.0957 1. 1122
40 1. 1175 1. 1356
.7546
.7811
.8067
.8316
1. 0084
1. 1047
1. 1286
1. 1449
1. 1611
1. 1772
1. 1932
1. 1535
1. 1713
1. 1890
1. 2066
1. 2240
1. 2413
1.2585
1. 2755
45 1. 1853 1. 2045
1. 2235
1. 2424
1. 2612
1. 2798
1. 2982
1. 3166
1. 3348
1. 3529
.0050 |1. 2494 1. 2696
1. 2897
1. 3096
1.3294
1.3490
1. 3685
1. 3878
1. 4070
1. 4261
55 1.3104 1. 3316
1. 3526
1. 3735
1. 3943
1. 4148
1.4353 1. 4556
1. 4757
1. 4957
60 1.36861.3908 1. 4128
|1. 4346
|1. 4563
1. 4777
1.4991
|1.5203 1.5413
1.5622
65 1. 42451. 4476
|1. 4705
|1. 4932
|1. 5157
1. 5381
1. 5603
1. 5824 |1. 6043
1.6260
70 1. 4783 1. 5022
1. 5260
1.5495 1. 57291. 5961
1. 6192
1.6421 |1.6648
1. 6874
0075 1.5302 1. 5549 1. 5795 1. 6039 1. 6281 1. 6522 1.6760 1. 6997 1.7232
80 1.5803 1.6059 1. 6313 1.6565 1. 6815 1. 7064 1.7310 1.7555 1.7798
85 1.6290 1. 6554 1. 6815 1.7075 1. 7333 1. 7589 |1. 7843 |1.8095 |1.8345
90 1.6762 1. 7034 1.7303 1.7570 1. 7835 1.8099 1. 8360 1.8619 1.8877
1.7466
1. 8039
1.8594
1.9133
95 1.72211.7500 1.7777 1.8052 1.8324 1.8595 1.8863 1.9130 1.9394
1.9657
0100 1.7669 1, 7955 1.8239 1.8521 1. 8800 │1. 9078 1.9353 1.9627 1.9898 | 2.0168
14
HYDRAULIC TABLES
2gH.
.00000 .00001
0000
0001
.0001
.0100 .0106
.9999 .9999
Table 2.*-Depths, D, of equal energy for rectangular cross-
sections expressed as percentage, x, of energy head, He
912
(q1=discharge per foot of width)
If x=tabulated value, D=xH.

.00002 .00003 .00004 .00005 .00006 .00007.00008 .00009
| | |
|
.0110.0115 .0119.0123.0127 .0131 .0135 .0139
.9998 9998 .9998
.9999.9999.9999.9998
.9998
0002
.0143 .0146
.9998.9998
.9998.9998.9998.9997.9997.9997
.0149 .0153 .0156 .0160 .0163 .0166 .0169
. 0172
.9997
.9997
.0003
0175.0178
.9997 .9997
•
.0181 .0183 .0186.0189 .0192.0194 | .0197
.9997.9997 9997.9996 .9996.9996 .9996
.0200
.9996
.0004
•
.0202 .0205.0207.0210.0212 | .0215.0217.0219
.9996.9996 .9996.9996
0222
.0224
.9996.9995 .9995.9995
.9995
.9995
0005
.0226
.9995
.0007
.0008
.0006 .0248 .0250
.9994 .9994
.0268 .0270
.9993 .9993
.0287 .0289
.9992 .9992
.0229 .0231 .0233
.9995.9995 .9995
•
.0252 | .0254 .0256 0258.0260 .0262.0264
.9994.9994 .9994 .9993❘.9993.9993.9993
.0272.0274.0276.0278.0280.0282.0283
.9993.9993 .9993.9992.9992.9992.9992
.0291.0293 | .0294 .0296 .0298
.9992.9992 .9992.9991 | .9991
0009 .0305 .0306 .0308 .0310 0312.0313 .0315
.9991 .9991.9991 .9991
•
.0235 0237.0240 .0242 . 0244
.9995.9994.9994 | .9994
.0246
9994
•
.9994
.0266
.9993
0285
•
.9992
.0299.0301
.9991 .9991
.0303
•
.9991
•
.9991 9990 .9990
.0316.0318
.0320
.9990.9990
.9990
912
2gH.3
.0000
.0001 .0002 .0003
•
•
0004 0005 0006 .0007.0008
·
0009
.001
.002
.003
.004
.005
.
.006
.007
.008
·
.0321 .0337 .0353 .0367 .0382.0395 | .0408
.9990 .9989 .9988 .9987.9986 .9985.9984.9983.9982
.0458.0469 .0481
.9980.9979
.9978
.0564 .0573 .0583
.9970.9969 .9968
.0592.0601 .0611 .0619 0628 .0637 .0646
.9967.9966
.9966.9965.9964
9964.9963
.9962 .9961
.0654 .0663 .0671 .0679 .0687 .0695.0703 .0711 .0719 .0727
.9960 .9959 .9958 .9957.9956.9955 .9954 9953.9952
•
·
.0735 .0742 .0750.0757 0765 .0772.0779.0787.0794
.9949 .9948 .9947 .9946 .9945.9944.9943.9942
.0808 .0815.0822.0829
.9939.9938 .9937.9936
.9929
.0940
•
9928
.0946
•
.0876 .0882 .0889 .0895 .0902.0908 | .0915
.9927.9926.9925 | .9924 .9923 .9922.9921
.0952.0958 .0964.0970.0976.0982.0988
.9917 .9916 .9915.9914.9912.9911.9910
.1012.1018 | .1023.1029
.1035 . 1041 .1046 .1052
.9908 .9907 .9906.9905 | .9904 .9903.9902.9901.9900 .9899
.9919 .9918
009 .1000 .1006
•
.0421.0434 .0446
.9981
.0492.0503 | .0513.0524.0534.0544
9977.9976.9975.9974.9973
0554
.9972 .9971
•
.9951
.0801
.9941
9940
•
.0836 0842.0849 .0856 .0863
.9935 9934.9933.9932.9931
.0869
.9930
0921
.0927
.0933
.9920
0994
.9909
.010
.1057
.9898
*See preface for notes on Table 2.
HYDRAULIC TABLES
15
Table 2.*-Depths, D, of equal energy for rectangular cross-
sections expressed as percentage, x, of energy head, H.-Con.
(1=discharge per foot of width)
If x=tabulated value, D=xH.

Q12
2gH.3
.000 .001
.002
.003 .004 .005
.006
.007
4
008
.009
.01
.106 .111 .117
.122 .127
.131
.136 .141
.990
.145
.989
988
.987
.150
.986
.984
.983
.982 .981
.980
.02
.154
.158
.162
.166
.170
.174
•
.178
.979 .978
.182 .185
.977 .976
.189
.975
.974
.973
.971 .970
.969
.03
.193
.196
.200 .204
.207
.211
.214
.217
.968
.221
.967
.966
.224
.965
.963
.962
.961
.960
.959
.957
.04
.228
.231
.234
.237
241
.244
.247
.956
.250
.254
.955
954
.953
.257
.951
.950
.949
.948
.946
.945
.05
.260
.263
.266
.269
.272
. 276
.279
.944
.282 .285
.943
.941 .940
.288
.939
.937 .936
.935
.933
.932
.06
.291
.294 .297 .300
.303
.306
.309
.931
.312
.929
.928 .927
.315
.318
.925 .924
.922
.921
.920
.918
.07
.321
.324
.327
.917
·
.330 .333
915 .914 .912
.336 .339
.342
.345
•
.348
.911
.909 .908
.906
.905
.903
.08
.351 .354 .357 .360
.363
.366
.369
.902 .900
.372
.375
.898
.378
.897
.895
.894 .892
.890
.889
.887
.09
.381 .385
.388 .391
.394
.885 .883 .882 .880
.397 .400
.403
.406
.409
.878
•
876 .874
.873
.871
.869
.10
.413 .416 .419
.422
.425
.867
.429 .432 .435
.865 .863
.439
.442
.861
.859
.857 .855
.853
.851
.849
.11
.445
.449
.452
.456
.459
.463
.466
.846 .844 .842
.470
473
.840
•
.477
.837
.835
.833 .830
.828
.825
.12
.481 .484 .488
.492
.13
.823 .820
.521 .525 .530
.794 .790 .787
.817 .815
.496 .500 .504
.812 .809 .806
.508
.512
.517
.803 .800
.797
.535
.783
.539 .544 .549 .555
.779 .775 .771
.560
.566
.767 .763
.758
.14
.572 .578 .585 .592
.753 .748 .742 .736
.600 .609 .619
.632
.654
34 at
•
729 .721 .712
.700
.679
.14815
*See preface for notes on Table 2.
16
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

D₁
sections, given by the formula D2= +
2
2v₁²D₁, D₁²
+
g
4
Depth
before
D₁ = Velocity before the jump
the jump
=D1
ཅ ། 。 །
7
89
10
11
12
13
14
0.1 .35
.43
.50
.58
.66
.74
.82
.90
.98
1.06
0.2
.47
.58
.69
.80
.91
1.02
1. 13
1. 24
1.35
1.46
0.3 .55
.68
.82
.95
1.09
1. 22
1.36
1.50
1.63
1.77
0.4
.61
.77
.92
1.08
1. 23
1.39
1.55
1.70
1.86
2.02
0.5
.67 .84
1.01
1. 18
1.36
1.53
1.71
1.88
2.06
2. 23
0.6
.71
.90
1.09
1. 27
1.46
1.66
1.85
2.04
2. 23
2.42
0.7
.75
.95
1. 15
1.36
1.56
1.77
1.97
2.18
2.38
2.59
0.8
.79
1.00
1. 21
1.43
1.65
1.87
2.09
2.31
2. 53
2.75
0.9
1.04
1.27
1.50
1.73
1.96
2. 19
2.42
2.66
2.89
1,0
1.08
1.32
1.56
1.80
2. 04
2. 29
2. 53
2.78
3.03
1.1
1.12
1.37
1. 62
1.87
2.12
2.38
2.63
2.89
3. 15
1.2
1. 15
1.41
1.67
1.93
2.20
2.46
2.73
3.00
3. 27
1.3
1.45 1.72
1.99
2. 27
2.54
2.82
3. 10
3.38
1.4
1.48 1.76 2.05
2.33
2.62
2.91
3. 20
3.49
1.5
1.52 1.81
2.10
2.40
2.69
2.99
3. 29
.3.59
1.6
1.55
1.85
2. 15
2.46
2.76
3.07
3.38
3.69
1.7
1.89
2.20
2.51
2.83
3. 14
3.46
3.78
1.8
1.93
2. 25
2.57
2.89
3. 21
3.54
3.87
1.9
1.96
2.29
2.62
2.95
3. 28
3.62
3.96
2.0
2.00
2.33
2.67
3. 01
3.35
3.69
4.04
2.1
2. 37
2.72
3.07
3. 42
3.77
4. 12
2.2
2.41
2.76
3. 12
3.48
3.84
4. 19
2.3
2. 45
2.81
3. 17
3.54
3.90
4. 27
2.4
2. 48
2.85
3. 22
3.60
3. 97
4.34
2.5
2.52
2.89
3.27
3.65
4.03
4. 41
2.6
2.55
2.93
3.32
3.71
4. 09
4. 48
2.7
2.97
3.37
3.76
4. 15
4. 54
2.8
3. 01
3. 41
3.81
4. 21
4. 61
2.9
3.04
3.45
3.86
4. 26
4.67
3.0
3.08
3.49
3.90
4.31
4.73
3.1
3. 11
3. 53
3.95
4.37
4.79
3.2
3. 14
3.57
3.99
4.42
4.85
3.3
3.61
4.04
4. 47
4.91
3.4
3.65
4.08
4.52
4.96
8.5
3.68
4. 12
4.57
5.01
8.6
3.72
4. 16
4.61
5. 07
8.7
3.75
4. 20
4.66
5. 12
3.8
3.79
4. 24
4.70
5. 17
3.9
4. 28
4.75
5. 22
4.0
T
4.32
4.79
5.27
4.1
4.35
4.83
5. 31
4. 2
4.39
4.87
5.36
4.3
4. 43
4.91
5. 41
4.4
4.46
4.95
5.45
4.5
4.50
4.99
5.50
4.6
5. 03
5.54
4.7
5.07
5.58
4.8
5. 11
5.62
4.9
5. 14
5.66
5.0
5.70
5. 18
HYDRAULIC TABLES
17
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂=
D₁ 2v₁³D₁ D₁²
+
2 V g
+
Con.
4

Depth
before
the jump
v₁=Velocity before the jump
=D1
15
16
17
18
19
20 21
22
23
24
0.1
1. 13
1. 21
1.29
1.37
1.45
1.53
1.61
1.69
1.76
1.84
0.2
1.58
1.69
1.80
1.91
2.02
2. 13
2. 24
2.36
2.47
2.58
0.3
1.90
2.04
2. 18
2.31
2.45
2.59
2.72
2.86
3.00
3. 13
0.4
2. 17
2.33
2.49
2.65
2.80
2.96
3. 12
3.28
3.43
3.59
0.5
2. 41
2.58
2.76
2.93
3. 11
3.29
3.46
3.64
3.81
3.99
0.6
2. 61
2.81
3.00
3. 19
3.38
3.57
3.77
3.96
4.15
4.35
0.7
2.80
3. 01
3. 21
3.42
3.63
3.84
4. 05
4. 25
4. 46
4.67
0.8
2.97
3. 19
3.41
3.63
3.86 4.08
4.30
4. 52
4.75
4. 97
0.9
3. 13
3.36
3.60
3.83
4.07
4.30
4. 54
4.77
5. 01
5. 25
1.0
3. 27
3.52
3.77
4. 02
4. 26
4.51
4.76
5.01
5. 26
5. 51
1.1
3. 41
3.67
3.93
4. 19
4.45
4. 71
4. 97
5.23
5. 49
5.75
1.2
3. 54
3.81
4.08
4.35
4.63
4.90
5. 17
5.44
5.71
5.98
1.3
3.66
3.95
4. 23
4. 51
4.79
5. 07
5.36
5.64
5.92
6. 21
1.4
3.78
4.07
4.36
4.66
4.95
5. 24
5. 54
5.83
6.12
6. 42
1,5
3.89
4. 19
4.50
4.80
5.10
5.40
5.71
6.01
6.31
6. 62
1.6
4.00
4. 31
4. 62
4.93
5.25
5. 56
5.87
6.19
6.50
6.81
1.7
4.10
4. 42
4.74
5.06
5.39
5.71
6.03
6.35
..6.68
7.00
1.8
4. 20
4. 53
4. 86
5.19
5.52
5.85
6. 18
6. 52
6.85
7. 18
1.9
4. 29
4.63
4.97
5.31
5. 65
5.99
6.33
6.67
7.01
7.35
2.0
4.38
4.73
5.08
5. 43
5.78
6. 12
6.47
6.82
7.17
7.52
2.1
4.47
4.83
5. 18
5.54
5.90
6.25
6.61
6.97
7.33
7.69
2.2 4.56
4.92
5. 28
5.65
6. 01
6.38
6.75
7.11
7.48
7.85
2.3 4.64
5. 01
5.38
5.75
6. 13
6.50
6.87 7.25
7.62
8.00
2.4 4.72
5. 10
5. 48
5.86
6. 24
6.62
7.00
7.38
7.77
8. 15
2.5
4.80
5.18
5.57
5.96
6.35
6.73
7.12
7.51
7.90
8.30
2.6
4.87
5. 26
5.66
6.05
6.45
6.85
7.24
7.64
8.04
8.44
2.7
4.94
5. 34
5.75
6. 15
6. 55
6.96
7.36 7.77
8.17
8.58
2.8
5. 01
5. 42
5.83
6. 24
6. 65
7.06
7.47 7.89
8.30
8.71
2.9
5.08
5.50
5.91
6.33
6.75
7.17
7.59 8.00
8.42
8.84
3.0
5. 15
5.57
5.99
6. 42
6.84
7.27 7.69 8.12
8.55
8.97
3.1
5.22
5.64
6.07
6.50
6.94
7.37 7.80 8.23
8.67
9.10
3.2
5. 28
5.71
6. 15
6.59
7.03
7.46 7.90 8.34
8.78
9.23
3.3
5. 34
5.78
6. 23
6. 67
7.11
7.56
8.01 8.45
8.90
9.35
3.4
5.40
5.85
6.30
6.75
7.20
7.65
8.10
8.56
9. 01
9.47
3.5
5. 46
5.92
6.37
6.83
7.29
7.74
8.20
8.66
9. 12
9.58
3:6
5. 52
5.98
6. 44
6.91 7.37 7.83
8.30
8.76
9.23
9.70
3.7
5. 58
6. 04
6. 51
6.98 7.45 7.92
8.39
8.86
9.34
9.81
3.8
5. 64
6. 11
6.58
7.05
7.53
8.01 8.48
8.96
9.44
9.92
3.9
5. 69
6. 17
6.65
7.13 7.61
8.09
8.57
9.06
9.54
10.03
4.0
5.74
6. 23
6.71
7.20
7.69
8.17 8.66
9. 15
9.64
10. 14
4. 1
5.80
6. 29
6.78
7.27
7.76
4.2
5.85
6. 34
6.84
7.34
8.26
7.83 8.33 8.84 9.34
8.75
9.25
9.74
10. 24
9.84
10.34
4.3
5.90
6. 40
6.90
7.40
7.91
8.41
8.92 9.43
9.94
10.45
4.4
5.95
6.45
6.96 7.47
7.98
8.49 9.00 9.52
10.03
10.55
4.5
6.00
6.51
7.02 7.53
8.05
8.57
9.08 9.60
10. 12
10.64
4.6
6. 05
6.56
7.08 7.60
8. 12
8.64
9.17
9.69 10.21
10.74
4.7
6.09
6. 61
7.14
7.66
8. 19
8.72
9.24
9.77
10.30
10. 84
4.8
6. 14
6.67 7.19 7.72
8.25
8.79
9.32 9.86
10.39
10.93
4.9
6. 19
6.72 7.25 7.78
8.32
8.86
9.40
9.94
10.48
11.02
6.0
11.11
6.23
10. 57
6.77 7.30
9.47 10.02
7.84
8.93
8.39
18
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂=
D₁ 2v₁² D₁, D₁²
+
+
2
-Con.
g
4
Depth
before
v=Velocity before the jump

the jump
= Di
25
26
27
28
29
30
31
32
33
34
0.1
1.92
2.00
2.08
2.16
2.24
2.32
2.40
2.47
2. 55
2. 63
0.2
2.69
2.80
2.91
3.02
3. 14
3.25
3.36
3.47
3.58
3.69
0.3
3. 27
3.40
3. 54
3.68
3.81
3.95
4.09
4. 22
4.36
4. 50
0.4
3.75
3.91
4.06
4.22
4. 38
4.54
4.69
4.85
5. 01
5. 17
0.5
4. 17
4. 34
4.52
4.69
4.87
5.05
5. 22
5.40
5.57
5.75
0.8
4. 54
4. 73
4.92
5. 12
5.31
5.50
5.70
5.89
6.08
6. 27
0.7
4.88
5.09
5. 29
5.50
5.71
5.92
6. 13
6.34
6.54
6.75
0.8
5. 19
5.41
5. 64
5.86
6.08
6.30
6.53
6.75
6.97
7. 19
0.9
5. 48
5.72
5.95
6. 19
6. 43
6.66
6.90
7.13
7.37
7.61
1.0
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.74
7.99
1.1
6. 01
6. 27
6. 53
6.79
7.05
7.32
7.58
7.84
8.10
8.36
1.2
6. 26
6.53
6.80
7.07
7.35 7.62
7.89
8.16 8.44
8.71
1.3
6. 49
6.77
7.05
7.34
7.62
7.90
8.19
8.47
8.76
9.04
1.4
6.71
7.00
7.30 7.59
7.89
8.18
8.47
8.77 9.06
9.36
1.5
6.92
7.23 7.53
7.83
8.14
8.44
8.75
9.05
9.36
9.66
1.6 7.13
7.44 7.75
1.7 7.32 7.65 7.97
1,8 7.51 7.85 8.18
8.07
8.38
8.70
9.01 9.33
9.64
9.95
8.29 8.62
8.94
9.27 9.59
9.91
10. 24
8.51
8.84
9. 18
9.51 9.84
10.18
10.51
1.9
7.70
8.04 8.38
8.72
9.06
9.41
9.75
10.09
10.43
10.78
2.0
7.87
8.22
8.57
8.93
9.28
9.63
9.98
10.33
10.68
11.03
2.1
8.05
8.40
8.76
9.12 9.48
9.84
10. 20
10.56
10.92
11. 28
2.2
8. 21
8.58
8.95
9.32
9.68
10.05
10.42
10.79
11. 16
11.52
2.3
8.37
8.75
9. 13
9.50
9.88
10.25
10.63
11.01
11.38
11.76
2.4
8.53
8.92
9.30
9.68
10.07
10.45
10.84
11.22
11.61
11.99
2.5 8.69
9.08
9.47
9.86 10.25
10.64
11.04
11.43
11.82
12. 21
2.6
8.84
9.24
9.63 10.03 10.43
10.83
11. 23
11.63
12.03
12. 43
2.7
8.98
9.39
9.80❘ 10.20 10.61
11.02
11. 42
11.83
12. 24
12.65
2.8
9. 13
9.54
9.95
10.37
10.78
11.20
11.61
12.03
12. 44
12.86
2.9
9.27
9.69
10. 11
10.53
10.95
11.37
11.79
12.22
12.64
13.06
8.0
9.40
9.83
10.26
10.69
11. 12
11.54
11.97
12.40
12.83
13. 26
3.1 9.54
9.97
10. 41
10.84
11. 28
11.71
12. 15
12.59
13.02
13.46
3.2 9.67
10. 11
10.55
10.99
11. 44
11.88
12.32
12.76
13. 21
13.65
3.3
9.79
10.24
10.69
11. 14
11.59
12.04
12.49
12.94
13.39
13.84
3.4 9.92 10.38
10.83
11. 29
11.74
12.20
12.66
13. 11
13. 57
14.03
3.5
10.04 10.51
10.97
11.43
11.89
12.36
12.82
13.28
13.74
14. 21
3.6
10.17
10.63
11. 10
11.57
12.04
12. 51
12.98
13. 45
13.92
14.39
3.7
10. 28
10.76
11.23
11.71
12. 18
12.66
13. 13
13. 61
14.09
14.56
3.8
10.40
10.88 11.36
11.84
12. 33
12.81
13. 29
13.77
14.25
14. 74
3.9 10.52
11.00 11.49
11.98
12. 46
12.95
13.44
13.93
14.42
14.91
4.0 10.63
11.12 11.61
12.11
12.60
13. 10
13.59
14.09
14.58
15.08
4.1
10.74
11.24 11.74
12. 24
12.74
13. 24
13.74
14. 24
14.74
15. 24
4. 2
10.85
11.35 11.86
12.36
12.87
13.38
13.88
14.39
14.90
15.40
4.3
10.96 11.47 11.98
12.49
13.00
13.51
14.02
14. 54
15.05
15. 56
4.4
11.06
11.58
12.09
12. 61
13. 13
13.65
14. 16
14.68
15.20
15.72
4. 5
11. 17
11.69
12. 21
12.73
13. 26
13. 78
14.30
14.83
15. 35
15.88
4.6
11. 27
11.80
12. 32
12.85
13.38
13. 91
14. 44
14.97
15.50
16.03
4.7
11.37
11.90
12. 44
12.97
13.50
14.04
14. 57
15. 11
15.65
16. 18
4.8
11. 47
12.01
12.55
13.09
13.63
14. 17
14.71
15.25
15.79
16.33
4.9
11.57
12.11
12.65
13. 20
13.75
14.29
14.84 15.38
15.93
16. 48
5.0
16.62
11.66
16.07
12. 21
14.97 15.52
12.76 13. 31
14. 41
13.86
HYDRAULIC TABLES
19
sections, given by the formula D₂= ++
Depth
before
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

D₁
2
V₁=Velocity before the jump
2v₁₂2D₁, D₁²
Di
+
-Con.
g
4

the jump
Di
35
36
37
38
39
40
41
42
43
44
0.1
2.71
2.79
2.87
2.95
3.03
3.11
3. 18
3. 26
3. 34
3.42
0.2
3.81
3.92
4. 03
4. 14
4. 25
4.36
4. 47
4. 59
4.70
4.81
0.3
4. 63
4.77
4.91
5.04
5. 18
5.32
5. 45
5. 59
5.73
5.86
0.4
5.32
5.48
5.64
5.80
5.95
6.11
6. 27
6.43
6. 59
6.74
0.5
5.93
6. 10
6. 28
6. 45
6. 63
6.81
6.98
7.16
7.34
7.51
esss
6.47
6.66
6.85
7.05
7. 24
7.43
7.63
7.82
8.01
8.20
6.96
7.17 7.38
7.59
7.79
8.00
8. 21
8.42
8.63
8.84
7.42
7.64 7.86
8.09
8.31
8.53
8.75
8.98
9.20
9.42
7.84
8.08
8.32 8.55
8.79
9.02
9.26
9.50
9.73
9.97.
8. 24
8.49
8.74
8.99
9. 24
9.49
9.74
9.99
10. 23
10.48
1.1 8.62
8.88
9. 14
9.40
9.67
9.93
10. 19
10.45
10.71
10.97
1.2 8.98
9.25
9.53
9.80
10.07
10.34
10.62
10.89
11. 16
11.44
1.3 9.32 9.61
9.89
10.17
10. 46
10.74
11.03
11. 31
11.59
11.88
1.4
9.65 9.95
10. 24
10.53
10.83
11. 12
11.42
11.71
12. 01
12.30
1. 5
9.97 10.27
10.58
10.88
11. 18
11.49
11. 79
12. 10
12.40
12.71
1.6
10.27
10.58
10.90
11. 21
11.53
11.84
12. 16
12.47
12.79
13. 10
1.7
10.56
10.89
11. 21
11.53
11.86
12. 18
12. 51
12.83
13. 16
13.48
1.8
10. 84
11. 18
11.51
11.85
12. 18
12. 51
12.85
13. 18
13. 51
13.85
1.9
11. 12
11.46
11.80
12. 15
12.49
12.83
13. 18
13. 52
13.86
14. 20
2.0
11.38
11.74 12.09
12.44
12.79
13. 14
13.49
13. 85
14. 20
14.55
2.1
11.64
12.00 12. 36
12.72
13.08
13. 44
13.80
14. 16
14. 53
14. 89
2.2
11.89
12.26
12.63
13.00
13. 37
13. 74
14. 11
14. 47
14. 84
15. 21
2.3
12. 14
12.51
12.89
13. 27
13.64
14.02
14.40
14. 78
15. 15
15.53
2.4
12.37
12.76
13. 14
13.53
13.91
14.30
14. 68
15. 07
15.46
15.84
2.5
12. 61
13.00
13.39
13.79
14. 18
14. 57
14.96
15.36
15.75
16. 14
2.6 12.83
13. 23
13. 63
14.04
14. 44
14. 84
15. 24
15. 64
16.04
16. 44
2.7
13.06
13. 46
13.87
14. 28
14.69
15. 10
15.50
15. 91
16.32
16.73
2.8
13. 27
13.69
14. 10
14. 52
14.93
15. 35
15.77
16. 18
16.60
17.01
2.9
13.48
13.91
14.33
14.75
15. 18
15.60
16.02
16. 45
16.87
17.29
3.0
13.69
14. 12
14. 55
14.98
15. 41
15.84
16. 27
16.70
17. 13
17.56
3.1
13.90
14.33
14.77
15. 21
15. 64
16.08
16. 52
16.96
17.39
17.83
3.2
14. 10
14.54
14.98
15.43
15.87
16. 32
16.76
17. 20
17.65
18.09
3.3
14. 29
14.74
15. 19
15. 64
16.09
16.55
17.00
17.45
17.90
18.35
3.4
14. 48
14.94
15.40
15.86
16. 31
16.77
17.23
17.69
18. 15
18. 60
3.5
14. 67
15. 14
15.60
16.06
16.53
16.99
17.46
17.92
18.39
18.85
3.6
14.86
15. 33
15.80
16. 27
16.74
17. 21
17.68
18. 15
18. 63
19. 10
3.7
15.04
15.52
15.99
16.47
16.95
17.43
17.90
18.38
18.86
19.34
3.8
15. 22
15.70
16. 19
16.67
17. 15
17.64
18. 12
18. 61
19.09
19.57
3.9
15.40
15.89
16.38
16.87
17.36
17.85
18.34
18.83
19. 32
19.81
4. 0
15.57
16.07
16. 56
17.06
17.55
18.05
18.55
19.04
19.54
20.04
4. 1
15.74
16. 24
16.75 17.25
17.75
18.25
18.75
19. 26
19.76
20.26
4.2
15. 91
16. 42
16.93 17.43
17.94
18.45
18.96
19.47
19.98
20.48
4.3
16.08
16.59
17. 10 17.62
18. 13
18.65
19. 16
19.68
20. 19
20.70
4. 4
16 24
16.76
17.28 17.80
18.32
18. 84
19.36
19.88
20.40
20.92
4. 5
16.40
16.93
17.45 17.98
18.50
19.03
19.56
20.08
20. 61
21. 13
4.8
16. 56
17.09
17.62 18. 15
18. 69
19. 22
19.75
20.28
20.81
21.35
4.7
16.72
17. 25
17.79
18.33
18.87
19. 40
19.94
20.48
21.02
21.55
4.8
16.87
17.41
17.96
18.50
19.04
19.59
20. 13
20.67
21. 22
21.76
4.9
17.03
17.57 18. 12
18.67
19. 22
19.77
20.32
20.86
21.41
21.96
5.0
22.16
17. 18
21.61
17.73 18. 28 18.84
19.94 20.50 21.05
19.39
20
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
++
2
Di 2v₁2D1, D₁²
+
-Con.
g
4
Depth
before
v₁=Velocity before the jump

the jump
= D₁
45
46
47
48
49
50
52
54
56
58
0.1
3.50
3.58
3.66
3.74
3.81
3.89
4.05
4. 21
4. 37
4.52
0.2
4.92
5.03
5. 14
5. 25
5.37
5. 48
5.70
5.92
6. 15
6.37
0.3
6.00
6. 14
6. 27
6. 41
6. 55
6.68
6.95
7.23
7.50
7.77
0.4 6.90
7.06
7. 22
7.37
7.53
7.69
8.00
8.32
8. 64
8.95
0.5
7.69
7.86
8.04
8. 22
8.39
8.57
8.92
9.27
9.63
9.98
0.6
8.40
8.59
8.78
8.98
9.17
9.36
9.75
10. 13
10.52
10.91
0.7
9.05
9.25
9.46
9.67
9.88
10.09
10.50
10.92
11.34
11.76
0.8
9.65
9.87
10.09
10.31
10.54
10.76
11. 21
11.65
12.10
12.54
0.9
10. 21
10. 44
10.68
10.91
11. 15
11.39
11.86
12. 33
12.81
13.28
1.0
10. 73
10.98
11. 23
11.48
11.73
11.98
12.48 |
12.98
13.47
13.97
1. 1
11. 23
11.49
11.76
12.02
12.28
12.54
13.06
13.58
14. 11
14.63
1.2
11.71
11.98
12. 25
12. 53
12.80
13.07
13.62
14. 16
14. 71
15. 26
1.3
12. 16
12.45
12.73
13. 01
13.30
13.58
14. 15
14.72
15. 29
15.85
1.4
12.60
12.89
13. 19
13.48
13.77
14.07
14. 66
15. 25
15.84
16.43
1,5
13. 01
13.32
13.62 | 13.93
14. 23
14.54
15. 15
15.76
16.37
16.98
1.6
13.42
13.73
14.05
14.36
14.68
14.99
15. 62
16. 25
16.88
17. 51
1.7
13. 81
14. 13
14.46
14.78
15. 10
15. 43
16.08
16.73
17.38
18.03
1.8
14. 18
14.52
14.85
15. 18
15. 52
15.85
16.52 17.19 17.86
18.53
1.9
14. 55
14.89
15. 23
15. 58
15.92
16. 26
16.95
17.64
18.32
19.01
2.0
14.90
15.25
15. 61
15.96
16. 31
16.66
17.37 18.07
18.78
19.48
2. 1
15. 25
15.61
15.97
16.33
16.69
17.05
17.77
18.49
19. 21
19.94
2.2
15. 58
15.95
16. 32
16.69
17.06
17.43
18. 17
18.90
19.64
20.38
2.3
15.91
16. 28
16. 66
17.04
17.42
17.79
18.55
19.30
20.06
20.82
2.4
16. 23
16. 61
17.00
17.38
17.77
18. 15
18.92
19.70
20.47
21. 24
2.5
16.54
16.93
17.32
17.72
18. 11
18.50
19.29
20.08
20.87
21.65
2.6
16.84
17.24
17.64
18.04 18.45
18.85
19. 65
20.45
21.26
22.06
2.7
17. 14
17.55
17.96
18.37
18.77
19. 18
20.00
20.82
21.64
22. 45
2.8
17.43
17.85
18. 26
18.68
19.10
19.51
20.34
21. 18
22.01
22.84
2.9
17.72
18. 14
18.56
18.99
19. 41
19.83
20.68
21.53
22.38
23.22
3. 0
17.99
18.43
18.86
19.29
19.72
20.15
21.01
21.87
22.73
23.60
3. 1
18.27
18. 71
19. 14
19.58
20.02
20. 46
21. 33
22. 21
23.09
23.96
3.2
18.54
18.98
19.43
19.87
20.32
20.76
21.65
22.54
23.43
24.32
3.3
18.80
19. 25
19. 71
20. 16
20. 61
21.06
21.96
22.87
23.77
24.68
3.4
19.06
19.52
19.98
20.44
20.90
21.35
22. 27
23. 19
24. 11
25.02
3.5
19.32
19.78
20. 25
20.71
21. 18
21.64
22.57
23.50
24.43
25.37
3.6
19. 57
20.04
20.51
20.98
21.45
21.93
22.87
23.81
24.76
25.70
3.7
19.82
20. 29
20.77
21. 25
21.73
22. 21
23. 16
24. 12
25.08
26.03
8.8
20.06
20.54
21.03
21.51
22.00
22.48
23. 45
24.42
25.39
26.36
3.9
20.30
20.79
21.28
21.77
22. 26
22.75
23.73
24.72
25.70
26.68
4. 0
20.53 21.03
21. 53
22.02
22.52
23.02
24.01
25. 01
26.00
27.00
4. 1
20.77
21. 27
21.77
22.27
22.78
23. 28
24. 29
25.29
26.30 27.31
4.2
20.99
21.50
22. 01
22.52
23.03
23.54
24.56
25.58
26.60
27.62
4.3 21.22 21.73
22. 25
22.76
23. 28
23.80
24.83
25.86
26.89
27.92
4.4 21.44 21.96
22.48
23.00
23.53
24.05
25.09
26. 13
27. 18
28. 22
4.5 21.66 22.19
22.71
23. 24
23.77
24.30 | 25.35
26.40
27.46
28.51
4.6 21.88 22.41
22.94
23.48
24.01
24.54 25.61
26.67 27.74
28.81
4.7 22.09 22.63
4.8 22.30 22.85
23. 17
23.71
24. 25
24. 78
25.86
26.94 28.02
29.09
23.39
23.93
24.48
25.02
26. 11
27. 20
28.29 29.38
4.9
22.51
23.06
23.61
24. 16
24.71
25.26
26.36
27.46
28.56
29.66
5.0
28.83 29.94
22.72
27.72
23. 27
26.60
23.83
24.94 25.49
24.38
HYDRAULIC TABLES
21
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
DIX
2v₁2D₁ D₁2
+
g
-Con.
4
sections, given by the formula D₂=
2

Depth
before
v=Velocity before the jump
the jump
=D1
60 62
64
66
68
70
72
74
76
78
0.1
4. 68
4.84
5.00
5. 16
5. 31
5.47
5.63
5.79
5.94
6. 10
0.2
6. 59
6.82
7.04
7.26
7.49
7.71
7.93
8. 15
8.38
8.60
0.3
8.05
8.32
8.59
8.87
9. 14
9.41
9.69
9.96
10.23
10. 51
0.4
9.27
9.58
9.90
10. 21
10.53
10.84
11. 16
11. 47
11.79
12. 10
0.5
10.33
10.68
11.04
11.39
11.74
12.10
12. 45
12.80
13. 15
13.51
0.6
11. 29
11.68
12.07
12.45
12.84
13. 22
13. 61
14.00
14. 38
14. 77
0.7
12.17
12. 59
13.01
13. 42
13.84
14. 26
14. 68
15.09
15. 51
15.93
0.8
12.99
13. 43
13. 88
14.33
14.77
15. 22
15. 66
16. 11
16. 56
17.00
0.9 13.75
14. 22
14.70
15. 17
15.64
16. 12
16.59
17.06
17.54
18.01
1.0
14.47
14.97
15. 47
15.97
16. 47
16.96
17. 46
17.96
18.46
18.96
1.1
15. 15
15.68
16. 20
16.72
17.24
17.77
18. 29
18.81
19. 34
19.86
1.2
15.80
16.35
16. 89
17.44
17.99
18.53
19.08
19. 62
20. 17
20.72
1.3 16.42
16.99
17.56
18. 13
18.70
19. 26
19.83
20.40
20.97
21. 54
1.4 17.02
17.61
18. 20
18.79
19.38
19.97
20.56
21. 15
21.74
22.33
1.5 17.59
18. 20
18. 81
19.42
20.03
20.64
21.25
21.86
22.47
23.08
1.6
18. 14
18.77
19.40
20.03
20.66
21.30
21.93
22, 56
23. 19
23.82
1.7
18.68
19.33 19.98
20.63
21.28
21.93
22.58
23. 23❘ 23.88
24. 53
1,8
19. 19
19.86 20.53
21. 20
21.87
22.54
23. 21
23.87
24.54
25. 21
1.9
19.70
20. 38
21.07
21.76
22.44
23. 13
23.82
24.50
25. 19
25.88
2.0
20. 18
20.89
21.59
22.30
23.00
23.71
24. 41
25.12
25.82
26. 53
2.1
20. 66
21.38
22.10
22.82
23.55
24. 27
24.99
25.71
26. 44
27. 16
2.2
21. 12
21.86
22.60
23. 34
24.08
24.82
25. 55
26. 29
27.03
27.77
2.3
21.57
22.33
23.08
23.84
24. 59
25. 35
26.10
26.86
27.62
28.37
2.4
22.01 22.78
23.55
24.33
25. 10
25.87
26.64 27.41
28. 19
28.96
2.5
22.44 | 23. 23
24.02
24.80
25.59
26.38
27.17
27.95
28.74
29.53
2.6
22.86
23. 66
24. 47
25. 27
26. 07
26.88
27.68
28.48
29. 29
30.09
2.7
23. 27 |
24. 09
24.91
25.73
26. 55
27.37
28. 18
29.00
29.82
30. 64
2.8
23. 68
24. 51
25.34
26. 18
27.01
27.84
28. 68
29. 51
30.34
31. 18
2.9
24. 07
24.92
25.77
26. 62
27.46
28. 31
29.16
30.01
30.01
30. 86
31.71
3.0
24. 46
25. 32
26. 18
27.05
27.91
28.77
29.64
30.50
31.36
32. 22
3.1
24.84
25.72
26.59
27.47
28.35 29.22
30.10
30.98
31.86
32. 73
3.2
25. 21
26. 10
26.99
27.89
28.78 29.67
30.56
31. 45|
32. 34
33.23
3.3
25.58
26. 49
27.39
28. 29
29.20 30.10
31.01
31.91
32.82
33.72
3.4
25.94
26.86
27.78
28.70
29.61 30.53 31.45
32.37
33. 29
34. 21
3.5 26.30
27. 23
28. 16
29.09
30.02
30.95 31.89
32.82
33.75
34.68
3.6
26. 65
27.59
28.54
29. 48
30.43
31.37 32.32
33.26
34. 21
35. 15
3.7
26.99
27.95
28.91
29.86
30.82
31.78
32.74
33.70
34. 65
35. 61
3.8 27.33
28.30
29. 27
30.24
31. 21
32. 18
33. 15
34. 12
35.09
36.07
3.9 27.66
28. 65
29.63
30.61
31.60
32. 58
33.56
34.55 35.53
36. 51
4.0
27.99
28.99 29.98
30.98
31.97
32.97
33.97
34.96 | 35.96
36.95
4.1
28.32
29. 32 | 30.33
31.34
32.35
33.36
34. 36
35. 37 | 36.38
37.39
4.2
28. 64
29.66 | 30.68
31.70
32.72
33.74
34.76
35.78 | 36.80
37.82
4.3
28.95
29.98
31. 02
32.05
33.08
34. 11
35. 14
36. 18
37. 21
38. 24
4.4
29.26
30. 31
31.35
32.39
33. 44
34.48
35.53
36. 57
37.62
38.66
4.5
29. 57
30.63
31.68
32.74
33.79
34.85
35.91
36.96
38.02
39.07
4.6
29.87
30.94
32. 01
33.08
34. 14
35. 21
36.28
37. 35
38. 41
39.48
4.7
30. 17
31. 25
32. 33 | 33. 41
34. 49
35. 57
36.65
37.73 38.81
39.89
4.8
30.47
31. 56
32. 65
33.74
34.83
35.92
37.01
38. 10 | 39. 19
40.28
4.9
30.76
31.86❘ 32.96
34. 07
35. 17
36. 27
37.37
38. 47 | 39. 58
40.68
5.0
41. 07
31. 05 | 32. 16 | 33. 28 | 34. 39
38.84 39.95
35.50
37.73
36.61
22
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂=
Depth
before
++
Di 2v₁2D₁, D₁2
+
-Con.
g
4

v1=Velocity before the jump
the jump
=D1
80
30 82
84
86
88 90 92 91
94
96
888
98
0.1
6.26
6.42
6.58
6.73
6.89
0.2
8.82
9.05
9.27
9.49
9.72
9.94
0.3
10.78
11.05
11.33
11.60
11.87
12.15
7.05 7.21
10.16
12.42
7.36 7.52
7.68
10.38 10.61
10.83
12.69
12.96
13.24
0.4
12. 42
12.74
13.05
13.37
13.68
14.00 14.31
14.63 14.94
15.26
0.5
13.86
14.21 14.56
14.92
15.27
15.62
15.97
16.33 16.68
17.03
0.6
15.16
15.54 15.93
16.31
16.70
17.09
17.47
17.86 | 18.25
18.63
0.7 16.34 16.76 17.18
17.60
18.01
18.43
18.85
19.27 19.68
20.10
0.8 17.45 17.89
18.34
18.79
19.23
19.68
20.12
20. 57
21.02
21.46
0.9 18.48 18.95 19.43
1.0 19.46 19.96 20.45
19.90
20.37
20.85
21.32
21. 79
22.27
22.74
20.95
21.45 21.95
22.45
22.95
23.45
23.94
1.1 20.38 | 20.90 | 21.43
21.95
22.47 23.00
23.52 24.04
24.04
24.57
25.09
1.2
21.26 21.81
22.36
22.90 23.45
23.99 24.54 25.09
25.63
26.18
1.3
22.11 22.68 23. 24
23.81
24.38
24.95
25.52 26.09
26.65
27.22
1.4
22.92❘ 23.50 | 24.09
24.68
25. 27
25.86
26.45 27.04
27.63
28.22
1.5
23.69 24.31 24.92
25.53
26. 14
26.75
27.36
27.97
28.58
29.19
1.6
24. 45
25.08 25.71
26.34
26.97
27.60
28.23 28.86
29.49
30.12
1.7
25.18
25.83
26.48 27.13
27.78
28.43 29.08 29.73
30.38
31.03
1.8 25.88
26.55 27.22
27.89
28.56
29.23 29.89 30.56 31.23
31.90
1.9 26.57 27.25 27.94
28.63
29.31
30.00 30.69
31.38 32.06
32.75
2.0
27.23 27.94 28.64 29.35
30.05
30.76
31.46
32.17
32.87
33.58
2.1
27.88 28.60 29.32
30.05
30.77
31.49
32. 21
32.94
33.66
34.38
2.2
28.51 29.25
29.99
30.73
31.47
32. 21
32.95
33.69
34.43
35. 17
2.3
29.13 29.88
30.64
31.39
32.15
32.91
33.66
34.42
35. 17
35.93
2.4 29.73
30.50
31.27 32.05
32.82
33.59
34.36
35. 13
35.91
36.68
2.5
30.32
31.11
31.89 32.68
33.47
34.26
35.05
35.83
36.62
37.41
2.6
30.89
31.70
32.50 33.31 34.11
34.91
35.72 36.52
37.32
38.13
2.7
31.46
32. 28
33.10 33.92 34.73
35.55 36.37 37.19
38.01
38.83
2.8
32.01
32.85
33.68
34.51
35.35
36.18 37.02 37.85
38.68
39.52
2.9
32.56 33.40
34. 25
35.10
35.95
36.80
37.65 38.50
39.34
40.19
3.0 33.09 33.95
34.81
35.68
36. 54
37.40
38.27 39.13 39.99
40.86
3.1
33.61 34.49 35.37 36.24
37.12
38.00
38.87 39.75 40.63
41.51
3.2
34.12 35.01 35.91
36.80
37.69
38.58
39.47
40.36 41.25
42.15
3.3
34.63 35.53
36.44 37.34
38.25
39. 15
40.06
40.97 41.87
42.78
3.4
35. 13
36.04 36.96 37.88
38.80
39.72
40.64
41.56
42.48
43.40
3.5
35.61
36.55 37.48 38.41
39.34
40.28
41. 21
42.14 43.07
44.00
3.6
36.10 37.04 37.99
38.93
39.88 40.82
41.77
42.71
43.66
44.60
3.7
36.57 37.53 38.49
39. 44
3.8
37.04 38.01
3.9 37.50 38.48
4.0 37.95 38.95
38.98
39.95
40.40 41.36 42.32
40.92
43.28
44. 24
45.20
41.89 42.86
43.84
44.81
45.78
4.1
38.40 39.41
4.2
38.84 39.86
39.46 40.45 41.43
39.94 40.94 41.94
40.42 41.42 42.43
40.88 41.90 42.92
42.42 43.40 44.38
45.37
46.35
42.93 43.93
44.93 45.92
46.92
43. 44
44. 45
45.46 | 46.47
47.48
43.94
44.97
45.99 47.01
48.03
4.3
39.28 40.31 41.34
42.37 43.41
44. 44
45. 47
46.51
47 54
48.57
4.4
39.71 40.75
41.80
42.84 43.89
44.93
45.98
47.02
48.07
49.11
4.5
40.13 41. 19
42. 24
43.30 44.36
45.41
46.47 47.53 48.58 49.64
4. 6
40.55
41.62
42.69
43.76
44.82
45.89 46.96
4.7 40.96
42.04
43. 12
44.20
45. 28
46.36 47.44
48.03 49.10
48.52 49.60
50.17
50.68
4.8
41.37
42. 47
43.56
44.65
45.74
46.83 47.92
49.01 50.11
51.20
4.9 41.78
42.88
43.98
45.09
46. 19
47.29 48.40
49.50 50.60
51.70
5.0 42.18
49.98 51.09 52.20
43.29
47.75 48.86
44. 41 45.52
46. 63
HYDRAULIC TABLES
23
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂
1+
D 2v₁2D₁, D₁2
+
-Con.
g
4
Depth
before
v₁=Velocity before the jump
the jump
=D₁
100
105
110
115
120 125 130 135 140 145 150
0.1
7.84
8. 23
8.63
9.02
9.41
9.81 10.20
10.60
10.99
11. 39
11.78
0.2
11. 05
11.61
12. 17
12. 73
13. 28
13. 84
14. 40
14.96
15. 52
16. 07
16. 63
0.3
13. 51
14. 19
14. 88
15. 56
16. 24
16.93
17. 61
18. 29
18.97
19. 66
20. 34
0.4
15. 57
16.36
17. 15
17.94 18. 73
19. 52
20. 31
21.09
21. 88
22. 67
23.46
0.5
17.38
18. 27
19. 15
20.03 20.91
21.79
22. 67
23. 55
24. 44
25. 32
26. 20
0.6
19. 02
19.98
20.95
21.92 22.88
23.85
24.81
25.78
26. 74
27.71| 28.68
0.7
20.52
21.56
22.60
23. 65 24. 69 25. 73
26.78
27.82
28. 86
29.90 30. 95
0.8
21.91
23.02
24. 14
25.25 26.37 27.48
28.60
29. 71
30.83
31.94 33.06
0.9
23. 21
24.39
25.58
26.76| 27.94 29. 13
30. 31|
31. 49|
32.67
33.86 35.04
1.0
24. 44
25. 69
26.94
28. 18 29.43 30.68
31.92
33. 17
34. 42
35.66 36. 91
1.1
25. 61
26.92
28. 23
29.53 30.84
32. 15
33. 46
34. 76
36.07
37.38 38.69
1.2
26.73
28.09
29. 46
30.82 32. 19
33. 55
34.92
36. 28
37.65
39. 02
40.38
1.3 27.79
29.21
30.63
32.06 33.48 34.90
36. 32
37.74
39. 16
40. 58
42. 01
1.4 28.81 30.29
31.76
33. 24
34.71
36. 19
37.66
39.14
40. 61
42.09 43.56
1,5
29.80 31.33
32.85
34. 38
35.91
37.43
38.96
40. 49
42.02
43.54 45.07
1.6
30. 75
32. 33
33.91
33.91
35. 48 37.06 38.64
40. 21
41. 79
43. 37
44.95 46.52
1.7
31.68
33. 30]
34.93
36.55 38. 1839. 80
41. 43
43.05
44. 68
46.30 47.93
1.8
32.57
34. 24
35.91
37.59 39.26 40.93
42.60
44. 28
45.95
47.62
49. 29
1.9
33.44
35. 16)
36.87
38.59 40.31 42.03
43.75
45. 47
47.18
48.90 50.62
2.0
34. 28
36.04|
37.81
39.57 41.33 43. 10
44. 86
46. 62
48. 38
50. 15
51.91
2.1 35.10
36.91
38.72
40.52 42. 33
44. 14
45, 94
47.75
49. 55
51. 36
53. 17
2.2
35.91
37.75
37.75
39. 60
41.45 43. 30
45.15
47.00
48.85
50.70
52. 55
54.39
2.3
36.69
38. 58
40.47
42. 36
44. 25
46. 14
48. 03
49.92 51. 81
53. 70
55. 59
2.4
37.45
39.38
41. 31
43. 24
45. 17
47. 11
49.04
50.97 52.90
54.83
56.76
9.5
38. 20
40. 17
42. 14
44. 11
46. 08
48.05
50.02
52.00 53. 97
53.97
55.94
57. 91
57.91
2.6
38.93
40.94
42.95
44.96 46.97 48.98 50.99 53.00
55. 01
57.02
59.03
2.7
39.65
41.70
43. 74
45.79 47.84 49.89 51.94 53.99 56. 03
58. 08
60. 13
2.8
40.35
42. 44
44. 52
46. 61 48. 69 50.78 52. 87 54.95 57.04
59. 12
61. 21
2.9
41. 04
43. 16
45. 29
47.41 49.53 51.65 53.78 55.90
58.02 60. 15|
62. 27
3.0
41. 72
43.88
46.04
48.20 50.35 52.51 54.67
56.83
58.99 61. 15
63. 31
3.1
42.39
44. 58
46. 77
48.97 51. 16
53.36
55. 55
57.75
59.94
62. 14
64.33
3.2
43.04 45. 27
47.50
49.73 51.96
54. 18
56. 41
58. 64
60. 87
63. 10
65.33
3.3
43.68
45. 94
48. 21
50.47 52.74 55.00
57.26
59.53
61. 79
64. 06
66.32
3.4
44. 31
46. 61
48.91
51. 21 53. 51
55.80
58. 10
60. 40
62.70
65.00
67. 29
3.5
44.94
47.27
49.60
51.93 54. 26
56. 59
58.93
61. 26
63. 59
65.92
68. 25
3.6
45. 55
47.91
50. 28
52.64 55.01
57.37
59.74
62. 10
64. 47
66. 83
69. 20
3.7
46. 15
48.55
50.95
53.35 55.74 58.14 60. 54
62.93
65. 33
67.73
70.13
3.8
46.75
49. 18
51. 61
54.04 56.47 58.90 61. 33
63. 75
66. 18
68. 61
71.04
3.9
47.34
49.80
52. 26
54.72 57.18 59.64 62. 10
64. 56
67.03
69. 49
71.95
4.0
47.92
50. 41
52.90
55.39 57.88
60.38
62.87
65.36
67.85
70.35
72. 84
4.1
48.49
51. 01
53. 53
56.06 58. 58
61. 10
63, 63
66.15
68. 67
71. 20
73.72
4.2
49.05
51. 60
54. 16
56.71 59. 26
61.82
64. 37
66.93
69. 48
72.03
74. 59
4.3
49.61
52. 19
54. 77
57.36 59.94
62.53| 65. 11|
67. 69
70.28
72.86 75.45
4.4
50.16
52.77
55. 38
58.00 60.61 63. 22
65. 84
68.45
71.07
73. 68
76.30
4. 5
50.70
53.34
55.98
58.63 61.27 63.91
66. 56
69. 20
71.85
74. 49
77. 13
4. 6
51. 23
53.91
56. 58
59. 25 61.92 64.60
67. 27
69.94
72. 62
75. 29
77.96
4.7
51.76
54. 47
57. 17
59.87 62. 57
65. 27
67.97
70.67
73. 38
76.08 78.78
4.8
52. 29
55.02
57.75
60.48 63.21 65.94 68. 67
71. 40
74. 13
76.86 79.59
4.9
52.81
55. 56
58. 32
61.08 63.84 66.60 69, 35
72. 11
74.87 77.63 80.39
5.0
75. 61| 78. 39| 81.18
53.32
72.82
56. 10
61.68| 64. 46| 67.25| 70.03
58.89
24
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁
:+
2
2 v₁² D₁
D₁2
+
Con.
g
4
Depth
before
V₁=Velocity before the jump

the jump
= Di
15
16
17
18
19
20
21
22
23
24
5.0
5.1
5.2
5.3
5.4
CIRKO TH
6, 23
6.77
7.30
7.84
8.39
8.93
9.47
10.02
10. 57
11. 11
6. 27
6.81
7.36
7.90
8. 45
9.00
9.55
10.10
10. 65
11.20
6.32
6.86 7.41
7.96
8.51
9.07
9.62
10. 18
10. 74
11. 29
6.36
6.91 7.46
8.02
8.58
9. 13
9.69
10.26
10.82
11.38
6. 40
6.96
7.51
8.07
8.64
9.20
9.77 10.33
10.90
11. 47
5.5
5.6
5.7
5.8
5.9
16 CO 2 ∞ →
6.44
7.00
7.57
8. 13
8.70
9.27
9.84
10. 41
10.98
11.55
6. 48
7.05
7.62
8. 19
8.76
9.33
9.91
10.48
11.06
11.64
6.52
7.09
7.67
8. 24
8.82
9.39
9.97
10.55
11. 14
11.72
6.56
7.14
7.71
8. 29
8.87
9.46
10.04
10.63
11. 21
11.80
6.60
7.18
7.76
8.35
8.93
9.52
10. 11
10.70
11.29
11.88
6.0
6.64
7.22
7.81
8.40
8.99
9.58
10. 17
10.77
11.37
11.96
6. 1
6.68
7.27
7.86
8.45
9.04
9.64
10. 24
10.84
11.44
12.04
6.2
6.72
7.31 7.90
8.50
9. 10
9.70
10.30
10.91
11.51
12. 12
6.3
6.75 7.35
7.95
8.55
9. 15
9.76
10.37 10.98
11.59
12. 20
6.4 6.79
7.39
7.99
8.60
9. 21
9.82
10.43 11.04
11.66
12.28
6.5
6. 83
7.43
8.04
8.65
9.26
9.87
10.49
11. 11
11.73
12.35
6.6
6.86
7.47
8.08
8.69 9.31
9.93
10.55
11. 18
11.80
12.43
6.7
6.90 7.51
8.12
8.74 9.36 9.99
10.61
11. 24
11.87
12.50
6.8
6.93
7.55
8. 17
8.79
9.41
10.04
10.67
11.31
11.94
12.57
6.9
6.96
7.58
8. 21
8.84
9.47
10. 10
10.73 11.37
12.01
12.65
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
→IRMO THE LOCH ∞ ↔
7.0 7.00
7.62
8.25
8.88
9.52
10. 15
10.79
11. 43
12.07
12.72
7.66
8. 29
8.93
9.56
10. 21
10.85
11.49
12. 14
12.79
7.70
8.33
8.97
9.61
10. 26
10.91
11. 56
12. 21
12.86
7.73
8.37 9.02
9.66
10. 31
10.96
11.62
12. 27
12.93
7.77
8.41
9.06
9.71
10.36
11.02
11. 68
12.34
13.00
7.80
8.45
9. 10
9.76
10. 41
11.07
11.74
12.40
13.06
7.84 8.49
9. 15
9.80
10. 47
11. 13
11. 79
12.46
13. 13
7.87
8.53
9. 19
9.85
10.52
11. 18
11.85
12.52
13. 20
7.91
8.579. 23
9.90 10.57
11. 24
11.91
12.59
13. 26
7.94
8.60
9.27
9.94
10.61
11. 29
11.97
12. 65
13. 33
8.0
7.97
8.64 9. 31
9.99
10.66
11. 34
12.02
12.71
13. 39
8.1
8.68 9.35
10.03 10.71
11.39
12.08
12.77
13.46
8.2
8.71 9.39
10.07
10.76
11.45
12. 14
12.83
13.52
8.3
8.75 9.43
10. 12
10.81
11.50
12. 19
12.89
13. 59
8.4
8.79 9.47
10. 16
10.85
11.55
12. 25
12.95
13. 65
8.5
8.82
9.51
10. 20
10.90
11.60
12.30
13.00
13. 71
8.6
8.86
9.55
10.25
10.95
11. 65
12.35
13. 06
13.77
8.7
8.89
9.59
10. 29
10.99
11.70
12. 41
13. 12
13. 83
8.8
8.92
9.62
10.33
11.04
11.75
12.46
13. 17
13.89
8.9
8.96 9.66
10.37
11.08
11.79
12.51
13. 23
13.95
9.0
8.99
9.70
10.41
11. 12
11. 84
12.56
13. 29
14. 01
9.1
9.73
10. 45
11. 17
11.89
12. 61
13. 34
14. 07
9.2
9.77
10.49
11. 21
11.94
12.66
13.40
14. 13
9.3
9.81
10.53
11. 25
11.98
12.72
13. 45
14. 19
9.4
9.84
10. 57
11.30
12.03 12.77
13.50
14. 24
9.5
9.88 10. 61
11. 34
12.08 12.81
13. 56
14.30
9.6
9.91
10.65
11.38
12. 12 | 12. 86
13. 61
14. 36
9.7
9.95 10.68
11. 42
12. 17
12.91
13. 66
14. 41
9.8
9.98 10.72
11.46
12. 21
12.96
13. 71
14.47
9.9
14.52
10.02 10.76
13.76
11. 51
13. 01
12. 26
HYDRAULIC TABLES
25
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁
2
+ √
2v₁²D₁, D₁²
+
-Con.
g
4
Depth
before
V₁=Velocity before the jump
the jump
=Di
25
26
27
28
29
30 31 3
32
3833
34
5.0
11.66
12. 21
12.76
13. 31
13.86
14. 41
14.97
15.52
16. 07
16. 62
5. 1
11.76
12.31
12.87
13.42
13.98
14. 54
15.09
15.65
16. 21
16.77
5.2
11.85
12.41
12.97
13.53
14.09
14. 66
15. 22
15. 78
16. 35
16.91
5.3
11.95
12. 51
13.08
13. 64
14. 21
14.78
15. 34
15.91
16.48
17.05
5.4
12.04
12.61
13. 18
13.75
14. 32
14.89
15.47
16.04
16. 61
17.19
5.5
12. 13
12.70
13. 28
13.85
14. 43
15.01
15.59
16. 17 | 16. 74
17.32
5.6
12. 22
12.80
13.38
13.96
14.54
15. 12
15. 71
16.29
16.87
17.46
5.7
12.30
12.89
13. 48
14.06
14. 65
15. 24
15.83
16. 41
17.00
17.59
5.8
12.39
12.98
13.57
14. 16
14. 76
15.35
15. 94
16.54
17. 13
17.72
5.9
12. 48
13. 07
13.67
14. 27
14.86
15. 46
16.06
16.66❘ 17. 26
17.86
6.0
12. 56
13. 16
13.76
14.36
14. 97
15. 57
16. 17
16.78
17.38
17.98
6. 1
12.65
13. 25
13.86
14. 46
15.07
15.68
16. 29
16.89
17.50
18. 11
6.2
12.73
13. 34
13.95
14. 56
15. 17
15. 78
16. 40
17.01
17.62
18. 24
6.3
12.81
13. 43
14.04
14.66
15. 27
15.89
16. 51
17. 13
17.74
18.36
6.4
12.89
13. 51
14. 13
14.75
15. 37
16.00
16. 62
17. 24
17.86
18. 49
8.5
12.97
13.60
14. 22
14.85
15. 47
16.10
16.73
17.35 | 17.98
18. 61
6.6
13.05
13.68
14. 31
14. 94
15. 57
16. 20
16. 83
17.47
18. 10
18.73
6.7
13. 13
13.76
14. 40
15.03
15. 67
16.30
16.94
17.58
18. 21
18.85
6.8
13. 21
13.85
14. 48
15. 12
15. 76
16. 40
17.04
17.69
18.33
18.97
6.9
13. 29
13.93
14.57
15. 21
15.86
16.50
17. 15
17.79
18. 44
19.09
7.0
13. 36
14.01
14. 65
15.30
15.95
16. 60
17.25
17.90
18.55
19. 20
7.1
13. 44
14.09
14.74
15. 39
16. 04
16.70
17.35
18. 01
18.66
19. 32
7.2
13. 51
14. 17
14.82
15. 48
16. 14
16.79
17.45
18. 11.
18.77
19.43
7.3
13. 59
14. 24
14.90
15. 57
16. 23
16.89
17.55
18. 22
18.88
19. 55
7.4
13.66
14. 32
14.99
15.65
16. 32
16.99
17. 65
18.32
18.99
19.66
7.5
13.73
14. 40
15.07
15.74
16. 41
17.08
17.75
18.42
19. 10
19.77
7.6
13.80
14. 47
15. 15
15.82
16. 50
17. 17
17.85
18.53
19. 20
19.88
7.7 13.87
14.55
15. 23
15.90
16. 58
•
17.26
17.94
18. 63
19.31
19.99
7.8 13.94 14.62
15. 31
15.99
16.67
17.35
18.04
18.73
19. 41
20.10
7.9
14.01
14.70
15. 38
16. 07
16. 76
17.45
18. 13
18.82❘ 19.52
20. 21
8.0
14.08
14.77
15. 46
16. 15
16.84
17.54
18. 23
18.92
19.62
20.31
8.1
14. 15
14.84
15.54
16. 23
16.93
17.62
18.32
19.02
19.72
20.42
8.2
14.22
14.91
15. 61
16.31
17.01
17.71
18. 41
19. 12
19.82
20.52
8.3
14.28
14.99
15.69
16. 39
17.09
17.80
18. 51
19. 21
19.92
20.63
8.4
14. 35
15.06
15.76
16. 47
17. 18
17.89
18.60
19. 31
20.02
20.73
8.5
14. 42
15. 13
15.84
16.55 17.26
17.97
18. 69
19.40
20. 12
20.83
8.6
14. 48
15. 19
15.91
16.62 17.34
18.06
18.78
19.49
20. 21
20.93
8.7 14. 55
15. 26
15. 98
16.70
17.42
18. 14
18.86
19.59
20.31
21.03
8.8
14.61
15. 33
16. 05
16. 78
17.50
18. 23
18.95
19. 68
20. 41
21. 13
8.9
14. 67
15.40
16. 12
16.85
17.58
18.31
19.04
19. 77❘ 20.50
21.23
9.0
14.74
15.47
16. 19
16.93
17.66
•
18.39
19.12
19.86 20.60
21.33
9.1 14.80
15. 53
16. 26
17.00
17.74
D
18.47
19. 21
19.95 20.69
21.43
9.2 14.86
15.60
16.33
17.07 17.81
18. 55
19.30
20.04❘ 20.78
21.53
9.3 14.92
15.66
16. 40
17.15 17.89
18.63
19.38
20.13 20.87
21.62
9.4
14.98
15.73
16.47
17.22 17.97
18.71
19.46
20. 21
20.97
21.72
9.5
15.04
15.79
16. 54
17.29
18.04
18.79
19.55
20.30
21.06
21.81
9.6 15. 10
15.85
16. 61
17.36
18. 12
18.87
19. 63
20.39
21.15
21.91
9.7
15. 16
15.92
16. 67
17.43
18. 19
18.95
19.71
20.47
21. 24
22.00
9.8 15. 22
15.98
16. 74
17.50
18.26
19.03
19.79
20.56
21.32
22.09
9.9 15. 28
16.04
16.81
17.57
18. 34
19. 10
19.87
20.64
21. 41
22. 18
563189°
3
·44-
26
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂=
Depth
before
D1
=
2
Velocity before the jump
V
D₁ 2v₁²D₁, D₁²
+
+
-Con.
g
4

the jump
= Di
35
36
37 7 38 39 40
41
42
43
44
5.0
17.18
17.73 18.28 18.84
19.39
19.94
20.50
21.05
21.61
22.16
5.1
17.33
17.88
18.44
19.00
19.56
20. 12
20.68
21. 24
21.80
22.36
5.2
17.47
18.04
18.60
19. 17
19.73
20.29
20.86
21.43
21.99
22.56
5.3
17.62
18.19 18.76
19.33
19.90 20.47 21.04
21.61 22.18
22.75
5.4 17.76 18.34
18.91
19.49
20.06
20.64
21.21
21.79
21.79 22.36
22.94
5.5
17.90 18.48
19.06
19. 64
20.22
20.80
21.39
21.39
21.97
21.97
22.55
23.13
5,6
18.04 18.63
19.21
19.80
20.38
20.97
21.56
22. 14
22.73
23.32
5.7
18. 18
18.77
19.36
19.95
20.54
21. 14
21.73
22.32
22.91
23.50
5.8
18.32 18.91
19.51
20. 11
20.70
21.30
21.89 22.49
23.09
23.68
5.9
18.46
19.06
19.66
20.26
20.86
21.46 | 22.06 | 22.66
23.26
23.87
6.0
18.59
19. 19
19.80
20.41
21.01
21.62 22.22 22.83 23.44
24.04
6. 1
18.72
19.33
19 94
20.55
21. 16
21.77
22.39
23.00 23.61
24.22
6.2
18.85
19.47
20.08
20.70
21.31
21.93
22.55
23.16 | 23.78
24.40
6.3
18.98
19.60
20.22
20.84
21.46
22.08 22.71
23.33 23.95
24.57
6.4
19. 11
19.74
20.36 20.99
21.61
22.24 22.86
23.49
24.12
24.74
6.5
6.6
6.7
6.8
6.9
10 6 1 ∞ *
19. 24
19.87
19.36
19.49
20.50
20.00 20.63 21.27
21.13 21.76
22.39
23.02
23. 65
24. 28
24.91
21.90
22. 54
23.17
23.81
24.45
25.08
20.13 20.77
21.41
22.05
22.69
23.33
23.97
24.61
25.25
19. 61
20.26
20.90
21.54
22.19
22.83
23.48
24.12
24.77
25.41
19.74
20.38
21.03 21.68
22.33
22.98
23.63
24, 28
24.93
25.58
7.0 19.86 20.51
21.16 21.82
22.47
23. 12
23.78
24.43 25.09
25.74
7.1 19.98 20.63
7.2
20.10
20.76
21.29
21.42 22.08
21.95
22.61
23.27
23.92 24.58 25.24
25.90
22.74 23.41
24.07
24.73
25.40
-26 06
7.3
20. 21
20.88 21.55
22. 21
22.88
23.55
24. 22
24.88
25.55
26. 22
7.4
20.33
21.00 21.67
22.34
23.01
23.69
24.35
25.03
25.70
26.38
7.5
20.45
21.12 21.80
22.47
23. 15
23.82
24.50
25. 18
25.86
26.53
7.6 20.56 21.24 21.92
22.60
23.28
23.96
24.64
25.32
26.01
26.69
7.7 20.67 21.36 22.04
22.73
23.41
24.10
24.78
25.47 26.15
26.84
7.8
20.79 21.47 22.16
22.85
23.54
24.23
24.92
25.61 26.30
26.99
7.9
20.90 21.59
22.28
22.98 23.67
24.36
25.06
25.75 26.45
27.14
8.0 21.01 21. 71
22.40
23.10
23.80
24.50
25. 19
25.89 26.59
27.29
8.1 21.12 21.82
22.52
23. 22
23.92 24.63
25.33❘
26.03 | 26.74
27.44
8.2 21.23 21.93 22.64
23.34
24.05
24.76
25.46
26. 17 26.88
27.59
8.3 21.34 22.05 22.75
8.4 21.44 22.16 22.87
23.46
24.18
24.89
25.60
26.31
27.02
27.73
23.58 24.30
25.01
25.73
26.45 27.16
27.88
8.5 21.55 22.27 22.98
8.6 21.65 22.38 23.10
8.7 21.76 22.48 23.21
8.8 21.86 22.59 23.32
8.9 21.97 22.70 23.43
9.0 22.07 22.81 23. 54
23.70
23.82
24.42
25. 14
25.86
26.58 | 27.30
28.02
24.54
25.27
25.99
26.72 27.44
28.16
23.94 24.66
25.39
26. 12
26.85 27.58
28.31
24.05
24.78
25. 52
26.25
26.98 27.71
28.45
24. 17
24.90
25.64
26.38 27.11 27.85
28.59
24. 28
9.1
22.17
22.91
23.65
24.40
9.2
22. 27
23.02
23.76
24.51
25.02 25.76
25.14 25.88 26.63
25.26 26.00 26.75
26.50
27.24
27.98
28.72
27.37
28. 12
28.86
27.50
28.25
29.00
9.3
22.37
23.12
23. 87
24.62
25.37
9.4 22.47
23. 22
23.98
24.73
25.49
26.12 26.88
26. 24
27.63 28.38
29.13
27.00 27.75 | 28.51
29.27
9.5
22.57
23.33
9.6
22. 67
23.43
24.19
24.95
24.08 24.84 25.60 26.36 | 27.12 | 27.88 | 28.64
25.71 26.48 27. 24
29.40
28.00 28.77
29.53
9.7
22.76
23.53
24. 29
25.06 25.83 26.59
27.36
28. 13
28.00
29.67
9.8
22.86
23. 63
24.40
25.17 25.94 26.71 27.48
28.25
29.02
29.80
9.9
29.93
22.96
29.15
23.73
26.05 26.82 ❘ 27.60 | 28.37
24.50
25.27
HYDRAULIC TABLES
27
sections, given by the formula D₂= +
Depth
before
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
D₁
2
V₁-Velocity before the jump
2v₁² D₁ D₁²
2v₁²D₁
+
-Con.
g
4

the jump
=D₁
45
46
47
48
49
50
52
54
56
58
5.0
22.72
23. 27
23.83
24.38
24.94
25.49
26.60
27.72
28.83
29.94
5. 1
22.92
23.48
24.04
24.60
25. 16
25.72 26.85
27.97
29.09
30. 21
5.2
23.12
23. 69
24. 25
24.82
25.39
25.95
27.08
28.22 29. 35
30.48
5.3
23.32
23.89
24. 46
25.03
25.61
26. 18
27.32
28.46 | 29.61
30.75
5.4 23.52 24.09
24.67
25.25
25.82
26.40
27.55
28.71
29.86
31.02
5.5
23.71
24. 29
24.87
25.46
26.04
26. 62
27.79
28.95
30.12
30. 12
31.28
5.6
23.90
24.49
25.08
25.66
26. 25
26.84
28.01
29. 19
30.37
31. 54
5.7
24.09
24. 69
25. 28
25.87
26. 46
27.06
28. 24
29.43
30.61
31.80
5.8
24. 28
24.88
25.48
26.07
26.67
27.27
28.46
29.66
30.86
32.05
5.9
24.47
25.07
25.67
26. 27
26.88
27.48
28.69
29.89
31. 10
32. 31
6.0
24. 65
25. 26
25.87
26.47
27.08
27.69
28.91 30.12
31. 34
32.56
6.1
24.83
25.45
26.06
26. 67
27.28
27.90
29.12 | 30.35
31.58
32.80
6.2
25.01
25.63
26. 25
26.87
27.48
28. 10
29. 34 | 30.57 | 31.81
33.05
6.3
25. 19
25.81
26. 44
27.06
27.68
28.30
29.55
30.80 32.04
33. 29
6.4
25.37
26.00
26.62
27.25
27.88
28. 51
28.51
29.76
31.02 | 32.27
33.53
6.5 25.54
26. 18
26.81
27.44
28.07
28.71
29.97
31. 24
32.50
33.77
6.6 25.72
26.35
26.99 27.63
28. 27
28.90
30. 18
31.45 32.73
34.00
6.7 25.89
26.53
27.17
27.81
28.46
29.10
30.38
31.67
32.95
34. 24
6.8
26.06
26. 71
27.35
28.00
28.65
29. 29 | 30. 59
31.88 33.18
34.47
6.9 26. 23
26.88
27.53
28. 18
28.83
29.48 30.79
32.09❘ 33.40
34.70
7.0 26.40
27.05
27.71
28.36
29.02 29.67
30.99
32.30 | 33.61
34.93
7.1 26.56
27. 22
27.88
28.54
29.20 29.86
31. 19
32.51 33.83
35. 15
7.2 26.73
27.39
28.06
28.72
29.39
30.05
31.38
32.71 34.04
35.38
7.3 26.89
27.56
28. 23
28.90 29.57
30. 24
31.58 | 32.92 | 34. 26
35.60
7.4 27.05
27.72
28.40
29.07
29.75 30.42
31.77
31.77
33. 12 | 34. 47
35.82
7.5
27. 21
27.89
7.6
27.37
28.05
28.73
7.7
27.53
28. 21
28.57 29.25
29.42
28.90 29.59
29.92
29.92 | 30.60 | 31.96
33. 32 | 34. 68
36.04
30. 10 | 30.78 | 32. 15
33.52 34. 89
36.25
30. 28
30.96 32.34 |
33.72 | 35. 09
36.47
7.8
27.68
28.37
29.07
29.76
30.45
31. 14 32.53
33.91
35.30
36.68
7.9
27.84 28.53 29.23 29.93
30.62
31.32 | 32.71
34. 11
35. 50
36.89
8.0
27.99
28.69 29.39 30.09
30.79
31.49 32.90
34. 30 | 35.70
37.11
8.1
28. 14
28.85 29.55 30.26
30.96
31.67
33.08
34.49
35.90
37.31
8.2
28.30
29.00
29.71
30.42
31. 13
31.84
33. 26
34.68 36. 10
37.52
8.3 28.45 29. 16
29.87
30.58
31.30
32.01
33. 44
34.87 36.30
37.73
8.4 28.59 29.31
30.03
30.75
31.46
32. 18
33.62 | 35.05 | 36.49
37.93
8.5 28.74 29.46
30. 18
30.91
31.63 32.35
33.80
33.80 35. 24 | 36, 69
38. 13
8.6 28.89 29.61
30.34
31.07
31. 07
31.79 | 32.52 | 33.97 35.42 36. 88
36.88
38.33
8.7
29.03
29.76 30.49
31. 22
31.95 32.68
34. 15 | 35. 61 | 37.07
38.53
8.8
29. 18
29.91 30.65
31.38
32. 11
32.85
34.32
35. 79
37.26
38.73
8.9
29.32
30.06
30.80
30.80 |
31.54 | 32. 27
33.01
34. 49
35.97
37.45
38.93
9.0 29.47
30. 21
30.95
31.69
32.43
33.18
34.66
36. 15
37.64
39.12
9.1 29.61
30. 35
31. 10
31.84 32.59
33.34
34.83
36. 33
37.82
39.32
9.2 29.75
30.50
31. 25
32.00
32.75 33.50
35.00
36.50
38. 01
39.51
9.3
29.89
30. 64
31.39
32. 15
32.90 33.66
35. 17
36.68
38. 19
39.70
9.4
30.03
30.78
31.54
32.30
33.06
33.82 | 35.33
36.85
38.37
39.89
9.5
30. 16
30.92 | 31.69 32.45
33. 21
33.97 35.50
37.03
38.55
40.08
9.6
30.30
31.07 31.83 | 32.60 | 33.36
34. 13
35.66
37.20
38.73
40.27
9.7
30.44
31.20
31.97 32.74
33.52
34. 29
35.83
37.37 38.91
40.46
9.8
30. 57
31. 34
32. 12 | 32.89
33.67
34.44
35.99
37.54 39.09
40. 64
9.9
40.83
30.70
37.71 39.27
31.48 | 32. 26 | 33.04 33.82
36. 15
34.59
28
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
DIX
2v₁2D1, D₁² 2
+
g
-Con.
4
sections, given by the formula D2=
2

Depth
before
01=Velocity before the jump
the jump
= Di
60
62
64
66
68
70
72
74
76
78
5.0
31.05 32.16
33.28
5.1
31.34
32.46
33.58
34.39 35.50
34.71 35.83
36. 61
36.95
5.2 31.62 32.75
33.89
5.3
31.90 33.04
34. 19
35.33
36.48
5.4
32.17 33.33
34.49
35. 64
35.64
36.80
37.73 38.84 39.95
38.08 39.20 40.33
35.02 36.16 37.29 38.43 39.56 40.70
37.62 38.77
37.95 39.11
41.07
41.45
41.83
39.92 41.06
42.21
40.27 41.42
42.58
5.5 32.45
33. 61
33.61
34.78
35.95
37.11
38.28 39.45
40.62 41.78
42.95
5.6 32.72
33.90
35.07
36.25
37.43
38.60
39.78
40.96 42.14
43.32
5.7 32.99 34.17
35.36
36. 55
37.74
38.92
40.11
41.30 42.49
43.68
5.8 33.25
34.45 35.65
36.84
38.04
39.24 40.44
41.64
42.84
44.04
5.9
33.51
34.72
35.93
37.14
38.35
39.55 | 40.76
41.97 43.18
44.39
6.0 33.77
34.99
36. 21
37.43
38.65
39.86 41.08 | 42.30 | 43.52
44.74
6.1 34.03 35.26
36. 49
37.71
38.94
40.17 | 41.40 42.63 43.86
45.09
6.2 34.29 35.52
36.76
38.00
39.24
40.48 41.72
42.95 44.19
45.43
6.3
34.54 35.79
37.03
38.28
39.53
40.78 42.03
43.28
44.52
45.77
6.4
34.79 | 36.05
37.30
38.56
39.82
41.08
42.34
43.59
44.85
46.11
6.5
6.6
6.7
6.8
6.9
♡ 00 -2 0 S
35.04
36.30
37.57
38.84
40.11
41.37
42.64
43.91 45.18
46.45
3D. 28
36.56
37.84 39.11
40.39
41.67
42.95
44.22
45.50
46.78
35.52
36.81
38.10 39.38
40.67
41.96
43.25
44.53
45.82
47.11
35.77 | 37.06 38.36
39.65
40.95 42.25
43.54
44.84
46. 14
47.44
36.00
37.31
38.62
39.92 41.23
42.53
43.84
45.15
46.45
47.76
7.0 36.24 37.56
38.87
40.19 41.50
42.82
44.13
45.45 46.77
48.08
7.1 36.48 37.80
39. 12
40.45 41.77
43.10
44.42
45.75
47.08
48.40
7.2 36.71
38.04
39.38
40.71
42.04
43.38
44. 71
46.05
47.38
48.72
7.3 36.94
38.28
39.63 40.97
42.31
43.66
45.00
46.34 47.69 49.03
7.4 37.17 38.52
39.87 41.23 42.58 43.93
45.28
46.64 47.99
49.34
7.7 37.85 39.23 40.60
7.8 38.07 39.46
7.9 38.29 39.69
8.1 38.73 40.14
7.5 37.40 38.76 40.12 41.48 42.84
7.6 37.62 38.99 40.36 41.73 43.10
41.98 43.36
40.84 42.23
41.08 42.48
8.0 38.51 39.91 41.32 42.72
41.55 42.97
44.20
45.57
46.93 48.29
49.65
44.47
45.84 47.22 48.59
49.96
44.74
46.12
47.50 48.88
50.26
43.62
45. 01
46.40
47.79
49.18 50.56
43.88
45.27 46.67
48.07
49.47
50.86
44.13| 45.54 | 46.94
48.35
49.76
51.16
8.2
41.79 43.21
9.0
9.1
43.81
9.2
41.02 42. 52
44.03
38.94 40.36
46.06 47.48
8.3 39.16 40.59 42.02 43.45
46.31 47.74
8.4 39.37 40.81 42.25 43.69
46.57 48.01
8.5 39.58 41.03 42.48 43.92 45.37 46.82 48.27
8.6 39.79 41.25 42.70 44.16 45.62 47.07 48.53
8.7 40.00 41.46 42.93 44.39 45.86 47.32 48.79
8.8 40.20 41.68 43.15 44.62 46.10 47.57
8.9 40.41 41.89 43.37 44.85 46.33 47.82
40.61 42.10 43.59 45.08 46.57
40.82 42.31
45.31 46.81 48.31
45.53 47.04 48.55
44.38 45.80 47.21
44.63
48.63 50.04
51.46
48.90
50.33
51.75
44.88
49.18
50.61
52.04
45. 13
49.45 50.89
52.33
49.72
51.17
52.62
49.99 51.45
52.90
50.25
51.72
53. 19
49.04 50.52
51.99
53.47
49.30 | 50.78
52.27
53.75
48.06
49.55 51.04
52.54
54.03
49.80
51.30 52.80
54.30
50.05
51.56 53.07 54.58
9.3 41.22
42.73
44. 24
45.76 47.27 48.79
50.30
51.82 53.33
54.85
9.4
41.41 42.94
44.46
45.98
47.50 49.03
50.55
52.07 53.60 55.12
9.5 41.61 43, 14
9.6 41.81 43.35 44.88
9.7 42.00 43.55 | 45.09
9.8 42.20 43.75 45.30
44. 67
46.20 47.73 49.26
50.80
52.33
53.86
55.39
46.42 47.96 49.50 51.04
46.64 48.19 49.73 | 51.28
51.28 52.83
46.86 48.41 49.97 51.52
52.58
54. 12
55.66
54.38
55.92
53.08
54.63
56. 19
9.9 42.39 43.95 45.51
56.45
47.07 48.64 50.20 51.76
54.89
53.32
HYDRAULIC TABLES
29
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂= −D¹+
2
2v₁²D₁, D₁²
+ -Con.
4
Depth
before
+
2 V g

v=Velocity before the jump


the jump
=D₁
80
82
84
86
88
90
92
94
939
98
5.0 42.18
43.29
44. 41
45.52 46.63 47.75
48.86
49.98 51.09 52.20
5. 1 42.58 43.70
44.82
45.95
47.07
48.20
49.32
50.45 51.57
52.70
5.2❘ 42.97 44.10
45.24
46.37
47.51
48.65
49.78
50.92
52.05
53.19
5.3
43.36 44.50
45.65
46.79
47.94
49.09
50.23
51.38 52.53
53.67
5.4 43.74
44.90
46.05
47.21
48.37 49.52
50.68
51.84
53.00
54. 16
5.5
44.12
45. 29
46.45
47.62
48.79 | 49.96
51. 13
52.29 53.46
54.63
5.6
44.49
45.67
46.85
48.03
49. 21
50.39
51.56
52.74
53.92
55. 10
5.7 44.87 46.05
47.24
48.43
49.62
50.81 52.00
53.19 54.38
55.57
5.8 45.23 46.43
47.63
48.83
50.03
51.23
52.43
53.63 54.83
56.03
5.9
45.60 46.81 48.02
49.23
50.44
51.65
52.86 54.07 55.28
56.49
6.0
45.96 47.18
48.40
49.62
50.84
52.06
53.28
54.50 55.72
56.94
6.1
46.32
46.32 47.55
48.78 50.01 51.24
52.47
53.70
54.93 56.16
57.39
6.2
46.67
46.67
47.91
49.15
50.39
51.63
52.87
54. 11
55.35 | 56.59
57.83
6.3 47.02 48.27
49.52
50.77
52.02
53.27
54.52
55.77 57.02
58.27
6.4 47.37 48.63
49.89
51.15
52.41
53.67
54.93
56.19 57.45
58.71
6.5
47.72
47.72
48.99
50.26
51.52
52.79
54.06
55.33
56.60 57.87
59.14
6.6
48.06 49.34
50.62
51.90
53.17
54.45
55.73
57.01
58.29
59.57
6.7 48.40 49.69
50.98 52.26
53.55
54.84
56. 13
57.42 58.71
60.00
6.8 48.73 50.03
51.33 52.63
53.93
55.23
56.52
57.82 59.12
60.42
6.9 49.07 50.38
51.68 52.99
54.30
55.61
56.91 58.22 59.53
60.84
7.0 49.40 50.72 52.03 53.35
54.67
55.98
57.30 58.62 59.94
61.25
7.1 49.73 51.05 52.38 53.71
55.03
56.36
57.69 59.01 60.34
61.67
7.2 50.05
51.39 52.72
54.06
55.40
56.73
58.07
59.40 60.74
62.08
7.3 50.38
51.72 53.07
7.4 50.70
54.41
55.79
54.73
56. 12
7.9 52.26 53.66
55.06
56.46
55.38
8.8
54.94
8.9
55. 23
59.69
54.41
52.05 53.40 54.76 56.11 57.47 58.82 60.18 61.53
7. 5
51.01 52.38 53.74 55.10
55.10 56.47 57.83
61.92
7.6 51.33 52.70 54.07 55.45 56.82 58.19 59.56 60.94 62.31
7.7 51.64 53.02
57.17 58.55 59.93 61.31 62.69
7.8 51.95 53.34
57.51 58.90
57.86 59.26
8.0 52.57 53.98
56.79 58.20 59.61
8.1 52.87 54.29 55.71 57.12 58.54
8.2 53.18 54.60 56.03 57.45 58.88
8.3 53.48 54.91 56.34 57.78 59.21
8.4 53.77 55.22
56.66 58.10 59.54
8.5 54.07 55.52
56.97 58.42 59.87
8.6 54.36 55.82 57.28 58.74 60.20
8.7 54.65 56.12 57.59 59.06 60.52
56.42 57.90 59.37
56.72 58.20
55.75
57.10
58.45 59.79
61.14
62.48
62.88
59.19 60.56
63.28
63.68
64.07
62.05
60.29 61.68 63.07
60.66
64.47
63.45
64.85
61.01 62.42
63.83
65. 24
59.95
61.37 62.79
64. 21
65.62
60.30
61.73 | 63.15
64.58
66.00
60.64
62.08 63.51
64.95
66.38
60.98
62.43 63.87
65.31
66.76
61.32 62.77
64.23
65.68
67. 13
61.66
61.99
63.12 64.58
66.04
67.50
63.46
64.93
66.40
67.87
60.85 62.32
63.80
65. 28
66.75
68.23
61.17 | 62.65
64. 14
65.62 67.11
68.59
9.0 55.52
57.01 58.50
60.00
61.49 62.98
64.48
65.97
67.46
68.95
9.1 55.80
57.30 58.80
60. 31
61.81 63.31
64.81
66.31
67.81
69.31
9.2
56.09 57.60 59.10
60.61
62.12
63.63
65. 14
66.65
68. 16
69.67
9.3 56.37 57.88 59.40 60.92
62.44
63.95
65.47
66.99
68.51
70.02
9.7
9.8
9.9
16 CO 2 ∞ ∞
9.5 56.92
58.46
58. 74
59.99 61.52 63.06 | 64.59
66.12
67.66 | 69.19
70.73
9.6 57.20
57.47
59.02
57.75 59.30
58.02 59.58 61.15 62.71
60.28
61.82❘ 63.36 64.91
66.45 | 67.99 69.53
71.07
60.57 62. 12
63.67
65. 22
66.77 68.32
69.87
71.42
60.86
62.42
63.97
65.53
67.09 68.65
70.20
71.76
64.28
65.84
67.41 68.97
70.54
72.10
9.4 56.65 58.17 59.70 61.22
70.38
62.75
65.80 67.32 68.85
64. 27
30
HYDRAULIC TABLES
Table 3.—Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁ 2012D1, D2
+
+
-Con.
2
g
4

Depth
before
v=Velocity before the jump


the jump
= Di
100
105
110
115 120 125 130 135 140 145
150
5.0
53.32
56. 10
5.1
53.82
56.64
58.89
59.45
61.68 64.46 67.25 70.03 72.82 75.61 78. 39 81. 18
62.26 65.08 67.89 70. 71] 73.52
76.33 79.15 81.96
5.2
54.33
57.17
60.01
62.85 65.69 68.53
71. 37
74. 21
77.06 79.90 82.74
5.3
54.82 57.69
60.56
63.43 66.29 69. 16
72.03
74.90
77.77| 80.64| 83. 51
5.4
55.31 58.21
61. 10
64.00 66.89 69.79
72. 68
75. 58
78.47 81.37 84.27
5.5
55.80 58.72
61. 64
64.56 67.48 70. 41
73. 33
76. 25
79. 17 82. 10 85.02
5. 6
56.28 59.23
62. 18
65. 12 68.07 71.02 73.97
76.92
79. 87 82.82 85.76
5.7
56.76 59.73
62.70
65.68 68.65 71.63 74.60
77.58
80.55
83.53 86.50
5.8
57.23 60.23
63.23
66. 23
69.23❘ 72. 23
75. 23
78.23
81. 23
84. 23| 87.23
5.9
57.70
60.72
63.75
66.77 69.80 72.82
75.85
78.88
81.90
84. 93 87.96
6.0
58. 16
61. 21
64. 26
67.31 70.36 73. 41
76. 47
79. 52
82.57
85. 62 88.68
6. 1
58.62
61. 69
64.77
67.85 70.92 74.00
77.08
80.15
83. 23
86. 31 89.39
6.2
59.07
62.17
65. 27
68.38 71.48 74. 58
77.68
80.78
83.89
86.99 90.09
6.3
59.52
62.65
65.77
68.90 72.03| 75. 15|
78. 28
81. 41
84. 54|
87. 66
90.79
6.4
59.97
63. 12
66. 27
69.42 72.57 75.72
78.88
82.03
85. 18
88. 33
91.49
6.5
60.41
63.59
66.76
69.94 73.11 76. 29
79. 47
82.64
85.82
89.00 92.17
6.6
60.85 64.05
67.25
70.45 73.65 76. 85
80. 05
83. 25
86. 45
89. 65
92.86
6.7
61.29 64.51
67.73
70.96 74. 18
77. 41
80. 63
83.86
87.08
90.31
93. 53
6.8
61.72 64.97 68.21
6.9 62.15 65.42
7.0 62.57 65.87
71. 46
74.71
77.96
81. 21
84. 46
87. 71
90. 95
94. 20
68.69
71.96 75. 23
78. 50
81. 78
85. 05
88. 32
91. 60
94.87
69.16
72.46 75.75
79.05
82.34
85.64
88.94
92. 23
95. 53
7.1 62.99
66.31 69.63
72.95 76. 27
79.59
82.91|
86. 23|
89. 55
92.87
96. 19
7.2
7.3
7.4
63.41 66.75 70.09
63.83 67.19 70.56
64.24 67.63
73.44 76.78 80. 12
83. 46
86.81
90. 15
93. 49
96.84
73.92 77.29 80.65
84.02
87.38
90. 75
94. 12
97.48
71.01
74.40 77.79 81. 18
84. 57
87.96
91.35
94.73 98. 12
7.5
64.65 68.06 71.47
74.88 78.29 81.70
85. 11|
88. 52
91.94
95.35 98.76
7.6 65.05 68.49 71.92
75.35 78.79 82.22
85. 65
89.09
92. 52
95.96 99.39
7.7
65.46
68.91 72.37
75.82 79.28 82. 74
86. 19
89.65
93. 11
96. 56 100. 0
7.8
65.86
69.33
72.81
76.29 79.77 83. 25
86. 73
90. 20❘
93. 68
97. 16 100. 6
7.9
66. 25
69.75
73.25
76.75 80.25 83.75
87. 26
90.76
94. 26
97. 76 101. 3
8.0
66.65
70.17
73.69
8. 1
67.04
70.58
74. 13
8.2
67.43 70.99
74. 56
8.3
67.81 71.40
74.99
77.21 80.74 84.26 87.78
77.67 81.21 84.76 88. 30|
78. 12 81.69 85. 26
78.58 82.16❘ 85. 75
91.31 94. 83
98. 35 101.9
91.85| 95. 40
98. 94 102. 5
88.82
92.39 95.96 99. 53103. 1
89.34
92.93
96. 52 100. 1 103. 7
8.4
68.20 71.81
75.42
79.02 82.63 86. 24
89. 85
93. 46
97.07 100.7
104.3
8.5
68.58 72.21
75.84
8.6
68.96 72.61
76.26
8.7
69.33 73.01 76.68
8.8
69.71 73.40 77.09
8.9
70.08 73.79 77.51
79.47 83.10 86. 73
79.91 83. 56 87.22
80.35 84.02 87.70
80.79 84.48 88. 18
81.22 84.94 88.65
90.36
93.99
97.63 101.3
104.9
90.87 94. 52
98. 18 101. 8
105. 5
91.37 95. 05
98. 72 102, 4
106. 1
91.87 95. 57
99. 26 103. 0
106.7
92.37
96.08
99. 80|103. 5
107. 2
9.0
70.45 74.18 77.92
9.1
70.82
74.57
9.2
71. 18
9.3
71.54
9.6
9.7
9.8
81.65 85.39 89. 12
78.33 82.08 85.84 89. 59
74.96 78.73 82.51 86.28 90.06 93. 84
75.34 79.13 82.93 86.73 90.53 94.32
9.4 71.90 75.72 79.53 83.35 87.17 90.99 94. 81
9.5 72.26 76. 10 79.93 83.77 87.61 91.45 95. 29
72.62 76.47 80.33 84.19 88.04 91.90 95. 76 99.62 103.5
72.97 76.85 80.72 84.60 88.48 92.36 96. 23 100. 1
73.32 77.22 81.11 85.01 88.91 92.81 96. 71100. 6
92.86
96. 60 100. 3
104.1
107.8
93. 35
97. 11100.9
104. 6
108.4
97.62 101.4
105. 2
109.0
98. 12 101.9
105.7
109. 5
98.63 102.4
106.3
110. 1
99. 12103.0
106.8 110.6
107.3 111. 2
104. 0 107.9 111.8
104. 5 108. 4 112.3
9.9
105.0 |108.9 112.9
73.67 77.59 81.50 85.42 89.34| 93. 26| 97. 17|101.1
HYDRAULIC TABLES
31
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D2=
D₁
2v₁²D₁, D₁²
+
-Con.
g
4

Depth
before
01=Velocity before the jump
the jump
=D1
18
19
20
21
22
23
24
25
26
27
10.0
10.05
10.80
11.55
12.30
13.06
13.81
14.58
15.34
16. 10
16.87
10. 1 10.08
10.83 11.59
12. 34
13. 10
13.86
14.63
15.40
16. 17
16.94
10.2
10.87 11.63
12.39
13. 15
13.92
14.68
15.45
16.23
17.00
10.3
10.90 11.66 12.43
13. 20
13.96
14. 74
15.51
16.29
17.06
10.4
10.94
11.70
12.47
13. 24
14. 01
14. 79
15.57
16. 35
17. 13
10.5
10.98
11.74 12.51
13.29
14.06
14.84
15.62
16. 41
17.19
10.6
11.01 11.78
12.55
13. 33
14. 11
14.89
15.68
16.46
17.25
10.7
11.05 11.82
12.60
13.38
14. 16
14.95
15.73
16.52
17.32
10.8
11.08
11.85
12.64
13.42
14. 21
15.00
15.79
16.58
17.38
10.9
11. 12
11.89
12.68
13.47
14. 26
15.05
15. 84
16. 64
17.44
11.0
11. 15
11.93
12.72
13.51
14.30
15. 10
15.90
16.70
17.50
11. 1
11. 18
11.97 12.76
13.55
14. 35
15. 15
15.95
16.75
17.56
11. 2
11.22
12.01 12.80
13.60
14.40
15. 20
16.00
16. 81
17.62
11.3
11.25
12.04 12.84
13. 64
14. 44
15.25
16.06
16.87
17.68
11. 4
12.08 12.88
13.68
14.49
15.30
16. 11
16.92
17.74
11. 5
12.11 12.92
13.72
14.53
15. 35
16. 16
16.98
17.80
11.6
12. 15
12.96
13.77
14.58
15. 39
16. 21
17.03
17.85
11.7
12. 19
12.99
13.81
14.62
15. 44
16. 26
17.09
17.91
11.8
12. 22
13.03
13.85
14. 67
15. 19
16. 31
17. 14
17.97
11.9
1.2. 26
13.07
13.89
14.71
15.54
16.36
17.19
18.03
12.0
12.29
13. 11
13.93
14.76
15.58
16. 41
17.25
18.08
12.1
12.32
13. 15
13.97
14.80
15. 63
16.46
17.30
18. 14
12. 2
12. 36
13. 18
14.01
14.84
15.68
16. 51
17.35
18.20
12.3
12.39
13. 22
14.05
14.88
15.72
16. 56
17.41
18.25
12. 4
12.43
13.26
14.09
14.93
15.77
16. 61
17.46
18.31
12.5
12.46
13. 29
14. 13
14.97
15.81 16.66
17.51
18.36
12.6
13. 33
14. 17
15.01
15.86
16.71 17.56
18.42
12.7
13.36
14.21
15.05
15.90
16.76 17.61
18.47
12.8
13.40
14.25
15. 10
15.95 16.81 17.66
18.53
12.9
13.43
14.28
15. 14
15.99
16.85 17.71
18.58
13.0
13.47 14.32
15. 18
16.01
16.90 17.76
18.63
13. 1
13.50
14.36
15. 22
16.08
16.95 17.81
18.68
13.2
13.54
14. 40
15.26
16. 12
16.99 17.86 18.74
13.3
13. 57
14.43
15.30
16.17
17.04 17.91 18.79
13. 4
13.61
14. 47
15. 34
16. 21
17.08
17.96
18.84
13.5
13. 64
14. 51
15.38
16.25
17. 13
18.01
18.89
13, 6
13.67
14. 54
15. 42
16.30
17. 18
18.06
18.95
13.7
13.71
14.58
15.46
16.34
17.22
18.11
19.00
13.8
13.74 14.62 15.50
16.38
17.27
18. 16
19.05
13.9
14.65
15.54
16. 42
17.31
18.20
19. 10
14.0
14.69
15. 57
16.46
17.35
18.25
19.15
14. 1
14.72
15.61
16.50
17.40
18.30
19.20
14.2
14.76
15.65
16. 54
17. 44
18.34
19.25
14.3
14.79
15.69
16.59
17.49
18.39
19.30
14.4
14.83 15. 73
16.63
17.53
18.44
19.35
14. 5
14.6
14.7
14.8
14.86 15.76
14.90 15.80 16.71 17.62 18.53
14.93 15.84 16.75 17.66
14.97 15.87 16.78 17.70
16.67 17.57
18.48
19.39
19. 44
18.57
19.49
18.62
19. 54
14.9
19.59
15.00 15.91 16.82 17.74 18.66
32
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂ = D¹+1 +
D₁ 2v₁2D₁, D₁2
2
-Con.
Depth
before
2
V₁ = Velocity before the jump
g
4

the jump
=D₁
28
29
30
31
32
33
34
35
36
37
10.0
17.64
10. 1
18.41 19.18
17.71 18.48 19.26
19.95
20.73 21.50 22.27
23.05
23.83
24.60
20.03
20.81 21.59
22.37
23. 14
23.92 24.71
10.2
17.78 18.55 19.33
20.11
20.89 21.67 22.46
23. 24
24.02
24.81
10.3 17.84
18.62
19.41
20.19
20.97
21.76 22.54
23.33
24.12 24.91
10.4 17.91
18.70 19.48
20.27
21.06
21.84 22.63
23.42
24.22 25.01
10.5 17.98
18.77 19.55
20.34
21.14
21.93
22.72
23.52 24.31
25.11
10.6
18.04
18.83 19.63
20.42
21.22
22.01
22.81
23.61 24.41
25.20
10.7
18. 11
18.90
19.70
20.50
21.30
22.10
22.90
23.70 24.50
25.30
10.8
18. 17
18.97
19.77
20.57
21.38
22. 18
22.98
23.79 24.59
25.40
10.9
18. 24
19.04
19.84
20.65
21.45
22.26
23.07
23.88 24.69
25.50
11.0 18.30
19. 11
19.92
20.72
21.53
22.34
23.15
23.97 24.78 25.59
11.1
18.37
19. 18
19.99
20.80
21.61
22.42
23. 24
24.05
24.87
25.69
11.2
18.43
19. 24
20.06
20.87
21.69 22.50
23.32
24. 14
24.96
25.78
11.3
18.49
19.31
20.13 20.94
21.76
22.58 23.41
24. 23
25.05
25.88
11. 4
18.56
19.37 20.20
21.02
21.84
22.66 23.49
24.32
25. 14
25.97
11.5 18.62 19.44
20.26
21.09
21.92
22.74
23.57
24.40
25. 23
26.06
11.6 18.68 19.50 20.33
21.16
21.99
22.82
23.65
24.49
25.32
26.16
11.7
18.74 19.57 20.40
21.23
22.07
22.90
23.74
24.57
25.41
26.25
11.8
18.80 19.63 20.47
21.30
22. 14
22.98
23.82
24.66 25.50
26.34
11.9
18.86 19.70 20.53
21.37
22.21
23.06
23.90 24.74
25.59
26.43
12.0
18.92 19.76 20.60 21.44
22.29
23. 13
23.98
24.83 25.67
26.52
12, 1
18.98 19.82 20.67 21.51 22.36
23.21
24.06
24.91 25.76
26.61
12.2
19.04 19.89 20.73 21.58 22.43
23.28
24. 14
24.99 25.85
26.70
12.3
19.10
19.95 20.80 21.65 22.51
23.36
24. 22
25.07
25.93
26.79
12. 4
20.01
19. 16
12.5 19.22 20.07 20.93 21.79
12.6 19.27 20.13 20.99 21.86
12.7 19.33 20.19 21.06 21.92 22.79
12.8 19.39 20.25 21.12
12.9 19.45 20.31
20.86 21.72
22.58
23.43
24.29
25. 15
26.02
26.88
22.65
23.51
24.37
25. 24
26.10
26.97
22.72 23.58
24.45
25.32
26. 18
27.05
23.66
24. 53
25.40
26. 27
27.14
21.99 22.86
23.73
24.60
25.48
26.35
27.23
21.18
22.06 22.93
23.80
24.68
25.56 26.43
27.31
13.0 19.50
20. 37
21.25
22.12 23.00
23.88 24.75
25.63
26.52
27.40
13. 1
19.56
20.43
21.31
22.19 23.07
23.95
24.83
25.71 26.60
27.48
13. 2
19.61
20.49 21.37
22.25 23.13
24.02
24.90
25.79 26.68
27.57
13.3
19.67
20.55
21.43 22.32 23.20
24.09
24.98
25.87 | 26.76
27.65
13.4
19. 72
20.61
21.49 22.38 23.27
24.16
25.05
25.95 26.84
27.73
13.5
19.78 20.67
21.55 22.45 23.3-1
24.23
25. 13
26.02 26.92
27.82
13.6 19.83 20.72
21.62
22.51 23.40
24.30
25.20
26.10
27.00
27.90
13.7 19.89 20.78
21.68
22.57 23.47
24.37
25.27
26. 17
27.08
27.98
13.8 19.94 20.84 21.74 22.64 23.54
13.9 19.99 20.89 21.80 22.70
24.44
25.34
26.25
27.16
28.06
23.60
24.51
25.42
26.33 27.23
28.15
14.0
20.05 20.95 21.85
22.76
23.67 24.58
25.49
26.40 27.31
28.23
14. 1
20.10
21.01
21.91 22.82
23.73 | 24. 65
25.56
26.47 27.39
28.31
14.2
20.15
21.06
21.97 22.88
23.80 24.71
14. 3
20. 21
21.12
14.4
20.26
20.26
21. 17
14.5
20.31
21.23
14.6 20.36 | 21. 28
14.7 20.41 21.34
14.820.46
21.39
22.03 22.95 23.86 24.78
22.09 23.01 23.93 | 24.85
22.15 23.07 23.99 | 24.91
22.20 23.13 24.05 24.98
22.26 23.19 24.12 25.05
22.32 | 23. 25 | 24.18
25.63
25.70 26.62 27.54
25.77
26.55 27.47 28.39
28.47
26.69 27.62
28.55
25.11
25.84 26.77 27.70
25.91 26.84 27.77
25.98 26.91 27.85 29.78
26.05 26.98 27.92 28.86
28.63
28.70
14.9 20.51
28.00 28.94
21.44
26.12 27.06
22.37
25. 18
23. 31
24. 24
HYDRAULIC TABLES
33
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

Di
sections, given by the formula D₂=
2
+ V
D₁ 2v₁2D₁, D₁2
+
-Con.
g
4
Depth
before
V₁ = Velocity before the jump

the jump
= Di
38
39
40
41
42
43
44
45
46 6 47
10.0
25.38
25. 16
26.94
27.72
28.50
29.28 30.06
30.84 31.62
32.40
10.1
25.49
26. 27
27.05
27.83
23.62
29.40 | 30.19
30.97
31.75
32.54
10.2
25.59
26.38
27.16
27.95
28.74
29.52 30.31
31.10
31.89
32.68
10.3 25.70
26.49
27.28
28.07
28.86
29.65
30.44
31. 23
32.02
32.82
10.4 25.80 26.59 27.39
28.18
28.98
29.77
30.57
31.36
32.16
32.95
10.5 25.90 26.70 27.50
28.29
29.09
29.89
30.69
31.49
32.29
33.09
10.6
26.00 26.81 27.61
28.41
29.21 30.01
30.82
31.62
32. 42
33.23
10.7
26.11
26.91 27.72
28.52
29.33
30.13
30.94
31.75 32.55
33.36
10.8
26. 21
27.01 27.82
28.63
29.44
30.25
31.06
31.87
32.68
33.49
10.9
26.31
27.12 27.93
28.74
29.56
30.37
31. 18
32.00
32.81
33.63
11.0 26.41
27.22 28.04
28.85
29.67
30.49
31.31 32.12
32.94
33.76
11.1 26.51
27.32 28.14 28.96
29.78
30.60
31.43
32.25
33.07
33.89
11.2 26.60 27.43
11.3 26.70 27.53
11.4 26.80 27.63
28.25 29.07 29.90
30.72
31.55
32.37
33.20
34.02
28.35 29.18
28.46
30.01
30.84
31.67 32.49
33.32
34. 15
29.29
30.12
30.95
31.78
32.62
33.45
34.28
11. 5
26.90
27.73 28.56 29.40
30.23
31.07
31.90 32.74
33.57
34. 41
11.6
26.99 27.83
28.67 29.50
30.34
31.18
32.02
32.86
33.70
34.54
11.7 27.09 27.93
28.77 29.61
30.45
31.29
32, 14
32.98
33.82
34.67
11.8 27.18
28.03
28.87 29.71
30.56 31.40
32.25
33. 10
33.94
34.79
11.9 27.28
28. 12
28.97 29.82
30.67
31.52
32.37
33. 22
34.07
34.92
12.0 27.37
28.22
29.07
29.92
30.78
30.78
31.63
32.48 33.33
34. 19
35.04
12.1 27.46 28.32
12.2 27.56 28.41
29. 17
30.03
30.88 31.74
32.59 | 33.45
34.31
35. 17
29.27 30.13
30.99 31.85
32.71 33.57
34. 43
35.29
12.3 27.65 28.51
29.37 30.23
31.09 31.96
32.82 | 33.68 | 34.55
35.41
12.4
27.74 28.60
29.47 30.33
31.20
31.20
32.07
32.93 33.80 | 34.67
35.54
12, 5
27.83
28.70
29.57 30.44
31.30
32.17
33.04
33.91 34.79
35.66
12. 6
27.92
28.79
29.66 30.54
31.41
32.28 33.16
34.03
34.90
35.78
12.7
28.01 28.89
29.76 30.64
31.51
32.39 33.27
34. 14
35.02
35.90
12.8
28.10
28.98
29.86 30.74
31. 61
31.61
32.49
33.38
34.26
35.14
36.02
12.9
28. 19
29.07 29.95 30.83
31.72
32.60 33.48
34.37
35.25
36. 14
13.0
28.28
13. 1
13.2
29.16 30.05 30.93
28.37 29.26 30.14
28.46
31.03
29.35 30.24
31. 13
31.82 32.71
31.92 32.81
32.02 32.91
33.59
34.48
35.37
36.26
33.70 34.59 35.48
36.37
33.81
34.70
35.60
36.49
13.3
28.54 29.44 30.33
31.23
32.12 | 33.02
33.91
34.81 35.71
36.61
13. 4
28.63 29.53 30.42
13.5 28.72 29.62 30.52 31.42
13.6 28.80 29.71 30.61 31.51
13.7
31.32
32.22 33.12
34.02
34.92 35.82
36.72
32.32
33.22
34. 13
35.03 35.94
36.84
32.42
33.33
34.23
35. 14
36.05
36.96
28.89 29.79 30.70 31.61
32.52 33.43
34.34
35.25
36.16
37.07
13.8
28.97
29.88 30.79 31.70
32.62 | 33. 53
34. 44
35.36
36.27
37. 18
13.9
29.06
29.97 30.88 31.80
32.71 33.63
34.55
35.46
36.38
37.30
14.0
29. 14
14. 1
29.23
30.06 30.97 31.89
30.14 31.06
31.98
14. 2
14.3
29.31 30.23 31. 15
29.39 30.32
32.08
31.24
32. 17
14.4 29.47 30.40 31.33
32.26
32.81 33.73
32.91 33.83 34.75 35.67
33.00 33.93 34.85
33.10 34.03 34.95
33.19 34.12 | 35.06
34.65 35.57
36.49
37.41
36.60
37.52
35.78 36.71
37.63
35.88
36.81
37.75
35.99
36.92
37.86
14.8
29.80 30.74
14.5 29.56 30.49 31.42
14.6 29.64 30.57 31.51
14.7 29.72 30.66 31.59
31.68
32.35
33.29 | 34.22 | 35.16 | 36.09
37.03
37.97
32.44 33.38 34.32 35.26 36.20
32.53 33.47 34.42 35.36
32.62 33.57 34.51 35.46
37.14
38.08
36.30 37.24
38. 19
36.40 37.35
38.29
14.9
38.40
29.88 30.82 31.77
36.50 37.45
32.71 33.66 34.61 35.56
34
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂= −¹+
D₁ 2v₁2D₁, D₁2
+
Con.
g
4
Depth
before
the jump
01=Velocity before the jump
= Di
48
49
50
52
54
56
58
60
62
64
10. 0
33.18
33.96
34.75
36. 31
37.88
39.44
41.01
42.58
44. 15
45.72
10. 1
33.33
34. 11
34.90
36. 47
38.04
39.62
41. 19
42.77
44. 35
45.92
10. 2
33.47
34.26
35.05
36. 63
38.21
39.79
41.37
42.96
44.54
46. 13
10.3 33.61
34.40
35. 20 | 36.79
38.37
39.96
41.55
43. 15
44.74
46.33
10.4
33.75
34.55
35. 35
36. 94
38.54 40. 14
41.73
43.33
44.93
46.53
10. 5
33.89
34.69
35.49
37.10
38.70 | 40.31
41.91
43.52
45. 13
46.73
10.6
34.03
34.84
35.64
37.25 | 38.86
40.47
42.09
43.70
45.32
46.93
10, 7
34.17
34.98
35.79
37.40 39.02
40.64
42. 26
43.89
45.51
47. 13
10.8
34. 31
35. 12 35.93
37.56
39. 18
40.81
42.44
44.07
45.70
47.33
10.9
34. 44
35. 26 | 36.08
37.71
39.34
40.98
40.98
42.61
44. 25
45.89
47.52
11.0
34.58
35.40
36. 22
37.86 | 39.50
41. 14
42.79
44. 43
46.07
47.72
11. 1
34.71
35.54
36.36
38.01 39.66
41.31
42.96
44. 61 | 46. 26
47.91
11.2
34.85
35.68
36.50
38. 16
39.81
41.47
43. 13
44.79
46.45
48. 11
11.3
34.98
35.81
36. 64
38.31
39.97
41.63
43.30
44.96
46.63
48.30
11.4
35. 12
35.95
36.78 |
38. 45
40. 12
41.80
43.47
45. 14
46. 81
48.49
11.5
35.25
36.09 36.92
38. 60
40.28
41.96
43. 64
45. 32
47.00
48.68
11.6
35. 38
36. 22 | 37.06
38.75
40.43
42. 12
43.80
45.49
47. 18
48.87
11.7
35.51
36.35 37.20
38.89
40.58
42. 27
43.97
45. 66
47.36
49.05
11.8 35.64 36.49 37.34
39.03
40.73
42. 43
44. 13
45.84
47.54
49. 24
11.9 35.77
36.62 | 37.47
39. 18
40.88
42.59
44.30
46. 01
47.72
49.43
12.0
35.90
36.75 37.61
39.32
41.03
42.75
44. 46
46. 18
47.89
49.61
12.1
36.03
36.88
37.74 39.46
41. 18
42.90
44. 63
46.35
48. 07
49.80
12.2
36. 15
37.01
37.88 39.60
41.33
43.06
44.79
46.52
48. 25
49.98
12.3
36. 28
37. 14
38.01
39.74
41.48
43. 21
44.95
46.69
48. 42
50.16
12.4
36.40
37.27
38. 14
39.88 41.62
43.37
45. 11
46.85
48.60
50.34
12.5 36.53 37.40
38. 27
40.02 | 41. 77
43.52
45. 27
47.02
48.77
50.52
12.6 36.65
37.53
38. 41
40. 16
41.91
43.67
45. 43
47.18
48.94
50.70
12.7 36.78 37.66
38.54
40.30
42.06
43.82
45.58
47.35
49. 11
50.88
12.8 36.90 37.78 38.67
40.43
42. 20❘
43.97
45.74
47.51
49.29
51.06
12.9 37.02
37.91 | 38.80
40.57
42.34
44.12
45.90
47.68 49.46
51. 24
13.0
37. 15
38.03 38.92
40.71
42.49
44. 27
46.05
47.84
49.62
51.41
13.1
37.27
38. 16
39. 05
40.84 42.63
44. 42
46. 21
48.00
49.79
51.59
13.2
37.39
38.28
39. 18
40.97 42.77
44.57
46. 36
48. 16
49.96
51.76
13.3 37.51
38.41
39.31
41. 11
42.91
44.71
46.52
48.32
50. 13
51.93
13. 4
37.63
38.53
39.43
41. 24
43.05
44.86
46.67 48.48
50.29
52. 11
13. 5
37.75
38.65 39.56
41.37
43. 19
45.00
46.82 48.64 50.46
52.28
13. 6
37.86
38.77 39.68
41.50
43.32
45. 15
46.97
48.80 50.62
52.45
13.7
37.98
38.89 39.81
41.63 43.46
45.29
47.12
48.95
50.79
52.62
13.8
38. 10
39.01 39.93
41.76 43.60
45. 44
47.27
49. 11
50.95
52.79
13.9
38. 22
39. 13
40.05
41.89 43.74
45.58
47.42
49.27
51.11
52.96
14. 0
38.33
39.25
40. 18
42.02
43.87
45.72 47.57
49.42
51.27
53. 13
14. 1
38.45
39.37
40.30
42. 15
44.01
45.86
47.72 49.58 51.43
53.29
14.2
38.56
39. 49
40.42
42. 28
44. 14
46.00
47.86 49.73 51.59 53.46
14. 3
38.68
39.61
40.54
42. 41
44. 27
46. 14
48.01
49.88 51.75
53.63
14. 4
38.79
39.73 40.66
42.53
44. 41
46. 28
48. 16
50.03
51.91
53.79
14. 5
38.90
39.84
40.78 42.66 44.54
46.42 | 48.30
50. 19
52.07
53.96
14. 6
39.02
39.96
40.90
42.78 44.67 46.56 48.45
50.34
52.23
54. 12
14.7
39. 13
40.07
41.02
42.91 44.80 46.70
48.59
50.49 52.38
54.28
14.8
39. 24
40. 19
41. 14
43.03
44.93 46.83
48.73
50.64
52.54
54. 44
14.9
54.61
39.35
52.70
40.30
50.79
41. 25
48.88
43. 16
45.06 | 46.97
HYDRAULIC TABLES
35
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
2x
D₁ 2v₁²D₁, D₁²
+
g
4
-Con.
Depth
before
thejump
=
01=Velocity before the jump



= D1
66
68
70
72
74
76
78
80
82
10.0
47.29 48.86
50.43
52.00
53. 57
55. 14
56. 71
58. 29
59.86
10. 1
47.50
49.08
50.66
52.24
53.81
55. 39
56.97
58.55
60. 13
10.2
47.71
49.30
50.88
52. 47
54.06
55. 64
57.23
58.82
60.41
10.3
47.92
49.52
51. 11
52.70
54.30
55.89
57.49
59.08
60. 68
10.4
48. 13
49.73
51. 34
52.94
54.54
56. 14
57.74
59.35
60.95
10.5 48.34
49.95
51. 56
53. 17
54.78
56.39
58.00
59. 61
61. 22
10.6
48.55
50.16
51.78
53.40
55.01
56.63
58. 25
59.87
61. 49
10.7
48.75
50.38
52.00
53.63
55.25
56.88
58.50
60. 13
61. 75
10.8
48.96
50. 59
52. 22
53.85
55.49
57. 12
58.75
60.38
62.02
10.9
49. 16
50.80
52. 44
54.08
55.72
57.36
59.00
60. 64
62.28
11.0
49.36
51.01
52.66
54.30
55.95
57.60
59. 25
60.90
62.54
11.1
49.57
51. 22
52.87
54. 53
56. 18
57.84
59.49
61. 15
62.80
11.2
49.77
51.43
53.09
54.75
56.41
58.07
59.74
61.40
63.06
11. 3
49.97
51.63
53.30
54.97
56.64
58.31
59.98
61. 65
63.32
11. 4
50. 16
51.84
53. 51
55. 19
56.87
58.55
60. 22
61.90
63.58
11.5
50.36
52.04
53.73
55. 41
57.09
58.78
60.46
62. 15
63.83
11,6
50.56
52.25
53.94
55.63
57.32
59.01
60.70
62. 39
64.09
11.7
50.75
52.45
54. 15
55.84
57.54
59. 24
60.94
62. 64
64. 34
11.8
50.95
52.65
54. 35
56.06
57.77
59.47
61. 18
62.88
64.59
11.9
51. 14
52.85
54.56
56. 27
57.99
59.70
61. 41
63. 13
64.84
12.0
51.33
53.05
54. 77
56. 49
58. 21
59.93
61.65
63. 37
65. 09
12. 1
51.52
53.25
54.97
56.70
58.43
60. 15
61.88
63. 61
65. 34
12. 2
51.71
53. 44
55. 18
56.91
58.64
60.38
62. 11
63.85
65.59
12.3
51.90
53.64
55.38
57. 12
58.86
60. 60
62. 35
64.09
65.83
12.4
52.09
53.83
55.58
57.33
59.08
60.83
62.58
64.32
66. 07
12. 5
52.28
54. 03
55.78
57.54
59. 29
61. 05
62.80
64. 56
66.32
12.6
52.46
54.22
55.98
57.75
59.51
61. 27
63.03
64.80
66.56
12.7 52.65
54. 41
56. 18
57.95
59.72
61. 49
63. 26
65. 03
66.80
12.8
52.83
54. 61
56.38
58. 16
59.93
61.71
63.49
65. 26
67.04
12.9
53.02
54.80
56.58
58.36
60. 14
61.93
63.71
65.49
67.28
13.0
53. 20
54.99
56. 77
58.56
60.35
62. 14
63.93
65. 72
67.52
13. 1
53.38
55. 18
56.97
58.77
60.56
62.36
64. 16
65.95
67.75
13.2
53.56
55.36
57. 16
58.97
60.77
62.57
64.38
66. 18
67.99
13. 3
53.74
55.55
57.36
59. 17
60.98
62.79
64.60
66. 41
68. 22
13. 4
53.92
55. 74
57.55
59.37
61. 18
63.00
64.82
66.64
68.45
13.5
54. 10
55.92
57.74
59. 57
61.39
63. 21
65.04
66.86
68.69
13.6
54.28
56. 11
57.93
59.76
61.59
63.42
65. 25
67.09
68.92
13.7
54. 45
56. 29
58. 12
59.96
61.80
63. 63
65. 47
67. 31
69. 15
13.8
54.63
56.47
58.31
60. 16
62.00
63.84
65. 69
67.53
69.38
13.9
54.81
56.65 58.50
60.35
62.20
64.05
65.90
67.75
69.61
14. 0
54.98
56.83
58.69
60.55
62.40
64. 26
66. 12
67.97
69.83
14. 1
55. 15
57.02 58.88
60.74
62.60
64. 47
66.33
68. 19
70.06
14.2
55.33
57.19 59.06
60.93
62.80
64. 67
66.54
68. 41
70.28
14.3
55.50
57.37 59.25
61. 12
63.00
64.88
66.75
68. 63
70.51
14. 4
55. 67
57.55 59.43
61.31
63.20
65.08
66.96
68.85
70.73
14. 5
55.84
57.73
59.62
61.50
63.39
65. 28
67. 17
69. 06
70.95
14.6
56.01
57.91
59.80 61.69
63.59
65.49
67.38
69. 28
71. 18
14.7
56. 18
58.08
59.98
61.88
63.78
65. 69
67.59
69.49
71.40
14.8
56.35
58.26
60. 16
62.07
63.98
65.89
67.80
69.71
71, 62
14.9
71.83
56.52
69.92
58. 43
68.00
60. 34
66.09
62.26
64. 17
36
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D2=
D₁ 2v₁2D₁, D₁2
+
+
-Con.
2
g
4
Depth
before
the jump
= D₁
=
v₁=Velocity before the jump

84
86
88
909
92
94
96
98
100
10.0
61.43
63.00
64.58
66.15 67.72
69.30
70.87
72.44
74.02
10.1
61.71 63.29
64.88
66.46
68.04
69.62
71.20
72.78
74.36
10.2 62.00
63.58
65. 17
66.76
68.35
69.94
71.53
73. 12
74.71
10.3
62.28
63.87
65.47
67.06
68.66
70.26
71.86
73.45
75.05
10.4
62.55
64. 16
65.76
67.37
68.97
70.58 72.18
73.78
75.39
10.5
62.83
64.44
66.05
67.67
69.28
70.89
72.50
74.12
75.73
10.6
63. 11
64.73
66.34 67.96
69.58
71.20
72.82
74. 44
76.06
10.7
63.38
65. 01
66.63 68.26 69.89
71.52
73. 14
74.77
76.40
10.8
63.65
65.29
66.92 68.56
70.19
71.83
73.46
75.10
76.73
10.9
63.92
65.57
67.21 68.85
70.49
72.13
73.78
75.42
77.06
11.0
64. 19
65.84
67.49
69. 14
70.79 72.44
74.09
75.74 77.39
11. 1
64.46
66.12 67.77
69.43
71.09 72.75 74.40
76.06 77.72
11.2
64.73
66.39
68.06
69.72
71.39
73.05
74.71 76.38
78.05
11.3
64.99
66.66
68.34
70.01
71.68
73.35
75.02
76.70
78.37
11. 4
65. 26
66.94
68.61
70.29
71.97
73.65
75.33
77.01
78.69
11. 5
65. 52
67.21
68.89
70.58
72.26
73.95
75.64
77.33 79.01
11.6
65.78
67.47 69.17
70.86
72.55
74.25 75.94
77.64
79.33
11.7
66.04
67.74
69.44
71. 14
72.84
74.55
76.25
77.95
79.65
11.8 66.30
68.01
69.71
71.42
73.13
74.84
76.55
78.26
79.97
11.9 66.56
68.27
69.99
71.70
73.42
75. 13
76.85
78.57
80.28
12.0
66.81
68.53
70.26 71.98
73.70
75.43
77.15
78.87
80.60
12. 1
12.2
12.4
67.07 68.80 70.53
67.32 69.06 70.79
12.3 67.57 69.32
67.82 69.57
72.26 73.99
75.72
77.45 79.18
80.91
72.53
74.27
76.00 77.74
79.48
81.22
71.06 72.80
74.55
76.29
78.04
79.78
81.53
71.33
73.08
74.83
76.58
78.33
80.08
81.83
12.5
68.07 69.83
71.59
73.35
75. 11
76.86
78.62
80.38
82.14
12.6 68.32 70.09
71.85
73.62
75.38
77.15
78: 91
80.68
82.44
12.7
68.57 70.34 72.11
73.89
75.66
77.43
79.20❘
80. 97
82.75
12.8
68.82 70.60
72.37
74. 15
75.93
77.71
79.49
81.27
83.05
12.9
69.06 70.85 72.63
74.42
76.20 77.99
79.78
81.56
83.35
13.0
69.31
71.10
72.89
74.68
76.48
78.27
80.06
81.86
83.65
13. 1
69.55
71.35
73.15
74.95
76.75
78.55
80.35
82. 15
83.95
13. 2
69.79 71.60
73.40
75.21 77.02
78.82
80.63
82.44
84.24
13. 3
70.03 71.85 73.66
75.47 77.28
79.10
80.91
82.72
84.54
13.4
70.27 72.09
73.91
75.73
77.55
79.37
81.19
83.01
84.83
13.5
70.51 72.34
74. 16
75.99 77.82
79.64
81.47
83.30
85.13
13.6 70.75 72.58
74.42
76.25 78.08
79.91
81.75
83.58
85.42
13.7
70.99
72.83
74.67
76.50 78.34
80.19
82.03
83.87
85.71
13.8
71. 22
73.07
74.91
76.76
78.61 80.45
82.30
84. 15
86.00
13, 9
71.46
73.31
75. 16
77.02
78.87
80.72
82.58
84.43
86.28
14.0
71.69
73.55 75.41
77.27
79.13
80.99
82.85
84.71 86.57
14. 1
71.92
73.79
75.66
77.52 79.39
81.25
83.12
84.99 86.86
14.2 72.16
74.03
75.90
77.77
79.65 81.52
83.39
85.27 87.14
14.3
72.39 74.26
76. 14
78.02
79.90
81.78
83.66
85.54 87.42
14.4 72.62 74.50
76.39
78.27
80.16
82.04
83.93
85.82 87.71
14.5 72.85 74.74 76.63 78.52
80.41
82.31
84.20
86.09
87.99
73.07
14. 6
14.7 73.30 75.20 77.11 79.01
14.8
73.53 75.44 77.35
74.97 76.87 78.77
80.67
82.57
84.47
86.37
88.27
80.92 82.83
84.73
86. 64
88.54
79.26
81.17 83.08
85.00
86.91
88.82
14.9
89.10
73.75 75.67 77.59
87.18
79.50
85.26
81.42 83.34
HYDRAULIC TABLES
37
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
2
Di+
2v₁2D₁, D₁²
+
g
-Con.
4
Depth
before
*1= Velocity before the jump

the jump
=Di
105 110
115
120
125
130
135
- 140
145 150
10.0
77.95 81.89
25.83
89.76
93.70
97.64
10.1
78.32
82.27
86. 23
90.19
9-1. 15
10.2
78.68 82.66
86.63
90.61
94.59
10.3
79.04 83.04
87.03
91.03
95.03
101.6 105. 5
98.10 102.1 | 106. 0
98.56 102.5 106.5
99.02 | 103. 0 | 107.0
109.5
113.4
110.0 113.9
110.5 114.5
111.0
115.0
10. 1
79.40
83.42
87.43 91.45
95.46
99.48 103.5 107, 5
111.5
115.5
19. 5
79.76
83.79
87.83 91.86
95.90
99.93
104.0
108. O
112.0
116. 1
10.6
80.12
84. 17
88.22
92.27 96.33
100.4
104. 4
108.5
112.5
116.6
10.7 80.47
84.54
88.61
92.68
96.76
100. 8
104.9
109.0
113.1
117.1
10.8 80.82 84.91 89.00 93.09
97.18
101.3
105. 4
109.5
113.6
117.6
10.9
81.17
85.28 89.39
93.50
97.61
101.7
105.8
109.9
114. 1
118. 2
11.0
81.52
85.65 89.77
93.90
98.03
102. 2
106. 3
110.4
114.6
118.7
11. 1
81.86
86.01 90.16
94.31
98.45
102.6
106.8
110.9
115. 1
119.2
11.2
82.21
86.37
90.54
94.71
98.87
103. 0
107.2
111.4
115.5
119.7
11.3 82.55 86.71
90.92
95. 10
99.29
103.5
107.7
111.8 116.0
120.2
11.4
82.89 87.09 91.30
95.50
99.70
103.9
108. 1
112.3
116.5
120.7
11. 5
83.23 87.45
91.67
95.89
100. 1
104.3
108.6
112.8 117.0
121.2
11.6
83.57
87.81 92.05
96.29
100. 5
104.8
109.0
113.2
117.5
121.7
11.7
83.91 88.16 92.42
96.68
100.9
105. 2
109.5
113.7
118. 0
122.2
11.8
84.24 88.51 92.79 97.07
101.3
105. 6
109.9
114.2
118.5
122.7
11.9
84.57 88.87
93.16
97.45
101.7
106.0
110.3
114.6
118.9
123.2
12. 0 84.90
89.21
93.53
97.81
102. 2
106.5
110.8
115. 1
119.4
123.7
12. 1 85.23
89.56
93.89 98.22
102.6
106.9
111. 2
115.5
119.9
124.2
89.91
12.2 85.56
94.26
12.3 85.89 90.25 94.62 98.98
12.4 86.21 90.59 94.98
98.60
103.0 | 107. 3
111.6
116.0
120.3
124.7
103.3 107.7
112. 1
116.4 120.8
125.2
99.36
103.7
108. 1
112.5
116.9
121.3
125.7
12.5 86.54 90.94
95. 34
99.74
104. 1
108.5
112.9
117.3
121.7
126. 1
12.6
12.7 87.18 91.61
86.86 91.28
95.69
100.1
104.5
108.9
113. 4
117.8
122.2
126.6
96.05
100.5
104.9
109.4
113.8
118. 2
122. 7
127.1
12.8 87.50 91.95 96.40
100.9
105.3
109.8
114.2
118. 7
123. 1
127.6
12.9
87.82 92.29
96.75
101. 2
105.7
110. 2
114.6
119. 1
123.6
128. 1
13.0 88.13
92.62
97.11
101.6
106.1
110.6
115. 1
119.5
124.0
128.5
13. 1
13, 2
13.3
88.45
88.76 93.28 97.80
89.07
92.95 97.46
102.0
106.5
111.0
115.5
120.0
124.5
129.0
102.3 106.8
111.4
115.9
120.4
124.9
129.5
93.61 98.15
102.7 107.2
111.8
116.3
120.8
125.4
129.9
13.4
89.39 93.94
98.49
103.0 107.6
112.2
116.7
121.3 125.8
130. 4
13.5
89.69
94. 27
98.84
103.4 108.0 112.6
117.1
121.7
126. 3
130.9
13.6
90.00
94.59
99.18
103.8
108.4
112.9 117.5
122. 1
126.7
131.3
13.7
90. 31
94.91
99.52
104. 1
108.7 113.3
117.9
122.6
127. 2
131.8
13. S
90.62
95. 24
99.86
104.5
109.1 113.7
118.4
123.0
127.6
132.2
13.9
90.92
95.56
100.2 104.8
109.5
114.1
118.8
123.4
128. 0
132.7
14.0
91.22
95.88
100.5
105. 2
109.8
114.5
119. 2
123.8 | 128. 5
133. 1
14.1
91.53
96. 20
100.9
105.5
110. 2
114.9 119.6
124.2
128.9
133.6
14.2
91. 83
96.51
101. 2
105.9
110.6
115.3 120.0
124. 7
129.3
134.0
14.3
92. 13
96.83
101.5
106. 2
110.9
115.7
120.4
125. 1
129.8
134.5
14.4
92.42
97.14 101.9
106.6
111.3
116.0 120.8
125.5
130. 2
134.9
14.5 92.72 97.46 102. 2
106.9
111.7
116. 4
121.2
125.9
130.6
135.4
14.6 93.02 97.77
102.5
107.3
112.0
116.8
121.5
126.3
131. 1
135.8
14.7 | 93.31 98.08 102.9
14.8 93.61 98.39 103.2
107.6 112.4
117.2 121.9
126.7
131.5
136.3
108.0 112.7
117.5 122.3 127.1
131.9
136. 7
14.9 93.90 98.70 103.5
137. 1
108.3 113. 1
132. 3
117.9
127.5
122.7
38
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

D₁
sections, given by the formula D₂ = D¹+ √√20, D1
2x.
V₁=Velocity before the jump
9
D₁2
+
-Con.
4
Depth
before
the jump
=
= D₁
22
23
24
2526
27
28
29
309
15.0
15.03
15.95 16.86
17.78
18.71 19.63
20.56
21.50 22.43
15. 1
15.07
15.98
16.90
17.83
18.75
19.68
20.61
21.55 22.49
15.2
16.02
16.94
17.87
18.80
19.73
20.66
21.60 22.54
15.3
16.05
16.98
17.91
18.84
19.78
20. 71
21.65
22.60
15.4
16.09
17.02
17.95
18.88
19.82
20.76
21.71
22.65
15.5
16. 12
17.05
17.99
18.93
19.87
20.81
21.76 22.71
15.6
16. 16
17.09
18.03
18.97
19.91
20.86
21.81 22.76
15.7
16. 19
17. 13
18.07
19.01
19.96
20.91
21.86 22.82
15.8
16. 23
17. 17
18. 11
19.06
20.01
20.96
21.91
22.87
15.9
16. 26
17.20
18. 15
19. 10
20.05
21.01
21.96
22.92
16.0
16.30
17. 24
18. 19
19. 14
20.10
21.05
22.01 22.98
16. 1
16. 33
17.28
18. 23
19. 18
20. 14
21.10
22.06
23.03
16, 2
16. 37
17.31
18.27
19.22
20. 19
21.15
22.11
23.08
16.3
16.40
17.35 18.31
19.27
20. 23
21.20
22.16
23. 13
16.4
16. 43
17.39
18.35
19.31
20.27
21.24
22.21
23. 19
16.5
16.47 17.42 18.38
19.35 20.32
21.29
22.26
23. 24
16.6
17.46 18.42 19.39 20.36
21.34
22.31
23.29
16.7
16.8
16.9
17.56 18.54
17.49 18.46 19.43 20.40
17.53 18.50 19.47 20.45 21.43
19.51
21.38
22.36
23.34
22.41
23.39
20.49 21.47
22.46
23.45
17.0
17.60 18.57
17.1
17.63
17.2
17.67
19.55 20.53 21.52
18.61 19.59 20.58 21.56
18.65 19.63
22.51
23.50
22.55 23.55
20.62
21.61
22.60 23.60
17.3
17.70 18.69
19.67
20.66
21.65 22.65
23.65
17.4
17.74
18.72
19.71
20.70
21.70 22.70
23.70
17.5
17.77
18.76
19.75
20.74
21.74
22.74 23.75
17.6
17.81 18.80
19.79
20.79 21.79
22.79
23.80
17.7
17.84 18.83
19.83
20.83 21.83
22.84
23.85
17.8
17.87
18.87
19.87
20.87
21.87
22.88
23.89
17.9
17.91
18.90
19.91
20.91
21.92
22.93
23.94
18.0
17.94
18.94
19.94
20.95
21.96
22.98 23.99
18.1
18.98
19.98
20.99
22.00
23.02 24.04
18.2
19.01
20.02 21.03
22.05
23.07
24.09
18.3
19.05
20.06
21.07
22.09
23. 11
24. 14
18.4
19.08
20.09
21.11
22. 13
23. 16
24. 18
18.5
19. 12
20.13
21.15
22.18
23.20
24. 23
18.6
19. 15
20.17
21. 19
22.22
23. 25
24. 28
18.7
19. 19
20. 21
21.23
22.26
23.29
24. 33
18.8
19. 22
20.24
21.27
22.30
23. 34
24.37
18.9
19.25
20.28
21.31 22.34
23.38
24.42
19.0
19.29
20.32 21.35
22.38
23.42
24. 47
19. 1
19.32 20.35 21.39
22.43
23.47
24.51
19.2
19.36 20.39 21.43
22.47
23. 51
24. 56
19.3
19.39 20.42 21.46
22.51
23.55
24.60
19.4
19.42 20.46 21.50
22.55
23.60
24. 65
19.5
19.46
20.50
21.54
22.59
23. 64
24.70
19.6
20.53
21.58
22.63
23.68
24.74
19.7
19.8
20.57 21.62 22.67
20.60 21.65 22.71 23.77
23.73
24.79
24.83
19.9
24.88
20.64
22.75 23.81
21.69
HYDRAULIC TABLES
39
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂= +
D₁ 20,2D, D₁2
+
2 V g
-Con.
4
Depth
before
v=Velocity before the jump

the jump
=D₁
31
32 2 3
33
34 35
36
37
38 39 40
15.0
23.37 24.30
15.1
23.42
24.37
25.24
25.31
26.18 27.13
28.07
29.01
29.96
30.91
31.85
26.25
27.20
28. 14
29.09
30. 04
30.99
31.94
15.2 23.48
24.43 25.37
26.32
27.27
28. 22
29.17
30.12
31.07
32.03
15.3 23.54
24.49
25.44
26.39
27.34
28. 29
29.24
30.20
31. 15
32.11
15.4 23.60
24. 55
25.50
26.45
27.41
28.36
29.32
30.28
31.24
32.20
15.5 23.66
24.61
25. 56
26.52
27.48
28.43
29.39 30.35
31.32
32.28
15.6 23.71
24. 67
25.63
26.59
+
27.55
28.51
29.47
30.43
31.40
32.36
15.7 23.77
24.73
25.69 26.65
27.61 28.58
29.54 30.51 31.48
32.45
15.8
23.83 24.79
25.75 26.72
27.68
28.65
29.62
29.62 30.59 31.56
32.53
15.9
23.88 24.85
25.81
26.78
27.75
28.72
29.69 30.66
31.64
32.61
16.0
23.94
24.91
25.88
26.85
27.82
28.79
29.76
30.74
31.72
32.69
16. 1
24.00 24.97
25.94 26.91
27.88
28.86
29.84
30. 82
31.80
32.78
16,2
24.05
25.02
26.00 26.97 27.95
28.93 29.91
30.89
31.87
32.86
16.3
24.11
25.08
26.06
27.04
28.02
29.00
29.98
30.97 31.95
32.94
16.4
24. 16
25. 14
26. 12
27.10
28.09
29.07
30.06
31.04
32.03
33.02
16.5
24. 22
25.20
26. 18
27.17
28. 15
29.14
30. 13
31.12
32. 11
33.10
16.6
24. 27
25. 26
26.24
27.23
28. 22
29.21
30.20
31. 19
32. 19
33. 18
16.7
24. 33
25. 31
26.30
27.29
28.28
29.28
30.27
31.27
32. 26
33.26
16.8
24.38
25.37
26.36
27.35
28.35
29.34 30.34
31.34
32.34
33.34
16.9
24. 43
25.43
26.42
27.42
28.41
29.41
30.41
31.41
32.42
33.42
17.0
24.49
25.48
26.48
27.48
28.48
29.48
30.48 31.49
32.49
33.50
17.1
24. 54
25.54
26. 54
27.54
28. 54
29.55
30.55 31.56
32.57
33.58
17.2
24.59
25.59
26.60
27.60
28. 61
29.61
30.62
31.63 32.64
33.65
17.3
24. 65
25. 65
26.66
27.66
28.67
29.68
30.69 31.70 32.72
33.73
17.4
24.70
25.71
26. 71
27.72
28.73
29.75 30.76 31.78 32.79
33.81
17.5
24.75 25.76
26. 77
27.78
28.80 29.81 30.83 31.85
32.87
33.89
17.6 24.80 25.82
26.83
27.84
28.86
29.88
30.90 31.92
32.94
33.96
17.9
17.7 24.86 25.87
17.8 24.91 25.92
24.96 25.98
26.89 27.90 28.92
29.94
30.97
31.99
33.01
34.04
26.94 27.96
28.98
30.01
31.03
32.06
33.09
34. 12
27.00 28.02 29.05
30.07
31.10
32. 13
33. 16
34. 19
18.0
25. 01
26.03
27.06
28.08
29.11
30. 14
31.17
32.20
33.23
34. 27
18. 1
25.06
26.09
27.11
28. 14
29. 17
30.20
31.23
32.27
33.31
34.34
18.2
25. 11
26. 14
27. 17
28.20
29.23
30.27 31.30
32. 34
33.38
34.42
18.3
25. 16
26. 19
27.22
28.26 29.29
30.33 31.37
32.41
33.45
34.49
18.4
25. 21
26.25
27.28
18.5
25. 26
26.30 27.33
18.6
25. 31
18.7
25.36
18.8 25.41
18.9
25.46
28.32 29.35
28.37 29.41 30.46 31.50
26.35 27.39 28.43 29.47 30.52
26.40 27.44 28.49 29.53 30.58
26.45 | 27.50 28.55 29.59
26. 51 27.55 28.60 29.65 30.71
30.39 31.43
32.48
33.52
34.57
32.55
33.59
34.64
31.57 32.61 33.66
34.71
31.63
32.68
33.73
34.79
30.64
31. 70
31.70
32.75 33.80
34.86
31.76
32.82
33.87. 34.93
19.0
25.51
26.56
19. 1
25. 56
26.61
19.2
27.61 28.66 29.71 30.77
27.66 28.72 29.77 30.83 31.89
25. 61 26.66 27.72 28.77 29.83 30.89
19.3 25.66 26.71 | 27.77 28.83
19.4 25.70 | 26.76 27.82 28.88
31.83
32.88
33.94 35.01
32.95
34.01
35.08
31.95
33.02
34.08
35. 15
29.89 30.95
32.02
33.09
34. 15
35. 22
29.95
31.01
32.08
33. 15
34.22
35.29
19.5 25.75 26.81
19.6 25.80 26.86
19.7 25.85 26.91
19.8 25.90 26.96
27.88 28.94 30.01
31.08
32.15
33.22
34.29
35.37
27.93 29.00
27.98 29.05
28.03 29.11
30.06
31. 14
32. 21
33.28
34.36
35.44
30.12
31.20
32.27
33.35
34.43
35. 51
30.18
31.26
32.33
33.41
34.49
35.58
19.9
35.65
•
25.94 27.01
34.56
28.09 29.16
33.48
30. 24
32.40
31. 32
40
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂=D¹+
D2:

2 V g
2v2D₁ D₁2
+
4
-Con.

v₁=Velocity before the jump
Depth
before


the jump
= Di
41
42
43
44
45
46
47
48
49
15. 0
32.80
33.75
34.70
35.65 36.60
37.56
38.51
39.46
40.42
15. 1
32.89
33.84
34.80
35.75
36.71
37.66
38.62 39.57
40.53
15. 2
32.98
33.94
34.89
35.85
36.81
37.76
38.72 39.68
40.64
15. 3
33.07
34.03
34.99 35.95
36.91
37.87
38.83
39.79
40.76
15. 4
33. 16
34. 12
35.08
36.04
37.01
37.97
38.94
39.90
40.87
15. 5
33. 24
34.21
35. 17
36. 14
37. 11
38.07
39.04
40.01
40.98
15.6
33.33
34.30
35. 27
36.23
· 37.20
38. 17
39.15
40. 12
41.09
15.7
33.42 34.39
35.36
36.33
37.30
38.28
39.25
40.22
41.20
15.8 33.50 34.48
35.45
36.42
37.40
38.38
39.35
40.33
41.31
15.9
33.59
34.56 35.54
36.52
37.50 38.48
39.46
40.44
41.42
16.0
33.67
34.65
35.63 36.61
37.60
38.58 39.56
40.54
41.53
16. 1
33.76
34.74
16. 2
33.84
34.83
16. 3
33.93
34 91
16. 4
34.01
35.00
35.72 36.71 37.69
35.81 36.80 37.79
35.90 36.89 37.88
35.99 36.99
38.68.
39.66
40.65
41.64
38.78 39.77 40.75
41.74
38.88 39.87 40.86
41.85
37.98
38.97
39.97
40.96
41.96
16.5
34.09
35.09
36.08
37.08
38.07
39.07
40.07
41.07
42.07
16.6
34. 18
35. 17
36.17
37.17
38. 17
39. 17
40. 17
41. 17
42.17
16.7
34.26
35.26
36.26 37.26
38.26
39.27
40.27
41.27
42.28
16.8
34.34.
35 34
36.35 37.35
38.36
39.36
40.37
41.38
42.38
16.9
34.42
35.43
36.44
37.44
38.45
39.46
40.47
41.48 42.49
17.0
34.50
35. 51
36.52
37.53 38.54
39.56
40.57
41.58
42.59
17. 1
34.59
35.60
36.61
37.62
38.64 39.65
40.67
41.68
42.70
17.2
34.67 35.68 36.70
37.71
38.73
39.75 40.76
41.78
42.80
17.3
34.75 35.76
36.78
37.80
38.82
39.84
40.86
41.88
42.91
17.4 34.83 35.85
36.87
37.89
38.91
39.94
40.96
41.98
43. 01
17.5 34.91 35.93
36.95
37.98
39.00
40.03
41.06
42.08
43. 11
17.6 34.99 36.01
37.04
38.07
39.09
40. 12
41. 15
42. 18
43.21
17.7
35.07
36.09
37.12
38. 15
39. 18
40.22
41.25
42.28
43.32
17.8
35. 15
36. 18
37.21
38.24
39.27
40.31
41.34
42.38 43.42
17.9
35. 22
36. 26
37.29
38.33
39.36
40.40
41.44
42.48
43.52
18.0
35.30
36.34
37.38
38.41 39.45
40.49
41.53
42.58
43.62
18. 1
35.38
36. 42
37.46 38.50 39.54
40.59
41.63 42.67
43.72
18.2
35.46
36.50
37.54 38.59
39.63
40.68
41.72
42.77
43.82
18.3
35. 54
36.58
37.63 38.67
39.72
40.77
41.82
42.87
43.92
18.4
35. 61
36.66
37.71
38.76
39.81
40.86
41.91
42.96
44.02
18.5
35.69
36.74 37.79
38.84
39.90
40 95
42.00
43.06
44.12
18.6 35.77 36.82
37.87
38.93
39.98
41.04
42.10
43. 16
44.21
18.7 35.84 36.90
37.95
39.01
40.07
41. 13
42. 19
43. 25
44.31
18.8 35.92 36.98
38.04
39. 10
40.16
41.22
42.28
43.35
44. 41
18.9
35.99
37.05
38. 12
39. 18
40. 24
41.31
42.37
43. 44
44. 51
19.0
36.07
37.13
38.20
39.26
40.33
41.40
42.47
43.53
44.60
19. 1
36. 14
37.21
38.28
39.35
40.42
41.49
42. 56
43.63
44.70
19.2
36. 22
37.29
38.36
39.43
40.50
41.57
42.65
43.72
44.80
19.3
36.29
37.36 38.44
39. 51
40.59
41.66
42. 74
43.81
44.89
19.4
36.37
37.44 38.52
39.59
40.67
41.75
42.83
43.91
44.99
19. 5
36. 44
37.52 38.60
39.68 40.76
41.84
42.92
44.00
45.08
19.6
36.51
37.59 38.67
39.76
40.84
41.92
43.01
44.09
45. 18
19.7 36.59 37.67 38.75
39.84
40.92
42. 01
43. 10
44. 18
45. 27
19.8 36.66 37.75 38.83
39.92
41.01
42. 10
43. 19
44. 28
45.37
19.9 36.73 37.82 38.91
45.46
40.00
44.37
41.09
43.27
42. 18
HYDRAULIC TABLES
41
Depth
before
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
D₁ 2v12D1 + Di²-Con.

sections, given by the formula D₂=
2x.
g
4
v=Velocity before the jump
•
the jump
= Di
50
52
54
56
58
60
62
26
64
15.0
41.37
43.28
45. 19
47.10
49.02
50.93
52.85
54.77
15.1
41.49
43.40
45.32
47. 24
49. 16
51.08
53.00
54.93
15.2
41.60
43.53
45.45
47.37
49.30
51. 23
53. 16
55.09
15,3
41.72
43.65
45.58
47.51
49 44
51.37
53.31
55.25
15.4
41.83
43.77
45.70
47.64
49.58
51.52
53.46
55.40
15.5
41.95
43.89
45.83
47.77
49.72
51.67
53.61
55.56
15. 6
42.06
44.01
45.96
47.91
49.86
51.81
53.76
55.72
15.7
42. 18
44. 13
46.08
48.04
50.00
51.95
53.91
55.87
15.8
42. 29
44. 25
46. 21
48. 17
50. 13
52.10
54.06
56.03
15.9
42.40
44.37
46.33
48.30
50. 27
52.24
54. 21
56. 19
16.0
42.51
44.48
46.46
48.43
50.41
52.38
54. 36
56.34
16. 1
42.62
44.60
46.58
48.56
50.54
52.52
54.51
56.49
16.2
42.74
44. 72
46.70 48.69
50.68
52.67
54.66
56. 65
16.3
42.85
44.84
46.83
48.82
50.81
52.81
54.80
56.80
•
16.4
42.96
44.95
46.95
48.95
50.95
52.95
54.95
56.95
16.5
43. 07
45. 07
47.07
49.07
51.08
53.09
55.09
57.10
16. 6
43. 18
45. 18
47.19
49.20
51. 21
53.22
55. 24
57.25
16.7
43. 28
45.30
47.31
49.33
51.34
53.36
55.38
57.40
16.8
43.39
45.41
47.43
49.45
51.48
53.50
55. 53
57.55
16.9
43.50
45.53
47.55
49.58
51.61
53. 64
55. 67
57.70
17.0
43.61
45. 64
47.67
49.70
51.74
53.78
55.81
57.85
17.1
43.72
45.75
47.79
49.83
51.87
53.91
55.96
58.00
17.2
43.82
45.86
47.91
49.95
52.00
54.05
56. 10
58. 15
17. 3
43.93
45.98
48.03
50.08
52. 13
54. 18
56. 24
58.29
17.4
44. 03
46.09
48. 14
50.20
52. 26
54.32
56.38
58.44
17.5
44. 14
46. 20
48.26
50.32
52.39
54. 45
56.52
58. 59
17.6
44. 24
46.31
48.38
50.44
52.51
54.59
56.66
58.73
17.7
44.35
46.42
48.49
50.57
52.64
54.72
56.80
58.88
17.8
44. 45
46.53
48.61
50.69
52. 77
54.85
56.94
59.02
17.9
44.56
46.64
48.72
50.81
52.90
54.98
57.07
59. 17
18.0
44.66
46.75
48.84
50.93
53.02
55. 12
57. 21
59.31
18. 1
44.76
46.86
48.95
51.05
53. 15
55. 25
57.35
59.45
18.2
44.87
46.97
49.07
51. 17
53. 27
55.38
57.49
59.59
18.3
44.97
47.07
49. 18
51. 29
53.40
55. 51
57.62
59.74
18.4
45. 07
47. 18
49.29
51.41
53.52
55. 64
57.76
59.88
18.5
45. 17
47.29
49.41
51.52
53.65
55.77
57.89
60.02
18.6
45. 27
47.39
49.52
51.64
53.77
55.90
58.03
60. 16
18.7
45.37
47.50
49.63
51.76
53.89
56.03
58. 16
60.30
18.8
45.47
47.61
49.74
51.88
54. 01
56. 15
58. 29
60.44
18.9 45.57
47.71
49.85
51.99
54. 14
56. 28
58.43
60.58
19.0
45.67
47.82
49.96
52. 11
54.26
56. 41
58.56
60.71
19.1
45.77
47.92
50.07
52.23
54.38
56.54
58.69
60.85
19.2
45.87
48.03
50. 18
52.34
54.50
56.66
58.83
60.99
19.3
45.97
48. 13
50.29
52.46
54.62
56.79
58.96
61.13
19.4
46. 07
48.23
50.40 52.57 54.74
56.91
59.09
61.26
19.5
46. 17
48.34
50.51
52.68
54.86
57.04
59. 22
61.40
19.6
46. 27
48. 44
50.62
52.80
54.98
57. 16
59.35
61.54
19. 7
46.36
48.54
50.73
52.91
55. 10
57.29
59.48
61.67
19.8
46.46 48.65 50.83
53.02
55.22
57.41
59.61
61.80
19.9 46.56
48.75
50.94
53. 14
55.34
57.53
59.74
61.94
562180°
42
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D₂-D+

D2=
2
g
2v₁2 D₁, D₁2
+ -Con.
4
v1 Velocity before the jump
Depth
before

the jump
= Di
66
68
70
72
74
76
78
80
82
15.0
56.68
58.60
60.52
62.44
64.36
66. 29
68. 21
70.13
72.05
15, 1
56.85
58.78 60.70
62.63
64.56
66.48
68.41
70.34
72.27
15.2
15.3
57.02 58.95
57.18
60.88
62.81
64.75
66.68
68.62
70.55
72.49
59.12 61.06
63.00
64.94
66.88
68.82
70.76
72.70
15.4
57.35 59.29
61.24
63. 18
65. 13
67.07
69.02
70.97
72.92
15.5
57.51
59.46
61.41
63.36
65.32
67.27
69. 22
71.18
73. 13
15. 6
57.67
59.63
61.59
63.54
65.50
67.46
69.42
71.38
73.34
15.7
57.84
59.80
61.76
63.73
65.69
67.66
69.62
71.59
73.55
15.8
58.00
59.97
61.94 63.91 65.88
67.85
69.82
71.79
73.77
15.9 58.16
60. 13
62.11
64.09
66.06
68.04
70.02
72.00
73.98
16.0 58.32
60.30
62.28
64. 26
66. 25
68.23
70.22
72.20
74.19
16.1 58.48 60.47
62.45
64.44
66.43
68.42
70.41
72.40
74.39
16.2 58.64 60.63
62.63
64.62
66.62
68.61
70.61
72.61
74.60
16.3 58.80
60.80
62.80
64.80
66.80 68.80
70.80
72.81
74.81
16.4
58.96
60.96
62.97
64.97
66.98
68.99
71.00
73.01
75.02
18. 5
59.11
61.12
63.14
65. 15
67.16
69. 18
71. 19
73.21
75.22
16.6
59.27 61.29 63.31
65.32
67.34
69.36
71.38
73.41 75.43
16.7
59.43 61.45
63.47
65.50
67.52
69.55
71.58
73.60 75.63
16.8
59.58 61.61
63.64
65.67
67.70 69.74
71.77
73.80
75.84
16.9
59.74
61.77
63.81
65.85
67.88
69.92 71.96
74.00
76.04
17.0
59.89
61.93
63.97
66.02
68.06
70.10 72.15
74.19
76.24
17. 1
60.05
62.09
64.14
66. 19
68.24
70.29 72.34
74.39
76.44
17.2
60.20 62.25 64.31
66.36
68.42
70.47 72.53
74.58
76.64
17.3 60.35 62.41
64.47
66.53
68.59
70.65 72.72
74.78
76.84
17.4
60.50 62.57
64.63
66.70
68.77
70.84 72.90
74.97 77.04
17.5
60.66
62.73
64.80
66.87
68.94
71.02 73.09
75.17
77.24
17.6
60.81 62.88
64.96
67.04
69.12
71.20 73.28
75.36
77.44
17.7
60.96 63.04
65.12
67.21
69.29 71.38
73.46
75.55
77.64
17.8 61.11
63.20
65.28
67.37 69.46
71.56 73.65 75.74
77.83
17.9 61.26 63.35
65.45
67.54 69.64 71.73
73.83 75.93
78.03
18.0 61.41 63.51
18.1 61.56 63.66
18.2 61.70 63.81
65. 61
65.77
67.71 69.81 71.91
67.87 69.98 72.09 74.20
74.01
76.12
78.22
76.31
78.42
65.93
68.04 70.15
72.27 74.38
76.50
78.61
18.3 61.85 63.97
66.08
68.20
70.32 72.44 74.56
76.68
78.80
18.4 62.00 64.12
66.24
68.37
70.49
72.62
74.74
76.87
79.00
19.5 62.14 64.27
66.40
68.53
70.66
72.79
74.92 77.06
79.19
18.6 62.29 64.42 66.56
68.69
70.83
18.7 62.44 64.57 66.71
68.86
18.8 62.58
18.9
62.72
19.0
62.87
19.1
63.01
19.2
63. 16
19.3
63.30
19.4
65.47 67.64 69.82 71.99
63.44 65.62 67.80
19.5 63.58 65.77 67.95
19.6 63.72 65.91
69.98 72.16
72.97 75.10 77.24
71.00 73.14 75.28 77.43
64.72 66.87 69.02
71.16 73.31 75.46
77.61 79.76
64.88 67.03 69.18 71.33 73.49 75.64 77.79 79.95
65.02 67.18 69.34 71.50 73.66 75.82 77.98 80.14
65.17 67.34 69.50 71.66 73.83 75.99 78.16
80.33
65.32 67.49 69.66 71.83 74.00 76.17 78.34 80.52
74.17
74.34
79.38
79.57
76.35 78.52
80.70
76.52
78.71
80.89
70.14
72.32 74.51
76.70
78.89
81.08
68.10
70.29
72.48 74.68
76.87
79.07
81.26
19.7 63.86
66.06
68.25
19.8
64.00
66. 20
70.45 72.65 74.85 77.04 79.24
68.40 70.61 72.81 75.01
81.44
77.22 79.42 81.63
19.9
79.60 81.81
64. 14
77.39
66.35
75.18
68.56 70.76 72.97
HYDRAULIC TABLES
43
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=-21+
++
2
2v₁2D1, D12
+
-Con.
g
4
Depth
before
v1=Velocity before the jump
the jump
=D1
84
86
88
90
92
94
96
98
100
15.0
73.98
75.90
77.82
79.75
81.67
83.60
85.52
87.45 89.37
15. 1
74.20
76. 13
78.06
79.99
81.92
83.85
85.78
87.72
89.65
15.2
74.42
76.36
78.29
80.23
82.17
84. 11
86.04
87.98
89.92
15. 3
74.64
76.59
78.53
80.47
82.42
84.36
86.30
88.25
90. 19
15. 4
74.86
76.81
78.76
80.71
82.66
84.61
86.56 88.51
90.47
15. 5
75.08
77.04 79.00
80.95
82.91
84.86
86.82
88.78
90.74
15.6
75.30
77.27
79.23
81.19
83.15
85. 11
87.08
89.04
91.00
15.7
75.52 77.49
79.46
81.43
83.39
85.36
87.33
89.30
91. 27
15.8
75.74
77.71 79.69
81.66
83.64
85.61 87.59
89.56
91.54
15,9
75.96
77.94
79.92
81.90
83.88
85.86
87.84
89.82
91.81
16.0
76.17 78.16
80. 14
82.13
84. 12
86. 11
88.09
90.08
92.07
16. 1
76.39
78.38
80.37
82.36
84.36
86.35
88.35 90.34
92.34
16.2
76.60
78.60
80.60
82.60
84.60
86.60
88.60
90.60
92.60
16.3
76.81
78.82
80.82
82.83
84.84
86.84
88.85
90.85
92.86
16. 4
77.03
79.04 81.05
83.06
85.07
87.08
89.10
91. 11
93. 12
16.5
77.24
79.26 81.27
83.29
85.31
87.33
89.35
91.36
93.38
16.6
77.45
16.7
79.47 81.50
77.66 79.69
83.52 85.54 87.57 89.59
91.62
93.64
81.72
83.75
85.78
87.81
89.84
91.87
93.90
16.8 77.87
79.90
81.94
83.98
86.01
88.05
90.08
92.12
94. 16
16.9 78.08
80.12
82. 16
84.20
86.24
88.29
90.33
92.37
94.42
17.0 78.29 80.33
82.38
84.43
86.48
88.52 90.57
92.62
94.67
17.1
78.49 80.55
82.60
84.65
86.71
88.76 90.82
92.87
94.93
17.2 78.70 80.76 82.82
84.88
86.94
89.00
91.06
93. 12
95. 18
17.3
78.91
80.97
83.04
85. 10
87.17
89.23
91.30
93.37
95.43
17.4
79.11
81. 18
83.25
85.32
87.40
89.47
91.54
93.61
95.69
17.5
79.32
81.39
83.47
85.55
87.62
89.70 91.78
93.86
95.94
17.6
79.52
81.60
83.69
85.77 87.85
89.94
92.02
94. 10
96. 19
17.7
79.72 81.81
83.90
$5.99
88.08 90.17
92.26
94. 35
96.44
17.8
79.93 82.02
84. 11
86.21
88.30 90.40
92.50
94.59
96.69
17.9
80.13 82.23
84.33
86.43
88.53
90.63 92.73
94.83
96.94
18.0
80.33
82.43 84.54
86.65
18.1
80.53 82.64
84.75
88.75
86.86 88.98
18.2
80.73 82.85
84.96
87.08
90.86
91.09
89.20 91.32
95.08
92.97
93.20 95.32 97.43
97.18
93.44
95.56
97.68
18.3
80.93 83.05
85. 17
87.30
89.42
91.55
93.67
95.80
97.92
18.4
81. 13
83.25
85.38
87.51
89.64
91.77
93.90
96.03
98.17
18.5
81.32
83.46
85.59
87.73
89.86
92.00
94. 14
96. 27
98.41
18.6
81.91 84.06
81.52
18.7 81.72 83.86 86.01
18.8
18.9 82.11 84.26
83.66 85.80
87.94
90.08
92. 22
94.37
96.51
98.65
88. 16
90.30
92.45
94.60
96.75
98.89
86.22
88.37
90.52
92.67
94.83
96.98
99. 14
86.42
88.58
90.74
92.90
95.06
97.22
99.38
19.0 82.30 84.46 86.63
88.79
90.96
93. 12
95.28
97.45
99.62
19.1 82.50 84.66 86.83
89.00
91.17
93.34
95.51
97.68
99.85
19.2 82.69 84.86
87.04
89.21
91.39
93.56
95.74
97.92
100. 1
19.3
82.88 85.06 87.24
89.42
91.60
93.78
95.97
98.15
100. 3
19.4
83.07 85.26 87.44
89.63
91.82
94.00
96. 19
98.38
100.6
19. 5
83.27
85.46 87.65
89.84
92.03
94.22
96.42
98.61
100.8
19.6
83.46
85.65 87.85
90.05
92.24
94.44
96.64
98.84
101. 0
19.7
83.65
85.85 88.05
90.25
92.46
94.66
96.86
99.07
101, 3
19.8
83.84 86.04 88.25
90.46
92.67
94.88 97.09
99.30 101.5
19.9 84.02 86.24 88.45
99.52 101.7
90.66
95.09 97.31
92.88
44
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁
2
2 +
2v₁2D1 D₁2
+
Con.
g
4
Depth
before
01 Velocity before the jump


the jump
= Di
105
110
115
120
125
130
135
140
145
150
15.0
94. 19
99.01
103.8
108.6 113.5
118.3
123.1
127.9
132.7
137.6
15.1
94.48
99.31
104. 1
109.0
113.8
118.7
123.5
128.3
133. 2
138.0
15. 2
94.77
99.62 |
104. 5
109.3
114.2
119.0
123.9
128.7
133.6
138.4
15.3
95.06
99.92
104.8
109.7 114.5
119.4
124, 3
129.1
134.0
138.9
15.4
95.34 |100.2
105.1
110.0 114.9 119.8
124.6
129.5 134.4
139.3
15. 5
95.63 100.5
105.4
110.3
115.2 120.1
125.0
129.9 134.8
139.7
15. 6
95.91 100.8
105.7
110.7
115.6
120.5 125.4
130.3
135.2
140.2
15.7
96.20 101.1
106. 1
111.0
115.9
120.8
125.8
130.7
135.6
140.6
15.8 96.48 101.4
106.4
111. 3
116.3
121.2
126. 2
131. 1
136.0
141.0
15.9
96.76 101.7
106.7
111.6
116.6
121.6
126.5
131.5
136.5
141.4
16.0 97.04 102.0
107.0
112.0
116.9 121.9
126.9
131.9
136.9
141.8
16.1
97.32 102.3
107.3
112.3
117.3
122.3
127.3 132.3
137.3
142.3
16.2
97.60 102.6 107.6 112.6
117.6
122.6
127.6 132.7
137.7
142.7
16. 3
97.88 102.9
107.9
112.9 118.0
16.4
98.16 103. 2
108.2
113.3
118.3
123.0 128.0
123.3
133.0
138. 1
143. 1
128.4
133. 4
138.5
143.5
16.5
98.43 103.5
108.5
113.6
118.6 123.7
128.8
133.8
138.9
143.9
16.6 98.71 103.8 108.8
113.9
119.0 124.0
129.1
134. 2
139.3
144. 3
16.7 98.98 104.1
109.1
114. 2
119.3
124.4 129.5
134.6
139.7
144.7
16,8
99.25 104. 3
109.4
114.5
119.6 124.7
129.8
134.9
140.0
145.2
16.9 99.53 104.6
109.7 114.9
120.0
125.1
130.2 135.3
140.4
145.6
17.0 99.80
104.9
110.0 115.2
120.3
125.4
130.6
135.7
140.8
146.0
17.1 100.1
105. 2
110.3 115.5 120.6
125.8
130.9
136. 1
141.2
146.4
17.2 100.3
105.5
110.8
115.8
121.0
126. 1
131.3
136.4
141.6
146.8
17.3 100.6
105.8
110.9
116. 1
121.3
126.5
131.6
136.8 142,0 147.2
17.4 100.9 106. 1
111.2
116. 4
121.6
126.8
132.0
137.2 142.4
147.6
17.5 101.1 106.3
111.5 116.7
121.9
127.2
132. 4
137.6
142.8
148.0
17.6 101.4 106.6
111.8
117.1
122.3 127.5
132.7
137.9
143.2
148. 4
17.7 101.7 106.9
112. 1
117.4
122.6 127.8
133. 1
138.3 143.5
148.8
17.8 101.9 107.2
112.4
117.7
122.9
128.2
133.4
138.7
143.9
149.2
17.9 102.2 107.5
112.7
118.0
123. 2
128.5
133.8
139.0
144.3
149.6
18.0 102.5 107.7
113.0
118.3 123.6
128.8
134. 1
139.4
144.7
150.0
18.1 102.7 108.0
18.2 103.0 108.3
18.3103.2 108.6
18.4 103.5 108.8
18.5 103.8 109.1
18.6 104.0 109.4
18.7 104.3 109.6
18.8 104.5 109.9
18.9 104.8 110.2
113.3 118.6
123.9
129.2
134.5
139.8
145. 1
150.3
113.6 118.9
124.2 129.5
134.8
140.1
145. 4
150.7
113.9 119.2
124.5
129.8
135. 2
140.5
145.8
151.1
114.2 119.5
124.8
130.2
135.5
140.8
146.2
151, 5
119.8
114.4
114.7 120.1
115.0 120.4
115.3 120.7 126.1 131.5
115.6 121.0 126.4 131.8
125. 1
130.5
135.8
141.2
146.6
151.9
125.5
130.8
136. 2
141.6 146.9
152.3
125.8
131.2
136.5
141.9
147.3
152.7
136.9 142.3 147.7
153.1
137.2
142.6
148.0
153.4
19.0 105.0 110.4
115.9
121.3
126.7
132.1
137.6
143.0
148. 4
153.8
19.1 105.3 110.7
116. 1
121.6
127.0 132.5
137.9 143.3
148.8
154.2
19.2 105.5 111.0
116. 4
121.9
127.3
132.8
138.2
143.7
149.1
154.6
19.3 105.8 111.2
116.7
122.2
127.6
133. 1
138.6
144.0
149.5
155.0
19.4 106.0 111.5
117.0
122. 5
127.9
133.4
138.9
144. 4
149.9
155.3
19.5 106.3 111.8
19.6 106.5 112.0
19.7 106.8 112.3
19.8 107.0 112.6
117.3 122,8
128.2
133.7
139.2
144.7 150.2
155.7
117.5 123.0
128. 6
134. 1
139.6
145.1 150.6
156. 1
117.8 123.3
128.9
134. 4
139.9
145.4 150.9
156.5
118.1
123.6 129.2
134.7
140.2 145.8
151.3 156.8
19.9 107.3 112.8
151.7 | 157.2
118.4
140.6 146.1
123.9 129.5
135.0
HYDRAULIC TABLES
45
sections, given by the formula D₂=
Depth
before
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
2 V
20₁² D₂+
01=Velocity before the jump
D₁²
-Con.
4
D₁
+ √
g

the jump
= Di
25
26
27
28
29
30
31
32
33
34
20.0
20.67 21.73
22.79
23.85
24.92
25.99
27.06
28. 14
29.21
20.1
20.71 21.77
22.83
23.89
24.96
26.04
27.11
28.19
29.27
20.2
20.74 21.80
22.87
23.94
25.01
26.08
27.16
28.24
29.32
20.3
20.78 21.84
22.91
23.98
25.05
26. 13
27.21 28.29 29.38
20.4
20.81 21.88
22.95
24.02
25. 10
26.18
27.26
28.34 29.43
20.5
20.84 21.91
22.99
24.06
25. 14
26.22
27.31
28.39 29.48
20.6
20.88 21.95
23.02
24.10
25.18
26. 27
27.36
28.45
29.54
20.7
20.91 21.99
23.06
24. 14
25. 23
26.31
27.40 28.50
29.59
20.8
20.95 22.02
23.10
24.18
25.27
26.36
27.45 | 28.55
29.64
20.9
20.98 22.06
23.14
24. 22
25.31
26.40
27.50 | 28.60
29.70
21.0
21.01
22.09
23.18
24. 26
25.36
26.45
27.55 28.65
29.75
21. 1
21.05
22. 13
23.21
24.30
25.40
26.49
27.59 28.70
29.80
21.2
22.16
23. 25
24. 34
25.44 26.54
27.64
28.75
29.85
21.3
22.20
23.29
24.38
25.48
26.58 27.69
28.80
29.90
21.4
22.23 23.33
24.42
25.53
26.63 27.74
28.84
29.96
21. 5
22.27 23.36
24.46
25.57
26.67 | 27.78
28.89
30.01
21.6
21.7
22.34 23.44
21.8
22.37 23.48
22.30 23.40 24.50
24.54
24.58
25.61 26.72 27.83
28.94
30.06
25.65❘ 26.76
27.87
28.99
30.11
25.69 26.80 27.92 29.04
30.16
21.9
22.41 23.51
24.62
25.73
26.85 27.97 29.09
30.21
22.0
22.44 23.55
24.66
25.77
26.89
28.01 29.14
30.26
22.1
22.48 23.59
24.70 25.82
26.94 28.06 29.18
30.31
22.2
22.51 23.62
24.74
25.86 26.98
28.10
29.23
30.36
22.3
22.54 23.66
24.78
25.90 27.02
28. 15
29.28
30.41
22.4
22.58
23.69
24.81
25.94 27.06
28. 19
29.33
30.46
22.5
22.61
23.73
24.85
25.98
27.11
28.24
29.37
30.51
22.6
22.65 23.77
24.89
26.02
27.15
28.28
29.42 30.56
22.7
22.68 23.80
24.93
26.06
27. 19
28.33 29.47
30.61
22.8
23.84 24.97
26.10
27.23
28.37 29.52
30.66
22.9
23.87 25.00
26. 14
27.28
28.42 29.56
30.71
23.0
23.91 25.04
26.18
27.32 28.46 29.61
30.76
23. 1
23.94
25.08
26. 22
27.36 28.51 29.65
30.81
23.2
23.98
25. 11
26.26
27.40 28.55 29.70
30.85
23.3
24.01
25.15
26.29
27.44 28.59
29.75
30.90
23.4
24.05
25. 19
26.33
27.48
28.64 29.79
30.95
23.5
24.08
25. 22
26.37
27.52 28.68 29.84
31.00
23.6
24. 11
25.26
26.41
27.57 28.72 29.88
31.05
23.7
24. 15
25.30
26.45 27.61
28.77 29.93
31.09
23.8
24. 18
25.33
26.49 27.65
28.81
29.97
31. 14
23.9
24. 22
25.37
26.53 27.69
28.85
30.02
31.19
24.0
24. 25
25.41
26.57❘ 27.73 28.89
30.06
31.24
24.1
24. 28
25.44 26.60 27.77
28.94
30. 11
31.28
24.2
24.32
25.48 26.64 27.81
28.98
30. 15
31.33
24.3
24. 35
25.51
26.68 27.85
29.02 30.20
31.38
24.4
24.39
25.55
26.72 27.89
29.06 | 30.24
31.42
24.5
24.6
24.7
25.58 26.75 27.93
25.62
25.65 26.83 28.01
29.11 30.29
31.47
26.79 27.97 29.15 30.33
31.52
29.19
30.37
31.56
24.8
25.69 26.87 28.05
29.23
30.42
31.61
24.9
31.65
25.72 26.90 28.09 29.27 30.46
46
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂= +
D₁ 2v₁2D₁, D₁2
+
2
-Con.
g
Depth
before
V₁=Velocity before the jump

the jump
= Di
35 36
37
38
39
40
41
42
43
44
20.0 30.29 31.38
32.46
33.54
34.63
35.72 36.81
37.90
38.99
40.08
20.1
30.35 31.43
32.52
33. 61
34.70
35.79
36.88
37.97
39.06
40.16
20.2 30.41
31.49
32.58
33.67
34.76 35.86
36.95
38.05
39. 14
40. 24
20.3 30.46 31.55 32.64
33.74
34.83
35.93 37.02
38.12
39. 22
40.32
20.4 30.52 | 31.61
32.70
33.80
34.90
35.99 | 37.09
38. 19
39.30
40.40
20.5 30.58 31.67
32. 77
33.86
34.96
36. 06
37.16
38.27
39.37
40.48
20.6 30.63 31.73
32.83
33.93
35. 03
36. 13
37. 24
38.34 39.45
40.56
20.7 30.69 31.79
32.89
33.99
35.09
36. 20
37.31
38.41 39.52
40.63
20.8
30.74 | 31.84
32.95
34.05
35.16
36. 27
37.38
38.49 39.60
40.71
20.9 30.80 31.90
33.01
34. 12 | 35. 22
36. 33
37.45
38.56
39.67
40.79
21.0 30.85 31.96 33.07
34. 18
35.29 36.40
37.52
38.63 39.75
40.87
21.1
30.91 | 32.02 | 33. 13
34. 24 |
35. 35 | 36.47
37.59
38.70
39.82
40.94
21.3
30.96 | 32.07 | 33. 19
34.30 35.42 36.54
37.66
38. 78
39.90
41.02
21.3
31.02 | 32. 13
33.25
34.36
35.48
36.60
37.72
38.85
39.97
41. 10
21. 4
31.07
32. 19
33.30
34.42
35. 55
36.67
37.79
38.92
40.05
41. 18
21.5
31. 12
32. 24
33.36
34.49
35.61 | 36. 74
37.86
38.99
40.12
41.25
21.6
31. 18
32.30
33.42
34. 55
35. 67
36.80
37.93
39.06
40. 19
41.33
21.7
31.23
32.36
33.48
34.61
35.74
36.87
38.00
39. 13
40. 27
41. 40
21.8 31.28 32.41
33.54
34.67
35.80
36.93
38.07
39.20
40.34
41.48
21.9❘ 31.34
32.47 33.60
34.73
35.86
37.00
38. 13
39. 27
40.41
41.55
22.0
31.39
32.52 | 33.65
34.79
35.93
37.06
38. 20
39.34 | 40.49
41.63
22. 1
31.44
32. 58
33.71
34.85
35.99
37. 13
38. 27
39.41 40.56
41.70
22.2
31.50
32. 63
33.77 34.91
36.05
37.19
38.34
39. 48
40.63
41.78
22.3
31.55
32.69
33.83
34.97
36. 11
37.26 | 38.40 |
39. 55
40.70
41.85
22.4 31.60
32. 74
33.88
35. 03
36. 17
37.32 | 38.47
39.62 | 40.77
41.93
22.5 31.65
32.80 33.94
35.09
36. 23
37.38
38.54
39.69 40.84
42.00
22.6 31.70
32.85 | 34.00
35. 15
36.30
37.45
38.60
39.76
40.91
42.07
22.7 31.76
32.90 34.05
35. 20
36. 36 | 37. 51
38.67 | 39.83
40.99
42. 15
22.8 31.81
32.96
34. 11
35. 26
36.42 37.58
38.73 | 39.89
41.06
42.22
22.9 31.86
33. 01
34. 17
35.32
36.48 | 37.64
38.80 39.96
41. 13
42. 29
23.0 31.91
33.06
34. 22 |
35. 38
36.54 37.70
38.87
40.03
41. 20
42.36
23.1 31.96
33. 12
34. 28
35.44
36.60 37.76
38.93
40. 10
41. 27
42. 44
23.2
32.01
33. 17
34.33
35.50
36.66 | 37.83
39.00
40. 17
41.34
42.51
23.3
32.06
33.22
34.39
35.55
36.72 37.89
39.06
40. 23
41.41
42.58
23. 4
32. 11
33.28
34.44
35. 61
36.78
37.95
39. 12
40.30
41.48
42.65
23.5
32. 16
33.33 34.50
35. 67
36.84
38.01
39.19
40.37
41.54
42.72
23.6
32. 21
33.38 34.55
35.72 36.90
38.07
39.25
40.43
41. 61
42.80
23.7
32. 26
33.43 34.61
35.78 | 36. 96
38. 14
39.32 40.50
41.68
42.87
23.8
32.31
33.49 34.66
35.84 | 37.02 | 38. 20
38. 20
39.38 40.56
41.75
42.94
23.9
32.36
33.54 | 34.71
35.89
37.08
38.26
39.44
40.63
41.82
43. 01
24.0
32. 41
24. 1
32.46
24.2
33.59 34.77 35.95
33.64
32.51 33.69 34.88 36.06
37. 13
38.32
39.51
40.70
41.89
43.08
34.82 | 36.01 | 37. 19
38.38
39.57 40.76
41.95
43. 15
37.25
38.44
39.63 40.83
42.02
43.22
24.3
32.56 33.74 34.93
36.12
37.31
38.50
39.70 | 40.89
42.09
43.29
24.4
32.61 33.79
34.98 36. 17
37.37
38.56 39.76 40.96
42. 16
43.36
24.5
32.66 33.84
35.04
36. 23
37.42 | 38.62 | 39.82
41.02
42. 22
43.43
24. 6
32.70 33.89
35.09
36.28
37.48
38.68 39.88
41.08
42. 29
43.49
24.7
32.75 33.95
35. 14
36.34 37.54
38.74
39.94
41. 15
42.36
43.56
24.8
32.80 34.00
35. 19
37.60
36.39
38.80
40.01
41. 21
42.42
43.63
24.9
43.70
32.85 34.05
42.49
35. 25 36.45 37.65 38.86 40.07
41.28
HYDRAULIC TABLES
47
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁
2
+
/2v₁²D₁, D₁²
+
-Con.
g
4
v1 Velocity before the jump
Depth
before
the jump
=D₁
45
46
47
48 49 50
52
54
56
58
20.0
41. 17
42. 27
43.36
44. 46
20.1
41.26
42.35
43.45
44.55
20.2 41.34
42.44
43.54 44.64
20.3
41.42
42.52
20.4
41.50
42. 61
45.55 46.65 48.85
45.65 46.75 48.95
45.74 46.84 49.05
43.63 44.73 45.83 46.94 49.15
43.71 44.82 45.93
51.05 53.25
55.45
51.15 53.36
55. 57
51.26
53.47
55.69
51.37
53.58
55.80
47.03 49.25
51.47 53.69
55.92
20.5 41.58 42.69
43.80 44.91
46.02
47.13
49.35
51.58 53.81
56.04
20.6 41.66 42.77 43.89
20.7 41.75 42.86 43.97
45.00
46. 11
47.22
49.45
51.68
53.92
56.15
45.09
46.20
47.32
49.55
51.79
54.02
56.27
20.8 41.83 42.94
44.06
45. 17
46.29
47.41
49.65
51.89
54. 13
56.38
20.9
41.91
43.02
44. 14
45.26 | 46.38
47.50
49.75
51.99
54.24
56.49
21.0
41.99
43. 11
44.23
45.35 46.47
47.60 49.85
52.10
54.35
56.61
21.1
42.07
43.19
44.31
45.44
46.56
47.69 | 49.94
52.20 54.46
56.72
21. 2
42. 15
43.27
44.40
45. 52
46.65
21.3
42.23
43.35
44. 48
45.61
47.78 50.04
46.74 47.87 50.14
52.30
54.57
56.84
52.41 54.68
56.95
21.4 42.30 43.43
44.57
45.70
46.83 47.97
50.24 52.51
54.78
57.06
21.5 42.38 43.52
44. 65
45.78
46.92
48.06
50.33
52.61
54.89
57.17
21.6 42.46 43.60
44.73
45.87
47.01
48. 15
50.43 52.71
55.00
57.28
21.7 42.54 43.68
21.8 42.62 43.76
44.82 45.96
47.10
48.24
50.52
52.81
55.10
57.40
44.90
46.04
47.19
48.33 50.62
52.91
55. 21
57.51
21.9
42.70 43.84
44.98 46.13
47.27
48.42
50.72
53.01
55.31
57.62
22.0
42.77 43.92
45.06
46.21
47.36
48.51
50.81
53. 11
55.42
57.73
22. 1
42.85 44.00
45. 15
46.30
47.45
48.60
50.91
53. 21
55. 52
57.84
22.2
42.93
44.08
45. 23
46.38
47.53 48.69
51.00
53.31
55. 63
57.95
22.3 43.00
44.16
45.31
46.47
47.62 48.78
51.09
53.41
55.73
58.06
22.4 43.08 44.24 45.39
22.5 43.16 | 44.31 | 45.47 46.63 47.79 48.96
22.6 43.23 44.39 45.55 46.72 | 47.88 | 49.04
22.7 43.31 44. 47 45.63 46.80 47.97
22.8 43.38 44.55 45.72 46.88 48.05
22.9 43.46 44.63 45.80 46.96
46.55
47.71 48.87
51.19
53.51 55.84
58.17
51.28 53.61 55.94
58.27
51.37
53.71
56.04
58.38
49. 13
51.47
53.81
56, 15
58.49
49.22
51.56
53.90
56.25
58.60
48.14 49.31
51.65
54.00
56.35
58.71
23.0
43.53
44.70 45.88 47.05
48.22 49.39
51.74
54. 10
56.46
58.81
23.1
43. 61
44.78 45.95 47.13
48.30 49.48
51.84
54.20 56.56
58.92
23.2
43.68
23.3 43.76
44.86
44.93 46. 11
46.03
47.21
48.39 49.57
51.93
54.29 56.66
59.03
47.29
48.47 49.65
52.02
54.39 56.76
59.13
23.4 43.83
45.01
46. 19
47.37 48.56 49.74
52.11
54.48
56.86
59.24
23.5 43.91
45.09 | 46.27
47.45 48.64 49.83
52.20
54.58
56.96
59.34
23.6
43.98
45. 16
46.35
47.54 48.72
49.91
52.29
54.68 57.06
59.45
23. 7
44.05
45. 24 46.43
47.62 48.81
50.00
52.38
54,77 57.16
59.55
23.8
44.13
45.31
46.51
47.70 48.89
50.08
52.47 54.87
57.26
59.66
23.9
44. 20
45.39 | 46.58
47.78 48.97
50.17
52.56
54.96 57.36
59.76
24.0
44.27
45.46 | 46.66 47.86
49.05
50.25
52.65
55.05 57.46
59.87
24. 1
44.34
24.2 44.42 45. 61
24.3
44.49 45.69
24.4 44.56 45.76
45.54 46.74 47.94
49.14 50.34
52.74
55. 15
57.56
59.97
46.81 48.02
49.22 | 50.42
52.83
55.24
57.66
60.07
46.89
48.09
46.97 48. 17
49.30 50.50
49.38
52.92
55.34 57.76
60. 18
50.59
53.01
55.43 57.85 60.28
24.5
24.6
44.63 45.84 | 47.04 48.25
44.70 45.91 47.12 48.33
49.46 50.67
53.09
55.52 57.95 60.38
49.54 | 50.75
53. 18
55.61 58.05
60.49
24.7 44.77 45.98 47.20 48.41
24.8 44.84 46.06 | 47.27 48.49 49.70
49.62 50.84
53.27
55.71
58. 15
60.59
50.92
53.36
55.80 58.24
60.69
24.9
44.91 46. 13 47.35 | 48.56 | 49.78
60.79
51.00
58.34
53.45
55.89
48
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

D
sections, given by the formula D₂= −1+
/2v₁2D1 D₁2
+
-Con.
g
4
Depth
before
the jump
=
01=Velocity before the jump

= Di
60
62
64
66 68
70
72
74
165
76
78
20.0
57.66
59.86
62.07
64. 28 66. 49
68.71
70.92
73. 13
75.35 77.56
20.1
57.78
59.99
62. 21
64.42
66. 64
68.86
71.07 | 73.29
75.51
77.73
20.2
57.90
60. 12
62.34
64.56
66.78
69.00
71. 23
73.45
75.68 77.90
20.3
58.02
60.25
62. 47
64.70
66.92
69. 15
71.38
73.61
75.84 78.08
20.4 58.15
60.37
62.60
64.84
67.07
69.30
71.54
73. 77
76.01
78.25
20.5
58.27 60.50
62.74
64.97
67.21
69.45
71.69
73.93
76. 17
78.41
20.6
58.39
60.63
62.87
65. 11
67.35
69.60
71. 84
74.09
76.34
78.58
20.7
58. 51
60.75
63.00
65. 25
67.49
69.74
71.99
74. 25
76.50
78.75
20.8
58.63
60.88
63. 13
65.38
67.63
69.89
72.15
74.40
76.66
78.92
20.9
58.75
61.00
63.26
65. 52
67.78
70.04
72.30
74. 56
76.82
79.09
21.0 58.87
61.13
63.39
65.65
67.92
70. 18
72.45
74.72
76.98
79.25
21.1 58.99
61. 25
63.52
65.79
68.06
70.33
72.60
74.87 77.15
79.42
21.2
59.10
61.37
63.65 65.92
68.20
70.47 72.75
75.03
77.31
79,59
21.3
59.22
61.50
63.78 | 66.05
68.33
70.62 72.90
75. 18
77.47
79.75
21. 4
59.34
61.62
63.90
66. 19
68. 47
70. 76 | 73.05
75.34 77.63
79.92
21.5
59.46 61.74
64.03
66. 32
68. 61
70.90
73.20
75.49
77.78
80.08
21.6 59.57 61.87
64. 16
66.45
68.75
71.05
73.34 75.64 77.94
80.24
21.7 59.69 61.99
64.29
66.58
68.89
71. 19
73.49 75.80
78.10
80.41
21.8 59.81
62. 11 |
64. 41
66.72
69.02
71.33
73.64
75.95
78.26
80.57
21.9
59.92
62. 23
64.54
66.85
69. 16
71.47
73.79
76. 10
78.42
80.73
22.0 60.04
62.35
64.66
66.98
69.30
71.61
73.93
76. 25
78.57
80.90
22.1
60.15
62. 47
64.79
67. 11
69.43
71.75
74.08
76. 40
78.73
81.06
22.2
60. 27
62.59
64.91
67. 24
69.57
71.89
74.22
76.55
78.89
81.22
22.3
60.38
62.71
65. 04
67.37
69.70
72.03
74.37
76.71 79.04
81.38
22.4
60.50 62.83
65. 16
67.50
69.84 72.17
74.51 76.86
79.20
81.54
22.5 60.61 62.95
65.29
67.63 | 69.97 | 72.31
74.66 | 77.00
79.35
81.70
22.6 60.72 63.07
65. 41
67.76 70.10 72.45
74.80 77.15
79.51
81.86
22.7 60.84 63.18
65.53
67.88
70.24
72.59
74.95 77.30
79.66
82.02
22.8 60.95
63.30
65. 66
68. 01
70.37
72.73
75.09
77.45
79.81
82. 18
22.9 61.06
63.42
65.78
68. 14
70.50
72.87
75.23
77.60
79.97
82.33
23.0
61. 17
63. 54
65.90
68. 27
70.64
73.00
75.37 77.75 80. 12
82.49
23.1
61.29
63.65
66.02
68.39
70.77
73. 14
75.52
77.89
80.27
82.65
23.2
61.40
63.77 66. 14
68.52 70.90
73.28
75.66
78.04
80.42
82.81
23. 3
23.4
61.51 63.89 66. 27
61.62 64.00
68.65 71.03
73.41
75.80
78. 19
80.57
82.96
66.39
68.77
71.16
73.55
75.94
78.33
80.72
83. 12
23.5
61.73
64. 12
66.51
68.90 71. 29
73.68
76.08
78.48
80.87
83.27
23.6
61.84
64.23
66.63 69.02
71.42
73.82
76. 22
78.62
81.02
83.43
23.7
61.95
64.35
66.75 69.15
71.55
73.95
76.36
78.77
81. 17
83.58
23.8
62.06
64.46 66.87 69.27
71.68
74.09
76.50
78.91 81.32
83.74
23.9
62. 17
64.58
66.99 69.40
71.81
74.22
76.64 79.05
81.47
83.89
24.0
62.28
64.69
67.10 69.52
71.94
74.36
76.78
79.20 81.62
84.04
24.1
62.39
64.80 67.22 69.64
72.07 74.49
76.92
79.34 81.77
84.20
24.2
62.49
64.92 67.34
69.77
72. 19 | 74.62
77.05
79.48 | 81.92
84.35
24.3
62.60
65.03
67.46 69.89
72.32 74.75
77. 19
79.63 82.06
84.50
24.4
62. 71
65. 14
67.58 70.01
72.45
74.89
77.33
79.77
82. 21
84.65
24.5
62.82 65.25
67.69 70. 13
72.58
75.02
77.46
79.91 82.36
84.81
24.6
62.92 65.37
67.81 70.25
72.70
75. 15
77.60
80.05
82.50
84.96
24.7
63.03
65.48 67.93 70.38
72.83
75.28
77.74
80. 19
82.65
85. 11
24.8
63. 14
65.59
68.04 70.50
72.95
75.41
77.87
80.33
82.79
85,26
24.9
85. 41
63.24
82.94
65.70 68. 16
80.47
70.62 73.08
78.01
75.54
HYDRAULIC TABLES
49
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D2= +
Depth
before
g
v1=Velocity before the jump
D₁ 2v₁²D₁, D₁²
2
+
Con.
4
the jump
=D₁
80
82
84
86
88
90
92
94
| 96 98
20.0
79.78 82.00
84.21
86.43
88.65
90.87
93.09
95.31
97.53
99.75
20.1 79.96 82.18
20.2 80.13 | 82.36
20.3 80.31 82.54 84.78
20.4 80.48 | 82.72 | 84.96
84.40
86. 62
88.85
91.07
93.30
95.52
97.75
99.98
84.59
86.82
89.05
91.28 93.51
95.74
97.97
100. 2
87.01 89.24
91.48 93.72
95.95
98. 19❘
100. 4
87.20 | 89.44
91.68
93.92
96. 17
98.41
100.7
20.5 80.66
80.66 82.90 85.15
20.6 80.83 83.08 | 85.33
87.39 89.64
91.89
94. 13
96.38
98.63
100.9
87.58
89.83
92.09
94.34
96.59
98.84
101. 1
20.7
81.01
83.26 85.52
87.77
90.03
92.29
94.54
96.80
99.06
99.06
101. 3
20.8
81. 18
83.44 85.70
87.96
90.22
92.49
94.75
97.01
99.28
101.5
20.9
81.35
83.62 85.88
88.15
90.42
92.69
94.96
97.22
99.49
99.49
101. 8
21.0 81.52 83.80 | 86.07
88.34 | 90. 61
92.89
95. 16
97.43
99.71
102. 0
21.1 | 81.70 | 83.97
86.25
88.53
90.81
93.08
95.36
97.64 99.92
102, 2
21.2 81.87
84. 15
86.43
88.71
91.00
93. 28
95. 57
97.85 100. 1
102.4
21.3
82.04
84.32 | 86. 61
88.90
91. 19
93.48
95.77
98.06 100.4
102.6
21.4
82. 21
84.50 86.79
89.09
91.38
93.68
95.97
98.27 100.6
102.9
21. 5
82.38
84.68
86.97 | 89.27
91.57
93.87
96.17
98.47 100.8
103.1
21. 6
82.55 84.85
87.15 89.46
91.76
94. 07
96.37
98.68 101.0
103.3
21.7 82.72
85.02 87.33
89.64
91.95
94. 26
96.57
98.89 101. 2
103.5
21.8
82.88
85.20 87.51
89.83
92.14
94. 46
96.77
99.09 101.4
103.7
21.9
83.05
85.37 87.69
90.01
92.33
94. 65
94.65
96.97
99.30 101.6
103.9
22.0
83.22 85.54 87.87
90. 19
92.52
94.84
97.17
99.50 101.8
104.2
22.1 83.39
85.71 88.04
20.37
92.71 95.04
97.37
99.70 102. 0
104.4
22.2 83.55 85.89 88.22 90.56
22.3 83.72 86.06 | 88.40 | 90.74
22.4 83.88 86.23 88.57 90.92
92.89
95.23
97.57 99.91
102. 2
104.6
93.08
95.42
97.76 100. 1
102.5
104.8
93. 27
95.61
97.96 100.3
102.7
105.0
22.5 84.05 86.40 | 88.75
22.6 84.21 86.57 88.92
91.10 93.45
95.80
98.16 100. 5
[102.9
105.2
91.28 93.64 95.99
98.35 100.7
103. 1
105.4
22.7
84.38 86.74
89. 10
91.46
93.82
96.18
98.55 100.9
103.3
105.6
22.8
84.54
86.91
89.27
91.64
94.01
96.37
98.74 101. 1
103.5
105.9
22.9
84, 70
87.07
89.44
91.82
94. 19
96.56
98.94 101. 3
103.7
106.1
23.0
84.87
87. 24
89.62 | 91.99
94.37
96.75
99.13 101. 5
103.9
106.3
23.1
85.03
87.41
89.79 92.17
94.55
96.94
99.32 101.7
104.1
106.5
23.2
85. 19
87.58
89.96
92.35
94. 74
97. 13
99.51 101.9
104.3
106.7
23.3
85.35
87.74
90. 13
92.53
94.92
97. 31
97.31
99.71 102. 1
104. 5
106.9
23.4 85.51
87.91
90.30
92.70
95.10 |
97.50
97.50
99.90 [102. 3
104.7
107.1
23.5 85.67 88.07 | 90.48
23.6 85.83 88.24 90.65
92.88
95.28 | 97.68 (100.1
102.5
104.9
107.3
93.05 | 95.46 | 97.87 100.3
102.7
105. 1
107.5
23.7 85.99 88.40
90.82 93.23
95. 64
98.05 100.5
102.9
105.3
107.7
23.8 86.15 | 88. 57
90.98 93.40
95.82
98. 24
100.7
103. 1
105. 5
107.9
23.9 86.31 88.73
91. 15 | 93. 58
96.00
98. 42
100.8
103. 3
105.7
108.1
24.0 86.47
88.90 | 91.32 | 93.75 |
96. 18
98.61 101.0
103.5
105.9
108.3
24.1❘ 86.63
24.2 86.79 89.22
89.06
91. 49
93.92
96.35 | 98.79
98.79
101.2
103.7
103.7
106. 1
108.5
91.66
94.09
96.53 | 98.97
98.97 101.4
103.9
106.3
108.7
24. 3
86.94 89,38
91,82
94. 27
96.71
99. 15101.6
104. 0
106.5
108.9
24.4
87.10 | 89, 54
91.99
94.44
96.89
99.33 101.8
104.2
106. 7
109.1
24.5 87.26 89.71
92.16
94.61 97.06
99.52 102.0
104. 4
106.9
109.3
24.6 87.41 89.87 92.32
94.78 97.24
99.70 102. 2
104.6
107.1
109.5
24.7 87.57 90.03 | 92.49
94.95 97.41
99.88
102.3
104.8
107.3
109.7
24.8 87.72 90.19
|
92.65 95. 12 | 97.59
100. 1
102.5
105. 0
107.5
109.9
24.9
110.1
87.88 1 90.35 | 92.82 | 95.29 97.76
107.7
100.2
105.2
102.7
50
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂=
D₁ 2 v₁2D₁ D₁²
+
-Con.
g
4
Depth
before
v=Velocity before the jump
the jump
=D1
100
105 110 115
120 125 130
135
140
145 150
20.0
102.0
107.5
113. 1
20.1
102. 2
107.8
113. 3
20. 2
102.4
108. 0
113.6
118.6 124.2 129.8 135. 3
118.9 124.5| 130.1| 135. 6
119.2 124.8 130.4
140.9 146.5 152.0 157.6
141. 2 146.8 152.4 158.0
136. 0)
141.5] 147.1
152.7 158.3
20.3
102.7
108.3
113.9
119.5 125. 1
130.7
136. 3
141.9
147.5
153. 1
158.7
20.4
102.9
108.5
114. 1
119.7 125.3 131.0
136. 6
142. 2
147.8
153. 4
159. 1
20.5
103. 1
108.7
114. 4
120.0 125.6 131.3
136. 9|
142.5|
148.2
153.8 159.4
20.6
103. 4
109.0
114. 6
120.3 125.9 131.6
137. 2
142. 8
148. 5
154. 1
159.8
20.7
103.6
109. 2
114.9
120.5 126.2 131.9
137.5
143. 2
148.8
154.5
160. 2
20.8
103.8
109.5
115. 1
120.8 126.5| 132. 1|
137.8
143.5
149.2
154.8 160.5
20.9
104.0
109.7
115. 4
121. 1 126.8 132.4
138. 1
143. 8
149.5
155. 2
160. 9
21.0
104.3
110. 0
115. 6
121.3 127.0 132.7
138. 4
144. 1
149.8
155. 5
161. 2
21. 1
104.5
110. 2
115.9
121.6 127.3 133. 0
138. 7
144. 5
150. 2
155.9 161.6
21.2
104.7
110. 4
116. 1
121.9 127.6 133.3
139. 0
144.8
150.5 156.2 162.0
21.3
104.9
110.7
116. 4
122.1 127.9 133.6
139.3
21.4
105. 2
110.9
116.6
122.4
128. 1|
133. 9|
139.7
145. 1| 150.8 156.6 162.3
145. 4 151.2 156.9 162.7
21. 5
105.4
111. 1
116. 9
21.6
105. 6
111. 4
117. 1
21.7
105. 8
111.6
117.4
21.8
106. 0
111.8
117.6
122.7 128.4 134. 2 140.0
122.9 128.7 134.5 140.3
123.2 129.0 134.8 140.6
123.4 129. 2 135.1 140.9
145.7 151.5 157.3 163.0
146.0] 151.8 157.6 163.4
146. 4 152.1 157.9 163.7
146.7 152.5
158. 3
164. 1
21.9
106.3
112. 1
117.9
123.7 129.5 135.3
141. 2
147.0
152.8
158. 6
164. 4
22.0
106.5
112.3
118. 1
124.0 129.8
135. 6
141. 5
147.3
153. 1
159.0
164.8
22.1 106.7
112.5
118. 4
124. 2 130. 1|
135. 9|
141.8
147.6
153. 4|
159. 3|
165. 1
22.2
106.9
112.8
118.6
124.5 130.3] 136.2
142. 1
147.9
153.8
159.6
165.5
22.3
107.1
113. 0
118.9
124.7 130.6) 136.5|
142.3
148. 2
154. 1
160.0
165.8
22.4 107.4
113. 2
119. 1
125.0 130.9 136. 8
142. 6
148. 5
154. 4
160. 3
166. 2
22.5 107.6
113.5
119.4
125.2 131.1| 137.0
142.9
148.8
154.7
160.6
166.5
22.6
107.8 113.7
119.6
125.5 131.4 137.3
143. 2
149. 1
155. 1
161.0 166.9
22.7
108.0
113.9
119.8
125.8 131.7 137.6
143.5
149.5
155. 4| 161.3
167. 2
22.8
108.2
114. 1
120. 1
126.0 131.9 137.9
143. 8
149.8 155.7 161.6 167.6
22.9
108.4
114. 4
120.3
126.3 132. 2
138. 2
144. 1
150. 1156. 0
162.0 167.9
23.0
108.6
114.6
120.6
126.5 132.5
138. 4
144. 4
150. 4 156. 3
162. 3
168.3
23. 1
108.9
114.8
120.8
126.8 132.7
138.7
144. 7|
150.7|
156. 6
162.6
168. 6
23.2
109. 1
115. 1
121.0
127.0
133. 0
139.0
145. 0
151.0
157. 0
163.0 168.9
23. 3
109.3
115.3
121. 3
127.3 133. 3|
139. 3|
145. 3
151.3
157.3
163.3 169.3
23.4
109.5 115.5
121. 5
127.5 133.5
139.5
145. 6
151.6
157.6 163. 6 169.6
23.5 109.7
115.7
121.7
127.8 133.8
139.8
145.8
151.9
157.9
163.9 170.0
23.6
109.9
116. 0
122.0
128.0 134. 1
140. 1
146. 1
152. 2
158. 2
164. 3
170.3
23.7
110. 1
116.2
122, 2
128.3 134. 3
140. 4
146. 4
152, 5
158.5
164. 6
170.6
23.8
110.3
116. 4
122.5
128.5 134.6 140.6
146. 7
152. 8
158.8
164.9 171.0
23.9
110.5
116. 6
122.7
128.8 134.8 140.9
147. 0
153. 1
159. 1
165. 2 171.3
24.0
110.8
116.8
122.9
129.0 135.1 141. 2
147.3
153. 4
159. 5
165. 6 171.6
24. 1
111.0
117. 1 123. 2
129.3 135.4 141.5 147.6
153.7
159.8
165.9 172.0
24.2
111. 2
117.3
123.4
129.5 135.6 141.7 147.8
154. 0
160. 1
166. 2.172.3
24. 3
111.4
117.5
123.6
129.7 135.9) 142.0
148. 1|
154. 3
160.4 166.5 172.6
24. 4
111.6 117.7
123.8
130.0 136.1| 142. 3)
148. 4
154. 5
160.7 166.8 173.0
24.5
111.8
117.9
124. 1
130. 2 136. 4
142. 5
148. 7
154. 8
161.0 167.2 173.3
24.6
112. 0
118. 2
124.3
24.7
112.2
118. 4
124. 5
24.8 112.4
118. 6
130.5 136.6 142.8 149. 0
130.7 136.9 143. 1| 149.2
124.8 131.0 137.1 143.3 149.5
155. 1 161.3 167.5 173.6
155. 4 161.6 167.8 174.0
155.7 161.9 168.1 174.3
24.9
156. 0 162. 2| 168. 4 174.6
112.6
125.0 131.2 137.4 143. 6 149.8
118.8
HYDRAULIC TABLES
51
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
sections, given by the formula D½=
D₁ 2v₁2D₁, D₁2
Depth
before
the jump
2
g
v₁=Velocity before the jump
+
-Con.
4

=D₁
28
29
30
31
32
33
34
35
53
36
25.0
25.76
26.94
28.12
29.31
30.50
31.70
32.90
34.10
25.1
25.79 26.98
28. 16
29.35
30.55
31.74
32. 94
34.15
25.2
25.83
27.01
28.20
29.39
30.59
31.79
32.99
34.20
25.3
25.86
27.05
28. 24
29.44
30.63
31.83
33.04 34.24
25.4
25.90
27.09
28.28
29.48
30.68
31.88
33.09 34.29
25.5
25.93
27.12
28.32
29.52 30.72
31.92
33.13
34.34
25.6
25.97
27.16
28.36
29.56
30.76
31.97
33.18
34.39
25.7
26.00
27. 19
28.39
29.60
30.80
32. 01
33.23
34.44
25.8
26.03
27.23
28.43 29.64
30.85
32.06
33.27
34.49
25.9
26.07
27.27
28.47
29.68
30.89
32.10
33.32
34.54
26.0
26.10
27.30
28.51
29.72
30.93
32. 15
33.37
34.59
26.1
26.13 27.34
28.54
29.76
30.97
32. 19
33. 41
34.64
26.2
26.17
27.37
28.58
29.80
31.01
32. 23
33.46
34.68
26.3
27.41 28.62
29.84
31.05
32. 28
33.50
34.73
26.4
27.44 28.66
29.87
31.10
32.32
33.55
34.78
26.5
27.48 28.69 29.91
31. 14
32.36
33.59
34.83
26.6
27.51 28.73
29.95
31.18
32. 41
33.64
34.87
26.7
27.55 28.77
29.99
31.22
32.45
33.68
34.92
26.8
27.58
28.80
30.03
31.26
32.49
33.73
34.97
26.9
27.62 28.84
30.07
31.30
32.54
33.77
35.02
27.0
27.65
28.88
30.11
31.34
32.58
33.82
35.06
27.1
27.69 28.91
30. 15
31.38
32.62
33.86
35. 11
27.2
27.72
28.95
30.18
31.42
32.66
33.91
35. 16
27.3
27.75
28.99
30.22
31.46
32.71
33.95
35.20
27.4
27.79 29.02
30. 26
31.50
32.75
34.00
35.25
27.5
27.82 29.06
30.30
31.54 32.79
34.04
35.30
27.6
27.86 29.09
30.34
31.58
32.83 34.09
35.34
27.7
27.89
29.13
30.37
31.62
32.87 34.13
35.39
27.8
27.92
29.17
30.41
31.66 32.92
34.17
35.43
27.9
27.96
29.20
30.45
31.70
32.96
34.22
35.48
28.0
27.99
29.24
30.49
31.74
33.00 34.26
35.52
28.1
29. 27
30.52
31.78
33.04
34.30
35.57
28. 2
29.31 30.56
31.82
33.08
34.35
35.62
28.3
29.34 30.60
31.86
33.12
34.39 35.66
28.4
29.38 30.64
31.90
33.16
34.43
35.71
28.5
29.41 30.67
31.94
33.20
34.48 35.75
28.6
29.45 30.71
31.98
33.25
34.52
35.80
28.7
29.48
30.75
32. 01
33.29 34.56
35.84
28.8
29.52
30.78
32.05
33.33
34.60
35.88
28.9
29.55
30.82
32.09
33.37 34.65 35.93
29.0
29.58
30.85
32. 13
33.41 34.69 35.97
29.1
29.62
30.89
32. 17
33.45
34.73 36.02
29.2
29.65 30.93
32. 20
33.49
34.77 36.06
29.3
29.69 30.96
32.24
33.53
34.81
36.11
29.4
29.72 31.00
32. 28
33.57
34.86
36.15
29.5
29.75 31.03
32.32
33.61
34.90
36. 19
29.6
29.79 31.07
32.36
33.65
34.94
36.24
29.7
29.82 31.10
32. 39
33.69
34.98
36.28
29.8
29.85
31.14
32.43
33.72
35.02
36.32
29.9
29.89
31.18
32.47
33.76
35.06
36. 37
30.0
36.41
31. 21
35.10
32.50
33.80
52
HYDRAULIC TABLES
Table 3.—Depth, D2, after hydraulic jump for rectangular cross-
4
sections, given by the formula D₂=
D₁ 2v₁2D1 D₁2
+
-Con.
g
4
Depth
before
01=Velocity before the jump

the jump
=Di
37
38
39
40
41
42
43
44
45
25.0
35.30
36.50
37.71
38.92
40.13
41.34
42.55
43.77 44.99
25. 1
35.35
36.56
37.77
38.98
40. 19
41.40
42.62
43.84
45.06
25. 2
35.40
36. 61
37.82
39.04
40.25
41.47
42.69
43.90
45. 13
25.3
35.45
36.67
37.88
39.09
40.31
41.53 42.75
43.97
45.20
25.4
35.51
36.72
37.93
39. 15
40.37
41.59
42.82
44.04
45.27
25.5
35.56
36.77
37.99
39. 21
40.43
41.66
42.88
44. 11
45.33
25.6
35.61
36.83
38.05
39.27
40.49
41.72
42.95
44.17
45.40
25.7
35.66
36.88
38.10
39.33
40.55
41.78
43.01
44. 24
45. 47
25.8
35. 71
36.93
38. 16
39.38
40.61
41.84
43.07
44. 31
45.54
25.9
35.76
36.99
38.21
39.44 40.67
41.90
43. 14
44.37
45.61
26.0
35.81
37.04
38.27
39.50
40.73
41.97
43.20
44. 44
45.68
26.1 35.86 37.09
38.32
39.56
40.79
42.03
43.27
44. 51
45.75
26.2 35.91 37.14
38.38
39.61
40.85
42.09
43.33
44.57
45.82
26.3 35.96
37.20
38.43
39.67
40 91
42.15
43.39
44.64
45.88
26.4
36.01
37.25 38.49 39.73
40.97
42. 21
43.46
44.70
45.95
26.5
36.06
37.30 38.54
39.78
41.03
42.27
43.52
44. 77
46.02
26.6
36. 11
37.35 38.59 39.84
41.08
42.33
43.58
44.83
46.09
26.7
36.16
26.8
36. 21
37.40 38.65
37.46 38.70 39.95
39.89
41. 14
42.39
43.64
44.90
46. 15
41.20
42.45
43. 71
44.96
46. 22
26.9
36.26
37.51
38.76
40.01
41.26
42.51
43.77
45.03
46.29
27.0
36.31
37.56
38.81
40.06
41.32 42.57
43.83
45.09
46.35
27.1
36.36
37.61
38.86
40.12
41.37 42.63 43.89
45. 16
46.42
27.2
36. 41
37.66
38.91
40. 17
41.43 42.69
43.96
45. 22
46.49
27.3
36.46
37.71
38.97
40.23
41.49
42.75
44.02
45.28
46.55
27.4
36.50
37.76
39.02
40.28 41.55
42.81
44.08
45.35
46.62
27.5
36.55 37.81
39.07
40.34 41.60
42.87
44. 14
45. 41
46.68
27.6
36.60 37.86
39. 13
40.39
41.66
42.93
44. 20
45.47
46.75
27.7
36.65
37.91
39. 18
40.45
41.72 42.99
44.26
45.54
46.81
27.8
36.70
37.96
39.23
40.50 41.77
43.05
44.32
45.60
46.88
27.9
36. 74
38.01
39.28
40.55
41.83
43.10
44.38
45.66
46.94
28.0
36.79
38.06
39.33
40.61
41.88
43. 16
44. 44
45. 73
47.01
28. 1
36.84
38. 11
39.39
40.66
41.94
43.22
44.50
45.79
47.07
28.2
36.89
38.16
39.44 40.72
42.00
43.28
44.56
45.85 47.14
28.3 36.93
38.21
39.49 40.77
42.05
43.34
44.62
45.91
47.20
36.98
28.4
28.5 37.03 38.31
28.6 37.08 38.36
38.26
39.54
40.82
42.11
43.39
44.68
45.97
47.27
39.59 40.88
42.16
43.45
44.74
46.04
47.33
39.64 40.93
42.22
43.51
44.80
46. 10
47.39
28.7 37.12 38.41
28.8 37.17 38.45
28.9
37.21 38.50
29.0 37.26 38.55
39.69 40.98
42.27
43, 57
44.86
46. 16
47.46
39.74
41.03
42.33
43.62
44.92
46.22
47.52
39.79 41.09
42.38
43.68
44.98 46.28
47.58
39.84
41. 14
42.44
43.74
45.04
46.34 47.65
29.1 37.31 38.60
29.2 37.35 38.65 39.95
39.89
41. 19
42.49
43.79
45. 10
46.40
47.71
41.24
42.55
43.85
45. 16
46.46
47.77
29.3
37.40 38.70
40.00
41.30
42.60
43.91
45. 21
46.52
47.84
29.4
37.45 38.74
40.05
41.35 42.65
43.96
45.27
46.58
47.90
29.5 37.49 38.79
40.09
41.40 42.71
44.02
45.33
46.64
47.96
29.6 37.54 38.84 40. 14
41.45
42.76
44.07
45.39
46.70
48.02
29.7 37.58 38.89
40. 19
41.50
42.82
44. 13
45.45
46.76
48.08
29.8 37.63 38.93
40.24
41.56
42.87
44. 19
45.50
46.82
48. 15
29.9 37.67 38.98
40.29 41.61 42.92
44. 24
45.56
46.88
48. 21
30.0
48.27
37.72 39.03
46.94
40.34 41.66 42.98
45.62
44.30
HYDRAULIC TABLES
53
sections, given by the formula D½=
D₂:
Depth
before
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

Dix
2v₁2D1 D₁2
2
g
+ -Con.
4
v=Velocity before the jump
the jump
=D₁
46
47
886
48
49
50
52
54
56
58
60
25. 0
46. 20
47.42
48.64
49.86
51.09
53.53
55.98
58.44 60.89
63.35
25. 1
46. 28
47.50
48.72
49.94
51. 17
53.62
56. 07
58.53
60.99
63.4€
25.2
46.35
47.57
48.80
50.02
51. 25
53.71
56. 16
58.63
61.09
63.5€
25.3
46. 42
47.65 48.87
50. 10
51.33
53.79
56. 26
58.72
61. 19
63.67
25.4
46.49
47.72
48.95
50.18
51.41
53.88
56.35
58.82
61.29
63.77
25.5
46.56 47.79
49.03
50.26
51.49
53.96
56.44
58.91
61.39
63.88
25.6
46.64
47.87
49. 10
50.34
51.57
54. 05
56.53
59.01
61. 49
63.98
25.7
46. 71
47.94
49. 18
50.42
51.65
54. 13
56.62
59.10
61.59
64.08
25.8
46.78
48.02
49. 25
50.49
51.73
54.22
56.71
59. 20
61.69
64. 19
25.9
46.85
48.09
49.33
50.57 51.81
54.30 56.80
59.29
61.79
64.29
26.0
46.92
48. 16
49.41
50.65
51.89
54.39 56.89
59.39
61.89
64.39
26. 1
46.99
48. 23
49.48
50.73
51.97 54.47 56.97
59.48 61.99
64.50
26.2
47.06
48. 31
49.55
50.80
52.05
54.56
57.06 59.57
62.08
64.60
26.3
47. 13
48.38
49.63
50.88
52. 13
54.64
57.15
59.67
62.18
64.70
26.4
47.20
48.45
49.70
50.96
52. 21
54. 72
57.24 59.76
62.28
64.80
26.5
47.27 48.52 49.78
51.03
52.29
54.81
57.33
59.85
62.38
64.91
26.6 47.34 48.60
26.7
26.8 47.48 48.74
49.85
51. 11
52.37
54.89
57.42
59.94
62. 47
65.01
47.41 48.67
49.93
51. 19
52.45
54.97
57.50
60.04
62.57
65. 11
50.00
51. 26
52.53
55. 06
57.59
60. 13
62.67
65. 21
26.9 47.55 48.81 50.07
51.34
52.60
55. 14
57.68
60. 22
62.76
65.31
27.0 47.62 48.88 | 50. 15 |
51.41 | 52.68
55.22
57.76
60. 31
62.86
65. 41
27.1 47.69 48.95 50.22 51.49 52.76
55.30 57.85
60.40
62.96
65.51
27.2 47.75 49.02
50. 29
51.56
52.84
55.38
57.94
60.49
63. 05
65. 61
27.3 47.82 49.09
50.37
51.64
52.91
55.47
58.02
60.58
63. 15
65.71
27.4 47.89 49.16
50.44
51.71
52. 99
55.55
58. 11
60.67
63. 24
65.81
27.5 47.96 49. 23
50.51
51.79
53. 07
55.63
58. 19
60.76
63.34
65.91
27.6
48.03
49.30
50.58
51.86
53. 14
55.71
58.28
60.85
63.43
66. 01
27.7
48.09
49.37
50.65
51. 94
53. 22
55.79
58.37 60.94
63.52
66. 11
27.8
48. 16
49.44
50.73 | 52. 01
53.30
55.87
58.45 61.03
63.62
66. 21
27.9
48. 23
49.51
50.80 52.08
53.37
55.95
58.53 61.12
63.71
66.30
28.0
48.29
49.58
50.87 52.16
53. 45
56.03
58.62
61. 21
63.81
66.40
28. 1
48. 36
49.65
50.94 | 52.23
53.52
56. 11
58.70
61.30
63.90
66.50
28.2
48.43
49.72
51. 01
52.30
53.60
56. 19
58.79
61.39
63.99
66.60
28.3
48.49 49.79
51.08
52.38
53.67
56. 27
58.87
61.48
64.08
66.70
28.4 48.56
49.86
51. 15
52.45
53.75
56.35
58.96
61. 57
64. 18
66.79
29.5 48.63 49.92
51. 22
52.52
53.82
56.43
59.04
61.65
64. 27
66.89
28.6 48.69 49.99
51.29
52.59
53.90 56.51
59.12
61.74
64.36
66.99
28.7 48.76
50.06
51.36
52.67 53.97
56.59
59. 21
61.83
64. 45
67.08
28.8 48.82
50. 13
51.43 52.74
54.05
56.67
59.29
61.92
64.55
67.18
28.9
48.89
50. 19
51.50
52.81 54. 12
56.74
59.37
62.00
64. 64
67.27
29.0
48.95
50.26
51.57
52.88
54. 19
56.82
59.45
62.09
64.73
67.37
29.1
49.02
50.33 51.64
52.95
54. 27
56.90
59.54
62. 18
64.82
67.47
29.2
49.08
50.40 51.71
53.03
54. 34
56.98
59.62
62.26
64.91
67.56
29.3
49. 15
50.46 51.78
53. 10
54. 41
57.06
59.70
62.35
65.00
67.66
29.4
49. 21
50.53 51.85
53. 17
54. 49
57.13
59.78
62.44
65. 09
67.75
29.5
49.28
29.6 49.34 50.66 51.99
29.7 49.41 | 50.73 | 52.05
29.8 49.47 50.79 52.12
29.9 49.53 50.86 52. 19
50.60 51.92
53. 24 | 54.56
57.21
59.86
62.52
65. 18
67.85
53.31
54. 63
57.29
59.94
62.61
65. 27
67.94
53.38
54. 71
57.36
60.03
62.69
65.36
68.03
53.45
54.78
57.44
60. 11
62.78
65. 45
68.13
53.52
54.85 57.52
60. 19
62.86
65.54
68.22
30.0 49.60 50.93 52, 26
68.32
53.59 | 54.92
65.63
57.59
62.95
60.27
54
HYDRAULIC TABLES
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-

sections, given by the formula D₂:
Depth
before
the jump
V =
=
Di 2v₁²D₁, D₁²
+
+
-Con.
2
g
4
Velocity before the jump

=
Di 62
64
66
68
70
72
74
76
78
80
25.0
65.81 68.27
70.74
73.20
75.67
78.14 80.61
83.08
85.56
88.03
25.1
65.92 68.39
70.86
73.33
75.80
78.28
80.75
83. 23
85.71
88.19
25.2
66.03
68.50
70.98 73.45
75.93
78.41
80.89
83.37
85.85
88.34
25.3
66. 14
68.62
71.10
73.58
76.06
78.54
81.03
83.52
86.00
88.49
25.4
66.25
25.5 66.36 68.85 71.34
25.6 66.47 68.96 71.45
25.7 66.58 69.07 71.57
25.8 66.69 69.19
68.73
71.22 73.70
76.19
78.68 81.17
83.66
86. 15
88.64
76.32
73.83
73.95 76.45 78.94
74.07 76.57
78.81 81.31
83.80
86.30
88.80
81.44
83.94
86.45
88.95
79.08 81.58
84.09 86.59
89.10
71.69
74. 19
76.70
79.21
81.72 84.23 86.74
89.25
25.9 66.79
69.30 71.81
74.32
76.83
79.34 81.85
84.37
86.89
89.40
26.0
66.90
69.41 71.93 74.44
76.96
79.47
81.99
84.51
87.03
89.55
26. 1
67.01
69.53
72.04 74.56
77.08
79.60
82. 13
84.65
87.18 89.70
26.2
67.12
69.64 72.16
74.68
77.21
79.73
82.26
84.79 87.32
89.85
26.3
67.22 69.75 72.28
74.80
77.33
79.86
82.40
84.93 87.47
90.00
26.4
67.33 69.86 72.39
74.92
77.46
79.99
82.53
85.07
87.61
90.15
26.5 67.44 69.97 72.51
75.04
77.58
80.12
82.67
85.21
87.76
90.30
26.6 67.54 70.08
26.7 67.65 70.19
26.8
72.62
75. 16
77.71
80.25 82.80 85.35
87.90
90.45
72.74
75.28
77.83
80.38 82.94 85.49
88.04
90.60
67.76 70.30 72.85
75.40
77.96 80.51
83.07
85.63 88.19
90.75
26.9 67.86
70.41 72.97
75.52
78.08
80.64
83.20
85.76 88.33
90.89
27.0
67.97
70.52 73.08
75.64
78. 21
80.77
83.33
85.90.. 88. 47
91.04
27, 1
68.07
70.63 73.20
75.76
78.33
80.90
83.47
86.04
88.61
91. 19
27.2
68. 18
70.74 73.31
75.88
78.45
81.03
83.60
86. 18
88.75
91.33
27.3
68.28
70.85 73.42
76.00
78.57
81. 15
83.73
86.31
88.90.
91. 48
27.4
68.38
70.96
73.54 76.12
78.70
81.28
83.86
86.45
89.04
91.62
27.5
68.49
71.07
73.65 76.23
78.82
81.41
81.00
86.59
89. 18
91.77
27.6 68.59
71. 18
73.76 70.35 78.94
81.53
84. 13
86.72
89.32
91.91
27.7 68.69
71,28
73.87 76.47 79.06
81.66
84.26
86.86
89.46
92.06
27.8 68.80 71.39
27.9 68.90 71.50
73.99
76.58 79.18
81.79
84.39 86.99 89.60
92.20
74.10
76.70 79.30
81.91
84.52
87.13
89.74
92.35
28.0 69.00 71.61
28.1 69.11 71.71
74.21
76.82 79.43
82.04
84.65
87.26
89.87
92.49
74.32 76.93
79.55 82.16
84.78
87.39
90.01
92.63
28.2 69.21 71.82 74.43 77.05
79.67 82.29
84.91 87.53
90. 15
92.78
28.3 69.31 71.93 74.54 77.16 79.79 82.41
85.04
87.66
90.29
92.92
28.4 69.41 72.03
74.65 77.28
79.91 82.53
85. 16
87.80
90.43
93.06
28.5 69.51 72. 14
38.6 69.61 72. 24
28.7 69.71 72.35
28.8 69.81 72.45
28.9 69.92 72.56
29.0 70.02 72.66
29.1 70.12 72.77
29.2 70.21 72.87 75.53
29.3 70.31 72.97 75.64
29.4 70.41 73.08 75.75 78.42
74.76 77.39 80.02 | 82.66
74.87 77.51 80.14 82.78
74.98 77.62 80.26 82.90
75.09 77.74 80.38 83.03
75.20 77.85 80.50
85.29
87.93 90.57
93.20
88.06 90.70
88.32 90.98
83. 15
88.46 91.11
85.42
85.55 88.19 90.84 93.49
85.68
85.80
93.35
93.63
93.77
75.31 77.96
80.62
83.27
85.93 88.59 91.25
93.91
75.42
78.08
80.74
83.39
86.06
88.72
91.38
94.05
78. 19
80.85
83. 52
86.18 88.85
91.52
94. 19
78.30
80.97
$3.64
86.31 88.98
91.65
94.33
81.09 83.76 86.43 89.11
91.79
94.47
29.5 70.51 73.18 75.85 78.53
29.6 70.61 73.28 75.96 78.64 81.32 84.00 86.69 89.37 92.06
81.20
83.88
86.56
89.24
91.92
94.61
94.75
29.7 70.71 73.39
76.07
78.75
81.44
84.12 86.81
89.50 92.19
94.88
29.8 70.81 73.49
76. 18
78.86
81.55
84.24 86.93
89.63 92.32
95.02
29.9 70.91 73.59 76, 28
78.97 81.67
84.36 87.06
89.76
92.46
95.16
30.0
95.30
71.00 73.69 76.39 79.08 81.78 84.48 87.18
92.59
89.89
HYDRAULIC TABLES
55
Table 3.-Depth, D2, after hydraulic jump for rectangular cross-
D₁
2
sections, given by the formula D₁ = - D¹+1
Depth
before
g
2v2 D₁, D₁2
+
4
-Con.
v=Velocity before the jump

the jump
= Di
82
84
86
888
90
092 94 96 98
100
25.0
90.51
92.98 95.46
97.94 100.4
102.9
105. 4 107.9 110.3
112.8
25, 1
90.66
93.15
95.63
98.11
100.6
103. 1
105.6
108.0
110.5
113.0
25.2
90.82
93.31
95.80
98.28 100.8
103.3
105.7
108.2
110.7 113.2
25.3❘ 90.98 93.47
95.96
98.45 100,9
103.4
105.9
108.4
110.9
113.4
25.4 91.14 93.63
96. 13
98.63
101.1
103.6
106. 1
108.6
111.1
113.6
25.5
91.30 | 93.80
96.30
98.80
101.3
103.8
106.3
108.8
111.3
113.8
25. 6
91.45 93.96
96.46 98.97
101.5 104.0
106.5
109.0 111.5
114.0
25.7
91.61
94. 12
96.63 99.14
25.8 91.77
94.28
96.80
99.31
101.7
101.8
104.2 106.7
109.2
111.7
114.2
104.3 106.9 109.4
111.9
114.4
25.9
91.92 94.44 96.96
99.48
102.0 104.5
107.0
109.6
112. 1
114.6
26.0
26. 1
92.08
92.23 94.76 97.29
94.60 97.13
99.65
102.2
104.7
107.2
109.8
112.3
114.8
99.82
102.4
104.9
107.4
110.0
112.5
115.0
26.2
92.39 94.92
97.45 99.99
102.5
105.1
107.6
110. 1
112.7
115.2
26.3 92.54 95.08
97.62 100. 2
102.7
105. 2
107.8
110.3
112.9
115.4
26.1 92.69 95.24
97.78 100.3
102.9
105.4
108.0
110.5
113. 1
115.6
26.5 92.85 95.40
97.94 100.5
103.0
105. 6
108.1
110.7
113.3
115.8
26.6 93.00
95.55
98.11 100.7
103.2
105.8
108.3
110.9
113.4
116.0
26.7 93.15
95.71
98.27 100. 8
103.4
105.9
108.5 111.1
113.6
116. 2
26.8 93.31
95.87
98.43 101. 0
103.6
106. 1
108. 7
111.3
113.8
116.4
26.9 93.46
96.03
98.59 101. 2
103.7
106.3
108.9
111.4
114.0
116.6
27.0 93.61
96. 18
98.75 101.3
103.9
106.5
109.1
111.6 114.2
116.8
27.1 93.76
96.34
98.91 101.5
104. 1
106.7
109.2
111.8 114.4
117.0
27.2 93.91 96.19 99.07 101.7
104.2
106.8
109.4 112.0
114.6
117.2
27.3 94.06 96.65
99.23 101.8
104.4
107.0 109.6 112.2
114.8
117.4
27.4 94.21 96.80
27.5 94.36 96.96
27.6 94.51 97.11
99.39 102.0
104.6
107.2
109.8 112.4
115.0
117.6
99. 55 102.2
99.71 [102.3
27. 7
94.66 97.27
99.87
102.5
104.7 107.3
104.9 107.5
105.1 107.7 110.3
109.9
112.5
115.1
117.7
110.1 112.7
115.3
117.9
112.9 115.5
118.1
27.8
94.81
97.42 100.0
102. 6
105.3 107.9 110.5
113.1
115.7
118.3
27.9
94.96
97.57 100.2
102.8
105.4
108.0 110.7
113.3
115.9
118.5
29.0
95. 11
97.73 100.3
103.0
105.6
108.2 110.8
113.5
116.1 118.7
28. 1
95.26
97.88 100 5
103. 1
105.8
108. 4
111.0
113.6
116.3
118.9
28.2
95.40
98 03 100.7
103. 3
105.9
108.5
111.2
113.8
116. 4
119.1
28.3
95. 55
98.18. 100.8
103.4
106, 1
108.7
111.4
111.0
116.6
119.3
28.1
95.70
95.70
98.33 101.0
103.6
106.2
108.9
111.5
114.2
116.8
119.5
28.5 95.84
98.48 101. 1
103.8
106.4 109.1
111.7
114.3
117.0
119.6
28.6
95.99
98.61 101.3
103.9
106.6 109.2
111.9
114.5 117.2
119.8
28.7
96. 14
99.79 101.4
104. 1
28.8
96.29
98.94 101.6
104.2
106.7 109.4 112.0
106.9
114.7
117.4
120.0
109.6 112.2 114.9
117.5
120.2
29.9
96.43
99 09 101.7
104.4
107.1
109.7
112.4 115.1 117.7
120.4
29.0 96.57
99.23 101.9 104.6
107.2
109.9
112.6 115.2 117.9
120.6
29.1
96.72
99.38 102.1
104.7
107.4
110. 1
112.7
115.4 118.1
120.8
29.2
96.86 99.53 102.2 101.9
107.6
110. 2
112.9
115.6 118.3
120.9
29.3 97.00
99.68 102.4
105.0
107.7
110.4
113.1
115.8
118.4
121. 1
29.4 97.15 99.83 102. 5
105. 2
107.9
110.6 113.3
115.9
118.6
121.3
29.5 97.29 99.98 102.7
105.4
108.0 110.7
113.4
116. 1
118.8
121.5
29.6 97.43
97.43 100.1 102.8 105.5
108.2
110.9
113.6
116.3
119.0 121.7
29.7 97.58 100.3 [103.0
105.7
108, 4
111. 1
113.8
116.5 119.2
121.9
29.8 97.72 100.4 103. 1
105.8
108.5
111.2
113.9
116.6
119.3
122.0
29.9 97.86 100.6
103.3
106.0
108.7
111.4
114. 1
116.8
119.5 122.2
30.0 98.00
119.7 122.4
98.00 100.7
117.0
103.4
108.8 111.6 114.3
106. 1
56
HYDRAULIC TABLES
Table 3.-Depth, D2, after
-Depth, D2, after hydraulic jump for rectangular cross

sections, given by the formula D₂
Di 2v₁2D1, D2
+
+
V
-Con.
g
4
Depth
before
01 Velocity before the jump
the jump
=Di
105
110
115
120
125
130
135
140
145
150
25.0
119.0 125.2
25.1 119.2
25.2 119.4 125.7
131.4
137.6
143.9
150. 1
156.3
162.5 168.7
175.
125.5
131.7
137.9
144. 1
150. 4
156.6
162.8
169.0
175.
131.9
138.2
144. 4
150.6
156.9
163. 1
169.4
175.
25.3 119.7 125.9
132. 2
138.4
144.7
150.9
157.2
163.4
169.7 175.
25.4 119.9 126. 1
132.4
138.7
144.9
151.2
157.4
163.7
170.0 176.
25.5 120.1 126.4
132.6
138.9
145. 2
151.5
157.7
164.0
170.3
176.
25.6 120.3 126.6
132.9
139.2
145.4
151.7
158.0
164. 3
170.6
176.
25.7 120.5
126.8
133. 1
139.4
145.7
152.0
158.3
164.6
170.9
177.
25.8
120.7
127.0
133. 3
139.6
146.0
152. 3
158.6
164.9
171.2 177.
25.9
120.9 127.3
133.6
139.9
146. 2
152.5
158.9
165.2
171.5 177.
26.0
121.1
127. 5
133.8
140. 1
146.5
152.8
159.2
165.5
171,8 178.
26.1
121.4
127.7
134.0
140. 4
146.7
153.1
159.4
165.8
172.1
178.
26.2 121.6
127.9
134.3
140.6
147.0
153.4
159.7
166. 1
172.4
178.
26.3 121.8
128. 1
134.5
140.9
147.3
153.6
160.0
166.4
172.8
179.
26.4
122.0
128.4
134. 7
141. 1
147.5
153.9 160.3
166.7
173.1 179.
26.5 122.2
128.6
135.0
141. 4
147.8
154.2
160.6
167.0 173.4 179.
26.6 122.4
128.8
135. 2
141.6
148.0
154. 4
160.8
167.3 173.7 180.
26.7 122.6 129.0
135. 4
141.9
148. 3
154.7
161. 1
167.5
174.0
180.
26.8
122.8 129.2
135.7
142. 1
148.5
155.0
161.4
167.8
174. 3
180.
26.9 123.0 129.5
135.9
142. 3
148.8
155.2
161.7
168.1
174.6
181.
27.0 1.23.2
129.7
136. 1
142.6
149.0
155.5
162.0
168.4
174.9 181.
27.1 123.4
129.9
136.4
142.8
149.3
155.8
162.2 168.7
175.2 181.
27.2 123.6
130. 1
136.6
143. 1
149.5
156.0
162.5 169.0
175.5 182.
27.3 123.8
130.3
136.8
143. 3
149.8
156. 3
162.8
169.3
175.8
182.
27.4 124.0
130.5
137.0
143. 5
150.0
156. 5
163. 1
169.6
176. 1
182.
27.5
124, 3
130.8
137.3
143.8
150.3
156.8
163.3
169.9
176.4
182.
27.6
124.5
131.0
137.5
144.0
150.5
157. 1
163.6
170. 1
176.7
183.
27.7
124.7
131. 2
137.7
144. 3
150.8
157.3
163.9
170.4
177.0
183.
27.8
124.9
131. 4
137.9
144. 5
151.0
157.6
164. 1
170.7
177.3
183.
27.9
125. 1
131.6
138.2
144.7
151.3 157.9
164.4
171.0
177.6
184.
28.0
125.3
131.8
138.4
145.0
151.5 158.1
164.7 171.3
177.9 184.
28. 1
125.5
132.0
138.6
145. 2
151.8 158.4
165.0
171.6
178.1
184.
28.2
125.7
132. 3
138.8
145.4
152.0 158.6
165. 2
171.8
178.4 185.
28.3
125.9
132.5
139.1
145.7
152.3
158.9
165.5
172. 1
178.7
185.
28.4
126. 1
132.7
139.3
145.9
152, 5
159.1
165.8
172.4
179.0
185.
28.5
126. 3
132.9
139.5
146. 1
152.8
159.4
166.0
172.7
179.3 186.
28.6
126.5
133. 1
139.7
146. 4
153.0
159.7
166. 3
173.0 179.6 186.
28.7 126.7
133. 3
140.0
146.6
153.3
159.9
166.6
28.8 126.9
133.5
140.2
146.8
153.5
160.2
173.2 179.9 186.
166.8 173.5 180.2 186.
28.9 127.1
133.7 140.4
147. 1
153.7
160.4 167.1
173.8
180.5
187.
29.0 127.3
133.9
140.6
147.3
154.0
160.7 167.4
174. 1
180.8
187.
29.1 127.4
134. 1
140.8
147.5
154. 2
160.9 167.6
174.3
181. 1
187.
29.2 127.6
134.3
141. 1
147.8
154.5
161.2
167.9
174.6
181.3
188.
29.3 127.8
134.6
141.3
148.0
154.7
161. 4
168.2
174.9
181.6
188.
29.4 128.0
134. 8
141.5
148. 2
155.0
161.7
168.4 175.2 181.9
188
29.5 128.2
135.0
141.7
148. 5
155.2
161.9
168.7 175.4 182.2 189
29.6 128.4
135. 2
141.9
148.7
155. 4
162.2 169.0 175.7 182.5 189
29.7 128.6
135. 4
142. 1
148.9
155.7
29.8 128.8
135.6
142. 4
149.1
155.9
29.9 129.0 135.8
142.6
162.4 169.2 176.0
162.7 169.5
149.4 156.2 162.9 169.7
182.8
189
176.3
176.5
183. 1
189.
183.3
190
30.0 129.2 136. 0 142.8
176.8 183.6 190
149.6
156.4 163.2 170.0
SECTION II
EXTENSION OF TABLES 14-18 AND 47 IN HYDRAU-
LIC AND EXCAVATION TABLES, U. S. DEPARTMENT
OF THE INTERIOR, BUREAU OF RECLAMATION,
EIGHTH EDITION, 1940.
57
563189°-44- -5
58
HYDRAULIC TABLES
Table 4.-Area in square feet, A=WD, and hydraulic radius in
area
A
feet, r=
wet per.
W+2D'
of rectangular channels

Bottom
Depth
in
width
Bottom
width
Bottom
Bottom
Bottom
Bottom
4 feet
6 feet
width
8 feet
width
width
width
10 feet
12 feet
14 feet
feet
A
T
A
T
A
A
A
T
A
T
1.0
4
0.67
6
0.75
8 0.80
10
0.83
12
0.86
14
0.88
11
12
14
17
20
22
misë së eð eð di di kë dozzi E 220 P-AR* 23
1.5
6
0.86
9 1.00
2.0
8
1.00
2.5 10
1. 11
3.0
12
1.20
3.5
14
1.27
4.0
16 1.33
4.5
18
1.38
5.0 20 1.43 30 1.88
5.5
6.5
7.0
7.5
8.0 32
2 22233
22 1.47
6.0 24 1.50
26 1.53
28 1.56
30 1.58
1.60
8.5
34 1.62
9.0 36 1.64
9.5 38 1.65
10.0 40 1.67 60 2.31
44 1.69
48
1.71
52 1.73
56
1.75
60
1.76
64
1.78 96 2.53
68 1.79
102
72 1.80 108
55 880 88900 AAAWO COCONNN HEE
12
1.20
16
1.36
20
292
12 1.09
1.33
20
1. 54
1.50
24
1.71
30
1.62
28
1.87
35
24 1.71
32 2.00
27 1.80
36 2.12
40
2.22
1.94
44
2.32
36 2.00
48 2.40
2.05
52 2.48
42
2. 10
56
2.55
45
2. 14
60
2.61
48
2.18
64 2.67
2.22
68 2.72
54
2.25
72 2.77
2248394OD OBPRO8
15 1.15
18
1.20
21
1.24
1.43 24
1.50
28
1.56
25
1.67
30 1.76
35
1.84
1.88
36 2.00
42
2.10
2.06
42 2.21
40
2. 22
48 2.40
2.37
54 2.57 63
50
2.50
60 2.73
55
2.62
66
2.88 77
2.73
72
3.00
POBRES
49 2.33
56
2.55
2.74
70
2.92
3.08
84
3.23
65 2.83
78
3. 12
91
3.37
70
2.92
84
3.23
98
3.50
75
3.00
90
3.33
105
3.62
80
3.08
96
3.43
112
3.73
85
3. 15
102
3.52
119
3.84
90
3. 21
108 3.60
126
3.94
57
2.28
76
2.82
95
3.28
114 3.68
133
4.03
80
2.86
100
3.33
120 3.75
140
4. 12
66
2.36
88
2.93
110 3.44
132
3.88
154
4.28
72
2.40
96
3.00
120
3.53
144
4.00
168
4.42
78
2. 44
104
3.06
130
3.61
156
4. 11
182
4.55
84
2.47
112
3. 11
140
3.68
168
4.20
196
4.67
90 2.50
120
3. 16
150
3.75
180
4. 29
210
4.77
128
3.20
160
3.81
192
4.36
224
4.87
2.55
136
3.24
170 3.86
204
4.43
238
4.96
2.57
144
3.27
180
3.91 216
4.50
252
5.04
76 1.81 114 2.59
152 3.30
190 3.96
228 4.56
266
5.12
80 1.82 120
2.61
160 3.33
200 4.00
240 4.62
280
5.19
84 1.83 126
2.63
168 3.36
210 4.04 252 4.67
294
5. 25
88
1.83 132
2.64
i76 3.38
220
4.07
264 4.71
308
5.31
92
1.84 138
2.65 184
3.41
230
4. 11
276 4.76
322
5.37
24
96 1.85 144
2.67
192
3.43
240
4. 14
288
4.80
336
5.42
25
100 1.85 150 2.68
200
3.45
250
4. 17
300 4.84
350
5.47
26
104 1.86
156
2.69
208
3.47
260
4.19
312
4.88
364
5.52
27
108 1.86
162 2.70
216
3.48
270
4. 22
324 4.91
378
5.56
28
112 1.87
168 2.71
224
3.50
280
4.24
336
4.94
392
5.60
29
116 1.87
174❘ 2.72
232
3.52 290
4. 26
348
4.97 406
5.64
30
120 1.88
180 2.73
240
3.53 300
4. 29
360 5.00
420
5.68
31
124 1.88
186 2.74
248
3.54
310
4.31
372 5.03
434
5.71
32
128 1.88 192 2.74
256
3.56 320
4.32
384
5.05 448
5.74
33
132 1.89 198 2.75
264
3.57
330 4.34
396
5.08
462
5.78
34
136
1.89
35
140 1.89
36
144 1.89
2.77 288
204 2.76 272 3.58
210 2.76 280
216
340 4.36
408
5. 10
476
5.80
3.59
350 4.38
420
5.12
490
5.83
3.60
360
4.39
432
5.14 504
5.86
37
148 1.90
222
2.78 296
3. 61
370 4.40
444
5. 16
518
5.89
38
152 1.90
228
2.78 304
3.62
380
4.42 456
5. 18
532
5.91
39
156 1.90
234 2.79
312
3.63
390
4.43 468
5.20
546
5.93
40
160 1.90
240 2.79
320
3. 64
400 4.44
480
5. 22
560
5.96
41
164 1.91
246 2.80 328
3.64
410 4.46
492
5. 23
574
5.98
42
168 1.91
252 2.80 336
3.65
420 4.47
504
5.25
588
6.00
43
172 1.91
258 2.80 344
3.66
430 4.48
516
5. 27
602
6.02
44
176 1.91
45
180 1.92
46
184 1.92 276
47
188 1.92
48
192 1.92
264 2.81 352 3.67
270 2.81 360 3.67
2.82 368 3.68
282 2.82 376 3.69
288 2.82 384 3.69
440 4.49
528
5.28
616 6.04
450
4.50
540
5. 29
630
6.06
460
4.51
552
5.31
644
6.08
470 4.52 564
5.32
658
6.09
480
4.53
576
5.33
672
6. 11
49
6. 13
196 1.92 294 2.83
686
392 3.70
5.35
490
588
4. 54
HYDRAULIC TABLES
59
Table 4.-Area in square feet, A=WD, and hydraulic radius in
feet, r=
area
wet per.
A
W+2D'
of rectangular channels-Continued

Bottom
Bottom
Bottom
Depth
width
width
width
Bottom
width
Bottom
Bottom
width
width
in
16 feet
18 feet
20 feet
25 feet
30 feet
40 feet
feet
A
T
A
T
A
T
A
T
A
A
T
1,0
16
0.89
18
0.90
20 0.91
25
0.93
30 0.94
40 0.95
1.5
24
1. 26
27
1.29
30
1.30
38
1.34
45
1.36
60
1.40
2.0
32
1.60
36
1.64
40
1.67
50
1.72
60
1.77
80
1.82
2.5
40
1.90
45
1.95
50
2.00
62
2.08
75
2. 14
100
2. 22
3.0
48
2. 18
54
2.25
60
2. 31
75
2.42
90
2.50
120
2. 61
3.5
56
2.43
63
2.52
70
2.59
88
2.73
105
2.84
140
2.98
4.0 64
2.67
72
2.77
80
2.86
100
3. 03
120
3. 16
160
3.33
4.5
72 2.88
81
3.00
90
3. 10
112
3. 31
135
3.46
180
3.67
5.0
5.5
6.0 96
8888
80
3.08
90
3.21
100
3.33
125
3. 57
150
3.75
200
4.00
3. 26
99
3. 42
110
3.55
138
3.82
165
4. 03
220
4.31
3. 43
108
3.60
120
3.75
150
4. 05
180
4. 29
240
4.61
6.5
104
3. 59
117
3.78
130
3.94
162
4. 27
195
4. 54
260
4.91
7.0
112
3.73
126
3.94
140
4.12
175
4.48
210
4.77
280
5. 18
7.5 120
3.87
135
4.09
150
4. 29
188
4. 69
225
5.00
300
5. 46
8.0 128
4.00
144
4. 24
160
4. 44
200
4.88
240
5. 22
320
5.71
8.5
136
4. 12
153
4. 37
170
4.59
212
5.06
255
5. 43
340
5.96
9.0
144
4. 24
162
4.50
180 4.74
225
5. 23
270
5.63
360
6. 21
9.5
152
4.34
171
4.62
190 4.87
238
5. 40
285
5.82
380
6. 44
10.0
160
4. 44
180
4.74
200
5.00
250
5.56
300
6.00
400
6.67
11
176
4. 63
198
4.95
220
5. 24
275
5.85
330
6.35
440
7.10
12
192
4.80
216
5. 14
240
5.45
300
6. 12
360
6. 67
480
7.50
13
208
495
234
5.32
260
5.65
325
6.37
390
6.96
520
7.88
14
224
5.09
252 5.48 280
5.83
350 6.60
420
7.24
560 8.24
15
240
5. 22
270 5.63 300
6.00
375 6.82 450
7.50
600 8.57
16
256
5.33
288 5.76
320
6. 15
400
7.02
480 7.74
640
8.89
17
272
5.44
3061 5.88
340
6.30
425
7.20 510
7.97
680
9.19
18
288
5.54
324
6.00
360
6.43
450 7.38
540 8.18
720 9.47
19
304 5.63
342 6. 11
380
6.55
475 7.54
570 8.38
760 9.74
20
320 5.71
360
6. 212
400 6.67
500
7.69
600 8.57
800 10.00
21
336
5.79
378
6.30
420 6.77
22
352 5.87
396
6.39
440 6.88
23
368 5.94
414
6.47
460
24
384 6.00
432
6. 55
480
25
400
6.06
450
6.62
500
7.14
525 7.84 630 8.75
550 7.97 660 8.92
6.97 575 8.10 690 9.08
7.06 600 8.22 720 9.23 960 10.91
625 8.33
840 10.24
880 10.48
920 10.70
750
9.38 1,000 11.11
26
416
6. 12
468 6.69
520
7.22 650 8.44
780
9.51 1,040 11.30
27
432
6.17
486 6.75
540
7.30 675 8.54
810
9.64 1,080 11.49
28
448
6. 22
504
29
464
6.27
522
30
31
32
512
6. 40
576
6.81 560 7.37 700 8.64
6.87 580 7.44 725 8.73
480 6.32 540 6.92 600 7.50 750 8.82
496 6.36 558 6.98
775 8.91
800 8.99
840
9.77 1,120 11.67
870 9.89 1, 160
11.84
900 10.00 1,200
12.00
620 7.56
7.02 640 7.62
930 10. 11
1, 240
12. 16
960 10.21 1, 280
12. 31
33
528
6. 44
594 7.07
660
7.67
825
9.07
990 10.31 1, 320
12. 45
34
544
6.48
612 7.12
680
7.73
850
9.14 1,020 10. 41
1, 360
12.59
35
560 6.51
630 7.16
700
7.78
875
9.21 1,050 10.50
1,400
12.73
36
576 6.55
648 7.20
720
7.83
900
9.28 1,080 10. 59
1, 440
12.86
37
592 6.58
666 7.24
740
7.87
925
9.34 1, 110
10. 67
1, 480
12.98
38
608 6.61
684 7.28
760
7.92
950
9.41 1, 140
10. 75
1, 520
13.10
39
624 6.64
702 7.31
40
640 6.67 720 7.35
800
780 7.96 975
8.00 1,000
9.47 1,170 10.83 1, 560
13. 22
9.52 1,200 10.91 1, 600
13.33
41
656 6.69
738 7.38
820 8.04 1,025
9.58 1,230 10.98 1, 640
13.44
42
672 6.72
756 7.41
840
8.08 1,050
9.63 1,260 11.05 1,680
13. 55
43
688 6.75
774 7.44
860
8.11 1,075
9.68 1, 290
11.12 1, 720
13. 65
44
704 6.77
792 7.47
880
8.15 1, 100
9.73 1,320 11. 19
1, 760
13.75
45
720 6.79
810 7.50
900
8.18 1, 125
9.78 1,350 11.25 1,800
13.85
46
736 6.81
828 7.53
920
8. 21 1, 150
9.83 1,380 11.31 1, 840
13.94
47
752 6.84
846 7.55
940
8.25 1,175
48
768
6.86
864 7.58
960
8. 28 1,200
9.87 1, 410 11.37 1,880 14.03
9.92 1,440 11.43 1,920 14.12
49
8.31 1,225 9.96 1,470 11,48 1,960 14.20
784
7.60 980
6. 88
882
60
HYDRAULIC TABLES
A
W+2D'
Table 4.-Area in square feet, A=WD, and hydraulic radius in
feet, r=
Area
wet per.
of rectangular channels-Continued

Bottom
Bottom
Bottom
Depth
width
width
width
Bottom
width
Bottom
Bottom
width
width
in
50 feet
60 feet
70 feet
80 feet
90 feet
100 feet
feet
A
r
A
T
A
T
A
g
A
↑
A
g
1.0
50
0.96
60
0.97
70
0.97
80
0.98
90
0.98
100
0.98
1.5
75
1. 42
90
1.43
105
1. 44
120
1. 45
135
1.45
150
1.46
2.0
100
1.85
120
1.88
140
1.89
160
1.91
180
1.92
200
1.92
2.5
125
2.27
150
2.31
175
2.33
200
2.35
225
2,37
250
2.38
3.0
150
2.68
180
2.73
210
2.76
240
2.79
270
2.81
300
2.83
3.5
175
3. 07
210
3. 13
245
3. 18
280
3.22
315
3. 25
350
3.27
4.0
200
3.45
240
3. 53
280
3.59
320
3.64
360
3.67
400
3.70
4.5
225
3.81
270
3.91
315
3.99
360
4. 04
405
4.09
450
4. 13
5.0
250
4. 17
300
4. 29
350
4.38
400
4.44
450
4. 50
500
4. 55
5.5
275
4. 51
330
4. 65
385
4.75
440
4. 84
495
4.90
550
4.95
6.0
300
4.841
360
5.00
420
5. 12
480
5.22
540
5. 29
600
5.36
6. 5
325
5. 16
390
5.34
455
5.48
520
5.59
585
5.68
650
5.75
7.0
350
5.47
420
5.68
490
5.83
560
5.96
630
6.06
700
6. 14
7.5
375
5.77
450
6.00
525
6. 18
600
6.32
675
6. 43
750
6. 52
8.0
400
6.06
480 6.32
560
6. 51
640
6.67
720
6.79
800
6.90
8.5 425
6. 34
510 6.62
595
6. 84
680
7.01
765
7.15
850
7. 26
9.0
450
6.62
540 6.92
630
7.16
720
7.35
810
7.50
900
7.63
9.5
475
6.88
570
7.22
665
7.47
760
7.68
855
7.84
950
7.98
10.0
500
7.14
600 7.50
700
7.78
800
8.00
900
8.18 1,000
8.33
11
550
7.64
660 8.05
770
8.37
880
8.63 990
8.84 1, 100
9.02
12
600
8. 11
720
8.57
840
8.94
960
9.23
1,080
9.47 1, 200
9.68
13
650
8.55
780
9.07
910 9.48 1, 040
9. 81
1, 170
10.09 1,300
10.32
14
700
8.97
840 9.55
980
10.00
1,120
10. 37
1, 260
10. 68
10.68
1, 400
10. 94
15
750
9.38
900 10.00 1,050
10. 50
1,200
10. 91
10.91
1, 350
11. 25
1, 500
11, 54
16
800
9.76
960
10. 43
1, 120
10. 98
1, 280
11. 43
1, 440
11. 80
11.80
1, 600
12. 12
17
850 10. 12
1, 020
10. 85
1, 190
11. 44
1,360
11. 93
1, 530
12. 34
1, 700
12. 69
18
900 10.47
1, 080
11. 25
1, 260
11. 89
1, 440
12. 41
1, 620
12. 86|
1, 800
13. 24
19
950 10. 80
1, 140
11. 63
1, 330|
12. 31|
1, 520
12. 88
1,710
13.36
1, 900
13. 77
20
1,000 11. 11
1, 200
12.00
1, 400
12. 73
1, 600
13. 33
1, 800
13. 85
2, 000
14. 29
21
1,050 11. 41
1, 260
12.35
1, 470
13. 13
1, 680
13. 77
1, 890
14. 32
2, 100
14. 79
2 2 2 2 2 2 22.
22
1, 100 11.70 1, 320
12.69
1, 540
13. 51
1, 760
14. 19
1,980
14. 78
2, 200
15. 28
23
1,150 11.98 1, 380
13.02
1, 610
13. 88
1, 840
14. 60
2, 070
15. 22
2, 300
15.7
24
1,200 12. 24
1, 440
13. 33
1, 680
14. 24
1,920
15. 00
2, 160
15. 65
2, 400
16. 2
25
1,250 12.50 1,500
13. 64
1, 750
14. 58
2,000
15. 38
2, 250
16.07
2, 500
16. 67
26
1,300 12.75 1, 560
13. 93
1, 820
14. 92
2,080
15. 76
2, 340
16. 48
2, 600
17. 11
27
1,350 12.98 1, 620
14. 21
1, 890
15. 24
2, 160
16. 12
2, 430
16. 88
2, 700
17. 5
28
1,400 13. 21|
1, 680
14. 48
1,960
15. 562, 240
16. 47
2, 520
17.26
2,800 17.9
29
1,450 13. 43 1, 740
14. 75
2,030
15. 86
2, 320
16. 81
2, 610
17.64 2,900
18. 3.
30
1,500 13. 64 1, 800
15.00
2, 100
16. 15
2, 400
17. 14
2, 700
18.00 3,000 18.7
31
1, 550 13. 841, 860
15. 252, 170
16. 44
2, 480
17. 46
2, 790
18. 36
3, 100
19. 1
32
1,600 14.04 1, 920
15. 48
2, 240
2,240
16.72
16. 72
2, 560
17.78
2,880
18. 70
18.70
3, 200
19. 5
33
1,650 14. 22
1,980
15. 71
2, 310
16. 99
16.99
2, 640
18. 08
2, 970
19.04 3, 300
19. 8
34
1,700 14. 41
2,040
15. 94
2,380
17. 25|
2,720
18. 38
3,060
19.37 3, 400
20. 2
35
1,750 14. 58
2, 100
16. 15
2, 450
17. 50
2, 800
18. 67
3, 150
19. 69 3, 500
20.5
36
1, 800 14.75 2, 160
16. 36
2, 520
17.75
2, 880
18.95
3, 240
20.00
3, 600
20.9
37
1,850 14. 92| 2, 220
16. 57|
2, 590|
17.99
2, 960||
19. 22|
3,330|
20. 30|
3, 700
21. 2
38
1,900 15.08 2, 280
16.76 2, 660
18. 22
3,040
19. 49
3, 420
20. 60
3, 800
21. 5
39
1,950 15. 232, 340
16. 96 2, 730
18. 45
3, 120
19.75 3, 510
20. 89
3, 900
21. 9
40
2,000 15. 382, 400
17. 142, 800
18. 67
3, 200|
20.00| 3,600
21. 18
4,000
22. 2
41
2,050 15. 53 2, 460
17. 32 2, 870
18. 88
3, 280
20. 25
3, 690
21. 45
4, 100
22. 5
42
2,100 15. 672, 520
15.67
17.50 2,940
19.09
3, 360
20. 49
20.49|
3, 780
21. 72
21.72
4, 200
22. 8
43
2,150 15.81
2, 150 15. 81 2, 580
17.67 3, 010
19. 29
3, 440
20. 72
3, 870
21.99 4, 300
23. 1
44
2,200 15.94 2, 640
17. 84
3, 080
19. 49
3, 520
20. 95
3, 960
22. 25
4, 400
23.4
45
2,250 16.07 2, 700
18.00
3, 150|
19. 69
3, 600|
21. 18 4,050
22.50 4,500 23.
6
46
2,300 16. 202, 760
18. 16
3, 220|
19. 88|
3, 680|
21. 404, 140
22. 75
4,600 23.
47
2, 350 16.32 2, 820
322,
18. 31
3, 290
3,290|
20.06]
3, 760
21.61
21. 61 4, 230
22. 99
4, 700
24. 2
2, 49
16.55 3,920
2, 450 16. 55 2, 940
18. 61
3, 430
20. 42
3, 920
2500 16.67 3′000)
18: 75′
3′ 500|
20. 591
4. 000]
22. 02 4, 410
22.02 4, 410|
22, 22] 4, 500
23. 46
23. 46|
23. 68
4,900| 24.
5,000 25.0
48
4, 800 24.4
2,400 16. 44 23. 23
442, 880
21. 82 4, 320
21.82 4,320
18. 46
3, 840
20. 24
3, 360
3,840
HYDRAULIC TABLES
61
Table 5.-Area in
in square feet, A,
A, top
top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¼ to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A T
T
A
T
T
A
T
T
A
0.2
2.1
0.41 0.17
3.1
0.61
0.18
4. 1
0.81 0.18
5. 1
1.01
0.19
0.4 2.2
.84
.30
3.2
1.24
.32
4.2
1.64
.34
5.2
2.04 .35
0.6 2.3
1. 29
.40
3.3
1.89
.45
4.3
2.49
.48
5.3 3.09
.50
0.8 2.4
1.76
48
•
3,4
3.4 2.56
.55
4. 4
3.36
.59
5.4
4.16
.63
1.0 2.5
2.25
.55
3.5
3.25
.64
4. 5
4. 25
.70
5.5
5. 25
74
•
1.2 2.6
2.76
.62 3.6
3.96
.72
4.6
5. 16
.80
5.6
6.36
.85
1.4 2.7 3.29
67
3.7
4. 69
.80
4.7
6.09
.88
5.7 7.49
.95
1.6 2.8
3.84
.72
3.8
5. 44
.86
4.8
7.04
.96
5.8 8.64
1.04
1.8 2.9
4. 41
.77
3.9
6. 21
.93
4.9
8.01
1.04
5.9 9.81
1.13
2.0
3.0
5.00
.82
4.0
7.00
.98
5.0
9.00
1.11
6.0 11.00
1. 21
2.2 3.1
5. 61
.86
4. 1
7.81
1.04
5.1 10.01
1. 17
6.1
12. 21
1.28
2.4 3.2
6.24
.90
4.2
8.64
1.09
5.2 11.04
1. 23
6.2 13.44
1. 35
2.6 3.3 6.89
.94
4.3
9.49
1. 14
5.3 12.09
1.29
6.3 14. 69
1.42
2.8 3.4 7.56
.97
4.4 10.36
1. 18
5.4
13. 16
1.35
6.4 15.96
1.48
3.0 3.5 8.25
1.01
4.5 11. 25
1. 22
5.5 14. 25
1.40
6.5 17.25]
1. 54
3.2 3.6 8.96
1.04
4.6 12. 16
1. 27
5.6 15.36
1.45
6.6 18.56]
1.60
3.4 3.7 9.69
1.08
4.7 13.09
1.31
5.7 16.49
1.50
6.7 19.89
1.66
3.6 3.8 10.44
1. 11
4.8 14.04
1. 35
5.8 17.64
1.54
6.8 21. 24
1.71
3.8 3.9 11. 21
1. 14
4.9 15.01
1.39
5.9 18.81
1.59
6.9 22.61
1.76
4.0
4.0 12.00
1. 17
5.0 16.00
1.42
6.0 20.00
1.63
7.0 24.00
1.81
4.2
4. 1
12.81
1.20
5.1 17.01
1.46
6.1 21. 21
1.68
7.1 25. 41
1.86
4.4
4.2 13. 64
1. 23
5.2 18.04
1.49
6.2 22.44
1.72
7.2 26.84
1.91
4. 6
4.3 14. 49
1. 26
5.3 19.09
1.53
6.3 23.69
1.76
7.3 28. 29
1.95
4.8
4.4 15.36
1.29
5.4 20. 16
1. 56
6.4 24.96
1.80
7.4 29.76
2.00
5.0 4.5 16. 25
1. 32
5.5 21. 25
1.60
6.5 26. 25
1.83
7.5 31.25
2.04
5.2 4.6 17. 16
1.35
5.6 22.36
1. 63
6.6 27.56
1.87
7.6 32.76
2.08
5.4 4.7 18.09
1. 38
5.7 23.49
1.66
6.7 28.89
1.91
7.7 34. 29
2. 13
5.6 4.8 19.04
1.41
5.8 24.64
1.69
6.8 30.24
1.95
7.8 35.84
2. 17
5.8 4.9 20.01
1.43
5.9 25.81
1.73
6.9 31.61
1.98
7.9 37.41
2.21
6.0
5.0 21.00
1.46
6.0 27.00
1.76
7.0 33.00
2.02
8.0 39.00
2.25
6.2
5. 1 22.01 1.49
6.1 28. 21
1.79
7.1 34. 41
2.05
8.1 40. 61
2. 28
8.4
5.2 23.04
1.52
6.2 29.44
1.82
7.2 35.84
2.08
8.2 42. 24
2.32
6.6 5.3 24.09
1. 54
6.3 30.69 1.85
7.3 37.29
2. 12
8.3 43.89
2.36
6.8
5.4 25. 16
1.57
6.4 31.96 1.88
7.4 38.76
2.15
8.4 45.56
2.40
7.0 5.5 26. 25
7.5 5.7 29.06
1.60 6.5 33.25
1.91
7.5 40.25
2. 18
8.5 47.25
2.43
1.66 6.7 36. 56
1.98
7.7 44.06
2.26
8.7 51.56
2. 52
8.0
6.0 32.00
1.73 7.0 40.00
2.05
8.0 48.00
2.34
9.0 56.00
2. 61
8.5 6.2 35.06
1.80
7.2 43. 56
2. 12
8.2 52.06 2. 42
9.0 6.5 38. 25
1.86
7.5 47.25
2. 19
8.5 56.25
2.49
9.2 60.56 2. 69
9.5 65.25
2.77
9.5 6.7 41.56
1.93
7.7 51.06
2.26
8.7 60.56
2.57
10.0 7.0 45.00
1.99
8.0 55.00
2. 33
9.0 65.00
2. 64
9.7 70.06 2.85
10.0 75.00 2.93
10. 5 7.2 48.56
10.2 80.06 3.00
2. 05
2.71
8.2 59.06
9.2 69. 56
2.40
62
HYDRAULIC TABLES
Table 5.—Area
·Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
A
T
Τ
A
T
A
T
A
T
0.2
6. 1
1.21
0.19
7.1
1.41 0.19
8. 1
1.61
0.19
9.1
1.81 0.19
0.4
6.2
2.44
.36 7.2
2.84
.36
8.2
3.24 .37
9.2
3. 64
.37
0.6
6.3
3.69
.51
7.3
4. 29
.52
8.3
4.89
53
9.3
5.49
.54
0.8
6.4
4.96
.65
7.4
5.76
.67
8.4
6.56
.68
9.4
7.36
.69
OR
qui voi poi qui vi
1.0
1.2
1.4
1.6
1,8
6. 5
6.25 .78
7.5
7. 25
.80
8.5
8.25
.82
9.5
9.25
.84
6.6
7.56
.89
7.6
8.76
.92
8.6 9.96
.95
9.6 11. 16
.97
6.7 8.89 1.00
7.7 10.29
1.04
8.7 11.69
1.07
9.7 13.09 1.10
GO GO
6.8 10.24 1.10
7.8 11.84
1. 15
8.8
13. 44
1. 19
9.8 15.04 1. 22
6.9 11.61
1.20
7.9 13. 41
1.25
8.9 15.21
1.30
9.9 17.01 1.34
2.0
7.0 13.00
1.28
8.0 15.00
1.35
9.0 17.00
1.40
10.0 19.00 1.45
2.2
7. 1 14. 41
1.37
8.1 16. 61
1.44
2.4
7.2 15.84
1.45
8.2 18.24
1. 53
2.6
7.3 17.29
1.52
8.3 19.89
1. 61
2.8
7.4 18.76
1.59
8.4 21.56
1.69
9.1 18.81
9.2 20.64 1.59
9.3 22.49 1.68
9.4 24.36
1.50
10.1 21.01 1.55
10.2 23.04 1.65
1.77
10.3 25.09 1.75
10.4 27.16 1.84
3.0
7.5 20.25
1.66
8.5 23. 25
1.76
9.5 26.25
1.85
10.5 29.25 1.93
3.2 7.6 21.76 1.73
8.6 24.96
1.84
9.6 28. 16
1.93
10.6 31.36 2.01
3.4
7.7 23.29 1.79
8.7 26.69
1.91
9.7 30.09
2.00
10.7 33.49 2.09
3.6
7.8 24.84
1.85
8.8 28.44
1.97
9.8 32.04
2.08
10.8 35.64 2.17
3.8
7.9 26.41
1.91
8.9 30.21
2.04
9.9 34. 01
2. 15
10.9 37.81 2.25
4.0
8.0 28.00
1.97
9.0 32.00
2.10
10.0 36.00)
2.22
4.2 8.1 29.61
2.02
9. 1
33.81
2. 16
10.1 38.01
2.28
11.0 40.00 2.32
11. 142. 21 2.39
4.4
8.2 31. 24
2.07
9.2 35. 64
2.22
10.2 40.04
2.35
11.2 44. 44 2.46
4.6
8.3 32.89
2.12
9.3 37.49
2.27
10.3 42.09.
2.41
11.3 46. 69] 2.53
4.8
8.4 34.56
2.17
9.4 39.36
2.33
10.4 44. 16
2.47
11.4 48.96 2.59
5.0
8.5 36.25
2. 22
9.5 41. 25
2.38
10.5 46.25
2.53
11.5 51.25 2.65
5.2
8.6 37.96
2. 27
9.6 43. 16
2.44
10.6 48.36
2.58
11.6 53.56 2.72
5.4
8.7 39.69
2.32
9.7 45.09
2.49
10.7 50.49
2.64
11.7 55.89) 2.78
5.6
8.8 41.44
2.36
9.8 47.04
2.54
10.8 52.64
2.69
11.8 58.24 2.83
5.8
8.9 43.21
2.41
9.9 49.01
2.59
10.9 54.81
2.75
11.9 60.61 2.89
6.0
9.0 45.00
2.45
10. 0 51.00
2.63
11.0 57.00]
2.80
12.0 63.00) 2.95
6.2
9. 146. 811
2.49
10. 1 53.01
2.68
11.1 59. 21
2.85
12. 165. 41 3.00
6.4
9.2 48.64
2.53
10.2 55.04 2.73
11.2 61.44
2.90
12.2 67.84 3.06
6.6 9.3 50.49
2. 58
10.3 57.09 2.77
11.3 63.69
2.95
12.3 70.29 3.11
6.8
9.4 52.36
2.62
10.4 59.16 2.81
11.4 65.96
3.00
12.4 72.76 3.16
7.0 9.5 54.25
2.66
10.5 61.25
2.86
11.5 68.25
3.04
12.5 75.25 3.21
7.5 9.7 59.06
8.0 10.0 64.00 2.85 11.0 72.00
2.75 10.7 66. 56
2.96
11.7 74.06
3. 16
12.7 81.56) 3.33
3.06
12.0 80.00
3. 27
13.0 88.00 3.45
8.5 10.2 69.06
2.94 11.2 77.56
3. 16
12.2 86.06
3.37
13.2 94.56| 3.57
9.0 10.5 74. 25
3.02
11.5 83. 25.
3.26
12.5 92.25
3.47
13. 5101.25 3.67
9.5 10.7 79.56
10.0 11.0 85.00 3. 19
3. 11
11.7 89.06
3. 35
12.7 98.56
3.57
13.7 108.06) 3.78
12.0 95.00
3.44
13.0 105.00
3.67
14. 0115.00 3.88
10,5 11.2 90.56| 3.28
14. 2122.06 3.98
12. 2 101.06
3.76
3.53
13. 2111. 56
HYDRAULIC TABLES
63
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A T
T
A
до
T
A
T
T
A
0.2 10.1
2.01
0.19
12.1
2. 41
0.19
14. 1
2.81
0.19
16.1
3.21 0.20
0.4
10. 2
4.04
.37
12.2
4.84
.38
14.2
5. 64
.38
16. 2
6.44 .38
0.6
10.3
6.09
54
12.3
7.29
.55
14.3
8.49
·
.56
16. 3
9.69
.56
0.8
10.4 8.16
.70
12.4 9.76
.72
14.4 11.36
.73
16.4 12.96
.73
1.0 10.5 10.25
.85
12.5 12. 25
.87
14.5 14.25
.89
16.5 16.25 .90
1.2
10.6 12.36 .99
12.6 14.76
1.02
14.6 17.16
1.04
16.6 19.56 1.06
1.4
10.7 14.49 1.12
12.7 17.29
1.16
14.7 20.09
1.19
16.7 22.89 1.21
1.6
10.8 16.64
1.25
12.8 19.84
1.30
14.8 23.04
1.33
16.8 26.24 1.36
1.8
10.9 18.81
1.37
12.9 22.41
1.43
14.9 26.01
1.47
16.9 29.61 1.50
2.0
11.0 21.00 1.49
13.0 25.00
1.55
15.0 29.00
1.60
17.0 33.00 1.64
2.2 11.1 23.21 1.60
2.4 11.2 25.44 1.70
2.6 11.3 27.69 1.80
2.8 11.4 29.96
13.1 27.61
1.67
15.1 32.01
1.73
17.1 36.41 1.77
13.2 30.24
1.78
15.2 35.04|
1.85
17.2 39.84 1.90
13.3 32.89
1.89
15.3 38.09
1.97
17.3 43.29 2.03
1.90
13.4 35.56
2.00
15.4 41.16
2. 08
17.4 46.76 2.15
3.0 11.5 32.25
1.99
13.5 38. 25
2.10
3.2 11.6 34.56
2.08
13.6 40.96|
2. 201
15.5 44.25| 2.19
15.6 47.36 2.30
17.5 50.25 2.27
17.6 53.76 2.38
3.4
11.7 36.89
2.17
13.7 43.69
2.30
15.7 50.49 2.40
17.7 57.29| 2.49
3.6
11.8 39.24
2.25
13.8 46.44
2.39
15.8 53.64
2.50
17.8 60.84 2.60
3.8 11.9 41.61
2.33
13.9 49.21
2.48
15.9 56.81
2.60
17.9 64.41 2.70
4.0
12.0 44.00
2.41
14.0 52.00
2.57
16.0 60.00
2.70
18.0 68.00 2.80
4.2
12. 1 46.41
2.49
14. 1 54.81
2.65
16.1 63. 21
2.79
18.1 71.61 2.90
4.4
12.2 48.84
2. 56
14.2 57.64
2.74
16.2 66. 44
2.88
18.2 75. 24 3.00
4.6
12.3 51.29
2. 63
14.3 60.49
2.82
16.3 69.69
2.97
18.3 78.89 3.10
4.8
12.453.76
2.70
14.4 63.36 2.89
16.4 72.96
3.05
18.4 82. 56 3.19
5.0
12.5 56.25
2.77
14.5 66.25|
2.97
16.5 76.25|
3. 14
18.5 86.25 3.28
5.2
12.6 58.76 2.84
14.6 69.16
3.04
16.6 79.56
3.22
18.6 89.96 3.37
5.4 12.7 61.29 2.90
14.7 72.09
3. 12
16.7 82.89
3.30
18.7 93.69 3.45
5.6
12.8 63.84 2.96
14.8 75.04
3.19
16.8 86.24
3.38
18.8 97.44 3.54
5.8
12.9 66.41 3.02
14.9 78.01
3. 26
16.9 89.61
3.45
18.9101.21 3.62
6.4
6.6
6.0
13.0 69.00 3.08
6.2 13.1 71.61 3.14
13.2 74.24 3.20
13.3 76.89 3.26
6.8
13.4 79.56
3.31
15.0 81.00 3.32
15.1 84.01 3.39
15.2 87.04| 3.45
15.3 90.09 3.52
15.4 93.16
17.0 93.00
3.53
19.0 105.00 3.70
17.1 96.41
3.60
17.2 99.84
3.67
17.3103.29
3.74
3.58
17.4 106.76
3.81
19. 1108.81 3.78
19. 2112. 64 3.86
19.3116.49 3.93
19.4120. 36 4.01
7.0
13.5 82.25
3.37
15.5 96.25
3.64
17.5 110. 25
3.88
7.5 13.7 89.06
3.50
15.7104.06
3.79
3.79
17.7119.06
4.04
8.0
14.0 96.00
3.62
16.0112.00
3.93
18.0 128.00
4.20
8.5
14. 2103. 06
3.74
16. 2120.06
4.07
18. 2137.06
4.35
19. 5124.25 4.08
19.7134.06 4.26
20.0144.00 4.43
20. 2154.06 4.60
9.0 14. 5110.25
3.86
16. 5128.25
4.20
18. 5146.25
4.49
20.5164.25 4.75
9.5
14.7117.56
3.97
16.7136. 56
4.32
10.0
15.0 125.00
4.08
17.0 145.00
4. 45
18.7155.56 4.63
19.0165.00l 4.77
20.7174.56 4.91
21.0185.00 5.05
10.5
21. 2195.56 5.19
2195
15. 2132. 56
19.2174.56 4.90
4.19
4.56
17.2153.56
64
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
→
T
A 2
T
A
T
→
T
A
0.2
18. 1
3. 61
0.4
18.2
7.24
0.20 20.1 4.01
.38 20.2 8.04
0.20 22.1
.39 22.2 8.84)
4.41 0.20
24. 1
4.81 0.20
.39
24. 2
9.64 .39
0.6
18.3 10.89
.57
20.3 12.09
.57
22.3 13.29
.57
24.3 14.49 .57
0.8
18.4 14. 56
.74
20.4 16. 16
.75
22.4 17.76
.75
24.4 19.36 .75
1.0
18.5 18.25
.91
20.5 20.25
.92
22.5 22. 25
.92
24.5 24. 25
.93
1.2
18.6 21.96
1.07
20.6 24.36
1.08
22.6 26.76
1.09
24.6 29.16 1.10
1.4 18.7 25. 69
1.23
20.7 28.49
1. 24
22.7 31.29
1.26
24.7 34.09 1.27
1.6 18.8 29.44|
1.38
20.8 32.64
1.40
22.8 35.84
1.42
24.8 39.04 1.43
1.8
18.9 33.21
1. 53
20.9 36.81
1.55
22.9 40.41
1.57
24.9 44.01 1.59
2.0
19.0 37.00
1.67
21.0 41.00
1.70
23.0 45.00
1.72
25.0 49.00 1.74
2.2 19.1 40.81
1.81
21.1 45. 21
1.84
23.1 49.61
1.87
25. 154.01 1.89
2.6
2.8
2.4 19.244.64] 1.95
19.3 48.49
19.4 52.36
21.2 49.44
1.98
23.254.24
2.01
25.2 59.04 2.04
2.08
21.3 53.69
2.12
23.3 58.89
2.15
25.3 64.09 2.18
2.20
21.4 57.96|
2.25
23.4 63.56
2.29
25.4 69.16 2.32
3.0 19.5 56.25
3.2 19.6 60.16 2.45
3.4 19.7 64.09 2.56
3.6 19.8 68.04 2.68
3.8 19.9 72.01 2.79
2.33
21.5 62.25
2.38
23.5 68.25
2.42
25.5 74.25 2.46
21.6 66.56|
2.50
23.6 72.96|
2.55
25.6 79.36 2.59
21.7 70.89
2.62
23.7 77.69
2.68
25.7 84.49 2.72
21.8 75.24
2.74
23.8 82.44
2.80
25.8 89.64 2.85
21.9 79.61|
2.86
23.9 87.21
2.92
25.9 94.81 2.98
4.2
4.0 20.0 76.00 2.90
20.1 80.01 3.00
22.0 84.00
2.97
24.0 92.00
3.04
22.1 88.41
3.08
24. 1 96. 81
3. 16
4.4 20.2 84.04 3. 10
22.2 92.84
3. 19
24. 2101.64
3.27
4.6
20.3 88.09
3. 21
22.3 97.29]
3.30
24.3106.49
3.38
4.8
20. 492.16
3.30
22.4 101. 76|
3.40
24.4111.36
3.49
26.0 100.00 3.10
26.1|105. 21 3. 22
26. 2110.44 3.34
26.3115.69 3.46
26.4 120.96 3.57
5.0 20.5 96.25
3.40
22. 5106. 25
3. 51
24. 5116, 25
3.60
26. 5126.25 3.68
•
5.2
20. 6/100.36
3.49
22.6 110. 76
3. 61
24.6 121.16
3.70
26.6131.56 3.79
5.4
20.7 104.49
3.59
22.7115. 29
3.70
24.7|126. 09|
3.81
26.7 136.89 3.90
5.6
20.8108.64
3.68
22.8119.84
3.80
24.8131. 04]
3.91
26.8142. 24 4.00
5.8 20.9 112.81
3.77
22. 9124. 41
3.89
24.9136. 01|
4.01
26.9147.61 4.11
6.0 21. 0117.00)
3.85
23.0129.00
3.99
25.0141.00
4.10] 27.0153.00 4.21
6.2
21. 1121, 21
3.94
23. 1133.61
4.08
25. 1146. 01
4.20
27.1158.41 4.31
6.4 21. 2125. 44
4.02
23. 2138. 24
4. 16
25. 2151.04]
4.29
27. 2163.84 4.41
6.6
21.3129.69
4. 10
23. 3 142. 89
4. 25
25.3156.09
4.38
6.8
21.4 133.96
4.18
23.4 147. 56|
4. 34
25. 4161. 16
4.47
27.3 169. 29 4.50
27.4174.76 4.60
7.0
21.5 138. 25
4. 26
23. 5152. 25
4.42
25.5|166. 25|
4. 56
27.5180.25 4.69
7.5
21.7 149. 06
4.45
23.7164.06
4.63
25.7179.06)
4.78
27.7194.06 4.92
8.0
22.0 160.00
4.64
24.0 176.00)
4.82
26.0192. 00
4.99
8.5
22. 2 171.06
4.82
24. 2 188.06
5.01
26.2 205.06
5. 19
9.0
22.5 182. 25
4.99
24.5 200.25
5.19
26. 5 218. 25
5.38
9.5
22.7193.56
5. 15
24. 7212. 56
5.37
26.7231.56
5. 57
10.0
23.0205.00
5.31
25.0 225.00
5. 54
27.0245.00
5.75
28.0208.00 5.14
28.2222.06 5.35
28.5 236.25 5.55
28.7 250.56 5.75
29.0 265.00 5.94
10.5
29.2279. 56 6. 12
23.2216. 56|
5.92
5.46
27. 2258. 56
25.2|237. 56|
5.70
HYDRAULIC TABLES
65
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
Bottom width
26 feet
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
સ
A
T
T
A
T
T
Α
T
0.2
26.1
5.21 0.20
28. 1
5. 61
0.20 30.1 6.01
0.20
32. 1
6.41 0.20
0.4
26. 2 10.44
.39
28.2 11. 24
•
.39 30.2 12.04
.39
32. 2 12.84]
.39
0.6
26.3 15. 69
.58
28.3 16.89
.58
30.3 18.09
.58
32.3 19.29 .58
0.8 26.4 20.96
.76
28.4 22.56
.76
30.4 24. 16|
.76
32.4 25.76 .77
1.0 26.5 26. 25
.94
28.5 28. 25
94
30.5 30. 25
94
32.5 32.25
.95
•
1.2
26.6 31.56
1. 11
28.6 33.96
1. 11
30.6 36.36
1. 12
32.6 38.76 1. 12
1.4
26.7 36.89
1. 28
28.7 39.69
1.29
30.7 42.49
1.29
32.7 45. 29 1.30
1.6
26.8 42.24
1. 44
28.8 45.44
1. 45
30.8 48.64
1.46
32.8 51.84 1.47
1.8 26.9 47.61
1.60
28.9 51.21
1.61
30.9 54.81
1.63
32.9 58.41 1.64
2.0
27.0 53.00
1.76
29.0 57.00
1.77
31.0 61.00
1.79
33.0 65.00 1.80
2.2
27.1 58.41
1.91
29.1 62.81
1.93
31.1 67. 21
1.95
33. 1 71.61| 1.96
2.4 27.2 63.84
2.06
29.2 68.64|
2.08
31.2 73. 44
2.10
33.2 78. 24 2.12
2.6 27.3 69.29
2. 21
29.3 74.49
2. 23
31.3 79.69
2.25
33.3 84.89 2. 27
2.8
27.4 74.76
2.35
29.4 80.36
2.38
31.4 85.96
2.40
33.4 91.56 2.42
3.0
27.5 80.25
2.49
29.5 86.25
2.52
31.5 92.25
2.55
33.5 98.25 2.57
3.2
27.6 85.76 2.63
29.6 92. 16
2.66
31.6 98.56
2.69
3.4
27.7 91.29 2.77
29.7 98.09
2.80
31.7 104.89
2.83
3.6 27.8 96.84
2.90
29.8 104.04
2.94
31.8 111. 24
2.97
3.8
27.9 102. 41
3.03
29.9110. 01
3.07
31.9 117.61
3. 11
4.0
28.0 108.00)
3. 15
30. 0 116. 00
3. 201
32. 0124.00
3. 24
4.2
28. 1113. 61
3. 28
30.1122. 01
3. 33
32. 1130. 41
3.37
33.6 104.96 2.72
33.7111.69 2.86
33. 8118. 44 3.00
33.9125.21 3.14
34. 0132.00 3.28
34. 1138. 81
3.41
4.4
28. 2119. 24
3.40
30. 2128.04
3.45
32. 2136. 84|
3.50
34. 2145. 64
3.55
4.6
28. 3124.89
3.52
30. 3134. 09
3.58
32.3 143. 29|
3.63
34.3 152. 49
3.68
4.8
28. 4130. 56
3.64
30. 4140. 16
3.70
32. 4149.76
3.75
34. 4159. 36
3:80
5.0
28.5136. 25
3.75
30. 5146. 25
3.82
32.5 156. 25
3.88
34. 5166. 25
3.93
5.2
28. 6141.96
3.87
30.6152.36
3.93
32. 6162.76
4.00
34. 6173. 16
4.05
5.4
28.7147.69
3.98
30.7 158. 49
4. 05
32.7 169. 29
4. 12
34. 7180. 09
4.18
5.6
28.8153.44
4.09
30.8164.64
4. 16
32.8175.84
4. 23
34.8187.04 4.30
5.8
28.9 159. 21
4. 19
30.9170.81
4. 27
32.9 182. 41
4. 35
34.9194. 01 4.41
6.0
29.0165.00
4.30
31.0177.00
4.38
33.0 189.00
4.46
35.0 201.00 4.53
6.2
29. 1170.81
4.40
31. 1183. 21
4.49
33. 1195. 61
4.57
6.4
29. 2176. 64
4. 51
31. 2189. 44
4.60
33. 2 202. 24
4. 68
6.6
29.3 182.49
4. 61
31. 3195.69
4.70
33.3 208.89
4.79
6.8
29. 4188.36
4. 71
31. 4 201.96
4.81
33.4 215. 56
4.90
7.0
29. 5 194. 25
4.80
31.5208. 25
4.91
33.5222. 25
5.00
7.5
29.7209.06
5.04
31.7 224. 06
5. 16
33.7 239.06|
5.26
8.0 30.0 224.00
5. 27
32.0 240.00
5.39
34.0 256.00
5. 51
8.5
30. 2239. 06
5.49
32. 2256.06
5.62
34. 2273.06
5.75
9.0
30.5254.25
5.71|
32. 5272. 25
5.85
34.5 290. 25
5.98
9.5
30.7269.56
5.91
32.7288.56
6.06
34.7307.56
6. 20
10.0
31.0 285.00 6. 11
33. 0305.00
6.27
35.0325.00
6.42
35. 1208.01 4.64
35. 2215.04 4.76
35.3 222.09 4.87
35.4229. 16 4.98
35.5236.25 5.09
35.7 254.06 5.35
36.0 272.00) 5.61
36. 2290. 06 5.86
36.5308. 25 6. 10
36.7326.56 6.33
37.0345.00 6.56
10.5
37. 2363.56 6.78
31. 2300.56|
6.63
6.31
35. 2342. 56
33. 2321.56 6.48
66
HYDRAULIC TABLES
feet,
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued
T,
T, and
¼

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
A go
T
A
T
A r
0.2
35.1 7.01 0.20
0.4 35.2 14.04 .39
0.6 35.3 21.09 .58
40.1 8.01
0.20
45. 1
9.01
0.20
50.1 10.01 0.20
40.2 16.04
.39
45.2 18.04
.39
50.2 20.04)
.39
40.3 24.09
.58
45.3 27.09
.59
50.3 30.09
.59
0.8
35.4 28.16
.77
40.4 32.16
.77
45.4 36.16
.78
50.4 40. 16
.78
1.0
35.5 35.25
.95
40.5 40.25
.96
45.5 45.25
.96
50.5 50.25 .97
1.2
35.6 42.36 1.13
40.6 48.36
1.14
45.6 54.36 1.15
50.6 60.36 1.15
1. 4
35.7 49.49
1.31
40.7 56.49
1.32
45.7 63.49
1.33
50.7 70.49 1.33
1.6
35.8 56.64
1.48
40.8 64.64
1.49
45.8 72.64
1.50
50.8 80.64 1.51
1.8 35.9 63.81
1.65
40.9 72.81
1.67
45.9 81.81
1.68
50.9 90.81 1.69
2.0 36.0 71.00 1.81
2.2 36.1 78.21 1.98
2.4 36.2 85.44 2.14
2.6 36.3 92.69
41.0 81.00
1.84
46.0 91.00
1.85
41.1 89.21
2.00
46. 1100. 21
2.02
41.2 97.44
2.17
46. 2109. 44
2. 19
2.30
41.3105. 69
2. 33
46.3118.69)
2.36
2.8
36.4 99.96
2.45
41.4 113.96
2.49
46.4 127.96
2.52
3.0
36.5 107.25
2. 60
41.5 122. 25
2.65
46.5 137.25
2.68
3.2
36.6114.56
2.75
41.6130.56
2.80
46. 6 146. 56
2.84
3.4
36.7121.89
2.90
41.7138.89
2.95
46.7 155.89
3.00
3.6
36.8129. 24
3.05
41.8147. 24
3. 10
46.8165. 24
3. 15
3.8
36.9136. 61
3. 19!
41.9 155. 61
3.25
46.9174. 61
3.30
51.0 101.00 1.87
51. 1111. 21 2.04
51.2121.44 2.21
51.3131.69 2.38
51.4141.96 2.55
51.5 152.25 2.71
51.6162.56 2.87
51.7 172.89 3.03
51.8183.24 3.19
51.9193. 61 3.35
4.0
37.0144.00
3.33
42.0 164.00
3.40
47.0 184.00
3.46
52.0 204.00 3.50
4.2
37. 1151. 41
3.47
42. 1172. 41
3.54
47. 1193. 41
3.60
52. 1214. 41| 3.66
4. 4
37.2158.84) 3.60
42.2180.84
3.69
47.2 202.84
3.75
52. 2224.84 3.81
4.6
37.3166. 29|
3.74
42.3189.29
3.83
47.3 212.29
3.90
4.8
37.4173.76
3.87
42.4197.76
3.96
47.4221, 76|
4.04
5.0
37.5181.25
4.00
42.5 206. 25
4. 10
47.5231.25
4. 18
5.2
37.6 188.76)
4. 13
42. 6214.76
4. 23
47.6 240.76]
4.32
5.4
37.7196. 29,
4. 25
42.7 223.29
4.37
47.7 250. 29
4.46
5.6
37.8203.84
4.38
42.8231.84
4.50
47.8 259.84
4.60
5.8
37.9 211. 41|
4.50
42.9 240. 41
4.63
47.9 269. 41
4.73
52.3 235.29 3.96
52.4245, 76|| 4. 10
52.5 256.25 4.25
52.6266.76 4.39
52.7 277.29 4.54
52.8287.84 4.68
52.9 298.41 4.82
6.0
38.0219.00
4.62
43.0249.00
4.75
48.0 279.00
4.86
6.2
38. 1226. 61
4.74
43. 1257. 61
4.881
48. 1288.61]
4.99
6.4
38.2 234.24
4. $6
43.2 266.24
5.01
48.2 298. 24
5. 12
6.6
38.3241.89
4.98
43.3 274.89
5. 13
48.3 307.89
5. 25
53.0309.00 4.95
53. 1319.61 5.09
53.2330.24 5.23
53.3340.89 5.36
6.8
38.4249.56
5.09
43.4283.56
5. 25
48. 4317.56
5.38
53.4351.56 5.49
7.0
38.5257.25
5.20
43.5 292. 25
5.37
48. 5327.25
5. 51
53.5362.25 5.62
7.5
38.7276.56
5.48
43.7314.06]
5.66
48.7351. 56
5.81
53.7389.06 5.94
8.0
39.0 296.00!
5.75
44.0336.00
5.95
49.0376.00
6. 11
54.0416.00) 6.26
8.5
39.2315.56|
6.01
44. 2358.06
6. 22
49. 2400. 56
6.41
54, 2443.06 6.56
9.0 39.5.335. 25
6.26
44.51380. 25
6.49
49.5425. 25
6.69
54. 5470. 25 6.86
9.5
39.7355.06}
6.50
44.7402. 56|
6.76
49.7450.06
6.97
10.0
40.0375.001
6.74
45.0 425.00
7.01
50.0475.00
7.24
55.0 525.00 7.43
54.7497.56 7.15
10.5
55.2552.56 7.71
40. 2395.06
7.50
6.97 45. 2447.56
50.2 500.06,
7.26
HYDRAULIC TABLES
67
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels.
side slopes 14 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
↑
T
A
T
A T
T
A
T
0.2 60. 1 12.01
0.20
70. 1 14. 01
ees
0.4
60.2 24.04
.40
70.2 28.04
0.20 80.1 16.01
.40 80.2 32.04
0.20
90.1 18.01 0.20
•
40 90.2 36.04 .40
0.6 60.3 36.09
.59
70.3 42.09
.59
80.3 48.09
59
90.3 54.09
.59
0.8 60.4 48. 16
.78
70.4 56. 16
.78
80.4 64. 16
.79
90.4 72. 16
.79
1.0 60.5 60.25
.97
70.5 70.25
.97
80.5 80.25
.98
90.5 90.25
.98
1.2
60.6 72.36
1. 16
70.6 84.36]
1. 16
80.6 96.36
1. 17
90. 6108. 36
1.17
1,4 60.7 84.49
1.34
70.7 98.49
1.35
80.7112.49
1.36
90. 7126. 49
1.36
1.6
60.8 96.64|
1.53
70.8 112. 64
1.54
80.8 128.64
1.54
1.8
60. 9 108.81
1.71
70.9126.81
1.72
80.9 144. 81
1.73
2.0
61.0 121.00
1.89
71. 0141.00
1.90
81. 0161.00
1.91
2,2
61. 1133. 21
2.06
71. 1155. 21
2.08
81. 1177.21
2. 10
2.4
61. 2145. 44
2. 24
71. 2 169. 44
2. 26
81. 2193. 44
2. 28
2.6
61.3 157.69
2. 41
71. 3183. 69
2.44
81.3 209.69
2. 46
2.8
61.4 169.96
2. 58
71.4197.96
2.61
81.4225.96|
2.63
3.0
61.5 182.25
2.75
71.5212. 25
2.79
81.5 242.25
2.81
3.2
61. 6194. 56
2.92
71.6 226. 56
2.96
81.6258.56
2.99
3.4
61.7 206.89
3.09
71. 7 240. 89
3. 13
81.7 274.89
3. 16
3.6
61.8219. 24
3.25
71, 8255.24
3.30
81.8291. 24|
3.33
3.8
61.9 231.61
3.41
71.9 269. 61|
3.46
81.9307.61
3.50
4. 0
62.0244.00|
3.58
72.0 284.00
3.63
82. 0324.00
3. 67
4.2
62. 1256. 41
3.73
72.1298. 41
3.79
82. 1340. 41
3.84
4.4
62. 2268.841
3.89
72. 2312.84
3.96
82.2356.84
4. 01
4.6
62.3 281.29
4.05
72.3327. 29
4. 12
82.3 373. 29
4. 17
4.8
62.4 293.76
4.20
72.4341. 76
4. 28
82.4389.76]
4.34
5.0
62. 5306. 25
4.36
72.5356. 25
4. 44
82.5 406.25
4. 50
5.2
62.6318. 76
4.51
72. 6370. 76
4.59
82. 6 422.76
4. 66
5.4
62.7331.29
4.66
72.7|385. 29
4.75
82.7 439. 29
4.82
5.6
62. 8343.84
4. 81
72.8399.84
4.90
82.8455.84
4.98
5.8
62.9356. 41
4.95
72. 9414. 41
5.06
82.9 472. 41
5. 14
90. 8144.64 1.55
90.9 162.81 1.74
91.0181.00 1.92
91. 1199. 21 2.11
91.2217. 44 2. 29
91.3235. 69 2.47
91. 4253. 96 2.65
91.5 272.25 2.83
91.6290.56 3.01
91.7308.89 3. 18
91. 8327. 24 3.36
91.9345. 61 3.53
92. 0364.00 3.70
92.1382.41 3.88
92.2400.84 4.05
92. 3419. 29 4.21
92.4437.76 4.38
92.5 456. 25 4. 55
92. 6474.76 4.71
92.7493. 29 4.88
92.8511.84 5.04
92.9530.41 5. 20
6.0
63.0369.00
5. 10
73.0429.00
5. 21
83.0489.00j
5. 29
93.0549.00 5.36
6.2
63. 1381. 61
5.24
73. 1443. 61
5.36
83.1505. 61
5. 45
6.4
63. 2394. 24
5.39 73. 2458. 24
5. 51
83. 2522. 24
5.60
6.6
63.3406.89
5.53 73. 3 472. 89
5. 66
83.3 538.89
5. 76
6.8
63.4419.56
5.67
73. 4487. 56
5.80
83.4|555.56
5. 91
7.0
63.5 432.25
5.81
73.5 502. 25
5.95
83.5572. 25|
6.06
7.5
63.7 464. 06
6.15
73.7 539.06
6. 31
83.7614.06
6. 43
8.0
64. 0 496.00
6.48
74. 0576.00]
6.66
84.0656.00
6.80
8.5
64.2528. 06
6. 81
74. 2613.06
7.00
84.2698. 06]
7.16
9.0
64.5560. 25|
7. 13
74.5 650.25
7.34
84.5740. 25|
7.51
9.5
64.7 592. 56
7.45
74.7687.56
7.67
84.7782. 56
7.86
10.0
65.0 625.00
7.75
75.0 725.00
8.00
85.0825.00
8. 20
93. 1567.61 5.52
93. 2586. 24 5.68
93.3 604.89 5.84
93. 4623.56 5.99
93.5642. 25 6.15
93.7689.06 6.53
94.0736.00| 6.91
94. 2783. 06 7.28
94.5830. 25 7.65
94.7877.56 8.01
95.0925.00 8.36
10.5
95. 2972. 56 8.71
65. 2657.56
265
8.54
85.2867. 56
8.05
8.32
75.27622762. . 56
68
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued
T, and

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
A ↑ T
A
T
T
A
0.2 100.1
20.01
0.20 110. 1
0.4 100. 2
0.6 100. 3]
0.8 100. 4
40.04
.40 110. 2
60.09
.59 110. 3
80.16
.79 110.4
1.0 100.5
1.2 100.6
1.4 100.7 140.49
1.6 100.8 160.64
1.8 100.9
100. 25
.98 110.5
120.36
2.0 101.0
2.2 101. 1
2.4 101. 2
2.6 101.3
2.8 101. 4
201.00 1.93 111.0
221. 21 2. 12111. 1
241.44 2.30 111. 2
261.69 2.48 111. 3
281.96 2.67111. 4
3.0 101.5
3.2 101.6
3.4 101.7
3.6 101.8
3.8 101.9
4.0 102.0
4.2 102.1
4.4 102.2
4.6 102.3
4,8 102.4
302.25 2.85 111. 5
322.56 3.03111. 6
342.89 3. 20111.7
363.24 3.38111. 8
383. 61 3.56 111.9
404.00 3.73112.0
424. 41 3.91112. 1
444. 84 4.08 112. 2
465. 29 4. 25|112.3
485.76 4.42112. 4
444. 003. 75 122.0
466. 413. 93 122. 1
488. 84 4. 11122. 2
511. 29 4. 28|122. 3|
533. 764. 45|122. 4]
1.17 110. 6
1.37 110. 7
1.56110. 8
180.81 1.74 110. 9
22.01 0.20 120. 1
44.04 40 120. 2
66.09.59 120. 3|
88. 16.79 120.4
110. 25.98 120.5
132.36 1. 18120. 6|
154. 49 1.37|120. 7
176. 641. 56 120.8.
198.81 1.75 120.9
221.00 1.94121. 0]
243. 212. 12121. 1
265. 44 2.31 121, 2
287.69 2. 49 121. 3
309.96 2.68 121. 4
332.25 2.86 121. 5
354. 56 3.04|121. 6
376. 893. 22121. 7
399. 243. 40 121.8
421.61 3. 58 121.9
1. 18130. 6
168.49 1.37 130. 7
192.64 1.56 130.8
216.81 1.75|130. 9|
241.00 1.94|131.0
265.21 2.13 131. 1
289.441 2. 32 131. 2
313.69 2.50 131. 3
337.96 2.69 131.4
362.25 2.87 131. 5
386.56 3.05 131. 6
410.89 3.24 131. 7
435. 24 3.42 131.8
459.61 3.60 131.9
484.00 3.77 132. 0
508.41 3.95|132.1|
532.84 4. 13 132.2
557.29 4.30 132. 3
581.76 4.48 132.4||||
550. 413.
•
24.01 0.20 130. 1|
48.04
72.09
96. 16
26.01 0.
40 130. 2
.59 130.3
.79 130.4
52.04
78.09
104. 16
•
•
•
120.25
144. 36
99 130.5
130.25.
156. 36 1.
182.49 1.
208.64 1.
234.81 1.
261.00 1.
287.21 2.
313. 44/2.
339.69 2.
365.96 2.
392.25 2.
418. 563.
444. 89/3.
471. 243.
497. 61|3.
524.00 3.
576. 84 4.
603. 29 4.
629. 764.
5.0 102.5 506. 25
5.2 102.6 526. 76
5.4 102.7
5.6 102.8
5.8 102.9
606. 25 4. 65 132. 5
4.65
630.76| 4.83132.6
655.29 5.00|132.7|
679.84 5. 17|132,8
704.41 5.34 132.9
656. 25 4.
682. 76 4.
709. 29 5.
735. 84 5.
6.0 103. 0
6.2 103. 1
6.4 103.2
6.6103.3
6.8 103.4
7.0 103.5
7.5 103.7
8.0 104.0
8.5 104.2
9.0 104. 5
4.59 112.5
4.76112. 6
547.29 4.92 112.7
567.84 5.09112.8
588. 41 5.26 112.9
609.00 5.42113.0
629.61 5.58|113. 1
650.24 5.74113. 2
670.89 5.91|113. 3'
691. 56 6.07 113.4
712.25 6.22113.5
764.06 6.62 113.7
816.00 7.00 114.0
868.06 7.39 114. 2
920. 25 7.76 114. 51,
9.5 104.7 972. 56
10.0 105. 01, 025. 00
556. 25 4. 62 122.5
578. 764. 79|122. 6
601. 294. 96122.7
623.84 5. 13122.8
646. 41 5.30 122.9
669. 005. 47|123.0
691. 61 5. 63 123. 1
714. 24 5. 80 123. 2
736.89 5.96 123.3
759. 56 6. 12123. 4
729.00 5.51|133. 0
753.61 5.68 133. 1
778.24 5.84133. 2
802.89 6.01 133. 3
827.56 6.17 133.4
782. 256. 29123. 5
782. 256. 29 123. 5 852. 25
839. 06|6. 69|123. 7 914. 06
896.007.08124.0|||| 976.00
953. 06 7. 47 124. 21, 038. 06
010. 25 7. 86 124. 51, 100. 25
8. 13 114. 71, 067. 56 8. 24 124. 71, 162. 56
8. 50 115. 01, 125. 00 8. 61 125. 01, 225. 00
762. 41 5.
789.00 5.
815.61 5.
842. 245.
868.896.
895. 56|6.
922. 25|6.
6. 34 133. 5
6.34
6.75 133. 7 989.06 6.
7.15134. 01, 056. 007.
7. 55 134. 21, 123. 067.
7.94 134. 51, 190. 258.
8. 33 134. 71, 257. 56 8.
8.71 135. 01, 325. 008.
10.5 105. 21, 077. 56
9. 09 135. 21, 392.569.
569.
8. 86115. 21, 182. 56 8. 98 125. 21, 287. 56
HYDRAULIC TABLES
69
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¼ to
to 1-Continued

Depth
0.2 140. 1
0.4 140. 2
0.6 140. 3
0.8 140.4
Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
T
A
T T
A
T
A
T
T
A
↑
•
28.01 0.20|150. 1
56.04 40 150. 2
84.09 .60|150. 3|
112.16.79 150. 4|
30.01 0.20 160. 1
32.01
0.20 170. 1
34.01 0.20
60.04.40 160. 2
64.04
.40 170. 2
90.09 .60 160.3
120. 16.79 160.4
96.09
.60 170.3
68.04 .40
102.09 .60
128. 16
79 170.4
136. 16.79
1.0 140.5
1,2 140. 6
1.4 140.7
1.6 140.8
1,8 140.9
160.25
.99 170.5
170.25.99
192.36
1. 18170.6
204.36 1. 18
224.49 1.38 170. 7
238.49 1.38
256.64 1.57 170.8
288.81 1.76 170.9
272.64 1.57
306.81 1.77
341.00 1.96
2.0 141.0
2.2 141. 1
2.4 141.2
2.6141.3
140.25 99 150. 5
168. 36 1. 18 150. 6
196.49 1.38 150. 7
224.64 1.57 150.8
252.81 1.76 150.9
281.00 1.95 151.0
309. 21 2. 14 151. 1
337.44 2.33 151. 2
365.69 2.52 151. 3
393.96 2.70 151. 4
564.00 3.80152.0
592.41 3.99 152. 1
620.84 4. 16|152.2
649.29 4.34 152.3
677.76 4.52 152. 4
2.8 141. 4
3.0 141.5
3.2 141.6
3.4 141.7
3.6 141.8
3.8 141.9
4.0 142.0
4.2 142. 1
4.4 142. 2
4.6 142.3
4.8 142. 4
422.25 2.89 151. 5
450.56 3.07 151. 6
478.89 3.26 151. 7
507.24 3.44151. 8
535. 61 3.62 151. 9
5.0 142.5
5,2 142.6
5.4 142.7
5.6 142.8
5.8 142.9 820.41 5.40 152.9
6.0 143.0
6.2 143. 1
6.4 143.2
6.6143.3
6.8 143. 4
706.25 4.70 152.5
734.76 4.88|152.6
763.29 5.05 152. 7
791.84 5. 23 152. 8
849.00 5.57 153.0
150. 25.99 160. 5
180. 36 1.18 160. 6
210.49 1.38 160.7
240. 64 1. 57 160.8
270.81 1. 76 160.9
301.00 1.95 161.0)
331. 212. 14 161. 1
361. 44|2. 33|161. 2|
391.69 2.52 161.3
421.96 2. 71 161. 4
452.25 2.90 161. 5
482. 56 3.08 161. 6
512.89 3.27 161. 7
543. 243. 45 161.8
573. 61 3. 63| 161.9
604. 00|3. 82|162. 0
634. 414.00 162.1
664. 844. 18162. 2
664.84 4. 18162.2
695. 29 4. 36 162.3
725. 764. 54 162.4
756. 25 4. 72 162. 5
756. 254.72 162.5
786. 76|4. 90 162. 6
817.29 5.07 162.7
847.84 5. 25 162.8
878.41 5. 42 162. 9|
321.00) 1.96171.0
353.21 2. 15171. 1
385.44 2.34 171. 2
417.69 2.53171. 3|
449.96 2.71171. 4
482.25 2.90 171.5
514.56 3.09171.6
546.89 3.27171.7
579.24 3.46 171.8
611.61 3.64 171. 9|
644.00 3.83 172.0
676.41 4. 01172. 1
708. 84 4. 19 172.2
741.29 4.37 172.3
773.76 4. 55 172. 4
806. 25 4. 73 172. 5
806.25 4.73 172.5
838.76 4.91 172.6
871.29 5.09 172.7
903.84 5.27 172.8
936.41 5.45 172.9
969.00
877.61
877.61 5.74 153. 1
906. 24 5.92 153.2
934.89
934.89 6.09 153. 31,
963. 56
909. 00 5. 60|163. 0
939. 61 5. 77 163. 11, 001. 61
970. 24 5. 95 163. 21, 034. 24
5.95
000. 896. 12 163. 31, 066. 89
6. 26 153. 41, 031. 56 6. 29 163. 41, 099. 56
7.0 143.5 992. 25
7.5 143. 71, 064. 06
8.0 144. 01, 136. 00
8.5 144. 21, 208. 06
9.0 144. 51, 280.25
9.5 144. 71, 352. 56
10.0 145. 01, 425. 00
6. 43 153. 5 1, 062. 256. 46 163. 5 1, 132, 25|
6.84 153. 71, 139. 066. 88 163. 71, 214. 06
7. 26 154. 01, 216. 007. 30 164. 01, 296. 00
7.67 154. 21, 293. 06 7. 72 164. 21, 378. 06
8.07 154. 51, 370. 258. 13 164. 51, 460. 25
8.48 154. 71, 447. 56 8. 54 164. 71, 542. 56
8. 87 155. 01, 525. 008. 94|165. 01, 625. 00
375. 212. 15
409.44 2.34
443. 69 2. 53
477.96 2.72
512.25 2.91
546. 56 3.09
580.89 3.28
615. 243. 47
649. 61 3. 65
684.00 3.84
718.414.02
752.84 4. 20
787.29 4.39
821. 76 4. 57
856. 254. 75
890. 764. 93
925. 29 5. 11
959. 84 5. 29
994. 41 5. 47
5.62 173. 01, 029.00 5.64
5.80 173. 11, 063. 61 5. 82
5.97 173. 21, 098. 245.99
6. 15 173. 31, 132. 89 6. 17
6. 32 173. 41, 167. 56 6. 34
6. 49 173. 51, 202. 25|6. 52
6.92 173. 71, 289. 06 6.95
7.34 174. 01, 376. 00 7.38
7. 76 174. 21, 463.06 7.80
8. 18174. 51, 550. 258. 22
8. 59 174. 71, 637. 568. 64
9.00 175. 01, 725. 009. 05
10.5 145. 21, 497. 56
9. 40 175. 21, 812. 56 9. 46
9.26 155. 21, 602. 569. 34 165. 21, 707. 56
70
HYDRAULIC TABLES
Table 5.-Area in square feet, A,
A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
Τ
A
0.2
180.1
36.01
0.20
190. 1
38.01
0.20
200. 1
40.01
0.20
0.4
180.2
72.04
.40
190. 2
76.04
.40
200. 2
80.04
.40
0.6
180.3
108.09
60
190.3
114.09
.60
200.3
120.09
.60
0.8
180. 4
144. 16
.79
190.4
152. 16
.79
200.4
160. 16
.79
1.0
180.5
180.25
.99
190.5
190. 25
.99
200.5
200. 25
.99
1.2
180. 6
216. 36
1. 19
190.6
228.36
1. 19
200, 6
240.36
1. 19
1.4
180. 7
252.49
1.38
190.7
266.49
1.38
200.7
280.49
1.38
1.6
180.8
288.64 1.57 190.8
304.64
1.58 200.8
320.64
1.58
1.8
180.9
324.81
1.77
190.9
342.81
1.77 200.9
360.81
1.77
2.0
181.0
361.00
1.96
191.0
381.00
1.96
201.0
401.00
1.96
2.2
181. 1
397.21
2. 15
191. 1
419. 21
2.15
201. 1
441. 21
2.16
2.4
181. 2
433.44
2.34
191.2
457.44
2.35
201.2
481. 44
2.35
2.6
181. 3
469.69
2.53
191.3
495.69
2. 54
201.3
521.69
2. 54
2.8
181.4
505.96
2. 72
191. 4
533.96
2.73
201.4
561.96
2.73
3.0
181.5
542. 25
2.91
191.5
572.25
2.92
201.5
602. 25
2.92
3.2 181.6
578.56
3. 10
191.6
610. 56
3. 11
201.6
642. 56
3. 11
3.4 181.7
614.89
3. 29
191.7
648.89
3.29
201.7
682.89
3.30
3.6
181.8
651. 24
3.47
191.8]
687.24
3.48
201.8
723. 24
3.49
3.8
181.9
687.61
3.66
191. 9
725. 61
3.67
201.9
763.61
3.67
4.0
182.0
724.00
3.85 192.0
764.00
3.85
202.0
804.00
3.86
4.2
182.1
760.41
4.03
192.1
802. 41
4.04
202. 1
844.41
4.05
4. 4
182. 2
796.84
4. 21
192.2
840.84
4. 22
202. 2
884.84
4. 23
4.6
182.3
833. 29
4.40
192. 3
879.29
4. 41
202.3
925. 29
4. 42
4.8
182.4
869.76
4.58
192.4
917.76
4. 59
202.4
965. 76
4.60
5.0
182.5
906.25
4.76
192, 5
956. 25
4.77
202. 5
1, 006. 25
4.78
5.2
182.6 942.76
4.94
192.6
994.76
4.96
202. 6
1,046. 76
4.97
5.4 182.7 979.29
5. 12
192.7 1, 033. 29
5. 14
202.7 1,087. 29
5. 15
5.6
182.8 1,015. 84
5.30
192.8 1,071. 84
5.32
202.8 1, 127.84]
5. 33
5.8
182.9 1,052. 41
5.48
192.9 1, 110. 41
5.50
202.9 1, 168. 41
5.51
6.0
6.2
6.4
6. 6
6.8
1246 AÐ
183.0 1,089.00
5.66
193. 0 1, 149.00
5.68
203. 01, 209.00
5.69
183. 1 1, 125. 61
5.84
193. 1 1, 187.61
5.86
203. 1 1, 249. 61
5.87
183. 2 1, 162. 24
6.02
193. 2 1, 226. 24
6.03
203. 2 1, 290. 24
6.05
183. 3 1, 198. 89
183. 4 1, 235, 56|
6. 19
193. 31, 264. 89|
6. 21
203.3 1,330.89
6. 23
6.37
193. 4 1, 303. 56
6. 39
203. 41, 371. 56
6.41
7.0
7.5
8.0
8.5
9.0
LOLO O
183.5 1, 272. 25
183. 7 1, 364. 06)
184. 0 1, 456. 00
184. 2 1,548. 06
6. 54
193.5 1,342. 25
6. 57
203.5 1,412. 25
6.59
6.98
193.7 1, 439, 06
7.00
203.7 1, 514. 06
7.03
7.41
194. 0 1, 536. 00
7.44
204. 0 1,616. 00
7.46
7.84
194.2 1, 633. 06
7.87
204. 2 1, 718. 06
7.90
184.5 1,640. 25
8.26
194. 5 1, 730. 25
8.30
204. 5 1, 820. 25
8.33
9.5
184. 71, 732. 56
8.68
10.0
185.0 1,825.00)
9. 10
194.7 1,827. 56
195.01, 925. 00
8.72
9. 14
204.7 1, 922. 56
8.76
205. 0 2,025. 00
9. 18
10.5
9.60
185. 2 1, 917. 56
205.2 2,127. 56
9.51
9.56
195. 22, 022. 56
HYDRAULIC TABLES
71
Table 5.-
5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
A,
side slopes 14 to 1-Continued
T, and

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
Τ
A
ร
T
་
A
१
T
A
r
T
A
T
11
7.5
12
8.0
13 8.5
14
9.0
52.25 2.12 8.5
60.00 2.24
68.25 2.37 9.5
77.00 2.50 10.0
9.0
63.25 2.46 9.5
72.00 2.60 10.0
81.25 2.73| 10.5
91.00 2.86| 11.0
74.25 2.78 10.5|
84.00 2.92 11.0
94.25 3.06 11.5
105.00 3.20 12.0
85.25 3.08
96.00 3.23
107.25 3.37
119.00 3.51
15
9.51
16
10.0
17 10.5
18 11.0
19
11.5
86.25 2.62] 10.5
96.00 2.74 11.0
106.25 2.87 11.5
117.00 2.99| 12.0
128.25 3. 12 12.5
101.25 2.98| 11.5
112.00 3. 11| 12.0|
123.25 3.24 12.5
135.00 3.37| 13.0
147.25 3.49] 13.5
116.25 3.33 12.5
128.00 3.46 13.0
140.25 3.59 13.5
153.00 3.72 14.0
166.25 3.85 14. 5
131.25 3.65
144.00 3.79
157.25 3.93
171.00 4.06
185.25 4. 19
20
12.0
140.00 3.24 13.0
21 12.5
22 13.0
152.25 3.36 13.5
165.00 3.48] 14.0
23
13.5
178.25 3.61 14.5
24
14.0
192.00 3.73 15.0
160.00 3.62 14.0
173.25 3.74 14.5
187.00 3.87 15.0
201.25 3.99 15.5
216.00 4.12 16.0
180.00 3.98 15.0
194.25 4.11 15. 5
200.00 4.33
215.25 4. 46
209.00 4.23 16.0
224.25 4.36 16. 5
240.00 4.49 17.0
231.00 4.59
247.25 4.72
264.00 4.85
25
14. 5
26
15.0
206.25 3.85| 15.5
221.00 3.97 16.0
27 15.5 236.25 4.10 16.5
252.00 4.22 17.0
268. 25 4.34 17.5
231.25 4.24 16.5
247.00 4.36) 17.0
263.25 4.49 17.5
280.00 4.61 18.0
297.25 4.73| 18.5|
315.00 4.86 19.0
333.25 4.98 19.5
352.00 5. 10| 20.0
371.25 5.23 20.5
391.00 5.35 21.0
28 16.0
29 16.5
30 17.0
31 17.5
32 18.0
33
18. 5
34 19.0
285.00 4.46 18.0
302.25 4.59 18. 5
320.00 4.71 19.0
338.25 4.83 19.5
357.00 4.95 20.0
35
19.5
376.25 5.07 20.5
36
20.0
396.00 5.20 21.0
37
20.5
416.25 5.32 21.5
38
21.0
437.00 5.44 22.0
39
21.5
458.25 5.56 22.5
411.25 5.47 21.5
432.00 5.59 22.0
453.25 5.72 22.5
475.00 5.84 23.0
497.25 5.96 23.5
40
22.0
41 22.5
42 23.0
43 23.5
44 24.0
480.00 5.68 23.0
502.25 5.80 23.5
525.00 5.931 24.0
548.25 6.05 24.5
572.00 6.17 25.0
45 24.5
46 25.0
47 25.5
48 26.0
49 26.5
596.25 6.29 25.5
621.00 6.41 26.0
646.25 6.53 26.5
672.00 6.66 27.0
698.25 6.78 27.5
520.00 6.08 24.0
543. 25 6. 21| 24, 5
567.00 6.33 25,0
591.25 6.45 25.5
616.00 6.57 26.0
641.25 6.70 26.5
667.00 6.82 27.0
693.25 6.94 27.5
720.00 7.06) 28.0
747.25 7.18 28.5
345.00 5.24 20. 0
364.25 5.36 20.5
384.00 5.49 21.0
404.25 5.61 21.5
425.00 5.74 22.0
446.25 5.86 22. 5
468.00 5.98 23.0
490. 25 6.11| 23.5
513.00 6. 23 24.0
536.25 6.35 24.5
416.00 5.86
437.25 5.99
459.00 6.11
481.25 6.24
504.00 6.36
527.25 6.49
551.00 6.61
575. 25 6.74
600.00 6.86
625.25 6.98
651.00 7.11
677.25 7.23
560.00 6.48 25.0
584.25 6.60 25.5
609.00 6.72 26.0
634. 25 6.85 26.5
660.00 6.97 27.0|||| 704.00| 7.36
686.25 7.09 27.5
713.00 7.21 28.0
740. 25 7.34 28.5
768.00 7.46 29.0
796.25 7.58 29.5
731.25 7.48
759.00 7.60
787.25 7.73
816.00 7.85
845. 25 7.97
256. 25 4.61 17. 5
273.00 4.74] 18.0
290. 25| 4.86| 18. 5
308.00 4.99| 19.0
326. 25 5. 11| 19.5
281.25 4.97
299.00 5.10
317.25 5.23
336.00 5.36
355.25 5.48
375.00 5.61
395.25 5.74
50 27.0
875.00 8.10
725.00 6.90 28.0.
775.00 7.31| 29.0 825.00 7.70 30.0
72
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
до
Τ
A
р
ཝཱ
T
A
T
T
A
11
11.5
12 12.0
13
12.5
14 13.0
96.25 3.36 12.5
108.00 3.51 13.0
120.25 3.67 13.5
133.00 3.82 14.0
107.25 3.61 13. 5
120.00 3.78 14.0
133.25 3.94 14. 5
147.00 4.10 15.0
15
13. 5
16
14.0
17
14. 5
18
15.0
19
15.5
146.25 3.96] 14.5|
160.00 4.10] 15.0
174.25 4.25 15.5
189.00 4.38 16.0
204.25 4.52 16.5
161.25 4.25 15.5
176.00 4.40 16.0
191.25 4.55 16.5
207.00 4.69 17.0
223.25 4.84| 17.5]
118.25 3.85) 14. 5|
132.00 4.03 15.0
146.25 4.20 15.5
161.00 4.37| 16.0|
176.25 4.53 16. 5
192.00 4.68 17.0
208. 25 4.84 17.5
225.00 4.99 18.0
242.25 5.14 18.5
129.25 4.0
144.00 4.2
159.25 4.4
175.00 4.6
191.25 4.7
208.00 4.9
225.25 5.1
243.00 5.2
261.25 5.4
20
16.0
21 16.5
220.00 4.66 17.0
236.25 4.79 17.5
22
17.0
253.00 4.93| 18.0
23
17.5
270.25 5.06 18.5
24
18.0
288.00 5.19 19.0
25
26
27
29
30
32
33
34
37
RRRRR A*** **** **** **59 8
18.5
306.25 5.32 19.5
19.0
325.00 5.45 20.0
331.25 5.66 20.5
351.00 5.79 21.0
19.5 344.25 5.58 20.5
371.25 5.92 21.5
28 20.0 364.00 5.71 21.0
20.5 384.25 5.84 21.5
392.00 6.06 22.0
413.25 6.19] 22.5
21.0
22.0
405.00 5.97 22.0
31 21.5 426. 25 6. 10 22. 5
448.00 6. 22 23.01
22.5 470.25 6.35 23.5
23.0 493.00] 6.48 24. 0
435.00 6.32| 23.0
457.25 6.45 23.5
480.00 6.58 24.0
503. 25 6.71 24. 5
527.00 6.84 25.0
240.00 4.98] 18.0
257.25 5.12 18.5
275.00 5.25 19.0
293. 25 5.39 19.5
312.00 5.52| 20.0
260.00 5.28 19.0
278. 25 5.42 19.5
297.00 5.57 20.0
316.25 5.71 20.5
336.00 5.85 21.0
356.25 5.98 21.5
377.00 6.12 22.0
398.25 6.26 22,5
420.00 6.39 23.0
442. 25 6.52 23.5
465.00 6.66 24.0
488.25 6.79 24.5
280.00 5.
299.25 5.
319.00 5.8
339.25 6.0
360.00 6.
381.25 6.
403.00 6.
425.25 6.
448.00 6.
471.25 6.
495.00 6.
519.25 7.
512.00 6.92 25.0
536.25 7.05 25.5
561.00 7.18 26.0
544.00 7.
569.25 7.
595.00 7.
35
23.5 516.25 6.61 24. 5
36 24.0 540.00 6.73 25.0
24.5
564.25 6.86 25.5
38 25.0
589.00 6.98 26.0
39 25.5
614. 25 7. 11
26.5
551.25 6.96 25.5
576.00 7.09| 26.0
601.25 7.22 26. 5
627.00] 7.35 27.0
653.25 7.47 27.5
586.25 7.31 26. 5
612.00] 7.44] 27.0
638.25 7.57 27.5
665.00 7.70 28.0
692.25 7.83 28.5
621.25 7.
648.00 7.
675.25 7.
703.00 8.
731.25 8.
40
26.0
640.00 7.23 27.0
680.00 7.60 28.0
720.00 7.96] 29.0
760.00 8.
41
26.5 666.25 7.36| 27. 5
707.25 7.73 28.5
748.25 8.09 29.5
789.25 8.
42
27.0 693.00 7.49 28.0
735.00| 7.85】 29.0
777.00 8.21 30.0
819.00 8.
43 27.5 720.25 7.61| 28.5]
28.0 748.00] 7.73 29.0
44
792.00
763.25 7.98 29.5
792.00 8.11 30.0
806.25 8.341 30. 5
849.25 8.
836.00 8.47 31.0
880.00 8.
45
28.5
46 29.0
47 29.5
49
48 30.0
30.5
776.25 7.86 29.5
805.00 7.98 30.0
834. 25] 8.11] 30.5
864.00 8.23 31.0
894.25 8.36 31.51
50
31.0
821,25 8.23] 30.5|
851.00 8.36 31.0
881.25 8.48 31.5
912.00 8.61 32.0
943.25 8.73 32.5
911.25 8.
943.00 9.
866.25 8.60| 31.5]
897.00 8.72 32.0
928.25 8.85 32.5 975.25 9.
960.00 8.98 33. 01, 008.00 9.
992.25 9.10 33. 51,041.25 9.
925.00 8.48 32.0 975.00 8.86 33. 01, 025. 00 9.23 34.01, 075. 00 9.
HYDRAULIC TABLES
73
Table 5.-Area in square
square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¼ to 1—Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
A
T
T
A
T
T
A
26
29
32
35
1231 49702 22222 2222 CH28* 49588 97***
16.5
14
17.0
15.5 140.25 4.29 17.5
16.0 156.00 4.49 18.0
172.25 4.68 18.5
189.00 4.86] 19.0
162.25 4.68 19.5]
180.00 4.90 20.0
198.25 5. 11 20.5
217.00 5.31 21.0
184.25 5.02 21.5
204.00 5.27 22.0
224.25 5.50 22.5
245.00 5.72 23.0
206.25 5.33
228.00 5.60
250.25 5.85
273.00 6.09
15
17.5
206.25 5.04 19.5
16 18.0
224.00 5.21 20.0
236.25 5.50 21.5
256.00 5.69 22.0
19
18 19.0
19.5
17 18.5 242.25 5.38 20.5
261.00 5.54 21.0
280.25 5.70 21.5
276.25 5.87 22.5
297.00 6.05 23.0
318.25 6.22 23.5
266.25 5.93 23.5
288.00 6.13 24.0
310.25 6.33 24.5
333.00 6.52 25.0
356.25 6.70| 25.5
296.25 6.31
320.00 6.53
344.25 6.74
369.00 6.95
394.25 7.15
20
20.0
21
20.5
300.00 5.86 22.0
320. 25 6.01 22.5
21.0
23
21.5
24
22.0
341.00 6.16 23.0
362. 25 6.31| 23.5
384.00 6.46 24.0
340.00 6.39 24.0
362.25 6.55 24.5
385.00 6.71 25.0
408.25 6.87 25.5
432.00 7.03 26.0
380.00 6.88 26.0
404.25 7.06] 26.5|
429.00 7.23 27.0
454. 25 7.40 27.5
480.00 7.56 28.0
420.00 7.34
446.25 7.53
473.00| 7.71
500.25 7.89
528.00 8.06
25
23.0
27 23.5
28 24.0
24. 5
22.5 406.25 6.60 24.5
429.00 6.75] 25.0
452.25 6.89 25.5
476.00 7.03] 26.0
500.25 7.17 26.5
456.25 7.18 26.5
481.00 7.33 27.0
506. 25 7.48 27.5
506.25 7.72 28.5
533.00 7.88 29.0
560.25 8.04 29.5
556.25 8.24
585.00 8.41
614.25 8.57
532.00 7.63 28.0
558.25 7.78 28.5
588.00 8.20 30.0
616.25 8.35 30.5
644.00 8.74
674.25 8.90
30
25.0
31 25.5
525.00 7.31 27.0
550.25 7.45 27.5
26.0 576.00 7.58] 28.0
585.00 7.92 29.0
612.25 8.07 29.5
640.00 8.21| 30.0
33
26.5
602.25 7.72 28.5
668.25 8.35 30.5
645.00 8.50 31.0
674.25 8.65 31.5
704.00 8.80 32.0
734.25 8.95 32.5
34 27.0
629.00 7.85 29.0
697.00 8.49 31.0
765.00 9.10 33.0
27.5
656.25 7.99 29.5
726.25 8.63 31.5
39
36 28.0 684.00 8.12 30.0
37 28.5 712.25 8.26 30.5
38 29.0 741.00 8.39 31.0
29.5 770.25 8.52 31.5
756.00 8.77 32.0
786.25 8.91 32.5
817.00 9.04 33.0
848.25 9.18 33.5
40
41
30.0
800.00 8.65 32.0
30.5 830.25 8.78 32.5
43
31.5
44 | 32.0
880.00 9.32 34. 0
912.25 9.45 34.5
42 31.0 861.00 8.91| 33.0 945.00 9.59
892.25 9.04| 33.5 978.25 9.72
924.00 9.18 34. 01, 012. 00 9.85
45
48
49
32. 5 956.25
46 33.0 989.00
47 33. 51, 022. 25 9.56
34. 01, 056. 00 9.69|
34. 51,090. 25 9.82
50 35. 01, 125.00
9.43
9.30] 34. 51, 046. 25
35. 01, 081. 00 10. 12
35. 51, 116. 25 10. 25
36.01, 152. 00|10. 38
36. 51, 188. 25 10. 51
9.95 37.01, 225.00 10. 64
9.99
39. 01, 325.00 11. 32
705.00 9.06
736. 25 9.21
768.00 9.37
800.25 9.52
833.00 9.68
796.25 9.24 33.5 866.25 9.83
828.00 9.39 34.0 900.00 9.98
860.25 9.53 34.5 934. 25 10. 12
893.00 9.67 35.0 969.00 10. 27
926.25 9.81 35. 51, 004. 25 10.42
960.00 9.95|
994. 25 10. 09
35. 01, 029.00 10. 23
35. 51, 064. 25 10.37
36.01, 100. 00 10. 51
36.5 1, 136. 25 10. 64
37. 01, 173. 00 10. 78
37. 51, 210. 25 10. 91
38.01, 248.00 11.05
38. 51, 286. 25 11. 18
36. 01, 040.00 10. 56
36. 51, 076. 25 10. 71
37.01, 113.00 10.85
37.51, 150. 25 10.99
38. 01, 188.00 11. 13
38. 51, 226. 25 11. 27
39. 01, 265.00 11. 41
39. 51, 304. 25 11. 55
40.01, 344.00 11. 69
40. 51, 384. 25 11. 83
41. 01, 425.00 11. 97
563189°14-
-6
74
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued
T, and

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T T
A
T T
A
T
A
12
14
15
16
21
IRRI HI=-2 222** ****8
11 23.5
24.0
13 24.5
25.0
228.25 5.61 25.5
252.00 5.90 26.0
276. 25 6. 17 26. 5)
301.00 6.42 27.0
25.5
26.0
17
26. 5
18 27.0
27.5
326.25 6.67 27.5
352.00 6.90 28.0
378.25 7.13 28. 51
405.00 7.35 29.0
432.25 7.56| 29.5|
250.25 5.86 27.5
276.00 6. 17 28.0
302. 25 6.461 28.5
329.00 6.73 29.0
356.25 7.00| 29.5
384.00 7.25 30.0
412. 25 7.49 30.5
441.00 7.72 31.0
470.25 7.95 31.5
20 28.0
28.5 488.25 7.97 30.5
29.0 517.00 8.16 31.0
23 29.5 546.25 8.35 31,5
24 30.0 576.00 8.54 32.0
460.00 7.77 30.0
500.00 8.17 32.0
530.25 8.38 32.5
561.00 8.58 33.0
592.25 8.79 33.5
624.00 8.98| 34.0|
540.00 8.54 34.0
572.25 8.76 34.5
605.00 8.98 35.0
638.25 9.19 35.5
672.00 9.40 36.0
272.25 6.09 29.5
300.00 6.42 30.0
328.25 6.73 30.5
357.00 7.02 31.0
386 25 7.30 31.5
416.00 7.57 32.0
446.25 7.82| 32.5|
477.00 8.07 33.0
508.25 8.31 33. 5
294. 25 6.30
324.00) 6.65
354.25 6.97
385.00 7.28
580.00 8.89
614.25 9. 13
649.00 9.36
684.25 9.58
720.00 9.80
416.25 7.58
448.00 7.86
480.25 8.13
513.00 8.39
546.25 8.65
25 30.5
26 31.0
27
28
29
606. 25 8.72 32.5
637.00 8.90 33.0
31.5 668.25 9.07 33.5
32.0 700.00 9.24 34.0
32.5 732.25 9.41 34.5
656.25 9.17 34.5
689.00 9.36 35.0
722.25 9.55 35.5
756.00 9.73] 36.0
790.25 9.90 36.5
30 33.0
31 33.5
32 34.0
33 34.5
34 35.0
35 35.5
36
37
38
39
40
41
42
43
44
45
46
47
48
49
765.00 9.58 35.0
798.25 9.75 35.5
832.00 9.91| 36.0
866. 25 10.07 36.5|
901.00 10. 23 37.0|
936. 25 10.38
36.0 972.00|10. 54|
36. 51,008. 25 10. 69
37. 01, 045.00 10.85
37.5 1, 082. 25 11.00
38.01, 120. 00|11. 15
38. 51, 158. 25 11.30
39. 01, 197.00 11.45
39. 51, 236. 25 11. 59
40.01, 276.00 11.74
40. 51, 316.25 11.88
41. 01, 357.00 12.03
41. 51, 398. 2512. 17
42. 01, 440.00 12. 31
42. 51, 482. 25′12. 45
825.00 10.08 37.0]
860. 25(10.25] 37.5
896. 00[10. 42|
932. 25 10. 59
969.00 10. 76
37. 51, 006. 25 10.92
38. 0|1, 044.00 11.08
38. 51, 082. 25 11. 24
39. 01, 121.00 11. 40
39. 51, 160. 25|11. 56||
40.01, 200.00 11. 71
40. 51, 240. 25|11.87|
41.01, 281.00|12.02|
41. 51, 322. 25 12. 17
42.01, 364.00 12. 32
42. 51, 406. 25 12. 47
43. 01, 449.00 12. 62
43. 51, 492. 25 12. 77
44.01, 536.00|12.91]
44. 51, 580. 25|13.06
706. 25 9.60 36.5
741.00 9.80 37.0
776.25 10.00 37.5
812.00|10.19 38.0
848.25|10.37|| 38.5
885.00 10. 55
922. 25 10.74
960.00 10.91 40.01, 024.00 11.38
40. 51, 064. 25 11, 56
41.01, 105. 0011. 74
38.0
38.5 998. 2511.09|
39. 01, 037.00|11. 26|
39. 51, 076. 25 11. 43
40.01, 116.00 11.60
40. 51, 156. 2511. 77
41.01, 197.00 11. 93
41. 51, 238. 25 12. 09
42. 01, 280.00 12. 25
42. 51, 322. 25|12. 41
43.0|1, 365. 00|12. 57
43. 51, 408. 25 12. 73
44. 01, 452.00 12.88
44. 51, 496. 25 13.04
45. 01, 541.00 13. 19
45. 51, 586. 25 13. 34
46. 01, 632.00 13. 49
46. 51, 678. 25 13. 64
41. 51, 146. 25 11.92
42. 01, 188.00 12. 10
42. 51, 230. 25 12. 27
43. 01, 273. 00 12. 44
43. 51, 316. 25 12. 61
44. 01, 360. 00|12. 77
44. 51, 404. 25|12. 94
45.0|1, 449. 00₤13. 10
45. 51, 494. 25 13. 26
46. 01, 540.00 13. 43
46. 51, 586. 25 13. 58
47.01, 633.00 13. 74
47. 51, 680. 25 13. 90
48.0|1, 728. 00 14. 05
48. 51, 776. 25|14. 21
756.25 10.01
793.00 10.22
830.25 10. 42
868.00 10. 62
906. 25 10.82
39.0
39.5
945.00 11.01
984.25 11. 20
50
49.01, 825.00|14. 36
43. 01, 525.00 12. 60
47.01, 725.00 13.79
45.01, 625.00 13.20
HYDRAULIC TABLES
75
Table 5.—Area in
in
square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued
T, and

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth

T
A
T T
A
T
A
↑
T
Α
476.25 8.08 37.5
512.00 8.40| 38.0|
548.25 8.70 38. 5
585.00 8.99 39.0
622. 25 9.26 39.5
660.00 9.53 40.0
698.25 9.79 40.5
737.00 10.05 41.0
776.25 10. 29 41.5
816.00 10.53 42.0
11
31.5
316. 25 6.50 33.5
13
22.
12
32.0
348.00 6.86 34.0
32.5
380.25 7.20 34. 5
14 33.0
413.00 7.53] 35.0
338.25 6.67 35.5
372.00] 7.05 36.0
406. 25 7.41] 36. 5
441.00 7.76 37.0
15
33.5
16
34.0
17 34.5
18 35.0
19
35.5
446. 25 7.84| 35. 5
480.00 8.14 36.0
514.25 8.42 36. 5
549.00 8.70 37.0
584.25 8.97 37.5
20
36.0
21
36. 5
22
37.0
23
37.5
37.5
620.00] 9. 22】 38. 0
656.25 9.47 38.5
693.00 9.71| 39.0
730.25 9.95| 39. 5
24
38.0
768.00[10. 18| 40.0
22222 A-883 88538
25
38.5
806. 25 10.40] 40.5
856. 25|10. 77
42.5
26
39.0
845.00 10.62 41.0
27
39.5
28
29
30
31
32
33
34
36
37
897.00 10.99|
884. 25 10.83 41. 5 938. 25 11. 21
40.0 924.00 11.04 42.0 980, 00 11. 43
40.5 964. 25 11. 24| 42. 51, 022. 25|11. 64|
41. 01, 005. 0011. 44
41. 51, 046. 25 11. 64
42. 01, 088.00 11. 83
42. 51, 130. 25 12. 02
43. 01, 173.00 12. 21
43. 51, 216. 25|12. 39|
44. 01, 260. 00 12. 57
44. 51, 304. 25 12. 75
45. 01, 349.00 12. 93
45. 51, 394. 25 13. 10
43. 01, 065. 00 11. 85
43. 51, 108. 25 12. 06
44. 01, 152. 00|12. 26|
44. 51, 196. 25 12. 46
45. 01, 241.00 12.65
45. 5|1, 286. 25 12. 84
46. 01, 332. 00|13. 03|
46. 51, 378. 25|13. 22|
47. 01, 425. 00 13. 40
47. 51, 472. 25 13. 58
49. 01, 617. 00 14. 11
49. 5|1, 666. 25|14. 28
50. 01, 716. 00|14. 46
360.25 6.841 37.5
396.00 7.23 38.0
432.25 7.61| 38.5
469.00 7.97 39.0
506. 25 8.31 39.5
544.00 8.64 40.0
582.25 8.95 40.5
621.00 9.25 41.0
660. 25 9.55 41.5
700.00 9.83] 42.0
740. 25 10.10 42.5
781.00 10.36
822. 25 10. 62
864.00 10.87
906.25 11. 11
43.0 949.00 11.35
43. 5 992. 25 11.58
44. 01, 036.00 11.81
44. 51, 080. 25|12. 03|
45. 01, 125.00 12. 25
45. 51, 170. 25 12. 46
46. 01, 216. 0012. 67
46. 51, 262. 25|12. 88
47. 01, 309. 00 13. 08
47. 51, 356. 2513. 28
48.01, 404. 0013. 47
48. 51, 452. 25|13. 66
49. 01, 501. 00 13. 85
49. 51, 550. 25 14. 04
50. 01, 600. 00 14. 23
50. 51, 650. 25 14. 41
51. 01, 701. 0014. 59
51. 51, 752. 2514. 77
52. 01, 804. 00 14.95
39
40
46. 01, 440.00 13. 28
48.01, 520. 00 13. 76
41
42
43
44
46. 51, 486. 25 13. 4548. 51, 568. 25 13. 94
47.01, 533.00 13. 62
47. 51, 580. 25|13. 78|
48.01, 628. 00|13. 95|
45
46
47
48. 51, 676. 25 14. 11
49. 01, 725. 00 14. 28
49. 51, 774. 25 14. 44
50. 51, 766. 2514. 62
51.01, 817. 00 14. 79
51. 51, 868. 25 14. 96
48
49
50. 01, 824. 00|14. 60|| 52. 0|1, 920. 00|15. 12|
50. 51, 874. 2514. 76||| 52. 51, 972. 25|15. 29||
52. 51, 856. 25 15. 12
53. 01, 909. 0015. 29
53. 51, 962. 25 15. 46
54. 02,016. 00|15. 63
54. 52, 070. 25|15. 80|
|15382.25 6.99
420.00 7.40
458.25 7.79
497.00 8.17
536.25 8.52
576.00 8.86
616.25 9.19
657.00) 9.51
698. 25| 9.81
740.00 10. 11
782. 25 10. 39
825.00 10.67
912.00 11. 19
43.0
43.5
868. 25 10.93
44.0
44.5
956. 25 11.45
45. 01, 001. 00/11. 69
45. 51, 046.25 11.94
46. 01, 092. 00 12. 17
46. 51, 138. 25 12. 40
47. 01, 185. 00 12. 63
47. 51, 232. 25 12. 85
48. 01, 280.00 13. 07
48. 51, 328. 25 13. 28
49. 01, 377.00 13. 49
49. 51, 426. 25 13. 69
50. 01, 476. 00 13. 90
50. 51, 526. 25 14. 10
51. 01, 577.00 14. 29
51. 51, 628. 25 14. 49
52. 01, 680.00 14. 68
52. 51, 732. 25 14. 87
53. 01, 785. 00 15. 05
53. 5|1, 838. 25|15. 24
54.01, 892. 00 15. 42
54. 51, 946. 25|15. 60
55. 02, 001. 00 15. 78
55. 52, 056. 25 15. 95
56. 02,112. 00|16. 13
56. 52, 168. 25|16. 30
50
57.0|2, 225. 00|16. 47
51. 01, 925. 00 14. 91 53. 02, 025. 00.
0/15. 45| 55. 0|2, 125. 00|15. 97|
76
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
¼
side slopes 14 to 1-Continued
T, and
T,

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
Α
Τ
A T T
A
T
T
A
11
40.5
12 41.0
415.25 7.20 45.5
456.00 7.63 46.0
13
41.5
497.25 8.05 46, 5
14
42.0
539.00 8.44 47.0
470.25 7.50| 50.5
516.00 7.97 51.0
562.25 8.42 51.5
609.00 8.84 52.0
525.25 7.76 55.5
576.00 8.26 56.0
627.25 8.74 56.5
679.00 9. 19 57.0
580.25 7.98
636.00 8.51
692.25 9.01
749.00 9.50
15
42.5
581.25 8.82 47.5
====
16
43.0
624.00 9.18 48.0
17
43.5 667.25 9.53 48. 5
18
44.0
711.00 9.86| 49.0
19
44. 5
755. 25 10. 18
49.5
656.25 9.25 52.5
704.00 9.65 53.0
752. 25|10. 02 53.5
801.00 10.39 54.0
850. 25 10.74 54.5
731.25 9.63 57.5
784.00 10.05 58.0
837.25 10.46 58. 5
891.00 10.85 59.0
945.25 11. 23| 59. 51,
806. 25 9.96
20
45.0
21
45. 5
22
46.0
23
46. 5
21
47.0
800.00 10.49
845, 25 10.80
891.00 11.09
937.25 11.37
984.00 11.65
50.0
50.5
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
47. 51, 031.25 11.92
48.0 1,079.00 12. 18
48. 51, 127. 25 12. 43
49. 01, 176.00 12. 68
49. 51, 225. 25 12. 93
50.01, 275.00 13. 17
50. 51, 325. 25 13. 40
51.01, 376. 00|13. 63|
51. 51, 427. 25 13. 85
52. 01, 479.00 14. 07
55. 01, 000.00 11.60
55. 5 1, 055. 2511.95
56. 01, 111. 00 12. 30
56. 51, 167. 25 12. 63
57. 01, 224. 00 12.96
900.00 11.08
950.25 11.41
51.01, 001.00 11.73
51. 51, 052. 25 12.04
52.01, 00|12. 57.01,
52. 01, 104. 00 12. 34
52. 51, 156. 25 12. 63|
53.01, 209. 00 12. 92
53. 51, 262. 25 13. 19
54.01, 316. 00 13. 47
54. 51, 370. 25|13. 73||
55. 01, 425. 00 13. 99
55. 51, 480. 25 14. 25
56. 01, 536. 00|14. 49
56. 51, 592. 25 14. 74
57.01, 649. 00 14. 98
57. 51, 281. 25|13. 27|
58. 01, 339. 00 13. 58
58. 51, 397. 25 13.88
59. 01, 456. 0014. 17
59, 51, 515. 2514. 46
60.01, 575.00 14. 74
60. 51, 635. 25 15. 01
61.01, 696. 0015. 28
61. 51, 757. 25 15. 55
62. 01, 819. 00 15.80
62. 51, 881. 25 16. 06
63. 01, 944. 00 16. 31
63. 52, 007. 25 16. 55
64. 02, 071.00 16. 79
64. 52, 135. 25 17.03
57. 51, 706. 25 15. 21
58.01, 764. 00 15. 44
0014. 00₤15. 63.0|1,
58. 51, 822. 25 15. 67
59. 01, 881.00 15.90
59. 51, 940. 25 16. 11
52. 51, 531. 25 14. 29
53.01, 584.00 14. 50
53. 51, 637. 25 14. 71
54. 01, 691.00 14.92
54. 51, 745. 25 15. 12
60.02, 000. 00 16. 33
60. 52, 060. 25 16. 55
61. 02, 121. 00 16. 76
00|15. 61.02, 00|16. 66.0|2,
61. 52, 182. 25 16. 96
62. 0|2, 244. 00|17. 17|
65. 02, 200.00 17. 26
00|16. 65.0|2,
65. 52, 265. 25 17. 49
25|17.
55.0 1,800.00 15. 32
55. 51,855.25 15. 52
56. 01, 911.00 15. 72
43 56. 51, 967.25 15. 91
44 57. 02, 024. 00|16. 10|
45
46
47
66. 02, 331. 00 17.71
66. 52, 397. 25 17.94
67.02, 464.00|18. 16|
67. 52, 531.25 18. 37
67.52, 25|18.
68. 02, 599.00 18. 59
68. 52, 667, 25|18. 80|
69.02, 736. 00 19. 01
69. 52, 805. 25 19. 21
57.52,081.25 16. 29 62. 52, 306. 25 17.37
25|16. 25|17.
58. 02, 139.00 16. 48 63.02, 369.00 17. 57
58. 52, 197. 25|16.66|| 63. 52, 432. 25|17. 77|
48 0016. 0019.
59. 02, 256.00 16. 84 64.02, 496. 00 17.96
59. 52, 315. 25 17.02 64. 52, 560. 25 18. 16
864.00 10.41
922. 25 10.84
981.00 11. 26
040. 25 11. 67
60. 01, 100. 00 12. 06
60. 51, 160. 25|12. 44
61.01, 221.00 12. 80
61. 51, 282. 25 13. 16
62. 01, 344.00 13. 51
00|13.
62. 5|1, 406. 25|13. 85
63. 01, 469. 00 14. 18
63. 51, 532. 25 14. 50
64. 01, 596. 00 14. 82
64. 51, 660. 25₤15. 12
65. 01, 725. 00 15. 42
65. 51, 790. 2515, 72
66.01, 856. 0016. 00
66. 51, 922. 25 16. 29
25|16.
67.01, 989.00 16. 56
67. 52, 056. 25 16. 83
52,056.
68. 02, 124. 0017. 10
68. 52, 192. 25 17. 36
69. 02, 261. 00 17. 62
69. 52, 330. 25 17.87
25|17.36
70. 02, 400. 00 18. 12
70. 52, 470. 25 18. 36
71.02, 541.00 18.60
71. 52, 612. 25 18. 84
72. 02, 684. 0019. 07
72. 52, 756. 25 19. 31
73. 02, 829. 00 19.53
73. 52, 902. 2519. 76
74. 02, 976. 00 19.98
74. 53, 050. 25 20. 20
49
50
75. 03, 125.00 20. 41
60.0 2,375.00 17. 201
70. 02, 875.00 19. 42
20|| 65. 02, 625.00 18. 35
HYDRAULIC TABLES
77
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued
T, and

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
*
Τ
T
A
T
-
T
A
T
Τ
A
T
11
65. 5
12
66.0
13
66. 5
14 67.0
17
690.25 8.35 75.5 800.25 8.63 85. 5
756.00 8.92 76.0 876.00 9.25
822. 25 9.47 76.5 952. 25 9.84
952. 25 9.84
889.00 10.00 77. 01, 029. 00|10. 41
15 67.5
67.5 956. 25 10. 52
16 68. 01, 024. 0011. 01
68. 51, 092. 25 11. 49
69. 01, 161. 00|11. 96|
69. 51, 230. 25 12. 41
18
19
----- 22232 22EER
20 70. 01, 300.00 12. 84
21 70. 51, 370. 25 13. 27
71. 01, 441. 00 13. 68
71. 51, 512. 25 14. 08
24 72. 01, 584. 00 14. 47
25
26
27
28
29
30
31
32
33
34
37
72. 51, 656. 25 14. 85
73. 01, 729. 00 15. 22
73. 51, 802. 25 15. 58
74. 01, 876.00 15. 94
74. 51, 950. 25 16.28
75.0 2,025.00 16. 62
75. 52, 100. 25 16. 95
76. 02, 176.00 17. 27
76. 52, 252. 25 17.59
77. 02, 329. 00 17.90
35 77. 52, 406. 25 18. 21
36 78. 02, 484. 0018. 51
78. 52, 562. 2518. 80
79. 02, 641.00 19. 09
79. 52, 720. 25 19. 37
38
39
40
41
42
43
44
45
80.02, 800.00 19. 65
80. 52, 880. 25 19.93
81.02, 961. 00 20. 20
81. 53, 042. 25 20. 47
82. 03, 124. 00|20. 73
82. 53, 206. 2520.99||
46 83. 03, 289.00 21. 24
47 83. 53, 372. 25 21. 49
84. 03, 456. 00 21. 74
84. 53, 540. 2521. 99
48
49
77. 51, 106. 25 10. 96
78. 01, 184. 00 11. 50
78. 51, 262. 25|12. 02
79. 0|1, 341.00 12. 52
79. 51, 420. 25 13. 01
80. 01, 500. 00 13. 49
80. 51, 580. 25 13. 95
81. 01, 661. 00 14. 40
81. 51, 742. 25 14. 84
82. 01, 824. 00 15. 27
82. 51, 906. 25 15. 68
83. 01, 989. 00 16. 09
83. 52, 072. 25 16. 49
84. 02, 156.00 16. 88
84. 52, 240. 25 17. 26
85. 02, 325. 00 17. 63
85. 52, 410. 25 18. 00
86. 02, 496. 00 18. 36
86. 52, 582. 25 18. 71
87.02, 669.00 19.05
87. 5|2, 756. 25|19. 39
88. 02, 844. 00 19. 72
88. 52, 932. 25 20.05||
89. 03, 021. 00 20. 37
89. 53, 110. 25 20. 68
910. 25 8. 87
86.0 996.00 9.51
86. 51, 082. 25|10. 13
86. 51, 082. 25 10. 13
87. 01, 169. 00 10. 74
87. 51, 256. 25 11. 33
88. 01, 344. 00|11. 90||
88. 51, 432. 25 12. 45
89. 01, 521. 00|12. 99
89. 51, 610. 25 13. 51
95. 51, 020. 25 9.05
96. 01, 116. 00 9.73
96. 51, 212. 25 10.38
97.01, 309. 00 11. 01
97. 51, 406. 25 11. 63
98. 01, 504. 00 12. 23
98. 51, 602. 25|12. 81
99. 01, 701. 00|13. 38
99. 51, 800. 25 13. 94
90. 01, 700. 00 14. 02 100. 01, 900. 00 14. 48
90. 51, 790. 25 14. 52 100. 52, 000. 25 15.01
91. 01, 881. 00 15. 01 101. 02, 101.00 15. 52
91. 51, 972. 25 15. 48 101. 52, 202. 25|16. 03
92. 02, 064. 00 15. 94 102. 02, 304. 00 16. 52
92. 52, 156. 25 16. 39 102. 52, 406. 25 17.00
93. 02, 249.00 16. 83 103. 02, 509.00 17.47
33. 52, 342. 25 17. 27 103. 52, 612. 25 17. 93
94. 02, 436. 00 17. 69 104. 02, 716. 00 18. 39
94. 52, 530. 25 18. 10 104. 52, 820. 25 18. 83
95. 02, 625.00 18. 51|105. 02, 925. 00 19. 26
95. 52, 720. 25 18. 90 105. 53, 030. 25 19.69
96. 02, 816. 00 19. 29106. 03, 136. 00 20. 11
96. 52, 912. 25 19. 67 106. 53, 242. 25 20. 52
97. 03, 009.00 20. 05107. 03, 349.00 20.92
97. 53, 106. 25 20. 42 107. 53, 456. 25 21. 31
98. 03, 204. 0020. 78 108. 03, 564. 00 21. 70
98. 53, 302. 25 21. 13 108. 53, 672. 25|22. 09
99. 03, 401. 00 21. 48 109. 03, 781. 00|22. 46
99. 53, 500. 25 21. 82 109. 53, 890. 25 22. 83
90. 03, 200. 0020. 99 100. 03, 600.00 22. 16|110. 04, 000. 00 23. 19
90. 53, 290. 25|21. 29 100. 53, 700. 25|22. 49₤110. 54, 110. 25 23. 55
91.03, 381. 00 21. 59 101. 03, 801. 00 22. 82 111. 04, 221. 00 23.90
91. 53, 472. 25|21. 89|101. 53, 902. 25 23. 14111. 54, 332. 25|24. 25
92. 03, 564. 00 22. 18 102. 04, 004. 00 23. 46|112. 04, 444. 00 24. 59
92. 5|3, 656. 25|22. 46|102. 54, 106. 2523. 77 112. 54, 556. 25|24. 93
93. 03, 749. 00 22. 74103. 04, 209. 00 24. 07 113. 0 4, 669. 00 25. 26
93. 53, 842. 25 23. 02 103. 54, 312. 25 24. 38 113. 54, 782. 25 25.59
94. 03, 936. 00 23. 30 104. 04, 416. 00 24. 68 114. 04, 896. 00 25.91
94. 54, 030. 25 23. 57 104. 54, 520. 25 24. 97 114. 55, 010. 25 26. 23
50
95. 04, 125. 00 23. 83 105. 04, 625. 00 25. 26 115. 05, 125. 00 26. 54
85. 03, 625.00 22. 23
78
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
Τ
A
T
T
A
Ĵ
T
A
T
11 105. 51, 130. 25 9. 21 115. 51, 240. 25 9. 35125. 51, 350. 25 9. 46 135. 51, 460. 25 9.56
12 106. 01, 236. 00 9. 91 116. 01, 356. 00 10. 06 126. 01, 476.00 10. 20 136. 01, 596. 00 10. 31
13 106. 51, 342. 25 10. 59 116. 51, 472. 25 10. 76126. 51, 602. 25 10. 91 136. 51, 732. 25 11.05
14 107. 01, 449. 00 11. 24 117. 01, 589. 00 11. 44127. 01, 729. 00 11. 61 137. 01, 869.00 11. 76
15 107. 51, 556. 25 11. 89117. 51, 706. 25 12. 11127. 51, 856. 25 12. 30137. 52, 006. 25 12. 47
16 108.01, 664. 00 12. 51 118. 01, 824. 00 12. 76 128. 01, 984. 00 12. 97138. 02, 144.00 13. 15
17 108. 51, 772. 2513. 12118. 51, 942. 25 13. 39 128. 52, 112. 25 13. 62 138. 52, 282. 25 13.83
18 109. 01, 881.00 13. 72 119. 02, 061. 00 14. 01129. 02, 241. 00 14. 26 139. 02, 421. 00 14. 49
19 109. 51, 990. 25 14. 30 119. 52, 180. 25 14. 62 129. 52, 370. 25 14. 89139. 52, 560. 25 15. 13
20 110. 02, 100. 00 14. 87 120. 02, 300. 00 15. 21 130. 02, 500.00 15. 51 140. 02, 700.00 15. 77
21 110. 52, 210. 25 15. 42 120. 52, 420. 25 15. 79 130. 52, 630. 25|16. 11140. 52, 840. 25 16. 39
22 111.02, 321.00 15. 97 121. 02, 541.00 16. 36 131. 02, 761.00 16. 70 141. 02, 981. 00 17.00
23 111, 52, 432. 25 16. 50 121. 52, 662. 25 16. 91 131. 52, 892. 25 17. 28 141. 53, 122. 25 17. 60
24 112. 02, 544. 00 17.02 122. 02, 784. 00 17. 46 132. 03, 024. 00 17. 84 142. 03, 264.00 18. 19
25 112.52, 656. 25 17. 53 122. 52, 906. 25 17.99 132. 53, 156. 25 18. 40 142. 53, 406. 25 18, 76
26 113.02, 769.00 18.03 123. 03, 029. 00 18. 51 133. 03, 289. 00 18. 95 143. 03, 549. 00 19.33
27 113. 52, 882. 25 18. 52 123. 53, 152. 25 19. 03 133. 53, 422. 2519. 48 143. 53, 692. 25 19.89
28 114. 02, 996. 00 19. 00 124. 03, 276. 00 19. 53134. 03, 556. 00 20. 01144. 03, 836.00 20.43
29 114. 53, 110. 25 19. 47 124. 53, 400. 25/20. 03|134. 53, 690. 2520. 53₤144. 53, 980. 25|20. 97
30 115. 03, 225.00 19. 93 125. 03, 525. 00₤20. 51 135. 03, 825. 00 21.03 145. 04, 125.00 21. 50
31 115. 53, 340. 25 20. 38 125. 53, 650. 2520. 99 135. 53, 960. 25 21. 53 145. 54, 270. 25 22.02
32 116.03, 456.00 20. 82 126. 03, 776. 00 21. 46 136. 04, 096. 00 22.03 146. 0 4, 416. 00 22. 53
33 116. 53, 572. 25 21. 26 126. 53, 902. 25 21. 92 136. 54, 232. 25 22. 51 146. 54, 562. 25 23.04
34 117.03, 689.00 21. 69 127. 04, 029. 00 22. 37|137. 04, 369. 00 22. 98|147. 04, 709. 00 23. 53
35 117. 53, 806. 25|22. 11|127. 54, 156. 25 22. 82137. 54, 506. 25|23. 45|147. 54, 856. 25|24, 02
36 118. 03, 924. 00 22. 52 128. 04, 284. 00 23. 26 138. 04, 644. 00|23. 91|148. 05, 004. 0024, 50
37 118. 54, 042. 25 22. 93 128. 54, 412. 25 23. 69 138. 54, 782. 25 24. 36 148. 55, 152. 25 24.98
38 119.04, 161. 00(23. 33|129. 04, 541. 00/24. 11/139. 04, 921. 00/24. 81/149. 0|5, 301. 00₤25. 44
39 119. 54, 280. 25 23. 73 129. 54, 670. 2524. 53 139. 55,060. 25 25. 25149. 55, 450. 2525.90
40 120. 04, 400. 00 24. 11 130. 04, 800. 00 24. 94 140. 05, 200. 00 25. 68 150. 05, 600.00 26. 36
41 120. 54, 520. 25 24. 50 130. 54, 930. 2525. 35 140. 55, 340. 25 26. 11 150. 55, 750. 25|26, 80
42 121. 04, 641. 00 24. 87 131. 0|5, 061. 00|25. 74 141. 05, 481. 0026. 53 151. 05, 901. 00₤27. 25
43 121. 54, 762. 25|25. 24 131. 55, 192. 25|26. 14141. 55, 622. 25|26. 95₤151. 56, 052. 25|27. 68
44 122.04, 884. 00 25. 61 132. 05, 324. 00 26. 53|142. 05, 764. 00[27. 36|152. 06, 204. 00 28. 11
45 122. 55, 006. 25 25. 97132. 5|5, 456. 25|26. 91|142. 5|5, 906. 25|27. 76|152. 56, 356. 25 28. 53
46 123. 05, 129. 00 26. 33 133. 05, 589. 00 27. 29143. 06, 049. 00 28. 16153. 06, 509. 00 28.95
47 123. 55, 252. 25|26. 68₤133. 55, 722. 2527. 66 143. 56, 192. 25 28. 55 153. 56, 662. 25 29.36
48 124. 05, 376. 00 27. 02 134. 05, 856. 00 28. 03 144. 06, 336. 00 28. 94154. 06, 816. 00 29. 77
49 124. 55, 500. 25 27. 36 134. 55, 990. 25 28. 39 144. 56, 480. 25 29. 32 154. 56, 970. 25 30.17
0650 125.05, 625.00 27.70 135. ,
135.06, 125.00 28.75 145.06, 625.00 29. 70 155. 07, 125.00 30. 57
HYDRAULIC TABLES
79
feet, T, and
Table 5.-Area in
in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 14 to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
↑ T
A
T
T
A
T
A
11 145. 51, 570. 25 9. 65 155. 51, 680. 25 9. 73 165. 51, 790. 25 9. 80 175. 51, 900. 25 9. 86
12 146. 01, 716. 00 10. 42 156. 01, 836. 00 10. 51 166. 01, 956. 00|10. 59 176. 02, 076. 00|10. 66
13 146. 51, 862. 25 11. 16 156. 51, 992. 25 11. 27 166. 52, 122. 25 11. 36 176. 52, 252. 25|11. 44
14 147. 02, 009. 00 11.90 157.02, 149. 00 12. 01 167. 02, 289. 00 12. 12177. 02, 429. 00 12. 21
15 147. 52, 156. 25 12. 62 157. 52, 306. 25 12. 75 167. 52, 456. 2512. 87 177. 52, 606. 25 12. 97
16 148. 02, 304. 00 13. 32 158. 02, 464. 00 13. 47 168. 02, 624. 00/13. 60178. 02, 784.00 13. 72
17 148. 52, 452. 25 14. 01 158. 52, 622. 25 14. 17168. 52, 792. 25 14. 32 178. 52, 962. 25 14. 45
18 149. 02, 601. 00 14. 69 159. 02, 781. 00 14. 86 169. 02, 961. 00 15. 02179. 03, 141.00 15. 17
19 149. 52, 750. 25 15. 35 159. 52, 940. 25|15. 54 169. 53, 130. 25|15. 72179. 53, 320. 25 15. 87
20 150.02, 900.00 16.00 160. 03, 100. 0016. 21 170. 03, 300.00 16. 40 180. 03, 500.00 16. 57
21 150. 53, 050. 25|16. 64160. 53, 260. 25 16. 87 170. 53, 470. 25 17. 07 180. 53, 680. 25 17. 25
22 151. 03, 201. 00 17. 27 161. 03, 421. 00 17. 51 171. 03, 641. 00 17. 73 181.03, 861. 00 17. 93
23 151, 53, 352. 25 17. 89 161. 53, 582. 25 18. 15171. 53, 812. 25 18. 38 181. 54, 042. 25 18. 59
24 152. 03, 504. 00 18. 49 162. 03, 744. 00 18. 77 172. 03, 984. 00 19. 02|182. 04, 224. 00₤19. 25
25 152. 53, 656. 25 19. 09 162. 53, 906. 25 19. 38 172. 54, 156. 25|19. 65|182. 54, 406. 25 19. 89
26 153. 03, 809. 00 19. 67 163. 04, 069. 0019. 99 173. 04, 329. 0020. 27|183. 04, 589. 00 20. 52
27 153. 53, 962. 25 20. 25 163. 54, 232. 2520. 58|173. 54, 502. 25 20. 88 183. 54, 772. 25 21. 15
28 154.04, 116. 00 20. 82 164. 0/4, 396. 00|21. 16 174. 04, 676.00 21. 48 184. 04, 956. 00 21. 76
29 154. 54, 270. 25 21. 37 164. 54, 560. 25 21, 74 174. 54, 850. 25 22. 07184. 55, 140. 25 22. 37
30 155. 04, 425. 00|21. 92|165. 04, 725. 00 22. 30|175. 0|5, 025. 00|22. 65|185. 05, 325. 00 22. 97
31 155. 54, 580. 25|22. 46|165. 54, 890. 25|22. 86|175. 5|5, 200. 25|23. 22|185. 55, 510. 25|23. 56
32 156.04, 736. 00|22.99|166. 05, 056. 00 23. 41 176. 05, 376. 00 23. 79₤186. 0|5, 696. 00 24. 14
33 156. 54, 892. 25|23. 52|166. 55, 222. 25|23. 95|176. 55, 552. 25|24. 35|186. 55, 882. 25 24. 71
34 157.05, 049. 00 24. 03 167. 05, 389. 00 24. 49 177. 05, 729.00 24. 90 187. 06, 069. 00 25. 28
35 157. 55, 206. 25 24. 54|167. 5)5, 556. 25|25. 01|177. 5|5, 906. 25|25. 44|187. 56, 256. 25 25.84
36 158. 05, 364. 00 25. 04 168. 05, 724. 00 25. 53 178. 06, 084. 00 25. 98 188. 06, 444.00 26. 39
37 158. 55, 522. 25|25. 53|168. 5|5, 892. 25|26. 04₤178. 56, 262. 25|26. 50₤188. 56, 632. 25|26. 93
38 159.05, 681. 00|26. 02/169. 06, 061. 00₤26. 54 179. 06, 441. 00|27. 02₤189. 06, 821. 00 27. 47
39 159. 55, 840. 25 26. 50 169. 56, 230. 25|27. 04₤179. 56, 620. 25|27. 54|189. 57, 010. 25|28. 00
40 160. 06, 000. 00 26. 97 170. 06, 400. 00 27. 53 180. 06, 800.00 28. 05/190. 07, 200. 00 28. 52
41 160. 56, 160. 25 27. 44 170. 56, 570. 25 28. 02180. 56, 980. 25 28. 55190. 57, 390. 25 29.04
42 161. 06. 321. 00 27. 90 171. 06, 741, 00 28. 49 181. 07, 161. 00 29. 04/191. 07. 581. 00 29. 55
43 161. 56, 482. 25|28. 35|171. 56, 912. 25 28. 96|181. 57, 342. 25 29. 53191. 57, 772. 25 30. 05
44 162. 06, 644. 00 28. 80 172. 07, 084. 00 29. 43|182. 07, 524. 0030. 01192. 07, 964. 0030. 55
45 162. 56, 806. 25 29. 24 172. 57, 256. 25 29.89 182. 57, 706. 25 30. 49 192. 58, 156. 25 31.04
46 163.06, 969. 00 29. 68 173. 07, 429.00 30. 34 183. 07, 889. 0030. 96193. 08, 349.00 31. 53
47 163. 57, 132. 25|30. 11|173. 57, 602. 25|30. 79|183. 58, 072. 2531. 42193. 58, 542. 25|32. 01
48 164. 07. 296. 0030. 53|174. 07, 776. 00|31. 23 184. 08, 256. 00|31. 88/194. 08, 736. 00 32. 48
49 164. 57, 460. 25 30. 95 174. 57, 950. 2531. 67 184. 58, 440. 25 32. 34 194. 58, 930. 25 32. 95
33.42
175. 08, 125. 0032. 10.185. 08, 625.00 32. 79195. 09, 125.00|50 165.07, 625.00 31. 37 175.0
33.
80
HYDRAULIC TABLES
Table 5.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
¼
side slopes 14 to 1—Continued
Bottom width
180 feet
T, and
T,

Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
T
A
=22= 22222 222** *2*** A****
185.5 2,010. 25
9.92
195. 52, 120, 25
9.97
205. 5| 2, 230. 25|
10.02
12
13 186. 5 2,382. 25
14
186. 0) 2, 196. 00
10. 73
196.02, 316. 00
10.79
206. 0 2, 436.00
10.84
11.52
196.5 2,512. 25
11.59
206. 52, 642. 25
11.65
187.0 2, 569. 00
12.30
197.0 2,709. 00
12.38
207.02, 849. 00
12.45
15
187.5 2,756. 25
13.07
197. 5
2,906. 25
13. 16
207. 5 3,056. 25
13.23
16 188. 02, 944. 00
13.82
198. 0
3, 104. 00
13.92
208. 0 3, 264. 00
14.01
17
188. 53, 132. 25
14.57
198. 5
3, 302. 25
14.67
208.5 3, 472. 25
14.77
18
189.0 3, 321.00
15.30
199.0 3, 501.00
15.42
209. 0 3, 681.00
15. 52
19
189.5 3, 510. 25|
16.02
199.5 3, 700. 25
16.15
209.5 3, 890. 25
16. 27
20
190.0 3,700. 00
16.72
200.0 3,900. 00
16.87
210.0 4, 100. 00
17.00
21
190. 5 3, 890. 25
17.42
200. 5 4, 100. 25
54,
17.58
210.54, 310.25
17.72
191. 04, 081. 00
18. 11
201. 04, 301.00
18. 27
211.04, 521. 00
18.43
23
191. 54, 272. 25
18.79
201.5 4, 502. 25|
18.96
211.5 4,732. 25
19. 13
24
192. 0 4, 464. 00|
19.45
202. 0 4, 704. 00|
19.64
212.0 4,944.00
19.82
25
192. 54, 656. 25
20. 11
202.54, 906. 25
20.31
212.55, 156. 25
20.50
26
193. 0 4, 849. 00
20.76
203.05,
203. 0 5, 109. 00
20.97
213.05, 369. 00
21.17
27
193.5 5,042. 25
21.40
203. 5 5, 312. 25
21.62
213. 55, 582. 25
21.83
28
194.0 5, 236. 00
22.03
204. 05, 516. 00
22. 27
214.0 5,796. 00
22.49
29
194. 5 5, 430. 25
22.65
204. 5 5, 720. 25
22.90
214.5 6, 010. 25
23. 14
30
195.0 5, 625. 00
23. 26
205. 0 5, 925.00
23.53
215.0 6, 225. 00
23.77
31
195. 5 5, 820. 25
23.86
205.5 6, 130. 25
24. 14
215.5 6, 440. 25
24.40
32
196.0 6, 016. 00
24. 46
206.0 6, 336. 00
24.75
216.0 6, 656. 00
25.03
33
196.5 6, 212. 25
25.05
206. 56, 542. 25
25.35
216.5 6, 872. 25
25.64
34
197.0 6, 409. 00
25.63
207.0 6, 749.00
25.95
217.0] 7, 089.00
26. 25
35
197.5 6, 606. 25
26. 20
207.5 6, 956. 25
26.53
217.5 7,306. 25|
26.85
36
198. 0 6, 804. 00
26.76
208.07, 164. 00
27.11
218.0] 7, 524. 00
27.44
37
198.5 7,002. 25
27.32
208. 57, 372. 25
27.69
218.5 7, 742. 25
28.02
38
199.0 7, 201.00
27.87
209.07, 581. 00
28.25
219.0 7, 961.00
28.60
39
199. 57, 400. 25
28.42
209.5 7,790. 25
28.81
219.58, 180. 25
29.17
40
200.0 7,600.00
28.96
210.0 8,000. 00
29.36
220.0 8, 400.00
29.74
41
200. 5 7,800. 25|
29.49
210. 5| 8, 210. 25
29.91
220.5 8, 620. 25
30.30
42
201. 08, 001. 00
30.01
211.0 8, 421.00
30.45
221.08, 841.00]
30.85
43
201.5 8, 202. 25
30.53
44
202. 0 8, 404. 00
31.04
211.5 8, 632. 25||
212. 0 8, 844. 00
30.98
221.5 9,062. 25
31.40
31.51
222.0 9, 284. 00
31.94
45
.202.5 8, 606. 25
31.55
212. 5 9, 056. 25
32. 03
222. 59, 506. 25
32.47
46
203. 0 8, 809. 00
32.05
213.09, 269. 00
32.54
223.0 9,729.00
33.00
47
203. 59, 012. 25
32.55
213.5 9, 482.25
33.05
223.5 9,952. 25
33.52
48
204. 0 9, 216. 00
33.04
214.0 9,696. 00
33.56
?
224. 010, 176. 00
34.04
49
204.5 9, 420. 25
33.52
214.5 9, 910. 25
34.05
224.510, 400. 25
34.55
50
35.06
205. 0 9, 625. 00
225. 010, 625. 00
34.00
215. 010, 125.00 34.55
010,
HYDRAULIC TABLES
81
Table 6.—Area in square feet, A, top
top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
A
T
T
A
T T
A
0.2
2.2
0.42 0.17
3. 2
0.62 0.18
4. 2
0.82 0.18 5.2
0.4
2.4
.88
.30
3.4
1.28 .33
4.4
1.68
0.6 2.6
1.38 .41
3.6
1.98 .46
4.6
2.58 .48 5.6
.34 5.4
1.02 0.19
2.08 .35
3.18 .50
0.8
2.8
1.92 .51
3.8
2.72
.57
4.8
3.52 .61 5.8
4.32 .64
1.0
1.2
1.4
1.6
1.8
0246 00
3.0
2.50.59
4.0
3.50 .67
5.0
4.50 .72
6.0
5.50 .76
3.2
3. 12.67
4.2
4.32.76
5.2
5. 52.83
6. 2
6.72 .87
3.4
3.78.74 4.4
5. 18.84
5.4
6.58 .92
6.4
7.98 .98
3.6
4.48 .80
4.61
6.08 .92
5.6
7.68 1.01 6.6
9.28 1.08
3.8
5. 22
.87
4.8
7.02 1.00
5.8
8.82 1.10
6.8
10.62 1.18
2.0
4.0
6.00 .93] 5.0
8.00 1.07
6. 0
10.00 1.18
7.0
12.00 1.27
2.2
4. 2
6.82 .99
5.2
9.02 1.14
6.2
11. 22 1.26
7.2
13.42 1.35
2.4
4. 4
7.68 1.04
5. 4
10.08 1.20,
6. 4
12.48 1.33 7.4
14.88 1.44
2.6
4.6
8.58 1. 10
5.6
2.8
4.8
9.52 1. 15
5.8
11.18 1.27 6.6
12.32 1.33
6.8
13.78 1.40
15. 12 1.47
7.6
16.38 1.51
7.8
17.92 1.59
3.0
5.0
10.50 1. 21
6. 0
3.2
5.2
3.4 5.4
3.6 5.6
11.52 1.26 6. 2
12.58 1.31;
13.68 1.36
6.4
13.50 1.39 7.0
14.72 1.45 7.2
15.98 1.51
16.50 1.54
17.92 1.61 8.2
8.0
19.50 1.67
21. 12 1.74
7.4
19.38 1.67
8.4
22.78 1.81
6.6
17.28 1.56
7.6
20.88 1.73
8.6
24. 48
1.88
3.8
5.8
14.82 1.41 6.8
18.62 1.62
7.8
22. 42 1.79
8.8
26.22 1.94
4.0
6.0
16.00 1.46 7.0
20.00 1.67
8.0
24.00 1.85
9.0
28.00 2.01
4.2
6. 2
17.22 1.51
7.2
4.4
6.4
18.48 1.56
7.4
21.42 1.73
22.88 1.78 8.4
8.2
25. 62 1.91 9.2
29.82 2.07
27.28 1.97 9.4
31.68 2.13
4.6
6.6
19.78 1.61
7.6
24. 38 1.84 8.6
28.98 2.03 9.6
33.58 2.20
4.8 6.8
21.12 1.66
1.66
7.8
25.92 1.89 8.8
30.72 2.09 9.8
35.52 2.26
5.0 7.0
5.2 7.2
5.4
7.4
5.6
7.6
5.8 7.8
22.50 1.71
23.92 1.76 8.2
25.38 1.80 8.4
26.88 1.85 8.6|
28.42 1.90
8.0
8.8
27.50 1.94 9.0
29.12 1.99 9.2
30.78 2.04 9.4
32.48 2.09]
9.6
34.22 2.14 9.8
32.50 2.14 10.0]
37.50 2.32
34. 32 2.20 10.2]
36. 18 2.25 10.4
38.08 2.30 10.6
40.02 2.36 10.8
39.52 2.38
41.58 2.44
43.68 2.49
45.82 2.55
6.0 8.0
30.00 1.95
9.0
6.2 8.2
31.62 1.99 9.2
36.00 2.19 10.0
37.82 2.24 10. 2
42.00 2.41| 11.0|
48.00 2.61
6.4 8.4
33.28 2.04 9.4
39.68 2.29 10.4
44.02 2.46] 11.2
46.08 2.52 11.4
50.22 2.66
52.48 2.72
6.6 8.6
34.98 2.09
9.6
6.8
8.8
36.72 2. 13
9.8
41.58 2.34 10. 6
43. 52 2.39 10.8
48.18 2.57| 11.6
54.78 2.77
50.32 2.62] 11.8
57.12 2.83
7.0 9.0
7.5
9.5
8.0
10.0
38.50 2.18) 10. 0
43. 12 2.30) 10. 5
48.00 2.41 11. 0
8.5
9.0 11.0
10.5
53. 12 2.53| 11.5
58.50 2.64 12.0
9.5 11.5
10.0 12.0
64.12 2.76 12. 5
70.00 2.87 13.0
73.62 3.04 13. 5
80.00 3.15 14.0
45.50 2.44 11.0
50.62 2.56 11.5
56.00 2.68 12.0
61.62 2.80 12.5
67.50 2.92 13. 0:
58. 12 2.80) 12.5
64.00 2.92 13.0
70.12 3.05 13. 5
76.50 3.17 14.0
83. 12 3.29 14.5
90.00 3.41 15.0
92.62 3.53
100.00 3.65
52.50 2.67] 12.0
59.50 2.88
65.62 3.01
72.00 3.15
78.62 3.28
85.50 3.40
10. 5
107.62 3.78
12.5
97.12 3.53 15.5
76. 12 2.99 13. 5
86.62 3.27 14.5
82
HYDRAULIC TABLES
T, and
feet, T,
Table 6.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
T
A
T
A
T
T
T
A
T
0.2
6. 2
1.22 0.19
7.2
1.42 0.19
8.2
1.62 0.19
9.2
1.82 0.19
0.4
6. 4
2. 48
.36 7.4
0.6
6. 6
3.78
. 51 7.6
0.8
6.8
5. 12
.66 7.8
2.88 .36
4.38 .53 8.6
5.92 .67 8.8
8.4
3.28 .37
9.4
3.68
.37
4.98 .53
9.6
5. 58
.54
6.72
69 9.8
7.52
.70
1.0
1. 2
1.4
1.6
1.8
0246 00
7.0
6.50 .79 8.0
7.50 81
9.0
7.2
7.92.91
8.2
9.12.94
9.2
8.50 .83 10.0
10.32 .97 10.2
9.50
.85
11.52 .99
7.4
9.38 1.03
8.4
10.78 1.06
9.4
12.18 1.09] 10.4|
13.58 1.12
7.6
10.88 1.14
8.6
12. 48 1.18
9.6
14.08 1.22] 10.6|
15.68 1.25
7.8
12. 42 1. 24
8.8
14. 22 1.29
9.8
16.02 1.33 10.8
17.82 1.37
2.0 8.0
2.2
8.2
2.4 8.4
14.00 1.34] 9.0
15. 62 1.43] 9.2|
17.28 1.52 9.4
2.6
8.6
18.98 1.61 9.6
2.8
8.8
20.72 1.69
9.8
16.00 1.39| 10.0|
17.82 1.50 10. 2
19.68 1.59 10. 4
21.58 1.68 10.6
23.52 1.77 10.8
18.00 1.44|| 11.0
20.02 1.55 11.2
22.08 1.65 11. 4
24.18 1.75 11.6
26.32 1.85 11.8
20.00 1.48
22.22 1.60
24.48 1.70
26.78 1.81
29.12 1.91
3.0 9.0
22.50 1.77 10.0
25.50 1.86 11.0
3.2
9.2
24.32 1.85 10. 2
27.52 1.94 11. 2
28.50 1.94 12. 0
30.72 2.03 12. 2
31.50 2.01
33.92 2.10
3.4
9.4
26.18 1.92 10.4
29.58 2.03 11.4
32.98 2.11 12. 4
36.38 2.19
3.6
9.6
28.08 2.00 10, 6
31.68 2.11 11,6
35.28 2.20 12.6
38.88 2.28
3.8
9.8
30.02 2.07 10.8
33.82 2.18 11.8
37.62 2.28 12.8
41.42 2.37
4.0
10.0
32.00 2. 14 11.0
36.00 2.26| 12.0
40.00 2.36 13.0
44.00 2.45
4.2
10. 2
34.02 2. 21| 11.2
38.22 2.33 12. 2
42.42 2.44|| 13.2
46.62 2.53
4.4
10.4
4.6
10. 6
4.8
10. 8
36.08 2.28 11.4
38. 18 2.34 11. 6
40. 32 2. 41
40.48 2.40 12.4
44.88 2.52 13. 4
49.28 2.62
42.78 2.47 12.6
11.8
45. 12 2.54 12.8
47.38 2.59 13.6
49.92 2.66 13.8
51.98 2.70
54.72 2.77
5.0
11.0
5.2
11. 2
5.4
11.4
42.50 2.47 12.0
44.72 2.54 12. 2
46.98 2.60 12.4
5.6
11.6
49.28 2.66| 12.6|
5.8
11.8
51.62 2.72 12.8
47.50 2.61, 13.0
49.92 2.68 13. 2
52.38 2.75 13.4
54.88 2.81| 13.6|
57.42 2.88 13.8
52.50 2.74 14.0
55.12 2.81 14. 2
57.50 2.85
60.32 2.92
6.0
12.0
6.2
12. 2
6.4
12.4
6.6
12. 6
6.8
12.8
54.00 2.78 13.0
56. 42 2.84 13. 2
58.88 2.90 13.4
61.38 2.96| 13.6|
63.92 3.01] 13.8
60.00 2.94 14.0
62. 62 3.00 14.2
65.28 3.06 14.4
67.98 3.12 14. 6
70.72 3.18 14. 8
57.78 2.88 14.4
60.48 2.95 14.6
63. 22 3.01 14.8
66.00 3.08 15.0
68.82 3.15 15. 2
63.18 3.00
66.08 3.07
69.02 3.14
72.00 3.21
75.02 3.28
71. 68 3.21| 15. 4
78.08 3.35
74.58 3.28 15.6
77.52 3.34 15.8
81.18 3.42
84.32 3.48
7.0 13.0
66.50 3.07 14.0
7.5 13.5
73.12 3.21 14. 5
8.0 14.0
8.5 14.5
9.0 15.0
80.00 3.35] 15.0
87.12 3. 48 15.5
94.50 3.62 16.0
73.50 3.24 15.0
80.62 3.39 15.5
88.00 3.54 16.0
95.62 3.68 16. 5
103.50 3.82 17.0
80.50 3.40 16.0
88.12 3.56 16.5
96.00 3.71 17.0
104. 12 3.86 17.5
112.50 4.00 18.0
87.50 3.55
95.62 3.71
104.00 3.87
112.62 4.02
121.50 4. 17
9.5 15.5
10.0 16.0
102. 12 3.75| 16. 5
110.00 3.88 17.0
111.62 3.95 17.5
120.00 4.09 18.0
18.0
121. 12 4. 14
130.00 4.28 19.0
18.5
130.62 4.32
140.00 4.46
10.5 16.5
149.62 4.61
118. 12 4.01 17.5
139.12 4. 42| 19.5|
128.62 4.22 18.5
HYDRAULIC TABLES
83
feet,
Table 6.—Area in
in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued
T, and
T,

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
A
T T
A
-
T
A
T
0.2
10.2
2.02 0.19 12.2
0.4
10.4
4.08 .37 12.4
0.6
10.6
6. 18
.54 12.6
0.8 10.8
8.32
.71 12.8
2.42 0.19 14.2
4.88 .38 14.4
7.38 55 14.6
9.92.72 14.8]
2.82 0.20 16.2
5.68 .38 16.4
3.22 0.20
6.48 .38
8.58 56 16.6
11.52
.73 16.8
9.78 .56
13.12.74
1.0 11.0
10. 50
1.2 11.2
1.4
11.4
.86 13.0
12.72 1.00 13. 2
14.98 1.14 13.4
1.6 11.6
17.28 1.27| 13.6
1.8
11.8
2.0 12.0
2.2
12.2
19.62 1.40 13.8
22.00 1.52 14.0
24. 42 1.64 14. 2
12.50 .88 15.0
15.12 1.03| 15.2
17.78 1.18 15.4
20.48 1.31 15.6
23. 22 1.45 15.8
14.50
.89 17.0
16.50 .90
17.52 1.05 17.2
20.58 1.20 17.4
23.68 1.35 17.6
26.82 1.49 17.8
19.92 1.07
23.38 1.22
26.88 1.37
30.42 1.52
26.00 1.58 16.0
30.00 1.62 18.0
34.00 1.66
28.82 1.70 16. 2
33.22 1.76 18. 2
37.62 1.80
2.4
12. 4
26.88 1.75 14.4
31.68 1.82| 16.4|
2.6
12.6
29.38 1.86 14.6
34.58 1.94 16.6
2.8
12.8
31.92 1.96 14.8
37.52 2.05 16.8
36.48 1.88 18.4|
39.78 2.01 18.6
43.12 2.13 18.8
41.28 1.93
44.98 2.06
48.72 2.19
3.0
13.0
34.50 2.06) 15.0
40.50 2.16 17.0
46.50 2.25 19.0
52.50 2.31
3.2 13.2
37.12 2.16 15.2
43.52 2.27 17.2
49.92 2.36 19.2
56.32 2.43
3.4
13. 4
39.78 2,26 15. 4
46.58 2.38 17.4
53.38 2.47 19.4
60.18 2.55
3.6
13.6
3.8
13.8
42.48 2.35 15.6
45.22 2.44 15.8
49.68 2.48 17.6
56.88 2.58 19.6
64.08 2.66
52.82 2.58 17.8
60.42 2.69 19.8
68.02 2.78
4.0 14.0
48.00 2.53| 16.0
56.00 2.67 18.0
4.2
14. 2
4.4
14. 4
4.6
14.6
4.8
14.8
50.82 2.62 16.2
53.68 2.71| 16.4|
56.58 2.79 16.6
59.52 2.87 16.8
59.22 2.77| 18.2
64.00 2.79| 20.0
67.62 2.89 20.2
72.00 2.89
76.02 2.99
62.48 2.86 18.4
65.78 2.95 18.6
69.12 3.04] 18.8
71.28 2.99 20.4
74.98 3.09 20.6
78.72 3.18 20.8
80.08 3.10
84.18 3.20
88.32 3.30
5.0
15.0
5.2
15, 2
5.4 15.4
5.6 15.6
5.8 15.8
62.50 2.95 17.0
65.52 3.03 17.2
68.58 3.11 17.4
71.68 3.18 17.6
74.82 3.26 17.8
72.50 3.13 19.0
75.92 3.21 19.2
79.38 3.30 19.4
82.88 3.38 19.6
86.42 3.46 19.8
82.50 3.28 21.0
86.32 3.37 21.2
90.18 3.46 21.4
94.08 3.55 21.6
98,02 3.63 21.8
92.50 3.40
96.72 3.50
100.98 3.60
105.28 3.69
109.62 3.78
6.0 16.0
6.2
16.2
6.4
16. 4
6.6 16.6
6.8
16.8
78.00 3.33 18.0
81.22 3.40 18. 2
84.48 3.47 18.4
87.78 3.55 18.6
91.12 3.62 18.8]
90.00 3.54 20.0
93.62 3.62 20, 2
97.28 3.70 20.4
100.98 3.77 20.6
104.72 3.85] 20.8]
102.00 3.72 22.0
106.02 3.80 22.2
110.08 3.89 22.4
114. 18 3.97 22.6
118.32 4.05 22.8
114.00 3.88
118.42 3.97
122.88 4.05
127.38 4. 14
131.92 4.23
7.0
17.0
7. 5
17.5
8.0
18.0
94.50 3.68 19.0
103. 12 3.85 19.5
112.00 4.02 20.0
8.5 18.5 121.12 4.18 20.5
9.0 19.0 130.50 4.33 21.0
9.5 19.5 140.12 4.49 21.5
10.0 20.0 150.00 4.64 22.0
108.50 3.92 21.0
118. 12 4. 11 21.5
128.00 4.28 22.0
138. 12 4.45 22.5
148.50 4.62 23.0
122.50 4.13 23.0
133.12 4.33 23.5
144.00 4.52 24.0
155.12 4.70| 24.5
166.50 4.88 25.0
136.50 4.31
148.12 4.52
160.00 4.72
172.12 4.92
184.50 5.11
159. 12 4.79 23.5
170.00 4.95| 24.0
178.12 5.05 25.5
190.00 5.23 26.0
197.12 5.29
210.00 5.47
10.5 20.5 160.12 4.78 22. 5
223.12 5.65
181. 12 5. 11 24. 5
202. 12 5.39 26.5
84
HYDRAULIC TABLES
T, and
Table 6.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
Τ
A
до
Τ
A
r T
A
g
0.2
18. 2
3.62 0.20 20.2
0.4
18. 4
7.28 .39 20.4
0.6
18. 6
0.8
18.8
10.98 .57 20.6
14.72.74 20.8
12. 18
4.02 0.20 22. 2
8.08
.39
.57 22.6
22. 4
4.42 0.20 24.2
8.88
4.82 0.20
39 24.4
13. 38
.57 24.6
16.32
.75 22.8
17.92
.75 24.8
9.68 .39
14.58
19.52 .76
.58
1.0
19. 0
1.2
19.2
1.4
19.4
1.6
19. 6
1.8
19.8
18.50 .91 21.0
22.32 1.08 21.2
26.18 1. 24 21.4
30.08 1.39] 21.6
34.02 1.54 21. 3
20.50 .92 23.0
24.72 1.09】 23. 2
28.98 1.25 23.4
33. 28 1.41 23.6
37.62 1.57 23.8
22.50
.93| 25.0|
24.50 .93
27.12 1.10 25.2
31.78 1.26 25.4
36.48 1.43 25.6
41.22 1.58 25.8
29.52 1.11
34.58 1.27
39.68 1.44
44.82 1.60
2.0
20.0
38.00 1.691 22.0
42.00 1.72 24.0
46.00 1.74 26.0
50.00 1.76
2.2 20.2
42.02 1.83 22.2
46.42 1.86 24. 2
50.82; 1.89 26. 2
55.22 1.91
2.4
20.4
46.08 1.97 22.4
50.88 2.01| 24.4|
2.6
20.6
50.18 2.11 22. 6
2.8
20.8
54.32 2. 24| 22.8
55.38 2.15 24.6
59.92 2.28 24.8
55.68 2.03) 26.4
60.58 2.18 26. 6
65. 52 2.32 26.8
65. 78 2.21
71.12 2.35
60.48 2.06
3.0
21. 0
58.50 2.37 23.0
3.2
21. 2
62.72 2.49 23. 2
3.4
21. 4
66.98 2.62 23.4
3.6
21. 6
71. 28 2.74 23.6
3.8
21.8
75.62 2.85 23.8
64.50 2.41 25.0
69.12 2.55 25. 2
73.78 2.67 25.4
78.48 2.80 25. 6
83.22 2.92 25.8
70.50 2.46 27.0
75.52 2.59 27.2
80.58 2.72 27.4
85.68 2.85 27.6
90.82 2.98 27.8
76.50 2.49
81.92 2.63
87.38 2.76
92.88 2.90
98.42 3.03
4.0
22.0
80.00 2.97 24.0
4.2
22. 2
84.42 3.08 24. 2
4.4
22.4
88.88 3.19] 24.4|
4.6
22. 6
4.8
22.8
93.38 3.30| 24.6]
97.92 3.41 24.8
88.00 3.04] 26.0|
92.82 3.16] 26. 2
97.68 3.27| 26.4|
102.58 3.39| 26.6
107.52 3.50 26.8
96.00 3.10] 28.0]
101. 22
106. 48 3.34[ 28, 4
111.78 3.46 28.6
117. 12 3. 58 28.8
104.00 3.16
3. 22| 28, 2
109.62 3.28
115.28 3.41
120.98 3.53
126.72 3.65
5.0
23.0
5.2
23. 2
102.50 3.51 25.01
107.12 3.62】 25. 2
112.50 3.61| 27.0
117.52 3.72 27.2
122.50 3.69 29.0
127.92 3.80 29. 2
132.50 3.77
5.4
23.4
5. 6
23.6
111.78 3.72 25.4
116. 48 3.82 25.6
122.58 3.82 27. 4
5.8
23.8
121. 22 3.91 25. Si
127.68 3.93] 27.6
132.82 4.03 27.8
133.38 3.91 29.4
138.88 4.02 29.6
144.42 4. 13 29.8
138.32 3.88
144. 18
150.08 4.11
4.00
156.02 4. 22
6.0
24.0
126.00 4.01 26.0
6.2
24. 2
130.82 4. 11| 26. 2
6.4
24.4
6.6
24. 6
6.8
24.8
135. 68 4.20] 26.4]
140.58 4.29 26.6
145.52 4.38] 26. 8
7.0
25.0
150.50 4. 47 27.0
7.5
25.5
8.0
26.0
8.5 26.5
9.0
27.0
163. 12 4.69 27.5
176.00] 4.90] 28. 0
189.12 5.11 28. 5
202.50 5.31| 29.0
9.5 27.5
10.0
28.0
216. 12 5.51] 29. 5
230.00 5.70 30.0
138.00 4.13 28.0
143. 22 4. 23 28. 2
148.48 4.33 28.4
153.78 4.42] 28.6|
159.12 4.52 28.8
164.50 4.61 29.0
178. 12 4.84 29.5
192.00 5.07] 30.0
206.12 5.28 30.5
220.50 5.50 31.0
235.12 5.70 31.5
250.00 5.90| 32. 0
178.50 4.74 31.0
193. 12 4.98 31.5
208.00 5.21 32.0
223. 12 5. 44 32.5
238.50 5.66 33.0|
254.12 5.88 33.5
270.00 6.09 34.0
192.50 4.85
208.12 5.10
224.00 5.35
240. 12 5.58
|256.50 5.81
273.12 6.04
290.00] 6. 26
150.00 4. 24
155. 62 4.34 30. 2
161. 28 4.44 30.4
166.98 4.54 30.6
172.72 4.64] 30.8]
30. 01
162.00 4.33
168.02 4.44
174.08 4.54
180.18 4.65
186.32 4.75
10.5
307.12 6.47
28.5
286. 12 6.29 34.5
244. 12 5.89| 30.5
265.12 6. 10 32.5
HYDRAULIC TABLES
85
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
Τ
A
T T
A
r T
A
0.2
26.2
5.22 0.20 28.2
5.62 0.20 30.2
6.02 0.20 32.2
6.42 0.20
0.4
26.4
10.48 .39 28.4
0.6 26.6 15.78
0.8 26.8 21.12
11. 28
.39 30.4
12.08 .39 32.4
12.88 .39
.58 28.6
16.98
.58 30.6
.76 28.8
22.72
.76 30.8
18. 18
24.32
.58 32.6
.77 32.8
19.38 .58
25.92 .77
1.0 27.0
26.50 .94 29.0
28.50
.94 31.0
1.2 27.2
31.92 1.11 29. 2
1.4 27.4
37.38 1.28 29.4
34. 32 1.12 31. 2
40.18 1.29 31.4
1.6
27.6
42.88 1.45 29.6
46.08 1.46 31.6
30.50 .95| 33.0
36.72 1.12 33. 2
42.98 1.30 33.4
49.28 1.47 33.6
32.50 .95
39.12 1.13
45.78 1.30
52.48 1.48
1.8
27.8
48.42 1.61 29.8
52.02 1.62 31.8
55.62 1.63 33.8
59.22 1.64
2.0
28.0
54.00 1.77 30.0
58.00 1.791 32.0
2.2
28. 2
59.62 1.93 30.2
64.02 1.94 32. 2
2.4
28. 4
65.28 2.08 30.4
70.08 2.10 32.4
2.6
28.6
70.98 2.23] 30.6
76.18 2.25 32.6
2.8
28.8
76.72 2.38 30.8
82.32 2.40 32.8
62.00 1.80 34. 0
68.42 1.96 34.2
74.88 2.12 34.4
81.38 2.27| 34.6|
87.92 2.42 34.8
66.00 1.81
72.82 1.97
79.68 2.13
3.0 29.0
3.2 29.2
3.4 29.4
3.6 29.6
3.8 29.8
82.50 2.52| 31.0
88.32 2.66 31.2
94.18 2.80 31.4
100.08 2.94 31.6
106.02 3.07 31.8
88.50 2.55| 33.0
94.72 2.69 33. 2
100.98 2.84 33. 4
107.28 2.98 33.6
113.62 3. 11 33.8
94.50 2.57 35.0
101.12 2.72 35.2
107.78 2.87 35.4
114. 48 3. 01 35.6
121.22 3.15 35.8
86.58 2.29
93.52 2.44
100.50 2,60
107.52 2.75
114.58 2.89
121.68 3.04
128.82 3. 18
4.0 30.0
4.2
30.2
4.4
30.4
4.6 30.6
4.8
30.8
112.00 3.21 32.0
118.02 3.33 32.2
124.08 3.46 32.4
130.18 3.59 32.6
136.32 3.71 32.8
120.00 3.25| 34.0
126.42 3.38 34.2
132.88 3.51| 34. 4|
139.38 3.64 34.6
145.92 3.77 34.8
128.00| 3.29| 36.0
134.82 3.42 36.2
141.68 3.56 36.4
148.58 3.69 36.6
155. 52 3.82 36.8
136.00 3.32
143.22 3.46
150.48 3.60
157.78 3.73
165.12 3.86
5.0
31.0
142.50 3.83 33.0
5.2
31. 2
148.72 3.95 33.2
5.4 31.4
5.6 31.6
5.8 31.8
6.0 32.0
6.2 32.2
6.4 32.4
6.6 32.6
6.8 32.8
154.98 4.07 33.4
161.28 4.19 33.6
167.62 4.30 33.8
152.50 3.89 35.0
159.12 4.02 35.2
165.78 4.14] 35. 4
162.50 3.95 37.0
169.52 4.07 37.2
172.50 3.99
179.92 4.12
176.58 4.20 37.4
187.38 4.25
172.48 4.26 35.6
179.22 4.37| 35.8|
183.68 4.32 37.6
190.82 4.44| 37.8
194.88 4.38
202.42 4.50
174.00 4.41 34.0
180.42 4.53 34.2
186.88 4.64 34.4
193.38 4.74 34.6
199.92 4.85 34.8
7.0 33.0
7.5 33.5
206.50 4.96 35.0
223.12 5.22 35.5
8.0 34.0
8.5 34.5
9.0 35.0
240.00 5.47 36.0
257.12 5.71| 36.5|
274.50 5.95 37.0
9.5 35.5 292.12 6. 18] 37.5
10.0 36.0 310.00 6.41 38.0
186.00 4.49] 36.0
192. 82 4.61 36. 2
199.68 4.72 36.4
206. 58 4.83 36.6
213.52 4.94 36.8
220.50 5.05 37.0
238.12 5.32| 37.5]
256.00 5.58 38.0
274. 12 5.83 38.5
292. 50 6.08 39.0
311.12 6.32| 39.5|
330.00 6.55 40.0
234.50 5. 14
253.12 5.41 39. 5
272.00 5.68 40.0
291. 12 5.94 40.5
310.50 6.19 41.0
330.12 6.44| 41.5|
350.00 6.68 42.0
349.12 6.56
370.00 6.81
198.00 4.56] 38.0
205.22 4.68 38. 2
212.48 4.80 38.4
219.78 4.91] 38.6|
227.12 5.02 38.8
210.00 4.62
217.62 4.74
225.28 4.86
232.98 4.98
240.72 5.10
39.0
248.50 5.21
268.12 5.50
288.00 5.77
308.12 6.04
328.50 6.30
10.5 36.5
36.5 328.12 6.63 38.5
391.12 7.05
349. 12 6.78 40.5
370. 12 6.92 42.5
86
HYDRAULIC TABLES
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T T
A
g T
A
T Τ
A
T
0.2
35.2
0.4
35. 4
0.6 35.6
0.8 35.8
7.02 0.20 40.2
14.08 .39 40.4
21.18 58 40.6
28.32 .77 40.8
8.02 0.20 45.2
16.08 .39 45.4
24. 18 .58 45.6
32.32
.77 45.8
9.02 0.20 50.2
18.08.39 50.4
27.18 .59 50.6
36.32.78 50.8|
10.02 0.20
20.08 .39
30.18 .59
40.32 .78
1.0
36.0
35.50 .95 41.0
1.2 36.2
1.4 36.4
1.6
36.6
1.8 36.8
42.72 1.13 41.2
49.98 1.31 41.4
57.28 1.48| 41.6|
64.62 1.66 41.8
40.50 .96 46.0
48.72 1.14 46. 2
56.98 1.32 46.4
65. 28 1.50 46.6
73.62 1.67 46.8
45.50 .96] 51.0]
54.72 1.15| 51.2
63.98 1.33| 51.4
73.28 1.51 51.6
82.62 1.69 51.8
50.50 .97
60.72 1.15
70.98 1.34
81.28 1.52
91.62 1.70
2.0 37.0
2.2 37.2
2.4 37.4
2.6 37.6
2.8 37.8
3.0 38.0
3.2 38.2
72.00 1.82 42.0
79.42 1.991 42.2
86.88 2.15 42. 4
94.38 2.31 42, 6
101.92 2.47 42.8
82.00 1.84 47.0
90.42 2.01 47.2
98.88 2.18 47.4
107.38 2.34 47.6
115. 92 2.51] 47. 8|
92.00 1.86 52.0
101.42 2.03 52.2
110.88 2.20 52.4
120.38 2.37 52, 6
129.92 2.53 52.8
102.00 1.87
112.42 2.05
122.88 2. 22
133.38 2.39
143.92 2.56
109.50 2.63 43.0
117.12 2.78 43.2
3.4 38.4
3.6 38.6
3.9 38.8
124.78 2.93 43.4
132.48 3.08) 43.6
140.22 3.22 43, 8
124.50 2.67 48.0
133.12 2.82 48.2
141.78 2.98 48.4
150. 48
159. 22
3.13) 48. 6]
3.281 48.81
139.50 2.70 53.0
149.12 2.86| 53.2
158.78 3.02 53.4
168. 48 3. 18 53.6
178. 22 3.33 53.8
154.50 2.72
165.12 2.89
175.78 3.05
186.48 3.21
197.22 3.37
4.0 39.0
4.2 39.2
4.4 39.4
4.6 39.6
4.8 39.8
148.00 3.37 44.0
155.82 3.51 44. 2
163.68 3.65 44.4
171.58 3.79) 44.6]
179.52 3.93 44.8
168.00 3.43 49.0
176.82 3.58 49. 2
185. 68 3.73 49.4
188.00 3.49 54.0
197.82 3.64 54. 2
208.00 3.53
218.82 3.68
207.68 3.79| 54.4
229.68 3.84
194.58 3.87 49.6
203.52 4.01 49.8
217.58 3.94 54.6
227.52 4.08 54.8
240.58 3.99
251.52 4. 14
5.0
5.2
5. 4 40.4
5.6 40.6
5.8
6.0 41.0
6. 2 41.2
6.4 41.4
6.6 41.6
6.8 41.8
40.0
187.50 4.061 45.0
40.2
195.52 4.19 45. 2
203.58 4.32 45.4
211.68 4.45 45.6
40.8
219.82 4.58 45.8
212.50 4.15 50.0
221.52 4.29 50.2
230.58 4.43 50.4
239.68 4.56 50.6
248.82 4.70 50.8)
237.50 4.23 55.0
247.52 4.37 55.2
257.58 4.51| 55.4|
267.68 4.65 55.6
277.82 4.79 55.8
262.50 4.29
273.52 4.44
284.58 4.58
295.68 4.73
306.82 4.87
228.00 4.71 46.0
236.22 4.83 46.2
244.48 4.961 46.4
252.78 5.08 46.6
261.12 5.20 46.8
258.00 4.83] 51.0
267.22 4.96 51.2
276.48 5.09 51.4
285.78 5.22 51.6|
295. 12 5.35 51.8
7.0 42.0 269.50 5.32 47.0
7.5 42.5 290.62 5.61 47.5
8.0 43.0 312.00 5.90 48.0
8.5 43.5 333.62 6. 18 48.5
9.0 44.0 355.50 6.45 49.0)
9.5 44.5
10.0 45.0
304. 50 5.47 52.0
328.12 5.78| 52.5
352.00 6.08 53.0
376. 12 6.37 53. 5
400.50 6.66 54.0
377.62 6.71 49.5
400.00 6.97 50.0
425. 12 6.94 54.5
450.00 7.22| 55.0
472.62 7. 13| 59.5|
500.00 7.42 60.0
288.00 4.93 56.0
298. 22 5.071 56. 2
308.48 5.20 56.4
318.78 5.33 56.6
329.12 5.47 56.8
339.50 5.60 57.0
365.62 5.92 57.5
392.00 6.23 58.0
418.62 6. 54 58.5
445.50 6.84 59.0
318.00 5.01
329. 22 5. 16
340.48 5.29
351.78 5.43
363. 12 5.57
374.50 5.70
403. 12 6.04
432.00 6.36
461. 12 6.68
490.50 6.99
520. 12 7.30
550.00 7.60
10.5 45.5
580.12 7.90
422.62 7.23] 50.5
527.62 7.70] 60.5.
475. 12 7.48] 55.5
HYDRAULIC TABLES
87
Table 6.-Area in
feet, T, and
in square feet, A,
A, top
top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

14.02 0.20 80.2
28.08 .40| 80.4
42.18 .59 80.6
56.32 .78 80.8
16.02 0.20 90. 2
32.08 .40 90.4
48. 18 .59 90.6
64.32.79| 90.8
80.50 .98 91.0
96.72 1. 17 91. 2
112.98 1.36 91.4
129.28 1.55 91.6
145.62 1.73 91.8
36.08 .40
54.18 .59
72.32.79
90.50 .98
108.72 1.17
126.98 1.36
145. 28 1, 55
163.62 1.74
Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T
A
T
A
дро T
A
----- ----
0.2
0.4
0.6
0.8
ER TÉ CO CO
60. 2
12.02 0.20] 70. 2
18.02 0.20
60.4
24.08
.40
70.4
60.6
60.8
36. 18
59
70. 6
48.32
.78 70.8
1.0
61.0
60.50 .97 71.0
1.2
61.2
1.4
61.4
1.6
61. 6
1.8
61.8
72.72 1.16 71.2
84.98 1.35| 71.4|
97.28 1.53 71.6
109.62 1.71 71.8
70.50 .98 81.0
84.72 1.17 81.2
98.98 1.35 81.4
113.28 1.54] 81. 6
127.62 1.72 81.8
2.0 62.0
2.2
62.2
122.00 1.89 72.0
134.42 2.07 72.2
2.4
62.4
146.88 2.25 72.4
2.6
62.6
159.38 2.42 72.6
2.8
62.8
171.92 2.59 72.8
142.00 1.91 82.0]
156.42 2.09] 82.2
170.88 2.27 82.4
185.38 2.45 82.6
199.92 2.62| 82.8|
3.0 63.0
3.2 63.2
3.4 63.4
3.6 63.6
3.8 63.8
184.50 2.77 73.0
197. 12 2.94 73.2
209.78 3.10] 73. 4
222.48 3.27 73.6
235. 22] 3.43] 73.8
4.0 64.0
248.00 3.60] 74. 0
4.2 64.2 260.82 3.76| 74. 2)
4.4 64.4 273.68 3.92 74.4
4.6 64.6 286.58 4.08| 74.6|
4.8 64.8 299.52 4. 23 74.8
274.50 2.84
293.12 3.02
311. 78
3. 19
330.48 3.37
93. 8
349.22 3.55
328.00 3. 69 94. 0
344.82 3.86 94. 2
361. 68 4.03 94.4
378. 58 4. 1994. 6
395. 52 4.36 94.8
368.00 3.72
386.82 3.89
405. 68 4.06
424. 58 4.23
443. 52 4.40
5.0 65.0 312.50 4.39 75.0
65.2 325.52| 4. 54] 75. 2]
65.4
5.2
ம்ம்மம்ம்
024∞ ∞
5.4
5.6
5.8
338.58 4.70 75.4
65.6 351.68 4.85 75.6
65.8 364.82 5.00 75.8
6.0 66.0
6.2 66.2
6.4 66.4
6.6
66.6
6.8
66.8
378.00 5.15 76.0
391.22 5.30 76. 2|
404.48 5.44 76.4
417.78 5.59 76.6
431.12 5.73 76.8
7.0
67.0
7.5 67.5
8.0 68.0
8.5 68.5
9.0 69.0
9.5 69.5
10.0 70.0
444.50 5.88 77.0|
478.12 6.23 77.5
512.00 6.57 78.0
546.12] 6.91] 78. 5
580.50 7.24| 79.0
615. 12 7.57 79.5
650.00 7.89 80.0
214. 50 2.80] 83.0
229. 12 2.97 83. 2)
229.12 2.97 83. 2
243. 78 3. 14| 83.4
258.48 3.31 83. 6
273. 22 3.48 83.8
288.00 3.65 84. 0
302.82 3.81 84. 2
317.68 3.98 84.4
332. 58 4. 14 84. 6
347.52 4.30 84.8
347.52 4.30 84.8
362.50 4.47 85.0
377.52 4.62 85.2
392. 58 4.78 85. 4
392.58 4.78 85.4
407.68 4.94 85.6
422.82 5. 10 85.8
438.00 5.25 86.0
453.22 5.40 86.2
468.48 5.56 86.4
483.78 5.71 86. 6
499. 12 5.86 86.8
514.50 6.01 87.0
553. 12 6.37 87.5
592.00 6.74 88.0
631.12 7.09 88.5
670.50 7.44 89.0
710. 12 7.78 89.5
750.00 8.12 90.0
162.00 1.92| 92.0||
178.42 2.10 92.2
194.88 2.28 92.4
211.38 2.46 92.6
227.92 2.64 92.8
244.50 2.82 93.01
261. 12 3. 00 93. 2
277.78 3.17 93.4
294.48 3.34 93.6
311. 22 3. 52
412.50 4.52 95.0
429.52) 4.69| 95.2
446, 58 4.85 95.4
446. 58 4.85 95.4
463. 68 5.01 95. 6
480.82 5. 17 95.8
96. 2
498.00 5.33 96.0
515. 22| 5. 49|
532.48 5. 65 96.4|
549.78 5.80] 96. 6
567.12 5.96 96.8
584.50 6.11 97.0
628. 12 6.49 97.5
672.00 6.86 98.0
716. 12 7.23 98.5
760.50 7.60 99.0
182.00 1.93
200.42 2.11
218.88 2.30
237.38 2.48
255.92 2.66
462. 50 4.57
481.52 4.74
500. 58 4.90
519.68 5.07
538.82 5.23
558.00 5.40
577.22 5.56
596.48 5.72
615.78 5.88
635. 12 6.04
654.50 6.19
703. 12 6.59
752.00) 6.97
801.12 7.35
850.50 7.72
805. 12 7.95 99.5
850.00 8. 30 100.0
900. 12 8.09
950.00 8.45
10.5 70.5
8.65₤100. 51, 000. 12| 8.81
685. 12 8.21 80.5
895. 12
790.12 8.45 90.5
88
HYDRAULIC TABLES
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
↑
Τ
A
T
T
A
Τ
A
T
0.2 100. 2
0.4 100. 41
0.6 100.6
20.02
0.20 110. 2
22.02 0.20 120. 2
40.08
40110.4
44.08.40 120.4
60. 18
.59 110. 6
66. 18 .59 120.6
0.8 100.8
80.32
•
1.0 101.0
100.50
1.2 101.2
1.4 101.4
1.6101.6
161.28 1.56111.6
1.8 101.8
181.62 1.75 111.8
79 110.8
.98111.0]
120.72 1.18111.2
140.98 1.37111.4
110.50
79 120.8
.98|121.0
132. 72 1. 18121. 2
132.72 1.18121.2
154.98 1.37121.4
177.28 1.56121.6)
199.62 1.75121.8
88.32
24.02 0.20₤130. 2
48.08 .40130. 4
72. 18
96.32.79 130.8
26.02 0.20
52.08
.40
.59130. 6
78.18.60
104.32 .79
120.50 .99131.0
144. 72 1. 18131.2
168.98 1.37131.4
130.50.99
156.72 1.18
182.98 1.37
193.28 1.56131. 6
209.28 1.57
217.62 1.75 131.8
235.62 1.76
2.0 102.0
2.2 102. 2
2.4102.4
2.6 102.6
2.8 102.8
3.0 103.0
3.2 103.2
202.00 1.93112.0
222.42 2.12112. 2
242.88 2.31112.4
263.38 2.49112.6
283.92 2.67 112. 8
222.00 1.94 122.0
244. 42
242.00 1.94 132.0
262.00 1.95
2. 13122.2
266.42 2.13132. 2 2|| 288.42 2.14
266. 88
289. 38
311.92 2.68 122.8
2.31 122. 4
290.88 2.32 132. 4
314.88 2.33
2.50 122.6
315.38 2.51 132. 6
341.38 2.51
339.92 2.69132.8
367.92 2.70
3.4 103.41
3.6 103.6
3.8 103.8
304.50 2.85113. 0
325.12 3.03 113. 2
345.78 3.21 113. 4
366.48 3.39113.6
387.22 3.57 113.8
334.50 2.87123.0
357.12 3.05123. 2
379.78 3.23 123.4
402.48 3.41|123.6|
425.22 3.59 123.8
364.50 2.88133.0
389.12 3.06 133. 2
413.78 3. 24|133.4
438.48 3.42 133. 6
463.22 3.60 133. 8)
394.50 2.89
421.12 3.07
4.0 104.0 408.00 3.75114.0
4.2 104.2
4.4 104.4
4.6104. 6
4.8104.8
428.82 3.92114. 2
449.68 4.09114. 4
470.58 4.27 114. 6
491.52 4.44114.8
448.00 3.77124.0
470.82 3.94 124. 2
493.68 4.12124. 4
516.58 4.29124.6
539.52 4.47 124.8
488.00 3.78|134. 0|
512.82 3.96 134. 2
537.68 4.14134. 4
562. 58 4.32 134. 6
587.52 4.49134.8]
447.78 3.25
474.48 3.44
501. 22 3.62
528.00 3.80
554.82 3.98
581.68 4.16
608.58 4.34
635.52 4.52
5.6 105.6
5.8 105.8
5.0105.0
5.2 105.2
5.4 105. 4
6.0 106.0
6.2 106. 2
6.4 106.4
6.6 106.6
6.8 106.8
512.50 4.61115.0
533. 52 4.78115. 2
554.58 4.95 115.4
575.68 5.12115. 6
596.82 5.28 115.8
618.00 5.45116. 0
639. 22 5.61 116. 2
660.48 5.78116.4
681.78 5.94116. 6
703. 12 6. 10116.8
562.50 4.64 125.0
585. 52 4.81 125. 2
608. 58 4.99125.4
631.68 5.16125. 6
654.82 5.33|125.8
678.00 5.49126. 0
701. 22 5.66 126. 2
724.48 5.83 126. 4
747.78 5.99 126.6
771. 12 6. 16 126. 8
16|126.
794.50 6.32127.0
724.50 6.26|117. 0]
778.12 6.66[117. 5|
832.00| 7.06118. 0
853. 12
7.0 107.0
7.5107.5
8.0 108.0
912.00
8.5 108.5 886.12 7.45118. 5 971. 12
9.0 109.0 940.50 7.83 119. 01, 030. 50|
9.5109.5 995. 12
10.0 110. 01, 050. 00
8. 21 119. 51, 090. 12
8. 58120. 01, 150.00
612.50 4.67135.0
637.52 4.84135. 2
662. 58 5.02135. 4
687.68 5.19|135.6
712.82 5.36 135.8
738.00 5.53136.0
763.22 5.70 136.2
788.48 5.87136.4
813. 78 6.04136.6
839.12 6.21 136.8
864.50
6.73127.5 928. 12
7.13128. 0 992.00
7.53 128. 51, 056. 12
7.92|129. 0|1, 120. 50
8. 31129. 51, 185. 12]
8.69 130. 01, 250. 00
6.37 137.0 934. 50] 6.42
6. 79 137. 51, 003. 12 6.83
6.79|137.
7.19 138. 01, 072.00 7.25
7. 60138. 51, 141. 12 7.66
8.00139. 01, 210. 50 8.06
8. 39 139. 51, 280. 12 8.46
8. 78 140. 01, 350.00 8.86
662.50 4.69
689.52 4.87
716. 58 5.04
743.68 5.22
770.82 5.39
798.00 5.56
825. 22 5.74
852. 48 5.91
879.78 6.08
907.12 6.25
10.5 110. 51, 105. 12
9. 17140. 51, 420. 129. 25
8. 95120. 51, 210. 12
95/120
9. 07130. 51, 315. 12
HYDRAULIC TABLES
89
feet, T,
T, and
Table 6.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
A
T T
A
T
T
A
про
0.2 140. 2
0.4140.4
28.02 0.20 150. 2
56.08
30.02
0.20 160. 2
.40 150. 4
60.08
.40 160.4
32.02 0.20|170. 2|
64.08
34.02 0.20
.40 170. 4
68.08 .40
0.6 140.6
84. 18.60 150, 6
90.18
60 160. 6
•
0.8 140.8
112. 32
.79 150.8
120.32
.79 160.8
96. 18 .60 170.6
128.32.79 170.8
102.18 .60
136.32 .79
1.0 141.0
1,2 141. 2
140.50]
.99 151.0
150. 50
.99 161.0
160.50 99 171.0
170.50 .99
168.72 1. 18 151. 2
180.72
1.18 161. 2
192.72 1. 18171.2
204.72 1. 19
1.4 141. 4
1.6 141. 6
1.8 141.8
196.98
225.28
253.62 1.76151, 8
1.38 151. 4
210.98
1.38 161. 4
224.98 1.38 171.4
238.98 1.38
1.57 151. 6
241.28
1.57 161. 6
257.28 1.57 171.6
273.28 1.57
271.62
1.76 161. 8
289.62 1.77 171.8
307.62 1.77
2.9 142.0
282.00 1.95152. 0
302.00
1.96 162. 0
322.00 1.96172. 0
342.00 1.96
2.2 142.2
2.4 142. 4
2.6 142.6
2.8 142.8
310.42 2.14152. 2
338.88 2.33 152. 4
367.38 2.52 152, 6
395.92 2. 71 152, 8
332.42
2.15162. 2
362.88
2.34 162.4
393.38
423.92 2.71162.8
2.52 162. 6
354.42 2.151172. 2]
386.88] 2.34 172. 4
419.38 2.53172. 6
451.92 2.72 172. 8
376.42 2. 15
410.88 2.34
445.38 2.53
479.92 2.72
3.0 143. 0
3.2 143.2
3.4143. 4
3.6143.6
3.8 143.8
424.50 2.89 153.0
453.12 3.08 153. 2
481.78 3.26153. 4)
510.48 3.45|153, 6
539.22 3.63 153.8
454.50 2.90 163.0
485. 12 3.09 163. 2
515.78 3.27|163. 4
546.48 3.46 163. 6
577.22 3.64163.8
484.50 2.91|173. 0
514.50 2.91
517. 12 3.09 173.2
549. 78 3.28 173. 4
582.48 3.47|173.6|
615.22 3.65173.8
549. 12 3.10
583.78 3.29
618.48 3.47
653. 22 3.66
4.0 144. 0
4.2 144. 2
4.4 144. 4
4.6 144. 6
4.8 144. 8
568.00 3.81154. 0
596.82
625. 68
654. 58
683.52
4.00154. 2
4.18 154. 4
4.36154. 6
700.58
4.53 154. 8
731. 52
608.00 3.83[164. 0]
638.82 4.01 164. 2
669.68 4. 19164. 4
4.37 164. 6)
4. 55164. 8
648.00 3.84 174. 0
688.00 3.84
630.82
713.68
746.58
779.52 4.57 174. 8
4.02 174. 2
722.82 4.03
4.20 174, 4
757.68 4.21
4.38 174. 6
792.58 4.40
827.52 4.58
5.0 145.0
5.2 145. 2
712.50 4.71 155. 0
741.52 4.89 155. 2
762.50
4.73 165. 0
793. 52
4.91[165. 2
812.50 4.75 175.0
845.52 4.93|175.2
862.50 4.76
897. 52 4.94
5.4 145.4
5.6145.6
770.58 5.07 155.4
824.58
5.09 165. 4
878.58
799.68 5.24 155. 6
855. 68
5.27165. 6
911.68
5.8 145.8
828.82 5. 42 155. 8
886.82 5. 44165.8
944.82
5.11|175. 4
5.28 175.6
5. 46 175. 81, 002. 82
932. 58 5. 12
967.68 5.30
5.48
6.0 146.0
6.2146.2
6.4 146.4
6.6146. 6
6.8 146.8
858.00 5.59|156. 0
887.22 5.77|156. 2
916.48 5.94156. 4
945. 78 6. 11156. 61, 011. 78
975. 12 6.28 156. 81, 043. 12
7.0147. 01, 004. 50
7.5 147. 51, 078. 12
8.0148. 01, 152. 00
8.5 148. 51, 226. 12
9.0 149. 01, 300. 50
9.5 149. 51, 375. 12
10.0 150.01, 450. 00
10.5 150. 51, 525. 12
918.00 5.62 166. 0| 978.00
949. 22 5. 78 166. 21, 011. 22
980.48 5.97 166. 41, 044. 48
6. 14166. 61, 077.78
6. 31 166. 81, 111. 12
6. 45 157. 01, 074. 50
6. 88 157. 51, 153. 12
7.30 158. 01, 232. 00
7. 71158. 51, 311. 12
8. 12₤159. 01, 390. 50
8. 53 159. 51, 470. 12
8. 93160. 01, 550.00
9. 33 160. 51, 630. 12
6.49 167. 01, 144. 50
6.91 167. 51, 228. 12
7.34168.01, 312.00
7. 76168. 51, 396. 12
8. 17169. 01, 480. 50
8. 59 169. 51, 565. 12
8.99 170. 01, 650.00
9. 40 170. 51, 735. 12
5.64|176. 01, 038.00]
5.82 176. 21, 073. 22
5.99 176. 41, 108. 48
6. 17 176. 61, 143.78
6. 34176. 81, 179. 12
5.66
5.84
6. 01
6. 19
6. 37
6. 52 177. 01, 214. 50 6.54
6.95 177. 51, 303. 12 6.98
7.38 178. 01, 392.00 7.41
7.80 178. 51, 481. 12 7.84
8. 22₤179. 0|1, 570. 50| 8. 26
8. 64179. 51, 660. 12 8. 68
9. 05180. 01, 750.00 9. 10
9. 46 180. 51, 840. 129. 51
563189
7
90
HYDRAULIC TABLES
feet, T, and
Table 6.—Area in square feet, A, top width in
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
T
A
T
0.2
180. 2
36.02
0.20
190. 2
38.02
0.20
200. 2
40.02
0.20
0.4
180.4
72.08
.40
190.4
76.08
.40
200.4
80.08
.40
0.6
180.6
108. 18
.60
190.6
114. 18
.60
200.6
120. 18
.60
0.8 180.8
144.32
.79
190.8
152.32
·
.79
200.8
160.32
.79
1.0 181.0
180.50
.99
191.0
190.50
.99 201.0
200.50
.99
1.2
181.2
216. 72
1.19
191. 2
228.72
1. 19❘ 201. 2
240.72
1.19
1.4 181.4
252.98
1.38
191.4
266.98
1.38 201.4
280.98
1.38
1.6 181.6
289. 28
1.58
191.6
305. 28
1.58 201.6
321.28
1.58
1.8 181.8
325.62
1.77 191.8
343.62
1.77 201.8
361.62
1.77
2.0 182.0
362.00
1.96 192.0
382.00
1.96
202.0
402.00
1.97
2.2 182.2
398.42
2.15 192.2
420.42
2. 16
202. 2
442.42
2. 16
2.4 182.4
434.88
2.35 192.4
458.88
2.35
202.4
482.88
2.35
2.6
182.6
471.38
2.54 192.6
497.38
2.54
202.6
523.38
2.54
2.8
182.8
507.92
2.73 192.8
535.92
2.73
202.8
563.92
2.73
3.0
183.0
544.50
2.92
193.0
574.50
2.92
203.0
604.50
2.92
3.2
183. 2
581.12
3. 11
193.2
613. 12
3. 11
203. 2
645. 12
3. 11
3.4
183. 4
617.78
3.29
193 4
651.78
3.30
203.4
685.78
3.30
3.6
183.6
654.48
3.48
193. 6
690.48
3.49
203.6
726.48
3.49
3.8
183.8
691.22
3.67
193.8
729. 22
3.67
203.8
767.22
3.68
4.0
184.0
728.00
3.85
194.0
768.00
3.86
204.0
808.00
3.87
4.2
184. 2
764.82
4.04
194.2
806.82
4.05
204. 2
848.82
4.05
4.4
184.4
801.68
4. 22
194.4
845.68
4. 23
204.4
889.68
4. 24
4.6 184.6
838.58
4. 41
194.6
884.58
4.42
204.6 930.58
4.43
4.8 184.8
875.52
4.59
194.8
923.52
4.60
204.8 971.52
4.61
5.0
185.0
912.50
4.77
195.0
962.50
4.78
205. 0 1,012.50
4.79
5.2
185. 2
949. 52
4.96
195. 2 1,001. 52
4.97
205. 21, 053. 52
4.98
5.4
185. 4
986.58
5. 14
195. 41, 040. 58
5.15
205. 41, 094. 58
5. 16
5.6
185.6 1, 023. 68
5.32
195. 61,079.68
5.33
205. 61, 135. 68
5.34
5.8 185.8 1, 060.82
5.50
195. 81, 118. 82
5.51
205.8 1, 176. 82
5.53
6.0
186. 0 1,098.00
5.68
196. 0 1, 158. 00
5.69
206.0 |1, 218. 00
5.71
6.2
186. 21, 135. 22
5.86
196. 2 1, 197. 22
5.87
206. 2 1, 259. 22
5.89
6.4
186.4 1.172.48
6.03
196. 41, 236.48
*
6.05
206.41, 300. 48
6.07
6.6
186.6 1, 209. 78
6. 21
196. 61, 275. 78
6.23
206. 61, 341.78
6. 25
6.8
186. 81, 247. 12
6.39
196. 81, 315. 12
6.41
206.8 1, 383. 12
6.43
7.0
187.01, 284.50
6.57
197.01, 354. 50
6.59
207.01, 424. 50
6.61
7.5
187. 51, 378. 12
7.00
197. 5 1, 453. 12
7.03
207. 51, 528. 12
7.03
8.0
188.01, 472.00
7.44
198.0 1, 552. 00
7.47
208.01, 632.00
7.49
8.5
188. 51, 566. 12
7.87
198. 51, 651. 12
7.90
208. 51, 736. 12
7.93
9.0
189.0 1, 660. 50
8.30
199.0 1,750.50
8.33
209.01, 840. 50
8.36
9.5
189. 5 1, 755. 12
8.72
199. 51, 850. 12
8.76
209. 51, 945. 12
8.79
}
10.0
190.0 1,850.00
9.14
200.0 1,950.00
9.18
210.0 2,050.00
9.22
10.5
9.64
190. 5 1, 945. 12
210. 52, 155. 12
9.56
9.60
200.5 2,050. 12
HYDRAULIC TABLES
91
Table 6.--Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1—Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
T
T
A
↑ T
A
T
-
T
A
18
25
26
27
28
35
37
1221 BC=== 222I* *RAKR SH*** *-**- ***** 49568
13.0
13
14.0
15.0
82.5 3.10 14.0
96.0 3.33 15.0
110.5 3.56 16.0
14 16.0
126.0 3.78] 17.0|
93.5 3.39 15.0
108.0 3.62 16.0
123.5 3.85 17.0
140.0 4.08 18.0
104. 5 3.65 16.0
120.0 3.89 17.0
136.5 4.13| 18.0|
154.0 4.36 19.0
15
17.0
142.5 4.01 18.0
16 18.0
160.0 4.24| 19.0
17
19.0
178.5 4.46 20.0
20.0
198.0 4.69 21.0
19 21.0
218.5 4.91| 22.0
157.5 4.31 19.0
176.0 4. 54 20.0
195.5 4.77 21.0
216.0 4.99 22.0
237.5 5.22] 23.0
20 22.0
240.0 5.14] 23.0
21 23.0 262.5 5.36 24.0
24.0
286.0 5.59 25.0
23 25.0
310.5 5.81 26.0
260.0 5.45 24.0
283.5 5.67 25.0
308.0 5.90 26.0
333.5 6.13 27.0
24 26.0 336.0 6.04 27.0
360.0 6.35 28.0
280.05.75 25.0
304.5 5.98 26.0
330.0 6.20 27.0
356.5 6.43| 28.0
384.0 6.66 29.0
172.5 4.59| 20.0|
192.0 4.83 21.0
212.5 5.06 22.0
234.0 5.29| 23.0
256.5 5.52 24.0
115.5 3.90
132.0 4. 15
149.5 4.39
168.0 4.63
187.5 4.86
208.05.10
229.5 5.34
252.05.57
275.5 5.80
300.0 6.03
325.5 6.26
352.0 6.50
379.5 6.73
408.0 6.95
27.0 362.5 6.26 28.0
387.5 6.58 29.0
28.0
390.0 6.49 29.0
29.0
418.5 6. 71
30.0
30.0
448.0 6.93 31.0
29 31.0 478.5 7.16 32.0
416.0 6.80 30.0
445.5 7.03| 31.0
476.0 7.26 32.0
507.5 7.48 33.0
412.5 6.89 30.0
442.0 7.11| 31.0
472.5 7.34 32.0
504. 0 7.57 33.0
536.5 7.79 34.0
437.5 7.18
468.0 7.41
499.5 7.64
532.0 7.87
565.5 8.10
30 32.0
510.0 7.38 33.0
33
32
31 33.0 542.5 7.61 34.0
34.0 576.0 7.83 35.0
610.5 8.06 36.0
34 36.0 646.0 8.28 37.0
35.0
540.0 7.71 34.0
573.5 7.93 35.0
608.08.16 36. 0
643. 58.38 37.0
680.0 8.60] 38.0
570.0 8.02| 35.0|
604.5 8.24 36.0
640.0 8.47 37.0
600.0 8.32
635.5 8.55
672.0 8.78
676.5 8.70 38.0
709.5 9.00
714.0 8.92 39.0
748.0 9.23
37.0
682.5 8.50 38.0
717.5 8.83 39.0
39.0
38
40.0
36 38.0 720.0 8.73 39.0
758.5 8.95 40.0
798.09.18 41.0
39
41.0
838.5 9.40 42.0
756.0 9.05| 40.0
795.5 9.28 41.0|
836.0 9.50 42.0
877.5 9.73 43.0
752.5 9.15 40.0
792.0 9.37 41.0
832.5 9.60 42.0
874.0 9.82 43.0
916.5 10.05 44.0
787.5 9.46
828.0 9.68
869.5 9.91
912. 0/10. 14
955. 5 10. 36
40 42.0
880.0 9.62 43.0
41
43.0
922.5 9.85 44.0
42
44.0
966.0 10. 07
43
45. 0 1,010. 510. 30
44 46.0 1,056. 010. 52||
47.0
920.0 9.95 44.0
963. 5 10. 18 45. 0
45. 01, 008.010. 40 46.0
46. 0 1,053. 5|10. 63| 47.0
1, 100. 0 10.85 48. 0|
960.0 10.27
1, 004. 5 10. 50
1,050. 010. 72
1,096. 510. 95′
1, 144. 011. 17
45. 0
1,000. 010. 59
46. 0
1,045. 510.81
47. 0
1,092.0 11. 04
48. 0|
1, 139. 511. 27
49. 0
1, 188. 0|11. 49
47
47.0 1, 102.510. 74
48.0 1,150.0 10.97
49. 01, 198. 511. 19
48.0
49. 0
50.0
50.0 1,248.011. 41 51.0
51.0 1,298. 511. 64 52.0
1, 147. 511. 07
1, 196. 0 11.30
1, 245. 511, 52 51.0
1, 296. 011. 75
1,347.5 11.97
49.0
50.0
52.0
53.0
1, 192, 511. 40
1, 242. 011. 62
1, 292.511.85
1,344. 012. 07
1, 396. 512.30
50.0
1, 237. 511. 72
51.0 1,288.0 11.94
52.0
1, 339. 512. 17
53.0 1, 392. 012. 39
54. 01, 445. 512. 62
50
55.0 1,500. 012. 84
52.0 1,350. 011. 86
1, 450.012. 52
53. 0
54.0
1,400. 012. 19|
92
HYDRAULIC TABLES
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
Τ
A
↑ T
A
↑ T
A
T
11
17.0
12
18.0
126.5 4.13 18.0
144.0 4.39 19.0
137.5 4.35 19.0
156.0 4.61 20.0
13 19.0
14 20.0
162.5 4.63 20.0
182.0 4.88 21.0
175.5 4.87 21.0
196.0 5.12 22.0
148.5 4.56| 20.0|
168.0 4.82 21.0
188.5 5.09 22.0
210.0 5.34 23.0
159.5 4.75
180.0 5.02
201.5 5.29
224.0 5.56
15 21.0
16 22.0
17
23.0
18
24.0
19 25.0
202.55.12 22.0
224.0 5.36| 23.0
246.5 5.60 24.0
270.0 5.84 25.0
294.5 6.07 26.0
217.5 5.36 23.0
240.0 5.61 24.0
263.5 5.85 25.0
288.0 6. 10] 26. 0
313.5 6.34] 27.0
232.5 5.60 24.0
256.0 5.85 25.0
280.5 6.10] 26.0
306.0 6.34 27.0
332.5 6.59 28.0
247.5 5.82
272.0 6.07
297.5 6.33
324.0 6.58
351.5 6.83
20 26.0
320.0 6.31 27.0
N222
21
27.0
346.5 6.54 28.0
22
28.0
374.0 6.78 29.0
23 29.0
402.5 7.01 30.0
24 30.0 432.0 7.24 31.0
340.0 6.57 28.0
367.5 6.81 29.0
396.0 7.05 30.0
425.5 7.28 31.0
456.0 7.52 32.0
360.0 6.83 29.0
388.5 7.07 30.0
418.0 7.31| 31.0
448.5 7.55) 32.0|
480.0 7.78 33.0
380.0 7.07
409.5 7.32
440.0 7.56
471.5 7.80
504, 08.04
25
26
27
KREAR AH08* *808
31.0 462.5 7.47 32.0
487.5 7.75 33.0
32.0
494.0 7.70 33.0
520.0 7.98 34.0
512.5 8.02 34.0
546.0 8.26 35.0
537.5 8.28
572.0 8.52
28
34.0
33.0 526.5 7.93 34.0
560.0 8.16 35.0
553.5 8.22 35.0
580.5 8.49 36.0
607.5 8.76
588.0 8.45 36.0
29 35.0
594.5 8.39 36.0
623.5 8.68 37.0
616.0 8.72 37.0
652.5 8.96 38.0
644.0 8.99
681.5 9.23
30 36.0 630.0 8.62 37.0
31 37.0
660.0 8.91 38.0
690.0 9.19| 39.0
666.5 8.85 38.0
697.5 9.14 39.0
32 | 38.0
33
704.09.08 39.0
39.0
742.5 9.31 40.0
736.0 9.37 40.0
775.5 9.60 41.0
34 40.0 782.0 9.53 41.0
816.0 9.83 42.0
728.5 9.42] 40.0
768.0 9.65 41.0
808.5 9.89 42.0
850.0 10. 12 43.0
720.0 9.46
759.5 9.70
800.0 9.93
841.5 10. 16
884.0 10. 40
37
43.0
38
44.0
39 45. 0
35 41.0 822.5 9.76 42.0
36 42.0 864.0 9.99 43.0
906.5 10. 22| 44.0]
950.0 10. 44 45.0
994. 510. 67 46.0
857.5 10.06 43.0
900.0 10.29| 44.0|
943. 510. 51| 45.0
988. 010. 74 46. 0
1,033. 510.97 47.0
892.5 10.35 44.0
936.0 10. 58
980.5 10.81
927.5 10. 63
45.0
972. 0 10.86
46. 0
1,017. 511. 09
1, 026. 011. 04
1,072. 5 11. 26
47.0
1,064. 011, 32
48.0
1, 111. 511. 55
40 46.0 1,040.0 10.90
47.0
42
43
44
41 47.0 1,086. 511. 12
48.0 1, 134. 011.35
49.0 1, 182. 511. 58
50.0 1,232.011.80
51.0
47
48
1,080.011. 20 1, 120. 011. 49
48.0 1, 127. 511. 43 49.0 1, 168. 5 11. 72
49.0 1, 176. 011. 65 50.0 1, 218. 0 11. 95
50.0 1, 225. 511.88 51.0 1, 268.5 12. 18
1, 276. 0/12. 11| 52.0] 1, 320.0|12. 41
45 51.0 1,282. 5 12. 03 52.0 1,327. 512. 33
46 52.0 1,334.0 12. 25 53.0 1, 380.0 12. 56
53.0 1,386. 512.48 54.0 1, 433. 512. 79]
54. 0 1,440.012.71 55.0 1, 488. 013. 01
49 55.0 1, 494. 512. 93 56.0 1, 543. 513. 24
48. 0
49. 0
1, 160. 011. 78
50.0
1, 209. 5 12. 01
51.0
1, 260. 0 12. 24
•
52.0
1, 311.5 12. 47
53. 0
1,364. 0|12. 70
53.0
54. 0
55.0
56. 0
57.0
1,372.5 12. 64
1, 426. 012. 86
1,480. 513.09
1, 536.0 13.32
1, 592. 513. 55
54. 0
55. 0
1, 417. 5 12. 93
1, 472. 0 13. 16
56. 01, 527. 513. 39
57.0
1, 584. 0 13. 62
58.0 1,641. 513. 84
50
59.0 1, 700. 014.07
56. 01, 550. 013. 16
58. 0 1, 650.0 13.77
57.0 1, 600.0 13.47
HYDRAULIC TABLES
93
Table 6.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued
T, and

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T T
A
r
T
Α
T T
A
T
11 21.0
12
13
22.0
23.0
14 24.0
170.5 4.93 23.0
192.0 5. 21 24.0
214.5 5.49 25.0
238.0 5. 76 26.0
192.5 5.26 25.0
216.0 5.56 26. 0
240.5 5.86 27.0
266.0 6. 14 28.0
214.5 5.56| 27.0Į
240.0 5.88 28.0
266.5 6.19 29.0
294.0 6.49 30.0
236.5 5.83
264.0 6. 16
292.5 6.49
322.0 6.81
15
25.0
262.5 6.03 27.0
16
26.0
288.0 6.29 28. 0
292.5 6.42 29.0
320.0 6.70 30. 0
322.5 6.78 31.0
352.5 7.12
352.0 7.07] 32.0
384.0 7.42
17
27.0
314.5 6.55 29.0
348.5 6.97 31.0
382.5 7.35| 33.0|
416.5 7.71
18
28.0
342.0 6.81 30. 0
378.0 7.23 32.0
414.0 7.63 34. 0
450.0 8.00
19
29.0
370.5 7.06 31.0
408.5 7.50 33. 0
446.5 7.90 35.0
484.5 8.28
20
30.0
400.0 7.31 32.0
440.0 7.76 34.0
480.0 8.17 36. 0
520.0 8.56
21 31.0
22 32.0
23 33.0
430.5 7.56 33.0
462.0 7.80 34.0
494.5 8.05 35.0
472.5 8.01 35.0
514.5 8.44 37.0
556.5 8.84
506. 0 8.27 36.0
550.0 8.70 38. 0
594.0 9.11
540.5 8.52 37.0
586.5 8.96 39.0
632.5 9.38
24
34.0
528.0 8.29] 36.0
576.0 8.77 38.0
624.0 9.22 40.0
672.0 9.65
25
35.0
562.5 8.54 37.0
26 36.0
598.0 8.78 38.0
27 37.0
28 38.0
29 39.0
634.5 9.02 39.0
672.0 9.25] 40.0|
710.5 9.49 41.0
612.5 9.02 39.0
650.0 9.27| 40.0
688.5 9.51 41.0
728.0 9.76 42.0
768.510.00). 43. 0
662.5 9.48 41.0
702.0 9.73 42.0
742.5 9.98 43.0
784. 010. 23] 44.0]
826.510.48 45.0
712.5 9.91
754. 010. 17
796.5 10.43
840.0 10.69
884.5 10.94
30 40.0
31 41.0
32
42.0
750.0 9.73 42.0
790.5 9.97 43.0
832. 010. 20
810. 010. 24
852. 510. 48
44.0
45.0
44. 0
896.0 10.72)
46.0
870.0 10.73 46. 0
914.5 10.98 47. 0
960. 0 11. 22
930.0 11. 19
976. 511.45
48. 0
1, 024. 011. 70
33
43.0
874.5 10. 44
45.0
940. 5 10. 96
47.0
34
44. 0
918.0 10.67|
46.0
986. 011. 20
48. 0
1, 006. 5 11. 46
1, 054. 011. 71
49. 0
1, 072. 5 11. 94
50. 0
1, 122. 0 12. 19
35
45.0
962.5 10. 90
47.0
36
46. 0
37
38
1,008. 011. 14 48.0
47.0 1,054. 5 11. 37 49. 0
48.0 1, 102. 0|11.60|| 50.0
49.0 1, 150.511.84 51.0
39
40 50.0 1,200. 012. 07
41 51.0 1,250. 5 12. 30
42 52. 0 1, 302. 012. 53
43 53.0 1,354. 5 12. 76
44 54.0 1, 408. 0|12.99
52. 0 1, 280. 012. 62
53.0 1, 332. 5 12. 85
54. 0 1, 386. 013. 09
55. 01, 440. 513. 32
1, 496. 0 13. 55
1,032. 511. 44
1,080. 011. 68 50.0 1, 152. 0 12. 19
1, 128. 511. 91 51.0 1, 202. 5 12. 43
1, 178. 012. 15 52. 0 1, 254. 0 12. 67
1, 228. 512. 38 53. 0 1, 306. 512. 91
49. 0
1, 102. 511.95
51. 0
1, 172. 512. 44
52. 0
1, 224. 012. 68
53.0
1, 276. 5 12. 93
54. 0
1, 330. 013. 17
55. 0
01,
1, 384. 5 13. 41
56. 0
57.0
56. 0
58. 0
54. 0 1, 360. 013. 15
55. 01, 414.5 13. 38
1,470. 0|13. 62|
1,526. 5 13. 86
1, 584. 014. 09
56. 0 1,440.0 13. 66
57.0 1, 496. 5 13. 90
58. 0| 1, 554. 0|14. 14
59. 01, 612. 514. 38
60. 0
1, 672. 0 14. 62
45
46
55.0 1, 462.5 13. 22
56.0 1, 518. 0 13. 45
47 57.0 1, 574. 513. 68
57.0
58. 0
59.0
48
49
58. 0 1, 632. 013. 91
59.0 1,690. 514. 14
60. 0
61. 0
1, 552. 5 13. 78
1, 610. 014. 02
1, 668. 5 14. 25
1,728. 0 14. 48
1, 788. 514. 71
59.0]
60.0
61.0
1, 642. 5|14. 33|
1, 702. 014. 56
1,762. 514. 80
61. 0
1,732. 5 14. 86
62.0
1, 794. 015. 09
63. 0
1, 856. 5 15. 33
62.0
63. 0
1,824. 015. 03
1,886. 5 15. 27
64. 0
1,920. 0 15. 57
65. 0
1, 984. 5 15. 80
015. 50
66. 02, 050. 0 16. 04
60. 0 1,750. 014. 37
.
62. 0
0/151,850. 014. 94
50
64. 0
1,950. 94
HYDRAULIC TABLES
Table 6.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
А
T
T
A
r
ངོ་
Τ
A
gr T
A
23
31
IRRI HO**2 822** **RAR A~~*~* ***** ***** ***** 8
11
29.0
258.5 6.07 31.0
12
30.0
288.0 6.42 32.0
280.5 6.29 33.0
312.0 6.66 34.0
13
31.0
318.5 6.77 33.0
14 32.0
350.0 7.10 34.0
344.5 7.02 35.0
378.0 7.37 36.0
302.5 6.49 35.0
336.0 6.88 36.0
370.5 7.25 37.0
406.0 7.62 38.0
324.5 6.68
360.0 7.08
396.5 7.47
434.0 7.85
15 33.0
382.5 7.42 35.0
16 34.0
416.0 7.74 36.0
17 35.0
450.5 8.04 37.0
412.5 7.70 37.0
448.0 8.03 38.0
484.5 8.35 39.0
18
36.0
486.0 8.34 38.0
522.0 8.66 40.0
19
37.0
522.5 8.64 39.0
560.5 8.97 41.0
442.5 7.97] 39.0]
480.0 8.31 40.0
518.5 8.64 41.0
558.0 8.96 42.0
598.5 9.28 43.0
472.5 8.21
512.0 8.57
552.5 8.91
594.0 9.25
636.5 9.57
20 38.0
560.0 8.93 40.0
600.0 9.27 42.0
21 39.0
598.5 9.21 41.0|
640.5 9.57 43.0
24 42.0
40.0 638.0 9.49 42.0
41.0 678.5 9.77| 43.0
720.010.05 44.0
682.0 9.86 44.0
640.0 9.59 44.0
682.5 9.90 45.0
726.0 10.20 46.0|
680.0 9.90
724.5 10. 21
770.0 10.52
724.5 10. 14
768.0 10.43
45.0
46.0
770.5 10.49 47.0
816.5 10.82
816.0 10.78
48.0
864.0 11. 12
25
43.0
762.5 10.32 45.0
812.5 10.70
47.0
862.5 11.07
49.0
912.5 11. 42
26
44.0
806.0 10.59 46.0
858.0 10.98
48.0
910.011.36 50.0
962.0 11.71
27 45.0
850.5 10.85 47.0
904.5 11, 25
49.0
958.5 11.64
51.0
1,012. 512.00
28 46.0
896.011, 12] 48.0
952.0 11.52
29 47.0
942.5 11.38 49.0
1,000. 511. 79
50.0
51.0
1, 008.011.91
52.0
1,064.0 12. 28
1,058. 5 12. 19
53.0
1, 116.5 12. 57
30 48.0
990.0 11.64
49.0 1,038. 511.89
32 50.0 1,088.012. 15
33
51.0 1, 138. 512.40
53.0
34
52.0 1,190.0 12.66
54.0
50.0 1,050.012.06
51.0 1, 100. 5 12. 32
52.0 1, 152. 012. 58
1,204. 512.84
1, 258.0 13. 10
52.0
53.0
54.0
1, 110. 012. 46
1, 162.5 12. 73
1,216.0 13.00
54.0
1, 170.0 12.85
55.0
1, 224. 5 13. 12
56.0
1, 280.0 13. 40
55.0
56.0
1, 270.5 13. 26
1,326. 0 13. 53
57.0
1, 336. 5 13. 67
58.0
1, 394. 0 13. 94
35
53.0 1,242.5 12.91
55.0
1,312. 513. 36
57.0
1, 382.5 13. 79
59.0
1, 452. 514. 20
36
54.0 1,296.0 13. 16
56.0
1, 368. 0 13. 61
58.0
1, 440.0 14.05
60.0
1, 512. 014. 47
}
37
55.0 1,350. 513. 41
57.0
38
56.0 1,406.0 13. 65
58.0
39
57.0 1, 462.5 13.90
59.0
1, 424. 5 13. 87
1, 482. 0 14. 12
1,540. 514.37
59.0
1, 498. 514. 31
61.0
1,572. 5 14. 73
60.0
61.0
1, 558. 0 14. 56
1,618. 514. 82
62.0
1, 634. 0 14.99
63.0
1,696. 5|15. 26
40 58.0 1,520.014. 15
60.0
41
42
43
44
1,600.0|14. 62|| 62.0
59.0 1,578. 514.39 61.0 1,660.514.87 63.0
60.0 1,638.0 14.64 62.0 1, 722. 0 15. 12 64. 0
61.0 1,698. 5 14.88 63.0
62.0 1,760.0 15. 12
1,680.0 15.08
64.0
1,760.0 15.51
1,742. 515. 33
65.0
1,824. 5 15.77
1, 806.0 15.58
66.0
1,890. 0 16.03
64.0
1,784. 5 15. 36
1,848. 0 15. 61
65.0
1,870. 5 15. 83
67.0
1, 956, 516. 28
66.0
1,936.0 16.08
68.0
2, 024. 0 16. 54
45
46
47
63.0 1,822. 515. 36
64.0 1,886.0 15.60 66.0
65.0 1,950. 515.85 67.0
65.0
1,912. 5 15. 86
515.86
1,978.0 16. 10
2,044. 516.34
67.0
68.0
69.0
49
48 66.0 2,016.0 16.09 68.0
67.0 2,082.5 16. 32
69.0
2, 112. 016. 59
2, 180. 5 16. 83
16.33
2,070. 016.58
2, 138. 516.83
70.0 2, 208.017.07
71.0 2, 278. 517.32
2,002. 5 16. 33
69.0
2,092. 5 16. 79
70.0 2, 162. 0 17.04
71.0
2,232. 517. 29
72.0
2, 304. 017. 54
73.0
2,376. 5 17. 79
50
68.0 2, 150.0 16.56
70.0 2, 250.017.07 72.0 2,350.0 17.56
74.0
2, 450.0 18. 04
018.
HYDRAULIC TABLES
95
Table 6.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued
T, and

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T T
A
T
T
A
T T
A
11
37.0
12
38.0
346.5 6.85 39.0
384.0 7.27 40.0
13
39.0
422.5 7.67 41.0
14
40.0
462.0 8.06 42.0
368.5 7.01 41. 0
408.0 7.44 42.0
448.5 7.86 43.0
490.0 8.26| 44.0|
15
41.0
16
42.0
17 43.0
18
44.0
19 45.0
502.5 8.44 43.0
544.0 8.81 44.0
586.5 9.16 45.0
630.0 9.51 46.0
674.5 9.85 47.0
532.5 8.65 45.0
576.09.03 46.0
620.5 9.40 47.0
666.0 9.76 48. 0
712.5 10. 11
390.57.15 43.0
432.0 7.60 44.0
474.5 8.03| 45.0
518.0 8.45 46.0
562.5 8.85 47.0
412.5 7.29
456.0 7.75
500.5 8.20
546.0 8.62
592.5 9.04
608.0 9.24 48.0
640.0 9.44
654.5 9.62 49.0
688.5 9.83
49.0
702.0 9.99 50.0
750.5 10.35
738.0 10. 21
51.0
788.5 10.59
20 46.0
720.0 10. 18
48.0
760.0 10.45
50.0
21 47.0
766. 510. 51
49.0
808. 510. 79
51.0
800. 010. 71
850.511.05 53.0
52.0
840.0 10.95
892. 511.30
22
48.0
814.0 10.83
50.0
858.0 11. 11
52.0
23
49.0
862.511. 14
51.0
908. 511.44
53.0
24 50.0
912.0 11.45
52.0
960. 011. 76
54.0
902.011.39] 54.0
954. 511.72
1, 008.012.05
55.0
946.0 11.65
1,000. 511.99
56.0 1,056.0 12. 33
HORAR AS**
25
51.0
962. 511.75
53. 0
1,012. 512. 07
55. 0
1,062. 512. 37
57.0
1, 112. 5 12. 66
26
27
52. 0 1,014.012.05 54.0
53.0 1,066. 512. 35
55.0
28
54.0 1,120.012. 64
56.0
29
55.01, 174. 512.93
57.0
1,066. 012. 38
1, 120. 5 12. 68
1, 176. 012. 98
1, 232. 5|13. 27
56.0
59.0
1, 118. 012. 68
57.0 1, 174. 513.00
58.0 1,232.013. 30
1, 290. 513.61
58.0
1, 170.0 12.98
59.0
1, 228. 513. 30
60.0
1, 288. 0|13. 61
61.0
1,348. 5 13. 92
30
56.0 1, 230.0 13. 21
58. 0
31
32
57.0 1,286.5 13. 50
58.0 1,344. 013. 78
59.0
33
59.0 1,402, 514.05
34
60.0 1, 462.014. 33||
1, 290. 013. 57 60.0
1, 348. 513. 86 61.0
60. 0 1, 408. 014. 14 62.0
61.0 1, 468. 514. 43 63.0
62. 0|| 1, 530. 014. 71 64. 0
1,350.0 13. 91
62.0
1, 410. 014. 23
1, 410. 514. 20
1, 472. 0 14. 49
1, 534. 514. 78
1, 598. 015.07
63. 0
1, 472. 514. 53
64.0
1, 536. 014. 83
?
65.0
1,600. 515. 13
66.0
1,666. 015. 42
38
45
46
49
*** **** ***** 8
35
61.0 1, 522.5 14.60
36
37
39
62.0 1, 584. 014. 87
63.0 1,646. 515. 14
64.0 1,710.015. 41
65.01, 774. 515.67
64.0
65.0||
66. 0
67.0
63.0 1, 592. 514. 99 65.0
1, 656. 0 15. 26 66. 0
1, 720. 5 15. 54 67.0
1,786. 015. 81 68.0
1,852. 5 16. 08
1, 662. 515. 36
1,728.015. 64
67.0
1,732. 5 15. 71
68.0
1, 800. 0 16. 00
1,794. 515. 92
69.0
1,868. 5 16. 29
1,862. 0 16. 20
70.0
1, 938. 0 16. 57
69.0
1,930. 516. 47
71.0
2,008. 5 16.85
40 66.0 1,840.0 15.94
68. 0
42
43
41 67.0 1,906. 516. 20
68.0 1,974. 016. 46
69.0 2,042. 516.72
44 70.0 2, 112.0 16. 98
69. 0
70.0
71.0
1,920. 0 16. 35
1, 988. 516. 62 71.0 2, 070. 517.02
2,058. 0 16. 88 72.0 2, 142. 0 17. 29
2, 128. 517. 14| 73. 0| 2, 214. 517. 55
72. 02, 200.0 17.41 2,288. 017.82
70.0
2,000.0 16. 74
72.0 2,080.017. 13
73.0
2, 152. 5 17.40
74.0
2, 226. 0 17.68
75. 0|
2, 300. 5|17. 95
74.0
76.0
2, 376. 0 18. 22
47
71.02, 182.517. 24
72.0 2, 254.0 17.49
73.0 2,326. 517.75
48 74.0 2,400. 018. 00 76.0
75.0 2,474. 518. 25 77.0
74.0
75.0
73.0 2, 272. 517.67 75.0
2, 346. 017. 93 76.0
2, 420. 518. 1977.0
2, 496. 018. 44 78.0
2, 572. 518. 70 79.0
2,362. 518. 09
2, 438. 018. 35
2, 514. 518. 61
2, 592. 0 18. 87
2,670. 519. 13
77.0
2,452. 518. 49
78.0
2, 530. 018. 76
79.0
2, 608. 519. 03
80.0
2,688. 0 19. 29
81.0
2, 768. 519. 56
50
76.0 2,550.0 18. 50
78.0 2, 650.0 18. 96
80.0
2,750. 019. 39
82.0 2,850.0 19.82
96
HYDRAULIC TABLES
T, and
Table 6.-
6.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth


Τ
A
T
A
T T
A
T
T
A
T
19
FR21 10===
11
46.0
445.5 7.48 51.0
47.0
492.0 7.96 52.0
500.5 7.75 56.0
552.0 8.26| 57.0|
13
48.0
539.5 8.42 53.0
14
49.0
588.0 8.87 54.0
604.5 8.75 58.0
658.0 9.23] 59.0
555.5 7.98) 61.0
612.0 8.52 62.0
669.5 9.04| 63.0]
728.0 9.54 64.0
610.5 8.18
672.0 8.75
734.5 9.29
798.0 9.81
15
50.0
637.5 9.30 55.0
712.5 9.69 60.0
787.5 10.03 65.0
16
51.0
688.0 9.72| 56.0
17
52.0
18
53.0
54.0
739.5 10. 13 57.0
792.0 10.53 58.0
845.5 10.91 59.0
768.0 10. 13 61.0
824.5 10.57| 62.0
882.0 10.99 63.0|
940. 5 11. 40 64.0
848.0 10.50 66.0
862.5 10.32
928.0 10.82
909.5 10.96 67.0
994.5 11.30
972.0 11.40
1,035. 511.84
68.0
1,062.0 11.77
69.0
1, 130. 5 12. 22
20
55.0
900.0 11.29
60.0
1,000.0 11.80
25
26
223* **NAR A-*-* ---** ***** ****
24
21 56.0 955. 511,66
57.0 1,012.012.02 62.0
58.0 1,069.5 12. 37
59.0 1, 128.0 12.72
61.0
1,060.512. 20
1,122. 0 12.58
63.0
1, 184. 512.96
65.0 1, 100.0 12. 26
66.0 1, 165. 5 12. 67
67.01.232.0 13.08
68.0 1,299. 5 13. 48
70.0
1,200.0 12. 67
71.0
1,270. 513. 10
72.0
1,342.0 13. 53
73.01, 414. 5 13. 95
64.0
1, 248.0 13. 32
69.0 1, 368.0 13.87
74.0
1,488. 0|14. 35
60.0 1,187.5 13.06
65.0
27
29
61.0 1,248.0 13. 40
62.01, 309. 5 13.73
28 63.0 1,372.0 14.06
64.0 1,435. 514. 38
66.0
67.0
68.0
69.0
1,312. 513.69
1, 378. 014.04
1, 444. 514. 39
1, 512.014. 74
1,580. 5 15.07
70.0
1, 437.5 14. 25
75.0
1, 562. 5 14. 75
71.0
72.0
73.0
74.0
1, 508.014. 62
1, 579. 5 14. 99
1,652.015. 35
1,725. 515.71
76.0
1,638. 0 15. 15
77.0
1, 714. 5 15. 53
78.0
1, 792. 0 15. 91
79.0
1,870. 516. 29
31
32
33
34
30 65.0 1,500.014. 69
66.01, 565. 515.01
67.0 1,632.0 15.32
68.0 1,699.5 15. 62
69.0 1,768.015. 92
70.0
1,650.0 15.41
75.0
1,800.0 16.06
80.0
1,950.0 16. 65
71.0
72.0
73.0
1, 720. 5 15. 74
1,792.0 16.06
1,864. 5 16. 39
74.01, 938. 016. 70
76.0
1,875.5 16.41
81.0
2,030. 5 17. 02
77.0
1, 952. 016. 75
82.0
2, 112.017. 37
78.0
79.0
2, 029. 5 17.08
2, 108.017. 42
83.0
2, 194. 517. 73
84.0
2, 278.0 18. 08
36
37
35 70.0 1,837.5 16. 22
71.0 1,908. 0 16. 52
72.0 1,979.5 16.81
75.0
76.0
2,012. 517.02
2,088.0 17.33
80.0
81.0
77.0
38
73.0 2,052.017. 10|
78.0
39
74.0 2, 125.517.39
2, 164. 517. 64
2, 242. 0 17. 94
79.0 2, 320. 5|18. 24|
82.0
83.0
84.0
2,187.5 17.75
2, 268. 0|18.07|
2, 349. 518.39
2, 432. 018. 71
2, 515. 519.03|
85.0
2, 362. 5|18. 42
86,0|
2, 448. 0|18. 76
87.0
2, 534. 5 19. 09
88.0 2, 622. 0 19.43
89.0||2, 710.519. 75
40 75.0 2,200.0 17.68
80.0 2, 400.0 18. 54|
85.0
2, 600.0 19.34
90.0 2,800.0 20.08
41
42
43
44
78.0 2, 429.5 18. 52 83.0
18.52]
79.0 2,508.018. 80 84.0
76.0 2,275.517.96 81.0 2, 480. 518. 84
77.0 2, 352.0 18. 24 82.0 2, 562. 019. 13
2, 644. 519. 42
2, 728. 019. 71
86.0
87.0
88.0
89.0
2, 685. 519. 65
2, 772.0 19.95
2,859.5 20. 26
2, 948.0 20. 56
91.0 2,890. 520.40
92.0
2, 982. 020. 72
93.0
3,074. 521. 04
94.0
3, 168. 021. 35
45
47
49
80.0 2,587.5 19.08 85.0 2, 812. 520.00
2,587.5|19.08|
46 81.0 2,668.0 19.35 86.0 2, 898. 020. 29
82.0 2, 749. 519.63 87.0 2,984. 5 20. 57
48 83.0 2,832.0 19.90 88.0 3,072.0 20.85
84.0 2, 915. 520. 17
90.0
3,037.5 20.86
95.0
3, 262. 521.66
91.0
92.0
93.0
89.0 3, 160. 521. 13
94.0
3, 128. 021.16
3, 219. 521.45
3, 312. 021. 74
3, 405. 522. 03
96.0 3, 358.0 21.97
97.0
3, 454. 5 22. 27
98.0
3, 552.0 22. 58
99.0
3, 650. 5/22. 88
50 85.0 3,000.0 20. 44
3,750.0 23. 18
90.0 3, 250.0 21. 41
3, 500.0 22. 32 100.0
95.0
HYDRAULIC TABLES
97
in feet,
Ꭲ,
T, and
Table 6.-Area in square feet, A, top width in
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
ལྔ།
T
A
T
A
T
A
T
Τ
A
11 71.0
12
72.0
720.5 8.52 81.0
792.0 9.12 82.0
13
73. 0
864.5 9.71 83.0
14
74.0
938. 0|10. 27| 84. 0
830.5 8.78 91.0 940.5 8.99 101. 0 1,050.5 9.17
912.0 9.42 92.0 1,032. 0 9.66 102. 0 1, 152.0 9.86
994. 510. 04 93. 0 1, 124. 510. 31 103. 01, 254. 510. 54
1,078. 010. 64 94. 0 1, 218. 0 10. 94104. 0 1,358. 011. 19
20
22
2010- 2***
15 75.0 1,012. 510.82
85.0
95. 0
16
76.0 1,088. 011. 36
86. 0
96.0
17
77.0 1, 164. 511.88
87.0
18
78.0 1, 242. 012. 39
88. 0
19
79.0 1,320. 512. 88
89. 0
80.0 1,400. 013. 37
90. 0
21
22
23
24
81.0 1,480. 513. 84
82.0 1,562. 014. 30||
83.0 1,644. 514. 76
84.0 1,728.015. 20
91. 0
92. 0
93. 0
94. 0
1, 162. 511. 23
1, 248. 011. 80
1,334. 512. 35 97.0
1, 422. 012. 90 98.0
1, 510. 513. 43 99.0
1, 600. 013. 95 100. 0 1,800. 014. 43110. 0
1, 690. 5 14. 45101. 0 1,900. 514. 97111.0
1, 782. 014. 95 102. 02, 002. 015. 50112. 0
1,874. 5 15. 44103. 0 2, 104. 5|16. 01|113. 0|
1, 968. 015. 91104. 02, 208. 0 16. 52 114. 0
1, 312. 511. 56 105. 0
1, 408. 0 12. 16 106. 0
1, 504. 512. 75107. 0
1, 602. 0 13. 32108. 0
1,700. 513. 88 109. 0
1, 462. 5│11. 84
1, 568. 012. 47
1, 674. 5 13. 08
1,782.0 13. 68
1,890. 514. 27
2,000.0 14.85
2, 110. 515. 41
2, 222. 015. 96
2, 334. 5|16. 51
2, 448. 017. 04
95. 0
96. 0
27
2,062. 5 16. 38 105. 0
2, 158. 016. 84 106. 0
2, 254. 517. 29 107. 0
2, 352. 017. 74108. 0
2, 450. 518. 17 109. 0
25 85.0 1,812. 515. 64
26 86.0 1,898. 016. 07
87.0 1,984. 516. 49 97.0
28 88.0 2,072. 016. 90 98.0
29 89.0 2, 160. 517. 31 99. 0
90.0 2, 250.017. 71|100.0||
91.0 2,340. 5 18. 10 101. 0
92.0 2, 432. 018. 49102. 0
93.0 2,524. 518. 87 103. 0
94.0 2,618.019. 25 104. 0
30
31
32
33
34
35
37
95.0 2, 712.5|19. 62|105. 0|
36 96.0 2,808. 019. 99106. 0
97.0 2, 904. 5|20. 35|107. 0|
98.0 3, 002. 020. 71|108. 0
99.0 3,100. 521. 06109. 0
38
39
40 100.0 3, 200. 021. 41 110. 0
41101.0 3, 300. 5|21. 76|111. 0
42 |102. 0 3, 402. 0|22. 10|112. 0]
43 103. 03, 504. 5|22. 44|113. 0|
44 104. 0 3,608. 0|22. 78|114. 0
45 105. 0 3,712. 523. 11|115. 0
46 106.03, 818. 023. 44116. 0
47 107. 0 3, 924. 5 23. 77 117. 0
48 108. 0 4, 032. 024. 10|118. 0
49 109. 0 4, 140. 5 24. 42119. 0
2, 550. 018. 60110.0|
2, 650. 519. 02111. 0
2, 752. 019. 44112. 0
2, 854. 519. 85113. 0
2,958. 020. 26 114. 0
2, 312, 517. 02115. 0
2, 418. 0 17. 50 116. 0
2, 524. 5 17. 98 117. 0
2, 632. 0 18. 46 118. 0
2, 740. 518. 92119. 0
|2, 850. 019. 38120. 0
2, 960. 519. 83 121. 0
3, 072, 020. 27|122. 0
3, 184. 520. 71 123. 0
3, 298. 021. 14124. 0
3, 412. 5|21. 56|125. 0|
3,062. 5|20. 66|115. 0|
3, 168. 021. 05116. 0] 3, 52S. 021. 98126. 0]
3, 274. 5|21. 44 117. 0|||3, 644. 522. 40₤127. 0
3, 382. 0|21. 82|118. 0 3, 762. 022. 80|128. 0
3, 490. 5 22. 20₤119. 0 3, 880. 523. 21|129. 0
3, 600. 0 22. 58 120. 0
3,710. 522. 95121. 0
3, 822. 0|23. 32|122. 0|
3, 934. 5|23.68|123. 0
4, 048. 024. 04₤124. 0
0
4, 162. 524. 40|125. 0|
4, 278. 024. 75126. 0
4, 394. 525. 10 127.
4, 512. 025. 44 128. 0
4, 630. 5|25. 79|129. 0|
4, 000. 023. 61 130. 0
4, 120. 524. 00131. 0
4, 242. 0|24. 39132. 0
4, 364. 5|24. 78|133. 0
4, 488. 0|25. 16|134. 0
2, 562. 5 17. 56
2, 678. 018. 08
2, 794. 518. 58
2, 912. 019. 08
3, 030. 519. 57
3, 150. 0|20. 05
3, 270.520.53
3, 392. 021.00
3, 514. 521. 46
3, 638. 021. 91
3, 762. 5|22. 36
3, 888. 022. 80
4, 014. 5|23. 24
4, 142. 023. 67
4, 270. 5 24. 10
4, 400.0 24. 52
4, 530. 524. 94
4, 662. 0 25. 35
4, 794. 5|25. 76
4, 928. 026. 16
4, 612. 5|25. 54|135. 05, 062. 526. 56
4, 738. 025. 91136. 0 5, 198. 026. 95
4, 864. 526. 28137.05, 334. 527.34
4, 992. 026. 65138. 0 5, 472.0 27.73
5, 120. 527. 01|139. 0| 5, 610. 528. 11
50 110.0 4, 250. 024. 74120. 0 4, 750. 026. 13130. 0
4/120.
5, 250. 0 27. 37 140. 0 5, 750. 0 28.49
98
HYDRAULIC TABLES
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
A
j
T
A
r T
A
11 111.0 1, 160. 5 9. 31121. 0
12 112. 0 1, 272. 010. 03122. 0
13 113.0 1,384. 510. 73 123. 0
14 114.0 1,498. 011. 41124. 0
1,270. 5 9. 44 131.0
1, 392. 010. 17 132.0
1, 514. 510. 89133. 0
1,638. 011. 59 134. 0
15 115.0 1,612. 5|12. 07 125. 0 1,762. 5|12. 28|135. 0|
16 116.0 1,728. 0|12. 73|126. 0| 1, 888. 0|12, 95|136. 0|
17 117.0 1,844. 5|13. 36|127. 0||2, 014. 5|13. 61137. 0
18 118. 0 1,962. 0|13. 99|128. 0| 2, 142, 0|14. 26|138. 0|
19 119.0 2,080. 5 14. 60 129. 0 2, 270. 514. 89139. 0
20 120.0 2, 200. 015. 20130. 0
21 121.0 2, 320. 515. 79|131. 0
22 122. 0 2, 442. 0 16. 37 132. 0
23 123.0 2,564. 516. 94133. 0
24 124.0 2,688. 0|17. 49|134. 0
25 125.0 2,812. 518. 04|135. 0
26 126. 02, 938. 0 18. 58 136. 0
27 127.0 3, 064. 519. 11 137. 0
28 128.0 3, 192. 019. 63|138. 0
29 |129. 0 3,320. 5|20. 14|139. 0|
30 130. 0 3,450. 020. 65|140.0
31 131.0 3, 580. 5|21. 15141. 0
32 132.0 3,712. 021. 64 142. 0
33 133.03, 844. 5 22. 12143. 0
34 134.0 3,978. 022. 60 144. 0
35 135. 0 4, 112. 5 23. 07 145. 0
36 136. 0 4, 248. 0 23. 53 146. 0
37 137.04, 384. 523. 99₤147.0
38 138. 0 4, 522. 024. 45 148. 0
39 139.0 4, 660. 5|24. 89|149. 0
1, 380. 5 9. 55 141.0
1, 512. 010. 30 142. 0
1, 644. 511. 03143. 0
1,778. 0 11. 75 144. 0
1, 912. 512. 46 145.0||
2,048. 0 13. 15|146. 0
2, 184. 5|13. 82 147. 0
2, 322. 014. 49 148.0
2, 460. 5 15. 14149. 0
2, 400. 015. 51140. 0 2, 600. 015. 78150.0
2, 530. 516. 12141. 0 2, 740. 516. 41151. 0
2, 662. 016. 72142. 0 2, 882. 017. 03152. 0
2,794. 517.31 143. 03, 024. 517. 64|153. 0)
2,928. 017. 89144. 0 3, 168. 0 18. 24 154. 0
3, 062. 5|18. 46|145. 0|
3, 198. 019. 02146. 0
3, 334. 519. 57 147. 0
3, 472. 0 20. 11 148. 0
3, 610. 5|20. 65|149. 0|
3,750. 0|21. 18 150.0
3, 890. 521. 70 151. 0
4, 032. 0|22. 21|152. 0
4, 174. 522. 71 153. 0
4, 318. 023. 21 154. 0
4, 462. 523. 70155. 0
4, 608. 024. 19 156. 0
4,754. 5 24. 67|157. 0
4, 902. 025. 14 158. 0
5,050. 5 25. 61 159. 0
5, 200. 0 26. 07 160. 0
5, 350. 526. 53 161. 0
40 140.0 4, 800. 025. 34 150. 0
41 141. 0 4, 940. 5 25. 77 151, 0
42 142.0 5,082. 0 26. 21 152. 05, 502. 026. 98162. 0
43 143.0 5,224. 526. 64 153.0) 5, 654. 5|27. 43|163. 0|
44 144.0 5,368. 0 27. 06 154. 0
45 145.0 5,512. 5 27. 48 155. 0
46 146.0 5,658. 027. 89 156.0
47 147.0 5,804. 528. 30157.0
48 148.0 5, 952. 028. 71158. 0
49 149.0 6, 100. 5|29. 11|159. 0|
5,808. 0 27.87 164. 0
5,962.5 28. 31|165. 0
6, 118. 028. 74 166. 0
6, 274. 5 29. 17167.0
6, 432. 0 29. 60₤168.0
6, 590. 5|30. 02/169. 0|
|1603, 312. 5|18. 83|155. 0|
3, 458. 0 19. 41 156. 0
3, 604. 519. 98157.0
3, 752. 020. 55158. 0
3,900. 521. 10159. 0
4,050. 0|21. 65₤160. 0
4, 200. 5/22. 19|161. 0
4, 352. 0|22. 72₤162. 0
4, 504. 5 23. 24 163. 0
4, 658. 023. 76 164. 0
4, 812. 5 24. 27 165. 0
4, 968. 024. 78 166. 0
5, 124. 5 25. 28 167. 0
5, 282. 025. 77168. 0
5, 440. 5/26. 26|169. 0|
5, 600. 026. 74 170. 0
5, 760. 5 27. 21171.0
5, 922. 0 27. 68 172. 0
6, 084. 528. 15|173. 0
6, 248. 0 28. 61 174. 0
6, 412. 5 29. 07175. 0
6, 578. 029. 52 176. 0
6, 744. 529. 96 177. 0
6, 912. 030. 40178. 0
7, 080. 5|30. 84|179. 0
1,490. 5 9.64
1, 632. 010. 41
1, 774. 511. 16
1,918. 0 11.89
2, 062. 512. 61
2, 208. 013. 32
2, 354. 514. 01
2, 502. 014. 70
2, 650. 515. 37
2,800. 016. 03
2, 950. 516. 67
3, 102. 017. 31
3, 254. 517. 94
3, 408. 018. 56
3, 562. 519. 16
3, 718. 0 19. 76
3,874. 520. 35
4, 032. 020.93
4, 190. 5|21. 51
4, 350. 022. 07
4, 510. 522. 63
4, 672. 0₤23. 18
4, 834. 523. 72
4, 998. 024. 26
5, 162.5 24. 79
5, 328. 025. 31
5, 494. 525. 83
5, 662. C 26, 34
5, 830. 526. 84
6, 000. 027. 34
6, 170. 527. 84
6, 342. 028. 32
6, 514. 528. 81
6, 688. 0 29.28
6, 862. 5 29.76
7, 038. 030. 22
7, 214. 530. 69
7, 392. 031. 15
7, 570. 531. 60
50 150.0 6,250. 0|29. 51511607, 750. 0|32. 05
.
7, 250. 0|31. 28₤180. 0|
. 0| 6, 750. 030. 43|170. 0|
HYDRAULIC TABLES
99
Table 6.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
A
T
A
T
T
A
11 151.0 1, 600. 5 9. 72 161. 0
12 152. 0 1, 752. 010. 50 162. 0
13 153. 0 1,904. 5 11. 26 163. 0
14 154. 0 2,058. 0 12. 01 164. 0
15 155.0 2, 212. 5 12. 75 165. 0
16 156. 0 2, 368. 0 13. 47 166. 0
17 157.0 2,524. 5 14. 18 167. 0
18158.0 2,682. 0 14. 88 168. 0
19 159.0 2,840. 515. 57 169. 0
20 160. 0 3, 000. 0 16. 24 170. 0
21 161.0 3, 160. 5 16. 90171. 0
22 162.0 3, 322. 017. 56 172. 0
23 163.0 3, 484. 518. 20173. 0
24 164. 0 3, 648. 0 18. 84 174. 0
25 165. 0 3, 812. 5 19. 46 175. 0
26 166. 0 3, 978. 0 20. 08 176. 0
27 167.0 4, 144. 520. 68 177. 0
28 168.0 4, 312. 021. 28₤178. 0
29 169. 0 4, 480. 521. 87 179. 0
1, 710. 5 9.80 171. 0
1, 872. 0 10. 59 172. 0
2, 034. 511. 36 173. 0
2, 198. 012. 12174. 0
1, 820. 5 9. 86 181. 0
1, 992. 010. 66 182. 0
2, 164. 5 11. 45 183. 0
2, 338. 0 12. 22 184. 0
2, 512. 5 12. 98 185. 0
2, 688. 0 13. 73 186. 0
2, 864. 5 14. 46 187. 0
2, 362. 5 12. 87 175. 0
2, 528. 013. 61 176. 0
2, 694. 514. 33 177. 0
2, 862. 015. 04178. 03, 042. 015. 19188. 0
3, 030. 515. 74179. 0 3, 220. 5 15. 90 189. 0
3, 400. 016. 61190. 0
3, 580. 517. 30191. 0
3, 762. 017. 98192. 0
3, 200. 016. 43 180. 0
3, 370. 5 17. 11 181. 0
3, 542. 017. 78182. 0
3, 714. 518. 44 183. 03, 944. 5 18. 66 193. 0
3, 888. 019. 09 184. 0 4, 128.019. 32 194. 0
4, 062. 519. 73 185. 0
4, 238. 020. 36 186. 0
4, 414. 520. 98 187. 0
4, 592. 021. 60188. 0
4, 770. 5|22. 20189.0
4, 950. 022. 80 190. 0
5, 130. 523. 39191. 0
5, 312. 023. 98192. 0
5, 494. 5 24. 55 193. 0
4, 312. 5 19. 97 195. 0
4, 498. 0 20. 62 196. 0
4, 684. 5 21. 26 197. 0
4,872. 0 21. 89 198. 0|
5,060. 5 22. 51 199. 0
5, 250. 0 23. 12 200. 0
5, 440. 523. 72 201.0
5, 632. 024, 32202. 0
5, 824. 5 24. 91203. 0
30 170. 0 4, 650.0 22. 45 180. 0
31 171.0 4,820. 5|23. 03|181. 0
32 172.0 4,992. 023. 60 182. 0
33 173. 0 5, 164. 5 24. 16 183. 0
34 174.05, 338. 024. 71 184. 05, 678. 025. 12194. 06, 018. 025. 50₤204. 0
35 175.0 5, 512. 5 25. 26 185. 0
36 176.0 5, 688. 0 25. 80 186. 0
37 177.0 5,864. 526. 33|187. 0
38 178.0 6, 042.0 26. 86 188. 0
39 179.0 6, 220. 5 27. 38 189. 0
40 180.0 6, 400. 0 27. 89190. 0
41 181.0 6, 580. 5|28. 40|191. 0
42 182.0 6, 762. 0 28. 91 192. 0
43 183.0 6, 944. 529. 41193. 0
44 184.0 7, 128. 0 29. 90194. 0
45 185.0 7, 312, 530. 39|195. 0
46 186. 0 7, 498. 030. 87196. 0
47 187.0 7, 684. 531. 35 197. 0
48 188. 0 7, 872. 031. 83 198. 0
49 189.0 8,060. 532. 30199. 0
5, 862. 5 25. 68 195. 0
6, 048. 026. 24 196. 0
6, 234. 526. 79 197. 0
6, 422. 027. 33198. 0
6, 610. 527.87 199. 0
6, 212. 526. 07 205. 0
6, 408. 0 26. 64 206. 0
6, 604. 527. 21 207. 0
6, 802. 027. 77 208. 0
7, 000. 5/28. 32 209. 0
1,930. 59.92
2, 112. 010. 73
2, 294. 511. 53
2, 478. 012. 31
2, 662. 513. 08
2, 848. 0 13. 84
3, 034. 514. 59
3, 222. 015. 32
3, 410. 516. 05
3, 600.0 16.77
3, 790. 517. 47
3, 982. 018. 17
4, 174. 518. 85
4, 368. 0 19. 53
4, 562. 520. 20
4, 758. 020. 86
4, 954. 521. 51
5, 152. 022. 15
5, 350. 522. 78
5, 550. 023. 41
5,750. 524. 03
5, 952. 024. 64
6, 154.5 25. 25
6, 358. 025. 84
6, 562. 5 26. 43
6, 768. 0 27.02
6, 974. 527.60
7, 182. 028. 17
7, 390. 528. 73
6, 800. 028. 40 200. 07, 200. 028. 86 210. 0 7, 600. 029. 29
6, 990. 528. 92 201.0 7, 400. 529. 40211. 0 7, 810. 5 29. 85
7, 182. 029. 44 202. 0 7, 602. 0 29. 94 212. 0 8, 022. 030. 40
7, 374. 529. 96 203. 0 7, 804. 530. 47 213.08, 234. 530. 94
7, 568. 030. 47 204. 0 8, 008. 030. 99214. 0 8, 448. 031. 48
7, 762. 530. 97 205. 0
7, 958. 031. 47 206. 0
8, 154. 531.97 207. 0
8, 352. 032. 46 208. 0
8, 550. 532. 94209. 0
8, 212. 531. 51 215. 0
8, 418. 032. 02 216. 0
8, 624. 532. 53 217. 0
8, 832. 033. 04₤218. 0
9, 040. 533. 54|219. 0
8, 662. 5|32. 01
8, 878. 032. 54
9, 094. 533. 06
9, 312. 033. 58
9, 530. 534. 09
50 190.0 8, 250. 032. 76 200. 0
032.
9, 750. 034. 60
8, 750. 033. 42210. 0
9, 250. 034. 03₤220. 0
100
HYDRAULIC TABLES
Table 6.—Area in square feet,
feet, A,
A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
1/2
side slopes ½ to 1-Continued

Bottom width
180 feet
Depth
Bottom width
190 feet
Bottom width
200 feet
T
A
T
T
A
T
T
A
T
11
191.0
2,040, 5
9.97
201.0
2, 150.5
10.02
211.0 2,260.5
10.06
12
192.0 | 2,232.0 | 10.79
202.0
2, 352.0
10.85
212.0❘ 2, 472. 0
10.90
13
193.0❘ 2, 424. 5
11.60
203.0
2, 554.5
11.66
213.02, 684. 5
11.72
14
194.0 2,618. 0
12.39
204.0
2,758.0
12.46
214.0 2, 898.0
12.53
19
***** 27224 22ERR AMA**
15 195.0
16 196.0
2,812.5
13. 17
205.0
2,962.5
13.25
215.03, 112. 5
13.33
3,
3,008.0
13.94
206.0
3, 168.0
14.03
216.0 3, 328. 0
14. 12
197.03, 204. 5
14.70
207.0
3, 374.5
14.80
217.03, 544. 5
14.89
18
198.0❘ 3, 402. 0
15.45
208.0
3, 582.0
15.56
218.0 3,762.0
15.66
199.0 3,600.5
16. 18
209.0
3,790.5
16.30
219.03, 980. 5
16.42
21
20 200.0
201.0
3,800.0
16.91
210.0 4,000.0
17.04
220.0 4,200.0
17.16
4,000. 5
17.63
211.04, 210.5
17.77
221.04, 420.5
17.90
202.04, 202. 0
18.33
212.04, 422.0
18.49
222.0 4, 642.0
18.63
23
203.0
4, 404. 5
19.03
213.0 4, 634.5
19.20
223.0
4,864. 5
19.35
204.04, 608.0
25 205.0 4,812.5
19.72 214.0
4,848.0
19.90
224.0
5,088.0
20.06
20.40
215.0 5,062.5
20.59
225.0❘ 5, 312. 5
20.76
26
206.0 | 5, 018. 0
21.07
216.05, 278.0
21.27
226.0 5, 538.0
21.45
27
207.0❘ 5, 224. 5
21.73
217.0
5, 494. 5
21.95
227.05, 764. 5
22.14
28
208.0
5, 432. 0
22.39
218.0
5, 712.0
22.61
228.0 5, 992. 0
22.82
29
209.05, 640. 5
23.04
219.0
5,930. 5
23.27
229.0❘ 6, 220.5
23.49
30 210.0 5,850.0
23.68
220.0
6, 150.0
23.92
230.0 6, 450.0
24. 15
31
211.0
6,060. 5
24.31
221.0
6, 370.5
24.57
231.0
6, 680.5
24.81
32
212.06, 272. 0
24.93
222.0
6, 592.0
25.20 232.0
6, 912,0
25.45
33 213.0 | 6, 484. 5
25.55
223.0
6, 814. 5
25.83
233.0
7, 144.5
26.09
34 214.0 6, 698. O
26. 16
224.0
7,038.0
26.46
234.0
7,378.0
26.73
35
37
88588 G**** ***** 8
215.0
6, 912.5
26.77
225.0❘ 7, 262. 5
27.07
235.0
7,612.5
27.36
36 216.0 7, 128. 0
27.36
226.0
7,488.0
27.68 236.0
7,848.0
27.98
217.0
7,344. 5
27.95
227.0
7,714.5
28.29
237.0
8, 084.5
28.59
38
218.07, 562. 0
28.54 228.0
7,942. 0
28.88 238.0
8,322.0
29.20
39
219.0 7, 780. 5
29.12
229.0
8, 170.5
29.47
239.0
8, 560. 5
29.81
40 220.0 | 8,000.0
29.69
230.0
8,400.0
30. 06
240.0
8,800.0
30.40
41
221.0 | 8, 220. 5
30.26
231.0
8,630.5
30.64
241.0
9, 040.5
30.99
42
222.0❘ 8,
8,442.0
30.82
232.0
8,862.0
31. 21
242.0
9, 282.0
31.58
43
223.08, 664. 5
31.38
233.0
9, 094. 5
31.78
243.0
9,524. 5
32. 16
44
224.08,888.0
31.93
234.0
9, 328.0
32.35
244.0
9, 768. 0
32.74
45 225.0 | 9, 112. 5
32.47
235.0
9, 562.5
32.90
245.0
10,012. 5
33.31
46
226.0 | 9, 338. 0
33.01
236.0
9,798.0
33. 46
246.0 10, 258.0
33.87
47
227.09, 564. 5
33.55
237.0 10, 034, 5
34.00
247.0 10, 504, 5
34.43
48 228.09, 792.0
34.08
238.0 10, 272. 0
34.55
248.0 10, 752.0
34.99
49
229.010, 020.5
34.61
239.0 10, 510.5
35.09
249.0 11,000. 5
35.54
50
230.0 10, 250, 0
35. 13
240.0 10,750.0
35.62
250.0 11, 250.0
36.08
HYDRAULIC TABLES
101
Table 7.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾ to 1
T, and

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T T
Α
↑
T
A
T
A
T
0.2
2.3
0.43 0.17
3.3
0.4
2. 6
0.6
2.9
0.8
3.2
2.08
.92 .31
1.47 .42 3.9
.52
4.2
3.6
0.63 0.18
1.32 .33
2.07 .46 4.9
2.88.58
4.3
0.83 0.18
5.3
1.03 0.19
4.6
5.2
1.72 .34
2.67 .49 5.9
3.68 .61
5.6
2.12 .35
3.27 .50
6.2
4.48
.64
1.0
3.5
2.75 .61 4.5
1.2
3.8
3.48 .70
4.8
3.75 68 5.5
4.68 .78
4.75 73
6.5
5.75 .77
5.8
5.88 .84 6.8
7.08 .89
1.4
4. 1
4.27 .78
5.1
5.67 .87
6. 1
7.07 .94
7.1
8.47 1.00
1. 6
4.4
5.12 .85 5.4
6.72.96
6.4
8.32 1.04
7.4
9.92 1.10
1.8
4.7
6.03 .93 5.7
7.83 1.04
6.7
9.63 1. 13
7.7
11.43 1.20
2.0
5.0
7.00 1.00 6.0
9.00 1.13
7.0
11.00 1.22
8.0
13.00 1.30
2.2
5.3
8.03 1.07
2.4
5.6
9.12 1.14
6.3
6.6
2.6 5.9
2.8 6.2
10.27 1.21 6.9
11.48 1.28
10.23 1,20 7.3
11.52 1.28
12.87 1.35
12.43 1.31
8.3
14. 63 1.39
7.6
13.92 1.39
8.6
16.32 1.48
7.9
15.47 1.47 8.9
18.07 1.57
7.2
14.28 1.43
8.2
17.08 1.55
9.2|
19.88 1.66
3.0
6.5
3.2 6.8
3.4
7.1
3.6
7.4
3.8 7.7
12.75 1.34
14.08 1.41 7.8
15.47 1.47 8.1
16.92 1.54 8.4
18.43 1.60
7.5
15.75 1.50
8.5
18.75 1.63 9.5
21.75 1.74
8.7
17.28 1.57
18.87 1.64
20.52 1.71 9.4
22.23 1.78 9.7
8.8
20.48 1.71 9.8
23.68 1.82
9.1
22.27 1.78 10.1
25.67 1.90
24.12 1.86 10.4
27.72 1.98
26.03 1.93 10.7
29.83 2.06
4.0 8.0
4.2 8.3
20.00 1.67
21.63 1.73 9.3
9.0
4.4 8.6
23.32 1.79 9.6
4.6 8.9
4.8
9.2
25.07 1.86 9.9
26.88 1.92 10.2
24.00 1.85 10.0
25.83 1.91 10.3
27.72 1.98 10.6
29.67 2.05 10.9
28.00 2.00 11.0
30.03 2.07 11.3
32.12 2.14 11.6
32.00 2.13
34.23 2.21
36.52 2.28
34.27 2.21 11.9
38.87 2.36
31.68 2.11 11. 2
36.48 2.28 12. 2
41.28 2.43
5.0
9.5
28.75 1.98 10.5
33.75 2.18 11.5
38.75 2.35 12.5
43.75 2.50
5.2
9.8
30.68 2.05] 10.8
35.88 2.24| 11.8
41.08 2.42 12.8
46.28 2.57
5.4
10. 1
5.6 10.4
5.8 10.7
32.67 2.11 11.1
34.72 2. 17
36.83 2.23 11.7
38.07 2.31 12.1
43.47 2.48 13.1
48.87 2.64
11.4
40.32 2.37 12.4
42.63 2.44 12.7
45.92 2.55| 13.4
48.43 2.62 13.7
51.52 2.71
54.23 2.78
6.0
11.0
39.00 2.29| 12.0
45.00 2.50 13.0
51.00 2.68 14.0
57.00 2.85
6.2
11.3
41.23 2.36 12.3
47.43 2.56 13.3
53.63 2.75 14.3
59.83 2.92
6.4
11.6
43.52 2.42 12.6
49.92 2.63| 13.6]
56.32 2.82 14.6
62.72 2.99
6.6
11.9
45.87 2.48 12.9
52.47 2.69 13.9
59.07 2.88 11.9
65.67 3.05
6.8
12.2
48.28 2.54 13.2
55.08 2.75 14.2
61.88 2.95 15.2
68.68 3.12
7.0
12.5
50.75 2.60 13.5
57.75 2.82 14.5
64.75 3.01 15.5
71.75 3.19
7.5
13.2
57.18 2.76 14.2
64.68 2.97 15.2
8.0
14.0
8.5 14.7
9.0
15.5
64.00 2.91 15.0
71.18 3.06 15.7
78.75 3.21 16.5
72.00 3.13 16.0
79.68 3.29 16.7
87.75 3.44 17.5
9.5
16.2
10.0 17.0
86.68 3.37 17.2
95.00 3.52 18.0
96.18 3.60 18.2
105.00 3.75 19.0
72.18 3.17 16.2
80.00 3.33 17.0
88.18 3.49 17.7
96.75 3.65 18.5
105.68 3.81 19.2
115.00 3.97 20.0
115. 18 4.01
125.00 4. 17
79.68 3.36
88.00 3.52
96.68 3.68
105.75 3.85
10.5 17.7
135. 18 4.33
103.68 3.67 18.7|
124.68 4.12 20.7
114. 18 3.90 19.7
102
HYDRAULIC TABLES
Table 7.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
A
T
T
A
T T
A
↑
T
A
T
0.2
6.3
1.23 0.19 7.3
1.43 0.19
8.3
1.63 0.19
9.3
1.83 0.19
0.4 6.6
2.52 .36
7.6
2.92 .37
8.6
3.32 .37
9.6
3.72 .37
0.6 6.9
3.87
.52
7.9
4.47 .53
8.9
5.07
.53 9.9
5.67 .54
0.8
7.2
5. 28
.66
8.2
6.08 68
9.2
6.88
.69 10.2
7.68 .70
1.0
7.5
6.75
.79 8.5
7.75 .82
9.5
8.75
.83 10.5
9.75 .85
1.2
7.8
8.28 .92
8.8
9.48.95
9.8
10.68 .97 10.8
11.88 .99
1. 4
8.1
9.87 1.04 9. 1
11.27 1.07 10.1
12.67 1.10 11.1
14.07 1.13
1.6
8.4
11.52 1.15
9.4
13.12 1.19 10.4
14.72 1.23 11.4
1.8
8.7
13.23 1.26 9.7
15.03 1.31 10.7
16.83 1.35 11.7
16.32 1.26
18.63 1.38
2.0 9.0
2.2 9.3
15.00 1.36 10.0
16.83 1.46] 10.3
17.00 1.42 11.0
2.4 9.6
18.72 1.56| 10.6
2.6
9.9
2.8 10.2
20.67 1.65 10.9
22.68 1.74| 11.2
19.03 1.52 11.3
21.12 1.62 11.6
23.27 1.72 11.9
25.48 1.82 12.2
19.00 1.46 12.0
21.23 1.57 12 3
23.52 1.68 12.6
25.87 1.78 12.9
28.28 1.89 13.2
21.00 1.50
23.43 1.62
25.92 1.73
28.47 1.84
31.08 1.94
3.0 10.5
24.75 1.83 11.5
27.75 1.91 12.5
3.2 10.8
26.88 1.92 11.8
3.4 11.1
29.07 2.00 12. 1
3.6
11.4
31.32 2.09] 12.4]
3.8
11.7
33.63 2.17 12.7
30.08 2.01 12.8
32.47 2.09 13.1
34.92 2.18] 13.4
37.43 2.27 13.7
30.75 1.98 13.5
33.28 2.08 13.8
35.87 2.17 14.1
33.75 2.05
36.48 2.15
39.27 2.24
38.52 2.27 14.4
41.23 2.36 14.7
42.12 2.34
45.03 2.43
4.0 12.0
36.00 2.25 13.0
40.00 2.35 14.0
4.2 12.3
38.43 2.33] 13.3
4.4 12.6
40.92 2.41 13.6
42.63 2.44 14.3
45.32 2.52 14.6
44.00 2.44 15.0
46.83 2.53 15.3
49.72 2.62 15.6
48.00 2.53
51.03 2.62
54.12 2.71
4,6
12.9
43.47 2.48 13.9
48.07 2.60 14.9
52.67 2.70 15.9
57.27 2.79
4.8 13.2
46.08 2.56 14. 2
50.88 2.68 15.2
55.68 2.78 16.2
60.48 2.88
5.0
13. 5
48.75 2.64 14.5
5.2
13.8
51.48 2.71| 14.8]
5.4
14. 1
54.27 2.78| 15. 1|
5.6
14.4
57.12 2.86 15.4
53.75 2.76 15.5
56.68 2.83 15.8
59.67 2.91 16.1
62.72 2.99 16.4
58.75 2.87 16.5
61.88 2.95 16.8
65.07 3.03 17.1|
68.32 3.11 17.4
63.75 2.97
67.08 3.05
70.47 3.13
73.92 3.21
5.8
14.7
60.03 2.93 15.7
65.83 3.06 16.7
71.63 3.18 17.7
77.43 3.29
6.0 15.0
63.00 3.00 16.0
69.00 3.14 17.0
6.2 15.3
66.03 3.07| 16.3|
72.23 3.21| 17.3
75.00 3.26 18.0
78.43 3.34 18.3
6.4 15.6
69.12 3.14 16.6
75.52 3.28 17.6
81.92 3.41 18.6
81.00 3.38
84.63 3.45
88.32 3.53
6.6 15.9
6.8 16.2
72,27 3, 21| 16.9]
75.48 3.28】 17.2
78.87 3.36 17.9
85.47 3.49 18.9
92.07 3.61
82.28 3.43] 18.2|
89.08 3.56 19.2
95.88 3.69
7.0
16.5
7.5 17.2
8.0 18.0
8.5 18.7
9.0 19.5
78.75 3.35 17.5
87.18 3.52 18.2
96.00 3.69| 19.0
105.18 3.86 19.7
114.75 4.03 20.5
85.75 3.50 18.5
94.68 3.68 19.2
104.00 3.85 20.0
113.68 4.02 20.7
123.75 4.19 21.5
92.75 3.64 19.5
102, 18] 3.82 20. 2|
112.00 4.00 21.0
122. 18 4.18 21.7
132.75 4.35 22.5
99.75 3.76
109.68 3.95
120.00 4.14
130.68 4.32
141.75 4.50
9.5 20.2
10.0 21.0
124.68 4.19 21.2
135.00 4.35 22.0
134. 18 4.36 22.2
145.00 4. 53 23.0
143.68 4. 53 23.2
155.00 4.70 24.0
153. 18 4.68
165.00 4.85
10.5 21.7
177. 18 5.03
145. 68 4.52 22.7
166.68 4.87 24.7
156. 18 4.70 23.7
HYDRAULIC TABLES
103
Table 7.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾ to 1-
Continued
T, and
T,

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
↑ T
A
T
A
T
A
T
0.2
10.3
0.4
10.6
2.03 0.19 12.3
4. 12 .37 12.6
0.6
10.9
6. 27
.55 12.9
2.43 0.19 14.3
4.92 .38 14.6
7.47 .55 14.9
2.83 0.20 16.3
5.72 .38 16.6
3.23 0.20
6.52 .38
8.67
.56 16.9
9.87
.56
0.8
11. 2
8.48
.71 13. 2
10.08
.72 15.2
11.68
.73 17.2
13. 28
.74
1.0
11. 5
10.75
.86| 13.5
1.2
11.8
1.4
12. 1
1.6
12. 4
1.8
12.7
13.08 1.01 13.8
15.47 1. 15| 14.1
17.92 1.28 14. 4
20.43 1.41 14.7
12.75 .88 15.5
15. 48 1.03 15.8
18. 27 1.18 16.1
21.12 1.32 16.4
24.03 1.46 16.7
14. 75
.89 17.5
16.75 .91
17.88 1.05 17.8
21.07 1.20 18.1
24. 32 1.35 18.4
20.28 1.07
23.87 1.22
27.52 1.38
27.63 1.49 18.7
31.23 1.52
2.0
13.0
2.2
13. 3
2.4
13.6
2.6
13.9
2.8
14. 2
23.00 1.53 15.0
25.63 1.65 15.3]
28.32 1.77 15.6
31.07 1.88 15.9
33.88 1.99| 16.2
27.00 1.59 17.0
30.03 1.72 17.3
33.12 1.84 17.6
36. 27 1.96 17.9
39.48 2.08 18.2
31.00 1.63 19.0
34.43 1.77 19.3
37.92 1.90 19.6
41.47 2.02 19.9
45.08 2.15 20.2
35.00 1.67
38.83 1.81
42.72 1.94
46.67 2.07
50.68 2.20
3.0
14. 5
36.75 2.10 16.5
42.75 2.19 18.5
48.75 2.27 20.5
3.2
14.8
39.68 2.20 16.8
46.08 2.30 18.8
3.4
15. 1
42.67 2.31| 17.1|
49.47 2.41] 19.1
52.48 2.39 20.8
56.27 2.50 21.1
54.75 2.33
58.88 2.45
63.07 2.57
3.6
15. 4
45.72 2. 41
17.4
52.92 2.52 19.4
3.8
15. 7
48.83 2.50 17.7
56.43 2.62 19.7
60.12 2.61 21.4
64.03 2.72 21.7
67.32 2.69
71.63 2.81
4.0
16.0
52.00 2.60 18.0
4.2
16.3
55.23 2.69 18.3
60.00 2.73] 20.0
63.63 2.83 20.3
4.4
16. 6
4.6
16.9
58.52 2.79 18.6
61.87 2.88 18.9
67.32 2.93 20.6
68.00 2.83| 22.0
72.03 2.94 22.3
76.12 3.04| 22.6]
4.8
17.2
65.28 2.97 19.2|
71.07 3.02 20.9
74.88 3.12| 21.2|
80.27 3.15| 22.9|
84.48 3.25|| 23.2|
76.00 2.92
80.43 3.04
84.92 3.15
89.47 3.25
94.08 3.36
5.0 17.5
5.2 17.8
5.4
18. 1
5.6
18. 4
5.8
18.7
68.75 3.06 19. 5
72.28 3.14 19.8
75.87 3.23] 20.1|
79.52 3.31 20.4
83.23 3.40] 20.7
78.75 3.21 21.5
82.68 3.31 21.8
86.67 3.40 22.1
90.72 3.49 22.4
94.83 3.58| 22,7
6.0
19.0
6.2
19.3
6.4 19.6
6.6 19.9
6.8 20.2
87.00 3.48 21.0
90.83 3.56 21.3
94.72 3.64 21.6
98.67 3.72 21.9
102.68 3.80 22.2
7.0
20.5
7.5
21.2
8.0
22. 0
8.5
22.7
9.0
23.5
9.5
24. 2
10.0
25.0
162.68 4.82] 26. 2|
175.00 5.00 27.0
106.75 3.88 22.5
117.18 4.08] 23.2|
128.00 4.27 24.0
139. 18 4. 45 24.7
150.75 4.64 25.5
99.00 3.67 23.0
103.23 3.75 23.3
107.52 3.84 23.6
111.87 3.93] 23.9.
116. 28 4.01 24.2]
120.75 4.09 24.5
132.18 4.30 25. 2
144.00 4.50 26.0
156. 18 4.70 26.7
168.75 4.89 27.5
181.68 5.08i 28.2
195.00 5.27 29.0
88.75 3.35 23.5
93.08 3.45 23.8
97.47 3.54 24.1
101.92 3.64 24.4|
106.43 3.73 24.7
111.00 3.83| 25.0|
115.63 3.92 25.3
120.32 4.01 25.6
125.07 4. 10 25.9
129.88 4.19 26. 2
134.75 4.28| 26.5
147. 18 4.49 27.2
160.00 4.71 28.0
173. 18 4.91 28.7
28.7
186.75 5.12 29.5
98.75 3.46
103. 48 3.57
108. 27 3.67
113.12 3.77
118.03 3.87
148.75 4. 44
162.18 4.67
176.00 4.89
190. 18 5.11
204.75 5.32
200.68 5.32| 30.2|||| 219.68] 5. 53
215.00 5.51 31.0 235.00 5.73
123.00 3.97
128.03 4.06
133. 12 4. 16
138. 27 4. 25
143.48 4.35
10.5 25.7 187.68 5. 18 27.7
229.68 5.71 31.7 250.68 5.93
208.68 5.46 29.7
104
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth

T
A
T
ATT
Τ
A
T
T
A
0.2 18.3
0.4 18.6
0.6 18.9
0.8 19.2
3.63 0.20 20.3
7.32 .39 20.6
11.07 .57 20.9
14.88 74 21.2
16.48
4.03 0.20 22. 3
8.12.39 22.6
12.27 .57 22.9
.75 23.2
4.43 0.20 24.3
8.92
4.83 0.20
.39 24.6
9.72 .39
13. 47
.57 24.9
14.67 .58
•
18. 08
.75 25.2
19.68 .76
1.0 19.5
1.2 19.8
1.4 20.1
1.6 20.4
18.75 .91 21.5
22.68 1.08 21.8
26.67 1.24 22.1
30.72 1.40 22.4
1.8
20.7
34.83 1.55| 22.7
20.75 .92) 23.5]
25.08 1.091 23.8
29.47 1.25] 24.1.
33.92 1.41 24.4
38.43 1.57 24.7
22.75 .93] 25.5
27.48 1.10 25.8
32. 27 1.27 26. 1
37.12 1.43 26.4
42.03 1.59 26.7
24.75 .93
29.88 1.11
35.07 1.28
40.32 1.44
45.63 1.60
2.0
21.0
39.00 1.70| 23.0|
2.2 21.31
43.23 1.84 23.3
2.4
21.6
47.52 1.98 23.6
2.6
21.9
51.87 2.12 23.9
2.8
22.2
56.28 2.25| 24.2|
43.00 1.72| 25.0
47.63 1.87 25.3
52.32 2.01 25.6
57.07 2.15 25.9
61.88 2.29 26. 2
47.00 1.74 27.0
52.03 1.89 27.3
57.12 2.04| 27.6|
62. 27 2.18 27.9
67.48 2.33 28.2
51.00 1.76
56.43 1.91
61.92 2.06
67.47 2.21
73.08 2.36
3.0
22.5
60.75 2.38 24.5
3.2 22.8
65.28 2.51 24.8
3.4
23.1
69.87 2.64 25. 1
3.6
23.4
74.52 2.76 25.4
3.8
23.7
79.23 2.88 25.7
66.75 2.43] 26.5]
71.68 2.56 26.8
76.67 2.69| 27.1|
81.72 2.82 27.4
86.83 2.94| 27.7
72.75 2.47 28.5
78.75 2.50
78.08 2.60] 28.8
84.48 2.64
83.47 2.74 29.1
88.92 2.87 29.4
94.43 3.00 29.7
90.27 2.78
96.12 2.91
102.03 3.05
4.0
24.01
84.00 3.00 26.0
4.2
24.3
4. 4
24.6
4.6
24.9
4.8
25.2
88.83 3.12 26.3
93.72 3.23] 26.6]
98.67 3.34 26.9
103.68 3.46 27. 2
92.00 3.07 28.0
97.23 3.19 28.3
102.52 3.31 28.6
107.87 3.42 28.9
113.28 3.54 29.2
100.00 3.13] 30.0
108.00 3.18
105.63 3.25 30.3
111.32 3.37 30.6
117.07 3.49 30.9
122.88 3.61 31.2
114.03 3.31
120.12 3.43
126. 27 3.56
132.48 3.68
5.0 25.5
5.2 25.8
5.4 26.1
5.6
5.8
26.4
26.7
108.75 3.57 27.5
113.88 3.67 27.8
119.07 3.78] 28. 1
124.32 3.89 28.4
129.63 3.99] 28.7
118.75 3.65 29.5
124.28 3.77 29.8
129.87 3.88 30.1
135. 52 3.99 30.4
141.23 4.09 30.7
128.75 3.73] 31.5
134.68 3.85 31.8
138.75 3.80
145.08 3.92
140.67 3.96 32.1
151.47 4.04
146.72 4.08 32.4
152.83 4.19 32.7
157.92 4.16
164.43 4.27
6.0 27.0
6.2 27.3
6.4 27.6
135.00 4.09 29.0
140.43 4.19 29.3
145.92 4. 29 29.6
6.6
27.9
151.47 4.39 29.9
6.8
28.2
157.08 4.49 30.2
147.00 4.20 31.0
152.83 4.31 31.3
158.72 4.41 31.6
164.67 4.51 31.9
170.68 4.61 32. 2
159.00 4.30| 33.0
165.23 4.41| 33.3|
171.52 4.51 33.6
177.87 4.62 33.9
184.28 4.73 34.2
171.00 4.38
177.63 4.50
184.32 4.61
191.07 4.72
197.88 4.83
7.0
28.5
7.5 29.2
8.0 30.0
8.5 30.7
9.0 31.5
9.5 32.2
10.0 33.0
162.75 4.58 30.5
177.18 4.82 31.2
192.00 5.05] 32.0
207.18 5.28 32.7
222.75 5.50| 33.5|
176.75 4.71 32.5
192.18 4.96] 33.2
208.00 5.20] 34.0|
224.18 5.43 34.7
240.75 5.66 35.5
190.75 4.83 34.5
207.18 5.08 35.2|
224.00 5.33 36.0
241.18 5. 58 36.7
258.75 5.81 37.5]
204.75 4.93
222.18 5.20
240.00 5.45
258.18 5.71
276.75 5.95
238.68 5.72 34.2
255.00 5.93| 35.0
257.68 5.89 36.2
275.00 6.11| 37.0
276.68 6.05 38.2
295.00 6.28 39.0
295.68 6.19
315.00 6.43
10.5 33.7
334.68 6.66
271.68 6.14 35.7
313.68 6.50 39. 7
292.68 6.33 37.7
HYDRAULIC TABLES
105
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾ to 1—Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
T
A
до
T
T
A
до
T
A
0.2
26.3
0.4
26. 6
0.6
26.9
0.8
27.2
5.23 0.20 28.3
10.52 .39 28.6
15.87 .58 28.9
21.28.76 29.2
5.63 0.20 30.3
11.32
.39 30.6
6.03 0.20 32.31
12.12.39 32, 6
6.43 0.20
12.92 .39
17.07
.58 30.9
18.27 .58 32.9
19.47 .58
22.88
.76 31. 2
24. 48
.77 33.2
26.08 .77
1.0
27.5
1.2 27.8
1.4
28. 1
1.6
28.4
1.8
28.7
26.75 .94 29.5
32. 28 1.11 29.8
37.87 1.28 30.1
43.52 1.45] 30.4
49.23 1.61| 30.7
28.75 .94 31.5
34.68 1.12| 31.8|
40.67 1.29 32.1
46.72 1.46 32.4
52.83 1.63 32,7
30.75 .95 33.5
37.08 1. 12 33.8
43.47 1.30 34.1
49.92 1.47 34. 4
56.43 1.64 34.7
32.75
39.48 1. 13
46. 27 1.30
53.12 1.48
60.03 1.64
.95
2.0
29.0
55.00 1.77 31.0
2.2
29.3
60.83 1.93 31.3
59.00 1.79 33.0
65.23 1.95 33.3
2.4
29.6
66.72 2.09 31.6
71. 52 2.10 33. 6
2.6 29.9
72.67 2.24 31.9
2.8 30.2
78.68 2.38 32. 2
77.87 2.26 33.9
84.28 2.41 34. 2
63.00 1.80 35. 0
69.63 1.96 35.3
76.32 2.12 35. 6
83.07 2.28 35.9
89.88 2.43 36.2
67.00 1.81
74.03 1.97
81.12 2.13
88.27 2.29
95.48 2.45
3.0 30.5
84.75 2.53 32.5
3.2 30.8
90.88 2.67 32.8
3.4
31.1
3.6 31.4
3.8
31.7
90.75 2.56] 34. 5
97.28 2.70 34.8
103.87 2.85 35.1
110.52 2.99 35.4
117.23 3. 13 35.7
4.0
32.0
4.2
32. 3
4.4 32.6
4.6
32.9
4.8
33. 2
142.08 3.74| 35, 2|
97.07 2.81 33, 1
103.32 2.95 33. 4
109.63 3.09 33.7
116.00 3.22 34.0
122.43 3.35 34.3
128.92 3. 48 34.6
135.47 3.61| 34.9)
124.00 3.261 36. 01
130.83 3.40 36.3
137.72 3.53 36.6
144.67 3.66 36.9
151.68 3.79 37.2
132.00 3.30 38.0
139. 23 3. 44 38.3
146. 52 3.57 38.6
153.87 3.71 38.9
161.28 3.84 39.2
140.00 3.33
147.63 3.47
155.32 3.61
163.07 3.75
170.88 3.88
96.75 2.58 36.5
103. 68 2.73 36.8
110.67 2.87 37.1
117.72 3.02] 37.4
124.83 3.16 37.7
102.75 2.60
110.08 2.75
117.47 2.90
124.92 3.05
132.43 3.19
5.0
33.5
148.75 3.86 35,5
5.2 33.8
5.4 34. 1
5.6
34. 4
5.8
34.7
155. 48 3.99 35.8
162. 27 4. 11 36. 1
169.12 4. 23 36.4
176.03 4.35 36.7
158.75 3.92 37.5
165.88 4.05 37.8
173.07 4.17 38.1
180.32 4.29 38.4
187.63 4. 41 38.7
168.75 3.97 39.5
176. 28 4. 10
183.87 4.23 40.1
191. 52 4.35 40.4
199. 23 4.48 40.7
178.75 4.02
39.8
186.68] 4.15
194.67 4.28
202.72 4.41
210.83 4.53
6.0
35.0
6.2
35. 3
6.4 35.6
183.00 4.46 37.0
190.03 4.58 37.3
197.12 4.69 37.6
6.6 35.9
6.8 36.2
204.27 4.81 37.9
211.48 4.92 38.2
195.00 4.53 39.0
202.43 4.65 39.3
209.92 4.77 39.6
217.47 4.89 39.9
225.08 5.00 40.2
207. 00 4.60 41. 0
207.00 4.60 41.0
214. 83 4. 72 41.3
222.72 4.84 41.6
230.67 4.96 41.9
238. 68 5. 08 42. 2
219.00 4.66
227, 23 4.78
235.52 4.91
243.87 5.03
252.28 5.15
7.0
7.5 37.2
36. 5
218.75 5.03 38. 5
237.18 5.30 39.2
8.0 38.0
256.00 5.57 40.0
232.75 5.12 40.5
252.18 5.39 41. 2
272.00 5.67 42.0
246.75 5. 19 42.5
267. 18 5.48 43.2
288.00 5.76 44.0
260.75 5.27
282.18 5.56
304.00 5.85
8.5 38.7
9.0 39.5
275. 18 5.82 40.7
294.75 6.08 41.5
292. 18
5. 93
42.7
309. 18
6.03) 44.7
326.18 6. 13
312. 75
6. 19
43. 5
330.75 6. 30 45. 5
348.75 6.40
9.5 40.2
10.0 41.0
10.5
314.68 6.33 42.2
335.00 6.57 43.0
41.7 355.68 6.81 43.7
333.68 6.45 44. 2
355.00 6.70 45.0
376.68 6.94 45.7
352.68 6.56] 46.2|
375.00 6.82 47.0
397.68 7.07 47.7
371.68 6.67
395.00 6.93
418.68 7.19
563189°-44.
-8
106
HYDRAULIC TABLES
Table 7.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
T
A
T
A
T T
A
T
0.2 35.3
7.03 0.20 40.3
8.03 0.20 45.3
0.4 35.6
14.12 .39 40.6
16. 12
.39 45.6
0.6
35.9
21.27 .58 40.9
24. 27
.58 45.9!
0.8
36.2
28.48
.77 41.2
32.48
.77 46.2
9.03 0.20 50.3
18.12.39 50.6
27.27 .59 50.9
36.48.78 51.2
10.03 0.20
20.12.39
30.27 .59
40.48 .78
1.0 36.5
35.75 .95 41.5
40.75
.96| 46.5
1.2
36.8
43.08 1.13 41.8
1.4
37.1
50.47 1.31 42.1
1.6
37.4
57.92 1.49 42.4
1.8
37.7
65.43 1.66 42.7
49.08 1.14 46.8
57.47 1.32 47.1
65.92 1.50 47.4
74.43 1.67| 47.7
45.75 .96| 51.5
55.08 1.15| 51.8
64.47 1.33 52.1
73.92 1.51| 52.4
83.43 1.69 52.7
50.75 .97
61.08 1.15
71.47 1.34
2.0
38.0
73.00 1.83 43.0
2.2 38.3
80.63 1.99 43.3
2.4 38.6
88.32 2.15 43.6
2.6 38.9
96.07 2.31 43.9
2.8 39.2 103.88 2.47 44. 2
83.00 1.84 48.0
91.63 2.01 48.3
100.32 2.18 48.6
109.07 2.35 48.9
117.88 2.51 49.2
93.00 1.86 53.0
102.63 2.03 53.3
112.32 2.20] 53.6
122.07 2.37 53.9
131.88 2.54 54.2
81.92 1.52
92.43 1.70
103.00 1.87
113.63 2.05
124.32 2.22
135.07 2.39
145.88 2.56
eð eð er eð eð
39.5
111.75 2.63| 44.5|
126.75 2.67 49.5
39.8
40. 1
119.68 2.78| 44.8
127.67 2.93| 45.1
135.68 2.83 49.8
141.75 2.70 54.5
151.68 2.86 54.8
156.75 2.73
167.68 2.89
144.67 2.98 50.1
161.67 3.02 55.1
178.67 3.05
40.4
135.72 3.08 45.4
153.72 3.14 50. 4
171.72 3.18 55.4
189.72 3.22
40.7
143.83 3.23 45.7
162.83 3.29 50.7
181.83 3.34 55.7
200.83 3.38
4.0
41.0
4.2 41.3
4.4
41.6
152.00 3.38 46.0
160.23 3.52 46.3
168.52 3.66 46.6
172.00 3.44 51.0
181.23 3.59 51.3
190.52 3.74 51.6
4. 6
41.9
176.87 3.80 46.9
4.8
42.2 185.28 3.94 47.2
199.87 3.88 51.9
209.28 4.02| 52.2
5.0 42.5
5.2 42.8
•
5.4
43. 1
5,6
43.4
5.8 43.7
193.75 4.08 47.5
202.28 4.21 47.8
210.87 4.35 48.1
219.52 4.48|| 48. 4
228. 23 4. 61 48.7
218.75 4.17 52.5
228. 28 4.31 52.8
237.87 4.45 53.1
247.52 4.58 53.4
257.23 4.72 53.7
192.00 3.49 56.0
202.23 3. 64 56. 3
212.52 3.80 56.6
222.87 3.94 56.9
233.28 4.09 57.2
243.75 4.24 57.5
254. 28 4.38 57.8
264.87 4.53| 58.1
275.52 4.67| 58.4|
286.23 4.81 58.7
245.87 4.00
257.28 4.15
212.00 3.53
223.23 3.69
234.52 3.84
268.75 4.30
280.28 4.45
291.87 4.60
303.52 4.74
315. 23 4.89
6.0
44.0
6.2 44. 3
6.4
44. 6
6.6
44.9
237.00 4.74 49.0
245.83 4.87 49.3
254.72 4.99 49.6
263.67 5.12 49.9
267.00 4.85] 54.0
276.83 4.99 54.3
286.72 5.12 54.6
297.00 4.95 59.0
307.83 5.09 59.3
327.00 5.03
338.83 5.17
318.72 5.22 59, 6
350.72 5.31
296.67 5.25 54.9
6.8
45. 2
272.68 5.24 50.2
306.68 5.38 55.2
329.67 5.36 59.9
340.68 5.49 60.2
362.67 5.45
374.68 5.59
7.0
45. 5
281.75 5.37 50.5
7.5
46.2
304.68 5.67 51.2
8.0
47.0
328.00 5.96 52.0
8.5 47.7
9.0
48.5
351.68 6.25 52.7
375.75 6.53 53.5
316.75 5.51 55. 5
342. 18 5.82 56.2
368.00 6.13| 57.0
394. 18 6.44 57.7
420.75 6.73 58.5
351.75 5.63 60.5
379.68 5.96] 61.2
408.00 6.28 62.0
436.68 6.59 62.7
465.75 6.90 63.5
386.75 5.73
417.18 6.07
448.00 6.40
479.18 6.73
510.75 7.04
9.5 49.2
10.0 50.0
400. 18 6.81 54. 2
425.00 7.08 55.0
447.68 7.02] 59.2
475.00 7.31 60.0
495. 18 7.20 64.2
525.00 7.50 65.0
542.68 7.36
575.00 7.67
10.5 50.7
607.68 7.97
450. 18 7.35 55.7
555.18 7.79 65.7
502. 68 7.59 60.7
HYDRAULIC TABLES
107
Table 7.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾ to 1—Continued
and

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T Τ
A
T T
A
T
A
0.2
60. 3
0.4
60. 6
0.6
60.9
0.8
61. 2
1.0
61.5
1.2
61.8
1.4
62. 1
60.75 .97 71.5
73.08 1.16 71.8
85.47 1.35| 72.1|
1.6
62. 4
1.8
62.7
2.0
63.0
2.2
63.3
2.4 63.6
2.6 63.9
2.8 64.2
123.00 1.89 73.0
135.63 2.07] 73.3]
148.32|| 2. 25 73.6
161.07 2.42 73.9
173.88 2.60 74.2
143.00 1.91 83.0
157.63 2.09 83.3
172. 32 2.27 83. 6
187.07 2.45 83. 9
201.88 2.62 84.2
3.0
3.2 64.8
64.5
186.75 2.77 74. 5
3.4
65. 1
3.6 65. 4
3.8
65. 7
199.68 2.94 74.8
212.67 3. 10| 75. 1|
225.72 3.27 75.4
238.83 3.44 75.7
216.75 2.80 84. 5
231.68 2.97 84.8
246.67 3. 14 85. 1
261.72| 3.31 85.4
276.83 3.48| 85.7
4.0 66.0
4.2
66.3
4.4 66.6
252.00 3.60 76.0
265.23 3.76 76.3
278. 52 3.92 76.6
4.6 66.9
4.8
67.2
291.87 4.08 76.9
305. 28 4. 24
77.2
292.00 3.65 86. 0
307 23 3.82 86. 3
322.52 3.98 86.6
337.87 4.15 86.9
353.28 4.31 87. 2
5.0
67.5
5.2
67.8
5.4
68. 1
5.6
68.4
318.75 4. 40
332.28 4.55 77.8
345.87 4.71 78. 1|
359. 52 4.86 78.4
77.5
5.8
68.7
373. 23 5.01
78.7
6.0
69.0
6.2
69.3
6. 4
69.6
6.6
69.9
6.8
70.2
387.00] 5. 16
400.83 5.31 79. 3
414.72 5. 46
428.67 5.60 79.9
442.68 5.75 80.2
79.0
79.6
7.0 70.5
7.5
71. 2
8.0 72.0
8.5 72.7
9.0 73.5
9.5 74.2
10.0 75.0
12.03 0.20 70.3
24.12.40| 70.6|
36. 27 59 70.9
48. 48 .78 71.2
97.92 1.53| 72.4|
110. 43 1.71 72.7
456.75 5.891 80. 5)
492. 18 6. 25 81.2
528.00 6.60 82.0
564. 18 6.94 82.7
600.75 7.28 83.5
637.68 7.61 84.2
675.00 7.94 85.0
14.03 0.20 80.3]
28.12 .40 80.6
42.27.59 80.9
56.48.78 81.2
70.75 .98 81.5
85.08 1.17 81.8
99.47 1.35 82.1|
113. 92 1.54 82. 4
128.43 1.72 82.7|
368.75 4. 47 87.5
384. 28| 4. 63 87.8
399.87 4.79 88.1
415. 52 4.95 88.4
431.23 5. 10 88.7
447.00 5.26 89.0|
462.83 5.41 89.3
478.72 5.57| 89. 6|
494. 67| 5. 72】 89. 9
510.68 5.87 90. 2
526.75 6.02 90.5
567. 18 6.39| 91. 2
608.00 6.76| 92.0
649. 18 7. 11| 92. 7
690.75 7.47 93.5
732.68 7.82 94. 2
775.00 8.16 95. 0
16.03 0.20 90.3
32. 12.40 90.6
48.27 59 90.9
64. 48 .79 91.2
80.75
.98 91.5
97.08 1.17 91.8
113.47 1.36 92.1
129.92 1.55) 92. 4.
146.43 1.73 92.7
163.00 1.92] 93.0
179.63 2. 10
196. 32 2. 28
213. 07 2.46] 93.9
229.88 2.64 94.2)
246.75 2.82 94.5
263.68 3.00 94.8
280.67 3.17 95. 1
297.72 3.35 95.4
314.83| 3.52| 95.7
332.00 3.69 96.0
349.23 3.86 96.3
366.52 4.03] 96.6
383.87 4. 20 96.9
401.28 4.36| 97. 2
418.75 4.53 97.5
436.28 4.69 97.8
453.87 4.85 98. 1
471.52 5.02 98.4
489. 23 5. 18 98.7
239.07 2.48
257.88| 2.66
276.75 2.84
295. 68 3.02
314.67 3. 19
333. 72 3.37
352.83) 3.55
372.00 3.72
391.23 3.89
410. 52 4.06
527.52 5.07
547.23 5.24
567.00 5.40
507.00 5.34| 99.0|
524.83 5.50 99.3|| 586.83 5.56
542.72 5.65 99.6 606.72 5.72
560.67 5.81 99.9
578.68 5.97|100. 2)
596.75 6. 12100.5
642. 18 6. 50 101.2
688.00 6. 88 102. 0
734.18 7.25 102.7
780.75 7.62 103.5
666.75 6.20
717. 18 6.59
768.00 6.98
819. 18) 7.36
870.75 7.74
827.68 7.98 104.2 922.68 8.11
875.00 8.33 105.0 975.00 8.48
18.03 0.20
36.12 .40
54.27 .59
72.48.79
90.75 .98
109.08 1.17
127.47 1.36
145.92 1.55
164.43 1.74
183.00 1.93
93.3)
93. 6
201.63 2.11
220.32 2.30
429.87 4.24
449.28 4.40
468.75 4.57
488. 28 4.74
507.87 4.91
626.67 5.88
646.68 6.04
10,5 75.7
922.68 8.68105. 71, 027. 68| 8.84
712.68 8.26 85.7
817.68 8.50 95.7
108
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
Τ
A
*
Τ
A
до
T
A
0.2 100.3
20.03 0.20 110. 3
0.4 100.6
40.12.40|110.6
0.6 100.9
0.8 101. 2
60.27 .59 110.9
80.48.79 111. 2
66. 27
22.03 0.20|120.3
44. 12.40 120. 6
59 120.9
88.48
.79 121. 2
24.03 0.20 130.3
48.12.40 130. 6
72.27.59|130.9
96.48.79 131. 2
26.03 0.20
52.12
78.27 .60
104.48
.40
.79
1.0 101. 5
1.2 101.8
1,4 102. 1
100. 75
.98 111.5
110.75
.98 121.5
120.75
.99|131. 5
130.75
.99
1.6 102.4
1,8 102.7
121.08
141.47 1.37 112. 1
161.92 1.56112.4
182.43 1.75 112. 7
1.18 111. 8
133.08
1.18 121.8
145.08 1.18 131. 8
157.08 1. 18
155.47
1.37 122. 1
169.47 1.37 132. 1
183.47 1.37
177.92
1.56 122.4
193.92
1.56 132. 4
209.92 1.57
200.43 1.75|122. 7
218.43
1.75 132. 7
236.43 1.76
2.0 103.0
2.2 103.3
2.4 103.6
203.00 1.93 113. 0
223.63 2.12 113. 3
244. 32 2.30 113. 6
223.00 1.94123.0
243. 00]
1.94|133. 0
263.00 1.95
245.63
2.13 123. 3
267.63 2.13 133.3
289.63 2. 14
268.32
2.31 123. 6
292.32 2.32 133. 6
316.32 2.33
2.6 103.9
265.07 2.49 113. 9.
291.07
2.50 123. 9
317.07 2.51 133.9
343.07 2.51
2.8 104.2
285.88 2.67 114. 2
313.88
2.68 124. 2
341.88 2.69 134. 2
369.88 2.70
3.0 104.5 306.75 2.85114. 5
3.2 104.8 327.68 3.03114.8
336.75
2.87 124. 5
366.75 2.88 134. 5
396.75 2.89
359.68
3.05 124. 8
391.68 3.06 134.8
423.68 3.07
3.4 105.1
3.6105.4
3.8 105.7
348.67 3.21115. 1
369.72 3.39115. 4
390.83 3.57 115. 7
382.67 3.23|125. 1]
405.72
428.83
416.67 3.24[135. 1
450.67 3.25
3.41 125. 4
3.59 125.7
441.72 3.42|135. 4|
477.72 3.44
466.83 3.60 135. 7
504.83 3.62
4.0 106.0
4,2 106. 3
412.00 3.75 116. 0
433.23 3.92 116. 3
4.4 106.6
454.52 4.09 116. 6
4,6 106.9
475.87 4.27 116.9
4,8 107.2
497.28 4.44 117. 2
452.00 3.77126. 0
475.23 3.94 126. 3
498.52 4. 12|126. 6
521.87 4.30 126.9
545.28 4.47 127. 2
492.00 3.78 136. 0
517.23 3.96 136. 3
542. 52 4. 14 136. 6
567.87 4.32|136. 9|
593.28 4.49137. 2|
532.00 3.80
559.23 3.98
586.52 4.16
613. 87 4.34
641.28 4.52
5.0 107.5
5,2107.8
518.75 4.61117.5
5.4 108. 1
540.28 4.78 117.8
561.87 4.95 118. 1
583.52 5.12 118. 4
605, 23 5.29 118. 7
568.75 4.64127.5
592.28 4.82127. 8
615.87 4.99 128. 1
639.52 5. 16128. 4
663. 23 5.33 128. 7
618. 75
644. 28
687.00 5.50129.0
710,83 5.66129.3
734.72 5.83 129.6
758.67 6.00 129. 9
782.68 6.16130.2
5.6 108. 4
5.8 108.7
6.0 109.0
6.2109.3
6.4 109.6
6.6 109.9
6.8 110.2
7.0 110.5
7.5 111. 2
8.0 112.0
8.5 112.7
9.0 113. 5
627.00 5.45 119. 0|
648.83 5.62 119.3
670. 72 5.78 119. 6
692.67 5.95 119.9
714.68 6.11 120. 2
806.75 6.33130. 5 876.75
867.18 6.74 131. 2 942. 18
928.00 7.14|132. 01, 008. 00
989. 18 7. 54 132. 71, 074. 18
7.93 133. 51, 140. 75|
736.75 6.27 120. 5
792. 18 6.67 121. 2
848.00 7.07|122, 0]
904. 18 7. 46 122.7
960.75 7.84123. 5|1, 050. 75||
9.5 114. 21, 017. 68
10.0 115. 01, 075.00
8. 22124. 21, 112. 68
8.60 125. 01, 175.00
8. 32 134. 21, 207. 68
8.70 135. 01, 275. 00
6.38 140. 5
6.79 141. 21, 017. 18 6.84
7.20 142. 01, 088.00 7.25
7.60 142. 71, 159. 18 7. 66
8.01|143. 51, 230. 75 8.07
8. 40 144. 21, 302. 68 8.47
8. 79 145. 01, 375.00 8.87
4. 67|137. 5
4.84 137.8
669.87 5.02 138. 1
695.52 5.19 138. 4
721. 23 5.36 138. 7
668.75 4.69
696.28 4.87
747.00| 5.53|139.0
772.83 5.70 139.3
798.72 5.87|139. 6
824.67 6.04|139.9
723.87 5.04
751.525. 22
779.23 5.39
807.00 5.57
834.83 5.74
862.72 5.91
890.67 6.08
850.68 6. 21 140. 2
918.68 6.25
946.75 6.42
10.5 115. 71, 132. 68
9. 18145. 71, 447.68 9.27
8.97 125. 71, 237. 68
9.08 135. 71, 342. 68
HYDRAULIC TABLES
109
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued


Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth


T
A
T
A
T T
A
ཌ་
Τ
A
0.2 140.3
0.4 140.6
0.6 140.9
28.03
0.20 150.3
30.03
0.20 160.3
56. 12
.40 150.6
60. 12
.40 160. 6
32. 03 0.20 170.3
64. 12.40170.6
34.03 0.20
68.12 .40
84.27
.60 150.9
90.27
.60 160. 9
0.8 141.2
112. 48
.79 151. 2
120.48
79 161. 2
96. 27.60 170.9
128.48
102.27
.60
.79 171.2
136. 48
.79
1.0 141.5
140.75
.99 151.5
150.75
.99 161. 5
1.2 141.8
1.4 142. 1
1.6 142, 4
1.8 142.7
169.08
1.18 151.8
181.08
197.47
1.38 152. 1
211.47
1.18 161. 8)
1.38 162. 1
160.75 99 171.5
193.08 1.18171.8
225.47 1.38172. 1
170.75
.99
205.08 1.19
239.47 1.38
225.92 1.57 152. 4
254.43 1.76 152. 7
241.92 1.57|162. 4|
272.43 1.76 162.7
257.92 1.57 172.4
290.43 1. 77 172.7
273.92 1.57
308.43 1.77
2.0 143.0
283.00 1.95 153.0
2.2 143.3
311.63 2.14|153. 3
2.4 143.6 340.32 2.33 153. 6
2.6 143.9 369.07 2.52 153.9
303.00 1.95 163.0
333.63 2.15 163. 3
364. 32 2.34 163. 6
323.00 1.96 173.0
355.63
343.00 1.96
2.15 173. 3
377.63 2.15
388.32 2.34 173. 6
412.32 2.34
395.07
2.52163.9
421.07 2. 53 173. 9
447.07 2.53
2.8 144.2
397.88
2.71 154, 2
425.88
2.71 164. 2
453.88 2.72174.2
481.88 2,72
3.0 144. 5
3.2 144.8
3.4 145.1
3.6145.4
426.75 2.89 154. 5
455.68 3.08 154.8
484.67 3.26 155. 1
513. 72 3.45|155. 4|
456.75
2.90 164. 5
486.75 2.91174. 5
516.75 2.91
487.68
518. 67
3.09164. 8
3.27165. 1
519.68 3.09174.8
551.68 3.10
552.67 3.28 175. 1
586.67 3.29
3.8 145.7
542.83 3.63 155.7
549.72 3.46 165. 4
580.83 3.64 165. 7
585.72 3.47 175. 4
621.72 3.47
618.83 3.65 175.7
656.83 3.66
4.0 146.0
4.2 146.3 601.23 3. 99 156. 3
4.4 146.6 630.52 4.18 156. 6
4.6 146.9 659.87 4.36 156.9
4.8 147.2 689.28 4.53 157.2
572.00 3.81 156.0
5.0 147.5 718.75 4.71|157.5
5.2 147.8 748.28 4.89 157.8
5.4 148.1 777.87 5.07 158. 1
5.6 148.4 807.52 5.24 158.4
5.8 148.7 837.23 5.42|158. 7
612. 00| 3.83|166. 0
643. 23 4.01 166. 3
674.52 4. 19 166. 6
705.87 4.37|166. 9|
737.28 4. 55|167. 2
768.75 4.73 167. 5
800.28 4.91167.8
831.87 5.09 168. 1
863. 52|| 5. 27168. 4
895. 23 5.44|168.7
652.00 3.84176.0
685. 23 4.02 176.3
718.52 4.20 176. 6
751.87 4.38 176.9
785. 28 4.57 177.2
818.75 4.75 177.5
852. 28 4.93177.8
885.87 5.11 178.1
919. 52. 5. 28178. 4
953. 23 5.46178. 71, 011. 23 5.48
927.00 5.62169.0 987.00
958.83 5.79 169. 31, 020. 83
990.72 5.97 169. 6/1, 054. 72
6.11 159. 91, 022. 67 6. 14169. 91, 088.67
6.28 160. 21, 054.68 6. 32 170. 21, 122.68
6.0 149.0 867.00 5.59 159.0
6.2 149,3 896.83 5.77 159. 3
6.4 149.6 926.72 5.94 159.6
6.6 149.9 956.67
6.8 150.2 986. 68
7.0 150. 51, 016. 75|
7.5 151. 21, 092. 18
8.0 152. 01, 168. 00
8.5 152.71, 244. 18
9.0 153. 51, 320. 75
9.5 154. 21, 397. 68
10.0 155. 01, 475. 00
6. 46|160. 51, 086. 75|
6. 88 161, 21, 167. 18
7.30 162. 01, 248. 00
7.72 162. 71, 329. 18
8. 13 163. 51, 410. 75
8. 54 164. 21, 492. 68
8. 94165. 0|1, 575. 00|
6. 49 170. 51, 156. 75|
6.92 171. 21, 242. 18
7.34172. 01, 328. 00
7.76 172. 71, 414. 18
8. 18173. 51, 500. 75
8. 59174. 21, 587. 68
9.00|175. 01, 675. 00
5.64 179. 01, 047. 00
5. 82179. 31, 082.83
5.99 179. 61, 118. 72
6. 17 179. 91, 154. 67
6. 34|180. 21, 190.68
5.66
5.84
6. 01
6. 19
6.37
6. 52|180. 51, 226. 75 6.54
6. 95 181. 21, 317.18 6.98
7.38 182. 01, 408.00 7.41
7.80 182. 71, 499. 18 7.84
8. 22 183. 51, 590. 75 8.26
8. 64 184. 21, 682. 68 8.68
9. 05₤185. 01, 775. 00 9.10
692.00 3.84
727.23 4.03
762. 52 4.21
797.87 4.40
833.28 4.58
868.75 4.76
904.28 4.94
939.87 5.12
975.525.30
10.5 155. 71,552. 68|
· 71,
9. 52
9. 34 165. 71, 657. 68
9. 46 185. 71, 867. 68
9. 41 175. 71, 762. 68|
||175.
110
HYDRAULIC TABLES
Table 7.-
7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾ to 1-
Bottom width
180 feet
Continued

Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
Τ
A
T
T
A
↑
0.2
180.3
36.03
0.20
190. 3
38.03
0.20
200. 3
40. 03
0.20
0.4
180.6
72. 12
.40
190.6
76. 12
.40
200.6
80.12
0.6
180.9
.40
108. 27
.60
190.9
114. 27
.60
200.9
120.27
0.8
.60
181. 2
144. 48
.79
191.2
152.48
.79
201.2
160. 48
.79
1.0
181.5
180. 75
.99 191.5
190.75
.99
201.5
200.75
.99
1.2
181. 8
217.08
1. 19
191.8
229.08
1.19 201.8
241.08
1. 19
1.4
182.1
253. 47
1.38
192.1
267.47 1.38
202.1
281.47
1.6
1.38
182.4
289.92
1.58
192. 4
305.92
1.58
202.4
321.92
1.8
1. 58
182.7
326. 43
1.77
192.7
344. 43
1.77
202.7
362.43
1.77
2.0
183.0
363.00
1.96
193.0
383.00
1.96
203.0
403.00
1.97
2.2
183.3
399.63
2. 15
193.3
421.63
2. 16
203.3
2.4
443. 63
2.16
183.6
436. 32
2.35
193. 6
460. 32
2.35
203. 6
2.6
484.32
2.35
183.9
473. 07
2.54
193.9
499.07
2.54
203.9
525. 07
2.8
2.54
184. 2
509.88
2.73
194. 2
537.88
2.73
204. 2
565.88
2.73
3.0
184. 5
546. 75
2.92
194.5
576.75
2.92
204.5
606. 75
3.2
2.92
184.8
583.68
3.10 194.8
615. 68
3. 11
204.8
647.68
3. 11
3.4
185, 1
620. 67
3.29
195.1
654. 67
3.30
205. 1
3.6
688.67
3.30
185. 4
657. 72
3.48
195.4
693. 72
3.49
205. 4
3.8
729.72
3.49
185.7
694.83
3.67
195.7
732.83
3. 67
205.7
770.83
3.68
4.0
186.0
732.00
3.85
196.0
772.00
3.86
206.0
812.00
3.87
4.2
186.3
769.23
4.04
196.3
811. 23
4. 05
206.3
4.4
853. 23
4.05
186. 6
806.52
4. 22
196. 6
850.52
4. 23
206. 6
894.52
4.6
4. 24
186.9
843.87
4. 41
196.9
889.87
4. 42
206.9
935.87
4.8 187.2
4. 42
881.28
4.59
197.2
929. 28
4.60
207.2
977. 28
4. 61
5.0
187.5
918. 75
4.77
197.5
968.75
4.78
207. 5
5.2
187.8
1, 018. 75
4.79
956. 28
4.95
197.8
1,008. 28
4.97
207.8
5.4
188. 1
1,060. 28|
4.98
993. 87
5. 14
198. 1 1, 047.87
5. 15
5.6
208. 1
188.4 1,031. 52
1, 101. 87
5. 16
5.32
198.4 1,087. 52
5.33
5.8
208. 4
188.7 1, 069. 23
1, 143, 52
5.34
5.50
198.7 1, 127. 23
5.51
208.7 1, 185. 23
5.53
6.0
189. 0 1, 107. 00
5.68
199. 0 1, 167.00
5.69
6.2
189.3 1, 144. 83
209. 0 1,227. 00
5.71
5.86
199.3 1, 206. 83
5.87
6.4
189.6 1, 182. 72
209. 31, 268. 83)
5.89
6.03
199. 6 1, 246. 72
6.05
6.6
189.9 1, 220. 67
209.6 1,
209. 6 1, 310. 72
6.07
6. 21
,
199.9 1,286, 67
6. 23
6.8
209.9 1, 352. 67)
6. 25
190. 2
1, 258. 68
6.39
200. 2 1, 326. 68
6.41
,
210. 21, 394. 68
6.43
7.0
190. 5
1, 296. 75
6.57
200. 5
1, 366. 75
6.59
7.5
191. 2
1, 392. 18
210.5 1, 436. 75
6.61
7.00
201. 2
1, 467. 18
7.03
8.0
192. 0 1,488.00
211. 2
1, 542. 18
7.05
7.44
202. 0
1,568.00
7.47
212. 0
8.5
192.7 1, 584. 18
1,648. 00
7.49
7.87
202.7 1, 669. 18
7.90
9.0
193. 5 1, 680. 75
212.7 1, 754. 18
7.93
8.30
203.5 1, 770. 75
8.33
213.5 1, 860. 75
8.36
9.5
194. 2 1, 777. 68
8.72
204.2| 1, 872. 68]
8.76
10.0
195.0 1,875.00
214. 2 1, 967. 68
8.79
9.15
205. 0 1,975. 00
9.19
215. 02, 075. 00
9.22
10.5 195.7 1, 972. 68
9.65
9.56
215.7 2, 182. 68
205.72, 077. 68
9.61
HYDRAULIC TABLES
111
T, and
Table 7.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
A
до
ཌ༥
T
A
T
· A
T
11
18.5
12 20.0
13 21.5
14
23.0
112.75 3.82❘ 19.5
132.00 4.13| 21.0
152.75 4. 43 22.5
175.00 4.73 24.0
123.75 4.06 20.5
144.00 4.36 22.0
165.75 4. 67 23.5
189.00 4.97 25.0
134.75 4.28 21.5
156.00 4.59 23.0
145.75 4. 48
168.00 4.80
178.75 4.90 24.5
191.75 5.11
203.00 5.21| 26.0
217.00 5.43
29-02 22234 22222 AH*** *8*** ***** *****
15
24.5
18
17 27.5
29.0
19
30.5
198.75 5.03 25.5
16 26.0 224.00 5.33] 27.0
250.75 5.63| 28.5
279.00 5.94| 30.0
308.75 6.24 31.5
213.75 5.28 26.5
240.00 5.58 28.0
267.75 5.88 29.5
297.00 6.19 31.0
327.75 6.49 32.5
228.75 5.51 27.5
243.75 5.74
256.00 5.82 29.0
272.00 6.04
284.75 6. 12| 30.5|
315.00 6.43 32.0
346.75 6.73 33.5
301.75 6.35
333.00 6.66
365.75 6.97
20
32.0
21
340.00 6.54 33.0
33.5 372.75 6.84 34.5
35.0
407.00 7.14 36.0
36.5 442.75 7.44 37.5
38.0 480.00 7.74 39.0
360.00 6.79 34.0
393.75 7.09 35.5
429.00 7.40 37.0
465.75 7.70 38.5
504.00 8.00 40.0
380.00 7.04 35.0
414.75 7.34 36.5
451.00 7.64 38.0
488.75 7.95 39.5
528.00 8.25 41.0
400.00 7.27
435.75 7.58
473.00 7.88
511.75 8.19
552.00 8.49
25
26
41.0
39.5 518.75 8.04 40. 5|
559.00 8.34 42.0
27
28
44.0
42.5 600.75 8.64 43. 5
644.00 8.94 45.0
543.75 8.30 41.5
585.00 8.60 43.0
627.75 8.90 44.5
672.00 9.21 46.0
568.75 8.55 42.5
611.00 8.86 44.0
654.75 9.16 45.5
700.00 9.46 47.0
593.75 8.80
637.00 9.10
681.75 9.40
728.00 9.71
47.0
29 45.5 688.75 9.24 46.5
30
31 48.5 782.75 9.85 49.5
717.75 9.51 47.5
746.75 9.76 48. 5
775.75 10.01
735.00 9.55 48.0
32
33
50.0 832.00 10. 15
51.5 882.75 10.45
34 53.0 935.00 10.75
51.0
52.5
54.0
765.00 9.81 49.0
813.75 10. 11
864.00 10.41
915. 75 10.71
969.00 11.01
795.00 10.06
50.0
825.00 10. 31
35
37
54.5
988.75 11.05
36 56. 01, 044.00 11. 35
57. 51, 100. 7511. 65
59. 01, 159.00 11.95
60. 51, 218. 75 12. 25
38
39
41
40 62. 01, 280.00 12. 55
63. 51, 342. 75 12. 85
42 65. 01, 407.00 13. 15
66. 51, 472.75 13. 45
68.01, 540.00 13.75
43
44
46
47
45 69. 51, 608.75 14. 05
71.01, 679. 00 14. 35
72. 51, 750. 75 14. 65
48 74. 01, 824. 00 14. 95
49 75. 51, 898. 75|15. 25
55. 51, 023. 75|11. 31
57.01, 080.00 11. 61
58. 51, 137. 75 11.91
60. 01, 197.00 12. 21||
61. 51, 257. 75 12. 51
63. 01, 320.00 12. 82
64. 51, 383. 75 13. 12
66. 01, 449. 00 13. 42
67. 51, 515. 75 13. 72
69. 01, 584. 00 14. 02
70. 51, 653. 75 14. 32
72. 01, 725. 00 14. 62
73. 51, 797. 75 14. 92
75. 01, 872. 00 15. 22
76. 51, 947. 75 15. 52
50.5
52.0 896.00 10. 67
53.5 948.75 10.97
55. 01, 003. 00 11. 27
56. 51, 058.75 11.57
58. 01, 116.00 11.87
59. 51, 174. 75 12. 17|
61.01, 235. 00 12. 47
62. 51, 296. 75 12. 78
64. 01, 360.00 13. 08
65. 51, 424. 75 13. 38
67.01, 491.00 13. 68
68. 51, 558. 75 13. 98
70.01, 628. 00|14. 28||
71. 51, 698. 75 14. 58
73. 01, 771.00 14. 88
74. 51, 844. 7515. 18|
76.01, 920. 00 15. 48
77. 51, 996. 7515. 78||
53.0
54. 5 981.75 11. 22
56. 01, 037.00 11.52
57. 51, 093. 7511.82
59. 01, 152. 00 12. 13
60. 51, 211. 75 12. 43
62. 01, 273. 00|12. 73
63. 51, 335. 75 13. 03
65. 01, 400.00 13. 33
66. 51, 465. 75 13. 63
68. 01, 533.00 13. 94
69. 51, 601. 75 14. 24
71.0|1, 672. 00|14. 54
72. 51, 743. 75 14. 84
74. 01, 817.00 15. 14
75. 51, 891. 75 15. 44
77.01, 968. 00 15. 74
78. 52, 045. 7516. 05
844. 75 10. 37
51.5
875.75 10. 62
928.00 10.92
50 77.01, 975.00 15. 55
79. 02, 075.00 16.09|| 80.0|2, 125.00 16. 35
78. 02, 025. 00 15. 82
112
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
¾
side slopes 34 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
A
T
A
T
T
A
T
A
T
11
13
14
16
17
23
24
==== BRI*2 272*
2222
22.5
12
27.0
156.75 4.68 23.5
24.0 180.00 5.00 25.0
25.5 204.75 5.32 26.5
231.00 5.63 28.0
167.75 4.86 24.5
192.00 5.19 26.0
217.75 5.51 27.5
245.00 5.83 29.0
178.75 5.04 25.5
204.00 5.37 27.0
230.75 5.70 28.5
259.00 6.02 30.0
189.75 5. 20
216.00 5.54
243.75 5.87
273.00 6. 20
15 28.5
30. 0
31.5
258.75 5.95 29.5
288.00 6.26 31.0
318.75 6.57 32.5
18 33.0 351.00 6.88 34. 0
19 34.5 384.75 7.19 35.5
273.75 6. 15 30.5
304.00 6.47 32.0
335.75 6.78 33.5
369.00 7.10 35.0
403.75 7.41 36.5
288.75 6.35 31.5
320.00] 6.67) 33.0
352.75 6.99 34.5
387.00 7.30 36.0
422.75 7.62 37.5
303.75 6.53
336.00 6.86
369.75 7. 18
405.00 7.50
441.75 7.82
42.0
20 36.0 420.00 7.50 37.0
21 37.5 456.75 7.81 38.5
39.0 495.00 8.11 40.0
40.5 534.75 8.42 41.5.
576.00 8.73 43.0
440.00 7.72) 38. 0|
477.75 8.03 39.5
517.00] 8.34] 41. 0
557.75 8.65 42.5
600.00 8.96 44.0
460.00 7.93| 39.0|
498.75 8.24 40.5
539.00 8.56| 42.0
580.75 8.87 43.5
624.00 9.18 45.0
480.00 8.14
519.75 8.45
561.00 8.77
603.75 9.08
648.00 9.39
26
27
28
29
30
31
32
33
35
*REAR A 18508 20*** ****3 A
25 43.5 618.75 9.03 44. 5
45.0
46. 5
663.00 9.34 46. 0
708.75 9.64 47.5
48.0
756.00 9.95 49.0
49.5
804.75 10. 25 50. 5
643.75 9.26 45.5
689.00 9.57 47.0
735.75 9.88 48.5
784.00 10. 18 50.0
833. 75 10.49 51.5
668.75 9.49 46.5
715.00 9.79 48.0
762.75 10. 10
812.00 10. 41
862.75 10.72
693.75) 9.70
741.00 10. 01
49.5
789.75 10. 32
51.0
840. 00|10. 63
52.5
891.75 10.94
51.0
855.00 10.56
52.0
52.5
54.0
53.5
55.0
34
55. 51, 014. 75 11. 47
57. 01, 071. 00 11. 77
36
37
38
39
40
41
42
43
44
45
46
47
48
49
906.75 10.86
960.00 11.16
58. 51, 128.75 12. 07
60. 01, 188.00 12. 38
61. 51, 248. 7512. 68||
63. 01, 311. 00 12.98
64. 51, 374. 75 13. 28
66. 01, 440. 00 13. 58
67. 51, 506. 75 13.89
69. 01, 575.00 14. 19
70. 51, 644.75 14. 49
72.01, 716.00 14.79
73. 51, 788. 75 15.09
75. 01, 863.00 15. 40
76. 51, 938.75 15. 70
78. 02, 016. 0016. 00
79. 52,094. 75|16. 30||
885. 0010. 79|
937. 75 11. 10
992.00 11. 40
56. 51, 047. 75 11. 71
58. 01, 105. 00 12. 01
59. 51, 163. 75 12. 31
61. 01, 224. 00 12. 62
62. 51, 285. 75 12. 92
64. 01, 349. 00|13. 23||
65. 51, 413. 75 13. 53
་
67.01, 480.00 13. 83
68. 51, 547. 75 14. 13
70. 01, 617. 0014. 44
71. 51, 687. 75 14. 74
73.01, 760. 0015. 04
74. 51, 833. 75 15. 35
76. 01, 909. 00 15. 65
0015.
77. 51, 985. 75 15. 95
79. 02, 064. 0016. 25
80. 52, 143. 75|16. 55
50 81.02, 175.00 16. 60 82. 02, 225.00 16. 86
53.0| 915. 0011. 02
54.5 968. 75 11. 33
56. 01, 024. 00 11. 64
57. 51, 080. 75 11. 94
59. 01, 139. 00 12. 25
60. 51, 198. 75 12. 55
62. 01, 260.00 12. 86
63. 51, 322. 75 13. 16
65. 01, 387. 00|13. 47
66. 51, 452. 75|13. 77
945.00 11. 25
999.75 11. 56
57. 01, 056. 00 11. 87
58. 51, 113. 75 12. 17
60. 01, 173. 00 12. 48
61. 51, 233. 75 12. 78
63.01, 296. 00 13. 09
64. 51, 359. 75 13. 40
66. 01, 425. 00 13. 70
67. 51, 491. 75 14. 01
1
69. 01, 560. 00 14. 31
70. 51, 629. 75 14. 62
72. 01, 701. 00 14. 92
73. 51, 773. 75 15. 23
75. 01, 848. 00 15. 53
0015. 75.01,
68. 01, 520. 0014. 07
69. 51, 588. 7514. 38
71.01, 659. 00 14. 68
72. 51, 730. 75 14. 98
74. 01, 804. 00 15. 29
75. 51, 878. 75|15. 59
77.01, 955. 00 15.89
78. 52, 032. 75 16. 20
80. 02, 112.00 16. 50
81. 52, 192. 75|16. 80
83.02, 275.00 17. 11
76. 51, 923. 75 15. 83
78. 02, 001.00 16. 14
79. 52, 079. 7516. 44
81. 02, 160. 00 16. 74
82. 52, 241. 75 17. 05
84. 02, 325. 00 17. 35
54.0
55.5
HYDRAULIC TABLES
113
Table 7.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued
T, and

378.75 7.35 38.5
416.00 7.70 40.0
454.75 8. C5 41. 5
495.00 8.39 43.0
536.75 8.73 44.5
Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
-
Τ
A
T
Α
T
A
H231
11
26.5
200.75 5.35. 28. 5
28.0
228.00 5.70 30.0
29.5
256.75 6.04 31.5
14 31.0
287.00 6.38 33. 0
222.75 5.64| 30.5
252.00 6.00] 32.0
282.75 6.35 33. 5,
315.00 6.70 35.0
244.75 5.90) 32.5
276.00 6. 27 34.0
308.75 6.64 35.5
266.75 6.13
300.00 6.52
334.75 6.90
343.00 7.00 37. 0
371.00 7.27
15 32.5
16 34.0
318.75 6.71 34.5
348.75 7.05 36.5
408.75 7.64
352.00 7.04 36.0
17
35.5
18
37.0
19 38.5
386.75 7.37 37.5
423.00 7.69 39.0
460.75 8.01 40. 5
384.00 7.38 38.0
420.75 7.72 39.5
459.00 8.05] 41.0
498.75 8.38 42.5
448.00 8.00
488.75 8.35
531. 00 8.70
574.75 9.05
20
40.0
500.00 8.33| 42. 0
21
41.5
22 43.0
23 44.5
24 46.0
540.75 8.65 43.5
583.00 8.97 45.0
626.75 9. 29 46.5
672.00 9.60 48.0
540.00 8.71 44.0
582.75 9.03 45.5
627.00 9.36| 47.0
672.75 9.68 48.5
720.00 10.00 50.0
52.0
620.00 9.39
666.75 9.73
715.00 10. 07
764. 75 10. 40
816. 0010. 74
25
47.5
718.75 9.91 49.5
768. 75 10. 32
51.5
53.5
868. 75 11. 07
26
49.0
767.00 10. 23
51.0
819.00 10. 64
819.00 10. 64
53.0
53.0
27
50.5
816.75 10. 54
52. 5
28
52.0
29
53.5
868.00 10.85
920.75 11. 16
54.0
55. 5
870.75 10.95
924.00 11. 27
978.75 11. 58
54.5
30
55.0
31
32
975.00 11. 47
56. 51, 030.75 11. 78
58. 01, 088.00 12. 09
33 59. 51, 146. 75 12. 40
34 61. 01, 207. 00|12. 71]
"
35
36
37
38
39
41
42
62. 51, 268.75 13. 01
64. 01, 332. 00 13. 32
65. 51, 396. 75 13. 63
67. 01, 463.00 13. 93
68. 51, 530. 7514. 24
40 | 70. 01, 600. 00 14. 55
71. 51, 670. 75|14. 85
73. 01, 743. 0015. 16
74. 51, 816. 75 15. 46||
44 76. 01, 892. 00 15. 77
43
45
77. 51, 968. 75 16. 07
46 79. 02, 047.00 16. 38
4780. 52, 126. 75|16, 68|
82. 02, 208. 00 16. 98
83. 52, 290. 7517. 29||
48
49
57. 01, 035. 0011. 90
58. 51, 092. 75 12. 21
60. 01, 152. 0012. 52
61. 51, 212. 75 12. 83
63. 01, 275. 00|13. 14|
64. 51, 338. 75 13. 45|
66. 01, 404. 00 13. 76
67. 51, 470. 7514. 07
69. 01, 539. 00 14. 38
70. 51, 608. 7514. 69
72. 01, 680. 00 15. 00
73. 51, 752. 75 15. 31
75. 01, 827. 00|15. 62
76. 51, 902. 75|15. 92
78. 0|1, 980. 00|16. 23|
79. 52, 058. 75|16. 54
81.02, 139. 0016. 84
82. 52, 220. 75 17. 15
84. 02, 304. 0017. 45
85. 52, 388. 75|17. 76
580.00 9.06 46.0
624. 75 9.39 47.5
671.00 9.72| 49.0|
718.75 10. 05 50.5
768.00 10. 38
818.75 10. 70
871.00 11.03| 55.0 923.00 11. 40
924. 75 11. 35 56.5 978. 75 11. 72
56.0 980.00|11. 67| 58. 0|1, 036. 00|12. 05
57. 51, 036. 75 11. 99 59. 5 1, 094. 75 12. 37
59. 01, 095.00 12. 30
60. 51, 154. 75 12. 62
62. 01, 216. 00 12. 94
63. 51, 278. 75 13. 25
65. 01, 343. 00 13. 57
66. 51, 408. 75 13. 88|
68. 01, 476. 00 14. 19
69. 51, 544. 7514. 50
71. 01, 615. 00 14. 82
72. 51, 686. 7515. 13
74. 01, 760. 00 15. 44
75. 51, 834. 7515. 75
77. 01, 911. 00|16. 06|
78. 51, 988. 75 16. 37
80. 02, 068. 00|16. 68|
81. 52, 148. 75 16. 99
83. 02, 231. 0017. 29
84. 52, 314. 75|17. 60|
86. 02, 400. 0017. 91
87. 52, 486. 75|18. 22|
61.01, 155.00 12.69
62. 51, 216. 75 13. 01
64. 01, 280.00 13. 33
65. 51, 344. 75 13. 65
67. 01, 411. 00 13. 97
68. 51, 478. 75 14. 29
70. 01, 548. 00 14. 60
71. 51, 618. 75 14. 92
73.01, 691. 00 15. 23
74. 51, 764. 75|15. 55
76. 01, 840. 0015. 86
77. 51, 916. 75 16. 18
79.0|1, 995. 00/16. 49
80.52, 074. 7516. 80
82. 02, 156. 0017. 11
83. 52, 238. 7517. 42
85.0|2, 323. 00 17. 73
86. 52, 408. 75 18. 04
88. 02, 496. 00 18. 35
89. 5|2, 584. 75|18. 66
50 85. 02, 375.00 17. 59
91.02, 675.00 18. 97
87. 02, 475. 0018. 07
89. 02, 575. 00|18. 53
114
HYDRAULIC TABLES
in feet,
feet, T, and
Table 7.-Area in square feet, A, top width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3/4 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T
A
Τ
A
T T
A
20
21
24
25
26
27
28
==== -9222 2283* *8*38 6-28- 0533 90*** *95*3 8
11
34.5
12 36.0
288.75 6. 35 36.5
324.00 6.75 38. 0
14
39.0
13 37.5 360.75 7.14 39. 5
399.00| 7.53| 41. 0
310. 75 6. 54] 38.5
348.00 6.96 40.0
386.75 7.37 41.5
427.00 7.76 43.0
15 40.5
16 42.0
43.5
45.0
438.75 7.91| 42.5
480.00] 8.28| 44. 0
19 46.5
522. 75 8.64] 45.5
567.00 9.00 47.0
612.75 9.35 48.5
48.0
49.5
660.00 9.71 50.0)
708. 75 10.05] 51.5]
51.0
759.00 10. 40
53.0
52.5
810. 75 10. 74
54, 5
54.0
864.00 11.081
56.0
700.00 10.00 52.0
750.75 10.36 53.5
803.00 10.71| 55.0|
856. 75 11.05 56.5
912.00 11.40 58.0
55. 5
29
30
72. 51, 618. 75 15. 06
74. 01, 692. 00|15. 38
75. 51, 766. 75 15. 70
77.01, 843. 00 16. 03
78. 51, 920. 75|16. 35
40
41
42
43
44
78.01, 920.00 16. 27
79. 51, 998. 75|16. 59
81. 02, 079. 00|16. 90|
82. 52, 160. 7517. 22
84. 02, 244. 0017. 53
45
31
32
33
34
35
36
37
38
57.0
918. 75 11. 41
975.00 11.75
58. 51, 032. 75 12.08
60. 01, 092.00 12. 41
61. 51, 152. 75 12. 74||
63. 01, 215. 00|13. 06]
64. 51, 278. 75 13. 39
66. 01, 344. 00 13. 71
67. 51, 410. 75 14.04
69. 01, 479. 0014. 36
70. 51, 548. 75 14. 68
72. 01, 620. 0015. 00
73. 51, 692. 75 15. 32
75. 01, 767.00 15. 64
76. 51, 842. 75 15.95
468.75 8.15 44.5
512.00 8.53 46.0
556. 75 8.91 47.5
603.00 9.28 49.0
650.75 9.64] 50.5
57 5
59. 01, 027. 00 12. 08
60. 51, 086. 75 12. 42
62. 01, 148. 00 12. 76
63. 51, 210. 75 13. 09
968.75 11. 74
65. 0|1, 275. 00 13. 42
66. 51, 340. 75 13. 75
68. 01, 408. 0014. 08
69. 51, 476. 75 14. 41|
71. 01, 547. 00 14. 73]
80. 02, 000.00 16. 67|
81. 52, 080. 75|16. 99
83. 02, 163. 00 17. 30|
84. 52, 246. 75 17. 62
86. 02, 332. 00 17. 94
85. 52, 328.75 17.84 87. 52, 418. 75 18. 25
46 87. 02, 415. 00|18. 16 89.02, 507.00 18. 57
88. 52, 502. 75 18. 47 90. 52, 596. 75 18. 89
90.02, 592.00 18. 78 92. 02, 688. 00 19. 20
00|18. 00|19.
91. 52, 682. 7519. 09|| 93. 52, 780. 75 19. 51
93. 02, 775.00 19. 41
48
49
95. 02, 875. 00 19. 83
332.75 6.72 40.5
332.75 6.72 40.5
372.00 7.15 42.0
412.75 7.57 43.5
455.00 7.98 45.0
498.75 8.38 46. 5
544.00 8.77 48.0
590.75 9. 16 49.5
639.00 9.54|| 51.0
688.75 9.91 52. 5
354.75 6.89
396.00 7.33
438.75 7.77
483.00 8.19
740.00 10. 281 54.0 780.00 10.54
792.75 10.64 55. 5 834. 75 10.91
847.00 11.00 57.0 891.00 11. 28
902. 75 11. 36| 58.5| 948. 75 11. 64
960.00 11. 71 60. 01, 008. 00 12.00
59. 51, 018. 75 12. 06
61. 01, 079. 00|12. 40|
62. 51, 140. 75|12. 75|
64. 01, 204. 00 13. 09
65. 51, 268. 75 13. 43
67.01, 335. 00 13. 76
68. 51, 402. 75 14. 10
70. 01, 472. 00 14. 43
71. 51, 542. 75 14. 76|
73. 01, 615. 00|15. 09
74. 51, 688. 7515. 42
76. 01, 764. 0015. 75
77. 51, 840. 7516. 08
79. 01, 919. 00 16. 40
80. 51, 998. 75 16. 73
82. 02, 080.00 17.05
83. 52, 162. 75|17. 37
85. 02, 247. 0017. 69
86. 52, 332. 7518. 01
88. 02, 420.00 18. 33
89. 52, 508. 7518. 65
91.02, 599. 0018. 97
92. 52, 690. 7519. 29
94. 02, 784. 0019. 61
95. 52, 878. 7519. 92
97. 02, 975.00 20. 24
61. 51, 068. 75 12. 36
63. 0|1, 131. 00|12. 71
64. 51, 194. 75|13. 06
66. 01, 260. 00 13. 40
67. 51, 326. 75 13. 75
69. 01, 395.00 14. 09
70. 51, 464. 75 14. 43
72. 01, 536. 00 14. 77
73. 51, 608. 75 15. 11
75. 01, 683. 00|15. 44
76. 51, 758. 7515. 77
78. 01, 836. 0016. 11
79. 51, 914. 75 16. 44
81.01, 995.00 16. 76
82. 52, 076. 75 17. 09
84.02, 160. 00 17. 42
85. 52, 244. 75|17. 75
87.02, 331. 00 18. 07
88. 52, 418. 75 18. 39
90. 02, 508.00 18. 72
91. 52, 598. 75 19. 04
93.02, 691, 0019. 36
94. 52, 784, 7519. 68
96. 02, 880.00 20. 00
96.02, 20.00
97. 52, 976. 75 20. 32
99. 03, 075, 00|20. 64
02,875.00 075.00
528.75 8.60
576.00 9.00
624.75 9.39
675.00 9.78
726.75 10. 16
HYDRAULIC TABLES
115
Table 7.-Area in square feet, A, top width in feet, T, and
width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

420.75 7.32 48. 5|
468.00 7.80 50.0
516.75 8.27| 51,5
567.00 8.72 53.0
618.75 9.17| 54.5
672.00 9.60 56.0
726.75 10.02】 57.5]
783.00 10. 44| 59.0|
840.75 10.85 60.5
་
Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
4
↑ T
Α
Τ
A
T T
A
11 42.5
12 44.0
13 45.5
14
47.0
376.75 7.04 44. 5
420.00 7.50 46.0
464.75 7.94 47.5
511.00 8.38| 49.0
398.75 7.18 46.5
444.00 7.66 48.0
490.75 8.11| 49.5
539.00 8.56 51.0
15
48.5
558.75 8.80 50.5
16
50.0
608.00 9.21 52.0
17 51.5
658.75 9.62 53.5
18
53.0
19
54.5
711.00 10.01 55.0
764. 75 10.40 56.5
442.75 7.44
492.00 7.94
542.75 8.41
595.00 8.88
648.75 9.33
704.00 9.78
760.75 10. 2
819.00 10.64
878.75 11.05
20 56.0
21
57.5
22
59.0
23
60.5
24
25
26
59.5
61.0
820.00 10.79| 58.0
876. 75 11. 17
935.00 11.54
994. 75 11.91
62. 01, 056. 00 12. 28||
63. 51, 118. 75 12. 64
65. 01, 183.00 13.00
27 66. 51, 248. 75 13. 36
68.01, 316.00 13.71
69. 51, 384. 75 14. 06
28
29
30
71. 01, 455.00 14. 41
31 72. 51, 526.75 14.75
32 74. 01, 600.00 15.09
75. 51, 674. 7515. 44
77.01, 751.00|15.77||
33
34
RRRRR A-88- 88-88 2-***
35
36
37
38
39
41
78. 51, 828.75 16. 11
80.01, 908.00 16. 45
81. 51, 988. 75 16. 78
83. 02, 071.00 17. 12
84. 52, 154. 75 17.45
40 86. 02, 240. 00 17.78
87.52, 326. 7518. 11
89.02, 415.00 18. 44
90. 52, 504. 75 18. 76
92. 02, 596.00 19.09
42
43
44
45
46
47
48
49
588.75 8.99 52.5
640.00 9.41 54.0
692.75 9.83 55.5
747.00|10.23|| 57.0|
802. 75 10.63 58.5
860.00 11.03
918. 75 11. 41
979.00 11.80
62. 51, 040. 75 12. 17
64. 01, 104. 00|12. 55|
65. 51, 168. 75 12. 91
67.01, 235.00|13. 28
68. 51, 302. 75 13. 64
70.01, 372. 00|14.00|
71. 51, 442. 75 14. 36|
73.01, 515.00 14. 71
74. 51, 588. 75 15. 06
76. 01, 664. 00 15. 41
77. 51, 740. 75|15. 75
79.0|1, 819. 00|16. 10|
80. 51, 898. 75 16. 44
82. 01, 980.00 16. 78
83. 52, 062. 75 17. 12
85.02, 147.00 17. 46
86. 52, 232. 75|17. 79|
88. 02, 320.00 18. 13|
89. 52, 408. 75 18. 46
91.02, 499.00 18.79
92. 52, 590. 75 19. 12
94. 02, 684.00 19. 45
95. 52, 778. 75|19. 78
97.02, 875.00 20. 10
60.0 900.00 11.25|
61.5 960.75 11.65
63.01, 023.00 12.04
64. 51, 086. 75 12. 42
66. 01, 152. 00 12. 80
67. 51, 218. 75 13. 18
69. 01, 287.00 13. 55
70. 51, 356. 75 13. 92
72.01, 428. 00 14. 28
73. 51, 500. 75 14. 64
75.01, 575.00 15.00
76. 51, 650. 75 15. 36
78.01, 728. 00 15. 71
79. 51, 806. 75|16. 06|
81.01, 887.00 16. 41
82. 51, 968. 75 16. 76
84.02, 052.00 17. 10
85. 52, 136. 75 17. 44
87.02, 223.00 17.78
88. 52, 310. 75 18. 12
90.02, 400. 00|18. 46|
91. 52, 490. 75 18. 80
93.02, 583.00 19. 13
94. 52, 676. 75 19. 47
96.02, 772.00 19.80
62.0| 940.00 11.46
63. 51, 002. 75 11.87
65.01, 067.00 12. 26
66. 51, 132. 75 12. 06
68. 01, 200.00 13. 04
69. 51, 268. 75 13. 43
71. 01, 339.00 13. 80
72. 51, 410. 75 14. 18
74. 01, 484. 00|14. 55
75. 51, 558. 75 14. 92
77.01, 635.00 15. 28
78. 51, 712. 75 15. 64
80. 01, 792. 00₤16. 00
81.5|1, 872. 75|16. 36
83. 01, 955. 00|16. 71
84. 52, 038. 75 17.06
86.02, 124. 00 17. 41
87. 52, 210. 75 17. 76
89. 02, 299. 00 18. 10
90. 52, 388. 75|18. 45
92.0|2, 480. 00|18. 79
93. 5|2, 572. 75 19. 13
95. 02, 667. 00 19. 47
96. 52, 762. 75 19. 80
98. 02, 860.00 20. 14
97. 52, 868. 75 20. 13 99.52, 958. 75 20. 48
99. 02, 967.00[20. 46|101. 03, 059.00 20.81
93. 52, 688.75|19. 41|
95. 02, 783.00 19.74
96. 52, 878. 75 20.06
98. 02, 976.00 20. 38100. 03, 072. 00[20. 76|102. 03, 168.00 21. 12/104. 03, 264. 00 21. 47
99. 53, 074. 75 20. 71|101. 53, 172. 75|21. 08|103. 53, 270. 75|21. 45 105. 53, 368. 75|21. 80
98. 52, 972. 75|20. 43₤100. 5|3, 066. 75|20. 79₤102. 5|3, 160. 75|21. 14
50 101.03, 175.00 21.03 103. 03, 275. 00 21. 41 105. 03, 375.00 21. 77 107. 03, 475. 00 22. 13
116
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾4 to 1—Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
T
A
T Τ
A
T
A
11
51.5
12
475.75 7.61 56. 5
53.0 · 528.00 8.12 58.0
13
54. 5
581.75 8.62 59.5
14
56.0
637.00 9.10.61.0
585.75 8.08 66.5
648.00 8.64] 68.0
711.75 9.18 69.5
777.00 9.71 71.0
640.75 8.27
708.00) 8.85
776.75 9.42
847.00 9.96
15
530.75 7.861 61.5
588.00 8.40] 63.0
646.75 8.92 64.5
707.00 9.43 66.0
768.75 9.92 67.5
832.00 10.40 69.0
896. 75 10.87 70.5
963.00 11.33 72. 01, 053.00 11. 70
68. 51, 030. 75 11. 78 73. 51, 125. 75 12. 17
57.5 693.75 9.57 62.5
16 59.0
17 60.5
752.00|10.03] 64. 0
811.75|10.47 65. 5
18 62.0 873.00 10.91 67.0
935.75 11.34
19
63.5
20
21
23
24
25
26
27
FREE 20202 8228* **AR SMSS* *---3 ******
પપ
28
29
30
31
32
33
34
35
36
37
38
39
40
41
43
70.01, 100.00 12.22
65. 01, 000.00 11.76
66. 51, 065. 75 12. 1871. 51, 170. 75 12. 66
68.01, 133.00 12. 59
69. 51, 201. 75 12. 99
71.01, 272.00 13. 39
72. 51, 343. 7513.78
74. 01, 417.00 14. 17
75. 51, 491. 7514. 55
77.01, 568. 0014. 93
78. 51, 645. 7515. 31
80. 01, 725. 0015. 68
81. 51, 805. 7516.05
83.01, 888.00 16. 42
84. 51, 971. 7516. 78
86.02, 057. 0017. 14
87. 52, 143. 7517.50
89.02, 232.00 17.86
90. 52, 321. 7518. 21
92. 02, 413.00 18.56
93. 52, 505. 7518. 91|
73.01, 243. 00 13. 08
74.51, 316.75 13. 51
76.01, 392. 00 13. 92
?
77.51, 468. 7514. 33
79. 01, 547.00 14. 73
80. 51, 626. 75 15. 13
82.01, 708. 00|15. 53]
83. 51, 790. 75 15.92
85. 01, 875. 0016. 30
86. 51, 960. 75 16. 69
88. 02, 048. 00 17. 07
89. 52, 136. 75 17. 44
91.02, 227.00 17.82
843.75 10.23】 72.5 918.75 10.50
912.00 10.73 74.0 992.00 11.02
981.75 11. 22 75. 51, 066. 7511. 53
77.01, 143.00 12. 03
78. 51, 220. 75 12. 52
75. 01, 200.00 12. 63
76. 51, 275. 75 13. 08
78. 01, 353.00 13. 53
79.51, 431. 75 13.97
81.01, 512. 00 14. 40
82. 51, 593. 75 14.83
84. 01, 677. 0015. 25
85. 51, 761. 7515. 66
87. 0|1, 848. 00|16. 07
88. 51, 935. 75 16. 47
90.02, 025.00 16.88
91. 52, 115.75 17.27
93. 02, 208.00 17.66
94. 52, 301. 75 18. 05
96. 02, 397.00 18. 44
80.01, 300.00 13.00
81. 51, 380. 75 13.47
83. 01, 463.00 13. 93
84. 51, 546. 75 14. 39
86. 01, 632.00 14. 84
,
87. 51, 718. 75 15. 28
89. 01, 807.00 15. 71
90. 51, 896. 75 16. 14
92. 01, 988.00 16. 57
93. 52, 080. 75 16.99
95. 02, 175.00 17.40
96. 52, 270. 7517.81
98. 02, 368. 00|18. 22
99. 52, 466. 75 18. 62
101. 02, 567.00 19.01
92. 52, 318. 75 18. 19 97. 52, 493. 7518. 82 102. 52, 668. 75 19. 41
94.02, 412.00 18. 55 99.02, 592.00 19. 20104. 02, 772.00 19. 80
95. 52, 506. 75 18. 92 100. 52, 691. 7519. 58105. 52, 876. 75 20. 19
97.02, 603. 00 19. 28 102. 02, 793. 0019. 95107. 02, 983. 00 20. 57
98. 52, 700. 75|19. 64103. 52, 895. 75|20. 32|108. 5|3, 090. 75 20. 95
95. 02, 600.00 19. 26 100.02, 800.00 20. 001.05. 03, 000. 00| 20. 69 110. 03, 200.00 21.33
96. 52, 695. 7519. 61 101. 52, 900. 75|20. 36/106. 53, 105. 7521. 06111. 53, 310. 75 21. 71
42 98. 02, 793. 00|19. 95|103. 03, 003. 00 20. 71|108. 03, 213.00 21. 42113. 03, 423. 00|22. 08
99. 52, 891. 75 20. 29 104. 53, 106. 75 21. 06109. 53, 321. 7521. 78114. 53, 536. 75 22. 46
44 101.02, 992.00 20. 63 106. 03, 212. 00 21. 41 111. 03, 432.00 22. 14 116. 03, 652. 00 22.83
45 102. 53, 093. 75 20. 97 107. 53, 318. 75 21. 76112. 53, 543. 75 22. 50|117. 53, 768. 75 23. 19
46104. 03, 197.00 21. 31 109. 03, 427. 00|22. 11|114. 03, 657. 00|22. 86|119. 03, 887. 0023. 56
47 105. 53, 301. 75 21.65110. 53, 536. 75₤22. 46|115. 53, 771. 7523. 21|120. 54, 006. 7523. 92
48 107.03, 408. 00 21.99|112. 0/3, 648. 00|22. 80 117. 03, 888. 00 23. 56₤122. 04, 128. 00 24. 28
49 108. 53, 515. 75 22. 32 113. 53, 760. 75 23. 14 118. 54, 005. 75 23. 91 123. 54, 250. 75 24. 64
50 110. 03, 625. 00/22. 66/115. 03, 875. 00|23. 48120. 0|4, 125. 00|24. 26|125. 04, 375. 00 25.00
22.661
.00 23.
HYDRAULIC TABLES
117
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
AT
ངོ་
T
A
T
T
A
↑
T
A
12
78.0
13
11 76.5 750.75 8.58 86.5 860.75 8.83
828.00 9.20 88. 0 948.00 9.48
906. 75 9.80 89. 51, 036. 75 10. 11
987.00 10. 39 91.01, 127.00 10. 73
79.5
14 81.0
IRRI 407-9
16
17
15 82. 51, 068. 75 10.96
84. 01, 152.00 11. 52
85. 51, 236. 75 12.07
87.01, 323.00 12. 60
88. 51, 410. 75 13. 12
18
19
20
21
22
96.5 970. 75 9. 03106. 51, 080. 75 9. 20
98. 01, 068. 00 9.71108. 01, 188.00 9.90
99. 51, 166. 75 10. 37 109. 51, 296. 75 10. 59
101. 01, 267. 00 11. 02 111. 01, 407. 00 11. 26
92. 51, 218. 75 11. 34 102. 51, 368. 7511. 65 112. 51, 518. 75 11. 91
94. 01, 312. 00|11. 93|104. 01, 472. 00 12. 27|114. 01, 632. 00|12. 55
95. 51, 406. 75 12. 50 105. 51, 576. 75 12. 87 115. 51, 746. 75/13, 18
97.01, 503. 00 13. 07 107.01, 683. 00 13. 46 117. 01, 863. 00 13. 80
98. 51, 600. 75 13. 62 108. 51, 790. 75 14. 05 118. 51, 980. 75 14. 41
90. 01, 500.00 13. 64|100. 01, 700. 00 14. 17 110. 01, 900. 0014. 62 120. 02, 100. 00 15. 00
91. 51, 590. 75 14. 14 101. 51, 800. 75 14. 70 111. 52, 010. 7515. 18121. 52, 220. 75 15. 58
93. 01, 683. 00 14. 63 103. 01, 903. 00 15. 22 113. 02, 123. 00 15. 73 123. 02, 343. 00 16. 16
94. 51, 776. 75 15. 12|104. 52, 006. 75 15. 74 114. 52, 236. 75 16. 27 124. 52, 466. 75 16. 72
24 96.01, 872. 00 15. 60 106. 02, 112. 00 16. 25|116. 02, 352. 00|16. 80 126. 02, 592. 00 17. 28
23
25
26
97. 51, 968. 75 16. 07 107. 52, 218. 75| 16. 75 117. 52, 468. 75 17. 32 127. 52, 718. 75|17. 83
99. 02, 067.00 16. 54 109. 02, 327. 00 17. 24 119. 02, 587. 00 17. 84 129. 02, 847. 00 18. 37
27 100. 52, 166. 75 16. 99 110. 52, 436. 75 17. 72|120. 52, 706. 75 18. 35 130. 52, 976. 7518. 90
28 102. 02, 268. 00 17. 45 112. 02, 548. 00|18. 20|122. 02, 828. 00 18. 85 132. 03, 108.00 19. 43
29 103. 52, 370. 75|17. 89|113. 52, 660. 75 18. 67 123. 52, 950. 75|19. 35 133. 53, 240. 75 19. 94
30 105. 02, 475. 00 18. 33 115. 02, 775. 00 19. 14|125. 03, 075. 00|19. 84|135. 03, 375. 00|20. 45
31 106. 52, 580. 75 18. 77 116. 52, 890. 75 19. 60 126. 53, 200. 75|20. 32 136. 53, 510. 7520. 96
32 108. 02, 688. 0019. 20 118. 03, 008. 00|20. 05|128. 0|3, 328. 00|20. 80|138. 03, 648. 00|21. 46
33 109. 52, 796. 75 19. 63 119. 53, 126. 75 20. 50 129. 53, 456. 75 21. 27 139. 53, 786. 75|21.95
34 111. 02, 907. 00 20. 05 121. 03, 247. 00 20. 95 131. 03, 587. 00 21. 74 141. 03, 927. 00 22. 44
35 112. 53, 018. 75 20. 47 122. 53, 368. 75|21. 39 132. 53, 718. 75 22. 20 142. 54, 068. 75 22.92
36 114. 03, 132. 00[20. 88|124. 03, 492. 00 21. 83|134. 0|3, 852. 00 22. 66|144. 04, 212. 00|23. 40
37 115. 53, 246. 75 21. 29 125. 53, 616. 75 22. 26 135. 53, 986. 75|23. 11|145. 54, 356. 75|23.87
38 117. 03, 363. 00 21. 70 127. 03, 743. 00 22. 68 137. 04, 123. 00₤23. 56|147. 04, 503. 00 24. 34
39118. 53, 480. 75 22. 10 128. 53, 870. 75 23. 11 138. 54, 260. 75 24. 00 148. 54, 650. 75 24. 80
40 120. 03, 600.00 22. 50 130. 04, 000. 00 23. 53 140. 04, 400. 00 24. 44 150. 04, 800. 00 25. 26
41 121. 53, 720. 75 22.90 131. 54, 130. 75 23. 95141. 54, 540. 75 24. 88 151. 54, 950. 75 25. 72
42 123. 03, 843.00 23. 29 133. 0 4, 263. 00 24. 36 143. 0 4, 683. 00 25. 31 153. 05, 103. 00 26. 17
43 124. 53, 966. 75 23. 68 134. 54, 396. 75 24. 77 144. 54, 826. 75 25. 74 154. 55, 256. 75 26. 62
44 126.04, 092. 00 24. 07 136. 0 4, 532. 00 25. 18|146. 0₤4, 972. 00 26. 17 156. 0|5, 412. 00 27. 06
45 127. 54, 218. 75 24. 46₤137. 54, 668. 75 25. 58 147. 55, 118. 75 26. 59 157. 55, 568. 75 27. 50
46 129. 04, 347. 00 24. 84 139. 04, 807. 00 25. 98149. 05, 267. 00 27. 01 159. 05, 727.00 27. 94
47 130. 54, 476. 75 25. 22 140. 54, 946. 75 26. 38 150. 55, 416. 75 27. 43 160. 55, 886. 75 28. 37
48 132.04, 608. 00 25. 60 142. 05, 088. 00 26. 78 152. 05, 568. 00 27.84 162. 06, 048. 00 28. 80
49 133. 54, 740. 75 25. 98 143. 55, 230. 75 27. 17 153. 55, 720. 75 28. 25 163. 56, 210. 75 29. 23
00|50 135. 04, 875.00 26. 35 145. 05, 375.00 27. 56 155. 05, 875. 00 28. 66 165. 06, 375.00 29.65
135.04, 145.05, 27.56 05,875.00 165.06, 00|29.
28
118
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Depth
Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
T
A
T T
A
до
T
A
T
A
до
1, 668. 00 10. 43
1,816. 75 11. 18
1, 967.00 11.92
11 116. 51, 190.75 9. 34 126. 51, 300. 75 9. 46 136. 51, 410. 75 9.56 146. 51, 520. 75 9.66
12 118. 01, 308. 00 10. 06 128. 01, 428. 00 10. 20 138. 01, 548. 00 10. 32148. 0
13 119. 51, 426. 75 10. 77 129. 51, 556. 75 10. 92 139. 51, 686. 75 11. 06 149.5
14 121.01, 547. 00 11. 46 131. 01, 687. 00 11. 63141. 01, 827. 00 11. 79 151. 0
15 122. 51, 668. 7512. 14132. 51, 818. 75 12. 33 142. 51, 968. 75 12.50 152. 5 2, 118. 75 12. 65
16 124. 01, 792.00 12. 80 134. 01, 952. 00 13. 01144. 02, 112. 00 13. 20 154. 0 2, 272.00 13. 36
17 125. 51, 916. 75 13. 45 135. 52, 086. 75 13. 68 145. 52, 256. 75 13. 89 155. 5 2, 426. 7514. 07
18 127. 02, 043. 00 14. 09137. 02, 223. 00 14. 34147. 02, 403. 00 14. 56157.0 2,583.00 14. 76
19 128. 52, 170. 75 14. 72 138. 52, 360. 75 14. 99148. 52, 550. 75 15. 23 158. 52, 740. 75 15. 44
20130. 02, 300. 00 15. 33 140. 02, 500.00 15. 63 150. 02, 700. 00 15. 88 160. 0
21 131. 52, 430. 75 15. 94 141. 52, 640. 75 16. 25151. 52, 850. 75 16. 53 161. 5
22 133. 02, 563. 00 16. 54 143. 02, 783. 00 16. 87 153. 03, 003. 00 17. 16 163. 0
23 134. 52, 696. 75 17. 12144. 52, 926. 75 17. 47 154. 53, 156. 75 17. 78 164. 5
24 136. 02, 832. 00 17. 70 146. 03, 072. 0018. 07156. 03, 312. 0018. 40|166. 0
2,900.00 16. 11
3, 060. 75 16. 77
3, 223.00 17. 42
3, 386. 75 18. 06
3, 552. 00|18. 69
25 137. 52, 968. 75 18. 27 147. 53, 218. 75 18. 66 157. 53, 468. 75 19.01 167. 5 3, 718. 75 19. 32
26 139.03, 107. 00 18. 83 149. 03, 367. 00 19. 24 159. 03, 627. 00 19. 61 169. 0 3, 887. 00|19.93
27 140. 53, 246. 75 19. 38 150. 53, 516. 75 19. 81 160. 53, 786. 75 20. 20170.5 4,056. 75 20. 54
28 142. 03, 388. 00 19. 93 152. 03, 668. 00 20. 38 162. 03, 948. 00 20. 78 172.0 4, 228. 00 21. 14
29 143. 53, 530. 75 20. 47 153. 53, 820. 75 20. 94163. 54, 110. 7521. 35173. 54, 400. 7521.73
30 145. 03, 675. 00 21. 00 155. 03, 975. 00 21. 49 165. 04, 275. 00 21. 92 175.0
31 146. 53, 820. 75 21. 53 156. 54, 130. 75 22. 03166. 54, 440. 75 22. 48 176. 5
32 148. 03, 968. 00 22. 04158. 04, 288. 00 22. 57 168. 04, 608. 00 23.04 178.0
33 149. 54, 116. 75 22. 56 159. 54, 446. 75 23. 10 169. 54, 776. 75 23. 59179. 5
34 151. 04, 267. 00 23. 06 161. 04, 607. 00 23. 63 171. 04, 947. 00 24. 13 181.0
35 152. 54, 418. 75 23. 57 162. 54, 768. 75 24.15 172. 55, 118. 75 24. 67 182. 5
36 154. 04, 572. 00₤24. 06₤164. 04, 932. 00 24. 66174. 05, 292.00 25. 20184. 0
37 155. 54, 726. 75|24. 55 165. 55, 096. 75 25. 17 175. 55, 466. 75 25. 73 185. 5
38 157. 04, 883. 00 25. 04167. 05, 263. 00 25. 67 177. 05, 643. 00 26. 25 187.0
39 158. 55, 040. 75 25. 52 168. 55, 430. 75 26. 17 178. 55, 820. 75|26. 76|188. 5|
40 160. 05, 200.00 26. 00 170. 05, 600. 00 26. 67 180. 06, 000. 00 27. 27 190.0
41161. 55, 360. 75 26. 47 171. 55, 770. 75 27. 16 181. 56, 180. 75 27. 78 191. 5|
42 163. 05, 523. 00 26. 94 173. 05, 943. 00 27. 64 183. 06, 363. 00 28. 28₤193.0
43 164. 55, 686. 75 27. 41 174. 56, 116. 75 28. 12184. 56, 546. 75 28. 78194. 5|
44 166. 05, 852. 00 27. 87 176. 06, 292. 0028. 60186. 06, 732. 0029. 27 196.0
45 167. 56, 018. 75 28. 32 177. 56, 468. 75 29. 07 187. 56, 918. 75 29. 76 197. 5||
46 169. 06, 187.00 28. 78 179. 06, 647. 0029. 54 189. 07, 107. 00 30. 24|199. 0
47 170. 56, 356. 75 29. 23 180. 56, 826. 7530. 01190. 57, 296. 75 30. 72 200. 5
48 172. 06, 528. 00 29. 67 182. 07, 008. 0030. 47192. 07, 488. 0031. 20202. 0
49 173. 56, 700. 75 30. 12 183. 57, 190. 75 30. 93193. 57, 680. 75 31. 67 203. 5
4, 575. 00 22. 32
4,750. 75|22. 90
4, 928. 00 23. 47
5, 106. 75 24. 03
5, 287.00 24. 59
5, 468. 75 25. 14
5, 652. 00 25. 69
5, 836. 75 26. 23
6, 023. 00|26. 77
6, 210.75 27.30
6, 400.00 27. 83
6, 590. 75 28. 35
6, 783. 00 28. 86
6, 976. 75|29. 38
7, 172.00 29. 88
7, 368. 75|30. 39
7, 567. 0030. 89
7,766. 7531. 38
7, 968. 00 31.87
8, 170. 75 32. 36
50 175. 06, 875, 00|30. 56|185. 07, 375. 00|31. 38|195. 0|7, 875. 00|32. 14|205. 0
00 30.
0031
32.
8, 375. 00 0032.84
HYDRAULIC TABLES
119
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes ¾4 to 1-Continued

Depth
Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
T
A
T
A
Τ
A
「་T
Τ
A
11 156. 51, 630. 75 9.74 166. 51, 740. 75 9. 81176. 51, 850. 75 9.87 186.5
12 158. 01, 788. 00 10. 52168. 01, 908. 00 10. 60 178. 02, 028. 00 10. 67 188. 0
13 159. 51, 946. 75 11. 29 169. 52, 076. 7511. 38179. 52, 206. 7511. 46 189. 5
14 161. 02, 107. 00 12. 04171. 02, 247. 00 12. 15181. 02, 387.00 12. 24191.0
15 162. 52, 268. 75 12. 78 172. 52, 418. 75 12. 90 182. 52, 568. 75 13. 01192. 5
16 164. 02, 432. 00 13. 51 174. 02, 592. 0013. 64 184. 02, 752. 00 13. 76 194. 0
17 165. 52, 596. 75 14. 23 175. 52, 766. 75 14. 37 185. 52, 936. 75 14. 50 195. 5
18167.02, 763. 00 14. 94 177. 02, 943. 00 15. 09 187. 03, 123. 00 15. 23 197. 0
19 168. 52, 930. 75 15. 63 178. 53, 120. 75 15. 80188. 53, 310. 75 15. 96 198. 5
20 170. 03, 100.00 16. 32|180. 03, 300.00 16. 50 190. 03, 500. 0016, 67200. 0
21171. 53, 270. 75 16. 99 181. 53, 480. 75 17. 19 191. 53, 690. 75 17. 37 201. 5
22 173. 03, 443. 00 17. 66 183. 03, 663. 00 17. 87 193. 03, 883. 00 18. 06 203. 0
23 174. 53, 616. 75 18. 31 184. 53, 846. 75 18. 54 194. 54, 076. 75|18. 74204. 5
24 176. 03, 792. 00 18. 96 186. 04, 032. 00 19. 20 196. 04, 272.00 19. 42 206. 0
25 177. 53, 968. 75 19. 60187. 54, 218. 75 19. 85 197. 54, 468.75 20. 08 207. 5
26 179.04, 147. 00 20. 23 189. 04, 407. 00 20. 50 199. 04, 667.00 20. 74 209. 0
27 180. 54, 326. 75 20. 85190. 54, 596. 75 21. 13|200. 54, 866. 75 21. 39 210. 5
28 182. 04, 508. 00 21. 47|192. 04, 788. 00 21. 76 202. 05, 068. 00 22. 03 212. 0
29 183. 54, 690. 75|22. 07|193. 54, 980. 75 22. 39 203. 55, 270. 75|22. 67|213. 5
1, 960. 75 9.93
2, 148. 00 10. 74
2, 336. 75 11. 54
2, 527.00 12. 33
2, 718. 75 13. 10
2, 912. 00 13. 87
3, 106. 75 14. 62
3, 303. 00 15. 36
3, 500. 75|16. 10
3, 700.00 16. 82
3, 900. 75 17. 53
4, 103. 00 18. 24
4, 306. 75 18. 93
4, 512. 00 19. 62
4, 718. 75 20. 30
4, 927. 00 20.97
5, 136. 7521. 63
5, 348. 00 22. 28
5, 560. 75|22. 93
30 185. 04, 875. 00 22. 67195. 05, 175. 00 23. 00|205. 0|5, 475. 00|23. 30|215. 0| 5, 775. 00|23. 57
31 186. 55, 060. 75 23. 27 196. 55, 370. 75 23. 61 206. 55, 680. 75 23. 92 216. 55, 990. 75 24. 21
32 188. 05, 248. 00 23. 85 198. 05, 568. 00 24. 21 208. 05, 888. 00 24. 53 218. 0
33 189. 55, 436. 75 24. 43 199. 55, 766. 75 24. 80 209. 56, 096. 75 25. 14 219. 5
34 191. 05, 627. 00 25. 01 201. 05, 967. 00 25. 39|211. 06, 307. 00 25. 74 221. 0
35 192. 55, 818. 75 25. 58 202. 56, 168. 75 25. 97 212. 56, 518. 75 26. 34 222. 5
36 194. 06, 012. 00 26. 14204. 06, 372. 00|26. 55 214. 06, 732. 00 26. 93 224. 0|
37 195. 56, 206. 75 26. 70 205. 56, 576. 75|27. 12|215. 56, 946. 75 27. 51 225. 5
38 197. 06, 403. 00 27. 25 207. 06, 783. 00 27. 69 217. 07, 163. 00 28. 09 227. 0
39 198. 56, 600. 75 27. 79208. 56, 990. 75 28. 25 218. 57, 380. 75 28. 66 228.5
40 200. 06, 800. 00 28. 33 210. 07, 200. 00 28. 80 220. 07, 600.00 29.23 230. 0
41 201. 57, 000. 75 28. 87 211. 57, 410. 75 29. 35 221. 57, 820. 75 29. 79 231. 5
42 203. 07, 203. 00|29. 40|213. 07, 623. 00 29. 89|223. 08, 043. 00|30. 35|233. 0
43 204. 57, 406. 75|29. 93|214. 57, 836. 75|30. 43|224. 5|8, 266. 75|30. 90/234. 5|
44 206. 07, 612. 0030. 45|216. 08, 052. 0030. 97 226. 08, 492. 00|31. 45|236. 0
6, 208. 0024. 83
6, 426. 75 25. 45
6, 647. 00 26. 07
6, 868. 75 26. 67
7, 092. 00 27. 28
7, 316. 7527.87
7, 543.00 28. 46
7, 770. 75 29. 05
8, 000. 00 29. 63
8, 230. 75|30. 20
8, 463. 00|30. 77
8, 696. 75|31. 34
8, 932. 0031.90
45 207. 57, 818. 75 30. 97 217. 58, 268. 75 31. 50 227. 58, 718. 75 32. 00 237. 5 9, 168. 75 32. 46
46 209. 08, 027. 00 31. 48 219. 08, 487. 00 32. 03 229. 08, 947. 00 32. 53 239.0 9, 407.00 33. 01
47 210. 58, 236. 75 31.99 220. 58, 706. 75 32. 55 230. 59, 176. 75 33. 07 240. 5 9, 646. 75 33. 55
48 212. 08, 448. 00 32. 49 222. 08, 928. 0033. 07232. 09, 408. 00|33. 60|242. 0 9, 888. 0034. 10
49 213. 58, 660. 75|32. 99|223. 59, 150. 75|33. 58|233. 59, 640. 75|34. 13|243. 510, 130. 75|34. 64
50 215. 08, 875. 0033. 49 225. 09, 375. 00134. 09 235. 09, 875. 00 34. 65 245. 010, 375. 0035. 17
120
HYDRAULIC TABLES
Table 7.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 34 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
T
T
A
T
H231
11
196.5 2,070. 75
9.98
12 198.0 2, 268.00
10.80
206, 52, 180. 75
208.0 2, 388. 00
10.03
216.5 2,290. 75
10.07
10.85
218.0 2,508. 00
10.90
199.5 2,466.75
11.61
209.52, 596. 75
11.67
219.5 2,726. 75
11.73
14
201.0 2,667. 00
12.40
211.0 2,807.00
12.48
221.0 2,947.00
12.54
15
202.5 2,868.75
13. 19
212.5 3,018. 75
13. 27
222.5 3, 168. 75
13.34
16
204. 0 3,072.00
13.96
214.0 3,232.00
14. 05
224.03, 392. 00
14. 13
17
205.5 3, 276.75
14.73
215. 5 3, 446.75
14.82
225. 53, 616. 75
14.91
19
20
21
24
25
27
28
29
30
31
22 22232 42233 3-*** 38588 **** **
18 207. 0 3, 483.00
15. 48
217.0 3,663.00
15.59
227.0 3.843. 00
15.69
208. 53, 690.75
16.22
218.5 3,880. 75
16.34
228.5 4,070. 75|
16.45
210.0 3,900.00
16.96
220.0 4,100.00
17.08
230. 0 4, 300.00
17.20
211.5 4, 110.75
17.68
221, 54, 320. 75
17.82
231.5 4,530. 75
17.94
213. 0 4, 323.00
18.40
223.04, 543. 001
18. 54
233. 0 4, 763. 00
18.68
214. 54, 536. 75
19. 10
224. 5 4,766.75
19.26
234. 5 4,996. 75
19.40
216. 0 4, 752.00
19.80
226. 0 4, 992.00
19.97
236.0 5,232.00
20.12
217.54, 968. 75
20.49
227.5 5, 218.75
20.67
237.5 5, 468. 75]
20.83
26 219. 0 5,187.00
21.17
229.05, 447.00]
21.36
239.0 5,707. 00
21.54
220.5 5, 406.75
21.85
230.5 5, 676.75
22.05
240. 55, 946. 75
22. 23
222. 0 5,628. 00
22. 51
232.0 5,908.00
22.72
242.0 6, 188. 00
22.92
223.5 5,850. 75
23.17
233.5 6, 140.75
23.39
243.5 6, 430.75
23.60
225. 0 6,075, 00
23.82
235.0 6,375.00
24.06
245. 0 6, 675. 00
24. 27
226.5 6, 300.75
24. 47
236.5 6, 610. 75
24. 71
246.5 6, 920. 75
24.94
82
228. 0 6, 528. 00
25.11
238.0 6, 848. 00|
25.36
248.0 7,
248.0 7, 168. 00
25.60
33
229.5 6, 756. 75
25.74
239.5 7,086. 75
26.01
249. 57, 416. 75
26. 25
34
231.0 6, 987.00
26.37
241.0 7, 327.00
26.64
251.0 7, 667.00
26.90
232. 5 7, 218. 75
26.99
242, 5 7, 568. 75
27.27
252.5 7, 918. 75
27.54
36
234. 0 7, 452. 00
27.60
244. 0 7, 812.00
27.90
254.0 8, 172. 00
28.18
37
235. 57, 686. 75
28. 21
245. 58,056.75
28.52
255. 5 8, 426. 75
28.81
237.0 7, 923.00
28.81
247.0 8, 303.00
29. 13
257.0 8, 683.00
29.43
39
238.5 8, 160. 75
29.41
248. 58, 550. 75
29.74
58,
258.5 8,940.75
30.05
40
240.0 8, 400. 00
30.00
250.0 8,800.00
30.34
260.0 9, 200. 00
30.67
41
241. 58, 640.75
30.59
251. 59,050.75
30.94
261. 5 9, 460. 75
31.28
42
243.0 8, 883.00
31. 17
43
244.5 9, 126. 751
31.75
44
246. 0 9, 372. 00
32.32
253.0 9, 303. 00
254.5 9, 556. 75
256.0 9, 812. 00
31.54
263. 0) 9, 723. 00
31.88
32. 12
264.5 9, 986. 75
32.48
32.71
266. 010, 252.00
33.07
46
45 247.5 9, 618. 75
249.0 9, 867.00
32.88
257.5 10, 068. 75
33. 29
267. 510, 518. 75
33.66
33.45
259. 010, 327. 00
33.86
269. 010, 787.00
34. 24
47
250. 510, 116.75 34.01
260. 510, 586. 75
34.43
270. 511, 056. 75
34.82
48
252. 010, 368.00
34.56
262. 010, 848. 00
34.99
272. 011, 328. 00
35.40
49
253. 510, 620. 75
35. 11
263. 511, 110.75
35.55
273. 511, 600. 75
35.97
01101150
36.54
255. , 875. 00
010O
275. ,
, 875.00
9/1135.66
36.11
265. 011, 375. 00
,
HYDRAULIC TABLES
121
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1
T, and

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
T
A
да
Τ
A
T
A
0.2
2.4
0.44 0.17 3.4
0.64 0.18
4.4
0.84 0.18
5.4
0.4 2.8
.96 .31 3.8
1.36 .33
4.8
1.76
.34
5. 8
•
1.04 0.19
2.16.35
0.6
3.2
1.56
0.8
3.6
2.24
.42
.53 4.6
4.2
2.16 .46
5.2
2.76
.48
6.2
3.36 .50
3.04 .58 5.6
3.84 .61 6.6
4.64.64
1.0 4.0
3.00 .62
5.0
4.00
.69 6.0
5.00
.73
7.0
6.00 .77
1.2 4.4
3.84 .71
5.4
5.04 .79
6.4
6. 24.84
7.4
7.44.89
1.4
4.8
4.76 .80
5.8
6. 16
.89
6.8
7.56.95
7.8
8.96 1.00
1.6 5.2
5.76 .88 6.2
7.36 .98
7.2
8.96 1.05
8.2
10.56 1.11
1.8
5.6
6.84 .96
6.6
8.64 1.07
7.6
10.44 1.15
8.6
12.24 1.21
2.0
6.0
8.00 1.04
7.0
2.2
6.4
9.24 1.12
7.4
2.4
6.8
10.56 1.20
7.8
2.6
7.2
11.96 1.28
8.2
2.8
7.6
13.44 1.35
8.6
10.00 1.16
11.44 1.24 8.4
12.96 1.32 8.8
14.56 1.41 9.2
16.24 1.49 9.6
8.0
12.00 1.24
9.0
14.00 1.31
13.64 1.33 9.4
15.36 1.42
17.16 1.51 10.2
19.04 1.60 10.6
15.84 1.41
9.8
17.76 1.51
19.76 1.60
21.84 1.69
3.0
8.0
15.00 1.43
9.0
3.2
8.4
3.4 8.8
16.64 1.51 9.4
18.36 1.58 9.8
3.6
9.2
20.16 1.65 10.2
18.00 1.57 10.0
19.84 1.65 10.4
21.76 1.72 10.8
23.76 1.80 11.2
21.00 1.68 11.0
23.04 1.77 11.4
25.16 1.85 11.8
24.00 1.78
26.24 1.87
28.56 1.95
27.36 1.93 12. 2
30.96 2.04
3.8
9.6
22.04 1.73| 10.6]
25.84 1.88] 11.6]
29.64 2.01 12.6
33.44 2.12
4.0
10.0
24.00 1.80 11.0
28.00 1.96 12.0
32.00 2.09 13.0
36.00 2.21
4.2
10.4
4. 4
10.8
26.04 1.88 11.4
28.16 1.95 11.8
30.24 2.03 12.4
34. 44 2.17 13. 4
38.64 2.29
4.6
11.2
30.36 2.02 12.2
4.8
11.6
32.64 2.10) 12.6
32. 56 2.11 12.8
34.96 2.18 13.2
37.44 2.26 13.6
36.96 2.25 13.8
39.56 2.33| 14.2]
41.36 2.37
44.16 2.45
42.24 2.40 14. 6
47.04 2.53
5.0
12.0
5.2
12.4
5.4 12.8
5.6 13.2
5.8 13.6
35.00 2.17 13.0
37.44 2.24| 13.4|
39.96 2.31 13.8
42.56 2.39 14.2
45. 24 2.46 14.6
40.00 2.33 14.0|
42.64 2.41| 14.4|
45.36 2.48 14.8
48.16 2.56 15.2
51.04 2.63 15.6
45.00 2.48 15.0
47.84 2.56| 15.4
50.76 2.63 15.8
53.76 2.71| 16.2|
56.84 2.79 16.6
50.00 2.61
53.04 2.69
56.16 2.77
59.36 2.85
62.64 2.93
6.0
14.0
6.2
14. 4
6.4 14.8
6.6 15.2
6.8 15.6
7.0 16.0
7.5 17.0
8.0 18.0
48.00 2.53 15.0
50.84 2.60 15.4|
53.76 2.67 15.8
56.76 2.75 16.2|
59.84 2.82 16.6
54.00 2.70 16.0
57.04 2.78 16.4]
60.16 2.85 16.8
63.36 2.92【 17.2
66.64 3.00 17.6
60.00 2.86 17.0
63.24 2.94 17.4
66.56 3.01 17.8
66.00 3.00
69.44 3.08
72.96 3.16
69.96 3.09| 18.2
76.56 3.23
73.44 3.16] 18.6]
80.24 3.31
63.00 2.89 17.0
71.25 3.07 18.0
80.00 3.25 19.0
8.5 19.0
89.25 3.43 20.0
9.0 20.0
9.5 21.0
10.0 22.0
10,5 23.0
99.00 3.61 21.0
70.00 3.07 18.0
78.75 3.25| 19.0|
88.00 3.43] 20. 0
97.75 3.61 21.0
108.00 3.80 22.0
77.00 3.24 19.0
86.25 3.42 20.0
96.00 3.61 21.0
106.25| 3.79| 22.0|
117.00 3.97| 23. 0
84.00 3.39
93.75 3.58
104.00 3.76
114.75 3.95
126.00 4.14
109.25 3.78 22.0
120.00 3.96] 23.0
131.25 4.14 24.0
118.75 3.98 23.0
130.00 4. 16 24.0
141.75 4.34 25.0
128.25 4.15) 24.0
137.75 4.32
140.00 4.34 25.0
152.25 4.52 26.0
150.00 4.51
162.75 4.69
563189°-449
122
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued
T, and

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
A
T
A
T
A
T
T
A
0.2
6.4
1.24 0.19
7.4
0.4 6.8
2.56 .36 7.8
0.6
7.2
3.96
.51
8.2
0.8
7.6
5. 44 .66
8.6
6. 24
1.44 0.19 8.4
2.96 .36 8.8
4. 56 52 9.2
.67 9.6
1.64 0.19
3.36 .37
9.4
1.84 0.19
9.8
3.76 .37
5.16 .53 10. 2
7.04.69 10.6
5.76.54
7.84 .70
1.0
8.0
7.00 .79
9.0
1.2 8.4
8.64 .92
9.4
1.4 8.8
10.36 1.04 9.8
1.6
9.2
12.16 1.16 10. 2
1.8
9.6
14.04 1.27 10. 6
8.00 .81 10.0
9.84.95 10.4
11.76 1.07 10.8
13.76 1.19 11. 2
15.84 1.31 11.6
•
9.00 83 11.0
11.04 .97 11.4
13.16 1.10 11.8
15. 36 1. 23 12.2|
17.64 1.35] 12.6
10.00 .85
12.24 .99
14.56 1.12
16.96 1.25
19.44 1.38
2.0
10.0
16.00 1.37 11.0
2.2 10.4
18.04 1.48 11.4
18.00 1.42 12.0
20.24 1.53| 12.4|
2.4 10.8
20.16 1.58 11.8
22.56 1.64 12.8
2.6 11.2
22.36 1.67 12. 2
2.8 11.6
24. 64 1.77 12.6
24.96 1.74 13.2
27.44 1.84 13.6
20.00 1.46 13.0
22.44 1.58 13.4
24.96 1.69 13.8
27.56 1.79 14. 2
30.24 1.90 14.6
22.00 1.50
24.64 1.62
27.36 1.73
30.16 1.84
33.04 1.95
3.0
12.0
27.00 1.86 13. 0
30.00 1.94 14. 0
3.2 12.4
29.44 1.96 13.4
3.4 12.8
31.96 2.05] 13.8|
32.64 2.03 14.4
35.36 2.13 14.8
33.00 2.00 15. 0
35.84 2.10 15. 4
36.00 2.06
39.04 2.16
38.76 2.20 15.8
42.16 2.26
3.6 13.2
34.56 2.14| 14.2|
38.16 2.22 15.2
41.76 2.30 16. 2
45.36 2.36
3.8
13.6
37.24 2.22 14.6
41.04 2.31 15.6
44.84 2.39 16. 6
48.64 2.46
4.0 14.0
40.00 2.31 15.0
4.2
14. 4
42.84 2.40 15. 4
4.4
14.8
45.76 2.48 15.8
4.6
15. 2
48.76 2.56 16. 2
4.8
15.6
51.84 2.65 16.6
44.00 2.40 16.0
47.04 2.49 16.4
50.16 2.58 16.8
53.36 2.67 17.2
56.64 2.75 17.6
48.00 2.49| 17.0
52.00 2.56
51. 24 2.58 17.4
54.56 2.67 17.8
57.96 2.76 18. 2
61.44 2.85 18. 6
55.44 2.66
58.96 2.75
62.56 2.84
66. 24 2.93
5.0
16.0
5.2 16.4
5.4
16. 8
5.6
17.2
5.8 17.6
55.00 2.73| 17.0
58.24 2.81 17.4
61.56 2.89 17.8
64.96 2.97 18.2
68.44 3.05 18.6
60.00 2.84 18.0
63.44 2,92 18.4
66.96 3.01 18.8
70.56 3.09 19.2
74. 24 3.17 19.6
65.00 2.94 19.0
68.64 3.02 19.4
70.00 3.02
73.84 3.11
72.36 3.11 19.8
77.76 3. 20
76. 16 3.19] 20.2
80.04 3.28 20.6
81.76 3.29
85.84 3.38
6.0
18.0
6.2
18. 4
6.4
18.8
72.00 3.13| 19.0
75.64 3.21 19.4
79.36 3.29 19.8
6.6
19.2
83.16 3.37 20.2
6.8
19.6
87.04 3.45 20.6
8.0
8.5
9.0
7.0 20.0
7.5 21.0 101.25 3.72 22.0
22.0 112.00 3.91] 23. 0
23.0 123.25 4.10 24.0
24.0
135.00 4,291 25.0
91.00 3.53 21.0
98.00 3.66| 22.0
108.75 3.85 23.0
120.00 4.05 24.0
131.75 4.24 25.0
144.00 4.44 26.0
78.00 3.25| 20.0
81.84 3.34 20.4
85.76 3.42] 20.8
89.76 3.50 21, 2
93.84 3.58 21.6
84.00 3.36 21.0.
88.04 3.45 21.4
92. 16 3. 53 21.8
96.36 3.61 22.2
100.64 3.70 22.6
105.00 3.78 23.0
116.25 3.98 24.0
128.00 4.18 25.0
140. 25| 4.38| 26. 0
153.00 4.57 27.0
90.00 3.47
94. 24 3.55
98.56 3.64
102.96 3.72
107. 44| 3.81
148.75 4.50
162.00 4.70
112.00 3.89
123.75 4. 10
136.00 4.30
9.5 25.0 147.25 4.48 26.0
10.0 26.0 160.00 4.67 27.0
156.75 4.63 27.0
170.00 4.82 28.0
166.25 4.77 28.0
180.00 4.96 29.0
175.75 4.90
190.00 5.10
10.5 27.0 173.25 4.85 28.0
204.75 5.29
183.75 5.01 29.0
194, 25 5. 15 30.0
HYDRAULIC TABLES
123
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T T
A
↑ T
A
T T
A
0.2 10.4
0.4
10.8
2.04 0.19 12.4
4.16 .37 12.8
0.6
11.2
0.8
11.6
6.36 .54 13.2
8.64 .70 13.6
2.44 0.19 14.4
4.96 .38 14.8
7.56 .55 15.2
10.24 .72 15.6
•
2.84 0.19 16.4
5.76 .38 16.8
8.76
11.84
3.24 0.20
6. 56
.38
56 17.2
73 17.6
9.96
.56
13. 44
•
.74
1.0 12.0
1.2 12.4
1.4 12.8
1.6 13.2
1.8
13.6
11.00 .86 14.0
13.44 1.00 14.4
15.96 1.14 14.8
18.56 1.28 15.2
21.24 1.41 15.6
13.00
.88 16.0
15.84 1.03, 16.4|
18.76 1.18 16.8
21.76 1.32 17.2
24.84 1.45 17.6
15.00 .89 18.0
18.24 1.05 18.4
21.56 1.20 18.8
24.96 1.35 19.2
28.44 1.49 19. 6
17.00 .90
20.64 1.06
24.36 1.22
28.16 1.37
32.04 1.52
2.0
14.0
24.00 1.53) 16.0
28.00 1.59| 18.0|
2.2
14. 4
2.4
14.8
2.6
15.2
2.8 15.6
26.84 1.65 16.4
29.76 1.77 16.8
32.76 1.89 17.2
35.84 2.00 17.6
31.24 1.71 18.4
34.56 1.84 18.8
37.96 1.96| 19.2|
41.44 2.08 19.6
32.00 1.63 20.0|
35.64 1.76 20.4
39.36 1.89 20.8
43.16 2.02| 21.2|
47.04 2.15| 21.6|
36.00 1.66
40.04 1.80
44.16 1.94
48.36 2.07
52.64 2.20
3.0 16.0
39.00 2.11 18.0
3.2 16.4
42.24 2.22 18.4
3.4 16.8
45.56 2.32 18. 8
3.6 17.2
48.96 2.43 19.2
3.8
17.6
52.44 2.53 19.6
45.00 2.20 20.0
48.64 2.31 20.4
52.36 2.42] 20.8]
56.16 2.53 21.2
60.04 2.64 21.6
51.00 2.27 22.0
55.04 2.39 22.4
59.16 2.51 22.8
63.36 2.62] 23.2]
67.64 2.73 23.6
57.00 2.33
61.44 2.45
65.96 2.57
70.56 2.69
75.24 2.81
4.0
4.2 18.4
18.0
56.00 2.63 20.0
59.64 2.73 20.4
4.4 18.8
4.6 19.2
4.8 19.6
63.36 2.82 20.8
67.16 2.92 21.2
71.04 3.01 21.6
64.00 2.75 22.0
68.04 2.85 22.4
72.16 2.95) 22.8
72.00 2.84 24.0
76.44 2.95 24. 4
80.00 2.93
84.84 3.04
76.36 3.05 23.2
80.64 3.15 23.6
80.96 3.06) 24.8]
85.56 3.17 25.2
90.24 3.27 25.6
89.76 3.16
94.76 3.27
99.84 3.38
5.0 20.0
75.00 3.11 22.0
5.2 20.4
5.4 20.8
5.6 21.2
5.8 21.6
6.0 22.0
79.04 3.20 22.4
83.16 3.29 22.8
87.36 3.38 23.2
91. 64 3.47 23.6
85.00 3.25 24.0
89.44 3.35] 24.4|
93.96 3.45 24.8
98.56 3.54 25.2
103.24 3.63 25.6
95.00 3.38 26.0
99.84 3.48 26.4
104.76 3.58 26.8
109.76 3.68 27.2
114.84 3.78 27.6
105.00 3.48
110.24 3.59
115.56 3.70
120.96 3.80
126.44 3.90
6.2
22.4
96.00 3.56 24.0
100.44 3.65 24.4
6.4
22.8
104.96 3.73 24.8
6.6
23.2
6.8 23.6
109.56 3.82 25. 2
114. 24 3.91 25.6
108.00 3.73 26.0
112.84 3.82 26.4
117.76 3.91 26.8
122.76 4.00 27.2
127.84 4.09 27.6
120.00 3.87| 28.0
125.24 3.97 28.4
130.56 4.07 28.8
135.96 4.16 29.2
141.44 4.26 29.6
132.00 4.00
137.64 4.10
143.36 4. 20
149.16 4.30
155.04 4.40
7.0 24.0
7.5 25.0
8.0 26.0
8.5 27.0
9.0 28.0
119.00 3.99 26.0
131.25 4.20 27.0
144.00 4.41| 28.0
157.25 4.62 29.0
171.00 4.82 30.0
133.00 4.18 28.0
146.25 4.40 29.0
160.00 4.62 30.0
174.25 4.83 31.0
189.00 5.051 32.0
147.00 4.35 30.0
161.25 4.58 31.0
176.00 4.81 32.0
191.25 5.03 33.0
161.00 4.50
176.25 4.74
192.00 4.97
208.25 5.20
207.00 5.25 34.0
225.00 5.43
9.5 29.0
10.0 30.0
185.25 5.02 31.0
200.00 5.22 32.0
204. 25 5.25 33.0|
220.00 5.46 34. 0
223.25 5.46 35.0
240.00 5.68 36.0
260.00 5.87
242.25 5. 65
10.5 31.0
278.25 6.09
215.25 5.42 33.0
257.25 5.89 37.0
236.25 5.67 35.0
124
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued
and

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
-
T
A
↑ T
A
до Τ
A
0.2
18. 4
0.4
18. 8
7.36 .38
3.64 0.20 20.4
20.8
4.04 0.20 22.4
8.16 .39 22.8
4.44 0.20 24.4
4.84 0.20
8.96
.39 24.8
9.76
.39
0.6
19. 2
11. 16
.57 21. 2
0.8
19.6
15.04
.74 21.6
12.36
16.64 .75 23.6]
.57 23.2
13. 56
.57 25. 2
14.76
.57
18. 24
.75 25.6
19.84 .76
1.0
20.0
1.2 20.4
1.4 20.8
1.6
21.2
1.8
21.6
19.00 .91 22.0
23.04 1.08 22.4
27.16 1.24 22.8
31.36 1.39 23. 2
35. 64 1.54 23.6
21.00
.92 24.0
23.00
.93
26.0
25.00 .93
25. 44 1.09 24.4
29.96 1.25 24.8
34.56 1.41 25. 2
27.84 1. 10 26. 4)
30.24 1. 10
32.76 1.26| 26.8
35.56 1.27
39. 24 1.56 25. 6
37.76 1.42| 27.2|
42.84 1.58 27.6
40.96 1.44
46.44 1.60
2.0
22.0
2.2
22. 4
40.00 1.69 24.0
44. 44 1.83 24.4
2.4
22.8
48.96 1.98 24.8
44.00 1.71 26. 0
48.84 1.86| 26. 4|
53.76 2.01 26.8
48.00 1.74 28.0
53.24 1.89 28.4
52.00 1.75
57.64 1.91
58.56 2.03 28.8
63.36 2.06
2.6
23. 2
2.8
23.6
53.56 2.11| 25. 2|
58.24 2.25 25.6
58.76 2.15 27. 2
63.84 2.29 27.6
63.96 2.18 29. 2
69.44 2.32| 29.6|
69.16 2.21
75.04 2.35
3.0
24. 0
3.2
24. 4
63.00 2.38 26.0
67.84 2.51| 26.4
3.4
24. 8
72.76 2.63| 26.8
3.6
25.2
77.76 2.76 27.2
3.8
25. 6
82.84 2.88 27.6
69.00 2.42 28.0
74. 24 2.56| 28.4
79.56 2.69 28.8
84.96 2.81 29. 2
90.44 2.94 29.6
75.00 2.46 30.0
80.64 2.60| 30.4|
86.36 2.73 30.8
92.16 2.86] 31.2
98.04 2.99 31.6
81.00 2.49
87.04 2.63
93.16 2.77
99.36 2.91
105.64 3.04
4.0
26. 0
4.2
26.4
4.4
26.8
4.6 27.2
4.8 27.6
5.0
28.0
5.2
28.4
5.4
28.8
5.6 29.2
5.8 29.6
88.00 3.00 28.0]
93. 24. 3. 12 28.4
98.56 3.24 28.8
103.96 3.35 29.2
109.44 3.47 29.6
115.00 3.58] 30.0|
120.64 3.69| 30. 4|
126.36| 3.80] 30.8
132. 16 3.91 31.2
138.04 4.01 31.6
96.00 3.07 30.0
101.64 3. 19 30.4
107.36 3.31 30.8
113. 16 3.43] 31.2)
119.04 3.55 31.6
125.00 3.66 32.0
131.04 3.78 32.4
137. 16 3.89 32.8
143.36 4.00] 33.2]
149. 64 4. 11 33.6
6.0 30.0
6.2 30.4
6.4 30.8
6.6 31.2
6.8
31.6
144.00 4. 12 32.0
150.04 4.22 32.4
156. 16 4.33 32. 8]
162.36] 4.43 33. 2]
168. 64 4. 53 33.6
156.00 4.22 34.0
162.44 4.33 34.4
168.96 4.43] 34.8
175.56 4.54 35. 2
182. 24 4.65 35.6
7.0 32.0
7.5 33.0
8.0 34.0
8.5
35.0
9.0
36.0
175.00 4.63| 34.0|
191.25 4.88 35. 0
208.00 5.12 36.0
225, 25 5.36 37.0
243.00 5.59 38.0
189.00 4.75 36.0
206.25 5.00 37.0
224.00 5.25 38.0
242.25 5.50 39.0
261.00 5.74 40.0
9.5
37.0
10.0 38.0
261.25 5.82| 39. 0
280.00 6.05 40.0
110.04 3.25 32. 4
116. 16 3.37 32,8
122.36 3.49 33. 2
128.64 3.62| 33.6|
135.00 3.74 34. 0
141.44 3.85 34.4|
147.96 3.97 34.8
154.56 4.08 35. 2
161. 24 4. 20】 35.6)
168.00 4.31 36.0
174.84 4.42 36.4
181.76 4.53 36.8
188.76 4.64 37.2
195.84 4.75 37.6
203.00 4.86 38.0
221.25 5.12 39.0
240.00 5.38 40.0
259.25 5.63 41.0
279.00 5.88 42.0
299.25 6.12 43.0
320.00] 6.36| 44.0
280.25 5.98 41.0
300.00 6.21 42.0
131.56 3.55
138. 24 3.68
145.00 3.80
151.84 3.92
180.00 4.39
187. 24 4.51
194.56 4.62
201.96 4.73
209.44 4.84
217.00 4.95
236.255.23
256.00 5.49
276.25 5.75
297.00 6.01
318. 25 6. 26
340.00 6.50
104.00 3.12 32.0]
112.00 3.17
118.44 3.30
124.96 3.43
158.76 4.04
165.76 4. 16
172.84 4.28
10.5 39.0
362, 25] 6.75
299.25 6.27 41.0
320.25 6.44 43.0|| 341.25| 6.60 45.0
HYDRAULIC TABLES
125
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued
T, and

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T T
A
→
T
T
A
T
T
A
↑
0.2 26.4
0.4 26.8
0.6 27.2
0.8 27.6
5.24 0.20 28.4
10.56.39 28.8
15.96 .58 29.2
21.44.76 29.6
5.64 0.20 30.4
6.04
0.20 32. 4
6.44 0.20
11.36 .39 30.8
12. 16
.39] 32.8
12.96
.39
17. 16
.58 31.2
18.36
.58 33. 2
19, 56
23.04
.76 31.6
24.64
.76] 33.6
1.0
28.0
1.2
28. 4
1.4
28.8
1.6
29. 2
1.8 29.6
27.00 .94 30.0
32. 64 1.11 30. 4
38.36 1.28 30.8
44.16 1.45| 31, 2
50.04 1.61 31. 6
29.00
35.04 1. 12 32.4
41. 16 1.29 32.8
47.36 1.46 33.2
53.64 1.62 33.6
.94 32.0
31.00 94 34.0
•
.58
26.24.77
33.00 .95
37.44 1.12 34. 4
43.96 1.29] 34.8
50. 56
57.24 1.63 35.6
39.84 1.13
46.76 1.30
1.46| 35. 2]
53.76 1.47
60.84 1.64
2.0 30.0
56.00 1.77) 32.0
60.00 1.78 34.0
2.2 30.4
62.04 1.93| 32.4|
66.44 1.94 34.4
64.00 1.79| 36. 0
70.84 1.96 36. 4
2.4 30.8
68.16 2.08 32.8
2.6 31. 2
74.36 2. 23 33. 2
2.8 31.6
80.64 2.38| 33.6
72.96 2.10 34.8
79.56 2.25 35.2
86. 24 2.40| 35.6|
77.76 2.11 36. 8
84.76 2.27 37.2
91.84 2.42 37.6
68.00 1.81
75.24 1.97
82.56 2.13
89.96 2.29
97.44 2.44
3.0 32.0
3.2 32.4
3.4
3.6
32.8
33. 2
3.8 33.6
87.00 2.52 34.0
93. 44 2.67| 34. 4|
99.96 2.81| 34.8|
106.56 2.95 35. 2
113. 24 3.08 35. 6
4.0
34.0
4.2
34. 4
4.4
34.8
4.6
35. 2
140.76 3.61 37. 2
4.8
35.61
147.84 3.74 37.6
5.0
36.0
155.00 3.86 38.0
5.2 36.4
5.4 36.8
5.6
5.8
37.2
37.6
162.24 3.99 38.4
169.56 4.11] 38.8
176.96 4.23 39. 2|
184.44 4.35 39.6
6.0 38.0
6.2 38.4
6.4
38.8
38.8
6.6
39.2
6.8
39.6
192.00 4.47 40. 0
199.64 4.59 40. 4
207.36| 4.70] 40. 8
215. 16 4.82 41.2
223.04 4.93| 41.6
7.0 40.0
7.5 41.0
8.0 42.0
8.5 43.0
9.0
44.0
9.5 45.0 337.25 6.38] 47.0|
10.0 46.0 360.00 6.63 48.0
231.00 5.04 42.0
251.25 5.32] 43.0)
272.00 5.59 44.0
293.25 5.86 45.0
315.00 6.12 46.0
266.25 5.41 45.0
288.00 5.69] 46.0
310.25 5.96 47.0
333.00 6.23| 48.0|
120.00 3. 22| 36. 0
126.84 3.35) 36. 4
133.76 3.48 36.8
93.00 2.55 36.0
99.84 2.69 36.4
106.76 2.84 36.8
113.76 2.98 37.2
120.84 3. 12 37.6
128.00 3.26 38.0
135. 24 3.391 38.4
142.56 3.52 38.8
149.96 3.66 39, 2
157.44 3.79 39,6
165.00 3.92 40.0
172.64 4.04 40.4
180.36 4.17 40.8
188. 16 4.29 41.2
196.04 4.41 41. 6|
204.00 4.54 42.0
212.04 4.66 42. 4
220. 16 4.78 42.8
228.36 4.89] 43. 2
236.64 5.01| 43.6
245.00 5. 13
44.0
356. 25 6. 49 49.0
380.00 6.75 50.0
99.00 2.57 38.0
106. 24 2.72| 38.4|
113.56 2.87 38.8
120.96 3.01 39. 2
128. 44 3.15) 39. 6
136.00 3.29 40.0
143. 64 3.43 40.4
151.36 3.57 40.8
159.16 3.70| 41. 2|
167.04 3.83 41.6
175.00 3.96 42.0
183.04 4.09 42. 4
191. 16 4.22 42.8
199. 36| 4.35| 43. 2|
207.64 4.47 43.6
216.00 4.60 44.0
224. 44 4.72 44. 4
232.96 4.84 44.8
241.56 4.96) 45. 2)
250. 24| 5. 08 45. 6
259.00 5.20 46. 0
259.00 5.20 46.0
281.25 5.49| 47.0
304.00 5.78 48.0
327.25 6.06 49. 0
351.00 6.33 50.0
375. 25| 6. 60| 51.0
400.00 6.86 52.0
144.00 3.32
152.04 3. 46
160. 16 3.60
168.36 3.74
176. 64 3.88
185.00 4.01
193.44 4. 14
201.96 4.27
210.56 4. 40
219. 24 4. 53
228.00 4.66
236.84 4.78
245. 76 4.91
254.76 5. 03
263.84 5. 15
344. 25 6.14
369.00 6.42
394. 25 6.70
420.00 6.97
105.00 2.59
112.64 2.74
120.36 2.89
128. 16 3.04
136.04 3.18
273.00 5.27
296.25 5.57
320.00 5.86
10.5 47.0 383.25 6.88 49.0
446.25 7.23
404. 25 7.01 51.0
425. 25 7. 12 53.0
126
HYDRAULIC TABLES
Table 8.-
8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
T
A
T
A
T
C+
T
A
0.2
35. 4
7.04 0.20 40.4
8.04 0.20 45.4
0.4
35.8
14. 16 .39 40.8
16. 16
0.6
36.2
21.36
.58 41.2
0.8
36.6
28.64
.77 41.6
24.36
32.64
.39 45.8
.58| 46.2]
77 46.6
9.04 0.20 50.4
18. 16 .39 50.8
27.36.59] 51, 2
36.64 .78 51.6
10.04 0.20
20.16
.39
1,037.0
1.2 37.4
36.00
.95 42.0
41.00 .96 47.0
43.44 1.13 42.4
49.44 1.14 47.4
1.4 37.8
1.6 38.2
1.8 38.6
2.0 39.0
2.2 39.4
50.96 1.31 42.8
58.56 1.48 43. 2
66. 24 1.65 43. 6
57.96 1.32 47.8
66.56 1.49 48. 2
75. 24 1.67 48.6
46.00 .96 52.0
55.44 1.15 52.4
64.96 1.33] 52.8
74. 56 1.51 53. 2
84.24 1.68 53.6
30.36 .59
40.64
51.00 .97
61.44 1.15
71.96 1.33
.78
82.56 1.51
93.24 1.69
74.00 1.82 44.0
81.84 1.99 44.4
2.4 39.8
2.6 40.2
2.8
40.6
3.0 41.0
3.2 41.4
3.4 41.8
89.76 2.15 44.8
97.76 2.31 45. 2
105.84 2.47 45.6
84.00 1.84 49.0
92.84 2.01 49.41
101.76 2.17 49.8
110.76 2.34|| 50.2|
119.84 2.50 50.6
94.00 1.86 54.0
103.84 2.03| 54.4
113.76 2.20 54.8
123.76 2.36| 55.2|
133.84 2.53] 55.6
104.00 1.87
114.84 2.04
125.76 2.21
136.76 2.38
147.84 2.55
3.6 42.2
3.8 42.6
114.00 2.62 46.0
122. 24 2.77 46.4
130.56 2.93 46.8
138.96 3.08 47.2)
147.44 3. 22 47.6
129.00 2.66 51.0
138.24 2.82 51.4
147.56 2.97 51.8
156.96 3. 13】 52.2
166. 44 3. 28 52,6
4,0 43.0
4.2 43.4
4.4 43.8
4.6
44. 2
4.8
44.6
156.00 3.37 48.0
164. 64 3.51 48. 4
173.36 3.65 48.8
182. 16 3.79 49.2
191.04 3.93] 49.6
5.0
45. 0
5.2
45. 4
5.4
45.8
5.6 46.2
5,8 46.6
200.00 4.07 50.0
209.04 4.21 50.4
218. 16 4.34 50.8
227.36 4.47 51.2
236. 64 4.60 51.6
6.0 47.0
6.2 47.4
6.4 47.8
6.6
48. 2
6.8
48.6
246.00 4.73 52.0
255.44 4.86 52.4
264.96 4.99 52.8
274.56 5. 12 53.2
284. 24 5. 24 53.6)
276.00 4.84 57.0
286.44 4.98 57.4
296.96 5.11 57.8
307.56] 5.24 58, 2|
318. 24 5.37 58.6
7.0
49.0
7.5 50.0
8.0 51.0
8.5 52.0
9.0
53.0
294.00 5.37 54.0
318.75 5.67 55.0
344.00 5.97 56,0
369.75 6.26| 57.0)
396.00 6.55 58.0
9.5
10.0 55.0
54.0
422.75 6.83 59.0
450.00 7.11 60.0
470.25 7.03| 64.0
500.00 7.32 65.0
176.00 3.43 53.0
185.64 3.58 53.4
195.36 3.73 53.8
205.161 3.87 54. 2
215.04 4.01 54.6
225.00 4.16 55.0
235.04 4.30 55.4
245. 16 4. 44 55.8
255.36 4.57 56.2
265.64 4.71 56.6
329.00 5.50, 59.0
356.25 5.82 60.0
384. 00] 6. 13] 61.0
412. 25 6. 44 62.0
441.00 6.74| 63.0
144.00 2.69 56.0
154. 24 2.85 56.4
164. 56 3.01 56.8
174.96 3. 17 57.2
185.44 3.33 57.6
196.00 3.48 58.0
206.64 3.63 58.4
217.36 3.78 58.8
228. 16 3.93 59.2
239.04 4.08 59.6
250.00 4.23 60.0
261.04 4.37 60.4
272.16 4.52 60.8
283. 36] 4.66] 61.2
294.64 4.80 61.6
306.00 4.94 62.0
317.44 5.08 62.4
328.96 5.21 62.8
340.56| 5.35| 63. 2|
352.24 5.48 63.6
159.00 2.72
170.242.88
181. 56] 3.05
192.96] 3.21
204.44 3.37
227.64 3.68
239.36 3.83
251. 16 3.99
263.04 4.14
275.00 4.29
287.04 4. 44
299. 16 4.58
311.36 4.73
323.64 4.87
336.00 5.02
348. 44 5. 16
364.00| 5.62| 64.0
393.75 5.95 65.0
424.00 6.27 66.0 464.00 6.39
454.75| 6.59| 67.0497.25 6.72
486.00] 6.90| 68.0] 531.00 7.04
517.75 7.20 69.0
550.00 7.51| 70.0|
216.00 3.52
360.96 5.30
373.56 5.44
386.24 5.58
399.00 5.72
431.25 6.06
565.25 7.35
600.00 7.66
10.5
635. 25 7.97
56.0 477.75 7.38 61.0
582.75 7.80 71.0
530.25 7.61 66.0
HYDRAULIC TABLES
127
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T
T
A
T
T
A
T T
A
0.2
60.4
12.04 0.20| 70.4
0.4
60.8
0.6
61.2
36.36
24. 16 .40 70.8
.59 71.2
14.04 0.20 80.4
28. 16 .40 80.8
42.36
•
0.8
61.6
48.64 .78 71.6
56.64
59 81.2
.78 81.6
16.04 0.20 90.4
32.16.40 90.8)
48.36 .59 91.2
64.64.79 91.6
18.04 0.20
36. 16
.40
54.36
.59
72.64
.79
1.0
62.0
61.00 .97 72.0
71.00
.97 82.0
1.2 62.4
1.4
62.8
73.44 1.16 72.4
85.96 1.34 72.8
1.6 63.2
1.8 63.6
2.0
64.0
2.2 64.4
98.56 1.53 73. 2
111. 24 1.71 73.6
124.00 1.89 74.0
136.84 2.07 74.4
85.44 1.16 82.4
99.96 1.35 82.8
114.56 1.54 83. 2
129.24 1.72 83.6
81.00 .98 92.0
97.44 1.17 92.4|
113.96 1.36 92.8
130.56 1.54 93.2
147. 24 1.73 93.6
91.00 .98
109.44 1.17
127.96] 1.36
146.56 1.55
165.24 1.74
144.00 1.90 84.0
158.84 2.08 84.4
2.4
64.8
149.76 2.24 74.8
173.76 2.26) 84.8)
164.00 1.91 94. 0
180.84 2.10 94.4
197.76 2.28 94.8
184.00 1.92
202.84 2.11
221.76 2.29
2.6
65.2
162.76| 2.42 75. 2
188.76 2.44 85.2
2.8 65.6
175.84 2.59 75.6
203.84 2.62 85. 6
214.76 2.46 95.2
231.84 2.64 95.6
240.76 2.47
259.84 2.65
3.0
66.0
3.2 66.4
3.4
66.8
3.6
67.2
3.8
67.6
189.00 2.76 76.0
202.24 2.93 76. 4
215.56 3.10] 76.8
228.96 3.26 77.2
242. 44] 3.43 77.6
4.0 68.0
4.2
68.4
4.4
68.8
4. 6
69. 2
4.8
69.6
256.00 3.59 78.0
269.64 3.75 78.4
283.36) 3.91] 78. 8
297. 16 4.07 79.2
311.04 4.23 79.6
219.00 2.79 86.0
234. 24 2.97 86.4|
249.56 3.13] 86.8
264.96 3.30 87.2
280.44 3.47 87.6
296.00 3.64 88.0
311.64 3.81 88.4
327.36 3.97 88.8
343. 16 4. 13 89.2
359.04 4.30 89.6
249.00 2.81 96. 0
266.24 2.99| 96. 4
283.56 3.16 96.8
300.96 3.34 97.2
318.44 3. 51
97.6
336.00 3.68 98.0
353. 64 3.85 98.4
371.36 4.02 98.8
389. 16 4.18 99. 2
407.04 4.35 99.6
279.00 2.83
298. 24 3.01
317.56] 3.19
336.96 3.36
376.00 3.71
395.64 3.88
415.36 4.05
356.44 3.54
435. 16 4.22
455.04 4.39
5.0
70.0
325.00 4.38 80.0
375.00 4.46 90.0
5.2
70.4
339.04 4.54 80.4
5.4
70.8
353.16 4.69 80.8
5. 6
71.2
367.36 4.84 81.2
5.8
71.6
381.64 4.99 81.6
391.04 4.62 90.4
407.16 4.77 90.8
423.36 4.93 91.2
439.64 5.09 91.6
425.00 4.51 100.0
443.04 4.68|100. 4
461.16 4.84100.8
479.36 5.00[101. 2
497.64 5. 16101.6
475.00 4.56
495.04 4.73
515.16 4.89
6.0
72.0
6.2 72.4
6.4 72.8
6.6 73.2
6.8 73.6
396.00 5.14 82. 0
410.44 5.29 82.4
424.96 5.44 82.8
439.56 5.59) 83.2
454.24 5.73 83.6]
456.00 5.24 92.0
472. 44 5.40 92.4
488.96 5.55 92.8
505.56 5.70 93.2
522.24 5.85 93.6
516.00 5.32102. 0
534.44 5.48102. 4
552.96 5.64 102. 8
571.56 5.79|103. 2
590. 24 5.95 103.6
535.36 5.06
555. 64| 5.22
576.00 5.38
596.44 5.55
616.96 5.71
637.56 5.87
658.24 6.03
7.0
8.5
9.0
16 — DO
74.0
7.5 75.0
8.0 76.0
469.00 5.88 84. 0|
506. 25 6.23 85.0
544.00 6.58 86.0
77.0 582.25 6.93 87.0
78.0 621.00 7.27 88.0
539.00 6.00 94.0
581.25 6.37 95.0
624.00 6.74 96.0
667.25 7.10 97.0
711.00 7.45 98.0
609.00 6.10 104. 0
656.25 6.48 105. 0
679.00 6.18
731.25 6.58
704.00 6.86106. 0
784.00 6.96
752. 25
801.00
9.5 79.0
10.0 80.0
660.25 7.60 89.0
700.00 7.93 90.0
90.0
755.25 7.80 99.0
800.00 8. 14100. 0
7.23 107.0
7.60 108.0
850.25 7.96₤109.0 945. 25 8.09
900.00 8.31 110. 01, 000. 00 8.45
837.25 7.34
891.00 7.72
10.5 81.0
950.25 8.66111. 01, 055. 25 8.82
740.25 8.25 91.0
845. 25 8. 48101.0
128
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
до T
A
T T
A
T
А
0.2 100.4
20.04 0.20 110. 4
0.4 100.8
40. 16
.40 110.8
44. 16
22.04 0.20 120.4
.40 120.8
24.04 0.20 130.4
26.04 0.20
48.16.40 130.8
52.16 .40
0.6 101.2
60.36
.59 111. 2
66.36
59 121.2
·
0.8 101.6
80.64.79111.6
88.64
.79 121.6
72.36
96.64
.59 131. 2|
78.36 .60
.79 131.6
104.64
.79
1.0 102.0
1,2 102.4
1.4 102.8
101.00 .98 112.0
121.44 1.17112, 4
141.96 1.37 112.8
1.6 103.2
1.8 103.6
183. 24 1.71 113.6
2.0 104.0
2.2 101.4
2.4 104.8
2.6 105. 2
2.8 105.6
204.00 1.93 114.0
224.84 2. 12 114. 4
245.76 2.30114. 8
266.76 2.48 115. 2
287.84 2.67 115. 6
162.56 1.56 113. 2
.98 122. 0
111.00
133.44 1. 18122. 4|
155.96 1.37 122.8
178.56 1.56 123. 2
201. 24 1.75 123. 6
201.24 1.75 123.6
224.00 1.94 124.0
246.84 2.12124. 4|
269.76 2.31|124.8
292.76 2.49|125. 2
315.84 2.68 125.6
121.00.99|132.0
145.44 1. 18132. 4|
169.96 1.37 132. 8
194.56 1.56133. 2
219.24 1.75 133. 6
131.00 .99
157.44 1.18
183.96 1.37
210.56 1.57
237.24 1.76
244.00 1.94 134.0
264.00 1.95
268.84 2. 13 134. 4
293.76 2.32|134.8|
318.76 2.50 135. 2
290.84 2.14
317.76 2.32
344.76 2.51
343.84 2.69 135. 6
371.84 2.70
3.0 106.0
309.00 2.85 116.0
3.2 106.4 330. 24 3.03|116.4
3.4 106.8
3.6 107.2
351.56 3.21 116.8
372.96 3.38 117. 2
339.00 2.86|126.0
362. 24| 3.04|126. 4
385.56 3.22 126. 8,
408.96 3.40|127. 2|
369.00
2.87 136. 0
399.00 2.88
394. 24
3.05 136.4
426. 24 3.07
419. 56
3.24 136. 8
453.56 3.25
444.96
3.42|137. 2
480.96 3.43
3.8107.6
394. 44 3. 56 117.6
432, 44
3.58127. 6.
470.44
3.60 137.6
508.44 3.61
4.0 108.0
4.2 108.4
4.4 108.8
4.6 109.2
4.8 109.6
416.00 3.74118. 0
437.64 3.91 118. 4
459.36 4.09 118. 8
481.16 4.26|119. 2|
503.04 4.43 119.6
456.00
3.76 128. 0
496.00
3.78138. 0
536.00 3.79
479. 64
3.94 128. 4
521. 64
3.96 138. 4
563.64 3.97
503. 36
4. 11128. 8
527. 16
551.04
4.29 129. 2
4.46 129.6
547. 36 4. 13 138. 8
573. 16 4.31139. 2
599.04 4.48139. 6
591.36 4. 15
619. 16 4.33
647.04] 4.51
5.0 110.0
5.2 110.4
5.4 110.8
5.6 111.2
5.8 111.6
6.0 112.0
6.2 112.4
6.4 112.8
6.6 113.2
6.8 113.6
636.00 5.44|122. 0)|
658.44 5.60【122. 4
680.96 5.77 122. 8
703.56 5.93 123.2
726. 24 6.09 123.6
7.0 114.0
7.5 115.0
8.0 116.0
8.5 117.0
9.0 118. 0
525.00 4.60 120.0
547.04 4.77 120.4]
569. 16 4.94 120.8
591.36 5. 11121. 2
613.64 5.27 121. 6
575.00 4.63 130.0
599.04 4.80 130.4
623. 16 4.97 130.8
647.36 5. 14131.2
671.64 5.31 131. 6
696.00 5.48 132. 0
720.44 5.65|132.4
744.96 5.82 132.8|
769.56 5.98 133.2
794. 24 6. 15133. 6
819.00 6.31 134.0
881.25 6.72 135.0
749.00 6.25 124.0
806. 25 6.65 125.0
864.00 7.05|126. 0
864.00 7.05 126.0 944.00
922. 25 7.44 127. 01, 007. 25
981.00 7.82 128. 01, 071. 00
9.5 119. 01, 040. 25)
10.0 120. 01, 100. 00
8. 20₤129. 01, 135. 25
8. 57 130. 01, 200. 00
625.00 4.66|140.0|
651.04 4.83140. 4
677.16 5.01 140.8
703. 36] 5. 18|141. 2
729. 64 5.35 141.6
756.00 5.52 142.0
782. 44
808.96
835. 56
862.24
7. 12136. 01, 024. 00
7. 51 137.01, 092. 25
7. 91 138. 01, 161. 00
8. 29139. 01, 230. 25]
8. 68 140. 01, 300. 00
6.36₤144. 0
6.77 145. 01, 031. 25
7. 18146. 01, 104. 00
7. 58 147. 01, 177. 25
7. 98 148. 01, 251. 00 8.05
6.82
7.23
7.64
8. 38[149. 0|1, 325. 25| 8. 45
8. 77 150. 01, 400.00 8.84
675.00 4.68
703.04 4.86
731.16 5.03
759.36 5.21
787.64 5.38
816.00 5.55
5. 69|142. 4]
844.44 5.72
5.86|142, 8
872.96 5.89
6.03 143.2
901.56 6.06
6.19143.6
930.24 6.23
889.00
956. 25
959.00 6.40
10.5 121.01, 160. 25
9. 15/151. 01, 475. 25 9.24
8. 95131. 01, 265. 25
9.06 141.01, 370. 25
HYDRAULIC TABLES
129
Table 8.—Area
8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T T
A
T
A
T T
A
g
0.2 140.4
0.4 140.8
0.6 141.2
0.8 141.6
28.04
0.20 150. 4
30.04
0.20 160. 4
32.04 0.20 170.4
34.04 0.20
56. 16
.40 150.8
60. 16
.40 160.8
64. 16
.40 170.8
68.16
.40
84.36
.60 151.2
90.36
.60 161.2
96.36
60 171, 2
102.36 .60
112.64
.79 151.6
120.64
.79 161. 6
128.64
79 171.6
136. 64
.79
1.0 142.0
1.2 142.4
1.4 142.8
1.6 143. 2
1.8 143.6
2.0 144.0
2.2 144.4
2.4 144.8
2.6 145.2
2.8 145.6
141.00 .99 152.0
169.44 1.18 152. 4
197.96 1.38 152.8
226.56 1.57 153. 2
255.24 1.76 153.6
284.00 1.95 154.0
312.84 2. 14154.4
341.76] 2.33 154.8
370.76 2.52 155. 2
399.84 2.70 155.6|
151.00 .99 162.0
181.44 1. 18|162. 4|
211.96 1.38 162, 8
242.56 1.57 163. 2
273. 24 1.76 163. 6
161.00
.99 172.0
193.44 1.18|172, 4|
225.96 1.38172.8
258.56 1.57 173.2
291.24 1.76173. 6
274.56 1.57
309. 24 1.77
171.00 .99
205.44 1.18
239.96 1.38
304.00 1.95 164.0
334.84 2. 14|164. 4|
365.76 2.33 164. 8
396.76 2.52|165. 2|
427.84 2.71 165. 6
324.00 1.96 174.0
356.84 2.15|174. 4|
389.76 2.34|174. 8
422.76
455.84
2.53 175. 2
344.00 1.96
378.84 2. 15
413.76 2.34
448.76 2.53
2.71 175. 6
483.84 2.72
3.0 146.0
429.00 2.89 156.0
3.2 146.4
458.24 3.07 156. 4
3.4 146.8
487.56 3.26 156.8
3.6 147.2
3.8 147.6
516.96 3.44 157. 2
546.44 3.62|157, 6
4.0 148.0
576.00 3.81 158.0
4.2 148. 4
605.64 3.99158.4
4.4 148.8
635.36 4. 17158.8
4.8 149.6
4.6 149.2 665.16 4.35 159. 2
695.04 4.53 159.6
5.0 150.0
725.00 4.70|160.0
775.00 4.72170.0
5.2 150.4
5.4 150.8
755.04 4.88160.4
785.16 5.06 160.8
5.6 151. 2
5.8 151.6
815.36 5.23 161, 2
845.64 5.41|161. 6
6.0 152.0
6.2 152.4
6.4 152.8
6.6 153. 2
6.8 153.6
459.00 2.90 166. 0
490.24 3.08 166. 4|
521.56 3.27|166.8|
552.96 3.45 167. 2
584.44 3.64|167. 6
616.00 3.82168.0
647.64 4.00 168. 4
679.36 4. 18|168.8
711. 16 4.36 169.2||
743.04 4. 54 169. 6
807.04 4.90 170.4
839.16 5.08 170.8
871.36 5.25 171.2
903. 64
936.00
968. 44
876.00 5.58|162. 0]
906.44 5.75 162.4
936.96 5.93 162. 81, 000. 96
967.56 6. 10|163. 21, 033. 56
998.24 6. 27 163. 61, 066. 24
7.0 154. 01, 029. 00
7.5 155. 01, 106. 25
8.0 156. 01, 184.00
156.01,
8.5 157.01, 262. 25
9.0 158.01, 341. 00
9.5 159.01, 420. 25
10.0 160.01, 500.00
6. 44 164. 01, 099.00
6.86 165. 01, 181. 25
7.28|166. 01, 264. 00|
7.69 167.01, 347. 25
8. 10|168. 0|1, 431. 00|
8. 51 169. 01, 515. 25
8.91 170. 01, 600.00
825.00 4. 74|180, 0]
825.00 4.74180.0
859.04 4.92180. 4
5.61 172.0
5. 78|172. 41, 030. 44
5.95 172. 81, 064. 96
6. 13 173. 21, 099. 56|
6. 30 173. 61, 134. 24
6.47 174.01, 169.00
6.90 175.01, 256. 25
7.32176.01, 344. 00
7.74 177.01, 432. 25
8.16|178.0|1, 521. 00
8. 57179. 01, 610. 25
8.97180.01, 700.00
5.63 182. 01, 056.00
5.80 182. 41, 092. 44
5.98 182. 81, 128. 96|
6. 15183. 21, 165. 56
6. 33 183. 61, 202. 24
5.65
5.83
6.00
6. 18
6.35
6.50 184. 01, 239.00 6. 53
6. 93 185. 01, 331. 25 6,96
7. 36186. 01, 424.00 7.39
7.36|186.0|1,
7.78 187.01, 517. 25 7.82
8. 20188. 01, 611.00| 8, 24
8. 62 189. 01, 705. 25 8.66
9. 03190. 01, 800.00 9.08
489.00
2.90 176. 0
519.00 2.91
522.24
3.09 176, 4
554. 24 3. 10
555.56
3.28 176.8
589.56 3.28
588.96 3.46 177. 2
622. 44
624.96 3.47
3.65|177.6|
660.44 3.65
656.00 3.83 178.0
696.00 3.84
689.64 4.01 178. 4
723. 36 4. 19178.8
757, 16| 4.38|179. 2
791.04 4.56 179.6
731.64 4.02
767.36 4.21
803. 16 4.39
839.04 4.57
875.00 4.75
911.04 4.93
893. 16
927.36
5.43 171. 6
961. 64
5. 10 180.8
5. 27|181. 2
5. 45181. 61, 019. 64
947. 16 5. 11
983.36 5.29
5.47
996.00
10.5 161. 01, 580. 25
9. 44191. 01, 895. 25 9.49
9.31|171.01, 685. 25
9. 38181.01, 790. 25
38/181.
130
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
g
T
A
↑
0.2
180.4
36.04
0.20
190. 4
38.04
0.20
200.4
40. 04
0.20
0.4
180.8
72.16
.40
190.8
76.16
.40
200.8
80.16
.40
0.6
181. 2
108.36
.60
191.2
114. 36
.60 201.2
120.36
.60
0.8
181.6
144.64
.79
191.6
152.64
.79
201.6
160.64
.79
1.0
182. 0
181.00
.99
192.0
191.00
.99
202.0
201.00
.99
1.2
182.4
217.44
1. 19
192. 4
229.44
1.19
202.4
241. 44
1. 19
1.4
182.8
253.96
1.38
192.8
267.96
1.38
202.8
281.96
1.38
1.6
183.2
290.56
1.57
193. 2
306.56
1.58
203. 2
322. 56
1.58
1.8
183.6
327.24
1.77
193.6
345. 24
1. 77
203.6
363. 24
1.77
2.0
184.0
364.00
1.96
194. 0
384.00
1.96
204.0
404.00
1.96
2.2
184.4
400.84
2. 15
194.4
422.84
2. 15
204.4
444. 84
2. 16
2.4
184.8
437. 76
2.34
194.8
461. 76
2.35
204.8
485. 76
2.35
2.6
185.2
474.76
2.53
195. 2
500. 76
2.54
205.2
526. 76
2.54
2.8
185.6
511.84
2.72
195.6
539.84
2.73
205.6
567.84
2.73
3.0
186. 0
549.00
2.91
196.0
579.00
2.92
206.0
609.00
2.92
3.2
186.4
586. 24
3. 10
196.4
618. 24
3. 11
206.4
650. 24
3. 11
3.4
186.8
623. 56
3.29
196.8
657.56
3.29
206.8
691. 56
3.30
3.6
187.2
660.96
3.48
197.2
696.96
3.48
207.2
732.96
3.49
3.8
187.6
698. 44
3.66
197.6
736.44
3.67
207.6
774. 44
3.67
4.0
188.0
736.00
3.85
198. 0
776.00
3.85
208. 0
816.00
3.86
4.2 188.4
773.64
4.03
198.4
815. 64
4. 04
208. 4
857.64
4.05
4.4
188.8
811.36
4. 22
198.8
855.36
4.23
208.8
899.36
4. 23
4.6
189.2
849. 16
4.40
199. 2
895. 16
4. 41
209. 2
941. 16
4. 42
4.8
189.6
887.04
4.58
199.6
935. 04
4.59
209.6
983.04
4.60
5.0
190.0
925.00
4.76
200.0
975.00
4.78
210.0 1,025. 00
4.79
5.2
190. 41
963. 04
4.95
200. 41,015. 04
4.96
210.4 1,067.04
4.97
5.4
190.8 1,001 16
5. 13
200.8 1,055. 16
5. 14
210.8 1, 109. 16
5. 15
5.6
191. 2 1,039. 36
5. 31
201. 2 1,095. 36
5.32
211. 2 1, 151.36
5.33
5.8
191. 61, 077. 64
5. 49
201.6 1, 135. 64
5.50
211.6 1, 193. 64
5.52
6.0
192. 0 1, 116. 00.
5. 67
202. 01, 176.00
5.68
212.01, 236.00
5.70
6.2
192. 4 1, 154. 44
5.84
202.4 1,216. 44
5.86
212. 4 1, 278. 44
5.88
6.4
192.8 1, 192. 96
6.02
202.8 1, 256. 96
6.04
212.8 1, 320.96
6.06
6.6
193. 2
1, 231. 56
6. 20
203. 2
1, 297.56
6. 22
213.2 1,363.56
6. 24
6.8
193. 6
1, 270. 24
6.38
203. 6
1, 338. 24
6.40
213.6 1, 406. 24
6.41
7.0
194. 0
1,309. 00
6.55
204. 0 1, 379, 00
6. 57
214. 0 1, 449. 00
6.59
7.5
195.0 1,406, 25
6.99
205. 01, 481. 25
7.01
215. 01, 556.25
7.04
8.0
196. 0
1,504. 00
7.42
206.0 1, 584. 00
7.45
216. 0 1,664, 00|
7.47
8.5
197.0
1.602. 25
7.85
207.01, 687. 25
7.88
217.0 1,772. 25
7.91
9.0
198.0 1,701. 00
8.28
208.0 1, 791. 00
8.31
218.0 1,881.00
8.34
9.5
•
199.0 1,800. 25
8.70
209.0 1,895. 25
8.74
219. 0 1,990. 25
8.77
10.0
200.0 1,900. 00
9.12
210.0 2,000. 00
9. 16
220.0 2, 100. 00
9.20
10.5 201.0 2,000. 25
9.62
9.54
221.0 2,210.25
211. 0 2, 105. 25
9.58
HYDRAULIC TABLES
131
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
до
T
A
*
gr
T
A
T T
A
g
11.0
12.0
24.0
26. 0
13.0
28.0
14.0
30.0
143.0 4.32] 25.0
168.0 4.67 27.0
195.0 5.03 29.0
224.0 5.38 31.0
154.0 4.51| 26.0
180.0 4.87| 28.0
208.05.23 30.0
238.05.59| 32.0|
165.0 4.70 27.0
192.0 5.06] 29.0
221.05.42 31, 0
252,0 5.78 33.0
176.0 4.87
204.05.24
234.0 5.60
266.0 5.96
15.0 32.0
255.05.74 33.0
16.0 34.0
288.0 6.09 35. 0
270.0 5.94 34.0
304.0 6.30 36.0
17.0 36.0
323.0 6.45] 37.0
340.0 6.66 38.0
18.0 38.0
19.0 40.0
360.0 6.80 39.0
399.0 7.16 41.0
378.0 7.01 40.0
418. 0 7.37 42.0
285.0 6.14 35.0
320.0 6.50 37.0
357.0 6.85 39.0
396.0 7.21 41. 0
437.0 7.57 43.0
300.0 6.33
336.0 6.69
374.0 7.05
414.0 7.40
456.0 7.76
20.0 42.0
21.0 44.0
22.0 46.0
23.0
48.0
24.0
50.0
440.0 7.51 43. 0
483.0 7.87 45. 0
528. 08. 22 47.0
575.0 8.58 49.0
624.0 8.93 51.0
460.0 7.72|| 44.0
504. 08.08 46.0
550.0 8.43 48.0
598.0 8.79 50.0
648.0 9.14| 52.0
480.0 7.92 45. 0
525. 08. 281 47.0
572,0 8.64 49.0
621,0 8.99] 51.0
672.0 9.35 53.0
594.0 8.84
644.09.19
696.0 9.55
500.0 8.12
546.0 8.48
25.0
52.0
675.0 9.28 53.0
26.0
54.0
27.0
56. 0!
728.0 9.64 55.0
783.0 9.99 57.0
28.0
58. 0
840.0 10. 35
59.0
29.0
60.0
899. 0 10.70
61. 0
700.0 9.50 54.0
754.0 9.85 56.0
810.0 10. 21|
868.0 10. 56
928. 0 10.91
58.0
60.0
725.0 9.70| 55.0
780.010.06 57.0
837.0 10.41
896. 0 10.77
750.0 9.91
806.0 10.26
59.0
864. 0 10.62
61.0|
924. 0 10.97
62.0
957.0 11. 12
63.0
986. 0 11. 33
30.0
62.0
960. 011. 051
63. 0
990. 0 11. 27
64. 0
1,020. 011. 48
65. 0
1,050. 011. 69
31.0
64. 01, 023. 011. 41
65. 0
32.0
66. 01, 088. 0 11. 76
67. 0
33.0
68. 01, 155. 012. 11
69. 0
34.0
70. 01, 224. 012. 47
71. 0
1, 054. 011. 62
1, 120. 011. 98
1, 188. 012. 33
1, 258. 012. 69
66. 0
1,085. 011. 83
67.0
1, 116.0 12. 04
68. 0
1, 152. 012. 19
69. 0
1, 184. 0|12. 40
70.0
72. 0
1, 221. 012. 54
1, 292. 012. 90|
71.0
73. 0
1, 254. 012. 75
1,326. 0/13. 11
35.0
72. 01, 295. 012. 82
73. 0
36.0
74. 01, 368. 0 13. 18
75.0
37,0
76. 01, 443. 013. 53
77. 0
38.0
39.0
78. 01, 520. 013. 88
80.01, 599. 014. 24
79.0
81.0
1, 330. 0 13.04
1, 404. 0 13. 39
1, 480. 013. 75
1, 558. 014. 10
1, 638. 014. 46
74. 0
76.0
1, 365. 0 13. 25
1,440.0 13. 61
75. 0
1, 400. 0 13. 46
77. 0
1, 476. 0 13. 82
78.0
1, 517.013. 96
79. 0
1, 554. 014. 17
80.0
82. 0
1, 596. 014. 32
1,677. 0|14. 67
81. 01, 634. 014. 53
83.0
1,716. 014. 88
41.0
40.0 82.01, 680. 014. 59
84. 01, 763. 014. 95
83. 0
1,720. 014. 81|
84. 0
1,760. 015. 03|
85.0
1,800. 015. 24
85. 0
1,804. 015. 16
86. 0|
1,845. 0|15. 38
87.0
1,886. 0 15. 59
42.0
86. 01, 848. 0 15. 30
87.0
1,890. 015. 52
88.0
1,932. 015. 73
89.0
1,974. 0 15. 95
43.0
88. 01, 935. 015. 65
89.0
44.0
90. 02, 024. 016. 01
91.0
1, 978. 0 15.87
2,068. 0 16. 23
90.0
92.0
2, 021. 016. 09
2, 112. 016. 44
91.0
2,064. 016. 30
93.0
2, 156.0 16. 65
45.0
92. 02, 115.0 16. 36
93. 0
46,0
47.0
94. 02, 208. 016. 71
96. 02, 303. 0 17.07
48.0 98. 02, 400.0 17. 42 99.0
49.0 100.0 2,499. 017. 77 101. 0
95.0
97.0
2, 160. 016. 58 94.0
2, 254. 016. 93 96.0
2, 350. 017. 29 98.0
2, 448. 0 17. 64 100. 0
2, 548. 0|18.00 102. 0
2, 205. 016. 80
2, 300. 017. 15 2,346. 0 17. 36
2,397.0 17.50 99.0| |2, 444. 017.72
2, 496. 0 17.86 101. 0 2, 544. 018. 07
2, 597. 0 18. 21|103. 0| 2, 646. 0₤18. 43
95. 0
97.0
2, 250.0 17. 01
50.0 102. 02, 600. 018. 13 103. 0
2, 750. 018. 78
2, 650. 018. 35 104. 0
3510
2,700. 0 18. 57 105. 0
132
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued
T, and

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
A
હ્ર
T
A
↑
T
A
T
11.0 28.0
12.0 30.0
13.0 32.0
14.0
34.0
15.0
36.0
187.0 5.04 29.0
216.0 5.41 31.0
247.0 5.78 33.0
280.0 6. 14 35.0
315.0 6.50 37.0
198.0 5.20 30.0
228.0 5.57 32.0
260.0 5.94 34. 0
209.0 5.34 31. 0
240.0 5. 72 33.0
220.0 5.48
252.0 5.87
273.0 6.10 35.0
286.0 6. 25
294.0 6.31 36.0
308.0 6.47 37.0
322.0 6.63
16.0
38.0
17.0 40.0
18.0 42.0
19.0 44.0
20.0 46.0
21.0 48.0
22.0 50.0
352.0 6.87 39.0
391.0 7.23 41.0
432.0 7.59| 43.0
475.0′ 7.95 45.0
330.0 6.68] 38.0
368. 07.04 40. 0
408.0 7.41 42.0
450.0 7.77| 44.0
494.0 8.13) 46. 0
345.0 6.84 39. 0
384.0 7.21| 41, 0j
425.0 7.58 43.0
468.0 7.94 45. 0
513.0 8.31 47.0
360.0 7.00
400.0 7.37
442.0 7.74
486.0 8.11
532.0 8.48
520.08.31 47.0
567.0 8.67 49.0
616.09.03| 51.0
23.0 52.0
667.0 9.39 53.0
24.0
54.0
720.0 9.75 55.0
540.0 8.49 48.0
588.0 8.86 50.0
638.0 9.22|| 52.0
690.0 9.58 54.0
744.09.94 56.0
560.0 8.67 49. 0
609.09.04 51.0
660.0 9.40 53.0
713.0 9.76 55.0
768.0 10. 12 57.0
580.0 8.85
630. 09. 21
682.0 9.58
736.0 9.94
792. 010. 30
25.0
56. 0
775. 010. 10 57.0
26.0
58.0
27.0
60.0
28.0 62.0
29.0
832.010. 46 59. 0
891.0|10.82| 61. 0
952.0 11. 17
64. 01, 015. 011. 53
63.0
65.0
800.0 10. 29| 58.0
858.0 10.65 60.0
918. 011. 01 62.0
980. 011. 37 64. 0
1,044. 011. 73
825. 010. 48
59. 0
850.0 10. 66
884. 010. 84
61.0
910. 011.03
945. 011. 20
63.0
972. 011, 39
66. 0
1, 008. 011. 56
1,073. 011. 92
65.0
1,036. 011. 75
67. 0
1, 102. 012. 11
30.0
66. 01, 080. 011. 89
67. 0
31.0
68. 01, 147. 012. 24
69.0
32.0
70.01, 216. 012. 60
71. 0
1, 110. 012. 08
1, 178.012. 44
1, 248. 0 12. 80
68. 0
70.0
33.0
34.0
72.01, 287.0 12. 96
74. 01, 360. 013. 31
73. 0
1, 320. 013. 16
74. 0
75.0
1, 394. 013. 51
76. 0
1, 140. 012. 28
1, 209. 012. 64
72. 01, 280.012. 99
1, 353. 013. 35
1, 428. 0 13.71
69. 0
1, 170. 012. 47
71.0
1, 240. 012. 83
73. 0
1, 312. 013. 18
75.0
1, 386. 013. 54
77.0
1, 462. 013. 90
37.0
35.0 76. 01, 435. 013. 67
36.0 78. 01, 512. 014. 02
80. 01, 591. 014. 38
77.0
79. 0
81.0
1, 470. 0 13. 87
1, 548. 014. 22
1,628. 014. 58
78. 0
1, 505. 014. 07
79. 0
1, 540. 014. 26
80. 0
1, 584. 014. 42
81. 0
1, 620. 014. 62
82. 0|
1, 665. 0|14. 78|
83. 0|
1, 702. 0|14. 98
38.0
82. 01, 672. 014. 73
83. 0
39.0
84. 01, 755. 015. 09
85.0
1, 710. 014. 94
1,794. 015. 29
84. 0
86. 0
1, 748. 015. 14
1, 833. 015. 49
85. 0
1, 786. 015. 33
87.0
1,872. 015. 69
40.0
41. 0
42.0
43. 0
44.0
86. 01, 840. 015. 44 87. 0 1, 880. 015. 65 88. 0
88. 01, 927. 015. 80 89.0 1, 968. 0 16. 00 90.0
90. 02, 016. 016. 15 91.0 2, 058. 016. 36|| 92. 0
92. 02, 107. 016. 51 93. 0 2, 150. 016. 72 94. 0
94. 02, 200. 016. 86 95.0| |2, 244. 017. 07|| 96. 0
45,0 96. 02, 295. 017. 22 97.0
46.0 98. 02, 392. 017. 57 99. 0
47.0 100.02, 491. 017. 93101. 0
48.0 102. 02, 592. 018. 28 103. 0
49.0 |104. 02, 695. 0|18. 64 105. 0
1,920. 015. 85
2, 009. 016. 21
2, 100. 016. 56
2, 193. 016. 92
2, 288. 0₤17. 27
89. 0
1,960. 016. 05
91.0
2,050. 016. 40
93. 0
2, 142. 016. 76
95.0
2, 236.017. 12
97.0
2, 332. 017. 47
2, 385. 017. 63
2, 484. 017. 99 101. 0
2, 340. 017. 43 98. 0
2, 438. 017. 78 100. 0
2, 538. 018. 14102. 02, 585. 018. 34103. 0
2, 640. 018. 49 104. 0 2, 688. 018. 70 105. 0
2, 744. 018. 85106. 0 2, 793. 019. 05|107. 0
2, 430. 017. 83
2, 530. 018. 19
2, 632. 018. 54
2, 736. 0|18. 90
2, 842. 019. 26
99. 0
50.0 106. 02, 800. 018. 99 99107
2,950. 019. 61
2,850. 019. 20 108. 02, 900. 019. 41109. 0
107. 0
HYDRAULIC TABLES
133
feet,
Table 8.-
8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued
T, and
T,

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
T
A
Τ T
A
до T
A
T
11.0
32.0
12.0
34.0
231.0 5.62 34.0
264.0 6.01 36. 0
13.0
36.0
299.0 6.39 38.0
253.0 5.87 36.0
288.0 6.27] 38. 0
325.0 6.66 40.0
14. 0
38.0
336.0 6.77 40.0
364.0 7.05 42.0
275.0 6.10 38.0
312.0 6.51 40.0
351.0 6.91 42.0
392.0 7.31 44. 0
297.0 6.30
336.0 6.73
377.0 7.14
420.0 7.55
15.0
40.0
375.0 7.15| 42.0
405.0 7.44 44.0
16.0
42.0
17.0
44. 0
18.0
46.0
19.0
48.0
416.0 7.53| 44.0|
459.0 7.90 46. 0
504.0 8.27 48.0
551.0 8.64 50.0
448.0 7.82 46. 0
493. 08. 21 48. 0
540.0 8.58 50.0
589.0 8.96 52.0
435.0 7.71] 46.0
480.0 8.10] 48. 0
527.0 8.49 50.0
576.0 8.87 52.0
627.0 9.26 54.0
465.0 7.96
512.0 8.36
561.0 8.75
612.0 9.15
665.0 9.54
20.0
50.0
600.0 9.01 52.0
21.0
52.0
651.0 9.38
54. 01
22.0
54. 0
704.09.75 56. 0
23.0
56. 0
759.0 10. 11
58. 0
24.0
58.0
816. 0 10. 48
60.0
640.0 9.33 54.0
693.0 9.71 56.0
748.0 10.08 58.0
805. 010. 45 60.0
864.0 10.82 62.0
680.0 9.64
56. 0
720.0 9.92
735. 010. 01
58. 0
777.0 10. 31
792.0 10.39
60.0
836.0 10.69
851. 010. 76
62.0
897.0 11.07
912. 011. 14
64.0
960.0 11.44
25.0 60.0
875.0 10.84
62.0
925. 011. 18
64.0
26.0 62.0
936.0 11. 20]
64.0
27.0
64.0
999.0 11. 57
66. 0
28.0
66. 01, 064. 011. 93
68. 0
29.0
68. 01, 131.0 12. 29
70.0
988. 0 11.55
1, 053. 011. 92
1, 120. 012. 28
1, 189. 0|12. 65
66. 0
975.0 11.51
1, 040. 011. 88
66.0
1,025.0 11.82
68. 0
1,092. 0 12. 20
68.0
1, 107. 012. 25
70.0
1, 161.0 12. 57
70.0 1, 176. 012. 62
72.0|| 1, 247. 0|12. 99
72.0
1, 232. 0 12. 94
74. 0|| 1, 305. 0|13. 31
30.0
31.0
70. 01, 200. 012. 65
72. 01, 271. 0 13. 01
72.0
1,
74. 0
32.0
74. 01, 344. 0 13. 37
76. 0
33.0
76. 01, 419.0 13.73
78. 0
34.0
78. 01, 496. 014. 09
80. 0
1. 260. 013. 01
1, 333. 0 13. 37 76.0
1, 408. 013. 74
1, 485. 0 14. 10
1, 564. 014. 46
74.0
78.0
1,320.0 13. 35
1, 395. 013. 72
1, 472. 014. 08
76.0
1, 380. 0 13.68
78. 0
1, 457. 0 14. 05
80.0
1, 536. 014. 42
80.0
82.0
1, 551. 0 14. 45
1, 632. 014. 81
0|14.
82. 0
1, 617. 0 14. 79
1,617.014.
84. 0
1,700. 015. 16
35.0
36.0
80.01, 575. 014. 45
82. 01, 656. 014. 81
37.0 84. 01, 739. 015. 17
82. 0
1, 645. 014. 82
84. 0
1,715. 015. 18
86. 0
1,785. 0|15. 52
84.0
86. 0
38.0
86. 01, 824. 015. 53
88. 0
39.0
88. 01, 911. 015. 88
90.0
1, 728. 0 15. 18
1, 813. 015. 54
1,900. 015. 90
1, 989. 0 16. 26
86. 0
88.0
1,800. 015. 54
1,887.0|15.90|
88. 0
1,872. 015. 89
90. 0|
1, 961. 0 16. 25
90.0
40.0
90.02,
90. 02, 000. 016. 24
92.0
41.0
92. 02, 091.0 16. 60
94. 0
42.0 94. 02, 184. 016. 96
43.0 96. 02, 279.0 17.31 98.0
44.0 98. 02, 376. 017. 67 100.0
96. 0|
2,080. 016. 62 94.0
2, 173. 0 16. 98 96.0
2, 268. 0 17. 34 98.0
2, 365. 017. 70 100.0
2, 464. 018. 06102. 0
45.0 100.0 2, 475. 018. 03 102. 0
46.0 102. 02, 576. 0 18. 39 104. 0
47.0 104.02, 679. 018. 74106. 0
48.0 106. 02, 784. 019. 10 108. 0
49.0 108. 02, 891. 0 19. 46 110.0
2, 565. 018. 42 104. 0
2, 668. 0 18. 77 106. 0
2,773. 019. 13 108. 0
2, 880. 0 19. 49 110.0
2, 989. 019. 85112. 0
2, 160. 016. 99
2, 255, 017. 35
2, 352. 017. 71 100.0
2, 451. 0 18. 07 102. 0
2, 552. 018. 43 104. 0
2, 145. 0 16. 98
96. 0 2, 240.0 17. 35
98. 02, 337. 0 17.71
2, 436. 0 18. 07
2, 537.0 18. 43
2, 640.0 18.80
2, 655. 0 18. 79 106. 0
2, 760. 019. 15 108. 0
2, 867.019. 51 110. 0
2,976.019. 87 112. 0
3, 087. 0 20. 23 114.0
2, 745. 019. 16
2, 852. 0 19. 52
2, 961. 0 19.88
3, 072.0 20. 24
3, 185. 020.60
92.0
1, 976. 016. 27
2,067.0 16. 63
92.0
2,052. 0 16. 62
0|16.
94.0
50.0 110. 03, 000. 019. 81 112. 0
811
96
3, 100. 0 20. 21 114. 0
0/20.
3,200.0 20. 59116.0
3, 300.
134
HYDRAULIC TABLES
Table 8.-Area in square feet, A,
feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
.
T
A
T T
A
T
A
T
46.0
11.0 40.0 319.0 6.50 42.0
12.0 42.0
13.0 44.0
14.0
15.0 48.0
360.0 6.93| 44.0|
403. 0 7.36| 46.0
448.0 7.78 48.0
495.0 8.19 50.0
16.0 50.0
544.0 8.60 52.0
17.0 52.0
595.0 9.00] 54.0
18.0
54.0
648.0 9.40] 56.0
19.0
56.0
703.0 9.80 58.0
341.0 6.67 44.0
384.0 7.12 46.0
429.0 7.56 48.0
476.0 7.99 50.0
525.0 8.41 52.0
576.0 8.83 54.0
629.0 9.24 56.0
684.0 9.65 58.0
741.010.05| 60.0
363.0 6.83 46.0
408.0 7.29 48.0
455.0 7.74 50.0
504.08.18 52.0
385.0 6.99
432.0 7.46
481.0 7.92
532.0 8.37
555.0 8.61 54.0
608.0 9.04 56. 0
585.0 8.81
640.0 9.24
663.0 9.46 58.0
720.0 9.87 60.0
779.0 10.29
697.0 9.67
756.0 10.09
62.0
817.0 10. 51
20.0 58.0
21.0 60.0
22.0
62.0
23.0
64.0
760.0 10. 19 60.0
819.010.58 62.0
880.0[10.97] 64.0
943. 011. 35 66.0
800.0 10. 45 62.0
861.0 10.84 64.0
924.0 11. 24 66.0
840. 010, 69
64.0
880.0 10.92
903. 0 11.09
66,0
945.0 11. 33
968.0 11.49
68. 0
1,012. 011. 74
989.0 11.63
24.0
66. 01, 008. 011. 74
68.0
1,056. 0 12.02
68.0
70.0
1,035. 011. 89
70.0
1, 081. 012. 14
1, 104. 012. 28
72.0
1, 152.0 12. 54
25.0
68. 01, 075.0 12. 12
70.0
26.0
70. 01, 144. 012. 50
72. 0
27.0
72. 01, 215. 012. 88
74.0
28.0
74. 01, 288. 0 13. 25
76.0
29.0
76. 01, 363. 013. 63
78.0
1,125.0 12. 40
1, 196. 0 12. 79
1, 269.0 13. 17
1, 344. 0 13. 55
1, 421.0 13. 93
72.0
1, 175.0 12. 67
74.0
1, 225. 0|12. 93
74.0
1, 248. 0 13.06
76.0
1,300.0 13. 33
76.0
1, 323. 0 13. 45
78.0
1,377.0 13. 72
78.0
1, 400. 013. 83
80.0
1, 456. 014. 11
80.0
1, 479. 014. 22
82.0
1,537.0 14.50
30.0
78. 01, 440.0 14.00
80.0
1, 500. 014. 31
82. 0
1, 560. 014. 60
84.0
1,620.0 14.88
31.0
80. 01, 519. 014. 37
82.0
32.0
82. 01, 600. 0 14.75
84.0
33. 0
34.0
84. 01, 683 015. 12
86. 01, 768.015. 49
86.0
88.0
1, 581.014. 68
1, 664. 015. 06
1, 749. 015. 43
1,836.0 15.80
84 0
1 643.014. 98
86.0
1,705. 015. 27
86. 0
88. 0
90.0
1, 728. 015. 36
1,815. 015. 74
1,904. 016. 11
88.0
1, 792. 015. 65
90.0
1, 881. 016. 03
92.0
1,972.0 16. 41
35.0
36.0
90.0 1, 925. 016. 18
92.0 2, 016. 016. 55
94.0 2, 109. 016. 92
96.0] 2, 204. 017. 29
2, 301. 0 17. 66 100.0
88.01, 855.0 15.86
90. 01, 944. 016. 22
37.0 92. 02, 035.0 16. 59
38.0 94. 02, 128. 0|16.96|
39.0 96. 02, 223. 0 17.33 98.0
40.0 98. 02, 320.0 17.69 100.0
41.0 100. 02, 419. 018. 06 102. 0
42.0 102. 02, 520. 018. 42 104. 0
43.0 104. 02, 623. 018. 79106. 0
44.0 106. 02, 728. 0|19. 15|108. 0
2, 400. 0 18. 03|102. 0
2, 501. 018. 39104. 0
2, 604. 018. 76106. 0
2, 709. 019. 13 108. 0
2, 816. 019. 49|110.0
45.0 108. 02, 835. 019. 51|110.0 2, 925. 019. 86 112.0
46.0 110. 02, 944. 019. 88|112. 03, 036. 020. 23114.0
47.0 112.03, 055. 0|20. 24|114.0 3, 149. 020. 59116.0
48.0 114.03, 168. 0 20. 60116. 0 3, 264.0 20. 95118.0
49.0 116.03, 283. 0 20. 97118. 0 3, 381. 021. 32120.0
2, 480. 0|18. 35|104. 0
2, 583. 018. 72 106. 0
2, 688. 0 19.03 108. 0
2, 795. 019. 46 110.0
2, 904. 019. 83 112.0
3,015. 020. 20114. 0
3, 128. 0 20. 56 116.0
3, 243. 0 20. 93 118. 0
3, 360.0 21.30 120. 0
3, 479. 021. 66 122.0
2, 560. 018. 67
2, 665. 019. 04
2, 772. 019. 41
2, 881. 019. 78
2,992.0 20. 15
3, 105.0 20. 52
3, 220.020.89
3, 337. 021. 26
3, 456. 021. 63
3, 577.0 22.00
92.0
94.0
96.0
98.0
1,995. 016. 49
2,088. 0 16. 86
2, 183. 017. 24 98.0
2, 280.017. 61|100.0
2, 379. 017. 98 102.0
94.0
96.0
2,065.0 16.79
2, 160. 017. 17
2, 257.0 17.54
2, 356. 0 17. 92
2, 457.0 18. 29
50.0 118.03, 400.0 21.33 120.0 3, 500.0 21.68 122.0
3,700.0 22.37
3,600.0 22.03124.0
HYDRAULIC TABLES
135
Table 8.-Area in
8.-Area in square
square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
↑
T
A
T T
A
j T
A
T
11.0 48.0
12.0 50.0
13.0 52.0
407.07.13 50. 0
456.0 7.61 52.0
507.0 8.08 54.0
429.0 7.26 52.0
480.0 7.75 54.0
533.0 8.23| 56.0
14.0 54.0
560.0 8.54 56.0
588.0 8.70 58. 0
451.0 7.38 54.0
504.0 7.88 56.0
559.0 8.37 58.0
616.0 8.85 60.0
473.0 7.49
528.0 8.01
585.0 8.51
644.0 8.99
15.0 56.0
16.0 58.0
17.0 60.0
615.0 8.99 58.0
672.0 9.431 60.0
731.0 9.87 62.0)
18.0 62.0
792.0|10.30 64.0
19.0
64.0
855.0 10.72 66.0
645.0 9.16 60.0
704.0 9.61 62.0
765. 010.05 64.0
828.010.49| 66.0
893.0[10.92 68.0
675.0 9.32 62.0
736.0 9.78] 64.0
799.0 10.23] 66.0]
864.0 10.68 68.0
931.0 11.12
705. 0 9.47
768.0 9.94
833.0 10.40
900.0 10.85
70.0
969. 0 11.30
20.0
66.0
920.0|11.14 68.0
21.0
68.0
987.011. 56
70. 0
22.0
70. 01, 056.0 11.97
72. 0
23.0
24.0
72. 01, 127.012. 38
74. 01, 200. 012. 78|
74.0
76.0
960. 011.35
1, 029. 011. 77
1, 100.0 12. 19
1, 173. 0|12. 61]
1, 248. 013. 02
70. 0
1, 000. 011. 55
72. 0
1,040. 011. 74
72. 0
74. 0
76. 0
78. 0
1,071. 011.98
1, 144. 012. 40
1, 219. 012.82
1, 296. 013. 24
74. 0
1, 113. 012. 18
76. 0
1, 188. 0 12. 61
78.0
80.0
1, 265. 013. 03
1,344. 013. 46
25.0
76. 01, 275. 013. 18
78.0
1, 325. 013. 42
80. 0
1, 375. 0 13. 65
82. 0
1, 425. 013. 87
26:0
78. 01, 352. 013. 58
80.0
1, 404. 013. 83
82. 0
1, 456. 014. 06
84. 0
1, 508. 0 14. 29
27.0
80. 01, 431.013. 98
82.0
28.0
29.0
82. 01, 512. 014. 37
84. 01, 595. 014. 77
84. 0
86. 0|
1, 485. 014. 23
1, 568. 0[14. 63
1, 653.0|15. 02
84. 0
1, 539. 014. 47
86. 0
1, 593. 014. 70
+
86. 0
1, 624. 0 14.87
88. 0
1, 680.015. 11
88. 0
1, 711. 015. 27
90.0
1, 769. 015. 51
30.0
86.01, 680.015. 16
88.0
31.0
32.0
88.01, 767.015. 54
90. 01, 856. 015. 93
90.0
92. 0
33.0
92. 01, 947. 016. 31
94. 0
34.0
94. 02, 040. 016. 70
96. 0
1, 740. 015. 42
1,829. 015. 81
1, 920. 0 16. 20
2,013. 016. 59
2, 108.0 16.98
90.0
92.0
94. 0
96.0
98.0
1,800.0 15.67
1, 891.0 16.07
1, 984. 016. 46
2,079. 0 16.86 98.0
2, 176. 017. 25 100.0
92. 0
1, 860. 0 15.92
94.0
96.0
1, 953. 0 16. 32
2, 048.0 16. 72
2, 145.0 17. 11
2, 244. 0 17. 51
35,0
96. 02, 135. 017. 08 98.0
36. 0 98. 02, 232. 017. 46 100. 0
37.0 100.02, 331.017. 84 102. 0
38.0 102. 02, 432. 018. 22 104. 0
39.0 104. 02, 535. 0|18. 60|106. 0
40.0 106. 02, 640. 018. 97 108. 0
41.0 108. 02, 747.0 19. 35110.0
42.0 110.0 2,856. 019. 72 112. 0
43.0 112. 02, 967. 0 20. 10114. 0
44.0 114.03, 080.0 20. 47116.0
45. 0 116. 03, 195. 0 20. 84 118. 0]
46.0 118. 03, 312. 021. 22 120. 0
47.0 120. 03, 431.0 21. 59|122. 0
48.0 122. 03, 552. 0 21. 96 124. 0
49.0 124.03, 675.0 22. 33 126.0
2, 275.0 17.64 102.0
2, 376.0 18. 02104.0
2, 205. 0 17. 36 100.0
2, 304. 017. 75 102. 0
2, 405. 018. 13 104. 02, 479.0 18. 41 106. 0
2, 508. 0 18. 51 106. 0 2, 584. 018. 80 108. 0
2, 613. 018. 89108. 0 2, 691. 019. 18110.0
2, 800. 0 19. 56 112. 0
2, 911. 019. 94114. 0
3, 024. 020. 32116.0
2, 345.0 17.90
2, 448. 0 18. 29
2, 553.0 18. 68
2, 660. 0 19.07
2, 769. 019. 46
2, 720. 019. 27 110. 0
2, 880.0 19.84
2, 829. 0 19. 65 112. 0
2, 993.0 20.23
2, 940. 0 20. 03|114.0
3, 108. 0 20. 61
3,053. 020. 40 116.03, 139.0 20. 70118. 03, 225. 0 20.99
3, 168.0 20. 78118. 0 3, 256. 0 21.08 120. 0 3, 344. 021.37
3, 285. 021.16120.0
3, 404. 021. 53 122. 0
3, 525. 021.90 124. 0
3, 648. 022. 28 126. 0
3, 773. 022. 65128. 0
3, 375. 0 21. 46 122. 0
3, 496. 021. 84 124.0
3, 619. 022. 21126. 0
3, 744. 0 22. 59 128. 0
3, 871.0 22. 96 130. 0
3, 465. 021. 75
3, 588. 022. 13
3, 713. 0 22.51
3,840. 0 22.89
3, 969.0 23. 27
50.0 126.0 3,800.0 22.70 128.0
4, 100.0 23. 64
3,900.0 23. 02130.0
4,000.0 23. 33132. 0
136
HYDRAULIC TABLES
T, and
Table 8.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
A
T
A
Τ
A
11.0
57.0
12.0 59.0
13.0 61.0
14.0
63.0
506.0 7.65| 62.0|
564.0 8.18 64.0
624.0 8.69 66.0
686.0 9.20 68.0
561.0 7.89 67.0
624.0 8.44 69.0
689.0 8.97 71.0
756.0 9.50 73.0
616.0 8.09 72.0
684.0 8.66 74.0
754.0 9.22| 76.0.
826.0 9.76 78.0
671.0 8.27
744.0 8.86
819.0 9.44
896.0 10.00
15.0 65.0
16.0 67.0
17.0 69.0
18.0
19.0
750.0 9.69 70.0
816.0 10. 17
884.0 10. 64
71.0 954. 011. 10
73. 01, 026. 011. 56
72.0
74.0
76.0
78.0
825.0 10.01 75.0
896.0 10. 51
969.0 11.00
1,044.0 11.48
1, 121. 011. 96
77.0
79.0
81.0
83.0
900.0 10. 29 80.0
976.0 10.81
1,054.0 11. 32
1, 134. 011.82
1, 216. 012. 32
82.0
84.0
975.0 10.55
1,056.0|11. 09
1, 139.0 11. 61
86.0
1, 224. 0 12. 13
88.0
1, 311.012. 64
20.0
21.0
22.0
75.01, 100.0 12.01
77.01, 176.0 12. 46
79. 01, 254. 012. 90
80.0
82.0
84.0
23.0
81.01, 334. 013. 33
86.0
24.0
83. 01, 416.0 13.76
88.0
1, 200.0 12. 43
1, 281.0 12.89
1, 364.0 13. 34
1, 449.0 13. 79 91.0
1, 536. 014. 24 93.0
85.0
87.0
1,300.012. 80
1,386.0 13. 28
90.0
1, 400.0 13. 14
92.0
1, 491.0 13. 63
89.0
1, 474.0 13. 75
1, 564. 014. 21
1, 656. 014. 67
94.0
1,584. 014. 11
96.0
1,679.0 14.59
98.0
1, 776. 0|15. 07
25.0
85.01, 500.014. 19
90.0
26.0
27.0
87.01, 586.0 14.61
89. 01, 674.0 15.03
92.0
94.0
28.0
29.0
91.01, 764. 015. 45
93. 01, 856. 0 15.86
96.0
98.0
1, 625. 0 14. 68 95.0
1, 716.015. 11 97.0
1, 809. 0 15. 55 99.0
1, 904. 015. 97 101.0
2,001.0 16.40 103. 0
30.0
95.01, 950.0 16. 27 100.0
31.0 97. 02, 046.0 16. 68|102.0
32.0 99.02, 144. 0 17.08 104. 0
33.0 101.02, 244. 017. 49 106. 0
34.0 103. 02, 346. 0 17. 89 108.0
35.0 105.02, 450. 0 18. 28 110.0
36.0 107.02, 556. 018. 68 112.0
37.0 109.02, 664. 0 19.08 114.0
38.0 111.02, 774. 019. 47 116.0
39.0 113.02, 886. 0 19.86 118.0
40.0 115.03, 000. 0 20. 25 120.0
41.0 117.03, 116.0 20. 64 122.0
42.0 119.03, 234.0 21.03 124.0
43.0 121.03, 354. 0 21. 41 126.0
44.0 123.03, 476. 0|21. 80|128.0
45.0 125.03, 600.0 22. 18 130.0
46.0 127.03, 726.0 22. 57 132.0
47.0 129.03, 854. 0 22. 95 134. 0
48.0 131.03, 984. 0|23. 33|136.0
49.0 133.04, 116.0 23. 71 138.0
1,750. 0 15. 12 100.0
1,846. 0 15. 57 102. 0
1, 944. 016. 02104. 0
2, 044. 0 16. 46 106.0
2, 146. 0 16. 89 108.0
2, 250.017. 33 110.0
2, 100.0 16.82 105.0
2, 201.017. 24 107.02, 356.0 17.76|112. 0|
2, 304.0 17.65 109.0 2, 464. 0 18. 18114.0
2, 409.0 18. 07111.0 2, 574. 0 18. 61 116.0
2, 516.0 18. 48113.0 2, 686. 0 19.03 118.0
2,625.0 18. 89 115.0
2, 736. 019. 29 117.0
2,849. 0 19. 70 119.0
2, 964. 0 20. 10 121.0
3,081.0 20. 50 123. 0
3, 200.0 20. 90 125. 0
3, 321.0 21. 29 127.0
3, 444.0 21. 69 129. 0
3, 569. 0 22. 08 131.0
3, 696.022. 47【133.0||
3,825. 0 22. 87 135.0
3, 956. 0 23. 26 137.0
4, 089.0 23. 64 139.0
4, 224. 024.03|141.0
4, 361.0 24. 42143. 0
2,800.0 19. 45 120.0
2, 916. 019.86 122.0
3, 034.0 20. 27 124.0
3, 154.0 20. 68 126.0
3, 276. 0 21.09 128.0
3, 400.0 21. 50 130.0
3, 526.0 21.91 132.0
3, 654.0 22. 31134.0
3, 784.0 22. 71136.0
3,916.0 23. 11 138. 0
4,050.0 23. 51 140.0
4, 186.0 23. 91 142.0
4, 324. 024. 30 144. 0
4, 464. 024. 70|146.0
4, 606. 0 25. 09 148.0
1,875.0 15.53
1,976.0 15.99
2,079.0 16.45
2, 184.0 16. 90
2, 291.017. 35
2, 400.0 17.80
2, 511.0 18. 24
2, 624.0 18. 67
2, 739.0 19. 11
2,856.0 19. 54
2, 975.0 19. 97
3, 096.0 20. 39
3, 219.0 20.81
3, 344. 0 21. 23
3, 471.0 21. 65
3,600.0 22.07
3, 731.0 22. 48
3, 864.0 22.89
3, 999.0 23. 30
4, 136.0 23. 71
4, 275.0 24. 11
4, 416. 024. 52
4, 559.0 24.92
4, 704. 025. 32
4, 851.0 25.72
50,0 135.04, 250. 0 24. 09₤140.0
5,000.0|26. 12
4, 500.0 24. 80 145.0
4,750.0 25. 48 150.0
HYDRAULIC TABLES
137
Table 8.-
8.- Area
in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T T
A
T T
A
T T
A
11.0
82.0
12.0
84.0
13.0
14. 0
781.0 8.57 92.0
864.0 9.20 94.0
86.0 949.0 9.81 96. 0
88. 01, 036. 0 10. 40 98. 0
15.0
16. 0
17.0
18.0
19.0
90. 01, 125. 010. 98|100. 0||
92. 01, 216. 011. 55102. 0
94. 01, 309. 012. 11104. 0
96. 01, 404. 012. 66 106. 0
98. 01, 501. 0 13. 20108. 0
891.0 8.81 102. 0
984.0 9.47 104. 0
1,079. 0|10. 11|106. 0
1, 176. 010. 73 108. 0
1, 275. 0|11. 34110. 0
1, 376. 0|11. 94 112. 0|
1, 479. 0 12. 53114. 0
1, 584. 0 13. 10116. 0
1, 691. 013. 67 118. 0
1,800.0|14. 22|120. 0
1, 911. 0 14. 77 122. 0
20.0 100. 01, 600. 0|13. 73|110. 0
21.0 102. 01, 701. 014. 25 112. 0
22.0 104. 01, 804. 014. 76 114. 02, 024. 015. 31|124. 0||
23.0 106. 01, 909. 0|15. 27 116. 0
24.0 108. 02, 016. 015. 76 118. 0
25.0 110. 02, 125. 016. 26 120. 0
26.0 112. 02, 236. 0 16. 74 122. 0
27.0 114. 02, 349. 017. 23124. 0
28.0 116. 02, 464. 0 17. 70126. 0
29.0 118. 02, 581. 018. 17 128. 0
30.0 120. 02, 700. 018. 64 130. 0
31.0 122. 02, 821. 019. 10 132. 0
32.0 124. 02, 944. 019. 56 134. 0
33.0 126. 03, 069. 0 20. 01136. 0
34.0 128. 03, 196. 0 20. 47 138. 0
35.0 130:03, 325. 0 20. 91|140.0
36.0 132. 03, 456. 0 21. 36|142. 0
37.0 134. 03, 589. 021. 80 144. 0
38.0 136.03, 724. 0 22. 24 146. 0
39.0 138. 03, 861. 0 22. 67 148. 0
40.0 140.04, 000. 023. 10 150. 0
41.0 142. 04, 141. 0 23. 53 152. 0
42.0 144. 04, 284. 023. 96154. 0
43.0 146.04, 429. 024. 39₤156. 0
44.0 148. 04, 576. 024. 81 158. 0
45.0 150.04, 725. 0 25. 23 160.0
46.0 152. 04, 876. 0 25. 65162. 0
47.0 154. 05, 029. 0 26. 07 164. 0
48.0 156.05, 184. 0 26. 48 166. 0
49,0 158. 05, 341. 026. 89168. 0
2, 139. 015. 84 126. 0
2, 256. 016. 36 128. 0
2,375. 016. 88 130. 0
2, 496. 017. 39132. 0
2, 619. 017. 89134. 0
2, 744. 018. 39 136. 0
2, 871. 0 18. 89138. 0
3,000. 019. 37|140. 0]
3, 131. 019. 86142. 0
3, 264. 020. 34|144. 0
3, 399. 020. 81 146. 0
3, 536.0 21. 28 148. 0
3,675. 021. 75150.0
3, 816. 0 22. 21|152. 0
3, 959. 022. 67 154. 0
4, 104. 023. 12156. 0
4, 251. 023. 58 158. 0
4, 400. 0 24. 03 160. 0
4, 551. 0|24. 47162. 0
4, 704. 024. 92164. 0
4, 859. 025. 36 166. 0||
5, 016. 025. 80 168. 0
5, 175. 026. 23 170. 0
5, 336. 0 26. 67 172. 0
5, 499. 027. 10 174. 0
5, 664. 0 27. 53 176. 0
5, 831.027. 95 178.0
1,001.0 9.01 112. 0
1, 104. 0 9.69 114. 0
1, 209. 0|10. 35|116. 0|
1, 316. 011. 00118. 0
1, 425. 011. 64120. 0
1, 536. 0|12. 26|122. 0|
1, 649. 012. 87|124. 0
1, 764. 0 13. 47 126. 0
1, 881. 014. 06 128. 0
2, 000. 014. 64|130. 0]
2, 121.015. 22132. 0
2, 244. 015. 78|134. 0
2, 369. 0 16. 33|136. 0
2, 496. 0 16. 88 138. 0
1, 111. 0 9.17
1,224. 0 9.88
1, 339. 0|10. 56
1, 456. 011. 23
1,575. 011. 89
1, 696. 0|12. 54
1, 819. 0 13. 17
1, 944. 013. 80
2, 071. 014. 41
2, 200. 0 15. 01
2, 331. 015. 60
2, 464. 0 16. 19
2, 599. 0₤16. 76
2, 736. 0 17.33
2,875.0 17.89
2, 625. 0 17. 42 140.0
2, 756. 017. 95142. 03, 016. 0 18. 44
2, 889. 018. 48 144. 0 3, 159. 018. 99
3, 024. 019. 00 146. 0 3, 304. 019. 53
3, 161. 0|19. 51|148.0 3,451. 0|20. 06
3, 300. 0|20. 02|150.0 3,600. 020. 59
3, 441. 0 20. 52|152. 0| 3,751. 0 21. 11
3, 584. 021. 02154. 03, 904. 021. 63
3,729. 021. 51 156. 0 4, 059. 0/22. 14
3, 876. 0 22. 00 158. 0 4, 216. 0 22.65
4,025. 0|22. 49|160. 0
4, 176. 022. 97162. 0
4, 329. 0|23. 44|164. 0
4, 484. 023. 92 166. 0
4, 641. 0 24. 39|168. 0
4, 800. 024. 85170. 0
4, 961. 0|25. 32|172. 0|
5, 124. 025. 78|174. 0|
5, 289. 0|26. 23|176. 0|
5, 456. 0 26.69 178. 0
5, 625. 0 27. 14 180. 0
5,796. 027. 59182. 0
5,969. 028. 03184. 0
6, 144. 028. 48 186. 0
6, 321. 028. 92188.0
4, 375. 023. 15
4, 536. 0|23. 65
4, 699. 0|24. 14
4, 864.0 24. 63
5,031. 0 25. 12
5,200.0 25. 60
5, 371. 0|26. 08
5, 544. 0|26. 55
5, 719. 0|27. 02
5,896. 027. 49
6, 075. 027.96
6, 256. 0 28. 42
6, 439. 028.88
6, 624. 0 29. 34
6,811, 029.80
50.0 160.05, 500. 0|27. 31|170.0|| 6, 000. 028. 38|180. 0 6, 500. 029. 36 190. 0 7,000. 030. 25
563189°-14-
-10
138
HYDRAULIC TABLES
Table 8.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T A
T T
A
T
A
T T
A
11.0 122.0 1, 221.0 9.31 132.0
12.0 124.0 1,344. 010. 03 134.0
13.0 126.0 1,469.0 10.74 136.0
14.0 128.0 1, 596.0 11. 43 138.0
15.0 130.0 1,725. 0 12. 11 140.0
16.0 132.0 1,856.0 12. 78 142.0
17.0 134.0 1,989.0 13. 43 144.0
18.0 136.0 2, 124. 014. 07146.0
19.0 138.0 2,261. 0 14. 71 148.0
20.0 140.0 2,400. 015. 33 150.0
21.0 142.0 2,541. 0 15.94 152.0
22.0 144.0 2, 684. 0 16. 54 154.0
23.0 146.0 2, 829. 0 17. 14 156.0
24.0 148.0 2,976.0 17.73 158.0
25.0 150.0 3, 125. 0 18. 31 160.0
26.0 152.0 3, 276. 0 18. 88 162.0
27.0 154.0 3, 429. 0 19. 44 164.0
28.0 156.0 3, 584. 0 20. 00 166.0
29.0 158.0 3, 741. 0 20. 55 168.0
2
30.0 160.0 3,900. 021. 10 170.0
31.0 162.0 4, 061.0 21. 64 172.0
32.0 164.0 4,224.0 22. 17 174. 0
33.0 166.0 4, 389. 022. 70 176. 0
34.0 168.0 4, 556. 0 23. 23 178.0
35.0 170.04, 725.0 23. 74 180.0
36.0 172.0 4,896.0 24. 26 182.0
37.0 174.0 5,069.0 24. 77 184. 0
38.0 176.05, 244. 0 25. 27 186.0
39.0 178.0 5, 421.0 25. 78 188.0
,
40.0 180.05, 600.0 26. 27 190.0
41.0182.0 5, 781.0 26. 77 192.0
42.0 184.05, 964. 0 27. 26 194. 0
43.0 186.0 6, 149.0 27.75 196.0
44.0 188.0 6, 336. 0 28. 23 198.0
45.0 190.0 6, 525. 0 28. 71 200.0
46.0 192.0 6, 716. 0 29. 19 202. 0
47.0 194.0 6,909.0 29.66 204. 0
48.0 196.0 7, 104. 030. 13206.0
49.0 198.0 7, 301. 030. 60 208.0
1,331.0 9.43 142.0
1, 464. 010. 17144. 0
1, 599.0 10.89146.0
1,736.0 11. 60 148.0
11.60|148.0
1,875.0 12.30 150.0
2,016.0 12.99 152. 0
2, 159. 013. 66154. 0
2, 304. 014. 32156.0
2, 451.0 14.97 158.0
2,600.0 15.61 160.0
2,751.0 16. 24 162.0
2, 904. 016. 86164.0
3, 059. 017. 47 166.0
3, 216.0 18. 08168.0
3, 375.0 18. 68170.0
3, 536. 019. 27 172.0
3,699.0 19.85 174.0
3,864.0 20. 42 176. 0
4, 031.0 20. 99 178. 0
4,200.0|21. 55|180.0||
4, 371.0 22. 11 182.0
4, 544.0 22.66 184.0
4, 719. 023. 21 186.0
4, 896.023. 75 188.0
1, 441.0 9. 54 152.0
1, 584. 0 10. 29 154. 0
1,729. 011.03 156. 0
1,876.0 11.75 158.0
2,025.0 12. 47 160.0
2, 176. 0 13. 17 162.0
2, 329. 0 13. 86 164.0
2, 484. 014. 53 166.0
2, 641.015. 20 168.0
2,800.0 15.86 170.0
2,961.0 16. 51 172.0
3, 124. 017. 14 174.0
3, 289.0 17. 77 176.0
3, 456. 0 18. 39 178.0
3,625.0 19. 01 180.0
3,796. 0 19. 61 182.0
3,969. 0 20. 21 184. 0
4, 144. 0 20. 80 186.0
4, 321.0 21.39 188.0
4, 500. 0 21. 97 190.0
4, 681.0 22. 54192.0
4,864.0 23. 11194.0
5,049.0 23. 67 196.0
5, 236.0 24. 22 198.0
5,075.024. 28190.05, 425. 0 24. 77 200.0
5, 256. 024. 81 192. 0 5, 616.0 25. 32 202.0
81|192.
5, 439. 025. 34194. 0 5,809. 025.86 204. 0
5, 624.0 25.86 196. 06, 004. 0 26. 39 206.0
5, 811.0 26. 38 198.0 6, 201.0 26. 92 208. 0
6,000. 0 26. 89 200.0
6, 191.0 27. 40 202. 0
6, 384. 027.90 204. 0
6, 579. 028. 40 206.0
6, 776. 028. 901208.0
6, 975. 029. 40 210.0
7, 176.0 29.89 212.0
7, 379.0 30.37 214.0
7, 584. 030. 86 216.0
7, 791.031.34218.0
6, 400.0 27. 45 210.0
6, 601. 0 27.97 212. 0
6, 804. 0 28. 49 214. 0
7, 009. 0 29. 01 216.0
7, 216.0 29. 52 218.0
7, 425. 0 30.03 220.0
7, 636.0 30.53 222.0
7, 849. 031.03 224.0
8, 064. 031. 53 226.0
8, 281. 032. 02 228.0
1, 551.0 9.63
1, 704. 0 10. 39
1,859. 011. 15
2,016.0 11.89
2, 175.0 12. 61
2, 336.0 13. 33
2, 499.014. 03
2, 664. 014. 73
2,831. 0|15. 41
3,000. 016. 08
3, 171. 016. 74
3, 344. 017. 40
3, 519.018.04
3, 696.0 18. 68
3,875.0 19.31
4,056.0 19.93
4, 239.0 20. 54
4, 424. 021. 15
4, 611.0 21.75
4,800.0 22. 34
4, 991.0 22.93
5, 184.0 23. 51
5, 379.0 24.08
5, 576.0 24. 65
5,775.0 25. 22
5,976.0 25.78
6, 179.0 26.33
6, 384. 0 26. 88
6, 591.0 27.43
6, 800.0 27.97
7, 011. 0 28. 50
7, 224. 029. 04
7, 439. 029. 56
7, 656.0 30. 09
7,875.030. 61
8,096. 031. 13
8, 319. 031.64
8, 544. 032. 15
8, 771.0 32. 66
50.0 200.0 7,500. 0 31.07 210.0
9, 000. 033. 16
8,000.0 31.82 220.0
8, 500. 032. 51 230. 0
HYDRAULIC TABLES
139
feet, T, and
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T A
T T
A
T T
A
T
T
A
T
11.0 162.01, 661.0 9.71 172.0
12.0 164. 01, 824. 0 10. 49 174. 0
13.0 166. 01, 989. 0 11. 25 176. 0
14.0 168. 02, 156. 0 12.00 178.0
1,771.0 9.78 182.0
1, 944. 0 10. 57 184. 0
2, 119.0 11. 35 186.0
2, 296.0 12. 11 188.0
1,881.0 9.84192.0
2, 064. 0 10. 64/194.0
2, 249.0 11. 43 196.0
2, 436.0 12. 20 198. 0
15.0 170.02, 325. 012. 74 180.0
16.0 172. 02, 496. 0 13. 47|182. 0
17.0 174.02, 669. 0 14. 19 184.0
18.0 176. 02, 844. 0 14. 90 186. 03, 024. 015. 05196.0 3, 204.015. 19 206.0
19.0 178.03, 021. 0 15. 59 188. 0
20.0 180.03, 200.0 16. 28 190.0
21.0182.03, 381.0 16. 96/192. 0
22.0 184.03, 564. 0 17. 62 194. 0
23.0 186.03, 749. 0 18 28 196. 0
24.0188.03, 936. 0【18. 93|198.0
25.0 190.04, 125. 019. 58 200.0
26.0 192.04, 316. 0 20. 21|202. 0
27.0194.04, 509. 0 20. 84 204.0
28.0 196.04, 704. 0 21. 46 206. 0
29.0 198.04, 901. 0 22. 07 208.0
30.0 200.05, 100.0 22. 68 210. 0
31.0 202. 05, 301. 0|23. 28|212.0
32.0 204. 05, 504. 0 23. 88 214. 0
33.0 206.05, 709. 0 24. 47 216.0
34.0 208.05, 916. 0 25. 05|218.0
35.0 210.06, 125. 0 25. 63 220.0
36.0 212.06, 336.0 26. 20 222.0
37.0 214.06, 549. 0 26. 77 224. 0
38.0 216.06, 764.0 27. 33 226. 0
39.0 218.06, 981.0 27.89 228.0
40.0 220.07, 200. 0 28. 44230. 0
41.0 222.07, 421. 0 28. 99|232. 0
42.0 224.07, 644. 0 29. 54 234. 0
43.0 226.07, 869. 030. 08 236.0
44.0 228. 08, 096. 0 30. 61 238.0
,
45.0 230.08, 325. 0₤31. 15₤240.0❘
46.0 232.08, 556. 031. 68 242. 0
47.0 234.08, 789. 0 32. 20 244. 0
48.0 236.09, 024. 0|32. 72|246. 0
49.0 238.09, 261. 0 33. 24 248.0
2, 475. 0|12.86 190.0
2, 656.013. 60192. 02, 816. 013. 72 202. 0|
2, 839.014. 33194.0
3, 211.0 15. 76 198. 0
3, 400.0 16. 46200. 0
3, 591. 017. 15202. 0
3, 784.0 17. 83 204. 0
3, 979.0 18. 50 206. 0
4, 176.0 19. 17 208. 0
1, 991. 0 9.90
2, 184. 010. 71
2, 379.0 11. 51
2, 576. 0 12. 29
2,625. 0【12, 97|200.0 2, 775. 0 13.06
2, 976. 0 13. 83
3,009.0 14.46 204.03, 179. 014. 58
3, 384. 015. 32
3, 591. 0 16.05
3,800.0 16.77
4, 011.0 17.48
4, 224. 0 18. 19
4, 439.0 18. 89
4, 656. 0 19. 57
3, 401. 0 15. 91 208. 0
3, 600.0 16. 62 210.0
3, 801.0 17.32 212. 0
4, 004. 018. 02/214. 0
4, 209. 0 18. 70 216. 0
4, 416. 0|19. 38 218.0
4, 375.0 19.82 210. 0 4, 625.0 20.05 220.0
4, 576. 020. 47 212. 0 4, 836. 020. 71 222.0
4.779. 021. 11214. 05, 049. 021. 36 224.0
4, 984. 0 21. 75 216.05, 264. 0 22. 01 226. 0
5, 191.0 22. 37 218. 0 5, 481.0 22. 65|228.0
5, 700.0 23. 28|230. 0
5, 921.0 23. 91|232.0
6, 144. 024. 53 234.0
6, 369.0 25. 14 236.0
6, 596.0 25. 75 238. 0
5, 400.0 22. 99|220. 0
5, 611.023. 61|222. 0|
5, 824. 024. 22224. 0
6,039.0 24.82 226.0
6, 256.0 25. 41 228.0
6, 475.0 26.00 230.0
6, 696.0 26. 59 232. 0
6, 919.0|27. 17|234.0
7, 144.0 27. 75 236.0
7, 371.028. 32238.0
6, 825.0 26. 35 240.0
7,056.0 26. 95 242. 0
7, 289.0 27. 54|244. 0
7, 524. 028. 13 246. 0
7, 761.0 28. 71|248. 0]
7, 600.0 28. 88 240.0 8,000. 0|29. 29|250.0
7, 831.029. 44|242.0 8, 241.0 29. 86 252.0
8,064.030.00 244.0 8, 484. 030. 43 254.0
8, 299. 030. 55246.0 8, 729. 031.00 256.0
8, 536. 031. 10 248.0 8, 976.0 31. 56 258.0
4,875.0 20. 25
5,096.0 20.92
5,319.0 21. 59
5, 544. 0 22. 25
5,771.0 22.90
6,000.0 23.54
6, 231.0 24. 18
6, 464.0 24.81
6, 699.0 25. 44
6, 936.0 26.06
7, 175.0 26. 67
7, 416.0 27. 28
7, 659.0 27.89
7, 904. 0 28.48
8, 151.029.08
8, 400.0 29. 67
8, 651.030. 25
8, 904.0 30.83
9, 159. 031.41
9,416.0 31.98
8, 775. 0|31. 65|250.0|| 9, 225. 0|32. 11|260.0 9, 675.0 32, 55
9,016. 032. 19|252.0 9, 476. 032. 66 262.0 9, 936.0|33. 11
9, 259. 032. 72 254.0 9, 729. 033. 21 264. 0 10, 199.0 33.67
9, 504. 033. 26|256.0 9, 984. 0 33. 76 266. 010, 464. 0 34. 22
9, 751. 033. 79 258. 0 10, 241. 0 34. 30 268. 0 10, 731. 034. 77
50.0 240.09, 500. 0 33. 76 250.0 10,000.0 34. 31 260.0 10, 500.034.83 83/270
270.0/11, 000. 0 35. 32
140
HYDRAULIC TABLES
feet,
Table 8.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1 to 1—Continued
Bottom width
180 feet
Bottom width
190 feet
T, and
T,

Bottom width
200 feet
Depth
T
A
T
T
A
T
T
A
T
11.0
202. 0
2, 101. 0
9.95
212.0
2, 211. 0
2,211.0
10.00
222.0
2, 321.0
10.04
12.0
204. 0
2,304. 0
10.77
214. 0
2, 424. O
10.82
224.0
2,544. 0
10.87
13.0
206.0
2,509.0
11.57
216.0
2,639. O
11. 64
226.0
2,769. 0
11.69
14.0
208.0
2,716.0
12.37
218.0
2,856. 0
12.44
228.0
2,996. 0
12.50
15.0
210.0
2,925. O
13. 15
220.0
3,075.0
13. 23
230.0
3, 225. 0
13.30
16.0
212.0
3, 136.0
13. 92
222.0
3, 296. O
0
14. 01
232.0
3,456. 0
14.09
17.0
214.0
3, 349. 0
14. 68
224.0
3, 519.0
14. 78
234.0
3,689. 0
14.87
18.0
216.0
3,564. 0
15. 43
226.0
3. 744. 0
15. 54
236.0
3,924. 0
15. 64
19.0
218. 0
3,781. 0
16. 18
228. 0
3,971. 0
16.29
238.0
4,161.0
16.40
20.0
220.0
4,000.0
16.91
230.0
4, 200.0
17.03
240.0
4,400. 0
17. 15
21.0
222.0 4,221.0
17.63
232.0
4, 431. 0
17.77
242.0
4,641. 0
17.89
22.0
224. 0 4, 444. 0
18. 35
234.0
4, 664. 0
18.49
244.0
4.884. 0
18.63
23.0
226.04, 669. 0
19.05
236.0
4,899. O
19. 21
246. 0
5, 129. 0.
19.35
24.0
228.0 4,896.0
19.75
238.0
5, 136.0
19.92
248.0
5, 376. 0
20.07
25.0
230.0
5,125. 0
20.44
240.0
5, 375.0
20.62
250.0
5,625. 0
20.78
26.0
232.0
5, 356. 0
21.12
242.0
5, 616. 0
21.31
252.0
5,876. 0
21.48
27.0
234.0
5, 589. 0
21.80
244.0
5,859. 0
22.00
254.0
6, 129. 0
22. 18
28.0
236. 0
5, 824. 0
22.47
246. 0
6, 104. 0
22.67
256.0
6, 384. 0
22.87
29.0
238.0
6, 061. 0|
23.13
248. 0
6, 351. 0
23.35
258.0
6, 641. 0
23.55
30.0
240.0
6, 300. 0
23.79
250.0
6,600. 0
24. 01
260.0
6,900. 0
24. 22
31.0
242.0
6, 541. 0
24. 44
252.0
6,851.0
24. 67
262.0
7, 161. 0
24.89
82.0
244.0
6, 784. 0
25.08
254. 0
7, 104. 0
7,104.0
25. 33
264.0
7,424. 0
25.56
33.0
246.0
7, 029. 0
25.72
256.0
7, 359.0
25.97
266. 0
7,689.0
26. 21
34.0
248.0
7, 276. 0|
26.35
258.0
7, 616. 0
26. 61
268. 0
7, 956. 0
26.86
35.0
250.0
7, 525. 0
26.97
260.0
875.0
27.25
270.0
8, 225. 0
27.51
36.0
252.0 7, 776.0
27.59
262.0
8, 136.0
27.88
272.0
8,496. 0
28. 15
37.0
254.0
8, 029.0]
28. 21
264. 0
8, 399.0
28.50
274.0 8, 769. O
28.78
38.0
256.0 8, 284. 0
28.82
266. 0
8, 664.0
29. 12
276. 09, 044. 0
29.41
39.0
258.0
8, 541. 0
29.42
268. 0
8,931.0
29. 74
278.0
9, 321.0
30.04
40.0
260.0
8,800.0|| 30.02
270.0
9,200.0
9,200.0
30. 35
280.0
9,600.0
30.66
41.0
262.0
9, 061. 0
30.62
272.0
9, 471. 0
9, 471.0
30. 95
282.0
9,881. 0
31.27
42.0
264. 0
9, 324. 0
31. 21
274.0
9, 744.0
31. 56
284. 0
10, 164. 0
31.88
43.0
266.0
9, 589.0
31.79
276. 0
10, 019.0
32. 15
286. 0
10, 449. 0
32.49
44.0
268.0
9,856.0
32.37
278. 0
10, 296.0
32.74
288.0 10, 736.0
33.09
45.0
270.0 10, 125. 0
32.95
280.0 10, 575.0
33.33
290.0 11,025. 0
33.69
46.0
272.0 10, 396. 0
33.52
282.0 10,856.0
33.91
292.0 11, 316. 0
34.28
47.0
274.0 10, 669. 0
34.09
284.0 11, 139. 0.
34.49
294.0 11,609.0
34.87
48.0
276. 0 10, 944. 0
34.66
286.0 11, 424.0
35.07
296.0 11,904. 0
35.45
49.0
278.0 11, 221. 0
35. 22
288. 0 11, 711.0
35. 64
298.0 12, 201. 0
36.03
50.0
300.0 12, 500.0 36.61
280.0 11, 500. 0 35.78
290.0 12,000.0 36. 21
HYDRAULIC TABLES
141
Table 9.
9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
A
T
T
A
T
ཌ་
T
A
0.2
2.6
0.46 0.17
3.61
0.66 0.18
4. 6
0.86 0.18
5. 6
1.06 0.19
0.4
3. 2
1.04
.30
4. 2
1.44 .32
5.2
1.84 .34
6. 2
2.24
.35
0.6
3.8
1.74
42
4. 8
2.34 .45
5.8
•
2.94.48
6.8
3. 54
.49
0.8 4. 4
2. 56
.52 5.4
3.36 .57
6.4
4. 16.60 7.4
4.96
.63
11111
1.0
1.2
1.4
1.6
1.8
1246 ∞
5. 0
3.50 .62 6.0
4.50 .68
7.0
•
5.6
6.2
4.56 .72 6.6
5.76 .79
7.6
5.74 .81 7.2
7.14.89
8.2
5.50 72 8.0
6.96 .84 8.6
8.54.94
6.50
.76
8.16 .87
9.2
9.94.99
6.8 7.04 .91 7.8
8.64.99
8.81
10.24 1.05 9.8
11.84 1. 10
7.4
8.46 1.001 8.4
10.26 1.08
9.4
12.06 1.15 10.4
13.86 1.21
2.0 8.0
10.00 1.09 9.0
2.2 8.6
2.4 9.2
2.6
9.8
11. 66 1.17
13.44 1.26 10. 2
15.34 1.35 10.8]
9.6
12.00 1.18 10. 0
13.86 1.27 10.6
15.84 1.36] 11. 2
17.94 1.45 11.8
2.8
10.4
17.36 1.44 11. 4
20.16 1.54 12.4
14.00 1.25 11.0
16.06 1.35 11. 6
18. 24 1.44 12. 2
20.54 1.54 12.8
22.96 1.63 13.4
16.00 1.31
18. 26 1.41
20.64 1.51
23.14 1.61
25.76 1.71
3.0 11.0
19.50 1.52] 12.0
22.50 1.63 13.0
25.50 1.72 14.0
28.50 1.80
3.2
11.6
3.4
12. 2
3.6
12.8
3.8
13. 4
21.76 1.61 12.6
24. 14 1.69 13. 2
26.64 1.78 13.8.
29.26 1.86 14.4
24.96 1.72 13. 6
28.16 1.81 14. 6
31.36 1.90
27.54 1.80 14.2
30. 24 1.89 14.8
33.06 1.98 15.4|
30.94 1.90] 15. 2
34.34 1.99
33.84 1.99 15.8
36.86 2.08 16.4
37.44 2.08
40.66 2.17
4.0
14. 0
32.00 1.95] 15.0
36.00 2.07 16.0
40.00 2.17 17.0
44.00 2.27
4.2
14. 6
34.86 2.03 15.6
4.4
15. 2
37.84 2.12 16. 2
4.6
15.8
4.8
16. 4
40.94 2.20 16.8
44. 16 2. 29 17.4
5.0 17.0
5.2 17.6
5.4 18.2
47.50 2.37 18.0
50.96 2.46 18. 6
54.54 2.54| 19.2
5.6 18.8
58. 24 2.62 19.8
5.8 19.4
62.06 2.71 20. 4
39.06 2.15 16. 6
42.24 2.24 17. 2
45.54 2.33 17.8
48.96 2.41 18.4
52.50 2.50 19. 0
56.16 2.58 19.6
59.94 2.67 20.2
63.84 2.75 20.8
67.86 2.84 21. 4
43.26 2.26 17.6
47.46 2.36
46.64 2.35 18. 2
51.04 2.45
50. 14 2.44 18. 8
54.74 2.54
53.76 2.52 19.4
58.56 2.63
57.50 2.61| 20.0|
61.36 2.70 20.6
65, 34 2.78 21.2
69.44 2.87 21.8
73.66 2.96 22.4
62.50 2.71
66.56 2.80
70.74 2.89
75.04 2.98
79.46 3.07
6.0
6.2 20. 6
20.0
6.4 21.2
6.6
21.8
6.8 22.4
66.00 2.79 21. 0
70.06 2.88 21.6
74. 24 2.96 22. 2
78.54 3.04 22.8
82.96 3.13| 23.4
72.00 2.92 22.0
76. 26 3.01 22. 6
78.00 3.04] 23.0
84.00 3.15
82.46 3.13| 23.6]
88.66 3.24
80.64 3.09 23. 2
85.14 3.18 23.8
89.76 3.26| 24.4
87.04 3.21| 24. 2
93.44 3.33
91.74 3.30| 24.8]
98.34 3.41
96.56 3.39 25.4
103.36 3.50
7.0 23.0
87.50 3.21| 24. 0
7.5 24.5
8.0 26.0
8.5 27.5
99.37 3.42 25. 5
112,00 3.63 27. 0
125.37 3.84 28.5
9.0
29.0
139.50 4.05 30. 0
94.50 3.35 25.0
106.87 3.56 26.5
120.00 3.77 28.0
133.87 3.98 29.5
148.50 4. 19 31. 0
101.50 3.47 26. 0
114.37 3.68 27.5
128.00 3.90 29.0
108.50 3.59
121.87 3.80
136.00 4.02
142. 37 4. 11| 30, 5
150.87 4.23
157.50 4.32 32.0
166.50 4.45
9.5 30.5
10.0 32.0 170.00 4.47 33. 0
154.37 4. 26 31.5
163.87 4.40 32.5
180.00 4.61 34. 0
173.37 4.53 33.5
190.00 4.74 35.0
182.87 4.66
200.00 4.87
10.5 33.5 186.37 4.68 34. 5
217.87 5.08
196.87 4.82 35.5
207.37| 4.95| 36.5
142
HYDRAULIC TABLES
Table 9.-Area in square feet, A,
feet, A, top width
top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
Τ
A
T
A
T
A
0.2
6.6
1.26 0.19
7.6
0.4 7.2
2.64 .35
8.2
0.6 7.8
4. 14.51
8.8
0.8 8.4
5.76 .65 9.4
1.46 0.19 8.6
3.04.36 9.2
4.74 .52 9.8
6.56.66 10.4
1.66 0.19 9.6
3.44.36 10.2]
5.34 .53 10.8
7.36 68 11.4
1.86 0.19
3.84 .37
5.94 .53
8.16 .69
1.0
9.0
7.50 .78 10.0
1.2
9.6
1.4
10. 2
1.6
10.8
9.36 .91 10.6
11.34 1.03 11.2
13.44 1. 14 11.8
1.8 11.4
15. 66 1.25 12.4
8.50 .80 11.0
10.56 .93| 11.6|
12. 74 1.06 12. 2
15.04 1.18 12.8
17.46 1.29 13.4
2.0
12.0
2.2
12.6
18.00 1.36 13.0
20.46 1.47) 13.6]
2.4
13.2
2.6 13.8
2.8
14.4
23.04 1.57 14.2
25.74 1.67 14.8
28.56 1.77 15.4|
20.00 1.41 14. 0
22.66 1.52 14.6
25.44 1.63 15.2
28.34 1.73 15.8
31.36 1.83 16.4
9.50 .82 12. 0
11.76 .95 12.6
14. 14 1.08 13.2
16.64 1.21 13.8
19.26 1.33 14.4|
22.00 1.45| 15.0
24.86 1.56] 15.6
27.84 1.67 16.2
30.94 1.78 16.8
34.16 1.89 17.4
1.24
15.54 1.11
18. 24
21.06 1.36
24.00 1.48
27.06 1.60
30.24 1.71
33.54 1.83
10.50 .83
12.96 .97
36.96 1.94
3.0
15. 0
31.50 1.87 16.0
34.50 1.94 17.0
37.50 1.991 18.0
40.50 2.04
3.2
15.6
3.4 16.2
3.6 16.8
3.8 17.4
34.56 1.97 16.6
37.74 2.07 17.2
41.04 2.16 17.8
44.46 2.26 18.4
37.76 2.04 17.6
41. 14 2. 14 18. 2
44.64 2.23] 18.8|
48.26 2.33 19. 4
40.96 2.10) 18.6
44.16 2. 15
44.54 2.20 19.2
47.94 2.26
48.24 2.30 19.8
51.84 2.36
52.06 2.40] 20.4
55.86 2.46
4.0
18.0
4.2
18. 6
48.00 2.35 19.0
51. 66 2.44 19.6
52.00 2.43 20.0
55.86 2.521 20. 6
56.00 2.50 21.0
4.4
19.2
4.6 19.8
55.44 2.54| 20.2
59.34 2.63 20.8
59.84 2.62 21. 2
4.8
20.4
63.36 2.72 21. 4
63.94 2.71 21.8
68.16 2.80 22.4
60.06 2.60 21.6
64.242.69 22.2
68.54 2.79 22.8
72.96 2.88 23.4
60.00 2.56
64.26 2.66
68.64 2.76
73. 14 2.86
77.76 2.96
5.0
21.0
5.2 21.6
5.4
22.2
5.6
22.8
5.8 23.4
67.50 2.81 22.0
71.76 2.90 22.6
76. 14 2.99 23. 2
80.64 3.08 23.8
85. 26 3. 17 24.4
72.50 2.90 23.0
76.96 2.99 23.6
81.54 3.08 24.2
86.24 3.17 24.8
91.06 3.26| 25.4
77.50 2.98 24.0
82. 16 3.07 24.6
86.94 3.16 25.2
91.84 3.26 25.8
96.86 3.35 26.4
82.50 3.05
87.36 3.15
92.34 3.24
97.44 3.34
102.66 3.43
6.0
24.0
6.2
24. 6
6.4 25.2
6.6 25.8
6.8
26.4
7.0 27.0
7.5 28.5
8.0 30.0
8.5
31.5
9.0
33.0
115. 50 3.70 28.0
129.37 3.92 29.5
144.00 4. 13 31.0
159.37 4.35 32.5
175.50] 4.56| 34. 0|
90.00 3.26 25.0
94.86 3.35| 25.6|
99.84 3.43|| 26.2|
104.94 3.52 26.8
110. 16 3.61 27.4
96.00 3.35 26,0
101.06 3.44 26. 6
106. 24 3. 53 27.2
111. 54 3.62 27.8
116.96 3.71 28.4
112.64 3.62 28. 2
118. 14 3.72 28.8
123. 76 3.81 29.4
129.50 3.90 30.0
144. 37 4. 12 31. 5
160.00 4.341 33.0
176. 37 4. 561 34.5
193.50 4.78 36.0
102.00 3.44 27.0
108.00 3.53
107.26 3.53 27.6
113.46 3.62
119.04 3.71
124.74 3.80
130.56 3.90
122.50 3.80 29.0
136.87 4.02 30.5
152.00 4.24 32.0
136.50 3.99
151.87 4.21
167.87 4.46 33. 5
184.50 4.68 35.0
168.00 4.44
184.87 4.66
202.50 4.89
9.5
34.5
192.37 4.78 35.5
10.0 36.0
210.00 4.99 37.0
201.87 4.89 36.5
220.00 5.11 38.0
211.37 5.00 37.5
230.00 5.22 39.0
220.87 5.11
240.00 5.33
10. B
259.87 5.55
37.5
249.37 5.44 40.5
228.37 5.21 38.5
238.87 5.33 39.5
HYDRAULIC TABLES
143
feet,
Table 9.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued
T, and
T,

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T T
A
T
A
T T
A
0.2
10.6
0.4 11.2
2.06 0.19 12.6
4.24 .37 13.2
0.6
11.8
6. 54
.54 13.8
0.8
12.4
8.96
70 14.4
10.56
2.46 0.19 14.6
5.04.37 15.2
7.74.55 15.8
.71 16.4
2.86 0.19 16.6
5.84 .38 17.2
8.94
12.16
3.26 0.19
6.64 .38
55 17.8
.72 18.4
10.14 .56
13.76 .73
1.0 13.0
11.50
.85 15.0
1.2 13.6
14. 16 .99 15.6
1.4 14.2
1.6 14.8
1.8
15.4
16.94 1.13 16.2
19.84 1.26 16.8
22.86 1.39] 17.4
13.50 .87 17.0
16.56 1.01 17.6
19.74 1.16 18. 2
23.04 1.30 18.8
26.46 1.43 19.4
•
15.50 88 19.0
18.96 1.03 19.6
22.54 1.18 20.2
26.24 1.33| 20.8
30.06 1.47 21.4
17.50 .89
21.36 1.05
25.34 1.20
29.44 1.35
33.66 1.50
2.0
16.0
26.00 1.51 18.0
30.00 1.56 20.0
2.2 16.6
29.26 1.63 18.6
33.66 1.69 20.6)
34.00 1.60 22.0
38.06 1.74 22.6
38.00 1.64
42.46 1.77
2.4 17.2
32.64 1.75 19.2
37.44 1.81 21.2
42.24 1.86| 23.2
47.04 1.91
2.6 17.8
36.14 1.87 19.8
41.34 1.93 21.8
2.8
18.4
39.76 1.98 20.4
45.36 2.05| 22.4|
46.54 1.99 23.8
50.96 2.11 24. 4
51.74 2.04
56.56 2.17
3.0
19.0
43.50 2.09 21.0
3.2
19. 6
47.36 2.20 21.6
49.50 2.17| 23.01
53.76 2.28 23.6
55.50 2.24| 25.0|
60.16 2.36 25.6
61.50 2.29
66.56 2.42
3.4
20.2
51.34 2.31 22. 2
58.14 2.40 24.2
64.94 2.47 26. 2
71.74 2.54
3.6
20.8
55.44 2.41 22.8
3.8 21.4
59.66 2.52 23.4
62.64 2.51] 24.8
67.26 2.62 25.4
69.84 2.59 26.8
77.04 2.66
74.86 2.70 27.4
82.46 2.78
4.0 22.0
64.00 2.62 24.0
72.00 2.72 26.0
4.2 22.6
4.4 23.2
4.6 23.8
4.8
24. 4
68.46 2.72 24.6
73.04 2.82 25.2
77.74 2.92) 25.8
82.56 3.02 26.4
76.86 2.83] 26.6|
81.84 2.94] 27.2
86.94 3.04| 27.8)
92.16 3.14 28.4
80.00 2.81 28.0
85.26 2.93 28.6
90.64 3.04 29.2
96.14 3.14 29.8
101.76 3.25 30.4
88.00 2.89
93.66 3.01
99.44 3.12
105.34 3.23
111.36 3.34
5.0 25.0
5.2
25.6
5.4 26.2
5.6 26.8
5.8 27.4
87.50 3.12 27.0
92.56 3.22 27.6
97.74 3.32 28.2
103.04 3.41| 28.8
108.46 3.51 29. 4
97.50 3.25 29.0
102.96 3.35 29.6
108.54 3.45 30.2
114. 24 3.55 30.8
120.06 3.65 31.4
107.50 3.36 31.0
113.36 3.46 31.6
119.34 3.57 32.2
125.44 3.67 32.8
131.66 3.77 33.4
117.50 3.45
123.76 3.56
130.14 3.67
136.64 3.78
143.26] 3.88
6.0 28.0
6.2 28.6
6.4 29.2
6.6 29.8
6.8
30.4
125.44 3.79 31.2
131.34 3.89 31.8
137.36 3.98 32.4
114.00 3.60 30.0
119.66 3.70 30. 6
126.00 3.75 32.0
132.06 3.841 32. 6
138. 24 3.94 33.2
144.54 4.04 33.8
150.96 4.13 34.4
138.00] 3.87 34. 0
144.46 3.97 34.6
150.00 3.99
156.86 4.09
151.04 4.07 35.2
157.74 4.17] 35.8]
164.56 4.27 36.4
163.84 4.19
170.94 4.30
178.16 4.40
7.0 31.0
7.5 32.5
8.0 34.0
8.5 35.5
9.0 37.0
143.50 4.07 33.0
159.37 4.30] 34.5
176.00 4.53 36.0
193.37 4.76 37.5)
211.50 4.98 39.0
157.50 4.23 35.0
174.37 4.47| 36.5|
192.00 4.70 38.0
210.37 4.93 39.5
229.50 5.16 41.0
229.50 5.16 41.0
171.50 4.37 37.0
189.37 4.61 38.5
208.00 4.85 40.0
227.37 5.09 41.5
247.50 5.33 43. 0
185.50 4.50
204.37 4.75
224.00 5.00
244.37 5.24
265.50 5.48
9.5 38.5 230.37 5.21 40.5
10.0 40.0 250.00 5.43 42.0
249.37 5.39 42.5
270.00 5.62|| 44.0
268.37 5.56 44.5
290.00 5.79 46.0
287.37 5.72
310.00 5.96
10.5 41.5 270.37 5.65 43.5
333.37 6.19
291.37 5.84 45.5
312.37 6.02 47.5
144
HYDRAULIC TABLES
!
Table 9.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued
and

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
ཝཱ
T
A
r
T
A
-
T
A
→
0.2
18.6
0.4 19.2
0.8
0.6 19.8
20.4
3.66 0.20 20.6
7.44.38 21.2)
11.34 .56 21.8
15. 36 .74 22.4
16.96
4.06 0.20 22.6
8.24 .38 23.2
12.54.57 23.8
.74 24.4
13.74
18.56 .75 26.4
4.46 0.20 24.6
9.04.39 25. 2
.57 25.8
4.86 0.20
9.84 .39
14.94
.57
20.16 .75
1.0 21.0
1.2 21.6
19.50
.90] 23.0
1.4 22.2
1.6 22.8
1.8
23.4
23.76 1.06 23.6
28.14 1.22] 24. 2|
32.64 1.37 24.8
37.26 1.52 25.4
21.50 .91| 25.0
26.16 1.08 25.6
30.94 1.24 26.2
35.84 1.39 26.8
40.86 1.54 27.4
23.50
.92| 27.0
25.50 .92
28.56 1.08] 27.6]
33.74 1.25 28.2
39.04 1.41| 28,8|
44.46 1.56] 29.4
30.96 1.09
36.54 1.26
42.24 i. 42
48.06 1.58
2.0
24.01
2.2
24. 6
2.4 25.2
2.6 25.8
2.8 26.4
42.00 1.67 26.0
46.86 1.81 26.6
51.84 1.94 27.2
56.94 2.08 27.8
62.16 2.21 28.4
46.00 1.69 28.0
51.26 1.84 28.6
56.64 1.98 29. 2
62. 14 2.12 29.8
67.76 2.25 30.4
50.00 1.71 30.0
55.66 1.86] 30.6|
61.44 2.00] 31.2|
67.34 2.15 31.8
73.36 2.29 32.4
54.00 1.73
60.06 1,88
66.24❘ 2.03
72.54 2.17
78.96 2.32
3.0 27.0
67.50 2.34 29.0
73.50 2.39 31.0
3.2 27.6
72.96 2.47 29.6
79.36 2.52 31.6
79.50 2.42 33.0
85.76 2.56 33, 6
85.50 2.46
92.16 2.59
3.4 28.2
78.54 2.60 30.2
3.6 28.8
84.24 2.721 30.8
3.8 29.4
90.06 2.84 31.4
85.34 2.65 32,2
91.44 2.77 32.8
97.66 2.90) 33.4
92.14 2.69| 34.2
98.94 2.73
98.64 2.82] 34.8]
105.26 2.95 35.4
105.84 2.86
112.86 2.99
4.0 30.0
96.00 2.96 32.0)
4.2 30.6
4.4 31.2
102.06 3.08| 32.6]
31.2
108.24 3.20 33. 2
4.6
4.8 32.4
31.8
114.543.31| 33.8
120.96 3.43 34.4
104.00 3.02 34.0
110.46 3.14 34.6
117.04 3.26] 35.2]
123.74 3.38 35.8
130.56 3.50 36. 4
112.00 3.08 36.0
118.86 3.20 36.6
125.84 3.32 37.2
132.94 3.45 37.8
140. 16 3.57 38.4
120.00 3.12
127.26 3.25
134.64 3.38
142.14 3.50
149.76 3.63
5.0 33.0
5.2 33.6
5.4 34.2
5.6 34.8
5.8 35.4
6.0 36.0
6.2 36.6
6.4 37.2
6.6 37.8
6.8 38.4
127.50 3.54 35.0
134. 16 3.65 35.6
140.94 3.76 36.2
147.84 3.87 36.8
154.86 3.98 37.4
137.50 3.62 37.0
144.56 3.73) 37.6]
151.74 3.84| 38.2
159.04 3.96 38.8
166.46 4.07 39.4
147.50 3.68 39.0
154.96 3.80] 39.6|
162.54 3.92 40. 2
170.24 4.03 40.8
178.06| 4.15] 41. 4|
157.50 3.75
165.36 3.87
173.34 3.99
181.44 4. 11
189.66 4.22
162.00 4.09 38.0
169.26 4.19] 38.6
176.64 4.30 39.2
184. 14 4. 41
191.76 4. 51
39.8
40. 4
7.0 39.0
7.5
40.5
199.50 4.61 41.0
219.37 4.87 42, 5
8.0 42.0
240.00 5.12 44.0
213.50 4.72 43.0
234.37 4.98 44.5
256.00 5.24 46.0
174.00 4.18 40.0
181.66 4.29 40.6
189.44 4.40 41.2
197.34 4.51 41.8
205.36 4.61 42.4
186.00 4.261 42.0.
194.06 4.38] 42.6
202.24】 4.49 43.2
210.54 4.60 43.8
218.96| 4.71, 44.4
198.00 4.34
206.46 4.45
215.04 4.57
223.74 4.68
232.56 4.79
241.50 4.90
264.37 5.18
227.50 4.82 45.0
249.37 5.08 46.5
272.00 5.35|| 48.0|
288.00 5.45
8.5 43.5
9.0 45.0
261.37 5.37 45.5
283.50 5.62 47.0
278.37 5.50 47.5
301.50 5.75 49.0
295.37| 5.61| 49.5
319.50 5.87 51.0
312.37 5.72
337.50 5.98
9.5 46.5
10.0 48.0
306.37 5.86 48.5
330.00 6.10 50.0
325.37 6.00] 50.5
350.00 6.24 52.0
344.37 6.12 52.5|
370.00 6.37 54.0
363.37 6.24
390.00 6.49
10.5 49.5 354.37 6.34 51. 5
417.37 6.75
375.37 6.49 53.5
396.37 6.62 55. 5
HYDRAULIC TABLES
145
Table 9.—Area
9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
Τ
А
T
T
A
T T
A
།
0.2
26. 6
0.4
27.2
5.26 0.20 28.6
10.64 .39 29.2
0.6
27.8
0.8
28.4
16. 14 57 29.8
21.76 .75 30.4
5.66 0.20 30.6
11.44 .39] 31. 2
17.34 .57 31.8
23.36.76 32.4
6.06 0.20 32.6
6.46 0.20
12. 24
.39 33. 2
13.04 .39
18. 54
.58 33.8
19.74 .58
24.96
.76 34.4
26.56 .76
1.0 29.0
27.50 .93 31.0
1.2
29.6
33.36 1.10 31.6]
1.4
30.2
1.6 30.8
1.8
31.4
39.34 1.27 32.2
45.44 1.43 32.8
51.66 1.59 33.4
29.50 .93| 33.0
35.76 1.11| 33.6
42.14 1.28 34. 2
48.64 1.44, 34.8
55.26 1.60 35.4
31.50
94 35.0
33.50 .94
38. 16 1.11| 35.6
40.56 1.12
44.94 1.28] 36. 2
47.74 1.29
51.84 1.45) 36.8
58.86 1.61 37.4
55.04 1.46
62.46 1.62
2.0
32.0
58.00 1.75 34.0
62.00 1.76 36.0
2.2
32. 6
64.46 1.90 34.6
2.4
33. 2
2.6
33.8
2.8
34. 4
71.04 2.05 35. 2
77.74 2.20 35.8
84.56 2.34| 36. 4|
68.86 1.92 36. 6
75.84 2.07 37.2
82.94 2.22] 37.8|
90.16 2.37 38.4
3.0
35.0
3.2 35.6
3.4
36.2
91.50 2.49 37.0
98.56 2.63 37.6
105.74 2.76] 38. 2
3.6
36.8
113.04 2.90 38.8
3.8
37.4
120.46 3.03] 39.4
97.50 2.51 39.0
104.96 2.65 39.6
112.54 2.80 40.2
120.24 2.93| 40.8
128.06 3.07 41. 4
4.0
38.0
4.2 38.6
128.00 3.17| 40. 0
135. 66 3.30 40.6
4.4
39.2
143.44 3.43 41. 2
4.6 39.8
151.34 3.55| 41,8|
4.8
40.4
159.36 3.68 42. 4
5.0
41.0
5.2 41.6
5.4 42.2
5.6 42.8
5.8
43. 4
167.50 3.80 43.0
175. 76 3.93 43. 6
184. 14 4. 05| 44. 2)
192. 64 4.17 44. 8
201.26 4. 29 45.4
177.50 3.86 45.0
186. 16 3.98 45.6
194. 94 4. 11 46.2
203.84 4. 23| 46.8
212.86 4.35 47.4
6.0
44. 0
6.2
44.6
6.4
45.2
210.00 4.41] 46. 0
218.86 4.53 46.6
227.84 4.64 47. 2
222.00 4.47 48.0
231.26 4.59 48.6
6.6
45.8
6.8
46.4
236.94 4.76 47.8
246. 16| 4.87 48. 4|
240.64 4.71 49. 2
250.14 4.83 49.8
259.76 4.95 50.4
7.0 47.0
7.5 48.5
8.0 50.0
8.5 51.5
9.0
53.0
255.50 4.99 49.0
279.37 5.27 50.5
304.00 5.54 52.0
329.37 5.81 53. 5|
355.50 6.08 55.0
136.00 3.21 42.0
144. 06 3.34 42.6
152. 24 3.47 43. 2
160.54 3.60 43.8
168.96 3.73| 44. 4|
269.50 5.06| 51.0|
294.37 5. 35 52.5
320.00 5.63 54.0
346.37 5.91 55.5
373.50 6.18 57.0
66.00 1.77 38. 0
73. 26 1.93| 38.6|
80.64 2.09 39. 2
88. 14 2. 24| 39.8|
95.76 2.39 40.4
103.50 2.54 41.0
111.36 2.68 41.6
119.34 2.82 42. 2
127.44 2.97 42.8
135. 66 3.10 43. 4
144.00 3.24 44.0
152.46 3.38 44. 6
161.04 3.51 45. 2
169. 74 3.64 45.8
178. 56 3.77 46. 4)
187.50 3.90 47.0
196. 56 4.03 47.6
205. 74 4. 16 48.2
215.04 4.28 48.8
224.46 4. 41| 49. 4|
234.00 4.53 50.0
243.66 4. 651 50.6
253. 44 4.78 51.2
263. 34 4.90 51.8
273.36 5. 01| 52.4
283.50 5.13 53.0
309. 37 5.42 54.5
336.00 5.71 56.0
363.37 5.99 57. 5
391.50 6.27 59.0
93.34 2.26
101.36 2.41
109. 50| 2.56
117.76 2.70
126. 14 2.85
134.64 2.99
143.26 3.13
152.00 3.27
160.86 3.41
169.84 3.55
178.94 3.68
188. 16 3.82
197.50 3.95
206.96 4.08
216.54 4. 21
246.00 4.59
256.06 4.71
266. 24 4.83
276.54 4.96
286.96 5.08
70.00 1.79
77.66 1.94
85.44 2.10
226. 24 4.33
236.06 4.46
297.50 5. 20
324.37 5.49
352.00 5.79
380.37 6.07
409.50 6.35
9.5
54. 5
382.37 6.35 56.5
10.0
56.0
410.00 6.61 58.0
401.37 6.45 58.5
430.00 6.71 60.0
420.37 6.54 60.5
450.00 6.81 62.0
439.37 6.63
470.00 6.91
10.5
501.37 7.18
57.5
480.37 7.08 63.5
438.37 6.86 59.5
459.37 6.98 61. 5
146
HYDRAULIC TABLES
Table 9.
9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
A
T
A
T T
A
T
0.2 35.6
0.4 36.2
14. 24
0.6 36.8
21.54
58 41.8
0.8 37.4
28.96
.76 42.4
7.06 0.20 40.6
.39 41.2
8.06 0.20 45.6
16. 24.39 46.2
24.54.58 46.8
32.96 .77) 47.4
9.06 0.20 50.6
18. 24.39 51.2
27.54 .58 51.8
36.96 77 52.4
10.06 0.20
20.24 .39
30.54.59
40.96 .77
1.0 38.0
1.2 38.6
1.4 39.2
36. 50
.95 43.0
44. 16 1.12 43.6
51.94 1.30 44.2
1.6 39.8
59.84 1.47 44. 8
1.8 40.4
67.86 1.64| 45.4|
2.0
41.0
2.2
41.6
2. 4
42.2
2.6
42.8
2.8
43.4
76.00 1.80 46.0
84.26 1.96 46.6
92.64 2.12 47.2|
101. 14 2. 28 47.8
109.76 2.43 48.4
41.50 .95) 48.0
50.16 1. 13 48.6
58.94 1.31]】 49.2
67.84 1.48 49.8
76.86 1.65 50.4
86.00 1.82 51.0
95.26 1.99 51.6
104.64 2.15 52.2
114. 14 2.31 52.8
123.76 2. 47 53. 4
3.0
44.0
3.2
44. 6
3.4
45. 2
3.6
45.8
3.8
46. 4
4.0 47.0
4.2 47.6
4.4
48.2
4.6 48.8
4.8 49.4
164.00 3.32 52.0
173. 46 3.46 52.6
183.04 3.60 53.2
192.74 3.74 53.8
202.56 3.87 54.4
5.0
50.0
5.2
50. 6
5. 4
51.2
5.6
51.8
5.8 52.4
6.0
53.0
6.2 53.6
6.4
54. 2
6.6
54.8
64.8
6.8
55.4
7.0
56.0
7.5 57.5
8.0 59.0
8.5
60. 5
9.0
62.0
118.50 2.59 49.0
127.36 2.74 49.6
136. 34 2.88] 50.2
145. 44 3.03| 50.8
154.66 3.18 51.4
212.50 4.01 55.0
222. 56 4. 14 55.6
232.74 4.27 56. 2
243.04 4.40 56.8
253.46 4.53| 57.4
264.00 4.66 58. 0
274. 66 4.79 58.6
285.44 4.91 59.2
296. 34 5.04 59.8
307.36 5.16 60.4
318.50 5.29 61.0
346.87 5.59 62.5
5.59 62.5
376.00 5.89 64.0
405.87 6. 18 65.5
436.50 6.47 67.0
133.50 2.63| 54.0]
143.36 2.78 54.6
153. 34 2.93| 55.2
163.44 3.08 55.8
173.66 3.23 56.4
184.00 3.38 57.0
194. 46 3, 53 57.6
205. 04 3.67 58. 2
215.74 3.81 58.8
226.56 3.95 59.4|
237.50 4.09 60.0
248. 56 4. 23 60.6
259.74 4.37 61.2
271.04 4. 50 61.8
282, 46| 4.64| 62.4|
282.46 4.64 62.4
294.00 4.77 63.0]
305. 66 4.90 63.6
317.44 5.03 64.2
329. 34 5. 16
329. 34 5. 16 64.8
341.36 5.29 65.4
341.36 5.29 65.4
353. 50 5. 42 66.0
384.37 5. 73| 67.5
416.00 6.04 69. 0
448.37 6.351 70.5
481. 50 6. 65 72.0
96.00 1.84 56.0
106.26 2.01 56. 6
116.64 2.17 57.2
127. 14 2.34 57.8
137.76 2. 50 58.4
148.50 2.66 59.0
159.36 2.82 59.6
170.34 2.97 60.2
181.44 3. 13 60.8)
192.66 3.28 61.4
262.50 4.16 65.0
274.56 4.31 65. 6
286.74 4.45 66. 2
299.04 4.59 66.8
311. 46 4.73 67. 4
83.84 1.50
94.86 1.68
106.00 1.85
117.26 2.02
128.64 2.19
140. 14 2.36
151.76 2.53
163. 50 2.69
175.36 2.85
261.74 3.93
274.56 4.08
287.50 4.23
46.50
56. 16 1. 14
65.94 1.32| 54.2|
75.84 1.49 54.8
85.86 1.67 55.4
.96 53.0
53.6
51.50 .96
62.16 1.14
72.94 1.33
187.34 3.01
199. 44 3.17
211.66 3.32
204.00 3.43 62.0
215.46 3.58 62.6
227.04 3.73 63. 2
238.74 3.88) 63.8
250. 56 4.02 64.4
224.00 3.48
236.46 3.63
249.04 3.78
300. 56 4.37
313.74 4, 52
327.04 4.66
340.46 4.80
324.00 4.86 68.0
336.66 5.00] 68.6
349.44 5. 13
354.00 4.94
367.66 5.08
69. 2
381.44 5.22
362. 34
5. 27
69.8
395.34 5.36
375. 36
375.36
5. 40
70. 4
409.36 5. 49
388. 50 5. 53
71.0
423.50 5.63
421.87 5.86| 72,5
459.37 5.96
456.00 6.18 74.0
496.00 6.29
490.87 6.491 75.5
533.37 6.61
526.50 6.80 77.0
571.50 6.93
9.5
63.5
10.0 65.0
467.87 6.76 68.5
500.00 7.04| 70.0
515. 37 6.94 73. 5.
550.00 7.23 75.0
562.87 7.10 78.5
600.00 7.40 80.0
610.37 7. 24
650.00 7.55
10.5 66.5
690.37 7.86
532.87 7.31 71.5
637.87 7.70 81.5
585.37 7.52 76.5
HYDRAULIC TABLES
147
Table 9.-Area in square feet,
feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
↑ T
A
T T
A
T T
A
T
0.2
60.6
0.4
61.2
12.06 0.20 70.6
24. 24 .39 71.2
0.6
61.8
36. 54
.59 71.8
0.8
62.4
48.96
.78 72.4
56.96
14.06 0.20 80.6
28.24 .40 81.2
42.54.59 81.8
.78 82.4
16.06 0.20 90.6
32.24.40 91.2
48.54.59 91.8
64.96 .78 92.4
18.06 0.20
36. 24
.40
54. 54
.59
72.96
.79
1.0 63.0
1,2 63.6
61.50
1.4 64.2
1.6
64.8
1.8
65.4
97 73.0
74.16 1.15 73.6
86.94 1.34 74.2
99.84 1.52 74.8
112.86 1.70 75.4
71.50 .97 83.0]
86.16 1.16 83.6
100.94 1.35 84.2
115.84 1.53 84.8
130.86 1.71 85.4
2.0
66.0
2.2
66.6
126.00 1.87 76.0
139.26 2.05 76.6
2.4
67.2
152.64 2. 22| 77.2
2.6 67.8
166.14 2.39 77.8
2.8
68.4
179.76] 2.56) 78. 4
146.00 1.89 86.0
161.26 2.07 86. 6
176.64 2.25 87.2
192.14 2.42 87.8
207.76 2.59 88.4
81.50 .97 93.0
98.16 1.16 93.6
114.94 1.35 94.2
131.84 1.54 94.8
148.86 1.72 95.4
166.00 1.90 96.0
183.26 2.08 96.6
200.64 2.26 97.2
218. 14 2. 44 97.8
235.76 2.62 98.4
91.50
110.16 1.17
128.94 1.36
147.84 1.54
166.86 1.73
186.00 1.91
205.26 2.10
224.64 2.28
244.14 2.46
263.76 2.64
.98
3.0
69.0
193.50 2.73 79.0
3.2
69.6
207.36 2.90| 79.6|
3.4 70.2
221.34 3.06] 80. 2)
3.6 70.8
235.44 3. 23| 80.8|
3.8 71.4
249.66 3.39 81.4
223.50 2.77 89.0
239.36 2.94 89.6
255.34 3.10 90.2
271.44 3.27 90.8
287.66 3.44 91,4
253.50 2.79 99.0
271.36 2.96 99.6
289.34 3.14|100.2
307.44 3.31|100.8
325.66 3. 48101.4
283.50 2.81
303.36 2.99
323.34 3.16
343.44 3.34
4.0 72.0
4.2 72.6
264.00| 3. 55
278.46| 3.71 82. 6
4.4 73.2 293.04 3.86 83.2
4.6 73.8 307.74 4.02 83.8
4.8 74.4 322.56 4.17 84.4
5.0 75.0 337.50 4.33| 85. 0
5.2 75.6
5.4 76.2
82. 0
304.00 3.60 92.0
320.46 3.76 92.6
337.04 3.93 93.2
353.74 4.09| 93.8|
370.56 4, 24 94.4
344.00 3.64 102. 0
362.46 3.81 102, 6
381.04 3.97|103, 2|
399.74 4.14103.8
418. 56 4.30 104.4
363.66 3.51
384.00 3.68
404.46 3.85
425.04 4.01
445.74 4. 18
466.56 4.35
352.56 4. 48) 85.6
367.74 4.63 86.2
5.6 76.8
5.8
77.4
383.04 4.78 86.8
398.46 4.92 87. 4
387.50 4.40 95.0
404.56 4.56 95.6
421.74 4.71 96. 2
439.04 4.87 96.8
456.46 5.02| 97.4|
437.50 4.46 105. 0
487.50 4.51
456.56 4.62 105.6
508.56 4.68
475.74 4.78106. 2
529.74 4.84
495. 04
514. 46
4.94 106.8
5.10 107.4
551.04 5.00
572.46 5.16
6.0
6.2 78.6
78.0
414.00 5.07 88.0
429.66 5.22 88.6
6.4 79.2
445.44 5.36 89, 2
6.6 79.8
6.8 80.4
7.0 81.0
7.5 82.5
8.0 84.0
8.5 85.5
9.0 87.0
9.5 88.5
10.0 90.0
461. 34 5.51 89.8
477.36 5.65 90.4
493.50 5.79 91.0
534. 37 6.14| 92.5|
576.00 6.48 94.0
618.37 6.82 95.5
661.50 7.16 97.0
705.37 7.48 98.5
750.00| 7.81|100.0
474.00 5.17 98.0
491.66 5.32 98.6
509.44 5.47 99.2
527.34 5.62 99.8
545.36 5.77|100. 4|
563.50 5.92101.0
609.37 6.28 102.5
656. 00 6.64|104.0
703.37 6.99 105, 5
751.50 7.34 107.0
800.37 7.68 108. 5
850.00 8.01 110.0
633.50 6.02111.0
684. 37
6. 39/112.5
736.00 6.76114. 0816.00 6.87
788.37 7.13115. 5 873.37 7.24
841. 50 7.48(117.0 931. 50 7.61
895.37 7.84118. 5 990.37 7.97
950.00 8.19 120. 01, 050.00 8.33
534.00 5.25/108.0
553.66 5.41 108. 6
573. 44
593. 34
613.36
5.56 109.2
5. 72 109.8
594.00) 5.32
615. 66 5.48
637.44 5.64
659. 34 5.79
5.87 110. 4)
681.36 5.95
703.50 6.10
759.37 6.49
10.5 91.5
005. 37 8. 53 121. 51, 110. 37 8.68
795.37 8. 13101.5
900. 37 8. 35 111. 51,
148
HYDRAULIC TABLES
Table 9.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width ·
120 feet
Bottom width
130 feet
Depth
T
A
T T
Α
T
Å
T T
A
T
0.2 100.6 20.06 0.20 110. 6
0.4 101.2 40.24 .40 111. 2
0.6 101.8 60.54
0.8 102.4 80.96
22.06 0.20|120. 6)
24.06
0.20 130.6
26.06 0.20
44.24
.40 121. 2
48.24
.40 131. 2
.59 111.8
66.54
.59 121.8
72.54
.59 131. 8
.79112. 4
88.96.79 122.4
96.96.79|132. 4|
52.24 .40
78.54
104.96 .79
.59
1.0 103.0 101.50
1.2 103.6
1.4 104.2
1,6 104.8
.98 113. 0
1,8 105.4
122.16 1. 17113. 6
142.94 1.36 114. 2
163.84 1.55 114.8
184.86 1.74 115. 4
111.50
134. 16
156.94 1.36 124. 2
179.84 1.55 124. 8
202.86 1.74125.4
.98 123. 0
1. 17123.6
121.50 .98 133.0
146.16 1.18 133. 6
131.50
.98
158.16 1. 18
170.94 1.37 134. 2
184.94 1.37
195.84 1.56 134.8
211.84 1.56
220.86 1.75|135. 4
238.86 1.75
2.0 106.0
206.00 1.92116.0 226.00 1.93|126. 0】
246.00 1.93136. 0
266.00 1.94
2.2 106.6
2.4 107.2
2.6 107.8
2.8 108.4
227.26 2.11116. 6
227.26 2.11116.6|
248.64 2.29 117. 2
270. 14 2.47 117.8
291.76 2.65 118.4
249. 26| 2. 11|126. 6
272.64 2.30 127. 2
296. 14 2. 48 127.8
319.76 2.66 128. 4|
271.26 2.12【136. 6
296.64 2.31 137, 2
322. 14 2.49 137. 8
347.76 2.67138, 4
3.0 109.0
3,2 109.6
3.4 110.2
313.50 2.83 119. 0
335. 36 3.01 119. 6
357.34 3.18 120. 2
3.6 110.8
3.8 111.4
379.44 3.36 120.8
401.66 3.53 121. 4
343.50 2.84 129.0
367.36
391.34
415.44
3.02 129, 6
3. 20130. 2
3.38 130.8
439.66 3.55 131. 4
373.50 2.86 139. 0
399.36 3.04|139. 6
425.34 3.22 140. 2
451.44 3.39|140. 8
477.66 3.57 141. 4
293.26 2.13
320.64 2. 31
348.14 2.50
375.76 2.68
403.50 2.87
431. 36 3.05
459.34 3.23
487.44 3.41
515.66 3.59
4.0 112.0
4.2 112.6
4.4 113.2
4.6 113.8
4.8114. 4
424.00 3.71 122. 0
446.46 3.88122. 6|
469.04 4.05 123. 2
491. 74 4.22 123.8
514. 56 4.39 124. 4
464.00 3.73 132. (
488.46 3.90 132. 6
513.04 4.08 133. 2
537. 74 4, 25133.8
562. 56 4.42134.4
5.0 115.0
5.2 115.6
5.4 116.2
537.50 4. 55 125.0
560.56 4.72 125. 6
583.74 4.89 126. 2
5.6 116.8
607.04 5.05 126.8
5.8117.4
630.46 5. 21|127. 4|
6.0 118.0
654.00 5.38|128. 0
677.66 5.54128. 6
701.44 5.70129. 2
725.34 5.86 129.8
749.36 6.02130.4
587.50 4.59135. 0
612. 56 4.76 135. 6
637.74 4.93136.2
663.04 5.09136.8
688.46 5. 26 137.4
504.00 3.75 142.0
530.46 3.93|142. 6|
557.04 4. 10 143. 2
583.74 4.27 143. 8
610. 56| 4. 45|144. 4
774.00 5.46|148. 0
801. 66] 5. 63|148. 6
5.80 149. 2
857.34 5.96 149. 8
885.36 6. 13 150.4
714.00 5.42 138. 0
739.66 5.59 138.6
765.44 5.75|139.2||||| 829.44
791. 34 5.91 139.8
817.36 6.08 140.4
6.2 118.6
6.4 119.2
6.6119.8
6.8 120.4
7.0 121.0 773.50 6. 18131. 0
7.5 122.5 834. 37 6.57 132. 5
8.0 124.0 896.00 6.95 134. 0
8.5 125. 5 958. 37 7.34 135. 51, 043. 37
9.0 127.01, 021. 50| 7. 71|137. 01, 111. 50|
9.5 128. 51, 085. 37
10.0 130. 01, 150. 00
843.50 6.24 141.0 913.50
909.37 6.64|142. 5 984. 37
976.00 7. 03 144. 01, 056. 00
7.42 145. 51, 128. 37
7.80 147. 0|1, 201. 50
8.08 138. 51, 180. 37
8. 45140. 01, 250. 00
8. 18148. 51, 275. 37
8. 56150. 01, 350. 00
544.00 3.77
572.46 3.94
601.04 4.12
629.74 4.30
658.56 4.47
6. 29|151.0 983.50 6.34
6.69 152. 51, 059. 37 6.75
7.09 154. 01, 136. 00 7.15
7.49 155. 51, 213. 37 7.55
7.88 157. 01, 291. 50 7.95
8. 27 158. 51, 370. 37 8.34
8.65160. 01, 450.00 8.73
637.50 4.62 145. 0
664. 56 4.79 145. 6
691. 74 4. 96 146. 2
719. 04 5. 13|146. 8
746.46 5.30147.4
687.50 4.64
716. 56 4.82
745.74 4.99
775.04 5.16
804.46 5.33
834.00 5.50
863.66 5.67
893.44 5.84
923.34 6.00
953. 36 6. 17
10.5 131. 51, 215. 37
9. 03 161. 51, 530. 37 9.12
8. 82 141. 51, 320. 37
8. 93 151. 51, 425. 37
HYDRAULIC TABLES
149
in feet, T, and
Table 9.-Area in square feet, A, top width
top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
Τ
A
T T
A
T
A
↑ T
A
T
0.2140.6
0.4 141. 2
0.6 141.8
28.06 0.20|150.6
56.24 .40 151.2
84.54.59 151.8
90.54
0.8 142.4
112.96 .79|152. 4|
120.96
30.06 0.20 160. 6
60.24.40 161. 2
.60 161.8
.79 162.4
1.0 143.0
1.2 143.6
1.4 144. 2
1,6 144.8
1.8 145.4
141.50
.99153.0
151.50
170.16
1.18|153. 6|
198.94
1.37 154, 2
227.84
1.56154. 8
256.86 1.75|155, 4|
.99 163.0
182.16 1.18|163.6
212.94 1.37164.2
243.84 1.57 164.8
274.86 1.76 165.4
32.06 0.20|170. 6|
64. 24.40 171.2
96.54.60₤171.8|
128.96 .79 172.4
.79 172.4
161.50 .99173.0
194. 16| 1. 18|173. 6
226.94 1.37 174. 2
226.94 1.37 174.2
259.84 1.57|174. 8|
292.86 1.76 175. 4
34.06 0.20
68.24
.40
102. 54
.60
136.96
136.96
.79
171.50
.99
206.16 1. 18
240.94 1.38
275.84 1.57
310.86 1.76
2.0 146.0
2.2 146.6
2.4147.2
2.6 147.8
2.8 148.4
286.00 1.94 156. 0
315.26 2.13 156.6
344.64 2.32 157. 2
374. 14 2.50 157.8|
403.76 2.69 158.4
306.00 1.95166.0
337.26 2. 14 166. 6
337.26 2.14 166.6
368. 64 2.32167.2
400.14 2.51167.8
431.76| 2.70 168. 4|
326.00 1,95 176.0
346.00 1.95
359.26 2.14176, 6
381.26 2.14
392. 64
2,33 177.2
416.64 2.33
426, 14
2.52177.8
459.76 2.70 178.4
2.70|178.4|
452.14 2.52
487.76 2.71
3.0 149.0
3.2 149.6
433.50 2.87 159.0
463.36 3.06|159. 6
463.50 2.88|169.0
495.36 3.07169.6
3.4 150. 2
493.34 3.24 160. 2
3.6 150.8
523.44 3.42 160.8
527.34 3.25 170.2
559.44 3.43 170.8
493.50 2.89|179. 0]
527.36 3.07 179. 6
561.34 3.26 180. 2
523.50 2.90
559.36 3.08
595.34 3.27
595.44 3.44 180. 8
631.44 3.45
3.8151.4
553.66 3.60 161, 4
591.66 3.61 171. 4
629.66 3.62|181. 4|
667.66 3.63
4.0 152.0
584.00 3.78 162.0
4.2 152.6
614.46 3.96 162.6
4.4 153, 2
645.04 4.14163. 2
4.6 153.8
4.8 154.4
675.74 4.32163, 8
706. 56 4.49 164. 4
5.0 155.0
5.2 155. 6
5.4156.2
737.50 4.67 165.0
768.56 4.84 165. 6
799.74 5.01166.2
5.6156.8
5.8157.4
831.04 5. 19 166.8
862.46 5.36 167.4
624.00 3.80₤172. 0
656.46 3.98|172.6
689.04 4.15173.2
721.74| 4.33₤173. 8|
754.56 4.51 174.4
787.50 4.69|175.0】
820.56 4.86 175.6
853.74 5.04176. 2
887.04 5.21 176.8
920.46 5.39|177.4
954.00
987.66
894.00 5.53|168.0
925, 66 5.70 168. 6
957.44 5.87 169. 21, 021. 44
6.04 169. 81, 055. 34
6. 21 170. 41, 089. 36
6.0 158.0
6.2 158.6
6.4159.2
6.6 159.8 989. 34
6.8 160. 41, 021. 36
7.0 161.01, 053. 50
7.5 162. 51, 134. 37
8.0 164. 01, 216.00
8.5 165. 51, 298. 37
9.0 167.01, 381. 50
9.5 168. 51, 465. 37
10.0 170.01, 550.00
6.38 171.01, 123. 50
6. 79|172. 51, 209. 37
7. 20174. 01, 296.00
7.61 175. 51, 383. 37
8.01 177.01, 471.50
8. 41 178. 51, 560. 37
8.80 180.01, 650.00
664.00 3.81 182.0
698. 46 3.99|182.6
733.04| 4.17|183. 2
767.74 4.35 183.8
802. 56| 4. 53|184. 4|
837.50 4.70185.0
872.56 4.88 185.6
907.74 5.06 186. 2
943.04
978. 46
5.56 178. 01, 014.00
5.73 178. 61, 049. 66
5.90 179. 21, 085, 44
6.07 179. 81, 121.34
6. 24|180. 4|1, 157.36
6. 41 181. 01, 193. 50
6.83|182. 51, 284. 37
7.25 184. 01, 376.00
7.66 185. 51, 468. 37
8.07|187.01, 561. 50|
8. 47 188. 51, 655. 37
8.87 190. 01, 750.00
5.23 186.8 999.04 5.25
5.41|187. 4|1, 036. 46 5.43
5. 58188. 01, 074.00 5.60
5.76 188. 61, 111. 66 5.78
5.93 189. 21, 149. 44 5.95
6. 10 189. 81, 187.34 6. 13
6.27 190. 41, 225. 36|| 6. 30
6. 44/191.01, 263. 50 6.47
6.87|192. 5/1, 359. 37| 6.90
7.29 194. 01, 456.00 7.32
7.70 195. 51, 553. 37 7.74
8. 11|197. 0|1, 651. 50| 8.16
8. 52|198. 51, 750. 37 8.57
8.93|200. 01, 850.00 8.98
704.00 3.82
740.46 4.00
777.04 4.18
813.74 4.36
850.56 4.54
887.50 4.72
924.56 4.90
961.74 5.08
10.5 171.51, 635. 37
9.33 201.51, 950. 37 9.38
9. 19 181. 51, 740. 37
9. 26 191. 51, 845. 37
150
HYDRAULIC TABLES
feet, T, and
Table 9.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
T
T
A
ག
0.2 180.6
36.06
0.20
190.6
38.06
0.20
200.6
40.06 0.20
0.4
181.2
72. 24
.40
191. 2
76. 24
.40
201. 2
80.24 .40
0.6
181.8
108.54
.60
191.8
114. 54
.60
201.8
120.54
.60
0.8
182.4
144.96
.79
192.4
152.96
.79
202.4
160.96
.79
1.0
183.0
181.50
.99
193.0
191. 50
.99
203.0
201.50
.99
1.2
183. 6
218. 16
1. 18
193.6
230. 16
1. 18
203.6
242. 16
1. 19
1.4
184. 2
254, 94
1.38
194. 2
268.94
1.38
204. 2
282.94
1.38
1.6
184.8
291.84
1.57
194.8
307.84
1.57
204.8
323.84
1.57
1.8
185. 4
328.86
1.76
195.4
346.86
1.77
205.4
364.86
1.77
2.0
186. 0
366.00
1.96
196.0
386.00
1.96
206.0
406.00
1.96
2.2
186.6
403. 26
2. 15
196.6
425. 26
2. 15
206.6
447.26
2. 15
2.4
187.2
440. 64
2.34
197.2
464. 64
2.34
207.2
488. 64
2.34
2.6 187.8
478. 14
2.52
197.8
504. 14
2.53
207.8
530. 14
2.53
2.8
188.4
515.76
2.71
198. 4
543.76
2.72
208.4
571.76
2.72
3.0
189.0
553.50
2.90
199.0
583. 50
2.91
209.0
613. 50
2.91
3.2
189.6
591. 36
3.09
199.6
623.36
3.09
209.6
655. 36
3. 10
3.4 190.2
629. 34
3.27
200.2
663.34
3. 28
210. 2
697.34
3.29
3.6
190.8
667.44
3.46
200.8
703.44
3.47
210.8
739. 44
3.47
3.8
191.4
705. 66
3. 64
201. 4
743.66
3.65
211. 4
781.66
3.66
4.0
192. 0
744.00
3.83
202.0
784.00
3.84
212.0
824.00
3.84
4.2
192.6
782. 46
4. 01
202.6
824. 46
4.02
212.6
866.46
4.03
4.4
193. 2
821. 04
4. 19
203. 2
865. 04
4. 20
213.2
909.04
4. 21
4.6
193.8
859.74
4. 37
203.8
905, 74
4.38
213.8
951.74
4. 39
4.8
194. 4
898.56
4. 55
204.4
946. 56
4.57
214.4
994. 56
4.58
5.0
195. 0
937.50
4.73
205.0
987.50
4.75
215.0 1,037. 50
4.76
5.2
195. 6
976. 56
4.91
205. 6
1,028. 56
4.93
215. 6
1,080. 56
4.94
5.4
196. 2
1,015. 74
5.09
206. 2
1,069. 74
5. 11
216.2 1, 123. 74
5. 12
5. 6
196. 8
1, 055. 04
5. 27
206. 8
1, 111. 04
5. 29
216.8 1, 167.04
5.30
5.8
197.4 1,094. 46
5. 45
207.4 1, 152. 46
5. 46
217.4 1, 210. 46
5.48
6.0
198. 0 1, 134. 00
5.62
208.0 1, 194. 00
5.64
218. 0 1, 254. 00
5.66
6.2
198. 6
1, 173. 66
5.80
208.6 1, 235. 66
5.82
218.6 1, 297. 66
5.84
6.4
199. 2
1, 213. 44
5.98
209.2 1, 277. 44
6.00
219. 2 1, 341. 44
6.01
6.6
199.8 1, 253. 34
6. 15
209.8 1, 319. 34)
6. 17
219.8 1, 385. 34
6. 19
6.8
200. 4 1, 293. 36
6.32
210.4 1, 361. 36
6. 35
220. 41, 429. 36
6.37
7.0
201.0 1, 333. 50
6.50
211.0 1, 403. 50
6. 52
221.0 1,473. 50
6. 54
7.5
202.5 1, 434. 37
6.93
212.5 1, 509. 37
6.95
222.5
1, 584. 37
6.98
8.0
204. 0 1, 536. 00
7.35
214.0 1, 616. 00|
7.38
224. 0
1,696. 00|
7.41
8.5
205. 51, 638. 37
7.78
215.5 1,723. 37
7.81
225.5
1,808. 37
7.84
9.0
207.01, 741. 50
8.20
217.0 1, 831. 50
8. 23
227. 0
1,921. 50|
8.27
9.5 208.5 1,845. 37
210.0 1,950.00
8.61
218. 51, 940.37
8.65
228.5 2,035. 37|
8.69
10.0
9.03
220.0 2,050. 00
9.07
230.02, 150.00
9. 11
10.5 211.5 2,055. 37 9.43
9.52
221. 52, 160.37
231.5 2,265. 37
9.48
HYDRAULIC TABLES
151
in feet, T, and
in feet,
Table 9.-Area in square feet, A, top width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T T
A
↑
T
A
до
T
A
T
11
35.0
12
38.0
203.5 4.88| 36.0|
240.0 5.30 39.0
13
41.0
279.5 5.72| 42.0|
14
44.0
322.0 6.14 45.0
214.5 5.03] 37.0
252.0 5.45| 40.0|
292.5 5.86| 43.0
336.0 6.28] 46.0
225.5 5.16 38. 0
264.0 5.59] 41.0
305.5 6.01|| 44.0
350.0 6.42 47.0
236.5 5.30
276. 0 5.72
318.5 6. 14
364.0 6.56
15 47.0
367.5 6.55 48.0
382.5 6.70 49.0
16
50.0
416.0 6.97 51.0
17
53.0
18
56. 0
19 59.0
467.5 7.39 54.0
522.0 7.80| 57.0]
579.5 8.22 60.0
432.0 7.12| 52.0
484.5 7.54 55.0
540.0 7.95 58. 0
598.5 8.37 61.0
397.5 6.84 50.0
448.0 7.26 53.0
501.5 7.68 56.0
558. 08.10 59.0
617.5 8.52| 62.0
412.5 6.98
464.0 7.40
518.5 7.82
576.0 8.24
636.5 8.66
20 62.0
640.0 8.64 63.0
21
65.0
703.5 9.05 66.0
22
68.0
770.0 9.47 69.0
23 71.0
24
74.0
839.5 9.88] 72.0
912. 010. 30] 75.0]
660.0 8.79 64.0
724.5 9.20 67.0
792.0 9.62) 70.0|
862.5 10.04| 73.0|
936.0 10. 45|
76.0
680.0 8.93 65.0
745.5 9.35, 68. 0]
814.0 9.77 71.0
885. 510. 19
960. 010. 60
700. 09.08
766.5 9.50
836.0 9.91
74. 0
908.5 10. 33
77.0
984. 0 10. 75
25 77.0
987.5 10.72
78. 0
26
27
80.0 1,066. 011. 13
83.0 1,147. 511. 55
81. 0
84. 0
28
86.0 1, 232. 011. 97
87.0
29
89. 01, 319. 512. 38
90.0
30
93. 0
31
32
99.0
1,012. 5 10. 87
1, 092. 0 11. 29
1, 174. 511. 70
1, 260. 012. 12
1,348. 512. 54
92. 0 1, 410.0 12. 80 1,440. 012. 95 94. 0
95.0 1,503. 513. 22 96.0 1, 534. 513. 37 97.0
98.0 1,600.0 13. 63 1, 632. 013. 79 100. 0
33 101.0 1,699. 514. 05102. 01, 732. 514. 20103. 0
1,802. 014. 46 105. 0 1, 836. 014. 62 106. 0
1, 942. 515. 04 109. 0
2, 052. 015. 45 112. 02, 088. 0 15. 61 113. 0
2, 164. 515. 87 115. 02, 201. 516. 02116. 0
2, 280. 016. 28118. 0 2, 318. 0 16. 44 119. 0
2, 398. 5 16. 70 121. 0 2, 437. 516. 85 122. 0
79.0
82. 0
88. 0
91. 0
1.037. 511. 02
1, 118. 011. 44
85. 01, 201. 511. 85
1, 288. 012. 27
1, 377. 512. 69
80. 0
1,062. 5 11. 17
83. 0
1, 144. 011. 59
86.0
1, 228. 5 12.00
89. 0
1, 316. 012. 42
92. 0
1, 406. 5 12.84
34 104. 0
35 107. 0 1,907. 514. 88 108. 0
36 110. 0 2,016. 015. 30 111. 0
37 113.02, 127. 5 15. 71 114. 0
38 116. 02, 242. 0 16. 13 117. 0
39 119.0 2, 359. 516. 54 120.0
40 122. 02, 480.0 16. 96 123. 0
41 125.0 2,603. 5 17. 38 126. 0❘
42 128.0 2,730.0 17. 79 129. 0
43 131.0 2,859. 5[18. 21 132. 0
44 134.0 2,992. 018. 63135. 0
45 137. 0 3, 127. 5 19. 04 138. 0
46 140.0 3, 266. 0 19. 46 141. 0
47 143.0 3, 407. 5 19. 87 144. 0
48 146. 0 3, 552. 020. 29 147. 0
49 | 149.0 3,699. 520. 71 150.0
1, 470. 013. 11
1, 565. 513. 52
1, 664. 013. 94 101. 01, 696. 0 14. 09
1, 765. 514. 36 104. 0 1, 798. 514. 51
1, 870. 014. 77 107. 0 1, 904. 014. 92
1,977. 5 15. 19 110.0
2, 012. 515. 34
2, 124. 015. 76
2, 238. 516. 17
2,356.0 16. 59
2, 476. 517. 01
2,520. 017. 12124. 0 2, 560. 017. 27 125. 02, 600. 017. 42
2, 644. 5 17. 53 127. 0 2, 685. 517. 69 128. 0 2, 726. 517.84
2, 772.0 17.95 130. 02, 814. 018. 10131. 0 2, 856. 018. 26
2, 902. 518. 37 133. 0 2, 945. 5 18. 52 134. 0 2, 988. 518. 67
3, 036. 018. 78 136. 03, 080. 018. 94137. 0 3, 124. 019. 09
3, 172. 519. 20 139. 03, 217. 519. 35 140.0
3, 312. 0|19. 61 142. 0 3, 358. 019. 77143. 0
3, 454. 520. 03|145. 0| 3, 501. 5|20. 19₤146. 0
3, 600. 0|20. 45148. 0 3, 648. 020. 60|149. 0
3, 748. 520. 86 151. 0 3, 797. 521. 02 152. 0
3, 262. 519. 51
3, 404. 019. 92
3, 548. 520. 34
3, 696. 020. 76
3, 846. 521. 17
95. 0
98. 0
1,500. 0 13. 25
1, 596. 5 13. 67
50 152. 0 3,850. 021. 12153. C
4,000.0 21. 59
3,900.0 21. 28154.03, 950. 021. 44155.0
152
HYDRAULIC TABLES
Table 9.—Area in square feet, A, top width in
in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued
T, and

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
A
до
T
A
T
Τ
A
T
A
11
39.0
12
42.0
13
45.0
14
48.0
247.5 5.42 40.0
288.05.85 43.0
331.5 6.27 46.0
378.0 6.69 49.0
258.5 5.54 41.0
300.0 5.97 44. 0
344.5 6.39| 47.0|
392.0 6.82 50.0
269.5 5.65| 42.0|
312.0 6.09 45. 01
357.5 6.52 48.0
406.0 6.94 51.0
280.5 5.76
324. 06. 20
370.5 6.63
420.0 7.06
17
18
21
2002 2283* *REAR AMM**
15
51. 01
427.5 7.12 52.0
16
54.0
480.0 7.54 55. 0
442.5 7. 24 53.0
496.0 7.67 56.0
457.5 7.37 54.0
512.0 7.79 57.0
472.5 7.49
528.0 7.92
57.0
535.5 7.96 58.0
552.5 8.09) 59.0
569.5 8.22 60.0
586.5 8.34
60.0
594.0 8.38] 61. 0
612.0 8.51| 62.0
630.0 8.64 63.0
648.0 8.77
19 63.0
655.5 8.80 64.0
674.5 8.93 65.0
693.5 9.06] 66.0
712.5 9.19
20
66.0
720.0 9.22 67.0
740.0 9.35] 68.0
69.0
787.5 9.64| 70.0
72.0
75.0
858.0 10. 06
931.5 10.47 76.0
73.0
24
78.0 1, 008.010. 89
79. 0
808.5 9.77| 71.0|
880.0 10. 19
954. 510. 61
1,032. 011. 03
74.0
760.0 9.49 69.0
829.5 9.91 72.0
902. 010. 33
780.0 9.62
850.5 10.04
75.0
924. 0 10. 46
77.0
977.5 10.75
78. 0
1,000. 510.88
80.0
1,056. 011. 17
81.0
1,080. 011. 30
25
27
28
29
81.0 1,087. 511. 31
20 84.0 1,170.011. 73
87.0 1,255. 512. 15
90.0 1,344. 012. 57
93.0 1,435. 512.98
82.0
85. 0
88. 0
91.0
94. 0
30
31
96.0 1,530. 013. 40 97.0
99.0 1,627.5 13. 82 100.0
32 102. 0 1,728. 014. 24 103. 0
33 105.0 1,831. 5 14. 65 106. 0
34 108. 0 1,938. 0 15. 07 109.0❘
35 111.0 2,047. 515. 49112. 0
36 114. 0 2, 160. 0 15. 91 115. 0
37 117.0 2, 275. 5 16. 32118. 0
38 120.0 2, 394. 016. 74 121. 0
39 123. 0 2, 515. 5 17. 16 124.0
40 126. 0 2,640. 017. 57 127. 0
41 129. 0 2,767. 517. 99 130.0
42 132. 02, 898. 0 18. 41 133. 0
43 135. 0 3,031. 518. 82 136. 0
44 138. 0 3, 168. 0 19. 24 139.0
45 141.0 3, 307. 519. 66142. 0
46 144. 0 3, 450. 0 20. 08145. 0
47 147.0 3, 595. 520. 49 148. 0
48 150.0 3, 744. 020. 91 151. 0
49 153.0 3,895. 521. 33154. 0
1, 112. 511. 45
1, 196. 011. 87
1, 282. 512. 29
1,372. 0|12.71
1, 464. 5|13. 13
1, 560.013. 55 98.0
1, 658. 5 13. 96 101. 0
1, 760. 014. 38104. 0
1, 864. 5 14. 80 107. 0
1, 972. 0 15. 22110. 0
2, 082. 515. 64113. 0
2, 196. 0 16. 05116. 0
2, 312. 5 16. 47 119.0
2, 432. 016. 89122. 0
2, 554. 5 17.30 125. 0
2, 680. 017. 72 128. 0
2,808. 518. 14 131.0
2, 940.0 18. 56134. 0
3, 074. 5 18. 97 137. 0
3, 212. 0 19. 39 140.0
3, 352. 519. 81 143. 0
3, 496.020. 23146. 0
3, 642. 520. 64 149. 0
3, 792. 021. 06152.0
3, 944. 521. 48|155. 0]
1,590. 013. 69 99. 0
1, 689. 5 14. 11102. 0
1, 792. 0 14. 52 105. 0
1, 897. 514. 94108. 0
2, 006. 015. 36|111.0
2, 117. 515. 78114. 0
2, 232. 016. 20 117.0
2, 349. 516. 62 120. 0
2, 470.017. 03123.0
2, 593. 517. 45 126.0
1, 428. 0|12. 99
1, 522. 5 13. 41
1,620. 013. 83
1, 720. 514. 25
1, 824. 014. 67
1, 930. 515. 08
2,040. 015. 50
2, 152. 515. 92
2, 268. 0 16. 34
2, 386. 516. 76
2, 508. 0 17. 18
2, 632. 517. 59
2, 720. 017. 87129. 0 2, 760. 018. 01
2, 849. 518. 29 132. 0 2, 890. 518. 43
2, 982. 018. 70135. 03, 024. 018. 85
3, 117. 5 19. 12 138. 0 3, 160. 519. 27
3, 256. 019. 54 141. 0 3, 300. 019. 68
3, 397. 519. 96 144. 0
3, 542. 020. 37 147.0
3, 689. 520. 79 150.0
3,840. 021. 21 153. 0
3, 993. 521. 62 156. 0
3, 442. 520. 10
3, 588. 0 20. 52
3, 736. 520.94
3,888.0 21.35
4, 042. 521.77
22. 83. 0
86. 0
89.0
92. 0
95.0
1, 137. 511. 59
1, 222. 012. 01
1, 309. 512, 43
1, 400.0 12. 85
1,493. 513. 27|
84. 0
1, 162. 511. 73
87.0
1, 248. 0 12. 15
90.0
1, 336. 512, 57
93. 0|
96. Q|
50 156.0 4,050. 0 21. 74 157. 0
.
4, 100. 021. 89158. 0
0224, 150. 0 22. 04159. 0
22.04 159.0
19
4, 200.0 HYDRAULIC TABLES
153
Table 9.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued
T, and

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T T
A
↑ T
A
T
A
11
43.0
12
46.0
13 49.0
14 52.0
291.5 5.87) 45.0
336.0 6.31 48.0
383.5 6.74 51.0
434.0 7.18 54.0
313.5 6.07 47.0
360.0 6.51 50.0
409.5 6.96 53.0
462.0 7.39 56.0
335.5 6.25 49.0
384.0 6.71| 52.0)
435.5 7.15 55.0
490.0 7.60 58.0
357.5 6.42
408.0 6.88
461.5 7.34
518.0 7.79
15
55.0
487.5 7.61 57.0
16
58.0
544.0 8.04 60.0
17 61.0
18 64.0
19
67.0
603.5 8.46 63.0
666.0 8.89 66.0
731.5 9.32 69.0
517.5 7.83 59.0
576.0 8.27 62.0
637.5 8.70 65.0
702.0 9.13| 68.0|
769.5 9.56 71.0
547.5 8.04 61.0
608.0 8.48 64.0
671.5 8.92 67.0
738.0 9.35] 70.0
807.5 9.79| 73.0|
577.5 8.24
640.0 8.69
705.59.13
774.0 9.57
845.5 10.01
20
70.0
21
73.0
22
76.0
23
800.0 9.74 72.0
871.510.17| 75.0
946.0 10.59 78.0
79.0 1,023.511.01 81.0
24 82.0 1, 104. 011. 44
84. 0
840.0 9.99 74.0
913. 510. 41] 77.0|
990.0 10.84 80.0
1,069. 511. 27 83.0
1, 152. 011. 69 86.0
880.0 10.22 76.0
955.5 10.65
1, 034. 011.08
1, 115. 51. 51
1,200.0 11.94
920.0 10.44
79.0
997.5 10.88
82.0
1,078.0 11. 31
85.0
1, 161. 5 11. 74
88.0
1, 248.0 12. 17
25
26
27
28
29
85.0 1,187.5 11. 86
88.0 1, 274.0|12. 28|
91.0 1,363. 512. 70
94.0 1,456.0 13. 12
97.01, 551. 5 13. 54
87.0
89.0
90.0
92.0
93.0
96.0
99.0
1, 287.5 12. 36
1,378. 012. 79
1,471. 5 13. 22
1, 568. 0 13. 64 100.0
1,667. 514. 06|103. 0
91.0
94.0
1,337.5 12. 60
1, 430. 013.03
97.0
1, 525. 5 13. 46
1, 624. 0 13. 89
1,725. 5 14. 31
30 100.0 1, 650.0 13. 96 102. 0
31 103. 0 1,751. 514. 38|105.0
32 106.0 1,856. 014. 80 108.0
33 109.0 1,963. 5 15. 22 111.0
31 112.0 2,074. 0 15. 64 114.0
35 115.0 2,187. 5 16. 06 117.0
36 118.0 2,304. 016. 48|120.0
37 121.0 2,423. 5 16. 90123.0
38 124.0 2,546. 0 17. 32 126.0
39 127.0 2,671. 517. 74 129.0
40 130.0 2,800. 0 18. 16 132.0
41 133.0 2,931. 518. 57 135.0
42136.0 3,066. 0|18. 99|138.0
43 139.0 3,203. 519. 41 141.0
44 142.0 3,344. 019. 83|144.0
45 145.0 3, 487.5 20. 25 147.0
46 148.0 3, 634. 0 20. 66 150.0
47 151.0 3,783. 521. 08153. 0
48 154.0 3,936. 0|21. 50₤156.0
49 157.0 4,091.5 21. 92 159. 0
50 160.0 4,250.0 22. 34162.0
22.34
1,237.5 12. 12
1, 326. 0 12. 54
1, 417.5 12.96 95.0
1, 512. 0 13. 39 98. 0
1,609. 5 13. 81|10 1.0
1,710.014. 23 104. 0
1,813. 514. 65 107.0
1,920.0 15.07 110.0
2,029. 5 15. 49 113. 0
2, 142. 015. 92116.0
2, 257.5 16. 34 119. 0
2, 376. 0|16. 76|122. 0|
2, 497. 517. 18125.0
2, 622. 0 17.60 128.0
2,749. 5 18. 02131.0
2,880.0 18. 44 134. 0
3,013. 518.85137.0
3, 150. 0|19. 27 140.0
3, 289. 519. 69 143.0
3, 432. 020. 11146.0
3,577.5 20. 53 149. 0
3, 726.0 20. 95 152. 0
3,877. 521. 37 155. 0
4. 032.021.79|158.0||
4, 189. 522. 21 161.0
1, 770.014. 49 106. 0
1,875. 514. 91 109. 0
1,984. 015. 33 112. 0
2,095, 515. 76 115.0
2, 210.0 16. 18 118.0
2,327. 5 16. 60 121.0
2, 448. 0|17. 02 124. 0
2,571, 517. 45|127.0
2, 698. 0 17.87 130. 0
2, 827.5 18.29 133.0
2, 960. 018. 71 136.0
3,095. 519. 13139. 0
3, 234. 019. 55 142. 0|
3,375. 519. 97 145.0
3, 520. 0 20. 39|148. 0]
3, 667. 5 20. 81 151.0
3,818. 021. 23 154. 0
3, 971. 521. 65 157.0
4, 128.0 22.07 160.0
4, 287.5 22. 49 163. 0
0/22.
4,350.0 22.62 164.0 4, 450.0 22. 91 166.0
1,830.0 14.74
1,937.5 15. 16
2,048. 015. 59
2, 161. 5 16.01
2, 278. 0 16. 44
2,397. 5 16. 86
2, 520. 017. 28
2, 645. 5|17. 71
2, 774. 018. 13
2,905. 518. 55
3,040.0 18. 97
3, 177. 519. 40
3, 318. 0 19. 82
3, 461. 520. 24
3, 608. 0|20. 66
3, 757.5 21.08
3, 910. 021.50
4,065. 521. 92
4.224.0 22. 34
4, 385. 5 22. 76
4,550.0 23. 18
563189°-44- -11
154
HYDRAULIC TABLES
Table 9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T
A
་
T
A
T T
A
→
11
51.0
379.5 6.58 53.0
12
13
22
54.0
432.0 7.05 56.0
57.0
14
60.0
487.5 7.51 59.0
546.0 7.97 62.0
401.5 6.73 55.0
456.0 7.21 58.0
513.5 7.68 61.0
574.0 8.14] 64.0
423.5 6.87| 57.0|
480.0 7.35 60.0
539.5 7.831 63.0
602.08.31| 66.0
445.5 7.00
504.0 7.49
565.5 7.98
630.0 8.46
15 63.0
16
66.0
607.5 8.43 65.0
672.0 8.88 68.0
17
69.0
739.5 9.33 71.0
18
72.0
810.0 9.77 74.0
19
75.0
883.5 10. 21
77.0
637.5 8.61 67.0
704.09.06 70.0
773.5 9.51] 73.0
846.0 9.96| 76.0
921. 510. 41 79.0
667.5 8.77 69.0
736.0 9.24 72.0
807.5 9.69 75.0
882.0 10. 15 78.0
959.5 10.60
697.5 8.93
768.0 9.40
841.5 9.87
918. 0 10.33
81.0
997.5 10.78
20
78.0
960.0 10.65
80.0
21
22
23
ક્ય
81.0 1,039. 511.09
84.0 1, 122. 011. 53
87.0 1,207.511.96 89.0
24 90.0 1,296.0 12.40
83.0
86. 0
92.0
25
1,000.0 10.86
1,081. 5 11. 30
1, 166. 011. 74
1, 253. 5 12. 18
1,344. 012. 62
1, 437. 5 13. 05
1, 534. 0 13. 49/100.0
1, 633. 513. 92103. 0
1, 736. 014. 35 106. 0
1,841. 5 14. 78 109. 0
82.0
1,040.011.05
84.0
1,080. 011. 24
85.0
88. 0
91.0
94.0
1, 123. 511. 50
1, 210. 011. 94
1, 299. 5 12. 38
1, 392. 012. 83
87.0
1, 165. 5 11. 69
90.0
1, 254. 0 12. 14
93.0
1,345. 5 12. 58
96.0
1, 440. 0 13. 03
97.0
99.0
93.0 1,387.512.83 95.0
26 96.0 1, 482. 013. 26 98.0
27 99.0 1,579.5 13. 69101.0
28 102.0 1,680. 0 14. 12 104. 0
29 105.0 1,783. 514. 55107.0
1
30 108.0 1,890. 0 14. 98 110. 0
31 111.0 1.999. 5 15. 41 113.0
32 114.0 2, 112. 015. 83 116.0
33 117.02, 227. 516. 26 119. 0
34 120.0 2,346. 016. 69 122.0
35 123.0 2,467. 5 17. 11125.0
36 126.0 2,592. 0 17. 54 128.0
37 129.0 2,719. 517. 96131.0
38 132.0 2,850. 018. 39134. 0
39 135.0 2,983. 5 18.81 137.0
1,950. 015. 21|112. 0
2, 061. 515. 64115. 0
2, 176.0 16. 07118. 0
2,293. 516. 50 121.0
2, 414. 0 16. 93 124.0
2, 537.5 17.36 127.0
2, 664.0 17.78130.0
2,793. 5 18. 21 133. 0
2, 926. 018. 64 136.0
3, 061. 519. 06139.0
40 138.0 3, 120.0 19. 23 140.03, 200.0 19. 49 142.0
41 141.0 3, 259. 519. 66143. 0
42 144. 0 3, 402. 0 20. 08 146. 0
43 147.0 3.547. 5 20. 50 149.0
44150.0 3,696. 0 20. 92 152. 0
45153.0 3,847. 5 21. 35 155.0||
46 156.0 4,002. 021. 77 158. 0
47159.0 4, 159. 522. 19161.0
48 162.0 4. 320. 0 22. 61 164. 0
49 165.0 4,483. 5 23. 03 167.0
3, 341. 5 19. 91 145. 0
3, 486. 020. 33 148. 0
3, 633. 520. 76 151.0
3, 784. 021. 18154. 0
3,937. 5|21.60₤157.0
4, 094. 022. 03|160. 0
4, 253. 522. 45 163. 0
4, 416.0 22. 87166.0
4, 581.5 23. 30169.0
1, 487.5 13. 26
1, 586. 013. 70|102. 0
1, 687. 514. 14105.0
1, 792. 014. 57 108. 0
1,899. 515. 01 111.0
2, 010. 015. 44114. 0
2, 123. 5 15. 87 117.0
2, 240. 0 16. 31 120. 0
2, 359. 516.74123.0
2, 482. 017. 17 126.0
2,607. 517. 60 129.0
2,736. 0 18. 02132.0
2, 867. 5 18. 45 135.0
3, 002. 018. 88138.0
3, 139. 519. 31 141.0
3, 280.0 19.73 144.0
3, 423.5 20. 16147.0
3, 570.0 20. 58 150.0
3, 719. 521. 01 153.0
3, 872. 021. 43 156.0
4,027. 5|21. 86|159.0
4, 186. 022. 28 162.0
4, 347. 522. 71 165. 0
4, 512. 023. 13168. 0
4, 679. 5 23. 55 171.0
1, 537. 513. 47
1, 638. 013. 91
1, 741. 514. 35
1,848. 014. 79
1,957. 5 15. 23
2,070.0|15. 66
2, 185. 516. 10
2, 304. 016. 53
2, 425. 516.96
2,550.0 17. 40
2,677. 5 17. 83
2, 808. 018. 26
2, 941. 5 18. 69
3,078.019. 12
3, 217. 5 19. 55
3,360. 0 19. 97
3, 505. 5 20. 40
3, 654. 020. 83
3,805. 521. 26
3,960.0 21.68
4, 117.5 22. 11
4, 278.0 22. 53
4, 441. 522.96
4, 608.0 23. 38
4, 777. 5 23. 81
50 168.0 4, 650.0 23. 45 170.0 4,750.0 23. 72172. 0 4, 850. 023. 98 174. 0 4, 950. 0 24. 23
HYDRAULIC TABLES
155
Table 9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
A
T
A
gr
-
T
A
11 59.0
12
62.0
467.5 7.12 61.0
528.0 7.62 64.0
13
65.0
591.5 8.12 67.0
14
68.0
658.0 8.60 70. 0
15
71.0
727.5 9.08 73.0
16
74.0
800.0 9.56] 76. 0
17
77.0
875.5 10.03 79.0
18
80.0
19
954. 010. 50
83. 01, 035. 5 10. 96
82.0
85. 0
489.5 7.23 63.0
552.0 7.75 66.0
617.5 8.25 69.0
686.0 8.74 72.0
757.5 9.23 75.0
832.0 9.71 78.0
909. 510. 19 81.0
990. 010. 66 84.0
1,073. 511. 12 87.0
511.5 7.34 65. 0
576.0 7.86 68.0
533.5 7.44
600.0 7.97
643.5 8.37 71.0
714. 0 8.87 74.0
669.5 8.49
742.0 9.00
787.5 9.37 77.0
864.0 9.85 80.0
943.5 10. 33
1,026. 0 10.81
817.5 9.50
896.0 9.99
83.0
977.5 10.48
86.0
1,062. 010. 96
1, 111. 511. 28
89. 0
1, 149. 5 11. 44
20
86.0 1, 120. 011. 42
88. 0
21
89.0 1,207. 511. 87
91. 0
22
92. 0 1,298.0 12. 32
94. 0
23
97.0
24
1, 160. 0 11. 59
1, 249. 512.05
1,342. 012. 50
1, 437. 5 12. 96
1, 536. 0 13. 41
90. 0
93.0
96.0
99. 0
102. 0
1, 200. 011. 75
1, 291.5 12. 22
1,386.0 12. 68
1, 483. 5 13. 14 101. 0
1, 584. 0 13. 59 104. 0
92. 0
1, 240. 011. 91
95. 0
1, 333. 5 12. 38
98. 0
1, 430. 0 12. 85
1,529. 5 13. 31
1, 632. 0 13. 77
95.0 1,391.5 12. 77
98.0 1, 488. 0 13. 22|100. 0
25 101.0 1,587. 5 13. 67 103. 0
26 104. 0 1, 690. 014. 11 106. 0
27107.0 1,795. 5 14. 56 109. 0
28110. 0 1, 904. 015. 00 112. 0
29 113.0 2,015. 5 15. 44 115. 0
30116. 02, 130. 0 15. 88 118. 0
31 119. 0 2, 247. 5 16. 31 121. 0
32 122. 02, 368. 0|16. 75124. 0|
33 125. 0 2, 491. 5 17. 18 127.0❘
34 128. 02, 618. 0 17. 62 130. 0
35 131.0 2, 747. 5 18. 05 133. 0
36 134.0 2,880. 0 18. 49 136. 0
37 137.0 3,015. 518. 92 139.0
38 140.0 3, 154. 0 19. 35 142.0
39143. 0 3,295. 5 19. 78 145. 0
40 146. 0 3, 440. 0 20. 21 148. 0
41 149. 0 3, 587. 520. 64 151.0
42 152. 0 3,738. 021. 07154. 0
43 155. 0 3,891. 5 21. 50 157. 0
44 158.0 4,048. 0 21. 92 160. 0
45 161. 0 4, 207. 522. 35 163. 0
46 164. 0 4, 370. 022. 78 166. 0
47 167. 0 4, 535. 523. 20169. 0
48 170. 0 4, 704. 0|23. 63|172. 0|
49 173.0 4,875. 5 24. 06 175. 0
1,637. 5 13. 86 105. 0
1, 742. 014. 31 108. 0
1, 849. 5 14. 75 111. 0
1, 960. 015. 20114. 0
2,073. 515. 64 117. 0
2, 190. 016. 08 120. 0
2, 309. 516. 52 123. 0
2, 432. 0|16. 96|126. 0|
2, 557. 5 17. 40129.0
2, 686. 0,17.84 132. 0
1,687. 5|14. 05|107. 0
1, 794. 014. 50 110. 0
1,903. 5 14. 95 113. 0
2, 016. 015. 39 116. 0
2, 131. 5 15. 84 119. 0
1,737. 5 14. 23
1, 846. 0 14. 68
1,957. 515. 13
2, 072. 015. 58
2, 189. 5 16.03
2, 310.0 16. 48
2, 250. 0 16. 28 122. 0
2, 371. 5 16. 73 125. 02, 433. 5 16. 93
2, 496. 0 17. 17 128. 0| 2, 560. 0|17. 37
2,623. 5 17. 61|131. 0 2, 689. 517. 81
2, 754. 018. 05 134. 0 2,822. 0 18. 25
2, 887. 5 18. 49 137. 0
2,817. 5 18. 27 135. 0
2, 952. 018. 71138. 03, 024. 0 18. 92 140. 0
3,089. 519. 14141. 0 3, 163. 519. 36 143. 0
3, 230. 019. 57 144. 0 3, 306. 0|19. 80 146. 0
3, 373. 520. 01|147. 0 3, 451. 520. 23 149. 0|
3, 520. 020. 44 150. 03, 600. 020. 66 152. 0
3, 669. 520. 87 153. 0 3, 751. 521. 10 155. 0
3, 822. 021. 30 156. 0 3, 906. 021. 53 158. 0
3, 977. 521. 73 159. 0 4, 063. 521. 96 161. 0
4, 136. 0 22. 16162. 0 4, 224. 0 22. 39 164. 0
4, 387. 5 22. 82 167. 0
4, 554. 023. 25 170. 0
4, 723. 5 23. 68173. 0
4, 896. 024. 11 176. 0
5, 071. 5 24. 54 179. 0
4, 297. 5 22. 59 165. 0
4, 462. 0 23. 02 168. 0
4, 629. 5 23. 45 171. 0
4, 800. 0|23. 87|174. 0
4, 973. 524. 30 177. 0
2, 957. 5 18. 70
3, 096. 0 19. 13
3, 237. 519. 57
3, 382. 0 20.01
3, 529. 5|20. 45
3, 680. 0 20.88
3, 833. 521. 32
3, 990.0 21. 75
4, 149. 522. 19
4, 312. 022. 62
4, 477. 5 23.05
4, 646. 0 23. 48
4, 817.5 23.91
4, 992. 0|24. 34
5, 169. 524. 77
50 176.0 5,050. 024. 48 178. 0
5,350. 0 25. 20
5, 150. 024. 73 180. 0
024. 73 180.
5, 250. 0 24. 97182. 0
156
HYDRAULIC TABLES
Table 9.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width,
35 feet
Bottom width,
40 feet
Bottom width,
45 feet
Bottom width,
50 feet
Depth
T
A
T
T
A
T
A
T
A
T
HRIE BOE** 222I*
11 68.0
12
71.0
566.5 7.59 73. 0
636.0 8. 13
76.0
13
74.0
708.5 8.65 79.0
621.5 7.80 78.0
696.0 8.36 81.0
773.5 8.90 84.0
14
77.0
784.0 9.17 82.0
854.0 9.44] 87.0
676.5 7.99 83.0
756.0 8.56 86.0
838.5 9.13 89.0
924.0 9.68 92.0
731.5 8.16
816.0 8.75
903.5 9.33
994.0 9.89
15
80.0
862.5 9.68 85.0
16 83.0
17
18
944. 0 10. 18
86.0 1, 028. 510. 68
89. 0 1, 116. 011. 17
92.0 1, 206. 5 11. 66
88.0
91.0
94. 0
97. 0
937.5 9.96 90.0
1, 024. 010. 48 93. 0|
1, 113. 510. 99 96.0
1, 206. 011. 50 99. 0
1, 301. 5 11. 99 102. 0
1,012. 5 10. 22
1, 104. 0|10. 75
1, 198. 5 11. 28 101. 01, 283. 511. 53
1, 296. 0 11. 79 104. 0 1, 386. 012. 06
1, 396. 5 12. 30 107. 0 1, 491. 512. 59
95.0
98. 0
1,087. 5 10. 45
1, 184. 0 10.99
19
21
22
1, 500. 0 12. 81 110.0
1, 606. 5 13. 31 113. 0
716. 0 13. 80 116. 0
1, 828. 5 14. 29 119. 0
1,
1, 600. 013. 10
1, 711. 5|13. 61
1, 826. 014. 12
1, 943. 5 14. 62
1, 400. 0 12. 49 105. 0
1, 501. 5 12. 98 108. 0
1, 606. 0|13. 46 111. 0
1, 713. 5 13. 94 114. 0
1,824. 014. 42 117. 01, 944. 0 14. 78 122. 02, 064. 0 15. 12
20 95.0 1,300.012. 14 100.0
98.0 1, 396.512. 61 103. 0
101.0 1, 496. 0 13. 09|106. 0
23 104. 0 1, 598. 5 13. 55 109. 0
24 107. 0 1,704. 014. 02 112.0
25 110. 0 1, 812. 5 14. 48 115. 0
26 113.0 1,924. 014. 94 118. 02, 054. 015. 36 123. 0
27 116. 02, 038. 5 15. 40 121. 0
28 119. 02, 156. 0 15. 86 124. 0
29 122. 0 2, 276. 5 16. 31|127. 0
30 125. 0 2, 400. 016. 76 130. 0
31 128.0 2, 526. 5 17. 21 133. 0
32 131.0 2,656. 0 17.66 136.0
33 134.0 2,788. 5 18. 11 139.0
34137.0 2,924. 0 18. 55 142. 0
35 140.0 3,062. 5 19. 00 145. 0
36 143. 03, 204. 0 19. 44 148. 0
37 146.03, 348. 519. 88151. 0
38149.0 3, 496. 0|20. 32|154. 0
39 152.0 3,646. 5 20. 76 157. 0
40155. 0 3, 800. 0 21. 20 160. 0
41158. 03, 956. 5|21. 64|163. 0
42 161.0 4, 116. 0 22.08 166.0
43164.0 4, 278. 522. 51 169. 0
44 167.0 4, 444. 0 22. 95 172. 0
45 170.0 4,612. 5 23. 38175.0
46 173. 0 4, 784. 0 23. 82 178. 0
47 176.0 4,958. 5 24. 25 181. 0
48 179.05, 136. 0 24. 68 184. 0
1, 937. 5 14. 89 120. 0
2, 173. 5 15. 82 126. 0
2, 296. 016. 29 129. 0
2, 421. 5 16. 75 132. 0
2, 550. 017. 21 135. 0
2, 681. 5 17. 67 138. 0
2, 816. 018. 12141.0
2, 953. 5 18. 58 144. 0
3, 094. 019. 03147. 0
3, 237. 519. 48 150. 0
3, 384. 0 19. 93 153. 0
3, 533. 5|20. 38 156. 0
3, 686. 020.82 159. 0
3, 841. 521. 27 162. 0
4, 000. 0 21. 71 165. 0
4, 161. 522. 16168. 0
4, 326. 0 22. 60 171. 0
4, 493. 523. 04174. 0
4, 664. 023. 48 177.0
2, 062. 5 15. 26 125. 0
2, 184. 0 15. 74 128. 0
2, 308. 5 16. 22 131. 0
2, 436. 016. 69 134. 0
2, 566. 5 17. 16 137. 0
2, 700. 017. 63|140.0
2, 836. 5 18. 09 143. 0
2, 976. 018. 56 146. 0
3, 118. 5 19. 02149. 0
3, 264. 0 19. 48 152. 0
3, 412. 519. 93 155. 0
3, 564. 0 20. 39 158. 0
3, 718. 520. 84 161.0
3,876. 0 21. 30|164. 0
4, 036. 5 21. 75 167. 0
4, 200. 0 22. 20 170. 0
4, 366. 522. 64 173. 0
4, 536. 0 23.09 176.0
4, 708.5 23. 54 179. 0
4, 884. 023. 98182.0
5,062.5 24. 43 185. 0
4, 837.5 23. 92180.0
5, 014. 024. 36 183. 05, 244. 0 24. 87188. 0
5, 193. 5 24. 79 186. 0 5, 428. 525. 31191. 0
5, 376. 025. 23 189.0 5, 616. 0 25. 75 194. 0
49 182.0 5, 316. 5 25. 12 187.05, 561. 525. 67 192. 0
5, 806. 5 26. 19/197. 0
2, 187. 5 15. 61
2, 314. 016. 10
2, 443. 516. 58
2, 576. 017. 06
2, 711. 5 17. 54
2, 850. 0 18. 02
2, 991. 5 18. 49
3, 136.0 18.96
3, 283. 519. 43
3, 434. 0 19. 90
3, 587. 520. 36
3, 744. 020. 82
3, 903. 521. 28
4, 066. 021. 74
4, 231. 5 22, 20
4. 400. 022. 65
4, 571.5 23. 11
4, 746. 0 23. 56
4, 923.5 24.01
5, 104. 0 24. 46
5, 287. 5 24. 91
5, 474.0 25. 36
5, 663. 525. 81
5,856. 026. 25
6, 051. 526. 70
27. 50 185.0 이
​14
6, 250.0 5,500.0 25. 55190. 0 5,750.0 26. 10195.0
.
이
​0276,000.0 26. 63 200.0
HYDRAULIC TABLES
157
T, and
Table 9.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 12 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T Τ
A
T
A
T T
A
11
12
13
1, 061. 5 8.87 123. 01, 171. 5 9. 04
1, 176. 0 9. 54 126. 0|
1, 293. 5 10. 20129. 0
1, 414. 010. 84 132. 0
1, 296. 0| 9.72
1, 423. 510. 40
1, 554. 011.06
93.0 841.5 8.44 103. 0
96.0 936. 09.06 106. 0
99.0 1,033.5 9.67 109. 0
14 102. 0 1, 134. 010. 26 112. 0
951. 58.68 113. 0]
1,056. 0 9.32116. 0
1, 163. 5 9.96 119. 0
1, 274. 010. 57 122. 0
1, 387. 511. 18/125. 0
1, 504. 011. 78128.0
1, 746. 012. 94 134. 0
1, 871. 513. 51 137. 0
15 105.0 1, 237. 5 10. 85 115. 0
16 108. 0 1,344. 011. 42 118. 0
17 111.0 1,453. 5|11. 98|121.01, 623. 512. 37 131. 0
18 114.0 1,566. 012. 54 124.0
19 117.0 1, 681.5 13.09 127.0
20 120.0 1,800. 0 13. 62 130. 0
21 123.0 1,921. 5 14. 16 133. 0
22 126.0 2,046. 014. 69 136. 0
23 129.0 2, 173. 515. 21 139.0
24 132.0 2, 304. 015. 72 142.0
25 135.0 2,437. 5 16. 23145.0
26 138.0 2, 574. 0 16. 74 148. 0
27 141.02, 713. 5 17. 25 151. 0
28 144.0 2, 856. 017. 75 154. 0
29 147.0 3, 001. 5 18. 24 157. 0
30 150.0 3, 150. 018. 73 160. 0
31 153.0 3, 301. 5 19. 22 163. 0
32 156.0 3, 456. 0 19. 71 166. 0
33 159. 0 3, 613. 520. 19 169. 0
34 162.0 3, 774. 0 20. 67 172. 0
35 165.0 3, 937. 5 21. 15 175. 0
36 168. 0 4, 104. 021. 62 178. 0
37 171.0 4, 273. 522. 10181. 0
38 174.0 4, 446. 022. 57 184. 0
39 177.0 4,621. 5 23. 04 187.0
40 180.0 4,800. 023. 50/190. 0
41 183. 0 4, 981. 523. 97193. 0
42 186. 0 5, 166. 024. 43 196. 0
43 189.05, 353. 524. 90₤199. 0
44192.0 5, 544. 0 25. 36 202. 0
45 195.0 5,737. 5 25. 82 205. 0
46 198.0 5,934. 0 26. 27 208. 0
47 201.0 6, 133. 526. 73 211. 0
48 204. 0 6, 336. 0 27. 19214. 0
49 207. 0 6, 541. 5 27. 64 217.0
1, 537. 511. 47 135. 0
1, 664. 012. 09 138. 0
1,793. 512. 69 141. 0
1, 926. 013. 29 144. 0
2, 061. 513. 88 147.0
2, 200. 014. 46 150. 0
1, 687. 5 11. 71
1, 824. 012. 35
1, 963. 512. 98
2, 106. 013. 60
2, 251. 514. 20
2, 400. 014. 80
2, 000. 0 14. 07 140.0
2, 131. 514. 63 143.0 2, 341. 515. 04 153. 02, 551.5 15. 40
2, 266. 015. 18146. 02, 486. 015. 60 156. 0 2, 706. 0 15.98
2, 403. 515. 72149. 02, 633. 516. 16 159. 02, 863. 516. 56
2, 544. 016. 25 152. 0 2, 784. 016. 72 162. 03, 024. 017. 13
2,687.5 16. 78 155. 02, 937. 5 17. 27 165.0
2, 834. 017. 31158. 03, 094. 017. 81 168. 0
2, 983. 5 17. 83 161. 0 3, 253. 518. 35171. 0
3, 136. 0 18. 34 164. 0 3, 416. 0 18. 88 174. 0
3, 291. 5 18. 86 167. 0 3, 581. 5 19. 41 177. 0
3,750. 019. 93 180. 0
3, 450. 019. 36 170.0
3,611. 519. 87173. 03, 921. 520. 45 183. 0
3, 776. 020. 37 176. 0 4, 096. 0 20. 96 186. 0
3, 943. 520. 87 179. 0 4, 273. 521. 48 189. 0
4, 114. 021. 36|182. 0 4, 454. 0 21. 99 192. 0
3, 187. 517.69
3, 354. 018. 25
3, 523. 518. 81
3, 696. 019. 36
3, 871. 5 19.90
4, 050. 0 20. 44
4, 231. 520.97
4, 416. 021. 50
4, 603. 522. 03
4, 794. 022. 55
4, 287. 521. 85 185. 0 4, 637. 5 22. 49195. 0 4, 987. 523. 07
4, 464. 0 22. 34 188. 0 4, 824. 0 22. 99 198. 0 5, 184. 0 23. 59
4, 643. 5 22. 83 191.0 5,013. 523. 49 201. 05, 383. 524. 10
4, 826. 023. 31 194. 05, 206. 023. 99204. 0 5, 586. 0 24. 61
5,011. 523. 79 197. 0 5, 401. 5 24. 48 207. 0 5, 791. 525. 11
5, 200. 0|24. 27|200. 0
5, 391. 5 24. 75 203. 0
5, 586. 025. 23 206. 0
5, 783. 525. 70 209. 0
5, 984. 0 26. 17 212. 0
6, 187. 526. 64 215. 0
6, 394. 027. 11 218. 0
6, 603. 5 27. 58|221.0
6, 816. 028. 04 224. 0
7, 031. 528. 51 227. 0
5, 600. 0|24. 98 210. 0|
5, 801. 525. 46213. 0
6, 006. 025. 95 216. 0
6, 213. 526. 44 219. 0
6, 424. 0 26. 92 222.0
6, 637. 5 27. 40 225. 0
6, 854. 0 27. 88 228. 0
7,073. 528.36 231. 0
7, 296. 028. 83 234. 0
7, 521. 529. 30 237. 0
6, 000. 025. 62
6, 211. 526. 12
6, 426. 026. 62
6, 643. 527. 11
6, 864. 027. 61
7, 087. 528. 10
7, 314. 028. 59
7, 543. 5|29. 07
7, 776. 029. 56
8, 011. 530. 04
8, 250. 030. 50 210.0 6, 750. 0 28.09 220.0
52
7, 250.0 28.97230. 0
5
7, 750.0 29. 78240.0
158
HYDRAULIC TABLES
Table 9.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T T
A
T T
A
T
A
↑
11 133.01, 281. 5| 9. 18|143. 0
12 136.0 1,416. 0 9.88 146. 0
13 139.0 1, 553. 5 10. 58 149.0
14 142.0 1,694. 0|11. 26|152. 0
15 145.0 1, 837. 5 11. 93 155. 0
16 148.0 1, 984. 0 12. 58 158. 0
17151.0 2, 133. 5 13. 23 161. 0
18154.0 2, 286. 0 13. 86164. 0
19 157.0 2, 441. 5 14. 49 167.0
20 160.0 2, 600. 0 15. 11 170. 0
21 163.0 2, 761. 5 15. 72 173. 0
22 166.0 2, 926. 0 16. 32 176. 0
23 169.0 3, 093. 5 16. 91 179.0
24 172.0 3, 264. 0 17. 50 182. 0
25 175.0 3, 437. 5 18. 08185.0
26 178.0 3, 614. 0 18. 65 188.0
27 181.0 3,793. 5 19. 22 191.0
28 184.0 3,976. 0 19. 79 194.0
29 187.0 4, 161. 520. 34 197.0
1, 391.5 9. 30|153.0
1, 536. 0 10. 02 156. 0
1, 683. 5 10. 73 159. 0
1, 834. 011. 43 162. 0
1, 987. 5 12. 11 165.0
2, 144. 012. 79 168.0
2, 303. 513. 45 171.0
2, 466. 0 14. 10 174. 0
2, 631. 514. 74 177.0
2, 800. 0 15. 38|180.0
2, 971. 516. 00183.0
3, 146. 016. 62 186. 0
3, 323. 5 17. 23 189. 0
3, 504. 017. 83192. 0
1,501. 5 9. 40163.0
1, 656. 010. 14166. 0
1, 813. 5 10. 87169.0
1, 974. 011. 58 172.0
?
2, 137. 512. 28 175.0
2, 304. 012. 97 178.0
2, 473. 513. 64 181. 0
2, 646. 014. 31184. 0
2, 821. 5 14. 97 187.0
3,000.0 15. 62 190. 0
3, 181. 5 16. 26193.0
3, 366. 016. 89196. 0
3, 553. 5 17. 51199.0
3, 744. 018. 13 202. 0
3, 687. 5 18. 42 195.0 3, 937. 5 18. 74 205. 0
3, 874.0 19.01 198. 0 4, 134. 019. 34 208. 0
4,063. 519. 60 201.0 4, 333. 519. 94211. 0
4, 256. 0|20. 17|204. 0 4, 536. 020. 53 214. 0
4, 451. 520. 75 207.04, 741. 521. 11 217.0
1, 611. 5 9.50
1, 776. 0 10. 25
1, 943. 5 10.99
2, 114. 011. 71
2, 287.5 12. 43
2, 464. 0 13. 13
2, 643. 513. 82
2, 826. 0 14. 50
3,011. 515. 17
3, 200.0 15. 83
3, 391. 5 16. 49
3, 586. 017. 13
3, 783. 517. 77
3, 984. 018. 40
4, 187.5 19.02
4, 394. 0 19.64
4, 603. 520. 25
4, 816. 0[20. 85
5,031, 5|21. 45
30 190.0 4,350. 0 20. 90 200.0 4, 650.0 21. 31|210.0 4, 950.0 21. 69 220.05, 250.0 22. 04
31 193.0 4, 541. 521. 45 203. 0 4, 851. 521. 88213.0 5, 161.5 22.27 223.0 5,471, 522. 63
32196.0 4,736.0 21.99 206.0 5,056. 022. 43 216.0 5, 376.0 22.84 226.0 5, 696. 023. 21
33 199.0 4,933. 5 22.53 209.05, 263. 522. 99219.0 5, 593. 523. 41 229.05, 923.5 23. 79
34 202.05, 134.0 23. 06 212.0 5, 474.0 23. 54 222.05, 814.0 23.97 232.0 6, 154. 024. 36
35 205.05, 337. 5 23. 60 215.05, 687.5 24.08 225.0
36 208.0 5,544. 024. 13218. 05, 904. 024. 62 228. 0
37 211.0 5,753. 5|24. 65|221. 0 6, 123. 525. 16231. 0
38 214.0 5, 966. 0 25. 17|224.0 6, 346. 0 25. 69234.0
39 217.0 6, 181. 5|25. 69|227.0 6, 571. 526. 22 237.0
40 220.0 6, 400.0 26. 21 230.0
41 223.0 6,621. 526. 72233.0
42 226.0 6, 846. 0 27. 23 236.0
43 229.0 7,073. 527.74 239.0
44 232.0 7, 304. 0 28. 24 242.0
6, 800.0 26. 75 240.0
7, 031. 527. 27 243.0
7, 266.0 27. 79 246.0
7, 503. 528. 31 249.0
7, 744. 0 28. 83 252. 0
45 235.0 7, 537.5 28. 74245. 0 7, 987. 529. 34 255. 0
46 238.0 7,774. 0 29. 24 248. 0 8, 234. 0 29. 85258. 0
47 241.0 8,013. 529. 74 251.08, 483. 530. 36 261.0
48 244.0 8, 256. 030. 23 254. 0 8, 736. 030. 86 264. 0
49 247.0 8,501. 530. 73257.0 8, 991. 531. 37 267. 0
6,037.5 24. 52235.0
6, 264. 0 25. 08238. 0
6, 493. 5 25. 62241.0
6, 726.0 26. 17244.0
6, 961. 526. 71 247.0
7, 200.0 27. 25 250.0
7, 441. 527.78253.0
7, 686. 028. 32 256.0
7, 933. 528.85 259.0
8, 184. 0 29. 37 262, 0
8, 437. 529.89 265.0
8, 694. 0 30. 41 268.0
8, 953. 5 30. 93 271.0
9, 216. 031. 45274. 0
9, 481. 531.96277.0
6, 387. 524.93
6, 624. 0 25. 50
6, 863. 526. 06
7, 106. 0 26. 61
7, 351. 527. 17
7, 600.0 27. 71
7, 851.5 28. 26
8, 106. 0 28.80
8, 363. 5 29. 34
8, 624.0 29.88
8, 887. 530. 41
9, 154. 030. 94
9, 423. 531. 47
9, 696. 031.99
9, 971. 532. 52
50 250.0 8,750. 031. 22260.0 9, 250. 031. 87 270. 0
031.
10,
9, 750.0 32. 47 280.010, 250. 033. 03
HYDRAULIC TABLES
159
Table 9.-Area in
in
square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
T,
T, and
Depth
side slopes 1½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
150 feet
Bottom width
170 feet
T
A
↑ T
A
Т T
A
T
A
*
11 173.0 1, 721. 5 9. 58 183. 0
12 176.0 1,896. 010. 35 186. 0
13 179.0 2,073. 511. 10 189. 0
14 182.0 2, 254.0 11.83192. 0
15 185.0 2,437. 512. 56 195. 0)
16 188.0 2,624. 0 13. 27|198.0
17 191.0 2,813. 5|13. 98/201.0
18194. 0 3,006. 014. 67 204. 0
19 197.0 3, 201. 5 15. 35207. 0
20 200.0 3,400. 016. 03 210. 0
21 203.0 3,601. 516. 70213. 0
22206. 0 3, 806. 0 17. 35 216. 0
23 209. 0 4,013. 518. 00219. 0
24 212.0 4,224. 0 18. 65 222. 0
1, 831.5 9.66193. 0 1, 941. 5 9. 72 203. 0
2,016. 010. 43196. 02, 136. 010. 51 206. 0
2, 203. 511. 19199. 0 2, 333. 5 11. 28209. 0
2,394. 011. 94202. 0 2, 534. 012. 04 212. 0
2, 587. 512. 68 205. 0
2,784. 013. 40 208. 0
2,983. 5|14. 12|211. 0
3, 186. 014. 83214. 0
3, 391. 515. 52 217. 0
3, 600. 016. 21 220. 0
3, 811. 516. 89|223. 0
4, 026. 0 17. 56 226. 0
4, 243. 518. 22|229. 0
4, 464. 0 18. 87 232.0
2, 737. 512. 79 215. 0
2, 944. 0 13. 52 218. 0
3, 153. 5 14. 25|221. 0
3, 366. 014. 97 224. 0
3, 581. 5,15. 67 227. 0
3, 800. 016. 37 230. 0
4, 021. 517. 06 233. 0
4, 246. 0 17.74236. 0
4, 473. 5 18. 41 239. 0
4,704. 0 19.08 242. 0
4, 937. 519. 74 245. 0
5, 174. 0 20. 39248. 0
25 215.04, 437. 519. 28 225. 0 4, 687. 5 19. 52 235.0
26 218. 0 4, 654. 0 19. 91 228. 0 4, 914.0 20. 16 238. 0
27 (221.0 4,873. 5|20. 53₤231. 0| 5, 143. 520.79241.05, 413. 521. 04|251. 0
28224. 0 5,096. 021. 15234.0|| 5, 376. 0|21. 42244. 0 5, 656. 0 21. 67|254. 0
29 227.0 5,321, 521. 76237. 0 5, 611. 5|22, 04 247.0 5,901. 5|22. 31|257.0
30 230.0 5,550. 022, 36 240.0
6, 150. 0 22. 93 260. 0
31 233.0 5,781. 522. 96 243. 0
6, 401. 5 23. 55 263. 0
32 236.0 6,016. 023. 56 246. 0
6, 656. 0 24. 17 266. 0
33 239.0 6, 253. 5|24. 15₤249. 0
6, 913. 5|24. 78|269. 0
34 242. 0 6, 494. 0|24. 73|252. O]
7, 174. 0 25. 39|272. 0
35 245.0 6, 737. 5 25. 31 255. 0
36 248. 0 6, 984. 0 25. 89 258. 0
37 251.0 7, 233. 526. 46 261. 0
38 254.0 7, 486. 027. 02 264. 0
39 257.0 7,741, 527. 59|267. 0
40 260.0 8,000. 028. 15|270. 0
41 263. 0 8, 261. 528. 70 273. 0
42 266. 0 8, 526. 0 29. 26 276. 0|
43 269.0 8,793. 5|29. 80₤279.0
44 272.0 9,064, 030. 35 282.0
5, 850.0 22. 66 250.0
6, 091. 523.27 253. 0
6, 336. 023.88 256. 0
6, 583. 5|24. 48|259. 0
6, 834. 0|25. 07|262. 0|
7, 087. 525. 66 265. 07, 437. 5 25. 99275. 0
7, 344. 026. 25|268. 0| 7, 704. 0 26. 58|278. 0
7, 603. 526. 83 271. 0 7, 973. 5 27. 18281. 0
7, 866. 027. 41274. 0 8, 246. 0 27. 76 284. 0
8, 131. 527.98 277.0 8, 521. 5|28. 35|287. 0
8, 400. 028. 55 280. 0
8, 671, 5|29. 12283. 0
8, 946. 0|29. 68[286. 0|
9, 223. 5|30. 24|289. 0
9, 504. 030. 79 292. 0
2, 051.5 9.78
2, 256. 010. 58
2, 463. 511. 36
2, 674. 012. 13
2, 887. 512. 89
3, 104. 013. 63
3, 323. 514. 37
3, 546. 0 15. 10
3, 771. 5|15. 81
4, 000. 016.52
4, 231. 517. 22
4, 466. 017. 91
4, 703. 5|18. 60
4, 944. 019. 27
5, 187. 519.94
5, 434. 020. 60
5, 683. 5|21. 26
5, 936. 021.91
6, 191. 522, 55
6, 450. 023, 19
6, 711. 523.82
6, 976. 024. 44
7, 243. 525. 07
7, 514. 0 25. 68
7, 787. 526. 29
8, 064. 026. 90
8, 343. 5 27. 50
8, 626. 028. 10
8, 911. 528. 69
8, 800. 0 28. 93 290. 0 9, 200. 0|29. 28
9, 081. 529. 50|293. 0| 9, 491. 529. 86
9, 366. 0|30. 07|296. 0 9, 786. 030. 44
9, 653. 5|30. 64|299. 010, 083. 531. 02
9, 944. 031. 21 302. 010, 384. 031. 60
45 275.0 9, 337. 530. 89/285. 0 9, 787. 531. 35295. 010, 237. 531. 77305. 010, 687. 532. 17
46 278. 0 9, 614. 031. 43 288. 010, 074. 031. 89 298. 010, 534. 0 32. 33308. 010, 994. 032. 73
47 281. 0 9, 893. 531.97 291. 010, 363. 5|32. 44|301. 010, 833. 532. 88|311. 011, 303. 533. 30
48 284. 010, 176. 032. 50|294. 0|10, 656. 032. 98|304. 011, 136. 0|33. 43 314. 011, 616. 0|33. 86
49 287. 010, 461, 533. 04|297. 010, 951. 533. 52307. 011, 441. 533. 98317. 011, 931. 534. 42
50 290. 010, 750. 033. 56|300. 011, 250. 034. 06310. 011, 750. 0 34. 53|320. 012, 250. 0 34. 97
033.
53 320
0631
160
HYDRAULIC TABLES
Table 9.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 1½ to 1-Continued
Bottom width
180 feet
Bottom width
190 feet
T, and

Depth
Bottom width
200 feet
T
A
B
T
A
જ
7
T
A
→
11
12
13
14
15
20
21
22
24
25
26
27
28
29
30
FREE BRE22 8283* 22ERR A788* *8588 92** ****
213.0
2, 161.5
9.84
223.0| |2, 271.5
9.89
233.0
2, 381.5
216.0
2, 376.0
10.64
226.0
2,496. 0
10.70
236.0
2,616. 0
9.94
10.75
219.0
2, 593. 5
11.43
229.0
2,723.5
11.50
239.0
2,853. 5
11. 56
222.0
2,814. 0
12. 21
232.0
2,954. 0
12.28
242.0
3,094. 0
12.35
225.0
3,037.5
3,037. 5]
12. 98
235.0
3, 187. 5
13.06
245.0
3,337.5
13. 14
228.0 3, 264.0
13.73
238.0
238.0
3,424. 0|
13.82
248.0
3,584. 0
13.91
231.0
3,493.5
14.48
241.0
3,663.5
14.58
251.0
3,833. 5
14. 67
234.0
3,726.0 15. 21
244.0
3,906.0
15. 32
254.0
4,086. 0
15.42
237.0
3,961.5
15. 94
247.0
4, 151. 5
16.06
257.0
4, 341. 5
16. 17
240.0
4,200.0
16.66
250.0
4,400.0
16. 79
260.0
4,600.0
16.90
243.0
4, 441. 5
17.37
253.0
4, 651. 5
17.51
263.0
4,861. 5
17.63
246.0
4,686. 0
18.07
256.0
4, 906.0
18.22
266.0
5, 126. O
18.35
249.0
4,933. 5
18. 76
259.0
5, 163.5
18.92 269.0
5,393.5
19.06
252.0
5, 184.0
19.45
262.0
5, 424. 0
19.61
272.0
5, 664.0
19.77
255.0
5, 437.5
20. 13
265.0
5,687.5
20.30
275.0
5,937.5
20.46
258.0
5, 694.0
20.80
268.0
5,954. 0
20.98
278.0
6, 214. 0|
21. 15
261.0
5,953. 5
21.47
271.0
6, 223. 5
21.66
281.0
6,493.5
21.84
264.0
6, 216.0
22. 12
274.0
6,496. 0
22.33
284.0
6, 776.0
22.51
267.0 6, 481.5
22.78
277.0 6,771. 5
22.99
287.0
7,061. 5
23. 19
270.0
6, 750.0
23.42
280.0|| 7,050.0
23.64
290.0
7, 350. 0
23.85
31
273.0
7,021. 5
7, 021.5
24.07
283.0 7, 331.5
24. 29
293.0
7,641.5
24.51
32
276.0
7, 296.0
24.70
286.0
7, 616. 0
24.94
296.0
7,936. 0
25. 16
33
279.0
7,573.5
25.33 289.0
7,903.5
25.58
299.0 8, 233. 5
25.81
34
282. 0
7,854. 0
7,854.0
25.96
292.0
8, 194.0
26. 21
302.0
8, 534.0
26.45
35
285.0
8, 137. 5
8, 137.5
26.58
295.0
8, 487.5
26.84
305.0
8,837.5
27.09
36 288.0
8,424. 0
27.19
298.0
8,784. 0
27.47
308.0
9, 144. 0.
27.73
37
291.0 8, 713. 5
27.80
301.0
9,083.5
9,083.5
28. 09
311.0
9,453.5
28.35
38
294.0 9, 006.0
28.41
304.0
9,386.0
28.70
314.0
9,
9,766. 0
28.98
297.0
9,301. 5
29.01
307.0
9,691. 5|
29.31
317. 0
10, 081.5
29.60
40
300.0 9,600.0
29.61
310.0 10,000.0
29.92
320. 0
10, 400.0
30. 21
41
303.0 9,901.5
30. 20
313. 0
10, 311. 5
30.52
323. 0] 10, 721.5
30.82
42
306. 0| 10, 206.0
30.79
316.0 10, 626. 0
31. 12
326. 0
11, 046.0
31.43
43
309. 0 10, 513. 5
31.38
319.0 10, 943. 5
31.72
329.0 11, 373.5
32.03
44
312. 0 10, 824. 0
31.96
322. 0 11, 264. 0
32. 31
332. 0
11, 704. 0
32.63
45
315. 0 11, 137. 5
32.54
325.0 11, 587.5
32,90
335. 0
12,037. 5
33.23
46
318. 0 11, 454. 0
33. 12
328. 0
11, 914. 0
33.48
338.0 12, 374.0
33.82
48
321. 011, 773.5
324. 012, 096.0
33.69
331. 0
12, 243. 5
34.06
341.0 12, 713. 5
34.41
34.26
334.0 12, 576. 0
34.64
344. 0
13, 056. 0
35.00
49
327.0 12, 421. 5 34.83
337.0 12, 911. 5
35. 21
347.0 13, 401.5
35.58
50
36. 16
330. 0 12, 750.0 35.39
350. 0| 13, 750. 0
340. 0| 13, 250. 0
35.78
HYDRAULIC TABLES
161
Table 10.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1
T, and

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
Τ
A
T
T
A
Т
T
A
0.2
2.8
0.48 0.17
3.8
0.68 0.17
4.8
0.88 0.18
5.8
1.08 0.18
0.4 3.6
1.12 .30
4.6
1.52 .32 5.6
1.92 .33
6.6
2.32 .34
0.6 4.4
1.92 .41
5.4
0.8 5.2
2.88
.52 6.2
2.52 .44 6.4
3.68 .56
3.12.47
7.4
3.72
.48
7.2
4.48.59
8.2
5. 28
.62
1.0
6.0
4.00
.62
7.0
5.00
.67
8.0
6.00
.71
9.0
7.00
74
•
1.2 6.8
5. 28
1.4
7.6
1.6 8.4
1.8 9.2
.72 7.8
6.72 .81 8.6
8.32 .91 9.4
10.08 1.00 10.2
6.48 .77
8.12 .88
9.92 .98 10.4
11.88 1.08 11.2
8.8
7.68 .82 9.8
8.88
.86
9.6
9.52.93 10.6
10.92 .97
11.52 1.03 11.4
13.68 1.14 12.2
13.12 1.08
15.48 1.19
2.0 10.0
2.2 10.8
12.00 1.10] 11.0
14.08 1.19 11.8
2.4 11.6
16. 32 1.28 12.6
2.6
12.4
2.8 13.2
18.72 1.37 13.4
14.00 1.17 12.0
16.28 1.27 12.8
18.72 1.36 13.6
21.32 1.46 14.4|
16.00 1.24 13.0
18.48 1.34 13.8
21.12 1.43 14.6
18.00 1.29
20.68 1.39
23.52 1.49
23.92 1.53 15.4
26.52 1.59
21.28 1.47 14.2
24.08 1.55 15.2
26.88 1.63 16.2
29.68 1,69
3.0 14.0
24.00 1.56 15.0
27.00 1.64 16.0
3.2 14.8
26.88 1.65 15.8
3.4 15.6
29.92 1.74 16.6
3.6 16.4
33.12 1.83| 17.4
3.8
17.2
36.48 1.92|| 18.2
30.08 1.74 16.8
33.32 1.83 17.6
36.72 1.92 18.4|
40.28 2.01 19.2
30.00 1.72 17.0
33.28 1.82 17.8
36.72 1.91 18.6
40.32 2.01 19.4
44.08 2.10 20.2
33.00 1.79
36.48 1.89
40.12 1.99
43.92 2.08
47.88 2.18
4.0 18.0
40.00 2.01 19.0
44.00 2.11| 20.0
4.2 18.8
43.68 2.10 19.8
47.88 2.20 20.8
48.00 2.19 21.0
52.08 2.29 21.8
52.00 2.27
56.28 2.37
4.4 19.6
47.52 2.19 20.6
51.92 2.29] 21.6
56.32 2.38 22.6
60.72 2.46
4.6 20.4
51.52 2.28 21.4
56.12 2.38 22.4
4.8 21.2
55.68 2.37 22.2
60.48 2.47 23.2
60.72 2.47 23.4
65.28 2.56 24.2
65.32 2.55
70.08 2.65
5.0 22.0
60.00 2.46 23.0
65.00 2.56 24.0
5.2 22.8
64.48 2.55 23.8
69.68 2.65 24.8
5.4 23.6
69.12 2.64 24.6
74.52 2.74 25.6
5.6 24.4
73.92 2.73] 25.4
79.52 2.84 26.4
5.8
25.2
78.88 2.82 26.2|
84.68 2.93 27.2
70.00 2.66 25.0
74.88 2.75 25.8
79.92 2.84 26.6
85.12 2.93 27.4
90.48 3.02. 28. 2
75.00 2.74
80.08 2.83
85.32 2.93
90.72 3.02
96.28 3.11
6.0 26.0
6.2 26.8
6.4 27.6
6.6 28.4
84.00 2.91 27.0
89.28 3.00 27.8
94.72 3.09 28.6
100.32 3.18 29.4
6.8 29.2
106.08 3.27 30.2
90.00 3.02 28.0
95.48 3.11 28.8
101.12 3.20 29.6
106.92 3.29 30.4
112.88 3.38 31.2
96.00 3.11 29.0
101.68 3.20 29.8
107.52 3.30| 30.6)
113.52 3.39 31.4
119.68 3.48 32.2
102.00 3.20
107.88 3.30
113.92 3.39
120.12 3.48
126.48 3.57
7.0 30.0
7.5 32.0
112.00 3.36 31.0
127.50 3.59 33.0
8.0 34.0
8.5 36.0
9.0 38.0
144.00 3.81 35.0
161.50 4.04 37.0
180.00 4.26 39.0
119.00 3.47 32.0
135.00 3.69 34.0
152.00 3.92 36.0
170.00 4.15 38.0
189.00 4.37 40.0
126.00 3.57 33.0
142.50 3.80 35.0
160.00 4.02| 37.0|
178.50 4.25 39.0
198.00 4.47 41.0
133.00 3.66
150.00 3.89
168.00 4.12
187.00 4.35
207.00 4.57
9.5 40.0
10.0 42.0
199.50 4.48 41.0
220.00 4.71 43.0
209.00 4.59 42.0
230.00 4.82 44.0
218.50 4.70 43.0
240.00 4.93] 45.0
228.00 4.80
250.00 5.03
10.5 44.0
273.00 5.25
241.50 4.93 45.0
262.50 5.15 47.0
252.00 5.04 46.0
162
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
Α
T
A
T
T
A
Τ
A
0.2
6.8
1.28 0.19
7.8
1.48 0.19
8.8
1.68 0.19
9.8
1.88 0.19
0.4
7.6
2.72 .35
8.6
3. 12.35
9.6
3.52 .36 10.6
3.92 .36
0.6 8.4
0.8
9.2
4.32 .50 9.4
6.08.63 10. 2
4.92
.51
6.88
10.4
.65 11. 2|
5.52 .52 11.4
6.12.52
7.68
.66 12. 2
8.48 .67
1.0 10.0
8.00 .76 11.0
1.2 10.8
10.08 .89 11.8
1.4 11.6
12. 32 1.00 12.6
1.6 12.4
1.8 13.2
14.72 1.12 13. 4
17.28 1.23 14. 2
9.00
78 12.0
11.28 .91 12.8
13.72 1.03 13.6|
16.32 1.15 14.4
19.08 1.27 15. 2
10.00 .80 13. 0
12.48 .93 13.8
15.12 1.06 14.6
17.92 1.18 15.4
20.88 1.30 16. 2
11.00 .82
13.68 .95
16.52 1.08
19.52 1. 21
22.68 1.33
2.0
14.0
20.00 1.34| 15.0
22.00 1.38| 16.0|
2.2
14.8
22.88 1.44 15.8
25.08 1.49 16.8
24.00 1.42 17.0
27.28 1.53 17.8
26.00 1.45
29.48 1.56
2.4
15.6
25.92 1.55 16.6
28.32 1.60 17.6
30.72 1.64 18.6
33.12 1.68
2.6
16. 4
29.12 1.65 17.4
31.72 1.70 18.4
34, 32 1.75 19.4
36.92 1.79
2.8
17.2
32. 48 1.75 18. 2
35.28 1.81 19.2
38.08 1.86| 20.2]
40.88 1.90
3.0
18.0
36.00 1.85 19.0
3.2 18.8
39.68 1.95| 19.8
3.4 19.6
3.6
20.4
3.8
21. 2
43.52 2.05 20.6
47.52 2.15] 21.4|
51.68 2.25 22.2
39.00 1.91 20.0
42.88 2.01 20.8
46.92 2.11 21.6
51. 12 2. 21
55.48 2.31
42.00 1.96 21.0
46.08 2.07 21.8
50.32 2.17| 22.6
54.72 2.27| 23.4|
59.28 2.37 24.2
4.0 22.0
56.00 2.34 23.0
4.2 22.8
60.48 2.44 23.8
4.4 23.6
65.12 2.54 24. 6
4.6
24. 4
69.92 2.63 25.4
4.8
25. 2
74.88 2.73 26.2
60.00 2.41 24.0
64.68 2.51 24.8
69.52 2.61 25.6
74.52 2.70 26.4
79.68 2.80 27.2
5.0
5.2
5.4
5.6
5.8
0240 00
26. 0
80.00 2.82 27.0
26.8
85.28 2.92] 27.8
27.6
90.72 3.01 28.6
85.00 2.90| 28.0
90.48 2.99| 28.8
96.12 3.09 29.6
28.4
96.32 3.10 29. 4
101.92 3.18 30.4
29.2
102.08 3.20 30.2
107.88 3.28 31. 2
6.0
30.0
108.00 3.29 31.0
114.00 3.37 32.0
6.2 30.8
114.08 3.38] 31.8
6.4 31.6
120.32 3.48] 32.6
6.6 32.4
126.72 3.57 33. 4
6.8 33.2
7.0 | 34.0
133.28 3.66 34.2
120.28 3.46 32.8
126.72 3.56 33.6
133. 32 3.65 34. 4
140.08 3.74 35.2
22.4
23. 2
64.00 2.47| 25.0|
68.88 2.57 25.8
73.92 2.67 26. 6
79.12 2.77 27.4
84.48 2.87 28.2
90.00 2.96 29.0
95.68 3.06 29.8
101.52 3.16] 30.6
107.52 3. 25| 31. 4
113.68 3.35 32.2
120.00 3.45| 33.0
126.48 3.54 33.8
133.12 3.64 34.6
139.92 3.73 35.4
146.88 3.82 36.2
68.00 2.53
73.08 2.
78.32 2.
83.72 2.83
89.28 2.93
95.00 3.03
100.88 3.13
106.92 3. 23
113. 12 3. 32
119. 48 3.42
126.00 3.52
132. 68 3.61
139.52 3.71
146.52 3.80
153.68 3.90
45.00 2.01
49.28 2.11
53.72 2.22
58.32 2.32
63.08 2.43
7.5 36.0
8.0 38.0
8.5 40.0
140.00 3.75 35.0
157.50 3.98 37.0
176.00 4.21 39.0
147.00 3.84 36.0
165.00 4.07 38.0
184.00 4.30 40.0
154.00 3.92 37.0
172.50 4.15 39.0
161.00 3.99
180.00 4. 23
192.00 4.39 41.0
192.00 4.39 41.0
200.00 4.47
9.0
42.0
195.50 4.44] 41.0
216.00 4.67 43.0
204.00 4.53 42.0
212.50 4.62 43. 0
221.00 4.70
225.00 4.76 44.0
234.00 4.85 45.0
243.00 4.93
9.5 44.0
10.0
46.0
237.50 4.90 45.0
260.00 5.13] 47.0]
247.00 4.99 46.0
270.00 5.22 48.0
256.50 5.08 47.0
280.00 5.31 49.0
266.00 5.17
290.00 5.40
10,5 48.0
315.00 5.63
48.0
304.50 5.54 51.0
283.50 5.35 49.0
294.00 5.45 50.0
HYDRAULIC TABLES
163
Table 10.-Area in square feet, A, top
feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
T
A
↑ T
A
T T
A
0.2
10.8
0.4
11.6
2.08 0.19 12.8
4.32.37 13.6
0.6
12. 4
6.72 .53 14. 4
0.8
13.2
9.28
.68 15.2
2.48 0.19 14.8
5. 12 .37 15.6
7.92
10.88
2.88 0.19 16. 8
5.92.37 17.6
3.28 0.19
6.72 .38
.54 16.4
70 17.2
9.12.55 18. 4
10.32 .55
12. 48
.71 19.2
14.08
.72
1.0
14.0
12.00
83 16.0
•
14.00 .85 18.0
1.2
14.8
14.88
.97 16.8
17.28 1.00 18.8
1.4
15. 6
1.6
16. 4
1.8
17.2
17.92 1.10 17.6
21.12 1.23 18. 4
24. 48 1.36 19. 2
24. 32
20.72 1.13] 19.6
1.27 20.4
28.08 1.40| 21.2
16.00 .87 20.0
19.68 1.02] 20.8
23. 52 1.16] 21. 6
27.52 1.30| 22.4
31.68 1.44 23. 2
18.00
.88
22.08 1.03
26. 32 1.18
30.72 1.33
35.28 1.47
si si si si ci eð eð eð eð eð
1246 00
18.0
18.8
28.00 1.48 20.0
31.68 1.60 20.8
19.6
35.52 1.71 21.6
1246∞
20.4
2.8 21. 2
3.0
22.0
3.2 | 22.8
23.6
39.52 1.83 22.4
43.68 1.94 23. 2
32.00 1.53] 22.0
36.08 1.65 22.8
40.32 1.77 23.6
44.72 1.89 24.4
49.28 2.01| 25. 2
36.00 1.57 24. 0
40.48 1.70 24.8
45. 12 1.82 25.6
49.92 1.95 26. 4
54.88 2.07 27.2
40.00 1.60
44.88 1.74
49.92 1.87
55.12 2.00
60.48 2.12
48.00 2.05 24.0
52.48 2.16 24.8
57.12 2.27 25.6
24. 4
61.92 2.37 26.4
25.2
66.88 2.48 27.2
54.00 2.12 26.0
58.88 2.24 26.8
63.92 2.35| 27.6|
69.12 2.46 28.4
74.48 2.57 29.2
60.00 2.19| 28.0
65.28 2.31| 28.8
70.72 2.42 29.6
76.32 2.54| 30.4|
82.08 2.65 31. 2
66.00 2.24
71.68 2.36
77.52 2.48
83.52 2.60
89.68 2.72
4.0 26.0
72.00 2.58] 28.0
4.2 26.8
77.28 2.68 28.8
4.4
27.6
82.72 2.79 29.6
4. 6
28.4
88.32 2.89 30.4
4.8
29.2
94.08 2.99 31.2
80.00 2.68 30.0
85.68 2.78 30.8
91.52 2.89 31.6
97.52 2.99 32.4
103.68 3.10 33.2
5.0 30.0
5.2 30.8
5.4 31.6
5.6 32.4
5.8 33.2
6.0 34.0
6.2 34.8
6.4 35.6
100.00 3.09 32.0
106.08 3.19 32.8
112. 32 3.29 33.6
118.72 3.39 34.4
125.28 3.49 35.2|
6.6
36.4
6.8 37.2
132.00 3.58 36.0
138.88 3.68 36.8
145.92 3.78 37.6
153.12 3.87 38.4
160.48 3.97 39. 2
110.00 3.20] 34.0
116. 48 3.30 34.8
123.12 3.41| 35. 6|
129.92 3.51| 36. 4|
136.88 3.61 37.2
144.00 3.71] 38.0
144.00 3.71] 38.0
151.28 3.81 38.8
158.72 3.91 39.6
166.32 4.01| 40.4
174.08 4.10 41.2
88.00 2.76 32.0
94.08 2.87 32.8
100.32 2.98 33.6
106.72 3.09 34.4
113.28 3.19 35.2
120.00 3.30| 36.0
126.88 3.41 36.8
133.92 3.51 37.6
141.12 3.61 38.4
148. 48 3.72 39. 2
148.48 3.72 39.2
96.00 2.83
102. 48 2.95
109. 12] 3.06
115.92 3. 17
122.88 3.28
130.00| 3.39
137.28 3.50
144.72 3.60
152. 32| 3.71
160.08 3.82
156.00 3.82 40.0 168.00 3.92
163.68 3.92 40.8 176.08 4.03
171.52 4.02 41.6 184. 32 4. 13
179.52 4.13| 42.4|| 192.72 4.23
187.68 4.23 43. 2 201.28 4.34
7.0
38.0
7.5 40.0
168.00 4.07 40.0
187.50 4.31 42. 0
8.0 42.0
208.00 4.54 44.0
182.00 4.20 42.0
202.50 4.45 44.0
224.00 4.69 46.0
8.5 44.0
9.0 46.0
229.50 4.78| 46.0
252.00 5.02 48.0
246.50 4.93 48. 0
270.00 5.17 50.0
196.00 4.33 44.0
217.50 4.57 46.0
240.00 4.82 48.0
263.50 5.07 50.0
288.00 5.31 52.0
210.00 4.44
232.50 4.69
256.00 4,94
280.50 5.19
306.00 5.44
9.5 48.0
10.0 50.0
275.50 5.25 50.0
300.00 5.48 52.0
5.48 52.0
294. 50 5. 41 52.0
320.00 5.64 54.0
313.50 5.55 54.0
332.50 5.69
340.00 5.79 56.0
360.00 5.93
10. 5 52.0
388.50 6.17
325.50 5.71 54.0
367.50 6.03 58.
346.50 5.88 56.0
이
​164
HYDRAULIC TABLES
Table 10.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued
T, and

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T
T
A
T T
A
T T
A
T
0.2
18.8
0.4
19.6
3.68 0.19 20.8
7.52 .38 21.6
0.6 20.4
0.8 21.2
11.52
15.68
.56 22.4
.73 23.2
4.08 0.20 22.8
8.32 .38 23.6
12.72 .56| 24.4
17.28 .73 25.2
4.48 0.20 24.8
9.12 .38 25.6
13.92 .56 26.4
18.88 .74 27.2
4.88 0.20
9.92 .38
15.12.57
20.48 .74
1.0 22.0
20.00
.89 24.0
1.2 22.8
24.48 1.05] 24.8
1.4 23.6
29.12 1.20 25.6
1.6 24.4
33.92 1.35 26.4|
1,8
25.2
38.88 1.49 27.2
22.00 .90 26.0
26.88 1.06 26.8
31.92 1.22 27.6
37.12 1.37 28.4
42.48 1.51 29.2
24.00 .91 28.0
29.28 1.07 28.8
34.72 1.23| 29.6
40.32 1.38 30.4|
46.08 1.53 31.2
26.00 .91
31.68 1.08
37.52 1.24
43.52 1.40
49.68 1.55
2.0 26.0
44.00 1.63 28.0
48.00 1.66 30.0
2.2
26.8
49.28 1.77 28.8
53.68 1.80 30.8
2.4
27.6
54.72 1.90 29.6
59.52 1.94 31.6
52.00 1.68 32.0
58.08 1.82 32.8
64.32 1.96 33.6
2.6
28.4
60.32 2.04 30.4
65.52 2.07 32.4
2.8
29.2
66.08 2.16 31.2
71.68 2.20 33.2
70.72 2.10 34.4
77.28 2.24 35.2
56.00 1.70
62.48 1.85
69.12 1.99
75.92 2.13
82.88 2.27
3.0 30.0
72.00 2.29 32.0
3.2 30.8]
78.08 2.42 32.8
3,4 31.6
3.6 32.4
3.8 33.2
4.0 34.0
4.2 34.8
84.32 2.54 33.6
90.72 2.66 34.4
97.28 2.78 35.2
78.00 2.33 34.0
84.48 2.46 34.8
91.12 2.59 35.6
97.92 2.71| 36.4|
104.88 2.84 37.2
84.00 2.37 36.0
90.88 2.50 36.8
97.92 2.63 37.6
105.12 2.76 38.4
112.48 2.88 39.2
4.4 35.6
4.6 36.4
4.8 37.2
104.00 2.90 36.0
104.00 2.90 36.0
110.88 3.01 36.8
117.92 3.13 37.6
125. 12 3.24 38.4
132.48 3.36 39.2
112.00 2.96 38.0
119.28 3.08] 38.8
126.72 3.19 39.6
134.32 3.31 40.4
142.08 3.43 41. 2
120.00 3.01 40.0
127.68 3.13 40.8
135.52 3.25 41.6
143. 52 3.37 42.4
151.68 3.49 43.2
90.00 2.41
97.28 2.54
104.72 2.67
112.32 2.80
120.08 2.93
128.00 3.06
136.08 3.18 .
144.32 3.30.
152,72 3.43
161.28 3.55
5.0 38.0
5.2 38.8
5.4 39.6
5.6
40.4
5.8
41. 2
140.00 3.47 40.0
147.68 3.58 40.8
155.52 3.69 41.6|
163.52 3.80 42.4
171, 68 3.91 43.2
150.00 3.54 42.0
158.08 3.65 42.8
166.32 3.77 43.6
174. 72 3.88 44.4
183.28 3.99 45.2
160.00 3.61| 44.0
168.48 3.72 44.8
177.12 3.84 45.6
185.92 3.95 46.4
194.88 4.07 47.2
170.00 3.67
178.88 3.79
187.92 3.90
197.12 4.02
206.48 4.13
6.0
42.0
180.00 4.01 44.0
6.2 42.8
188.48 4.12 44.8
6.4 43.6
6.6
44.4
6.8 45.2
197.12 4.23 45.6
205.92 4.33 46.4
214.88 4.44 47. 2
192.00 4.10 46.0
200.88 4.21 46.8
209.92 4.32 47.6
219. 12 4.43 48.4
228.48 4.53 49.2
204.00 4.18 48.0
213.28 4.29] 48.8
222.72 4.40 49.6
232.32 4.51 50.4
242.08 4.62| 51.2
216.00 4.25
225.68 4.36
235.52 4.48
245.52 4.59
255.68 4.70
7.0 46.0 224.00 4.54 48.0
7.5 48.0 247.50 4.80 50.0
8.0 50.0 272.00 5.06 52.0
8.5 52.0 297.50 5.31 54.0
9.0 54.0 324.00 5.56 56.0
9.5 56.0 351.50 5.81 58.0
10.0 58.0 380.00 6.06 60.0
238.00 4.64 50.0
252.00 4.73 52.0
266.00 4.81
262.50 4.90 52.0
277.50 5.00] 54.0
292.50 5.08
288.00 5. 16 54.0
288.00 5.16 54.0
304.00 5.26 56.0
320.00 5.35
314.50 5.42 56.0
342.00 5.68 58.0
331.50 5.52 58.0
348.50 5.62
360.00 5.78 60.0
378.00 5.88
370.50 5.93] 60.0
400.00 6.18 62.0
389.50 6.04 62.0
408.50 6.14
420.00 6.29 64.0
440.00 6.40
10.5 60.0 409.50 6.30 62.0
472.50 6.66
430.50 6.43 64.0
451.50 6.55 66.0
HYDRAULIC TABLES
165
T, and
Table 10.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
A
↑
T
A
r
T
A
T
0.2
26.8
5.28 0.20 28.8
0.4
27.6
10.72
.39| 29.6
0.6
28. 4
16.32
.57】 30.4|
0.8
29.2
22.08
75 31.2
25. 28
5.68 0.20 30.8
11.52.39 31.6
17.52 57 32. 4
23.68.75 33.2
•
6.08 0.20 32.8]
12.32 .39 33.6
6.48 0.20
13.12.39
18.72.57 34.4
19.92 .57
.75 35.2
26.88 .76
1.0
30.0
28.00
.92| 32.0
•
1.2 30.8
1.4 31.6
34.08 1.09 32.8
40.32 1.25 33.6
1.6
32.4
46.72 1.41 34. 4
1.8
33.2
53.28 1.56| 35. 2|
30.00 92 34.0
36.48 1.09 34.8
43.12 1.26 35.6
49.92 1.42 36.4
56.88 1.58 37.2
32.00
38.88 1. 10
45.92 1.27 37.6
53.12 1.43 38.4
60.48 1.59 39.2
.93 36.0
36.8
34.00
.93
41.28 1.10
48.72 1.27
56.32 1.44
64.08 1.60
2.0
34.0
60.00 1.72 36.0
2.2
34.8
66.88 1.87 36.8
2.4
35.6
73.92 2.01 37.6
2.6 36.4
2.8 37.2
81.12 2.16 38.4
88.48 2.30) 39. 2|
64.00 1,73 38.0
71. 28 1.88 38.8
78.72 2.03 39.6
86.32 2.18 40.4
94.08 2.32 41.2
68.00 1.75 40.0
75.68 1.90| 40.8]
83.52 2.05 41.6
91.52 2.20 42.4
99.68 2.34 43.2
72.00 1.76
80.08 1.91
88.32 2.07
96.72 2.22
105, 28] 2.36
3.0 38.0
96.00 2.44, 40.0
3.2 38.8
103.68 2.57 40.8
3.4 39.6
3.6 40.4
3.8 41.2
111.52 2.71 41. 6
119.52 2.84 42. 4
127.68 2.97 43.2
102.00 2.46| 42.0
110.08 2.60 42.8
118. 32 2.74 43.6
126.72 2.87 44. 4
135.28 3.01| 45.2
108.00 2.49 44.0
116.48 2.63| 44.8|
125.12 2.77 45.6
133.92 2.91 46.4
114.00 2.51
122.88 2.65
131.92 2.79
141.12 2.93
142.88 3.04 47.2
150.48 3.07
4.0
42.0
4.2 42.8
4.4 43.6
4.6 44.4
4.8
45.2
136.00 3.10 44.0
144. 48 3. 23 44.8
153.12 3.35 45.6
161.92 3.48 46.4
170.88 3.60 47.2
5.0
5.2
5.4
5.6
5.8
0246 00
46.0
180.00 3.72 48.0
46.8
189.28 3.84 48.8
47.6
198. 72 3.96 49.6
48.4
190.00 3.77 50.0
199.68 3.90 50.8
209.52 4.02 51. 6
219.52 4.14 52.4
229.68 4. 26 53. 2
4.26
144.00 3.14 46. 0
152.88 3.27 46.8
161.92 3.40] 47.6
171.12 3.52 48.4
180.48 3.65 49.2
152.00 3.17 48.0
161.28 3.31| 48. 8|
170.72 3.44 49.6
180.323.57 50.4|
190.08 3.69 51.2
190.08 3.69 51.2
200.00 3.82 52. 0
200.00 3.82 52.0
210.08 3.94 52.8
220.32 4.07 53.6
179.52 3.47
189. 52 3.60
199.68 3.73
210.00| 3.86
220.48 3.99
231.12 4.12
160.00 3.21
169.68 3.34
6.0
50.0
6.2
50.8
6.4 51.6
6.6
52.4
6.8 53.2
7.0 54.0
7.5 56.0
8.0 58.0
8.5 60.0
9.0 62.0
9.5 64.0
10.0 66.0
228.00 4.32 52.0
238.08 4.43 52, 8
248.32 4.55 53.6
258.72 4.66 54.4
269. 28 4.77 55.2
280.00 4.89 56.0
307.50 5.16 58.0
336.00 5.44 60.0
365, 50 5.71 62.0
396.00 5.98 64.0
294.00 4.96 58.0
322.50 5.24 60.0
352.00 5.52 62.0
382.50 5.79 64.0
414.00 6.07 66. 0
208.32 4.08 50.4
49.2 218.08 4.20 51.2
240.00 4.38 54.0
250.48 4.49 54.8
261. 12 4.61 55.6
271.92 4.73 56.4
282.88 4.84 57.2
252.00 4.43 56.0
262.88 4. 55 56.8
273.92 4.67 57.6
285. 12 4.79 58.4
285.12 4.79| 58.4
296.48 4.91 59.2
308.00 5.02 60.0
308.00 5.02 60.0
337.50 5.31 62.0
275. 28 4.61
286. 72 4.73
298. 32 4.85
310.08] 4.97
322.00 5.09
352.50 5.38
230.72 4.19 54.4
241.92 4.24
241. 28 4.31 55.2
252.88 4. 36
264.00 4.49
368.00 5.59 64.0
384.00 5.67
399.50 5.87 66.0
432.00 6.15 68.0
416.50 5.95
450.00 6.23
427.50 6.24] 66.0
460.00 6.50 68.0
446.50 6.33 68. 0
480.00 6.60 70.0
465.50 6.42 70.0
500.00 6.69 72.0
484.50 6.50
520.00 6.78
10.5 68.0
556.50 7.05
493.50 6.76 70.0
535.50 6.96 74.0.
514.50 6.86 72, 0
166
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
Τ
T
A
Τ T
A
→
T
A
T
0.2
35.8
0.4 36.6
7.08 0.20 40.8
14.32 .39 41.6
0.6
37.4
21.72
.58 42.4
24.72
0.8 38.2
29.28
.76 43.2
33. 28
1.0 39.0
37.00
1.2 39.8
1.4 40.6
1,6 41.4
.94 44.0
44.88 1. 11 44.8
52.92 1.28 45.6
61. 12 1.45 46.4
1.8 42.2
69.48 1.61 47.2
8.08 0.20 45.8
16.32 .39 46.6
.58| 47.4|
76 48. 2
42.00 .94 49.0
50.88 1. 12 49.8
59.92 1.30 50.6
69.12 1.47 51.4|
78.48 1.63 52.2
9.08 0.20 50.8
18.32 .39 51.6
27.72 .58] 52.4]
37.28.77 53.2|
10.08 0.20
20.32 .39
30.72.58
41.28 .77
47.00 .95 54.0
56.88 1.13 54.8
66.92 1.31| 55.6
77.12 1.48 56.4
87.48 1.65 57.2
52.00 .95
62.88 1.14
73.92 1.31
85.12 1.49
96.48 1.66
2.0 43.0
78.00 1.77 48.0|
2.2
43.8
2.4 44. 6
2.6 45. 4
2.8 46.2
3.0 47.0
3.2 47.8
3.4
48.6
3.6
49.4
3.8
50.2
123.00 2.54 52.0
132.48 2.69 52.8
142.12 2.83 53.6
151.92| 2.97| 54.4|
161.88 3. 11 55. 2
4.0
51.0
4.2
51.8
4.4
52.6
4. 6
53. 4
4.8
54. 2
172.00 3.25 56.0
182. 28 3.39 56.8
192.72 3.52 57.6
203.32 3.66 58.4
214.08 3.79 59. 2
5.0
55. 0
5.2
55.8
5.4
56.6
5.6
57.4
5.8
58. 2
225.00 3.92 60.0
236. 08 4.05 60.8
247.32 4.18 61.6
258.72 4.31 62.4
270. 28 4.44 63. 2
6.0
59.0
6.2 59.8
6.4
60.6
6.6
61. 4
6.8
62.2
86.68 1.93 48.8
95.52 2.09 49.6
104.52 2.24 50.4
113.68 2.39 51.2
282.00 4.56 64. 0.
293.88 4.69| 64.8
305.92 4.81] 65.6|
318. 12 4.93] 66.4|
330.48 5.05 67.2
88.00 1.80 53.0
97.68 1.96 53.8
107.52| 2.12| 54. 6}
117, 52 2.28 55. 4|
127.68 2.43| 56. 2|
138.00 2. 58 57.0
148.48 2.73 57.8
159.12 2.88 58.6
169.92 3.03 59.4
180.88 3. 17 60. 2
192.00 3.32 61.0
203. 28 3.46 61.8
214.72 3.60 62.6
226. 32 3. 74 63.4
238.08 3.87 64. 2
250.00 4.01 65. 0
262.08 4.14 65.8
274.32 4.28 66.6
286. 72 4.41] 67. 4
299. 28 4.54| 68. 2|
312.00 4.67 69.0
324.88 4.801 69. 8
337.92 4.92 70.6
351. 12 5.05 71.4
364.48 5. 18 72. 2
98.00 1.82 58.0
108.68 1.98 58.8
119.52 2. 14 59.6
130.52 2.30 60.4
141.68 2.46 61. 2
212.00 3.37| 66.0
224. 28 3.52 66.8
236.72 3.66 67.6
249.32 3.80 68.4
262.08 3.94 69.2
342.00 4.76 74.0
355.88 4.89 74.8
369.92 5.02 75.6
384. 12 5. 15 76.4
398.48 5.28 77.2
232.00 3.42
245. 28 3.57
258.72 3.71
272.32 3.86
108.00 1.83
119.68 2.00
131.52 2. 17
143.52 2.33
155.68 2.49
153.00 2.62 62.0
164.48 2.77 62.8
176. 12 2.93 63.6
187.92 3.08 64. 4
199.88 3.22 65. 2
168.00 2.65
180.48 2.81
193.12 2.96
205.92 3.12
218.88 3.27
286.08 4.00
275.00 4.08| 70.0
288.08 4.22 70.8
301.32 4.36 71.6
300.00] 4.15
314. 08 4.29
328.32 4.43
314.72 4.49 72.4
328. 28 4.63 73.2
342.72 4.57
357.28 4.70
372.00 4.84
386.88 4.98
401.92 5. 11
417. 12 5. 25
432.48 5.38
7.0
63.0
7.5
65. 0
8.0
67.0
8.5 69.0
9.0 71.0
343.00 5. 17 68. 0
375.00 5.47 70.0
408.00 5.76 72.0
442.00 6.05 74.0
477.00 6.34 76.0
378.00 5.30] 73.0
412.50 5. 61 75.0
448.00 5.91 77.0
79.0
79.0
484.50 6. 21
484.50 6. 21
522.00] 6.50 81. 0
413.00 5.41 78.0
450.00 5.73] 80.0
488.00 6.04 82.0
527.00 6.35 84. 0
567.00 6.65] 86.0|
448.00 5.51
487.50 5.84
528.00 6.16
569.50 6.47
612.00 6.78
9.5 73.0
10.0 75.0
513.00 6.62 78.0
550.00 6.90 80.0
560. 50| 6.80) 83.0
600.00 7.081 85.0
608.00 6.95 88.0
650.00 7.24| 90.0
655.50 7.09
700.00 7.39
10.5 77.0
745.50 7.69
588.00 7.17 82.0
693.00 7.54 92.0
640.50 7.37 87.0
HYDRAULIC TABLES
167
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
Τ
A
T T
A
T
A
T T
A
T
0.2 60.8
0.4 61.6
0.6 62.4
0.8 63.2
1.0
64.0
1.2 | 64.8)
1.4
65.6
1.6 66.4
1.8 67.2
2.0 68.0
2.2 68.8
2.4 69.6
2.6 70.4
2.8 71.2
62.00 .96 74.0
74.88 1.15 74.8
87.92 1.33 75.6
101. 12 1.51 76. 4
114.48 1.68 77.2
128.00 1.86 78.0
141.68 2.03 78.8
155. 52 2. 20
169.52 2.37 80.4
183.68 2.53 81.2
12.08 0.20 70.8
24. 32 .39 71.6
36.72 .59 72.4
49.28 .78 73.2
14.08 0.20 80.8
28.32 39 81.6
42.72.59 82.4|
.78 83. 2
72.00 .97| 84.0
86.88 1.15 84.8
101.92 1.34 85.6
117. 12 1. 52 86.4
132.48 1.70 87. 2
57.28
16.08 0.20】 90.8
32. 32 .40 91.6
48.72.59 92.4
65.28.78 93.2
18.08 0.20
36.32 .40
54.72.59
73.28.78
82.00 .97| 94.0
98.88 1.16 94.8
115.92 1.34 95.6
133.12 1. 53 96.4
150.48 1.71 97.2
92.00 .97
110.88 1.16
129.92 1.35
149.12 1.53
168.48 1.72
79.6
148.00] 1.87 88.0
163.68 2.05 88.8
179.52 2.22 89.6
195.52 2.40] 90.4|
211.68 2.57 91.2
168.00 1.89 98.0
185.68 2.07 98.8
203.52 2.24 99.6
221.52 2.42 100. 4
239.68 2.59 101. 2
188.00 1.90
207,68 2.08
227.52 2.26
247.52 2.44
267.68 2.61
3.0 72.0
3.2
3.4 73.6
3.6 74.4
3.8 75.2
72.8
198.00 2.70 82.0
212.48 2.86 82.8
227.12 3.02 83.6
241.92] 3.18 84.4]
256.88 3.34 85.2
228.00 2.73 92.0
244.48 2.90] 92.8
261.12 3.06 93.6
258.00 2.76|102.0
276.48 2.93 102.8
295.12 3.10 103.6
288,00 2.78
308.48 2.96
329.12 3.13
277.92 3.23 94.4
294.88 3.39 95.2
313.92 3.27 104. 4
332.88 3.43 105. 2
349.92 3.30
370.88 3.47
4.0 76.0
4.2 76.8
272.00 3.49 86.0
287.28 3.65 86.8
312.00 3.55 96.0
329.28 3.71 96.8
4.4 77.6 302.72 3.80 87.6
346.72 3.87 97.6
4.6 78.4
318.32 3.95 88. 4
4.8 79.2
334.08 4.10 89.2
364.32 4.02 98.4|
382.08 4. 18 99. 2
5.0 80.0
5.2 80.8
5.4 81.6
5.6 82.4
5.8 83.2
6.0 84.0
432.00 4.98 94.0
6.2 84.8 448.88 5. 12 94.8
6.4 85.6 465.92 5.26 95.6
6.6
86.4 483.12 5.40 96. 4|
6.8 87.2 500.48 5.54 97.2
350.00 4.25 90:0
366.08 4.40 90.8
382.32 4.54 91.6
398.72 4.69 92.4
415. 28 4.83 93.2
400.00 4. 33 100.0
418. 08.4.48 100.8
436. 32 4.63 101.6
454.72 4.78 102.4
473. 28 4.93 103. 2
492.00 5.08 104. 0
510.88 5.23 104.8
529.92 5.37 105. 6
549. 12 5. 52106.4
568.48 5.66 107.2
7.0 88.0 518.00 5.67 98.0
7.5 90.0 562.50 6.01 100.0
8.0 92.0 608.00 6.35102.0
8.5 94.0 654.50 6.68 104. 0
9.0 96.0 702.00 7.00₤106. 0
588.00 5.80 108. 0
637.50 6. 16110. 0
688.00 6. 50|112. 0
739.50 6.85 114.0
792.00 7. 18116. 0
9.5 98.0 750.50 7.32|108.0
10.0 100.0 800.00 7.64 110.0
845. 50| 7. 52 118. 0
900.00 7.85 120. 01,
352.00 3.60 106. 0
371. 28 3. 76106.8
390.72 3.92 107.6
410.32 4.08108. 4
430.08 4.24 109.2
450.00 4.40 110.0
470.08 4.55110.8
490. 32 4.71111. 6
510.72 4.86 112. 4
531.28 5.01 113. 2
392.00 3.63
413. 28 3.80
434.72 3.96
456. 32 4. 13
478.08 4.29
500.00) 4.45
522.08 4.61
544. 32 4.77
566.72 4.93
589.28 5.08
552.00 5.17|114.0_612.00 5.24
634.88 5.39
657.92| 5.55
681.12 5.70
704.48 5.85
728.00 6.00
572.88 5.32 114. 8
593.92 5.47 115.6
615. 12 5.62|116. 4
636.48 5.76 117.2
658.00 5.91118.0
712.50 6.28|120.0|| 787.50 6.37
768.00 6. 63122.0
824.50 6.99 124. 0
882.00 7.33 126. 0
848. 00] 6. 74
909.50 7.10
972.00 7.46
940. 50| 7.68 128. 0|1, 035. 50| 7.82
000. 00) 8. 02₤130. 01, 100. 00 8. 17
10.5 102.0 850.50 7.95 112.0
955. 50 8. 17 122. 01, 060. 50| 8. 35|132. 01, 165. 50 8.51
168
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
Bottom width
120 feet
130 feet
Depth
T
A
2
T
A
T T
A
→
T
A
___
0.2 100.8 20.08 0.20 110.8
0.4 101.6 40.32 .40 111.6
0.6 102.4 60.72
0.8 103.2 81.28
•
59112. 4
.78113. 2
66.72
89.28
22.08 0.20 120.8
44.32.40 121.6
.59 122.4
79 123.2
24.08 0.20 130.8
48.32.40 131.6
72.72 59/132, 4
*
97.28
.79 133. 2
26.08 0.20
52.32 .40
78.72 .59
105.28 .79
0246 00
1,0 104.0
1,2 104.8
102.00 98 114.0
122.88 1.17114.8
1.4 105.6
1.6 106.4
1.8 107.2
143.92 1.35 115. 6
165.12 1.54116. 4
107.2 186.48 1.73|117. 2
112.00 .98 124.0
134.88 1. 17 124.8
157.92 1.36 125. 6
181.12 1.55126. 4
204.48 1.73 127.2
122.00
.98 134.0
132.00 .98
146,88
1.17 134. 8
158.88 1.17
171.92 1.36 135. 6
185.92 1.36
197.12 1.55|136. 4|
213.12 1.55
222.48 1.74137. 2
240.48 1.74
2.0 108.0
208.00 1.91 118.0
228.00
1.92 128.0
2.2 108.8 229.68 2.09118.8
251, 68
2.10 128.8
2.4 109.6
251.52 2.27|119.6|
275. 52
2.28 129.6
2.6 110.4
2.8 111.2
273.52 2.45|120. 4| 299.52
295.68 2.63|121.2|||| 323.68
2.46|130. 4|
2.64|131. 2
248.00 1.92138.0
273.68 2.11138. 8
299. 52 2.29 139.6
325.52 2.47|140. 4|
351.68 2.65 141,2
268.00 1.93
295.68 2.11
323.52 2.30.
351.52 2,48
379.68 2.66
3.4 113.6
3.6 114.4
3.8 115.2
3.0 112.0 318.00 2.80 122.0
3.2 112.8 340.48 2.98 122.8
363.12 3.15 123. 6
385.92 3.32 124.4
408.88 3.49[125, 2]
421.92
446.88
348.00 2.82 132.0
372.48 3.00 132.8
397. 12 3. 17133. 6
3.35 134, 4
3.52 135. 2
378.00 2.83|142. 0]
404.48 3.01 142.8
431. 12 3.19143. 6
457.92 3.36 144. 4
484.88 3.54|145. 2]
408.00 2.84
436.48 3.02
465, 12 3.20
493.92 3.38
522.88 3.56
4,0 116.0
4.2 116.8
432.00 3.66|126. 0
455.28 3.83 126.8
4.4 117.6
478.72 4.00 127. 6)
4.6 118.4
502.32 4.17 128.4
4.8 119.2
526.08 4.33 129. 2
472.00 3.69|136.0|
497.28 3.86 136. 8.
522.72 4.03 137.6]
548.32 4. 20138. 4
574.08 4.37139. 2
512.00 3.71|146.0|
539.28 3.89146.8
566.72 4.06|147.6]
594. 32 4.23 148. 4
622.08 4.40149. 2)
552.00 3.73
581.28 3.91
610.72 4.08
640.32 4.25
670.08 4.42
5.0 120.0
5.2 120.8
5.4 121.6
5.6 122.4
5.8 123.2
6.0 124.0
6.2 124.8
550.00 4.49 130.0
574.08 4,66 130.8
598.32 4.82 131.6
622.72 4.98 132. 4
647.28 5.14 133. 2
672.00 5.30[134, 0]
696.88 5.46 134. 8
6.4 125.6 721.92 5.61 135.6
6.6 126.4
6.8 127.2
747.12 5.77136.4
772.48 5.92 137. 2
7.0 128.0
798.00 6.08|138.0|
7.5 130.0 862.50 6.46 140.0
8.0 132.0 928.00
8.5 134.0 994.50
9.0 136. 01, 062. 00|
9.5 138.01, 130. 50
10.0 140.01, 200.00
600.00 4.53|140.0
626.08 4.70|140.8|
652.32 4.86 141.6
678.72 5.03|142. 4|
705.28 5.19 143. 2
732.00 5.35 144.0
758.88 5.51144.8
785.92 5.67 145. 6
813.12 5.83|146. 4|
840.48 5.99147.2
650.00 4.57|150.0)
678.08 4.73150.8
706. 32 4.90 151.6
706.32 4.90 151.6
734.72 5.07152.4
763. 28 5. 23 153. 2
792.00 5.39 154, 0.
820.88 5. 56 154. 8
849.92 5.72 155. 6
879.12 5.88|156.4
908.48 6.06157.2
868.00 6.14148.0 938.00
937.50 6.53 150. 01, 012, 50|
6.91|152. 01, 088.00
7.29 154. 01, 164. 50
7.67 156. 01, 242.00
6.83 142. 01,008.00
7.21 144. 01, 079. 50
7. 57|146. 01, 152.00
7. 93 148.01, 225. 50
8.29 150.01, 300.00
8.04 158. 01, 320. 50
8.40 160.01, 400.00
760.32 4.93
790.72 5.10
821. 28 5.27
852.00 5.43
882.88 5.60
913.92 5.76
945. 12 5.92
976.48 6.09
6.20 158. 01, 008. 00 6.25
6.59₤160.0|1, 087.50 6.65
6.98|162. 01, 168.00 7.05
7.37164. 01, 249, 50| 7.44
7.75|166.01, 332.00 7.82
8. 13 168.01, 415. 50 8. 21
8. 50 170. 01, 500.00 8.59
700.00) 4.59
730.08) 4.76
10.5 142.01, 270. 50
8.87 172.01, 585. 50 8.96
8.65 152.01, 375.50
8.76162. 01, 480. 50
HYDRAULIC TABLES
169
Table 10.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1—Continued
T, and

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
до
T
A
T T
A
Τ T
A
0.2 140.8
0.4141.6
0.6 142. 4
0.8 143.2
113. 28
28.08 0.20|150.8
56.32.40 151.6
84.72 .59152.4
.79153.2
30.08 0.20 160.8
32.08 0.20 170.8
34.08 0.20
60.32
.40161.6
64.32
.40171.6
68.32 .40
90.72.59162. 4
96.72
.59 172.4
.59 172. 4|
102.72 .59
1.0 144.0
1.2 144.8
1.4 145.6
142.00 .98 154.0
170.88 1.18 154.8
199.92 1.37 155.6
1.6 146.4
1.8 147.2
229.12 1.56156.4
258.48 1.75157.2
2.0 148.0
2.2 148.8
2.4149.6
2.6 150.4
288.00 1.93 158. 0
317.68 2.12158.8
2.8 151.2
435. 68
121.28.79163. 2
152.00 .98 164. 0
182.88 1.18164. 8
213.92 1.37165. 6
245.12 1. 56166. 4|
276.48 1.75 167. 2
308.00 1.94 168. 0
339.68 2.13168. 8
371.52 2.31 169.6
2.50 170. 4
347.52 2.31 159. 6
347.52 2.31 159.6
377.52 2.49|160.4| 403.52
407.68 2.67 161.2
.98174. 0
162.00
194.88 1.18174.8
227.92 1.37 175.6
261.12 1.56 176. 4]
294.48 1.75 177.2
.79 163. 2
129. 28
129.28.79|173. 2|
137.28 .79
172.00
.99
206.88 1.18
241.92 1.37
277.12 1.56
312.48 1.76
2.68 171.2
328.00 1.94 178.0
361.68 2.13178.8
395. 52 2.32 179.6
429.52 2.50 180.4
463.68 2.69 181.2.
348.00) 1.94
383.68 2.13
419.52 2.32
455.52 2.51
491.68 2.69
3.0 152.0
3.2 152.8
3.4 153.6
3.6 154.4
3.8 155.2
438.00 2.85162.0
468.48 3.04|162. 8
499.12 3.22|163.6|
529.92 3.39 164. 4
560.88 3.57|165. 2
468.00 2.86|172. 0|
500.48 3.05 172.8
533.12 3.23173. 6
565.92 3.41 174. 4
598.88 3.59 175. 2
498.00 2.87182. 0
532.48 3.05|182.8]
567.12 3.24 183.6
601.92 3.42 184.4
528.00 2.88
564.48 3.06
601.12 3.25
637.92 3.43
636.88 3.60 185.2
674.88 3.61
4.0 156.0
4.2 156.8
4.4 157.6
4.6 158.4
4.8 159.2
592.00 3.75 166.0
623.28 3.93 166.8
654.72 4. 10 167.6.
686.32 4.27168.4
718.08 4.45 169.2
632.00 3.76 176. 0
665.28 3.94176.8
698.72 4.12177.6
732.32 4.29 178.4
766.08| 4.47|179. 2
672.00 3.78186.0
712.00 3.79
707.28 3.96 186.8
749.28 3.97
742.72 4.13 187.6
786.72 4.15
778.32 4.31 188.4
824.32 4.33
814.08 4.49 189.2
862.08 4.50
5.0 160.0
750.00 4.62 170.0
800.00 4.64 180.0
850.00 4.66 190.0
900.00 4.68
5.2 160.8 782.08 4.79170.8
5.4161.6
814.32 4.96171.6
5.6 162.4
5.8 163.2
846.72 5.13 172.4
879.28 5.30 173.2
834. 08 4.81|180.8
868.32 4.99181.6
902.72 5.16 182.4
937.28 5.33 183. 2
886.08 4.84190.8
938.08 4.85
922.32 5.01191.6 976.32 5.03
958. 72 5. 18192. 41, 014. 72 5. 20
995. 28 5.35 193. 21, 053. 28
5.38
912.00 5.47 174.0 972.00
6.0 164.0
6.2 164.8 944.88
6.4 165.6 977.92
6.6 166. 41, 011. 12
6.8 167. 21, 044. 48
7.0 168.0 1,078.00
7.5 170.01, 162. 50
8.0 172. 01, 248.00
8.5 174. 01, 334. 50
9.0 176. 01, 422.00
9.5 178. 01, 510. 50|
10.0 180.01, 600.00
10.5 182.01, 690. 50
5. 63 174. 81, 006. 88
5.80 175. 61, 041. 92||
5.96 176. 41, 077. 12
6. 13 177. 21, 112. 48
6.29 178.01, 148.00
6.70 180. 01, 237.50
7.10 182. 01, 328.00
7.50 184.01, 419. 50
7.89|186. 01, 512.00
8. 28 188. 01, 605. 50|
8.66 190. 01, 700.00
9.04|192. 01, 795. 50
5. 50184. 01, 032. 00|
5.67 184. 81, 068. 88
5.83|185. 61, 105. 92
6. 00186. 41, 143. 12
6.17 187. 21, 180. 48
6.33 188. 01, 218.00
6. 74190. 01, 312.50
7. 15192. 01, 408.00
7. 55194. 01, 504. 50
7.95 196. 01, 602. 00
8. 34 198. 01, 700. 50
8. 73 200. 01, 800. 00
9. 12|202. 01, 900. 50
5.55
5.72
5.89
6.06
6. 23
5. 52|194. 01, 092. 00
5. 69194. 81, 130. 88
5.86 195. 61, 169. 92
6.03|196. 41, 209. 12
6. 20197. 21, 248. 48
6.37198. 01, 288.00 6. 40
6.78 200. 01, 387.50 6. 82
7.19 202. 01, 488.00 7. 23
7. 60 204. 01, 589. 50 7.64
8.00 206. 01, 692. 00
8.05
8. 40|208.01, 795. 50 8. 45
8. 79210. 01, 900.00 8.85
9. 18212. 02, 005. 50 9.24
563189°-44~ -12
170
HYDRAULIC TABLES
Table 10.—Area in
square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
A
до
T
A
0.2
180.8
36.08
0.20 190.8
38.08
0.20
200.8
40.08
0.20
0.4
181.6
72.32 .40
191.6
76.32
.40
201.6
80.32
40
•
0.6
182.4
108.72
.60
192.4
114. 72
.60
202.4
120.72
.60
0.8
183.2
145. 28
.79
193.2
153.28
.79
203. 2
161.28
.79
1.2
1.4
1.6
1.8
024∞ ∞
1.0 184.0
182.00
.99
194.0
192.00
.99
204.0
202.00
.99
184.8
218.88
1.18 194.8
230.88
1.18 204.8
242.88
1.18
185.6
255.92
1.37
195.6
269.92
1.38 205.6
283.92
1.38
186. 4
293.12
1.57
196.4
309.12
187.2
330.48
1.76
197. 2
348.48
1.57
1.76 207.2
206.4
325. 12
1.57
366.48
1.76
2.0
188.0
368.00
1.95
198.0
388.00 1.95
208.0
408.00
1.95
2.2
188.8
405. 68
2.14
2.4
189.6
443. 52
2.33
2.6
190.4
481.52
2. 51
200.4
2.8 191.2
519.68
2.70
201.2
198.8 427.68 2.14 208.8
199.6 467.52 2.33 209.6
507.52 2.52
547.68 2.70 211.2
449.68
2. 14
491.52
2. 33
210.4
533. 52
2.52
575.68
2.71
3.0 192.0
558.00
2.88
202.0
588.00
2.89
212.0
618.00
2.90
3.2
192.8
596.48
3.07
202.8
628.48
3.08
212.8
660.48
3.08
3.4
193.6
635. 12
3.25
203.6
669.12
3. 26
213.6
703. 12
3. 27
3.6
194. 4
673.92
3. 44
204.4
709.92
3.44
214.4
745.92
3.45
3.8
195. 2
712.88
3.62
205.2|
750.88
3.63
215.2
788.88
3.64
4.0
196.0
752.00
3.80 206.0
792.00
3.81
216.0
832.00
3.82
4.2
196.8 791.28
4.4 197.6 830.72 4.16
4.6 198.4 870.32
3.98 206.8
833.28
3.99
216.8
875. 28
4.00
207.6
874. 72
4. 171
217.6
918.72
4.18
4.34 208.4
916.32
4. 35
218.4
962. 32
4.36
4.8
199.2
910.08
4.52 209.2
958.08
4.53
219. 2 1,006. 08
4. 54
5.0
200.01
950.00
4.69
210. 0
1,000.00
4.71
220.0 1,050.00
4.72
5.2
200.8 990.08
4.87
210.8 1,042. 08
4.89
220.8 1,094. 08
4.90
5.4
201.6 1,030. 32
5.05
211.6 1.084.32
5.06
1
221.6 1, 138. 32
5.08
5.6
202.4 1,070. 72
5.22
212.4 1, 126. 72
5.24
222.4| 1, 182. 72
5.26
5.8
203. 2 1, 111. 28
5.40
213.2 1,
213. 2 1, 169. 28
5. 41
223.2 1, 227. 28
5.43
6.0
204. 0 1, 152. 00
5.57
214.0 1, 212.00
5. 59
224.0 1, 272.00
5.61
6.2
204.8 1, 192.88
5.74
214.8 1, 254. 88
5.76
224.8 1, 316. 88
5.78
6. 4
205. 6 1, 233.92
5.91
215.6 1, 297.92
5.941
225.6 1,361.92
5.96
6.6
206. 41, 275. 12
6.09
6.8
207. 21, 316. 48
6.26
216. 4
217.2 1, 384. 48
1, 341. 12
6.11
}
226.4 1, 407.12
6.13
6. 28
}
227 2 1, 452. 48)
6.30
7.0
208.0 1,358.00
6.43
218.0 1,428. 00
6.45
228.0 1,498.00
6.48
7.5
210.0 1, 462. 50
6.85
220.0❘ 1, 537. 50
6.88
230.0 1, 612. 50
6.90
8.0
212.0 1, 568. 00
7.27
222. 01, 648. 00
7.30
232.01, 728.00]
7.33
8.5
214. 0 1, 674. 50
7.68
224.0 1,
224. 0 1,759. 50
7.72
234.0 1, 844. 50
7.75
9.0
216.01, 782.00
8.09
226.0 1,872.00
8.13
236.0 1,962.00
8.17
9.5
218. 0 1,890. 50
8.50
228.0] 1, 985. 50
8.54
238.0 2,080. 50
8.58
10.0
220.0 2,000.00
8.90
230.0❘ 2, 100. 00|
8.95
240.0 2, 200.00
8.99
10.5
9.40
222.02, 110.50
242. 0 2, 320. 50|
9.30
9.35
232.0 2, 215. 50
HYDRAULIC TABLES
171
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r,
in feet, r, of trapezoidal
of trapezoidal channels,
side slopes 2 to 1—Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
T
A
T
A
T
A
11 46.0 264.0 5.16 47.0
21
RRH BAH** 222*
13
14 58.0
12 50.0 312.0 5.60 51.0
54.0 364.0 6.05 55.0
420.0 6.50 59.0
275.0 5.27 48.0
324. 0 5.72 52.0
377.0 6. 17 56. 0
434.0 6.61 60.0
286.0 5.38 49.0
297.0 5.48
336.0 5.83 53.0
348.0 5.93
390.0 6.28 57.0
403.0 6.38
448.0 6.73 61.0
462.0 6.83
15 62.0
480.0 6.95] 63.0
495.0 7.06 64.0
16 66.0
544.0 7.40| 67.0]
17 70.0 612.0 7.84 71.0
560.0 7.51 68.0
629.0 7.96 72.0
18 74.0
684.0 8.29 75.0
702.0 8.41 76.0
19 78.0
760.0 8.74 79.0
779.0 8.86 80.0
510.0 7. 17 65.0
576.0 7.62 69.0
646.0 8.07 73, 0
720.0 8.52 77.0
798.0 8.97 81. 0
525.0 7.28
592.0 7.73
20 82.0 840.0 9.19 83.0
86.0
924.0 9.63 87.0
23
90. 01, 012. 010. 08
94. 01, 104. 010. 53] 95. 0)
24 98. 01, 200. 010. 98| 99. 0
91.0
860.0 9.30 84.0 880.0 9.42 85.0
945. 0 9.75 88.0 966.0 9.87 89.0
1, 034. 010. 20 92. 0 1,056. 010. 31 93. 0
1, 127. 010. 65 96.0 1, 150. 010. 76 97.0]
1, 224. 011. 09 100.0 1, 248. 0|11. 21|101. 0]
25 102. 01, 300. 011. 42 103. 0
26 106. 01, 404. 011. 87 107. 0
27110. 01, 512. 012. 32 111.0
28 114. 01, 624. 0 12. 77 115. 0
29 118. 01, 740. 0|13. 21|119. 0
30 122. 01, 860. 0|13. 66 123. 0
31 126. 01, 984. 014. 11127. 0
32 130. 02, 112. 014. 55131.0
33 134. 02, 244. 015. 00135. 0
34 138. 02, 380. 015. 45₤139. 0
1, 325. 011. 54 104. 0
1, 430. 011. 99 108. 0
1, 539. 012. 44 112. 0
1, 652.0 12. 88 116.0
1, 769. 0|13. 33|120. 0|
1, 350. 011.66 105. 0
1, 456. 012. 11109. 0
1, 566. 012. 55113. 0
1, 680. 013. 00 117. 0
1, 798. 0 13. 45 121.0
1,890. 013. 78|124. 0|| 1, 920. 0 13. 90₤125. 0
2, 015. 014. 23|128. 0| 2, 046. 014. 34 129. 0
2, 144. 014. 67 132. 0 2, 176. 014. 79 133. 0
2, 277. 015. 12136. 02, 310. 015. 24 137. 0
2, 414. 015. 57 140.0 2, 448. 015. 69 141.0
35 142. 02, 520. 015. 90 143. 02, 555. 016. 02144.0
36 146. 02, 664. 0|16. 34|147.0
37 150. 02, 812. 0|16. 79|151. 0
38 154. 02. 964. 017. 24 155. 0
39 158. 03, 120. 0|17. 69₤159. 0
40 162. 03, 280. 018. 13 163. 0
41 166. 03, 444. 018. 58 167. 0
42 170. 03, 612. 019. 03 171.0
43 174. 03, 784. 0₤19. 47|175. 0
44 178. 03, 960. 019. 92₤179. 0
45 182. 04, 140. 020. 37 183. 0
46 186. 0 4, 324. 0 20.82 187.0
47 190. 04, 512. 021. 26|191. 0
48 194. 04, 704. 021. 71195. 0
49 198.04, 900. 0 22. 16 199. 0
2, 700. 016. 46|148. 0|
2, 849. 016. 91|152. 0|
3, 002. 017. 36156. 0
3, 159. 0 17.81160.0
3, 320. 018. 25 164. 0
3, 485. 018. 70 168.0
3, 654. 019. 15172. 0
3,827. 0|19. 60 176. 0
4, 004. 020. 04180. 0
4, 185. 020. 49/184. 0
4, 370. 020. 94|188. 0
4, 559. 021. 38192. 0
4, 752. 021. 83196. 0
4, 949. 0 22. 28 200. 0
2, 590. 016. 13145. 0
2, 736. 016. 58|149. 0||
2, 886. 017. 03|153. 0)
3, 040. 017. 48 157.0
3, 193. 017. 92|161. 0
3, 360. 018. 37 165. 0
3, 526. 018. 82 169. 0
3, 696. 019. 27 173. 0
3,870. 0 19. 71 177.0
4, 048. 0 20. 16₤181.0
4, 230. 020. 61 185. 0
4, 416. 021. 06|189. 0
4, 606. 021. 50 193. 0
4, 800. 021.95 197.0
4, 998. 0 22. 40 201. 0
663.0 8.18
738.0 8.63
817.0 9.08
900.0 9.53
987.0 9.98
1,078. 010. 43
1, 173. 0 10. 88
1, 272. 0[11. 32
1,375. 011. 77
1, 482.0 12. 22
1, 593. 012. 67
1, 708. 0 13. 12
1,827.0 13. 56
1,950. 014. 01
2, 077.014. 46
2, 208. 014. 91
2, 343. 015. 36
2, 482. 015. 80
2, 625. 016. 25
2, 772. 0|16. 70
2, 923. 0【17. 15
3,078. 017. 59
3, 237. 018. 04
3, 400. 018. 49
3, 567. 018. 94
3, 738. 0[19. 38
3,913. 019.83
4,092. 020. 28
4, 275. 020. 73
4, 462. 021. 18
4, 653. 021. 62
4,848. 022. 07
5, 047. 022. 52
50 202. 05, 100. 0 22. 61 203. 05, 150. 022. 73204. 05, 200.0 22. 85 205. 0
5, 250. 022. 97
172
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
*?
T
T
A
↑
T
A
r
T
A
T
HRR1
11
50.0
308.0 5.58 51.0
12
54.0
360.0 6.03 55.0
13
58.0
416.0 6.49 59.0
14
62.0
476.0 6.94 63.0
319.0 5.68 52.0
372.0 6.13 56.0
429.0 6.59| 60.0|
490.0 7.04 64.0
330.05.77 53.0
384.0 6. 23 57.0
442.0 6.68 61.0
504.07.14 65.0
341.0 5.86
396.0 6.32
455.0 6.78
518.0 7.23
15
66.0
540.0 7.39 67.0
16
70.0
608.0 7.84 71.0
17
74.0
18 78.0
680.0 8.29 75.0
756.0 8.74 79.0
19
82.0
836.0 9.19 83.0
555.0 7.49 68.0
624.0 7.94 72.0
697.0 8.39 76.0
774.0 8.85| 80.0
855.0 9.30 84.0
570.0 7.59 69.0
640.0 8.04 73.0
714.0 8.501 77.0
792.0 8.95 81.0
874.0 9.40 85.0
585.0 7.69
656.0 8.14
731.0 8.60
810.09.05
893.0 9.50
20❘ 86.0
920.0 9.64 87.0
21 90.0
22
94. 0
23
98.0
24 102. 0
1,008. 0 10. 09
1, 100.0 10. 54
1, 196. 010. 99
1, 296. 0 11. 44
91. 0
95. 0
99. 0
103. 0
25 106.0
26 110 0
27 114. 0
28 118. 0
29 122.0
1,400. 011. 88 107.0
1, 508. 012. 33 111. 0
1, 620. 0 12. 78 115. 0
1, 736. 0 13. 23 119. 0
1,856. 0 13. 68 123. 0
940.0 9.75 88.0
1, 029. 010. 20 92.0
1, 122. 0 10. 65 96. 0
1, 219. 011. 10 100.0
1, 320. 011. 55 104. 0
1, 425. 0|11. 99 108. 0
1, 534. 0 12. 44 112. 0
1, 647. 0 12. 89 116. 0
1, 764. 013. 34 120. 0
1, 885. 0 13. 79 124. 0
2, 010. 0 14. 24 128. 0
2, 139. 0 14. 69 132. 0
2, 272. 0 15. 14 136.0
2, 409. 0 15. 58 140. 0
30 126.0 1, 980. 014. 13 127. 0
31 130. 0 2, 108. 0 14. 57 131. 0
32 134. 0 2, 240. 0 15. 02135. 0
33 138.0 2, 376. 0 15. 47 139. 0
34 142.0 2,516. 0 15. 92 143. 02, 550. 016. 03 144. 0
35146. 0 2, 660. 0 16. 37 147.0
36 150.0 2, 808. 0 16. 81 151. 0
37 154. 02, 960. 0 17. 26 155. 0
38158.0 3, 116. 0 17. 71 159. 0
39 162.0 3, 276. 0 18. 16 163. 0]
40 166. 0 3, 440. 018. 61 167. 0
41 170. 0 3, 608. 0 19.05 171. 0
42 174.0 3, 780. 0 19. 50 175.0
43 178.0 3,956. 0 19. 95 179.0
44 182. 0 4, 136. 0 20. 40 183. 0
2, 695. 0 16. 48 148. 0
2, 844. 0 16. 93 152.0
2, 997.0 17.38 156. 0
3, 154. 0 17.83 160. 0
3, 315. 0|18. 27 164. 0
3, 480. 018. 72168.0
3, 649. 0 19. 17 172. 0
3.822. 0 19. 62 176. 0
3, 999. 020. 07 180. 0
4, 180. 020. 51 184. 0
960.0 9.85 89.0
1, 050. 0 10. 30 93. 0
1, 144. 0 10.75 97.0
1, 242. 011. 20 101. 0
1, 344. 0 11. 65 105. 0
1, 450. 0 12. 10 109. 0
1, 560. 0 12. 55113. 0
1, 674. 0 13.00 117. 0
1, 792. 0 13. 45 121. 0
1, 914. 0 13. 90 125. 0]
2, 040. 014. 35 129. 0
2, 170. 0 14. 80 133. 0
2, 304. 015. 25 137. 0
2, 442. 0 15. 70 141. 0
2, 584. 0 16. 14 145. 0
2, 730. 0 16. 59 149.0
2, 880. 017.04 153. 0
3, 034. 0 17.49 157. 0
3, 192. 0 17. 94 161.0
3, 354. 0 18. 39 165. 0
980.0 9.96
1,071. 010. 41
1, 166. 0 10.86
1, 265. 011. 31
1, 368. 0 11. 76
1, 475. 0 12. 21
1, 586.0 12. 66
1,701. 0 13. 11
1, 820. 0 13. 56
1, 943. 0 14. 01
2,070. 0 14. 46
2. 201. 0 14.91
2, 336. 0 15. 36
2, 475.0 15.81
2, 618. 0 16. 26
2, 765. 0 16.70
2,916.017. 15
3, 071.0 17.60
3, 230. 0 18. 05
3, 393. 018. 50
3, 560. 0 18. 95
3, 731. 0 19. 40
3, 906.0 19.84
4, 085.0 20. 29
4, 268. 020.74
3, 520. 0 18. 84 169.0
3, 690. 0 19. 28 173. 0
3,864. 0 19.73 177.0
4, 042.0 20. 18 181. 0
4, 224. 0 20. 63 185. 0
45186. 0 4, 320. 0|20. 84|187. 0
4, 410. 0 21. 08189 0
46 130. 0 4, 508. 0 21. 29 191. 0
4, 600. 0|21. 52193. 0
47 194. 0 4, 700. 0 21. 74 195. 0
4, 794. 021. 97197. 0
48 198.0 4, 896. 0 22. 19 199. 0
4, 992. 0(22. 42|201. 05, 040.0 22.53
49 202. 0 5,096. 0 22. 64 203. 05, 145.0 22. 75 204.05, 194. 0 22. 87 205. 0 5, 243.0 22.98
4, 365. 020. 96|188. 0
4, 554. 021. 41192. 0
4, 747. 021.86 196. 0
4, 944. 0|22. 30|200. 0
4, 455. 0 21. 19
4, 646. 021. 64
4,841.0 22. 09
50 206.0 5,300.0 23. 08 207. 0 5, 350.0 23. 20 208. 0 5, 400. 023. 32209. 0
5, 450.0 23.43
HYDRAULIC TABLES
173
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
Τ
A
*
T
A
-
T
A
↑
Τ
A
T
11
54.0
352.0 5.95 56.0
12
58.0
408.0 6.41-60.0
13 62.0
14 66.0
468.0 6.87 64.0
532.0 7.33 68.0
374.0 6.11| 58.0
432.0 6.58 62.0
494.0 7.04 66.0
560.0 7.51 70.0
396.0 6.27 60.0|
456.0 6.74 64.0
520.0 7.21 68.0
588.0 7.68 72.0
418.0 6.41
480.0 6.89
546.0 7.36
616.0 7.84
15
70.0
600.0 7.78 72.0
16
74.0
672.0 8.24 76.0
17
78.0
748.0 8.70 80.0
18
82.0
828.0 9.15 84.0
912.0 9.60 88.0
630.0 7.97 74.0
704.0 8.43] 78.0
782.0 8.88 82.0
864.0 9.34 86.0
950.0 9.80 90.0
660.0 8.14 76.0
736.0 8.60 80.0
816.0 9.06 84.0
900.0 9.52 88.0
988.0 9.98 92.0 1,026.0|10.16
690.0 8.31
768.0 8.77
850.0 9.24
936.0 9.70
19 86.0
20 90.0 1,000.0 10.06 92.0
21 94.0 1,092. 010. 51 96.0
22 98.0
98.0 1, 188.0 10.96 100.0
23 102.0 1,288. 0 11. 41 104. 0
24 106.0 1,392. 011. 86 108. 0
25 110.0 1,500.0 12. 31 112. 0
26 114.0 1,612. 0 12. 77 116.0
27 118.0 1,728.0 13. 22|120.0
28 122.0 1,848. 0 13. 67 124.0
29 126.0 1,972. 0 14. 12 128.0
30 130.0 2, 100.0 14. 57 132.0
31 134.0 2,232. 0|15. 02|136. 0|
32138.0 2,368. 0 15. 47 140.0
33 142.0 2, 508. 0 15. 92 144. 0
34 146.0 2,652. 0 16. 37 148.0
35 150.0 2,800. 0 16. 81 152.0
36 154.0 2,952. 017. 26 156. 0
37 158.0 3,108. 0 17. 71 160.0
38 162.0 3,268. 0 18. 16 164. 0
39 166.0 3, 432. 0 18. 61 168.0
40 170.0 3,600. 0 19. 06|172. 0
41 174.0 3,772. 0 19. 51|176. 0
42178.0 3,948. 0 19. 96 180.0
43 182.0 4, 128. 0 20. 41 184. 0
44 186.0 4, 312. 0 20. 85 188. 0
94.0
1,040.0 10. 25
1, 134. 0 10.71 98. 0
1, 232. 011. 16102. 0
1, 334. 011. 61 106. 0
1,440.012.07 110.0
1,550.0 12. 52 114.0
1, 664. 012. 97118. 0
1,782. 013. 42 122.0
1,904. 013. 88 126. 0
2, 030. 014. 33 130.0
2, 160.0 14.78 134.0
2, 294. 015. 23|138.0|
2, 432. 015. 68 142.0
2, 574. 016. 13146. 0
2,720.0 16. 58 150.0
2, 870. 0 17.03 154. 0
3, 024. 017. 48 158. 0
3, 182.0 17.93162.0
3, 344. 018. 38 166.0
3, 510. 018. 83 170.0
3, 680. 0 19. 28|174.0
3,854. 0 19.73|178. 0|
4,032. 020. 18 182. 0
4, 214. 020. 63 186. 0
4, 400. 021.08 190.0
1,080.0 10. 44 96.0
1, 176.0 10.90 100.0
1, 276.011.35 104.0
1,380.0 11. 81 108. 0
1, 488.012. 26 112.0
1,600.0 12. 72116.0
1, 716. 0 13. 17 120.0
1,836.0 13.63 124.0
1,960. 0 14. 08 128. 0
2,088. 014. 53 132.0
2, 220.0 14.98 136.0
|2, 356. 0 15. 44|140.0
2, 496. 015. 89 144.0
2, 640.0 16. 34 148.0
2,788.0 16. 79 152.0
2, 940.0 17. 24 156. 0
3,096. 0 17. 69 160. 0
3, 256. 018. 14164. 0
3, 420.0 18. 59 168.0
3, 588. 0 19.04 172.0
3,760. 0|19. 49|176. 0|
3, 936. 0 19.94 180.0
4, 116.0 20. 39 184. 0
4, 300.0 20. 84 188. 0
4, 488. 021. 29 192.0
45 190.0 4, 500.0 21.30 192. 0 4, 590. 021. 52194. 0 4, 680.0 21.74 196.0
46 194. 0 4, 692. 0 21. 75 196. 0 4, 784. 021.97 198. 0 4, 876. 0 22. 19 200.0
47 198.0 4,888.0 22. 20|200.0|| 4,982.0|22. 42202.0|||5, 076. 0 22. 64 204. 0
48 202.0 5,088. 0|22. 65|204. 0 5, 184. 022. 87|206. 0 5, 280. 0 23. 09 208.0Į
49 206.0 5, 292. 0|23. 10|208.0 5, 390.0|23. 32 210.0 5, 488. 0 23. 54|212.0
1, 120.0 10. 62
1, 218. 0 11. 08
1, 320. 011. 54
1, 426. 0 12.00
1, 536. 012. 45
1,650.0 12. 91
1,768. 0 13. 37
1,890.0 13.82
2, 016. 014. 28
2, 146. 0 14. 73
2, 280.0 15. 18
2, 418. 015. 64
2, 560. 0 16.09
2, 706.0 16. 54
2,856.0 16.99
3, 010.0 17.45
3, 168.0 17.90
3, 330. 0 18. 35
3, 496. 018. 80
3,666.019. 25
3,840. 0【19. 70
4,018. 020. 15
4, 200. 0 20. 61
4, 386.0 21.06
4, 576.0 21.51
4, 770.0 21.96
4, 968.0 22. 41
5,170.0 22. 86
5, 376. 023. 31
5, 586.0 23. 76
50 210. 5,500.0 23.54 5,800.0 24.21
54/212
212. 0 5,600.0 23.77 214.0
5,700.0 23.99 216.0
174
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1—Continued

650.0 7.91
728.0 8.41
Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T
T
A
Τ
A
↑ T
A
T
11
62.0
17
18
19
221 ==== 222*
66.0
13
70.0
440.0 6.55 64.0
504.07.03 68,0
572.0 7.51 72.0
462.0 6.68 66.0
528.0 7.17 70.0
14
74.0
644.0 7.99 76.0
598.0 7.65 74.0
672.0 8.13 78.0
15
78.0
720.0 8.46 80.0
16
82.0
800.0 8.93 84.0
86.0
884.0 9.40 88.0
90.0
972.0 9.87 92. 0
94. 0 1,064. 010. 33 96.0
750.0 8.61 82.0
832.0 9.09 86.0
918.0 9.56 90.0
1, 008.010.03 94. 0
1, 102. 010. 50 98. 0
484.0 6.80 68.0
552.0 7.30 72.0
624.0 7.79 76.0
700.0 8.27 80.0
780.0 8.76 84.0
864.0 9.24 88.0
952.0 9.71 92.0
1, 044. 0 10. 19 96.0
1, 140. 010. 66 100.0
506.0 6.91
576.0 7.42
20 98.0 1, 160.0 10. 80 100.0
21 102. 0 1,260. 011. 26 104. 0
22 106. 0 1,364. 011. 72 108. 0
23 110.0 1, 472. 012. 18 112. 0
24 114.0 1,584. 012. 64 116.0
25 118. 0 1, 700. 0 13. 10 120. 0
26 122.0 1,820. 0 13. 55 124. 0
27 126. 0 1,944. 0|14. 01|128.0
28 130.0 2,072. 014. 47 132. 0
29 134.0 2,204. 014. 92 136.0
30 138.0 2,340. 015. 38 140.0
31 142.0 2,480. 015. 83 144. 0
32 146.0 2, 624. 016. 29148.0
33 150.0 2, 772. 0 16. 74 152. 0
34 |154.0 2,924. 0 17. 19|156. 0
1, 200. 0 10. 96 102. 0
1, 302. 011. 43 106. 0
1, 408. 011. 89 110. 0
1, 518. 0 12. 36 114. 0
1, 632. 012. 82118. 0
1, 240. 011. 13 104. 0
1, 344. 011. 59 108.0
1, 452. 0 12. 06 112. 0
1, 564. 012. 53 116. 0
1, 680. 0 12. 99 120.0
1,800. 013. 45 124. 0
1, 924. 013. 91 128. 0
2, 052. 014. 38 132. 0
1,750. 013. 28122. 0
1, 872. 0 13. 74 126. 0
1,998. 014. 20|130. 0|
2, 128. 014. 65 134. 02, 184. 0 14. 83 136.0
2, 262. 015. 11 138. 0 2, 320.0 15. 29 140.0
2, 460. 015. 75 144. 0
2, 400.0 15. 57|142. 0
2, 542. 016. 02 146. 02, 604. 0 16. 21 148. 0
2, 688. 016. 48|150. 0| 2, 752. 0|16. 67|152.0
2, 838. 0 16. 94 154. 0 2, 904. 017. 12156.0
2, 992. 0 17. 39 158. 0 3,060. 0 17. 58 160.0
35 158.0 3,080. 0 17.65 160. 0 3, 150.0 17.84 162. 0
36 162.0 3, 240.0 18. 10 164. 0 3, 312, 018. 30 166. 0
37 166.0 3, 404. 0 18. 55 168.0 3, 478. 018. 75170. 0
38170.0 3, 572. 0 19. 01 172. 03, 648. 019. 21174. 0
39 174.0 3,744. 0 19. 46 176. 0
40 178.0 3,920. 0 19. 91|180. 0
41 182. 0 4, 100. 0 20. 36 184. 0
42 186.0 4, 284. 0 20. 81 188. 0
43190. 0 4, 472. 0 21. 26 192. 0]
44194.0 4,664. 021. 72 196. 0
45198.0 4,860. 0 22. 17 200.0
46 202.0 5,060. 0 22. 62 204. 0
47 206.0 5,264. 0/23. 07|208. 0|
48 210.0 5, 472. 0 23. 52212. 0
49 214.0 5,684. 0 23. 97 216. 0
3, 822. 019. 66 178.0
4, 000. 020. 11182.0
4, 182. 020. 56186. 0
4, 368. 021.02 190. 0
4, 558. 021. 47 194. 0
4, 752. 021. 92|198. 0
3, 220. 018. 04 164. 0
3, 384. 0 18. 49 168. 0
3, 552, 018. 95 172. 0]
3, 724. 019. 40176.0
3,900. 019. 86 180.0
4,080.020. 31|184. 0
4, 264. 020. 76 188. 0
4, 452. 0 21. 22 192. 0
4, 644. 021. 67 196. 0
4, 840.0 22. 12|200.0
5,040.0 22. 58 204. 0
810.0 8.89
896.0 9.38
986.0 9.86
1,080.0 10. 34
1, 178. 0 10. 81
1, 280.0 11. 28
1, 386.0 11.75
1, 496. 0 12. 22
1, 610. 012. 69
1,728.0 13. 16
1,850.013. 62
1, 976. 014. 09
2, 106. 014. 55
2, 240.0 15.01
2, 378. 0 15. 47
2, 520. 015. 93
2, 666. 016. 39
2,816. 016. 85
2,970.0 17.31
3, 128.0 17.77
3, 290.018. 22
3, 456. 018. 68
3, 626. 0 19. 14
3, 800. 019. 59
3, 978. 020. 05
4, 160.0 20. 50
4, 346.0 20.96
4, 536.0 21. 41
4, 730. 021.87
4, 928. 022. 32
5, 130.0 22.78
5, 336. 0|23. 23
5, 546. 023. 68
4,950. 022.37 202. 0
5, 152. 022. 82 206.0|| 5, 244. 0 23. 03/208. 0]
5, 358. 023. 28|210.0|| 5, 452. 0|23. 48|212.0
5, 568. 023. 73 214. 0 5, 664. 023. 93216.05, 760. 024. 13
5, 782. 024. 18 218. 0 5, 880. 0 24. 38 220.0 5,978.0 24. 59
50 218.0 5,900. 024. 42|220.0
024. 42220.
6, 100. 024. 84 224. 0 6, 200.0|25. 04
6, 000. 024. 63222.0
HYDRAULIC TABLES
175
in feet,
Table 10.-Area in square feet, A,
A, top width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued
T, and

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
་
до
T
A
Т
T
A
до
Τ
A
11 70.0
12 74.0
528.0 7.02 72.0
600.0 7.53 76.0
13 78.0
676.0 8.03 80.0
14 82.0
756.0 8.53 84.0
550.0 7.12 74.0
624.0 7.64 78.0
702.08.15 82.0
784.0 8.65 86.0
572.0 7.22 76.0
648.0 7.75 80.0
728.0 8.26 84.0.
812.0 8.77 88.0
594.0 7.32
840.0 9.02 88.0
15 86.0
16 90.0 928.0 9.51 92.0
17 94.0 1,020. 010. 00 96.0
18 98.0 1, 116.0 10.48 100.0
19 102. 0 1,216. 0 10. 96 104. 0
20 106. 0
21 110.0
22 114. 0
23 118.0
1,320. 0 11. 43 108. 0
1,428. 0 11. 91 112. 0
1, 540. 012. 38 116.0
1,656. 012. 85 120.0
24 122.0 1,776. 0 13. 32 124. 0
870.0 9.15 90.0
960.0 9.64 94.0
1,054. 0 10. 13 98.0
1, 152. 0 10. 62 102. 0
1, 254. 011. 10 106. 0
1,360. 011. 58 110.0
1, 470. 0 12.06 114. 0
1, 584. 0 12. 53 118. 0)
1,702. 0 13. 01 122. 0
1,824. 0 13. 48 126.0
25 126.0 1,900. 0 13. 79 128. 0
26 130.0 2,028. 0 14. 25 132. 02, 080. 014. 42 134. 0
27 134. 0 2, 160. 014. 72 136. 0
28 138.0 2,296. 015. 18 140.0
29 142.0 2,436. 0 15. 65 144. 0
30 146.0 2, 580. 0 16. 11 148. 0
31 150.0 2,728. 0|16. 57|152. 0|
32 154.0 2, 880. 0 17. 03156. 0
33 158. 0 3,036. 0 17. 49 160. 0
34 162.0 3, 196. 0 17. 95 164. 0
35 166.0 3,360. 0|18. 41 168. 0|
36170.0 3, 528. 0 18. 87 172. 0
37 174.0 3,700. 0]19. 32 176. 0
38 178. 0 3, 876. 019. 78 180. 0
39 182.0 4,056. 020. 24 184. 0
900.0 9.27 92.0
992.0 9.77 96.0
1,088. 010. 26 100.0
1, 188. 0 10. 75 104. 0
1, 292. 0 11. 24 108. 0
1,400. 011. 72 112. 0
1, 512. 0 12. 20 116. 0
1, 628.0 12. 68 120. 0
1, 748.0 13. 16 124. 0
1,872. 0 13. 63 128.0
1, 950. 013. 95 130. 02, 000. 0 14. 10 132. 0
2, 132. 0 14. 58 136. 0
2, 268. 0 15. 05 140.0
2, 408. 0 15. 51 1.44. 0
2, 552. 0 15. 98 148. 0
2, 214. 0 14.88 138. 0
2, 352. 0 15. 35 142. 0
2, 494. 0 15. 82146. 0
2, 640. 016. 28 150. 0
2, 790. 0|16. 74|154. 0|
2, 944. 0 17. 21 158. 0
3, 102. 0 17. 67 162. 0
3, 264. 0|18. 13 166. 0
3, 430. 0|18. 59170. 0
3, 600. 019. 05174. 0
3, 774. 019. 51|178. 0
3, 952. 0 19. 97182. 0
4, 134. 0 20. 42 186. 0
40 186.0 4, 240. 0 20.69 188. 0 4, 320.0 20. 88190. 0
41 190.0 4,428. 0 21. 15192.04, 510. 021. 34 194. 0
42 194. 0 4, 620.0 21.61 196.04, 704. 0 21. 79 198. 0
43 198.0 4,816.0 22. 06 200.0 4, 902. 0 22. 25202. 0
44 202. 0 5,016. 0 22. 52204. 0 5, 104. 022. 71206. 0
45 206.0 5,220. 0 22. 97 208. 0 5, 310.0 23. 16210. 0
46 210.0 5,428. 023. 42 212. 0 5, 520. 023. 62 214. 0
47 214. 0 5,640.0 23.88 216.0 5, 734. 024. 07|218. 0
48 218. 0 5,856.0 24.33 220.05, 952. 024. 53 222.0
49222.0 6,076. 024. 79 224. 0 6, 174. 0 24. 98 226. 0
2, 700.0 16. 45 152. 0
2, 852. 0 16. 91 156. 0
3, 008. 0 17. 38 160. 0
3, 168. 0 17. 84 164. 0
3, 332. 0 18. 30 168. 0
3, 500. 0|18. 76|172. 0]
3, 672. 019. 23 176. 0
3,848. 0 19. 69|180. 0
4, 028. 020. 15184. 0
4, 212. 020. 61 188. 0
672.0 7.84
754.0 8.36
840.0 8.88
930.0 9.39
1,024.0 9.89
1, 122. 010. 39
1, 224. 0 10.88
1,330. 011. 37
1, 440.0 11. 86
1, 554.0 12. 34
1, 672. 012. 82
1,794. 013. 30
1,920. 013. 78
2,050.0 14.26
2, 184. 014. 73
2, 322. 015. 20
2, 464. 015. 67
2, 610. 016. 14
2,760.0 16. 61
2, 914. 017. 08
3, 072. 017. 54
3, 234. 0 18. 01
3, 400. 018. 47
3, 570. 0₤18. 94
3, 744. 0 19. 40
3, 922. 0 19.86
4, 104. 0 20.32
4, 290.0 20. 78
4, 400. 021. 06 192.0 4, 480. 0 21. 24
4, 592. 021. 52 196. 0 4, 674. 0 21. 70
4, 788. 021. 98200. 0 4, 872. 0 22. 16
4, 988. 022. 44 204. 05, 074. 0 22. 62
5, 192. 0 22.90 208. 0 5, 280.0 23. 08
5, 400.0 23. 35 212.0
5, 612. 0 23. 81 216. 0
5, 828. 0|24. 26|220.0
6,048. 024. 72 224. 0
6, 272. 025. 18 228. 0
5,490.0 23. 54
5,704. 0 23.99
5, 922. 0 24. 45
6, 144. 0 24. 91
6, 370. 0 25. 36
50 226.0 6, 300.0 25. 24 228. 0
6, 600.0 25.82
6, 400. 0 25. 44 230.0
0 25.
6, 500.0 25. 63 232.0
025.
176
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T T
A
T
A
↑
T
A
γ
11
79.0
12
83.0
13
87.0
14
91.0
627.0 7.45 84.0
708.0 7.99| 88.0
793.0 8.51 92.0
882.0 9.04 96.0
792.0 7.98
888.0 8.57
15
16
95.0 975.0 9.55 100.0
99.0 1,072. 0 10. 06 104. 0
17 103. 0 1, 173. 0 10. 57 108. 0]
18 107.0 1, 278. 011. 07 112.0]
19111.0 1,387. 0 11. 56 116.0
20 115.0 1,500. 012. 05 120.0
21 119.0 1, 617.012. 54 124.0
22 123. 01, 738. 0 13. 03|128.0
23 127.0 1, 863. 0 13. 51 132. 0
24 131.0 1,992. 0 14. 00|136. 0
25 135.0 2, 125. 0|14. 48|140. Of
26 139.0 2, 262. 014. 95 144. 0
27 143.0 2. 403. 0 15. 43 148.0
28 147.0 2,548. 015. 90 152. 0
29 151.0 2,697. 0 16. 38 156.0
30 155.0 2,850. 016. 85 160.0
31159.0 3, 007. 0 17. 32 164. 0
32 163.0 3, 168. 017. 79 168.0
33 167.0 3, 333. 018. 25 172. 0
34 171.0 3,502. 018. 72 176. 0
35 175.03, 675.0 19. 19180. 0
36 179.0 3,852. 0/19. 65|184. 0
37 183.0 4,033. 020. 12₤188. 0
38 187.0 4, 218. 020. 58192. 0
39 191. 0 4, 407. 0 21. 04 196. 0
682.0 7.65 89.0
768.08.20 93.0
858.0 8.74 97.0
952.0 9.28 101.0
1,050.0 9.81 105.0
1, 152. 0 10. 33|109. 0
1, 258. 0 10. 84 113.0
1, 368. 011. 35 117.0
1, 482. 011. 86【121.0]
1,600. 012. 36 125. 0
1,722. 012. 86 129.0
1,848. 013. 35 133.0
1,978.0 13. 85 137.0
2, 112. 014. 34 141.0
2, 250.0|14. 82|145. O
2, 392. 0 15. 31 149.0
2, 538.015. 79153.0
2, 688. 016. 27 157.0
2,842. 016. 75 161.0
3,000. 017. 23 165. 0
3, 162. 017. 70169.0
3, 328. 018. 18173. 0
3, 498. 0 18. 65177.0
3, 672. 019. 12181. 0
3, 850. 019. 59 185. 0
4, 032. 0|20.06 189. 0
4, 218. 020. 53193. 0
4, 408. 0 21. 00 197.0
4, 602. 0|21. 46|201. 0
4, 800. 021. 93 205. 0
5, 002. 022. 39 209. 0
737.0 7.82 94.0
828.0 8.39] 98.0
923.0 8.95 102.0
1,022. 0 9.50 106. 0
1, 125. 0 10. 04 110.0
1, 232. 0|10. 57 114.0
1, 343. 0 11. 10 118. 0
1, 458. 0 11. 62 122. 0
1, 577. 0 12. 13 126. 0|
1, 700. 0 12. 64 130.0
1, 827.013. 15 134. 0
1, 958. 013. 66 138.0
2, 093. 014. 16 142.0
2, 232. 0)14. 65 146.0
988.0 9.14
1,092.0 9.70
1, 200. 010. 25
1,200.0
1, 312. 010. 79
1,428. 011. 33
1, 548. 0|11.86
1, 672. 0 12. 39
1,800.0 12.91
1, 932. 0 13.42
2,068. 0 13. 94
2, 208. 0 14.44
2. 352, 014. 95
2, 375. 0 15. 15|150.0|2, 500.0|15. 45
2, 522. 015. 64 154. 0
2, 673. 016. 13 158. 0
2, 828. 0 16. 61 162. 0
2, 987. 0 17. 10 166.0
3, 150. 017. 58 170.0
3, 317.0 18. 06 174. 0
3, 488.0 18. 54 178.0
3, 663. 019. 02 182. 0
3, 842. 019. 50 186. 0
4, 025. 019. 97 190. 0
4, 212. 020. 45|194. 0
4, 403. 020. 92 198.0
4, 598. 021. 39 202. 0
4, 797. 021. 86 206. 0
40 195.0 4,600. 0 21. 51 200. 0
5,000. 0 22. 33 210.0
41199. 0 4, 797. 0 21. 97 204. 0
5, 207. 022. 80 214. 0
42 203.0 4,998. 022. 43 208.05, 208. 022. 86 213.0 5, 418. 0|23. 27|218.0
43 207.05, 203. 0 22. 89 212. 0 5, 418. 023. 32 217.0 5,633. 023. 74|222. 0
44 211.0 5, 412. 023. 35 216. 0 5, 632. 0 23. 79 221. 05, 852. 0|24. 20 226. 0
45 215.0 5, 625. 023. 81₤220.0
46 219.0 5,842. 0 24. 27|224. 0
47 223.0 6,063. 0 24. 73 228. 0
48 227.0 6, 288. 0 25. 19232. 0
49 231.0 6, 517.0 25. 64 236.0
5,850.024. 25|225.0
6, 072. 024. 71 229. 0
6, 298. 025. 17233. 0
6, 528. 025. 63 237.0
6, 762. 0 26. 09 241.0
6,075.0 24.67 230. 0
6, 302. 0 25. 14 234. 0
6, 533. 0 25. 60 238. 0
6, 768. 026. 06 242.0
7, 007. 026. 53 246. 0
2,652.0 15.95
2, 808.016. 45
2, 968. 0 16. 94
3, 132. 017. 43
3, 300.0 17.92
3, 472. 0 18.41
3, 648. 0 18. 89
3, 828. 0 19.37
4, 012. 019. 86
4, 200.0 20. 34
4, 392. 020. 82
4, 588. 021. 29
4, 788. 021. 77
4, 992. 0|22. 24
5, 200.0 22.72
5, 412. 023. 19
5, 628. 023. 66
5, 848. 024. 14
6, 072. 024.61
6, 300. 0|25. 08
6, 532. 025. 54
6, 768. 026. 01
7, 008. 026. 48
7, 252. 026. 95
50 235.0 6, 750.0 26. 10240.0
7, 500.0 27. 41
7,000.0 26. 55245.07, 250.0 26.99 250.0
HYDRAULIC TABLES
177
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T T
A
7 T
A
T T
A
902.0
1,012. 0 8. 49 124. 0
1, 128.0 9.12 128.0
1, 248.0 9.74132. 0
1,372. 010. 35136.0
1, 122. 0 8.68 134. 0
1, 248.0 9.34 138. 0
1, 378.0 9.98 142. 0
1, 512. 010. 60 146. 0
11 104.0
8.26 114.0
12 108. 0 1, 008. 0 8.87 118. 0
13 112.0 1, 118.0 9. 46 122. 0
14 116.0 1,232. 010. 05 126.0
1, 500.0 10.94 140.0
1, 632. 0 11. 53 144. 0
1, 768.0 12. 11148. 0
1, 908. 0 12. 68 152.0
15 120.0 1,350. 0 10. 62 130. 0
16 124.0 1, 472. 011. 19 134. 0
17 128.0 1,598. 0 11. 75 138.0
18 132. 0 1, 728. 0 12. 30 142. 0
19136.0 1,862. 0 12. 84 146. 02, 052. 0 13. 24 156. 0
20 140.0 2, 000. 0 13. 38 150.0
21 144. 0 2, 142. 013. 92 154. 0
22 148.0 2, 288. 0 14. 45 158. 0
23 152.0 2, 438. 0 14. 97162. 0
24 156.0 2,592. 0 15. 49 166. 0
25 160.0 2, 750. 0 16. 01 170. 0
26164.0 2, 912. 0 16. 52 174. 0
27 168.0 3, 078. 0 17.03 178.0
28 172.0 3, 248. 0 17. 54 182. 0
29 176.0 3, 422. 0 18. 04 186. 0
30 180.0 3, 600. 0 18. 54 190. 0
31 184.0 3, 782. 0 19. 04/194. 0
32 188.0 3, 968. 0 19. 54 198. 0
33 [192. 0 4, 158. 0[20. 03/202. 0
34196.0 4, 352. 020. 52 206. 0
35 200.0 4, 550. 0 21. 01 210. 0
36 204. 0 4,752. 021. 50|214.0
37 208.0 4, 958. 021. 99 218. 0
38 212.0 5, 168. 0 22. 48 222. 0
39 216.05, 382. 0|22. 96₤226. 0
40 220.05, 600. 0|23. 44|230. 0
41 224.0 5,822. 0|23. 92|234.0
42 228.0 6,048.0 24. 40 238. 0
43 232.0 6, 278. 0 24. 88 242.0
44 236.0 6,512.0 25. 36 246.0
45 240.0 6,750.0 25. 84 250.0
46 244.0 6, 992. 0 26. 31 254.0
47 248.0 7, 238. 0 26. 79 258.0
48 252.0 7, 488. 0 27. 26 262. 0
49 256.0 7,742.0 27.74 266.0
2, 200. 013. 80 160.0
2, 352. 014. 35 164.0
2, 508. 0 14. 89 168.0
2, 668. 0 15. 43 172. 0
2, 832. 015. 97 176. 0
3, 000. 0 16. 50 180.0
3, 172. 017. 03 184. 0
3, 348. 0 17.55 188. 0
3, 528. 0 18. 07192. 0
3, 712. 018. 59 196. 0
3, 900. 0 19. 10 200. 0
4, 092. 0 19. 61 204. 0
4, 288. 0 20. 12 208. 0
4, 488. 0[20. 63[212. 0|
4, 692. 021. 13 216. 0
4, 900. 021. 63 220. 0
5, 112. 0|22. 13224. 0
5, 328. 0 22. 63 228. 0
5, 548. 0 23. 12 232. 0
5, 772. 023. 62236.0
6, 000. 024. 11/240. 0
6, 232. 024. 60|244. 0
6, 468. 0 25. 09 248.0
6, 708. 0 25. 57 252. 0
6, 952. 0 26. 06 256.0
1, 650.0 11. 22 150.0
1, 792. 011. 82 154. 0
1, 938. 0 12. 42 158. 0
2,088.0 13. 01 162. 0
2, 242. 0[13. 59 166.0
2, 400.0 14. 16 170.0
2, 562. 0 14. 73 174.0
2, 728. 0 15. 29 178. 0
2, 898. 0 15. 85 182. 0
3, 072. 0 16. 40 186. 0
3, 250.0 16. 94 190. 0
3, 432. 0 17. 49 194. 0
3, 618. 0 18. 02 198. 0
3, 808. 0 18. 56 202. 0
4, 002. 0 19. 09 206. 0
4, 200. 0 19. 61 210. 0
4, 402. 020. 13 214. 0
4, 608. 020. 65 218. 0
4,818. 0|21. 17|222. 0|
5,032. 0[21. 68|226. 0
5, 250. 0 22. 20230. 0
5, 472. 0|22. 71|234. 0|
5, 698. 0 23. 21 238. 0
5, 928. 0 23. 72 242. 0
6, 162. 0|24. 22 246.0
1,232.0 8.85
1, 368.0 9.52
1, 508. 0 10. 18
1, 652. 0 10. 82
1,800.0 11.46
1, 952. 012.08
2, 108. 0 12.70
2, 268.0 13. 30
2, 432. 0 13. 90
2,600.0 14.49
2, 772. 015. 07.
2, 948. 0 15. 65
3, 128.016. 22
3, 312. 0 16.78
3, 500.0 17.34
3, 692. 0 17.90
3,888.0 18.45
4, 088. 018. 99
4, 292. 0 19. 54
4, 500.0 20.07
4, 712. 0 20.61
4, 928. 0 21. 14
5, 148. 021.67
5, 372. 0|22. 19
5, 600.0 22.72
5, 832. 0|23. 24
6, 068. 023. 75
6, 308. 0 24. 27
6, 552. 024. 78
6, 400. 024. 72 250.0 6, 800. 025. 29
6, 642. 0 25. 22 254. 07, 052. 025.80
6, 888. 0 25. 72 258. 0 7, 308. 026. 30
7, 138. 0 26. 21 262. 07, 568. 0 26. 81
7, 392. 026. 71 266. 0 7, 832.0 27.31
7, 200.0 26. 54 260. 07, 650.0 27. 20 270.0
7, 452. 0 27.03 264. 0 7, 912. 0 27. 69 274.0
7, 708. 0 27. 51 268.0 8, 178. 0 28. 18 278. 0
7, 968. 027.99 272.0 8, 448. 0 28. 67 282. 0
8, 232. 028. 47 276.0 8, 722.0 29. 16286.0
8, 100.0 27.81
8, 372. 028. 31
8, 648. 028. 81
8, 928. 0 29. 30
9, 212. 0 29. 80
50 260.0 8,000. 028. 21 270.0
9, 500. 030. 29
8, 500.0 28. 95 280.0 9, 000. 0 29. 64 290.0
178
HYDRAULIC TABLES
Table 10.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued
T, and

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
Τ
A
T
A
T
A
T
11 144.0 1,342.0 9.00 154.0
12 148.0 1, 488.0 9. 68 158.0
13 152. 0 1,638. 0|10. 36 162. 0|
14 156.0 1,792. 0 11. 02 166. 0]
15 160.0 1,950. 0 11. 67 170.0
16164.0 2, 112. 0 12. 31 174. 0
17 168.0 2, 278. 0 12. 94 178. 0
18 172.0 2, 448. 0 13. 56 182.0
19 176.0 2, 622. 0|14. 18186. 0
20 |180.0 2,800. 0|14. 78|190. 0|
21184. 02, 982. 0 15. 38 194. 0
22 188.03, 168. 0 15. 97 198. 0
23 192.0 3, 358. 0 16. 55 202. 0
24 196.0 3, 552. 0 17. 13 206. 0
25 200.0 3,750. 0 17. 71 210. 0
26 204.03, 952. 0 18. 27 214. 0
27 208. 0 4, 158. 0 18. 84218. 0
28 212.0 4, 368. 0 19. 39|222. 0|
29 216.0 4, 582. 0 19. 95 226. 0
1, 452. 0 9. 12 164. 0
1, 608. 0 9.82 168.0
1, 768. 0|10. 52|172. 0
1, 932. 011. 19 176.0
1, 562. 0 9.23 174. 0
1, 728. 0 9.95 178.0
1,898. 0 10. 65|182. 0|
2, 072. 0|11. 35|186. 0|
1, 672.0 9.33
1,848.0 10.06
2, 028. 0|10. 78
2, 212. 0|11. 48
2, 100.0 11.86 180.02, 250. 0 12. 03190. 0
2, 272. 012. 51184. 0
2, 448. 0 13. 16188.0
2, 628. 0 13. 80 192. 0
2, 812. 0|14. 42|196. 0|
2, 400.0 12. 18
2, 432. 0 12. 70 194. 0 2, 592. 012. 86
2, 618. 0 13. 36198. 02, 788.0 13. 53
2, 808. 0 14. 01202. 0 2, 988. 0 14. 19
3, 002. 0 14. 65|206. 0] 3, 192. 0|14. 85
3, 000. 0|15. 04₤200. 0|
3, 192. 015. 65 204. 0
3, 388. 016. 26 208. 0
3, 588. 0 16. 86 212. 0
3, 792. 017. 45 216. 0
4, 000. 018. 03 220. 0
4, 212. 0 18. 61 224. 0
4, 428. 0|19. 19|228. 0
4, 648. 0 19.76|232. 0
4, 872. 0 20. 33 236. 0
5, 100. 020.89 240.0
30 220.0 4,800. 0 20. 50 230. 0
31224.0 5,022. 021. 04 234. 05, 332. 021. 44 244. 0
32 228.0 5,248. 021. 59 238.0
33 232.0 5, 478. 0 22. 13 242.0
34 236.0 5,712. 022. 66 246. 0
35 240.0 5,950.0 23. 19250. 0
36 244. 0 6, 192. 0 23. 72 254. 0
37 248.0 6, 438. 0 24. 25 258. 0
38 252.0 6, 688. 0 24. 78 262.0
39 256.0 6, 942. 0 25. 30 266. 0
?
40 260.0 7,200.0 25. 82 270.0
41 264.0 7, 462. 0 26. 33 274.0
42 268.0 7, 728. 0 26. 85 278.0
43 272.0 7,998. 0 27. 36 282. 0
44 276.0 8, 272.0 27.87 286.0
5, 568. 022. 00248.0
5,808.0 22. 55|252. 0|
6, 052. 023. 09|256.0
6, 300. 023. 64 260. 0
6, 552. 024. 18264.0
6, 808. 024. 71268.0
7, 068. 0 25. 25 272.0
7, 332. 0 25. 78 276. 0
7, 600.0 26. 31280. 0
7,872.0 26.83|284.0
8, 148.0 27. 36|288. 0]
8, 428. 0 27. 88 292.0
8, 712. 0 28. 40 296. 0
3, 200. 0|15. 28|210. 0
3, 402. 015. 90214. 0
3, 608. 0 16. 52 218. 0
3, 818. 017. 13222. 0
4, 032. 0 17.74 226. 0
4, 250. 0 18. 33 230. 0
4, 472. 0 18. 93 234. 0
4, 698. 0 19. 51 238. 0❘
4, 928. 0|20. 10|242. 0|
5, 162.0 20. 67 246.0
5, 400. 0 21. 25 250.0
5, 642. 0 21. 81 254.0
5,888.0 22. 38 258. 0
6, 138.0 22. 94 262.0
6, 392. 023. 50 266.0
6, 650.0 24. 05 270. 0
6, 912. 0 24.60 274.0
7, 178. 025. 14 278. 0
7, 448. 025. 69|282.0
7, 722. 0 26. 23 286. 0
8, 000. 0 26. 77 290. 0
8, 282. 027.30 294. 0
8, 568.0 27.83 298.0
8,858. 0 28. 36 302. 0
9, 152. 0 28. 89306. 0
3,400. 015. 49
3,612. 016. 13
3, 828. 0 16. 76
4, 048. 0 17. 38
4, 272. 018. 00
4, 500: 018. 61
4, 732. 0 19. 21
4, 968. 0 19. 81
5, 208. 020. 41
5, 452. 0 20. 99
5, 700.0 21. 58
5, 952. 0 22. 16
6, 208. 022. 73
6, 468. 023. 30
6, 732.0 23.87
7,000. 0 24. 43
7, 272. 0 24.99
7, 548. 0 25. 55
7,828.0 26. 10
8, 112. 0 26. 65
8, 400.0 27. 19
8, 692. 0 27. 74
8, 988. 0 28. 28
9, 288. 028. 82
9, 592. 029. 35
45 280.0 8, 550. 0 28. 38 290. 0 9, 000. 028. 92300. 0 9, 450.0 29.42310.0 9,900.0 29.89
46 284.0 8,832. 0 28. 89 294. 0 9, 292. 0 29. 43304. 0 9, 752. 029. 94314. 010, 212. 030. 42
47 288.0 9, 118. 0 29. 39 298. 0 9, 588. 0 29. 94308. 010, 058. 030. 46 318. 0 10, 528. 030. 95
48 292.0 9, 408. 0 29.90 302. 0 9,888.030. 46312. 010, 368. 030. 98322. 010, 848. 031. 47
49 296. 0 9, 702. 030. 40 306. 010, 192. 030. 97316. 0 10, 682. 031. 50 326. 011, 172. 032.00
50 300.0 10,000. 030. 90 310. 010, 500. 031. 47 320. 011, 000. 032. 01330. 011, 500. 032. 52
HYDRAULIC TABLES
179
Table 10.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1—Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
Τ
A
Τ
A
T
T
A
11 184.0 1, 782. 0 9. 42|194. 0
12188.0 1,968. 0|10. 16|198. 0
13192.0 2, 158. 0 10.89 202. 0
14196.02, 352. 011. 61 206. 0
15200.0 2, 550. 0 12. 31 210.0
16 204.0 2,752. 0|13. 01|214. 0
17 208.0 2, 958. 0 13. 69 218. 0
18 212.03, 168. 0|14. 37|222.0
19 216.0 3,382. 0|15. 03 226. 0
20 220.0 3,600.0 15. 69 230. 0
21 224.0 3, 822. 0 16. 34 234. 0
22 228.0 4, 048. 0 16. 98 238. 0
23 232. 0 4, 278.0 17.62 242. 0
24 236.0 4, 512. 0 18. 24 246. 0
25 240.0 4,750. 018. 86 250.0
26 244.0 4, 992. 0 19. 48 251. 0
27 248.0 5, 238. 0 20. 09258.0
28 252.0 5, 488. 0 20. 69 262.0
29 256.0 5,742. 0 21. 29 266.0
30 260.0 6,000. 0 21. 88 270.0
31 264.0 6, 262. Q 22. 47 274. 0
32 268.0 6, 528. 023. 06 278. 0
33 272.0 6, 798. 0|23. 64|282. 0
34 276.0 7, 072. 024. 21 286. 0
35 280.0 7, 350. 024. 79 290.0
36 284.0 7, 632. 025. 36 294.0
37 288.0 7, 918. 0 25. 92 298. 0
38 292.0 8, 208. 0 26. 48 302. 0
39 296.0 8, 502. 0 27.04 306. 0
1,892.0 9.50 204. 02, 002.0 9. 57 214. 02, 112.0 9.64
2,088.0 10. 25 208. 02, 208. 0|10. 33|218. 0| 2, 328. 0|10. 41
2, 288. 0 10. 99 212.0 2, 418. 011.08 222.0 2,548.0 11. 17
2, 492. 011. 72 216. 0 2, 632. 0 11. 82 226. 0 2, 772.0|11.92
2,850.0 12. 55|230. 0 3,000.012. 65
3, 072. 0 13. 27|234. 0 3, 232.0 13. 38
3, 298.0 13. 97238. 0 3, 468. 0 14. 10
3, 528. 014. 67|242.0|||3, 708. 0 14. 80
3,762. 0|15. 36|246. 0 3, 952. 015. 50
2, 700. 012. 44 220.0
2, 912. 0 13. 14224. 0
3, 128. 0 13. 84 228. 0
3, 348. 014. 53|232. 0
3, 572. 0 15. 20 236.0
3,800.0 15.87 240.0
4, 032. 016. 53 244. 0
4, 268. 017. 18 248.0
4, 508. 017. 83 252.0
4, 752. 0 18. 47 256. 0
4, 000. 0 16.04 250. 0
4, 242. 0 16. 71 254. 0
4, 488.0 17.37 258. 0
4,738.018. 02262. 0
4, 992. 0 18. 67 266.0
5,000.0 19. 10 260.05, 250.0|19. 32|270. 0
5, 252.0 19. 72 264. 0
5, 508.0 20. 34 268. 0
5, 768.0 20. 96 272.0
6, 032. 021. 57 276.0
6, 300.0 22. 17 280. 0
6, 572.0 22. 77 284. 0
6, 848. 023. 36 288. 0
7, 128.0 23. 95|292. 0
7, 412. 024. 54 296. 0
7, 700.0 25. 12300.0
7, 992. 0 25. 70304. 0
8, 288. 0 26. 27 308. 0
8, 588. 026. 84312. 0
8, 892. 027.41316. 0
4, 200. 016. 19
4, 452.0 16. 87
4, 708.0 17. 54
4, 968.0 18. 21
5,232.0 18. 87
5, 500.0 19.52
5, 512. 0 19.95 274.05, 772.0 20. 16
5, 778. 0 20. 58 278. 0 6, 048. 020.80
6, 048. 0 21. 20 282.0 6, 328. 0 21. 43
6, 322. 0 21. 82 286. 0 6, 612. 0 22. 06
6, 600. 0 22. 44 290.0 6, 900.0 22. 69
6, 882. 023.04 294. 07, 192. 023. 30
7, 168.0 23.65 298.0 7, 488.0 23. 92
7, 458.0 24. 25 302. 0 7, 788.0 24. 52
7, 752.0 24.84 306.0 8, 092. 0 25. 13
8,050.0 25. 431310. 0
8, 352. 0 26. 02 314.0
8, 658. 0 26. 60318.0
8, 968. 0 27. 18322.0
9, 282. 0 27. 76326. 0
8, 400.0 25. 73
8, 712. 0 26. 32
9, 028.0 26. 91
9, 348. 0 27.50
9, 672.0 28. 08
40 300.0 8,800. 0 27. 60 310. 0 9, 200.0 27.97|320.0 9, 600. 0 28. 33 330. 010, 000. 028.66
41 304. 0 9, 102. 0 28. 15314. 0 9, 512. 0 28. 53 324. 0 9, 922. 0 28. 90 334. 010, 332. 0 29. 24
42 308.0 9, 408. 0 28. 70 318. 0 9, 828. 029. 09 328. 0 10, 248. 0 29. 46 338. 0 10, 668. 029.81
43 312.0 9, 718. 0 29. 24 322. 010, 148. 0 29. 65 332. 0 10, 578. 030. 03 342. 011, 008. 030. 38
44 316.010, 032. 0 29. 79|326. 010, 472. 030. 20 336. 0 10, 912. 030. 59|346. 011, 352. 030. 95
45 320.0 10, 350. 030. 33330. 010, 800. 030. 75340. 011, 250. 031. 14 350. 0 11, 700.031. 52
46 324. 010, 672. 030. 87 334. 011, 132. 031. 29344. 0 11, 592. 031. 70 354. 012, 052. 0₤32. 08
47 328. 0 10, 998. 031. 41 338. 0|11, 468. 031. 84 348. 0 11, 938.0 32. 25 358. 0 12, 408. 032. 64
48 332.011, 328. 031. 94|342. 011, 808. 0|32. 38|352. 012, 288.0 32. 80 362. 0 12, 768. 033. 19
49 336. 011, 662. 0 32. 47 346. 0 12, 152. 0 32. 92 356. 012, 642. 033. 34 366. 0 13, 132. 033.75
50 340.012, 000. 033
033.00 350. 0 12, 500. 033. 46 360. 013, 000. 0 33. 89 370. 013, 500. 0 34. 30
180
HYDRAULIC TABLES
Table 10.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2 to 1-Continued

Bottom width
180 feet
Depth
Bottom width
190 feet
Bottom width
200 feet
T
A
T
A
T
T
A
T
28
=2RE PU=== 22222 22222 87*** 88088 ====* ****8 8
11
224.0
2, 222. 0
9.69
234.0
2, 332.0
9.75
244.0
2,442.0
9.80
12
228.0
2,448. 0
10.48
238.0
2,568. 0
2, 568.0
10. 54
10.54
248. 0
248.0
2,688. 0
10.60
13 232.0
2,678.0
11. 25
242.0
2,808. 0
11.32
11.32
252.0
252.0
2,938.0
2, 938.0
11. 38
14 236.0 2,912.0
15 240.0 3,150.0
12.00
246.0 3,052, 0
12.08
256. 0
256.0
3, 192, 0
12. 15
12.75
250.0 3,300. 0
12.84
260. 0
3,450.0
12. 92
16
244.0
3,392.0
13.48
254.0
3,552, 0
13.58
264. 0
3, 712.0
13. 67
17
248.0 3,638. 0
14. 21
258.0
3,808. 0
14.31
268.0
3,978.0
14.41
18
252.0
3,888.0
14.93
262.0
4,068. 0
15.04
272. 0]
4, 248.0
15. 14
19
256. 0
4, 142.0
15.63
266.0
4, 332. 0
15.75
276.0
4, 522.0
15.87
20
260.0
4,400. 0 16.33
270.0
4,600. 0
16.46
280.0
4,800.0
16. 58
21
264.0
4,662.0|| 17.02
274.0
4,872. 0
17. 16
284.0
5, 082.0
17. 29
268.0 4,928.0 17.70
278.0
5, 148. 0
17.85
288.0
5, 368.0
17.99
23
272.0
5, 198.0
18.38
282.0
5,428. 0
18.53
292.0
5,658.0
18. 68
24
276.05, 472.0
19.04
286.0
5,712. 0
19. 21
296.0
5,952. O
19.37
25
280.0 5,750.0 19.71
290.0
6,000. 0
6,000.0
19.88
300.0
6, 250.0
20. 04
26
284.0
6,032.0 20.36
294.0
6, 292. 0
20.54
304. 0
6, 552.0
20. 72
27
288.0 6, 318.0 21.01
298.0
6, 588. 0
21.20
308.0
6,858.0
21.38
292.0
6,608.0 21.65
302.0
6, 888. 0
21.85
312.0
7, 168.0
22.04
>
29 296.0 6,902.0| |22, 29
306.0
7,192. 0
22.50
316.0
316. 0
7, 482. 0
7, 482.0
22. 69
30
300.0 7, 200.0| |22.92
310.0
7,500. 0
23.14
320. 0
7,800.0
23.34
31
304.0
7,502. 0
23.54
314.0
7,812. 0
23.77
324. 0
8, 122.0
23.98
32
308.0 7,808. 0
24. 17
318.0
8, 128. 0
24.40
328. 0
8, 448.0
24.62
33
312.08, 118. 0
24.78
322.0
8, 448. 0
25.03
332. 0
8,778.0
25. 25
34
316.0
8, 432.0
25.39
326.0 8, 772.0
25.65
336.0
9, 112.0
25.88
35
320.0
8,750.0
26.00
330.0
9, 100.0
26. 26
340.0
9,450.0
26. 51
36
324.0 9,072, 0|
26.60
334.0
9, 432. 0
26.87
344. 0
9, 792.0
27. 12
37
328.0
9,398.0 27.20
338.0 9, 768.0
27.48
348.0 10, 138.0|_ 27.74
38
332.0] 9,728.0
27.80
342.0 10, 108.0
28.08
352.0 10, 488.0
28.35
39
336.0 10, 062.0
28.39
346.0 10, 452. 0
28.68
356.0 10, 842. 0
28.96
40
340.0 10, 400.0
28.98
350.0 10,800.0
29.28
360.0 11, 200.0
29.56
41
344. 0 10, 742.0
29.56
354.0 11, 152.0
29.87
364. 0
11, 562.0
30.16
42
348.0 11,088.0
30.14|
358.0 11, 508.0
30.46
368. 0
11, 928. 0
30.76
43
352.0 11, 438.0
30.72
362.0 11,868.0 31.04
372.0
12, 298.0
31.35
44
356.0 11, 792.0
31.30
366.0 12, 232.0||||
31.63]
376. 0
12, 672.0]
31.94
45
360.0) 12, 150.0
31.87
370.0) 12, 600. O
32.20
380.0 13,050.0
32.52
46
364. 0 12, 512.0
32.44
374.0|| 12, 972.0
32.78
384. 0|
13, 432.0
33.11
47
368.0 12, 878.0
33.00
378.0 13, 348.0
33.35
388.0 13, 818.0
33.69
48
372.0 13, 248.0 33.57
382.0 13, 728.0
33.92
392.0 14, 208.0
34.26
49
376.0 13, 622.0 34.13
386.0 14, 112.0
34.49
396.0
14, 602. 0
34, 84
50 380.0 14,000.0 34.69
390.0 14, 500. 0
35.06 400.0 15,000.0
35. 41
HYDRAULIC TABLES
181
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
→
T
A
T
A
T
E.
A
0.2
3.0
0.50 0.16
4.0
0.70 0.17
5. 0
0.90 0.18 6.0
1.10 0.18
0.4 4.0
1.20.29
5.0
1.60 .31
6.0
2.00 .32
7.0
2.40 .34
0.6
5.0
2.10.40
6.0
2.70 .43
7.0
3.30 .46
8.0
3.90 .47
0.8
6.0
3.20 .51
7.0
4.00 .55 8.0
4.80.58 9.0
5.60 .60
1.0 7.0
4.50
. 61
8.0
1.2 8.0
1.4 9.0
6.00
.71 9.0
1.6 10.0
1.8 11.0
7.70 .81 10.0
9.60 .90 11.0
11.70 1.00 12.0
5.50
7.20 .76 10.0
9.10 .86 11.0
11.20 .96 12.0
13.50 1.06 13.0
.66 9.0
·
6.50 69 10.0
8.40.80 11.0
10.50 .91 12.0|
12.80 1.01 13.0
15.30 1.12] 14. 0
7.50 .72
9.60 .84
11.90 .95
14.40 1.06
17.10 1.16
2.0
12.0
2.2
13.0
14.00 1.10 13.0
16.50 1.19 14.0
16.00 1.16| 14.0
2.4 14.0
2.6 15.0
19.20 1.29 15.0
22.10 1.38 16.0
18.70 1.26| 15.0
21.60 1.36 16.0
18.00 1.22 15.0
20.90 1.32] 16.0
24.00 1.42 17.0
20.00 1.27
23.10 1.37
26.40 1.47
2.8 16.0
25.20 1.48 17.0
24.70 1.45 17.0
28.00 1.55 18.0
27.30 1.52 18.0
30.80 1.61 19.0
29.90 1.57
33.60 1.67
3.0 17.0
28.50 1.57 18.0
3.2 18.0
3.4 19.0
32.00 1.66| 19.0
31.50 1.64 19.0
35.20 1.74 20.0
35.70 1.76] 20.0
3.6 20.0
39.60 1.85| 21.0
3.8 21.0
43.70 1.95 22.0
39. 10 1.83 21.0
43.20 1.93 22.0
47.50 2.02 23.0
34.50 1.71 20.0
38.40 1.81 21.0
42.50 1.91] 22.0
46.80 2.00 23.0
51.30 2.10 24.0
37.50 1.77
41.60 1.87
45.90 1.97
50.40 2.07
55.10 2.16
4.0 22.0
48.00 2.04 23.0
4.2
23.0
52.50 2.13 24.0
4.4 24.0
57.20 2.23 25.0
52.00 2.12 24.0
56.70 2.21 25.0
61.60 2.31 26.0
56.00 2.19 25.0
60.90 2.29 26.0
66.00 2.38 27.0
60.00 2.26
65.10 2.36
70.40 2.45
4.6 25.0
62.10 2.32 26.0
66.70 2.40 27.0
71.30 2.48 28.0
75.90 2.55
4.8 26.0
67.20 2.41| 27.0
72.00 2.50 28.0
76.80 2.57 29.0
81.60 2.65
5.0 27.0
72.50 2.51 28.0
77.50 2.59 29.0
82.50 2.67 30.0
87.50 2.74
5.2 28.0
78.00 2.60 29.0
83.20 2.68 30.0
88.40 2.76 31.0
93.60 2.84
5.4 29.0
5.6 30.0
5.8 31.0
83.70 2.69 30.0
89.60 2.79 31.0
95.70 2.88 32.0
89.10 2.78 31.0
94.50 2.86] 32.0
99.90 2.93
95.20 2.87 32.0
101.50 2.96 33.0
100.80 2.95| 33. 0
107.30 3.05| 34.0
106.40 3.03
113.10 3.12
6.0
32.0
102.00 2.97 33.0
6.2
33.0
108.50 3.07| 34.0
6.4
34.0
115.20 3.16 35.0
6.6 35.0
6.8 36.0
122.10 3.25 36.0
129.20 3.35 37.0
108.00 3.06 34.0
114.70 3.15 35.0
121.60 3.25 36.0
128.70 3.34 37.0
136.00 3.43 38.0
114.00 3.14 35.0
120.90 3.23 36.0
128.00 3.33 37.0
135.30 3.42| 38.0)
142.80 3.52| 39.0
120.00 3.22
127.10 3.31
134.40 3.41
141.90 3.50
149.60 3.59
7.0 37.0
7.5 39.5
8.0 42.0
8.5 44.5
9.0 47.0
136.50 3.44 38.0
155.62 3.67 40.5
176.00 3.90 43.0
176.00 3.90 43.0
197.62 4.14 45.5
220.50 4.37 48.0
9.5
49.5
244.62 4.60 50.5
10.0
52.0
270.00 4.83| 53.0
254.12 4.69 51.5
280.00 4.93 54.0
143.50 3.53 39.0
163. 12 3.76 41.5
184.00 3.99 44.0
206. 12 4.23 46.5
229.50 4.46 49.0
150.50 3.61 40.0
170.62 3.84 42.5
192.00 4.08 45.0
214.62 4. 31 47.5
238. 50 4. 55 50.0
263.62 4.78| 52. 5
290.00 5.01 55. 0
157.50 3.69
178.12 3.92
273. 12 4.86
300.00 5.10
200.00 4.16
223. 12 4.39
247.50 4.63
10.5
328. 12 5.33
54.5
317.62 5.25 57.5
296.62 5.07 55.5
307. 12 5. 16 56.5
182
HYDRAULIC TABLES
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1—Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
T
A
T
A
T
A
T
0.2
7.0
1.30 0.18
8.0
0.4
8.0
2.80
34
9.0
1.50 0.19
3.20 .35 10.0
9.0
1.70 0.19 10.0
1.90 0.19
3.60 .35 11.0
4.00 .36
0.6 9.0
4.50
.49 10.0
5. 10.50 11.0
5.70 .51 12.0
6.30 .52
0.8 10.0
6.40
62 11.0
7.20 .64 12.0
8.00
.65 13.0
8.80 .66
1.0
11.0 8.50
•
1.2 12.0
1.4 13.0
10.80
1.6
14.0
75 12.0
87 13.0
13.30 .98 14.0
16.00 1.09 15.0
9.50 77 13.0
1.8
15.0
18.90 1.20 16.0
12.00 .89 14.0
14.70 1.01 15.0
17.60 1.13 16.0
20.70 1.24 17.0
10.50
13. 20
78 14.0
•
.91 15.0
16. 10 1.04 16.0
19.20 1.16 17.0
22.50 1.27 18.0
11.50 .80
14.40.93
17.50 1.06
20.80 1.18
24.30 1,30
2.0
16.0
2. 2
17.0
22.00 1.31 17.0
25.30 1.42 18.0
24.00 1.35 18.0
27.50 1.46 19.0
2.4
18.0
28.80 1.52 19.0
31.20 1.57 20.0
26.00 1.39 19.0
29.70 1.50 20.0
33.60 1.61 21.0
28.00 1.42
2.6
19.0
32.50 1.62 20.0
2.8 20.0
36.40 1.73 21.0
35.10 1.67 21.0
39.20 1.78 22.0
37.70 1.71 22.0
42.00 1.82 23.0
31.90 1.53
36.00 1.64
40.30 1.75
44.80 1.86
3.0
21.0
3.2 22.0
40.50 1.83 22.0
44.80 1.93 23.0
43.50 1.88 23.0|
46.50 1.93 24.0
49.50 1.97
48.00 1.98 24.0
51.20 2.03 25.0
54.40 2.07
3.4 23.0
49.30 2.03 24.0
52.70 2.08] 25.0|
56.10 2.13 26.0
59.50 2.18
3.6
24.0
3.8
25.0
54.00 2.13 25.0
58.90 2.23 26.0
57.60 2.18 26.0
61.20 2.23 27.0
64.80 2.28
62.70 2.28 27.0
66.50 2.34| 28.0
70.30 2.39
4.0 26.0
64.00 2.32 27.0
68.00 2.38 28.0
4.2 27.0
69.30 2.42 28.0
73.50 2.48 29.0
72.00 2.44 29.0
77.70 2.54 30.0
76.00 2.49
81.90 2.59
4.4 28.0
74.80 2.52 29.0
79.20 2.58 30.0
83.60 2.64 31.0
4.6 29.0
4.8 30.0
80.50 2.62] 30.0|
85.10 2.68 31.0
86.40 2.71 31.0
91.20 2.78| 32.0
89.70 2.74 32.0
96.00 2.84| 33.0
88.00 2.69
94.30 2.79
100.80 2.89
5.0 31.0
92.50 2.81| 32.0
5.2
32.0
98.80 2.91 33.0
5.4
33.0
105.30 3.00 34.0
5.6
34.0
5.8 35.0
112.00 3.10 35.0
118.90 3.19 36.0
97.50 2.87| 33.0]
104.00 2.97 34.0
110.70 3.07 35.0
117.60 3.16 36.0
124.70 3.26 37.0
102.50 2.93 34.0
109.20 3.03 35.0
107.50 2.99
114.40 3.09
116.10 3.13 36. 0
121.50 3.19
123.20 3.23 37.0
128.80 3.29
130.50 3.33 38.0
136.30 3.39
6.0
36.0
6.2 37.0
6.4 38.0
6.6 39.0
6.8 40.0
126.00 3.29] 37.0
133.30 3.38 38.0
132.00 3.36] 38.0
140.80 3.48 39.0
148.50 3.57 40.0
156.40 3.67 41.0
139.50 3.45 39.0
147.20 3.55 40.0
155.10 3.65 41.0
163.20 3.74 42.0
7.0 41.0
7.5 43.5
8.0 46.0
164.50 3.76| 42.0
185.62 4.00 44, 5
208.00 4.24 47.0
8.5 48.5
9.0 51.0
9.5 53.5
10.0❘ 56.0
231.62 4.47 49.5
256.50 4.71 52.0
171.50 3.84 43.0
193. 12 4.08 45.5
216.00 4.31 48. 0
240.12 4. 55 50.5
265.50 4.79 53.0
178.50 3.91 44.0
200.62 4.15] 46.5
224.00 4.39 49.0
248.62 4.62 51.5
274.50 4.86 54.0
144.00 3.49
151.90 3.58
160.00 3.68
168.30 3.78
176.80 3.88
185.50 3.97
208. 12 4.21
232.00 4.45
257.12 4.69
283.50 4.93
138.00 3.42 39.0
145.70 3.52| 40.0|
153.60 3.62 41.0
161.70 3.71 42.0
170.00 3.81 43.0
282.62 4.94 54.5
310.00 5.18 57.0
292.12 5.02 55.5
320.00 5.26 58.0
301.62 5.10 56.5
330.00 5.34 59.0
311.12 5. 17
340.00 5.41
10.5 58.5
370.12 5.65
338.62 5.41 59.5
359.62 5.57 61.5
349. 12 5.49 60.5
HYDRAULIC TABLES
183
T, and
Table 11.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
Τ
A
T
A
Τ
A
g T
Α
0.2 11.0
0.4 12.0
2.10 0.19 13.0
4.40 .36 14.0
0.6
13.0
6.90 .52 15.0
0.8 14.0
9.60 .67 16.0
8.10
11.20
2.50 0.19 15.0
5.20 .37 16.0
.53 17.0
.69 18.0
2.90 0.19 17.0
6.00 .37 18.0
3.30 0.19
6.80 .37
9.30
12.80
.54 19.0
10.50 .55
.70 20.0
14.40 .71
1. 0
1.2
1.4
1.6
1.8
0246 ∞
15.0 12.50 .81 17.0
16.0 15.60 .95 18.0
17.0 18.90 1.08 19.0
18.0 22.40 1.20| 20.0|
19.0
14.50
.83| 19.0
16.50 .85 21.0
18.50 .87
26.10 1.33 21.0
18.00 .97 20.0
21.70 1.11 21.0
25.60 1.24 22.0
29.70 1.37 23.0
20.40 1.00 22.0
22.80 1.02
24.50 1.14 23.0
28.80 1.27 24.0
33.30 1.41 25.0
27.30 1.16
32.00 1.30
36.90 1.44
2.0 20.0 30.00 1.44 22.0
34.00 1.49 24.0
38.00 1.53 26.0
42.00 1.57
2.2 21.0
34.10 1.56 23.0
38.50 1.61 25.0
42.90 1.66 27.0
47.30 1.70
2.4 22.0
2.6 23.0
38.40 1.68 24.0
42.90 1.791 25.0
43.20 1.73 26.0
48.00 1.78 28.0
52.80 1.83
48.10 1.85 27.0
2.8
24.0
47.60 1.90 26.0
53.20 1.96 28.0
53.30 1.90 29.0
58.80 2.02 30.0
58.50 1.95
64.40 2.07
3.0
25.0
52.50 2.01 27.0
3.2 26.0
57.60 2.12 28.0
3.4 27.0
3.6 28.0
3.8 29.0
4.0 30.0
4.2
31.0
62.90 2.22 29.0
68.40 2.33 30.0
74.10 2.43 31.0
80.00 2.54 32.0
86.10 2.64 33.0
58.50 2.08 29.0
64.00 2.19 30.0
69.70 2.30 31.0
75.60 2.41| 32.0]
81.70 2.52 33.0
64.50 2.14 31.0
70.40 2.25 32.0
76.50 2.37 33.0
82.80 2.48 34.0
89.30 2.59 35.0
70.50 2.19
76.80 2.31
83.30 2.43
90.00 2.54
96.90 2.66
4. 4
4.6 33.0
4.8
34.0
32.0
92.40 2.74 34.0
88.00 2.62 34.0
94.50 2.73 35.0
101.20 2.84 36.0
98.90 2.84 35.0
108.10 2.94 37.0
96.00 2.70 36.0
102.90 2.81 37.0
110.00 2.92 38.0
117.30 3.03 39.0
104.00 2.77
111.30 2.88
118.80 2.99
105.60 2.95 36.0
115.20 3.04 38. 0
115.20 3.04 38.0
124.80 3.13] 40. 0
126.50 3.10
134.40 3.21
5.0 35.0 112.50 3.05 37.0
122.50 3.15 39.0
5.2 36.0
119.60 3.15 38.0
5.4
37.0
37.0
5.6 38.0
5.8
39.0
126.90 3.25 39.0
134.40 3.35 40.0
142.10 3.45] 41.0
6.0 40.0
6.2 41.0
150.00 3.55 42. 0
158.10 3.64 43.0
6.4 42.0
6.6 43.0
6.8 44.0
166.40 3.74 44.0
174.90 3.84 45.0
183.60 3.94 46.0
130.00 3.25 40.0
137.70 3.35 41.0
145.60 3.45 42.0
153.70| 3.56| 43.0
162.00 3.66 44.0
170.50 3.76| 45.0]
179.20 3.86 46. 0
188.10 3.96 47.0
197.20 4.06 48.0
132.50 3.24 41.0
140.40 3.34 42.0
148.50 3.45 43.0
156.80 3.55 44.0
165.30| 3.65| 45.0
174.00 3.76 46.0
182.90 3.86 47.0
192.00 3.96 48.0
201.30] 4.06| 49.0
210.80 4.16 50.0
142, 50] 3.32
150.80 3.43
159. 30| 3.53
168.00 3.64
176.90 3.75
186.00 3.85
195.30 3.95
204.80 4.06
214.50 4.16
224.40 4.26
7.0 45.0
192.50 4.04| 47.0|
7.5 47.5
215.62 4.28 49.5
8.0 50.0
240.00 4.52 52.0
8.5 52.5
9.0 55.0
265.62 4.76 54. 5
292.50 5.00 57.0
206.50 4.16 49.0
230.62 4.40 51.5
256.00 4.65 54.0
282.62 4.89 56.5
310.50 5. 14
220.50 4.27 51.0
234.50 4.37
245.62 4.52 53.5
260.62 4.62
272.00 4.77 56.0
288.00 4.87
299.62 5.01 58.5
316.62 5.13
59.0
328.50 5.26 61.0
346.50 5.37
9.5 57.5 320.62 5.24 59.5
10.0 60.0 350.00 5.48 62.0
339.62 5.38 61.5
370.00 5.62 64.0
358.62 5.50 63.5
377.62 5.62
390.00 5.75 66.0
410.00 5.87
10.5 62.5 380.62 5.72 64.5
443.62 6.12
401.62 5.86 66.5
422.62 5.99 68.5
184
HYDRAULIC TABLES
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1—Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T Τ
A
Τ
A
T
A
0.2
19.0
0.4
20.0
0.6 21.0
0.8 22.0
3.70 0.19 21.0
7.60 .38 22.0
11.70 .55 23.0
16.00 .72 24.0
4.10 0.19 23.0
8.40 .38 24.0
12.90 .56| 25.0
17.60 .72 26.0]
14. 10
19.20
4.50 0.20 25.0
4.90 0.20
9.20.38 26.0
10.00 .38
.56 27.0
.73] 28.0
15.30 .56
20.80.73
1.0
23.0
1.2 24.0
1.4 25.0
1.6 26.0
20.50 .88 25.0
25.20 1.03 26.0
30.10 1.18 27.0
35.20 1.32 28.0
1.8 27.0
40.50 1.46 29.0
22.50 .89 27.0
27.60 1.04| 28.0
32.90 1.19 29.0
38.40 1.34| 30.0
44.10 1.49] 31.0]
24.50 .89 29.0
30.00 1.05 30.0
35.70 1.21| 31.0
41.60 1.36] 32.0]
47.70 1.51 33.0
26.50 .90
32.40 1.06
38.50 1.22
44.80 1.37
51.30 1.52
2.0 28.0
2.2 29.0
2.4 30.0
2.6 31.0
46.00 1.60 30.0
51. 70 1.73| 31.0|
57.60 1.86 32.0
63.70 1.99 33.0
50.00 1.62] 32. 0
56.10 1.76 33.0
62.40 1.901 34.0
54.00 1.65 34. 0
58.00 1.67
60.50 1.79 35.0
64.90 1.81
67.20 1.92 36.0
72.00 1.95
2.8 32.0
70.00 2.12 34.0
68.90 2.03| 35.0]
75.60 2.16 36.0
74.10 2.06 37.0
81.20 2.19) 38.0.
3.0 33.0
3.8
3.2 34.0
3.4 35.0
3.6 36.0
37.0
76.50 2.24 35.0
83.20 2.36 36.0
90.10 2.48| 37.0|
97.20 2.60 38.0
104.50 2.72] 39. 0]
82.50 2.28 37.0
89.60 2.41| 38.0|
96.90 2.53 39.0
104. 40 2.651 40.0
112.10 2.77 41.0
88.50 2.32| 39.0|
96.00 2.45 40.0
103.70 2.57 41.0
111.60 2.70 42.0
119.70 2.82 43.0
79.30 2.09
86.80 2.22
94.50 2.35
102.40 2.48
110.50 2.61
118.80 2.74
127.30 2.86
4.0 38.0
4.2
39.0
4. 4
40.0
4.6
41.0
4.8
42.0
112.00 2.83 40.0
119.70 2.95 41.0
127.60 3.06| 42.0
135. 70 3. 17 43.0
144.00 3.28 44. 0.
120.00 2.89 42.0
128.10 3.01 43.0
136.40 3.12 44.0
144.90 3. 24 45.0
153.60 3.35 46.0
128.00 2.94| 44.0|
136.50 3.06 45.0
145.20 3.18 46. 0
154.10 3. 29
163.20 3.41
136.00 2.99
144.90 3.11
154.00 3.23
47.0
163.30 3.35
48. 0.
172.80 3.47
5.0
43.0
5.2
44.0
5.4 45.0
5.6
46.0
5.8 47.0
152.50 3.39|| 45.0
161.20 3.50 46.0
170.10 3.61 47.0
179.20 3.72 48.0
188.50 3.83 49. 0
162.50 3.46] 47.0]
171.60 3.57 48.0
180 90 3.69 49.0
190.40 3.80 50.0
200.10 3.91 51.0
172.50 3.53 49.0
182 00 3.64 50.0
191.70 3.75 51.0
201.60 3.87 52.0
211.70 3.98 53.0
182.50 3.58
192.40 3.70
202.50 3.82
212.80 3.93
223.30 4.04
6.0 48.0
6.2 49.0
198.00 3.94 50.0
207.70 4.04 51.0
6.4
50.0
217.60 4.15| 52. O
6.6
51.0
227.70 4.25 53.0
6.8
52.0
238.00 4.36 54.0
210.00 4.01 52.0
220.10 4.12 53.01
230.40 4.23] 54.0
240.90 4.34 55.0
251.60 4.44] 56.0
222.00 4.09 54.0
232.50 4.20 55.0
234.00 4.16
244.90 4.27
243.20 4.31 56.0
256.00 4.38
254.10 4.42 57.0
265.20 4.52] 58.0
267.30 4.49
278.80 4.60
7.0 53.0
7.5 55.5
8.0 58.0
8.5 60.5
9.0 63.0
248.50 4.46 55.0
275. 62 4.72 57.5
304.00 4.98 60.0
333.62 5. 23 62.5
5.23
364.50| 5.48| 65. 0|
9.5 65.5 396.62 5.73 67.5
10.0 68.0 430.00 5.98 70.0
262.50 4. 551 57.0
290. 62 4.81 59.5
320.00 5.07 62.0
350.62 5. 33 64.5
382.50 5.59 67.0
415.62 5.84 69.5
450.00 6.09 72.0
450.00 6.09] 72.0
434, 62| 5. 94, 71.5
470.00 6.20] 74. 0
276.50 4.63| 59.0
305.62 4.90 61.5
336.00| 5.16| 64.0
367.62 5.42 66.5
400.50 5.68 69.0
290.50 4.71
320.62 4.98
352.00 5.25
384.62 5.51
418.50 5.78
453.62 6.04
490.00 6.29
10.5 70.5 464.62 6.23 72.5
527.62 6.55
485.62 6.34| 74.5
506.62 6.45 76.5
HYDRAULIC TABLES
185
T, and
Table 11.—Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
T
A
T
T
A
T
T
A
0.2
27.0
0.4 28.0
0.6 29.0
0.8
30.0
5.30 0.20 29.0
10.80 .38 30.0
16.50 .56 31.0
22.40 .74 32.0
17.70
24.00
5.70 0.20 31.0
11.60 .38 32.0
.57 33.0
.74 34.0
6.10 0.20 33.0
12.40 .39 34.0
18.90
25.60 .75 36.0
6.50 0.20
13.20 .39
.57 35.0
20.10 .57
27.20 .75
1.0
31.0
28.50 .91 33.0
1.2 32.0
34.80 1.07 34.0
1.4
33.0
1.6
34.0
1.8
35.0
41.30 1.23 35.0
48.00 1.39| 36.0
54.90 1.54 37.0
30.50 .91 35.0
37.20 1.08 36.0
44.10 1.24 37.0
51.20 1.40 38.0
58.50 1.55 39.0
32.50 .92 37.0
39.60 1.09 38.0
46.90 1.25 39.0
54.40 1.41 40.0
62. 10 1.56 41.0
34.50 .92
42.00 1.09
49.70 1.26
57.60 1.42
65.70 1.58
2.0 36.0
2.2 37.0
2.4 38.0
2.6 39.0
2.8 40.0
3.0 41.0
3.2
42.0
3.4 43.0
3.6 44.0
62.00 1.69 38.0
69.30 1.83 39.0
76.80 1.97 40.0
84.50 2.11 41.0
92.40 2.25| 42.0
100.50 2.38 43.0
108.80 2.52 44.0
117.30 2.65 45.0
126.00 2.78 46. 0
66.00 1.70 40.0
73.70 1.85 41.0
81.60 1.99 42.0
89.70 2.14] 43.0|
98.00 2.27 44.0
3.8 45.0
134.90 2.90 47.0
106.50 2.41 45.0
115.20 2.55 46.0
124. 10 2.68 47.0
133.20 2.81 48.0
142.50 2.94| 49.0
70.00 1.72 42.0
78.10 1.87 43.0
86.40 2.01 44.0
94.90 2.16 45.0
103.60 2.30 46.0
112.50 2.44 47.0|
121.60 2.57 48.0
130.90 2.71 49.0
140.40 2.84 50.0
150. 10 2.97 51.0
74.00 1.73
82.50 1.88
91.20 2.03
100.10 2.18
109.20 2.32
118.50 2.46
128.00 2.60
137.70 2.74
147.60 2.87
157.70 3.01
4.0
46.0
4.2 47.0
48.0
4.4
4.6 49.0
4.8 50.0
144.00 3.03 48.0
153.30 3.15 49.0
162.80 3.28 50.0
172.50 3.40 51,0
182.40 3.52 52.0
152.00 3.07 50.0
161.70 3.19 51.0
171.60 3.32 52.0
181.70 3.44 53.0
192.00 3.57 54.0
160.00 3.10 52.0
170.10 3.23 53.0
180.40 3.36 54.0
190.90 3.49 55.0
201.60 3.61 56.0
168.00 3.14
178.50 3.27
189.20 3.40
200.10 3.52
211.20 3.65
5.0
51.0
5.2
52.0
192.50 3.64 53,0
202.80 3.76 54. 0
202.50 3.69 55.0|
5.4 53.0
213.30 3.871 55. 0
213.20 3.81 56.0
224.10 3.93 57.0
212.50 3.73 57.0
223.60 3.85 58.0
222.50 3.78
234.00 3.90
234.90 3.98 59.0
245.70 4.02
5.6
54.0
224.00 3.99 56.0
5.8
55.0
234.90 4.10 57.0
235.20 4.04 58.0
246.50 4.16 59.0
246.40 4.10 60.0
257.60 4.14
258.10 4.21 61.0
269.70 4.27
6.0
56.0
246.00 4.22 58.0
6.2 57.0
257.30 4.33] 59. 0
258.00 4.28 60.0
269.70 4.39| 61.0]
6.4
58.0
268.80 4.45 60. 0)
6.6
59.0
6.8 60.0
280.50 4.56 61. 0]
292.40 4.67 62. 0]
281.60 4.51 62.0
293.70 4.62 63.0
306.00 4.74 64.0
270.00 4.33 62. 0
282.10 4.45 63.0
294.40 4.57 64.0
306.90 4.68 65. 0
319.60 4.80 66.0
282.00 4.38
294.50 4.50
307.20 4.62
320.10 4.74
333.20 4.86
7.0
61.0
304.50 4.78 63. 0)
7.5
63.5
8.0 66.0
8.5
68.5
9.0
71.0
335.62 5.06 65.5
368.00 5.33 68.0
401.62 5.60 70.5
436.50 5.86 73.0
318.50 4.85 65.0
350.62 5.13 67.5
384.00 5.40 70.0
418.62 5.67 72.5
454.50 5.94| 75.0|
332.50 4.91 67.0
365.62 5.19 69.5
400.00 5.47 72.0
435.62 5.75 74.5
472.50 6.02 77.0
346.50 4.97
380.62 5.26
416.00 5.54
452.62 5.82
490.50 6.10
9.5
73.5
10.0 76.0
10.5
78.5
472.62 6.13 75.5
510.00 6.39 78.0 530.00 6.48 80.0
548.62 6.65 80.5 569.62 6.74 82.5
491.62 6.21 77.5
510.62 6.29 79.5
550.00 6.56 82.0
590.62 6.82 84.5
529.62 6.37
570.00 6.64
611.62 6.91
563189°
-44- -13
186
HYDRAULIC TABLES
Table 11.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1—Continued
T, and

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
ང་
T
A
T
A
T T
A
T
A
0.2
36.0
0.4
37.0
0.6 38.0
0.8
39.0
7.10 0.20 41.0
14.40 .39| 42.0
21.90 .57 43.0
29.60 .75 44.0
8.10 0.20 46.0
16.40
.39 47.0
24.90
.58 48.0
33.60
76 49.0
9.10 0.20 51.0
18.40.39 52.0
27.90 .58 53.0
37.60 .76 54.0
10.10 0.20
20.40
30.90 .58
41.60 .77
.39
1.0 40.0
1.2 41.0
37.50 .93 45.0
45.60 1.10 46.0
•
1.4 42.0
53.90 1.27 47.0
1,6 43.0
62.40 1.43 48.0
1.8
44.0
71.10 1.59 49.0
42.50 94 50.0
51.60 1.11 51.0
60.90 1.28 52.0
70.40 1.45 53.0
80.10 1.61 54.0
2.0
45.0
2.4
2.2 46.0
47.0
2.6 48.0
2.8 49.0
3.0 50.0
3.2 51.0
80.00 1.75 50.0
89.10 1.90 51.0
98.40 2.05 52.0
107.90 2.20 53.0
117.60 2.35 54.0
90.00 1.77 55.0
100.10 1.93 56.0
110.40 2.09 57.0
120.90 2.24 58.0
131.60 2.39 59.0
3.4
52.0
3.6 53.0
3.8
54.0
127.50 2.49 55.0
137.60 2.63 56.0
147.90 2.77 57.0
158.40 2.91 58.0
169. 10 3.05 59.0
142.50 2.54 60.0
153.60 2.68 61.0
164.90 2.83 62.0
176.40 2.97 63.0
188. 10| 3. 11
3.11 64.0
47.50 .94 55.0
57.60 1.12 56.0
67.90 1.29 57.0
78.40 1.46 58.0
89.10 1.63 59.0
100.00 1.79 60.0
111.10 1.95 61.0
122.40 2. 11 62.0
133.90 2.27 63.0
145.60 2.42 64.0.
157.50 2.58| 65. O
169.60 2.73) 66.0)
181.90 2.87 67.0
194.40 3.02 68.0
207.10 3.16 69.0
52.50 .95
63.60 1.13
74.90 1.30
86.40 1.47
98.10 1.64
110.00 1.81
122.10 1.97
134.40 2.14
146.90 2.30
159.60 2.45
172.50 2.61
185.60 2.76
198.90 2.91
212.40 3.06
226.10 3.21
4.2
4.4 57.0
4.0 55.0
180.00 3. 18 60.0
56.0 191.10 3.32 61.0
202.40 3.45 62. 0
4. 6 58.0
4.8
59.0
213.90] 3.58 63. 0
225.60 3.71 64.0
200.00 3.25| 65.0
212.10 3.39] 66.0
224.40 3.52 67.0
236.90 3.66 68.0
249.60 3.79) 69.0
220.00 3.31 70.0
233.10 3.45 71.0
246.40 3.59 72.0
240.00 3.35
254.10 3.50
268.40 3.64
259.90 3.73) 73.0]
273.60 3.86 74.0
282.90 3.78
297.60 3.92
5.0 60.0 237.50 3.84 65.0
5.2 61.0 249.60 3.96 66.0
5.4 62.0 261.90 4.09 67.0
5.6 63.0 274.40 4. 21 68.0
5.8 64.0 287.10 4.33 69.0
262.50 3.92 70.0
275.60 4.05 71.0
288.90 4.18 72.0
302.40 4.31 73.0
316. 10 4.44 74.0
287.50 4.00| 75. 0
301.60 4.13| 76.0
315.90 4.26 77.0
330.40 4.40| 78.0|
345. 10 4. 53
4.53
312.50 4.06
327.60 4.20
342.90 4.34
358.40 4.47
79.0
374.10 4.61
6.0 65.0
300.00 4.46 70.0
6.2 66.0
313.10 4. 58 71.0
6.4 67.0
6.6 68.0
6.8 69.0
326.40 4.70 72.0,
339.90 4.82 73.0
353.60 4.94 74.0
330.00 4.56 75.0
344.10 4.691 76.0
358.40 4.81 77.0
372.90 4.94 78.0
387.60 5.06] 79.0
360.00 4.66| 80.0
360.00 4.66 80.0
375.10 4.79| 81.0
390.40 4.91 82.0
405. 90| 5.04| 83. 0
421.60 5. 17 84.0
390.00 4.74
406.10 4.87
422.40 5.00
438.90 5.13
455.60 5.26
7.0 70.0
7.5 72.5
8.0 75.0
8.5 77.5
9.0 80.0
367.50 5.06 75.0
403.12 5.35 77.5
440.00 5.64| 80.0
402.50 5.18 80.0
440. 62 5.48 82.5
480.00 5.78| 85.0|
478.12 5.92 82.5 520.62 6.07 87.5
517.50 6.20 85.0
562.50 6.36 90.0
437.50 5.29 85.0
478. 12 5. 60 87.5
520.00 5.90| 90.0|
563. 12 6. 20 92.5
607.50 6.50 95. 0
472.50 5.39
515.62 5.70
560.00 6.02
605.62 6.32
652.50 6.63
9.5
82.5
10.0 85.0
558. 12 6.48 87.5
600.00 6.75 90.0
643. 12 7.03 92.5 695.62 7.21 605.62 6.64 92, 5
650.00 6.93 95.0
653. 12 6.79 97.5
700.00| 7.08|100. 0
700.62 6.93
750.00 7.22
10.5 87.5
800.62 7.51
97.5
97.5
748.12| 7.37 102. 5
HYDRAULIC TABLES
187
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1—Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
д
Τ
A
7 T
A
T T
A
T
0.2 61.0
0.4 62.0
12.10 0.20 71.0
24.40.39 72.0
0.6 63.0
0.8
64.0
36.90 .58 73.0
49.60 .77 74.0
1.0 65.0
1.2 66.0
1.4 67.0
62.50
.96| 75.0
14.10 0.20 81.0
28.40.39| 82.0
42.90 .59 83.0
57.60 .78 84.0
72.50
16.10 0.20 91.0
32.40 .39 92.0
18.10 0.20
36.40 .39
48.90
65.60
.59 93.0
.78 94.0
54.90
59
73.60
.78
.96| 85.0|
1.6 68.0
1.8 69.0
75.60 1.14 76. 0
88.90 1.32 77.0
102.40 1.49 78.0
116.10 1.67 79.0
87.60 1.15 86.0
102.90 1.33 87.0
118.40 1.51 88.0
134. 10 1.68| 89.0
2.0 70.0 130.00 1.84 80.0
2.2 71.0
2.4 72.0
2.6 73.0
2.8 74.0
144.10 2.01 81.0
158. 40 2.17 82.0
172.90 2.34 83.0
187.60 2.50 84.0
3.0
75.0
3.2 76.0
3.4 77.0
3.6 78.0
3.8 79.0
202.50] 2.66| 85. 0
217.60 2.82 86.0
232.90 2.97 87.0
248.40 3.13 88.0
264.10 3.28 89.0
4.0 80.0
4. 2
81.0
4.4
82.0
280.00 3.43 90.0
296. 10 3.58 91.0
312.40 3.73 92.0
4. 6
83.0
4.8
84.0
328.90 3.88 93.0
345.60 4.03 94.0
5.0 85.0
5.2 86.0
5.4
87.0
5.6
88.0
5.8
89 0
362.50 4. 17 95.0
379.60 4.31 96.0
396. 90 4.46 97.0
414.40 4.60 98.0
432.10 4.74 99.0
6.0
90.0
6. 2
91.0
6.4
92.0
6. 6
93.0
6.8
450.00 4.87 100.0
468. 10 5.01 101.0
486.40 5. 15102.0||
504.90 5.28 103.0
94.0 523.60 5.42 104.0
150.00 1.86 90.0
166.10 2.03 91.0
182.40 2.20 92.0
198.90| 2.37| 93.0||
215.60 2.53| 94. 0
232.50 2.70 95.0
249.60 2.86| 96.0
266.90 3.02 97.0
284.40 3.18 98.0
302.10 3.34 99.0
320.00 3.50 100.0
338.10 3.65 101.0
356.40 3.80 102.0
374.90 3.96 103.0
393. 60 4. 11|104. 0
412.50 4.26 105.0
431.60 4.40 106.0
450.90 4.55 107.0
470.40 4.70|108. 0|
490.10 4.84 109. 0
510.00 4.98 110.0
530. 10 5. 13111.0
550.40 5.27112.0
570.90 5.41113.0
591.60 5.55 114.0
82.50 .97| 95.0
99.60 1.15 96.0|
116.90 1.34 97.0
134.40 1.52 98.0
152.10 1.70 99.0
170.00 1.87 100. 0
188.10 2.05 101. 0
206.40 2. 22102.0
224.90 2.39|103.0
243.60
462. 50 4.33 115.0
483.60 4.48116. 0
504.90 4.63 117.0
526.40 4.78 118. 0
548. 10 4.93 119.0
570.00 5.08 120.0
592.10 5.22 121.0
614.40 5.37 122. 0
92.50 .97
111. 60 1.16
130.90 1.34
150.40 1.53
170. 10 1.71
190.00 1.89
210.10 2.06
558.90 4.69
582.40 4.85
606. 10 5.00
630.00 5.15
654. 10 5.30
230.40 2.24
250.90 2.41
2.56 104. 0
271.60 2.58
262, 50]
2.73|105. 0
292.50 2.76
281.60 2.90|106. 0
313.60 2.92
300.90
320. 40
340. 10 3. 39 109.0
3.06 107.0
334.90 3.09
3. 22108. 0
356.40 3. 26
378.10 3.42
360.00 3.55110. 0
380.10 3.70 111.0
400. 40
420. 90
400.00 3.59
422.10 3.75
3.86112. 0
4.02|113.0
441.60 4. 17 114.0
444.40 3.91
466.90 4.07
489.60 4.23
512.50 4.38
535.60 4.54
678.40 5.45
636.90 5.51 123.0
702.90 5.60
659.60 5.66124. 0
727.60 5.75
7.0
95.0
542.50 5.55 105.0
612.50 5.69 115.0
7,5 97.5
590.62 5.88 107.5
8.0 100.0
640.00 6. 21/110.0
8.5 102.5
690.62 6.53 112.5
9.0 105.0
742.50 6.85115.0
665.62 6.03₤117.5
720.00 6.37120.0
775.62 6.70 122. 5
832.50 7.03 125.0
922. 50 7. 18135. 01, 012. 50| 7.31
9.5 107.5 795.62 7.16 117.5 890.62 7.35 127.5 985.62
10.0 110.0 850.00 7.47120.0 950.00 7.67 130. 01, 050. 00
7.51 137. 51, 080.62 7.66
7.84 140.01, 150.00 7.99
682.50 5.80 125.0
740.62 6. 15127.5
800.00 6.50 130. 0
860.62 6.84 132. 5
752.50 5.89
815.62 6.26
880.00 6.61
945.62 6.96
10.5 112.5 905.62 7.77 122. 51, 010. 62 7.99 132. 51, 115. 62
8. 17142. 51, 220. 62| 8.33
188
HYDRAULIC TABLES
Table 11.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels
side slopes 2½ to 1—Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T T
A
T T
A
T T
A
0.2 101. 0
0.4 102. 0
20.10
0.20|111. 0
22.10 0.20 121.0
24.10 0.20|131. 0
26.10 0.20
40.40
.40 112. 0
44. 40
40 122. 0
48.40
.40 132.0
52.40
•
.40
0.6 103. 0
60.90
.59 113. 0
0.8 104.0
81.60
.78 114.0
66.90
89.60.
.59 123.0
72.90
59 133.0
78.90
.59
•
.78 124.0
97.60 .79 134. 0
105.60 .79
1.0 105.0
1.2 106.0
1.4 107.0
1.6 108.0
1.8 109.0
102. 50
123.60 1.16 116. 0
144.90 1.35 117.0
166.40 1.53 118. 0
188.10 1.71 119. 0
97 115.0
•
112.50
135.60 1.16 126.0
158.90 1.35 127.0
182.40 1.54 128.0
206.10 1.72 129.0
98125.0
•
122.50.98|135. 0
132.50 .98
147.60 1.17 136.0
172.90 1.36 137.0
198.40 1.54138.0
224.10 1.73 139. 0
159.60 1.17
186.90] 1.36
214.40 1.55
242.10 1.73
2.0 110.0
2.2 111. 0
2.4 112. 0
2.6113.0
2.8114.0
210.00 1.90 120. 0
232.10 2.08 121.0
254.40 2.25 122.0
276.90 2.43 123.0
299.60 2.60 124.0
230.00 1.901130. 0
254.10 2.09131. 0
278.40 2.26 132.0
302.90
327.60
2.44 133. 0
2.62 134. 0
3.0 115.0 322.50 2.78|125. 0
3.2 116.0 345.60 2.95 126. 0
3.4 117.0 368.90 3.12 127.0
3.6 118.0 392.40 3.29 128.0
3.8 119.0 416.10 3.45|129. 0
352.50 2.79 135.0
377.60 2.97 136. 0
402.90 3. 14137.0
382.50 2.81 145.0
409.60 2.98146. 0
436.90 3. 16147.0
250.00 1.91 140. 0
276.10 2.09 141.0
302.40 2.27|142.0
328.90 2.45143.0
355.60 2.63144.0
270.00 1.92
298. 10) 2.10
326. 40) 2. 28
354.90 2.46
383, 60] 2.64
412.50 2.82
441.60 3.00
470.90 3.18
428.40 3.31 138. 0
454. 10 3.48 139. 0
464.40 3.33 148. 0
500.40 3.35
492.10 3.50₤149.0
530.10 3.52
4. 0 120.0
4.2 121.0
4.4 122.0
4.6 123.0
4.8 124.0
440.00 3.62 130.0
464.10 3.78 131.0
488.40 3.95 132. 0
512.90 4.11|133. 0
537.60 4.27|134. 0
480.00 3.65 140. 0|
506. 10
532.40
558.90
585.60
520.00 3.67 150.0
560.00 3.70
3.82141. 0
3.98 142. 0
548.10 3.84|151, 0
590.10 3.87
576.40 4.01 152.0
620.40 4.04
4.15]143. 0|
604.90 4.18|153. 0
650.90 4.21
4.31 144. 0
633.60 4.34 154.0
681.60 4.37
5.0 125.0
5.2 126.0
562.50 4.43135. 0
587.60 4.59 136.0
5.4127.0
5.6 128.0
5.8 129.0
612.90 4.75 137.0
638.40 4.90 138.0
664. 10 5.06 139.0
612.50 4.47 145. 0
639.60| 4.63|146. 0
666.90 4.80147.0
694.40 4.95|148. 0
722. 10 5. 11|149.0
662.50 4.51 155.0
691.60 4.67 156.0
720.90 4.84 157.0
712.50 4.54
743.60 4.71
774.90 4.87
750.40 5.00 158.0
806.40 5.04
780.10 5.16159.0
838.10 5.20
6.0 130.0
6.2 131.0
6.4 132.0
6.6 133.0
6.8134.0
690.00 5.21 140.0
716. 10 5.37 141.0
742.40 5.52 142.0
768.90 5.67 143. 0
795.60 5.82 144.0
750.00
778. 10
806.40
5.27150. 0
5.43 151. 0
5.58 152.0
810.00 5.32 160.0
840. 10 5.48 161. 0
870.40 5.63 162. 0
900.90 5.79 163.0
931.60 5.95 164.0
870.00 5.36
902.10 5.52
934.40 5.68
966.90 5.84
999, 60
6.00
822.50 5.97 145.0
890.62 6.34 147. 5
7.0 135.0
7.5 137.5
8.0 140.0 960.00
8.5 142. 51, 030. 62
9.0 145. 01, 102. 50
9.5 147. 51, 175. 62
10. 0 150. 01, 250.00
834.90 5.74|153. 0
863.60 5.89154.0
892. 50
965.62
6.71 150. 01, 040. 00|
7.07 152. 51, 115. 62
7. 43 155. 01, 192. 50
7.78 157. 51, 270. 62
8. 12 160. 01, 350.00
6.04 155.0 962.50
6.42 157. 5 1, 040. 62
6. 79|160.0|1, 120.00|
7. 16162. 51, 200.62
7. 53 165. 01, 282. 50
7.88 167.51, 365. 62
8. 24 170. 01, 450.00
6.10 165. 01, 032.50 6. 16
6.49 167. 51, 115. 62 6. 55
6.87 170. 01, 200.00 6.93
7. 24 172. 51, 285. 62 7.31
7.61 175. 01, 372. 50 7.69
7.98 177. 51, 460.62 8.06
8.34 180. 01, 550.00 8.43
10.5 152. 51, 325. 62
8.70 182. 51, 640. 62 8.79
8. 47 162. 51, 430. 62
8. 59 172. 51, 535. 62
HYDRAULIC TABLES
189
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
A
T T
A
T
T
A
0.2141. 0
0.4 142.0
0.6 143.0
0.8 144.0
1.0 145.0
84.90
113.60
28.10 0.20 151.0
56.40.40 152.0
.59 153.0
.79 154.0
121.60
30.10 0.20|161. 0
60.40.40 162. 0
90.90 59 163.0
.79|164.0
•
32.10 0.20 171.0
64.40
96.90
34.10 0.20
40 172.0
68.40 .40
59 173.0
102.90 .59
129.60
.79 174.0
137.60.79
1.2 146.0
1.4 147.0
142.50
171.60 1.17 156. 0
200.90 1.36 157.0
.98 155.0
1,6 148.0
1.8 149.0
2.0 150.0
2.2 151.0
2.4 152.0
230.40 1.55 158.0
260.10 1.74 159.0
152.50 .98 165.0
183.60 1.17 166.0
214.90 1.36 167.0
246.40 1.55168.0
278.10 1.74 169.0
162.50
.98 175.0
172.50 .98
195.60 1.18 176. 0
228.90 1.37 177.0
207.60 1. 18
242.90 1.37
262.40 1.56 178.0
278.40 1.56
296. 10
1.74 179.0
314.10 1.75
2.6 153.0
2.8 154.0
290.00 1.92|160. 0|
320.10 2.11 161. 0
350.40 2.29162. 0
380.90 2.47 163. 0
411.60 2.65 164. 0
310.00 1.93 170.0
342.10 2. 11171.0
374.40 2.30 172.0
406.90 2.48 173.0
439.60 2.66 174.0
330.00
1.93 180.0
350.00 1.94
364. 10
2. 12 181.0
386.10 2.12
398. 40
2.30 182. 0
2.30|182.
422.40 2.31
432.90 2.49 183.0
467.60 2.67 184.0
458.90 2.49
495.60 2.68
3.0 155.0
3.2156.0
442.50 2.83 165.0
472.50 2.84 175.0
502.50 2.85 185.0
532.50 2.86
473.60 3.01 166. 0
505.60 3.02|176. 0
537.60 3.03 186. 0
569.60 3.04
3.4 157.0
3.6 158.0
3.8159.0
504.90 3.19|167.0
4.4 162.0
4.0 160.0
4.2 161.0
536.40 3.37|168.0
568.10 3.54169.0
600.00 3.71 170. 0
632.10 3.89 171.0
664.40 4.06 172.0
640.00 3.73 180.0
674. 10 3.91 181.0
538.90 3.20|177.0
572.40 3.38 178.0
606.10 3.56 179.0
572.90 3. 21 187.0
608.40 3.39 188.0
644.10 3.57 189.0
606.90 3.22
644.40 3.40
682.10 3.58
680.00 3.75 190.0
716.10 3.92 191.0
720.00 3.76
758.10 3.94
4.6 163.0
4.8 164.0
5.0 165.0
5.2 166.0
696.90 4.23 173.0
729.60 4.40 174. 0
5.4 167.0
762.50 4.57 175.0
795.60 4.74 176.0
828.90 4.90 177.0
5.6 168.0 862.40 5.07 178.0
5.8 169.0 896. 10 5.23179.0
930.00|| 5.40 180.0
6.0 170.0
6.2 171.0 964. 10
6.4 172.0 998. 40
6.6 173. 01, 032. 90
6.8 174. 0 1,067. 60||
7.0 175. 01, 102. 50
7.5 177. 51, 190. 62
8.0 180. 01, 280. 00
8.5 182. 51, 370. 62
9.0 185. 01, 462. 50
9.5 187. 51, 555. 62
10.0 190. 01, 650.00
788.90 4.27 193.0
825. 60|| 4. 44|194.0
862.50 4. 61|195.0
899.60 4.79 196.0
812.50 4. 59185.0
847.60 4.76 186.0
882.90 4.93 187.0
918. 40 5. 10 188.0
954.10 5. 26189. 01, 012. 10
990.00
5.56 181. 01, 026. 10
5. 72|182. 01, 062. 40
5.88 183. 01, 098. 90
6.04|184. 01, 135. 60
6. 20 185. 01, 172. 50
6. 60 187. 51, 265. 62
6.99 190. 01, 360.00
7.38 192. 51, 455. 62
7. 76₤195. 01, 552. 50
8. 14|197. 51, 650. 62
8.51 200. 01, 750.00
936.90 4. 96 197.0
936.90 4.96 197.0
974.40 5. 12 198. 01, 030. 40
5. 29 199.0 1,070. 10
5. 43 190. 01, 050.00
5. 60 191. 01, 088.10||
5. 76192. 01, 126.40
5.92193. 01, 164. 90
6. 09/194. 01, 203. 60
6. 25 195. 01, 242. 50
6. 65 197. 51, 340.62
7.04 200. 01, 440. 00
7.44 202. 51, 540. 62
7.82 205. 01, 642. 50|
8. 21207. 51, 745. 62||
8.58 210. 01, 850.00
5. 46 200.01, 110.00 5. 49
5. 63 201. 01, 150. 10 5.65
5.79 202. 01, 190. 40 5.82
5.96 203.01, 230.90 5.99
6. 12 204. 01, 271. 60| 6. 15
6. 28 205. 01, 312. 50 6.32
6. 69 207. 51, 415. 62 6.73
7. 09 210. 01, 520.00 7.13
7. 49 212. 51, 625. 62 7.53
7. 88|215. 01, 732. 50 7.93
8. 27|217. 51, 840. 62 8.32
8.65 220.01, 950.00 8.71
708.40 4.08|182.0||||| 752.40 4. 10 192.0
742.90 4.25 183.0]
777.60 4.42|184.0
796.40 4. 11
834.90 4.29
873.60 4.46
912.50 4.63
951.60 4.81
990.90 4.98
5. 15
5.15
5.32
10.5 192. 51, 745. 62
9. 03 222. 52, 060. 62 9. 10
8. 88202. 51, 850. 62
8. 96 212. 51, 955. 62
190
HYDRAULIC TABLES
Table 11.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
↑
T
A
T
T
A
0.2
181.0
36. 10
0.20 191.0
38. 10
0.20
201.0
40. 10
0.20
0.4
182.0
72.40
.40
192.0
76.40
.40 202.0
80.40
.40
0.6
183.0
108.90
.59
193.0
114.90
.59 203.0
120.90
.59
0.8
184.0
145.60
.79
194.0
153.60
.79
204.0
161.60
.79
1,0
185.0
182.50
.98
195.0
192.50
.99 205.0
202.50
.99
1.2
186.0 219.60
1. 18
196.0
231.60
1.18 206.0
243.60
1. 18
1.4
187.0
256.90
1.37
197.0
270.90
1.37 207.0
284.90
1.37
1.6
188.0
294.40
1.56
198.0
310.40
1.56 208.0
326.40
1.56
1.8
189.0
332.10 1.75
199.0
350. 10
1.75 209.0
368.10
1.76
2.0
190.0
2.2
191.0
370.00
408.10
1.94 200.0
390.00
1.94
210.0
410.00
1.95
2.13
201.0
430. 10
2. 13
211.0
452.10
2. 13
2.4
192.0
446.40 2.31
202.0
470.40
2.32 212.0 494.40
2.32
2.6
193.0
484.90
2.50
203. Ol
510.90
2.8
194.0
523.60 2.68
204.0
551.60
2.50 213.0
2.69 214.0
536.90
2. 51
579.60
2.69
3.0
195.0
562.50 2.87
205.0
592.50
2.87
215.0
622.50
2.88
3.2
196.0
601.60
3.05
206. 0
633.60
3.06
216.0
665.60 3.06
3.4
197.0
640.90
3.23
207.0
674.90
3. 24
217.0
708.90 3.25
3.6
198.0
680.40
3. 41
208.0
716.40
3.42
218.0
752.40 3.43
3.8
199.0
720.10
3.59
209.0)
758. 10
3.60
219.0
796.10 3.61
4.0
200.0
760.00
3.77
210.0
800.00
3.78
220.0
840.00 3.79
4.2 201.0
800.10
3.95
211.0
842.10
3.96
221.0
884.10
3.97
4.4
202.0
840.40
4. 13
212.0
884.40
4. 14
222.0
928.40
4. 15
4.6
203.0
880.90
4.30
213.0
926.90
4.32
223.0
972.90
4.33
4.8
204.0
921.60
4.48 214.0 969.60
4.49
224. 0 1,017. 60
4.51
5.0
205.0
962.50
4.65
215. 01, 012. 50
4.67
225.0 1,062. 50
4.68
5.2
206. 0
1,003. 60
4.82
216.0 1,055. 60
4.84
226. 0 1, 107.60
4.86
5.4
207. 0
1,044. 90
5.00
217.0 1,098.90
5.02
227.0 1,152. 90
5.03
5. 6
208.0 1,086. 40
5. 17
218. 0
1, 142. 40
5. 19
228. 0 1, 198. 40
5. 21
5.8
209. 0 1, 128. 10
5. 34
219.0
1, 186. 10
5.36
229.0 1,244. 10
5.38
6.0
210.0 1,170.00
5. 51
220.0 1, 230. 00
5.53
230. 0j 1, 290.00
5.55
6.2
211.0 1, 212. 10
5.68
221.0 1, 274. 10
5.70
231.0 1,336. 10
5. 72
6.4
212. 0 1, 254. 40
5.85
222.0 1,318. 40
5.87
232.0 1,382. 40
5.90
6.6
213.0 1,296. 90
6.02
223.0 1,362.90]
6.04
233.0 1,428.90
6.07
6.8
214. 0 1,339. 60|
6. 18
224. 0
1, 407. 60
6. 21
234.0 1, 475.60
6. 24
7.0
215. 0 1,382.50
6.35
225. 0 1, 452.50
6.38
235.0 1, 522. 50
6.41
7.5
217.5 1,490.62
6.76
227.5 1, 565. 62
6.80
237.5 1, 640. 62
6.82
8.0 220.0 1,600.00
7.17
230.0 1, 680.00
7.21
240.0 1, 760. 00
7.24
8.5
222.5 1,710.62
7.58
232.5 1,795. 62
7.62
242.5) 1,880. 62
7.65
9.0
225.0 1,822. 50
7.98
235. 0
1,912. 50
8.02
245.0 2, 002. 50
8.06
9.5
227.5 1, 935. 62
8.37
237.5 2,030. 62
8.42
247.52, 125. 62
8.46
10.0
230.0 2,050.00
8.77
240.0 2,150.00
8.82
250.0 2,250.00
8.86
10.5
9.26
232.5 2, 165. 62
252.5 2,375. 62
9.16
9.21
242.5 2,270. 62
HYDRAULIC TABLES
191
width in feet, T, and
Table 11.-Area in square feet, A, top
top
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
*
T
T
A
T
T
A
T T
A
T
11
57.0
324.50 5.30 58.0
13
1221 1==== 2223:
62.0
384.00 5.76] 63. 0
67.0
448.50 6.23] 68.0|
14
72.0
518.00 6.69 73.0
335.50 5.39 59.0
396.00 5.86 64.0
461.50 6.32 69.0
532.00 6.79 74.0|
346.50 5.48 60.0
408.00 5.95] 65.0
474.50 6.41 70.0
546.00 6.88 75.0
357.50 5.57
420.00 6.03
487.50 6.50
560.00 6.97
15
77.0
592.50 7.16 78.0
16
82.0
672.00 7.62 83.0
607.50 7.25 79.0
688.00 7.72 84.0
17
87.0 756.50 8.09 88.0
773.50 8.18 89.0
18 92.0 846.00 8.55 93.0
97.0
940.50 9.02 98.0
864.00 8.65 94.0
959. 50 9.11| 99. 0
622.50 7.34 80.0
704.00 7.81 85.0
790.50 8.27| 90.0]
882.00 8.74 95.0
978.50 9.20 100.0
637.50 7.43
720.00 7.90
807.50 8.36
900.00 8.83
997.50 9.29
20 102. 01, 040. 00 9. 48 103. 01, 060. 00 9. 58 104. 01, 080. 00 9.67 105. 01, 100.00 9.76
21 107.01, 144. 50 9.94 108. 01, 165. 50 10. 04 109. 01, 186. 50 10. 13 110. 01, 207.50 10. 23
22 112.01, 254. 00|10. 41|113. 01, 276. 00|10. 50|114. 01, 298. 00 10. 60 115. 01, 320. 00 10. 69
23 117.01, 368. 50 10. 87 118. 01, 391. 50 10. 97 119. 01, 414. 50 11. 06 120. 01, 437. 50 11. 16
24 122. 01, 488. 00 11. 34 123. 01, 512. 00 11. 43 124. 01, 536. 00 11. 53 125. 01, 560.00 11.62
•
25 127.01, 612. 50 11. 80 128. 01, 637. 50 11. 90 129. 01, 662. 50 11. 99 130. 01, 687. 50 12.09
26 132.01, 742.00 12. 27 133. 01, 768. 00 12. 36 134. 01, 794. 00 12. 46 135. 01, 820. 00/12. 55
27 137.01, 876. 50 12. 73 138. 01, 903. 50 12. 83 139. 01, 930. 50 12. 92 140. 01, 957.50 13.02
28 142. 02, 016. 00 13. 20143. 02, 044. 00|13. 29|144. 02, 072. 00 13. 39/145. 02, 100. 00|13. 48
29
147.02, 160. 50 13. 66 148. 02, 189. 50 13. 76 149. 02, 218. 50 13. 85 150. 02, 247. 50 13. 94
30 152. 02, 310. 00 14. 12|153. 02, 340. 00 14. 22 154. 02, 370. 00 14. 32 155. 02, 400. 00 14. 41
31 157.02, 464. 50 14. 59 158. 02, 495. 50 14. 68 159. 02, 526. 50 14. 78160. 02, 557. 50 14. 87
32 162. 02, 624. 00 15. 05 163. 02, 656. 00 15. 15 164. 02, 688. 00 15. 24 165. 02, 720. 00 15. 34
33 167.02, 788. 50 15. 52 168. 02, 821. 50 15. 61 169. 02, 854. 50 15. 71 170. 02, 887. 50 15.80
34 172. 02, 958. 00 15. 98 173. 02, 992. 00 16. 08 174. 03, 026. 00 16. 17 175. 03, 060.00 16. 27
35 177.03, 132. 50 16. 45 178. 03, 167. 50 16. 54 179. 03, 202. 50 16. 64 180. 03, 237. 50 16.73
36 182. 03, 312.00 16. 91 183. 03, 348. 00 17.01 184. 03, 384. 00 17. 10185. 03, 420.00 17.20
37 187.03, 496. 50 17. 37|188. 03, 533. 50 17.47 189. 03, 570. 50 17. 57 190. 03, 607. 50 17.66
38192. 03, 686. 00 17.84₤193. 03, 724. 00 17. 94 194. 03, 762. 00 18. 03 195. 03, 800. 00|18. 13
39 197.03, 880. 50 18.30 198. 03, 919. 50 18. 40/199. 03, 958. 50 18. 50 200. 03, 997. 50 18. 59
40 202.0 4,080.00 18. 77 203. 0 4, 120.00 18. 86 204. 04, 160. 00 18. 96 205. 04, 200. 00 19.06
41 207.04, 284. 50 19.23 208. 04, 325. 50/19. 33 209. 04, 366. 50 19. 42|210. 04, 407. 50 19. 52
42 212. 0 4, 494. 00 19. 70 213.04, 536.00 19.79 214. 04, 578. 00 19.89 215. 04, 620.00 19.98
43 217.04, 708. 50|20. 16|218. 04, 751. 5020. 26219. 04, 794. 50|20. 35|220. 04, 837. 50 20. 45
44 222. 04, 928. 00[20. 62|223. 0|4, 972. 00|20. 72|224. 05, 016. 00|20. 82|225. 0|5, 060. 00|20. 91
45
227. 05, 152. 50 21.09 228. 05, 197. 50|21. 19|229. 0|5, 242. 50|21. 28|230. 0|5, 287. 50|21. 38
46 232. 05, 382.00 21. 55 233. 05, 428. 00 21. 65234. 05, 474. 00 21. 75 235. 05, 520.00 21.84
47 237.05, 616. 50 22. 02 238. 05, 663. 50 22. 11 239. 05, 710. 50 22. 21 240. 05, 757.50 22.31
48 242. 05, 856. 00 22. 48 243. 05, 904. 00 22. 58 244. 05, 952. 00 22. 68 245. 06, 000. 00 22.77
49 247. 06, 100. 50|22. 95|248. 06, 149. 50 23. 04|249. 06, 198. 50 23. 14|250. 06, 247. 50 23. 24
50 252. 06, 350. 00 23. 41 253. 0606,
, 400. 0023. 51|254. 06, 450. 0023. 60|255. 0|6, 500.00 23. 70
00 23. 512
0255.
192
HYDRAULIC TABLES
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
T
A
T T
A
T T
A
11
61. 0
12
66.0
13
71.0
14
76.0
368.50 5.65 62.0
432.00 6. 12 67.0
500.50 6.58] 72.0|
574.00 7.05 77.0
379.50 5.73 63.0
444.00 6. 201 68.0
513.50 6.67 73.0
588.00 7.14 78. 0
390.50 5.81 64.0
456.00 6.28 69.0
526.50 6.75 74.0
602.00 7.22 79.0
401.50 5.88
468.00 6.36
539.50 6.83
616.00 7.30
15 81.0
652.50 7.52) 82.0
667.50 7.60 83.0 682.50 7.69 84.0 697.50 7.77
16 86.0 736.00 7.99 87.0 752.00 8.07 88.0 768.00 8.16 89.0 784.00 8.24
17 91.0
824.50 8.45 92.0 841, 50 8.54 93.0] 858.50 8.62 94.0 875.50 8.71
18 96.0 918.00 8.92 97.0 936.00 9.01 98.0 954.00 9.09 99.0 972.00 9.18
19 101. 01, 016. 50 9. 38 102. 01, 035. 50 9.47 103. 01, 054. 509. 56 104. 01, 073. 50 9.64
20 106. 01, 120, 00 9.85 107.01, 140. 00 9.94 108. 01, 160. 00₤10. 03₤109. 01, 180. 00/10. 11
21 111. 01, 228. 50 10. 32 112. 01, 249. 50 10. 40113. 01, 270. 50 10. 49 114. 01, 291. 50 10. 58
22 116. 01, 342.00 10. 78 117. 01, 364. 00 10. 87 118. 01, 386. 00 10. 96 119. 01, 408. 00 11.05
23 121. 01, 460. 50 11. 25 122. 01, 483. 50 11.34 123. 01, 506. 50 11. 43 124. 01, 529. 50 11. 51
24 126. 01, 584. 00 11. 71 127.01, 608. 00 11. 80 128. 01, 632.00 11. 89 129. 01, 656. 00 11.98
25 131. 01, 712. 50 12. 18 132. 01, 737. 50 12. 27 133. 01, 762. 50 12. 36 134. 01, 787.50 12. 45
26 136. 01, 846. 00 12. 64 137. 01, 872. 00 12. 73 138. 01, 898. 00 12. 82 139. 01, 924. 00 12. 91
27 141. 01, 984. 50 13. 11 142. 02, 011. 5013. 20 143. 02, 038. 50 13. 29 144. 02, 065. 50 13. 38
28 146. 02, 128. 00 13. 57|147. 02, 156. 00 13. 66 148. 02, 184. 00 13. 75|149. 02, 212. 00|13. 84
29 151.02, 276. 50|14. 04|152. 02, 305. 50 14. 13 153. 02, 334. 5014. 22154. 02, 363. 50 14. 31
30 156. 02, 430. 0014. 50 157. 02, 460. 0014. 59 158. 02, 490. 00 14. 69 159. 02, 520. 00 14. 78
31 161. 02, 588. 50 14. 97 162. 02, 619. 50 15. 06 163. 02, 650. 50 15. 15 164. 02, 681. 50 15. 24
32 166. 02, 752. 00 15. 43 167. 02, 784. 00 15. 52 168. 02, 816. 00 15. 62 169. 02, 848. 00 15.71
33 171.02, 920. 50 15. 90 172. 02, 953. 50|15. 99|173. 02, 986. 50 16. 08 174. 03, 019. 50 16. 17
34 176. 03, 094. 00 16. 36 177.03, 128. 00 16. 45 178. 03, 162. 00|16. 55 179. 03, 196. 00 16. 64
35 181.03, 272. 5016. 83 182. 03, 307. 50|16. 92|183. 0|3, 342. 50 17.01 184. 03, 377. 50 17. 10
36 186. 03, 456. 00|17. 29|187. 03, 492. 00 17. 38|188. 0|3, 528. 00 17. 48 189. 03, 564. 00 17. 57
37 191. 03, 644. 50 17. 76 192. 03, 681. 50 17.85 193. 03, 718. 50 17. 94 194. 03, 755. 50 18.03
38 196. 03, 838.00 18. 22 197.03, 876. 00|18. 31|198. 03, 914. 0018. 41 199. 03, 952.00 18. 50
39 201. 04, 036. 50|18. 69|202. 04, 075, 50 18. 78 203. 04, 114. 50 18. 87 204. 0|4, 153. 50 18. 96
40 206.04, 240. 0019. 15 207. 04, 280. 00 19. 24 208. 04, 320. 00 19. 34209. 04, 360.00 19. 43
41 211. 04, 448. 50 19. 61 212. 04, 489. 50 19. 71|213. 0 4, 530. 50|19. 80|214. 04, 571. 50 19. 8y
42 216.04, 662. 00|20. 08/217. 04, 704. 00[20. 17|218. 0[4, 746. 00[20. 27|219. 04, 788. 00 20. 36
43 221. 04, 880. 50|20. 54|222. 04, 923. 50 20. 64₤223. 0|4, 966. 50|20. 73|224. 05, 009. 50 20.82
44 226. 05, 104. 00 21. 01 227. 05, 148. 0021. 10228. 05, 192. 00 21. 20 229. 05, 236. 00 21. 29
45 231. 05, 332. 50 21. 47 232. 05, 377. 50 21. 57 233. 05, 422. 50|21. 66|234. 05, 467. 50 21.75
46 236.05, 566. 00 21.94 237. 05, 612. 00 22. 03 238. 05, 658.00 22. 13|239. 05, 704. 00 22. 22
47 241. 05, 804. 50 22. 40 242. 05, 851. 50 22. 50 243. 05, 898. 50 22. 59 244. 05, 945. 50 22. 68
48 246. 06, 048. 00|22. 87|247. 06, 096. 00|22, 96₤248. 06, 144. 00|23. 06|249. 06, 192. 00 23. 15
49 251. 06, 296. 50|23. 33|252. 06, 345. 50|23. 43|253. 0|6, 394. 50 23. 52|254. 06, 443. 50 23. 61
50 256. 06, 550.00 23. 80₤257. 06, 600. 00 23. 89/258. 06, 650. 00|23. 98/259. 06, 700. 00₤24. 08
HYDRAULIC TABLES
193
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T T
A
T
A
T T
A
12
11 65.0
70.0
14
13 75.0
80.0
412.50 5.96 67.0
480.00| 6.43] 72. 0]
552.50 6.91 77.0
630.00 7.38 82.0
434.50 6.10 69.0
504.00 6.58 74.0
578.50 7.05 79.0
658.00 7.53 84.0
456.50 6.23] 71.0|
528.00 6.72 76.0
604.50 7.20 81.0
686.00 7.67 86.0
478.50 6.36
552.00 6.85
630.50 7.33
714.00 7.81
15 85.0
712.50 7.85 87.0
772.50 8.15 91.0|
802.50 8.29
896.00 8.77
994.50 9.25
742.50 8.00 89.0
16 90.0 800.00 8.32 92.0 832.00 8.48 94.0 864.00 8.63 96.0
17 95.0 892.50 8.79 97.0 926.50 8.95| 99.0 960.50 9.10 101.0
18 100.0 990.00 9.26 102. 01, 026. 00 9. 42 104. 01, 062.00 9. 57|106. 0 1,098.00 9.72
19 105. 01, 092. 50 9.73 107.01, 130. 50 9.89 109. 01, 168. 50 10. 05|111. 01, 206. 50|10. 20
20 110. 01, 200.00 10. 20 112. 01, 240. 00 10. 36 114. 01, 280.00 10. 52116. 01, 320.00 10. 67
21 115. 01, 312. 50 10. 66 117. 01, 354. 50 10. 83 119. 01, 396. 50 10. 99 121.01, 438. 50 11.14
22 120. 01, 430.00 11. 13 122. 01, 474. 00 11. 30124. 01, 518. 00 11. 46 126. 01, 562. 00 11.62
23 125. 01, 552. 50 11.60 127.01, 598. 50 11. 77 129. 01, 644. 50 11. 93 131. 01, 690. 50 12.09
24 130. 01, 680.00 12. 07 132. 01, 728. 0012. 23 134. 01, 776. 00 12. 40 136. 01, 824. 00 12. 56
25 135. 01, 812.50 12. 53 137. 01, 862. 50 12. 70 139. 01, 912. 50 12. 87 141. 01, 962. 50 13. 03
26 140.01, 950.00 13.00 142. 02, 002. 00 13. 17144. 02, 054.00 13. 34 146. 02, 106.00 13. 50
27 145. 02, 092. 50 13. 47 147.02, 146. 50 13. 64 149. 02, 200. 50 13. 80 151.02, 254. 50 13.97
28 150.02, 240.00 13. 93 152. 02, 296. 00 14. 10154. 02, 352. 00 14. 27 156. 02, 408. 00 14. 44
29 155. 02, 392. 50 14. 40 157. 02, 450. 50 14. 57 159. 02, 508. 50 14. 74 161. 02, 566. 50 14. 91
30 160.02, 550.00 14. 86 162. 02, 610. 00 15. 04 164. 02, 670.00 15. 21 166. 02, 730. 00 15. 38
31 165. 02, 712. 50 15. 33 167. 02, 774. 50 15. 51 169. 02, 836. 50 15. 68 171.02, 898. 50 15.84
32 170. 02, 880.00 15.80 172. 02, 944. 00 15. 97 174. 03, 008. 00 16. 14 176. 03, 072.00 16. 31
33 175.03, 052. 50 16. 26 177. 03, 118. 50 16. 44 179. 03, 184. 50 16. 61 181. 03, 250. 50 16.78
34 180.03, 230.00 16. 73 182. 03, 298. 00 16. 90 184. 03, 366. 00 17.08 186. 03, 434.00 17.25
35 185.03, 412. 50 17. 19187. 03, 482. 50 17. 37 189. 03, 552. 50 17. 54191. 03, 622. 50 17.72
36 190.03, 600.00 17. 66 192.03, 672. 00 17.84 194. 03, 744. 00 18. 01 196. 03, 816.00 18. 18
37 195.03, 792. 50 18. 12 197. 03, 866. 50 18. 30 199. 03, 940. 50 18. 48 201. 04, 014. 50 18. 65
38 200.03, 990.00 18. 59 202. 04, 066. 00 18. 77 204. 04, 142. 00 18. 94 206. 0 4, 218. 0019. 12
39 205.04, 192. 50 19.05 207. 04, 270. 50 19. 23 209. 04, 348. 50 19. 41 211. 04, 426. 50 19.58
40 210.04, 400.00 19. 52 212. 04, 480. 00 19. 70 214. 04, 560. 00 19. 88 216. 0 4, 640. 00 20.05
41 215.04, 612. 50 19.99 217.04, 694. 50 20. 17 219.04, 776. 50 20. 34 221. 04, 858. 50 20. 52
42 220.04, 830.00 20. 45 222. 04, 914. 00 20. 63 224. 04, 998. 00 20.81 226. 05, 082.00 20.98
43 225. 05, 052. 50 20. 92 227. 05, 138. 50 21. 10 229.05, 224. 50 21. 28 231. 05, 310. 50 21. 45
44 230. 05, 280.00 21. 38 232. 05, 368.00 21. 56 234. 05, 456. 0021. 74 236. 05, 544. 00 21. 92
45 235.05, 512. 50 21. 85 237. 05, 602. 50 22.03 239.05, 692. 50 22. 21 241. 05, 782. 50 22. 38
46 240.05, 750.00 22. 31|242. 0 5, 842. 00 22. 49 244. 05, 934. 00|22. 67|246. 06, 026. 00 22.85
47 245.05, 992. 50 22. 78 247. 06, 086. 50 22. 96 249. 06, 180. 50 23. 14 251. 06, 274. 50 23. 32
48 250.06, 240. 00 23. 24|252. 06, 336. 00 23. 42 254. 06, 432. 00 23. 60|256. 06, 528. 00 23. 78
49 255. 0 6, 492. 50 23. 71 257. 06, 590. 50 23. 89 259. 06, 688. 50 24. 07 261. 06, 786. 50 24. 25
50 260.06, 750.00 24. 17 262.06,850.00 24.35 264. 06, 950.00 24.54 54266
266. 07, 050.00 24.71
194
HYDRAULIC TABLES
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1—Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
↑
T
A
T T
A
*
T
A
T
་
11
73.0
12
78.0
500.50 6.48 75.0
576.00 6.97 80.0
13
83.0
656.50 7.46 85.0
14 88.0
742.00 7.94 90.0
522.50 6.59 77.0
600.00 7.09 82.0
682.50 7.58 87.0
770.00 8.07| 92.0
544.50 6.70 79.0
624.00 7.20 84.0
708.50 7.70 89.0
798.00 8.19 94.0
566.50 6.81
648.00 7.31
734.50 7.81
826.00 8.31
852. 50
15 93.0 832.50 8.43 95.0
8.56 97.0 892.50 8.68 99.0 922.50 8.80
16 98.0 928.00] 8.91 100.0 960.00 9.04 102.0 992.00 9.17 104. 01, 024.00 9.30
9.39|105. 0|1, 062. 50 9. 53 107. 01, 096. 50 9. 66 109. 01, 130. 50 9.78
9. 87110. 01, 170. 00 10. 01 112. 01, 206. 00/10. 14114. 01, 242.00 10. 27
10. 34 115. 01, 282. 50 10. 48 117. 01, 320. 50 10. 62 119. 01, 358. 50 10.75
17 103. 01, 028. 50
18 108. 01, 134. 00
19 113. 01, 244. 50
20 118. 01, 360. 00|10. 82|120. 0|1, 400. 00|10. 96|122. 0|1, 440. 00|11. 10|124. 01, 480.00 11. 24
21 123. 01, 480. 50|11. 29/125. 0|1, 522. 50|11. 44|127. 01, 564. 50|11. 58|129. 01, 606. 50 11. 72
22 128. 01, 606. 00 11. 77 130. 01, 650.00 11. 92132. 0/1, 694. 00 12. 06 134. 01, 738. 00 12. 20
23 133. 01, 736. 50|12. 24|135. 01, 782. 50 12. 39|137. 01, 828. 50|12. 54 139. 01, 874.50 12. 68
24 138. 01, 872. 00 12. 71 140. 01, 920. 00 12. 86 142. 01, 968. 00 13. 01 144. 02, 016. 00 13. 16
25 143. 02, 012. 50 13. 19 145. 02, 062. 50 13. 34 147. 02, 112. 50 13. 49 149. 02, 162. 50 13. 63
26 148. 02, 158. 00 13. 66 150. 02, 210. 00 13. 81 152. 02, 262. 00 13. 96154. 02, 314. 00 14. 11
27 153. 02, 308. 50 14. 13 155. 02, 362. 50 14. 28 157. 02, 416. 50 14. 44 159. 02, 470. 50 14. 58
28 158. 02, 464. 00 14. 60 160. 02, 520. 00 14. 76 162. 02, 576. 00 14. 91 164. 02, 632. 00 15. 06
29 163. 02, 624. 50|15. 07 165. 02, 682. 50 15. 23 167. 02, 740. 50|15. 38 169. 02, 798. 50|15. 53
30 168. 02, 790. 00 15. 54 170. 02, 850. 00 15. 70 172. 02, 910. 00 15. 85 174. 02, 970. 00|16. 01
31 173. 02, 960. 50 16. 01 175. 03, 022. 50|16. 17 177. 03, 084. 50 16. 33 179. 03, 146. 50 16. 48
32 178. 03, 136. 00 16. 48 180. 03, 200. 00|16. 64 182. 03, 264. 00 16. 80184. 03, 328.00 16. 95
33 183. 03, 316. 50 16. 95 185. 03, 382. 50 17. 11 187. 03, 448. 50 17. 27 189. 03, 514. 50 17. 42
34 188. 03, 502. 00 17. 41190. 03, 570. 00 17. 58192. 03, 638. 00 17. 74 194. 03, 706. 00 17. 90
35 193. 03, 692. 50 17. 88 195. 03, 762. 50 18. 05197. 03, 832. 50 18. 21 199. 03, 902. 50 18. 37
36 198. 03, 888.00 18. 35 200. 03, 960. 00 18. 52 202. 04, 032.00 18. 68 204. 04, 104. 0018. 84
37 203.04, 088. 50 18. 82 205. 04, 162. 50|18. 99207. 04, 236. 5019. 15209. 04, 310. 5019. 31
38 208. 04, 294. 00 19. 29 210. 04. 370. 0019. 45 212. 04, 446. 0019. 62214. 04, 522.00 19.78
39 213.04, 504. 50 19. 75 215. 04, 582. 5019. 92 217. 04, 660. 50 20. 09|219. 04, 738. 50|20. 25
40 218.04, 720. 00 20. 22|220. 04, 800. 00 20. 39 222. 04, 880.00 20. 56 224. 04, 960. 0020. 72
41 223.04, 940. 50 20. 69|225, 05, 022. 50|20. 86/227. 0|5, 104. 50|21. 02|229. 05, 186. 50|21. 19
42 228. 05, 166. 00 21. 16 230. 05, 250. 0021. 33 232. 05, 334. 00 21. 49 234. 05, 418. 00 21.66
43 233. 05, 396. 50 21. 62 235. 05, 482. 50 21. 79237. 05, 568. 50 21. 96 239. 05, 654. 50 22. 13
44 238. 05, 632. 00 22. 09 240. 05, 720. 00 22. 26 242. 05, 808. 00|22. 43|244. 05, 896. 00 22. 59
45 243. 05, 872. 50 22. 56 245. 0|5, 962. 50|22. 73 247. 06, 052. 50|22. 90|249. 06, 142. 50 23. 06
46 248. 06, 118. 00 23. 02 250. 0|6, 210. 00|23. 20 252. 06, 302. 00|23. 37|254. 06, 394. 0023. 53
47 253. 06, 368. 50 23. 49₤255. 06, 462. 50 23. 66257. 06, 556. 50|23. 83|259. 06, 650. 5024. 00
48 258. 06, 624. 00 23. 96 260. 06, 720. 0024. 13262. 06, 816. 0024. 30264. 06, 912.00 24.47
49 263. 06, 884. 50 24. 42|265. 06, 982. 50 24. 60 267. 07, 080. 50 24. 77 269. 07, 178. 50 24. 94
50 268. 07, 150. 00 24. 89 270. 07, 250.00 25. 06 272. 07, 350. 0025. 24 274. 07, 450.00 25. 40
HYDRAULIC TABLES
195
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T T
A
T
A
T
A
T
HR21
610.50 7.00 85.0
696.00 7.51 90.0
786.50 8.02 95.0
882.00 8.53 100.0
632.50 7.09 87.0
720.00 7.61 92.0
654.50 7.17
744.00 7.70
812.50 8.12 97.0
910.00 8.63 102.0
838.50 8.22
938.00 8.73
11 81.0 588.50 6.90 83.0
12 86.0 672.00 7.42 88.0
13 91.0 760.50 7.92 93.0
14 96.0 854.00 8.42] 98.0
15 101.0 952.50
16 106. 01, 056. 00
8.92 103.0 982. 509.03 105. 01, 012. 50 9. 14 107.01, 042. 50 9.24
9.41 108. 01, 088.00 9. 53110. 01, 120.00 9. 64112. 01, 152. 00 9.75
17 111. 01, 164. 50) 9. 91 113. 01, 198. 50 10. 03 115. 01, 232. 50 10. 14 117. 01, 266. 50 10.25
18 116. 01, 278.00 10. 40|118. 01, 314. 00 10. 52 120. 01, 350.00 10. 64 122. 01, 386. 00|10. 75
19 121.01, 396. 50 10. 88 123. 01, 434. 50|11. 01 125. 01, 472. 50|11. 13₤127. 01, 510. 50 11. 25
20 126. 01, 520. 00 11. 37 128. 01, 560. 00 11. 50 130. 01, 600.00 11. 62 132. 01, 640. 00 11.74
21 131.01, 648. 50 11.85 133. 01, 690. 50 11.98 135. 01, 732. 50 12. 11 137. 01, 774.50 12.23
22 136.01, 782.00 12. 33 138. 01, 826. 00 12. 47 140. 01, 870. 00 12. 59 142. 01, 914. 00 12.72
23 141. 01, 920. 50 12. 82 143. 01, 966. 50 12. 95 145. 02, 012. 50 13. 08/147. 02, 058. 50 13. 21
24 146. 02, 064. 00 13. 30 148. 02, 112. 00 13. 43 150. 02, 160. 00 13. 56 152. 02, 208.00 13.69
25 151.02, 212. 50 13. 77 153. 02, 262. 50 13. 91 155. 02, 312. 50 14. 05 157. 02, 362: 50 14. 18
26 156. 02, 366. 00 14. 25 158. 02, 418. 00 14. 39 160. 02, 470.00 14. 53 162. 02, 522. 00 14.66
27 161.02, 524. 50 14. 73 163. 02, 578. 50 14. 87 165. 02, 632. 50 15. 01 167. 02, 686. 50 15. 14
28 166.02, 688. 00 15. 20 168. 02, 744. 00 15. 35 170.02, 800.00 15. 49 172. 02, 856.00 15. 62
29 171.0 2,856. 50 15. 68 173. 02, 914. 50 15. 83 175. 02, 972. 50 15. 97 177. 03, 030. 50 16. 11
30 176. 03, 030. 00|16. 16|178. 03, 090.00 16. 30 180.03, 150.00 16. 44 182. 03, 210.00 16. 58
31 181.03, 208. 50 16. 63 183. 03, 270. 50 16. 78185. 03, 332. 50 16. 92 187. 03, 394. 50) 17.06
32 186. 03, 392. 00 17. 10|188. 03, 456. 00 17. 25|190. 03, 520.00 17. 40 192. 03, 584.00) 17. 54
33 191.03, 580. 50 17. 58 193. 03, 646. 50 17.73 195. 03, 712. 50 17.87 197.03, 778. 50 18.02
34 196.03, 774.00 18. 05 198. 03, 842.00 18. 20 200. 03, 910.00 18. 35 202. 03, 978.00 18. 49
35 201.03, 972. 50 18. 52 203. 0 4, 042. 50 18. 67 205. 04, 112. 50 18. 82 207.04, 182. 50 18.97
36 206.04, 176.00 18.99 208. 04, 248. 0019. 15210. 04, 320.00 19. 30 212. 04, 392. 00 19. 45
37 211.04, 384. 50 19. 46 213.04, 458. 50 19. 62 215. 04, 532. 5019. 77 217.04, 606. 50 19.92
38 216.04, 598. 00 19. 94218.04, 674.00 20. 09 220. 04, 750.00 20. 24 222. 04, 826.00 20.39
39 221.04, 816. 50|20. 41|223. 0 4, 894. 50 20. 56|225. 04, 972. 50|20. 72|227. 0|5, 050. 50|20. 87
40 226.05, 040.00 20. 88/228:05, 120.00 21.03 230. 05, 200.00 21.19 232.05, 280.00 21. 34
41 231.05, 268. 50 21. 35 233.05, 350. 50 21. 51 235. 05, 432.50 21. 66 237.05, 514. 50 21. 81
42 236.05, 502.00 21.82 238. 05, 586.00 21.98 240. 05, 670.00 22. 13 242. 05, 754. 00 22. 29
43 241.05, 740. 50 22. 29 243. 05, 826. 50 22. 45 245. 05, 912. 50 22. 60 247.05, 998. 50 22.76
44 246.05, 984. 00|22. 76|248. 06, 072. 00 22. 92₤250. 0|6, 160.00 23. 08 252. 0|6, 248. 00 23. 23
45 251.06, 232. 50|23. 23|253. 0|6, 322. 50|23. 39|255. 0|6, 412. 50 23. 55|257. 06, 502. 50 23. 70
46 256.0 6, 486.00 23. 70 258. 06, 578. 00 23. 86 260. 06, 670. 00 24. 02262. 06, 762.00 24. 17
47 261.06, 744. 50 24. 16 263. 06, 838. 50 24. 33 265. 06, 932. 50|24. 49|267. 0|7, 026. 50 24. 65
48 266. 07, 008. 00|24. 63|268. 07, 104. 00 24. 80 270. 07, 200. 00|24. 96/272. 0|7, 296. 00 25. 12
49 271.07, 276. 50 25. 10 273. 0|7, 374. 50|25. 27|275. 0|7, 472. 50|25. 43|277. 07, 570. 50|25, 59
50 276.07, 550.00 25. 57 278. 07, 650. 00 25. 74 280. 07, 750.00 25. 90 282. 0 7, 850. 00 26. 06
76.07,
7278.
74 28
|282.0|| 00 9026.
196
HYDRAULIC TABLES
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
A
T T
A
T
A
11
90.0
687.50 7.30 95.0 742.50 7.48 100.0| 797.50 7.65|105. 0 852.50 7.80
780.00 7.83|100.0 840.00 8.03 105. 0 900.00 8.21|110.0| 960.00 8.38
877.50 8.36 105. 0 942.50 8.57 110. 01, 007.50 8.76 115. 01, 072. 50 8.94
8.88 110. 01, 050. 00 9. 10 115. 01, 120.00 9.30 120. 01, 190.00 9.49
12 95.0
13 100.0
14 105. 0 980.00
9. 63 120. 01, 237. 50
15 110. 01, 087. 50 9. 39 115. 01, 162. 50
9.84 125. 01, 312. 50 10.04
16 115. 01, 200.00 9.90|120. 01, 280. 00|10. 15|125. 0|1, 360, 00 10. 37|130. 01, 440. 00 10. 58
17 120. 01, 317. 50|10. 41|125. 01, 402. 50|10. 66|130. 0|1, 487. 50 10. 89|135. 01, 572. 50 11. 11
18 125.01, 440. 00 10. 91 130. 01, 530. 00 11. 17 135. 01, 620.00 11. 41 140. 01, 710.00 11.64
19 130. 01, 567. 50 11. 42 135. 01, 662. 50 11. 68 140. 01, 757. 50 11. 93 145. 01, 852. 50 12.16
20 135. 01, 700.00 11. 91 140. 01, 800.00 12. 19145. 01, 900. 00 12. 44 150. 02, 000. 00 12. 68
21 140.01, 837. 50 12.41 145. 01, 942. 50 12. 69 150. 02, 047.50 12. 95 155. 02, 152, 50 13, 20
22 145. 01, 980. 00|12. 90/150. 02, 090. 00₤13. 19155. 02, 200. 00 13. 46|160. 0|2, 310. 00|13. 71
23 150.02, 127. 50 13. 39|155. 02, 242. 50 13. 69|160. 0|2, 357. 50|13. 96|165. 02, 472. 50|14. 22
24 155. 02, 280. 00|13. 88₤160. 02, 400. 00|14. 18165. 02, 520. 00|14. 46|170. 02, 640. 00 14. 73
25 160.02, 437. 50|14. 37|165. 0|2, 562. 50|14. 67|170. 0|2, 687. 50 14. 96|175. 02, 812. 50 15. 23
26 165. 02, 600. 00 14. 86 170.02, 730.00 15. 17 175. 02, 860. 00 15. 46 180. 02, 990. 00 15. 74
27 170. 02, 767. 50 15. 34 175. 02, 902. 50 15. 66 180. 03, 037. 50 15. 95 185. 03, 172. 50 16. 24
28 175. 02, 940. 00 15. 82 180. 03, 080. 00 16. 14 185. 03, 220.00 16. 45190. 03, 360.00 16. 73
29 180.03, 117. 50 16. 31 185. 0|3, 262. 50|16. 63|190. 0|3, 407. 50|16. 94|195. 03, 552. 50|17. 23
30 185. 03, 300.00 16. 79 190. 03, 450. 0017. 12195. 03, 600.00 17. 43 200. 03, 750.00 17.73
31 190.03, 487. 50 17. 27 195. 03, 642. 50 17. 60 200. 03, 797. 50|17. 92 205. 03, 952. 50 18. 22
32195.03, 680. 00|17. 75|200. 0|3, 840. 00|18. 09|205. 04, 000. 00 18. 41 210. 04, 160. 00 18. 71
33 200. 03, 877. 50 18. 23 205. 04, 042. 50 18. 57 210. 04, 207. 50 18. 89 215. 04, 372. 50 19. 20
34 205. 04, 080. 00 18. 71 210. 04, 250.00 19. 05215. 04, 420.00 19. 38 220. 04, 590.00 19. 69
35210.04, 287. 50 19. 19215. 04, 462. 50 19. 53 220. 04, 637. 50 19.86 225. 04, 812. 50 20. 18
36 215.04, 500.00 19.66|220. 0|4, 680. 00|20. 01|225. 0|4, 860. 00|20. 35|230. 05, 040. 00 20. 67
37 220.04, 717. 50 20. 14 225. 04, 902. 50 20. 49/230. 05, 087. 50 20. 83 235. 05, 272. 50 21. 15
38 225. 04, 940. 00 20. 61 230. 05, 130. 00 20. 97|235, 05, 320. 00 21. 31 240. 05, 510.00 21.64
39 230.05, 167. 50 21.09 235. 05, 362. 50 21. 45 240. 05, 557. 50 21. 79 245. 05, 752. 50 22. 12
40 235.05, 400. 00 21. 56₤240. 05, 600. 00 21. 93 245. 05, 800.00 22. 27 250. 06, 000. 00 22. 61
41 240.05, 637. 50 22. 04 245. 05, 842. 50 22. 40|250. 06, 047. 50 22. 75 255. 06, 252. 50 23. 09
42 245. 05, 880.00 22. 51 250. 06, 090. 00 22. 88 255. 06, 300. 00 23. 23 260. 06, 510. 00 23.57
43 250. 06, 127. 50 22.99 255. 06, 342. 50 23. 36 260. 06, 557. 50 23. 71 265. 06, 772. 50 24.05
44 255. 06, 380.00 23. 46 260. 06, 600. 00 23. 83 265. 06, 820.00 24. 19270. 07, 040. 00 24. 53
45 260. 06, 637. 50 23. 93 265. 06, 862. 50 24. 31 270. 07, 087. 50|24. 67|275. 07, 312. 50 25. 01
46 265. 06, 900.00 24. 41 270. 07, 130. 00 24. 78275. 07, 360. 00 25. 14 280. 07, 590. 00 25. 49
47 270.07, 167. 50 24.88 275. 07, 402, 50 25. 26|280. 0|7, 637. 50 25. 62|285. 07, 872. 50 25. 97
48 275. 07, 440. 00 25. 35|280. 07, 680. 00|25. 73|285. 0|7, 920. 00 26. 10 290. 08, 160. 00 26. 45
49 280. 07, 717.50 25. 82 285. 07, 962. 50 26. 20 290. 08, 207. 50 26. 57 295. 08, 452. 50 26. 93
50 285. 08, 000. 00 26. 29 290. 08, 250. 00 26. 68 295. 08, 500. 00 27. 05300. 08, 750.00 27. 41
HYDRAULIC TABLES
197
Table 11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Depth
A
Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
T
T
A
T T
A
T T
A
T
8. 30135. 0
8.91 140.0
9.52 145. 0
10. 11 150.0
1, 182. 50 8.49 145. 0
1, 320. 00 9. 13 150. 0
1, 462. 50 9.75 155. 0
1,610.00 10. 36 160. 0
11 115.0 962. 50
12 120. 01, 080. 00
13 125. 01, 202. 50
14 130. 01, 330.00
8.07 125. 01, 072. 50
8. 67 130. 01, 200.00
9.25 135. 01, 332. 50
9.82 140. 01, 470. 00
1, 292. 50 8.66
1, 440.00 9.31
1,592.50 9.95
1,750.00 10. 58
2,800.00 14. 16
2, 992. 50 14.73
3, 190.00 15. 30
3, 392. 50 15. 86
3, 600.00 16. 42
15135. 01, 462. 50 10. 39 145. 01, 612. 50 10.69 155. 0
16 140.01, 600.00 10. 95 150. 01, 760.00 11. 27 160. 0
17 145. 01, 742. 50 11. 50 155. 01, 912. 50 11, 84 165.0
18 150. 01, 890. 00 12. 04₤160. 02, 070. 00|12. 40[170. 0
19 155. 02, 042. 50 12. 58 165. 02, 232. 50|12.96 175.0
20 160. 02, 200.00 13. 12 170. 02, 400.00 13. 51 180. 0
21 165. 02, 362. 50 13. 65 175. 02, 572. 50 14. 05 185.0
22 170. 02, 530. 00 14. 18 180. 02, 750. 00 14. 59 190. 0
23 175. 02, 702. 50 14. 70 185. 02, 932. 50 15. 13 195.0
24 180. 02, 880.00 15. 22 190. 03, 120. 00 15. 66 200.0
25 185. 03, 062. 50 15. 74 195. 03, 312. 50 16. 19205. 0
26 190.03, 250.00 16. 25 200. 03, 510. 00|16. 71|210.0
27 195. 03, 442. 50 16. 76 205. 03, 712. 50 17. 24 215. 0
28 200. 03, 640.00 17. 27 210. 03, 920. 00 17.75 220.0
29 205. 03, 842. 50 17. 78 215. 04, 132. 50 18. 27 225. 0
30 210.04, 050.00 18, 28 220. 04, 350.00 18. 79 230. 0
31 215. 04, 262. 50 18. 78 225. 04, 572. 50 19. 30 235. 0
32 220.04, 480.00 19. 28/230. 04, 800.00 19.81 240.0
33 225.04, 702. 50 19. 78 235.05, 032. 50 20. 32 245.0
34 230.04, 930.00 20. 28 240. 05, 270.00 20.82 250.0
35 235.05, 162. 50 20. 78 245. 05, 512. 50 21. 33 255.0
36 240.05, 400.00 21. 27 250. 05, 760.00 21. 83 260.0
37 245.05, 642. 50 21. 76 255, 06, 012. 50 22. 33 265.0
38 250.05, 890.00 22. 26 260. 06, 270.00 22.83 270.0
39 255.06, 142. 50|22. 75|265. 06, 532. 50|23. 33 275.0
40 260. 06, 400.00 23. 24 270. 06, 800.00 23. 83 280. 07, 200.00 24. 37 290.0
41 265.06, 662. 50 23. 73 275. 07, 072. 50 24. 32285. 0|
42 270.06, 930.00 24. 22280. 07, 350.00 24.82 290.0
43 275.07, 202. 50 24. 70 285. 07, 632. 50 25. 31 295.0
44 280.07, 480.00 25. 19290. 07, 920. 00 25. 80 300.0
1,762. 50 10. 96|165.0 1,912. 50 11. 20
1,920. 0011. 55 170.0 2.080.00 11.81
2, 082. 50 12. 14175.0 2, 252. 50 12.41
2, 250.00 12. 72|180.0|| 2,430.00 13.00
2, 422. 50 13. 29 185.0 2,612. 50 13.58
2, 600.00 13. 85190.0
2, 782. 50 14. 41 195. 0
2, 970.00 14. 96 200. 0
3, 162. 50 15. 51 205. 0
3, 360.00 16. 06210. 0
3, 562. 50 16. 60|215.0
3, 770.00 17. 14|220.0
3, 982. 50 17. 67 225. 0
4,200.00 18. 20|230.0
4, 422. 50 18. 73 235. 0
4, 650.00 19. 25 240.0
4, 882. 50 19. 77 245. 0
5, 120.00 20. 29 250.0
5,362. 50 20. 81 255.0
5,610.00 21. 32 260.0
45 285. 07, 762. 50 25. 68 295. 08, 212. 50 26. 29 305. 0
46 290.08, 050.00 26. 16|300. 0|8, 510. 0026. 78310.0
47 295. 08, 342. 50 26. 64|305. 0|8, 812. 50|27. 27|315. 0
48 300. 08, 640. 00 27. 13310. 09, 120. 00 27.76 320.0
49 305.08, 942. 50 27. 61 315. 09, 432. 50|28. 25 325. 0
5,862.50 21. 84 265.0
6, 120.00 22. 35 270.0
6, 382. 50 22. 86 275.0
6,650.00 23. 36 280. 0
6, 922. 50 23. 87|285.0
7, 482. 50 24. 88 295.0
7, 770.00 25. 38 300.0
8, 062. 50 25. 88 305. 0
8, 360.00 26. 38310.0
8, 662. 50 26. 87 315. 0
8, 970. 00|27. 37|320.0
3,812. 50 16. 97
4,030.00|17. 52
4, 252. 50 18. 07
4, 480.00 18. 61
4, 712. 50 19. 14
4, 950.00 19.68
5, 192.50 20. 21
5, 440.00 20.74
5,692. 50 21.26
5,950.00 21. 79
6, 212. 50 22. 31
6, 480.00 22.83
6, 752. 50 23.34
7, 030.00 23.86
7, 312. 50 24. 37
7, 600.00 24.88
7, 892. 50 25. 39
8, 190.00 25. 90
8, 492. 50 26. 41
8,800.00 26.92
9, 112. 50 27. 42
9, 430.00₤27. 92
9, 282. 50 27. 87 325.0 9, 752. 50|28. 42
9, 600.00 28. 36330. 010, 080.00 28.92
9, 922. 50 28. 86 335. 0 10, 412. 50 29. 42
50 310. 09, 250.00 28. 09|320. 09, 750.00 28. 74 330. 010, 250.00 29. 35 340. 0 10, 750.00 29.92
198
HYDRAULIC TABLES
Table 11.
11.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Depth
Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
T
A
T
T
A
T
A
T
T
A
T
1, 622. 50
1,800. 00
1, 982. 50
2, 170.00 11. 11 200. 0
9.05 185.0
9.75 190.0
10. 43195. 0
11155.0 1, 402. 50 8.81 165. 0
12 160.0 1, 560.00 9.48 170. 0
13 165.0 1,722. 50 10. 13 175.0
14 170.0 1,890.00 10. 78 180.0
15 175.0 2,062. 50|11. 41|185.0
16 180.0 2,240. 00 12. 03|190.0
17 185.0 2,422. 50 12. 65 195.0
18 190.0 2,610.00 13. 25|200.0
19 195.0 2,802. 50 13. 85 205. 0
20 200.0
21 205. 0
22 210.0
23 215. 0
24 220.0
3,000. 00 14. 44 210. 0
3, 202. 50 15. 03 215.0
3, 410. 00 15. 61 220. 0
3, 622. 50 16. 18 225. 0
3,840. 00|16. 75|230. 0
25 225.0 4,062. 50 17.31 235.0
26 230.0 4,290.00 17.87 240.0
27 235.0 4,522. 50 18. 43 245. 0
28 240.0 4, 760. 00 18. 98 250. 0
29 245.0 5,002. 50 19. 53 255.0
80 250.0 5,250.00 20.07 260.0
31 255.0 5,502. 50 20. 61 265.0
32 260.0 5,760.00 21. 15 270.0
33 265. 06, 022. 50 21. 69 275.0
34 270.0 6, 290.00 22. 22 280.0
35 275.0 6,562. 50 22. 75 285.0
36 280.0 6,840.00 23. 28 290.0
37 285.0 7, 122. 50 23. 80 295.0
38 290.0 7, 410.00 24. 32 300.0
39 295.0 7, 702. 50 24. 85|305. 0
40 300.0 8,000.00 25. 36 310.0
41305. 0 8, 302. 50 25. 88 315.0
42 310.0 8, 610.00 26. 40 320. 0
43 315.0 8, 922. 50 26. 91 325.0
44 320.0 9, 240. 00 27. 42 330. 0
1, 512. 50 8.94 175.0
1, 680.00 9.62 180.0
1,852. 50 10. 29 185.0
2, 030.00 10.95 190.0
1, 732. 50 9.16
1, 920. 00 9.87
2, 112.50 10. 56
2, 310.00 11. 25
2, 212.50 11. 60 195.02, 362. 50 11.77 205.0 2, 512. 50 11.92
2,400.00 12. 23 200.0 2, 560.00 12. 42|210.0|||2, 720. 00 12. 58
2,592. 50 12. 86 205. 02, 762. 50 13.06 215.0| |2, 932. 50|13. 24
2,790.00 13.48 210.0 2,970.00 13. 69|220.0 3,150.00 13.88
2, 992. 50 14. 09 215.0 3, 182. 50 14. 32 225. 0
3, 200. 00 14. 70 220.0
3, 412. 50 15. 30 225. 0
3, 630.00 15.89 230.0
3, 852. 50 16. 47 235. 0
4,080.00 17.05|240.0
4, 312. 50 17.63 245.0
4, 550.00 18. 20 250.0
4, 792. 50 18. 76 255.0
5, 040.00 19. 33 260.0
5, 292. 50 19.88 265.0
5,550.00 20. 44 270.0
5, 812. 50 20. 99 275.0
6,080.00 21. 54 280.0
6, 352. 50 22.08 285.0
6, 630.00 22. 62 290.0
6, 912. 50 23. 16 295.0
7,200.00 23. 69 300.0
7, 492. 50 24. 23 305. 0
7,790.00 24.76 310.0
8,092.50 25. 29 315.0
3, 400. 00 14. 93 230. 0
3, 622. 50 15. 54 235. 0
3, 850.00 16. 14 240.0
4, 082. 50 16. 74 245. 0
4, 320.00 17.33 250.0
4,562. 50 17.92 255.0
4,810. 00 18. 50 260.0
5,062. 50 19.08 265. 0
5, 320.00 19. 65 270. 0
5, 582. 50 20. 21 275.0
5,850.00 20.78 280.0
6, 122. 50 21. 34 285.0
6, 400.00 21.89 290. 0
6, 682. 50 22. 45295.0
6, 970. 00 23.00 300.0
7, 262. 50 23. 54 305. 0
7, 560.00 24.09 310.0
7, 862. 50 24. 63 315. 0
8, 170.00 25. 17 320.0
8, 482.50 25.70 325.0
3, 372.50 14. 52
3, 600.00 15. 14
3, 832. 50 15.77
4,070.00 16. 38
4, 312. 50 16.99
4,560. 00|17. 59
4, 812.50 18. 19
5,070.00 18. 78
5, 332. 50 19.36
5, 600.00 19.94
5,872.50 20. 52
6,150.00 21.09
6, 432. 50 21. 66
6, 720.00 22. 23
7, 012. 50 22.79
7, 310.00 23. 35
7, 612. 50 23.90
7, 920.00 24. 45
8, 232.50 25.00
8, 550.00 25. 55
8,872.50 26.09
8, 400.00 25.81 320.0 8,800.00 26. 24 330. 0 9, 200.00 26. 64
8, 712. 50 26. 34 325. 0 9, 122. 50 26. 77 335.0 9, 532.50 27. 17
9, 030. 00 26.86 330.0 9, 450. 00 27.30 340.0 9, 870.00 27. 71
9, 352.50 27. 38335. 0 9, 782. 50 27. 83 345. 010, 212. 50 28. 25
9, 680.00 27. 90 340. 010, 120. 00 28. 35 350. 010, 560.00 28.78
45 325.0 9,562. 50 27. 93|335. 010, 012. 50 28. 42|345. 010, 462. 50 28. 88|355. 010, 912. 50 29. 31
46 330.0 9,890. 00 28. 44|340. 010, 350. 00|28. 93|350. 010, 810. 00|29. 40|360. 0|11, 270. 00 29.84
47 335. 010, 222. 50 28. 95 345. 010, 692. 50 29. 45 355. 0|11, 162. 50 29. 92|365. 011, 632. 50 30. 36
48 340.010, 560. 00 29. 46 350. 011, 040. 00 29. 96|360. 0|11, 520. 00:30. 44/370. 012, 000. 00 30.89
49 345. 010, 902. 50 29. 96|355. 011, 392. 50 30. 47365. 011, 882. 50|30. 95 375. 0 12, 372. 50 31. 41
50 350. 011, 250.00 30. 47 360. 011, 750.00 30. 98 370. 012, 250.00 31. 47 380.0 12, 750.00 31.93
HYDRAULIC TABLES
199
Depth
Table 11.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
T
A
T
T
A
T
T
Τ
A
T
T
A
T
2, 160.00 10. 06/220. 0
2, 372. 50 10. 78 225. 0
2, 590.00 11.49 230. 0
2,812. 50 12. 19235. 0|
2, 280.00 10. 15 230. 0
2, 502. 50 10.88 235.0
2, 730.00 11. 60 240.0
11 195. 01, 842.50 9.25 205.01, 952. 50 9.33 215. 02, 062.50 9.41 225.0
12 200. 02, 040. 00 9.97 210.0
13 205. 02, 242. 50 10. 68 215. 0
14 210. 02, 450.00 11. 37 220.0
15 215. 02, 662. 50 12. 06 225. 0
16 220. 02, 880.00 12. 73 230. 03, 040. 00 12. 87|240.0
17 225. 03, 102. 50|13. 40 235. 0
18 230. 03, 330. 00 14. 05 240. 0
19 235. 03, 562. 50 14. 70 245. 0
3, 272. 50 13. 55|245. 0
3, 510. 0014. 21 250. 0
3, 752. 50 14. 87 255. 0
20 240.03, 800. 00 15. 34 250.0
21 245. 04, 042. 50 15. 97 255.0
22 250. 04, 290.00 16. 60 260. 0
23 255.04, 542. 50 17. 22|265. 0
24 260.04, 800.00 17.83 270. 0
25 265.05, 062. 50 18. 43 275. 05, 312. 50 18. 66 285. 0
26 270.05, 330.00 19. 03 280.0
27 275.05, 602. 50 19.63 285. 0
28 280. 05, 880.00 20. 22 290. 0
29 285.06, 162. 50 20. 81 295. 0
30 290.06, 450.00 21. 39|300.0
31 295.06, 742. 50 21. 97 305. 0
32 300. 07, 040. 00 22. 54|310. 0|
33 305. 07, 342, 50 23. 11|315. 0
34 310.07, 650.00 23. 68 320. 0
35 315.07, 962. 50 24. 24 325. 0
36 320. 08, 280. 00|24. 80|330. 0
37 325. 08, 602. 50|25. 36|335. 0
38 330. 08, 930. 00 25. 91340.0
39 335.09, 262. 50|26. 46|345.0
2, 962. 50 12. 30 245. 0
3, 200.00 13.00 250.0
3, 442. 50|13. 69|255.0
3, 690.00 14. 36 260. 0
3, 942. 50 15. 03 265. 0
4,000.00 15. 52 260. 04, 200.00 15. 69 270. 0
4, 252. 50 16. 16 265. 0 4, 462. 50 16. 34275. 0
4, 510.00 16. 80 270. 0 4, 730.00 16. 99 280. 0
4, 772. 50 17. 43 275. 05, 002. 50|17. 62|285. 0
5,040. 00 18. 05 280. 0 5, 280.00 18. 25 290. 0
5, 562. 5018. 88 295. 0
5, 850.00 19. 50 300. 0
6, 142. 50 20. 11305. 0
6, 440. 00 20. 72 310. 0
6, 742. 50|21. 33(315. 0
5, 590.00 19. 27 290. 0
5,872. 5019. 88 295. 0
6, 160.00 20. 48 300.0
6, 452. 50 21. 07305. 0
6, 750.00 21. 67 310.0
7, 052. 50 22. 25 315. 0
7, 360. 00|22. 83|320.0||
7, 672. 50 23. 41325. 0
7,990.00 23. 99330. 0
7,050.00 21. 92|320. 0
7, 362. 50 22. 52325. 0
7, 680.00 23. 11|330. 0
8, 002. 50 23. 70 335.0
8, 330.00 24. 28 340. 0
}
2, 172. 50 9. 48
2, 400.00 10. 23
2,632. 50 10.97
2,870. 00 11. 70
3, 112. 50 12. 41
3, 360. 00 13. 12
3, 612. 50|13. 81
3, 870. 00 14. 50
4, 132. 50 15. 18
4, 400.00 15. 84
4, 672. 50 16. 51
4, 950.00 17. 16
5, 232. 50|17. 81
5, 520.00 18. 45
5, 812. 50 19.08
6, 110.00 19. 71
6, 412. 50 20. 33
6, 720. 00 20.95
7, 032. 50 21. 56
"
7, 350.00 22. 17
7, 672. 50 22. 77
8, 000. 00 23. 37
8, 332. 50 23. 96
8, 670.00 24. 55
8, 312. 50 24. 56 335.0 8, 662. 50 24. 86345. 0 9, 012. 50 25. 14
8, 640.00 25. 13340. 0 9, 000. 00|25. 43|350. 0 9, 360. 00 25. 72
8, 972. 50 25. 69|345. 0|| 9, 342. 50|26. 01|355. 0 9, 712. 50 26. 30
9, 310.00 26. 25|350. 0 9, 690.00 26. 57|360. 0|10, 070. 00 26. 88
9, 652. 50 26. 81|355. 0|10, 042. 50 27. 14|365. 010, 432. 50 27. 45
40 340.09, 600.00 27.01 350. 010, 000. 00 27, 37 360. 0 10, 400.00 27. 70 370. 010, 800. 00 28.02
41 345. 09, 942. 50 27. 56 355. 010, 352. 50 27.92 365. 010, 762. 50 28. 26 375. 011, 172. 50 28. 59
42 350. 0 10,290.00 28. 10 360. 010, 710. 00 28. 47 370. 011, 130. 00 28. 82 380. 011, 550.00 29. 15
43 355. 0 10,642.50 28. 64 365. 011, 072. 50|29. 02375. 011, 502. 50 29. 38 385. 0|11, 932. 50 29. 72
44 360. 0 11,000.00 29. 18 370. 011, 440. 00 29. 56 380. 011, 880. 00 29. 93|390. 012, 320.00 30. 27
45 365.0 11,362.50 29. 72|375. 0|11, 812. 50 30. 11|385. 012, 262. 50|30. 48j395. 0|12, 712. 50 30.83
46 370.0 11,730.00 30. 25380. 0 12, 190.00 30. 65₤390. 0 12, 650.00 31. 03 400. 013, 110. 0031. 38
47 375.0 12,102.50 30. 79 385. 012, 572. 50 31. 19395. 013, 042. 50 31. 57 405. 0 13, 512. 50 31.94
48 380. 0 12,480.00 31. 32390. 012, 960. 0031. 73400. 0|13, 440, 0032, 12410. 013, 920. 00 32. 49
49 385.0 12,862.50 31.85 395. 013, 352. 50 32. 26 405. 013, 842. 50 32. 66 415. 014, 332. 50 33. 03
50 390. 0 13,250.00 32. 38 400.013, 750.00 32.80 410. 0 14, 250.00 33. 201420. 014, 750. 00 33. 58
38/400.
20420.014,
200
HYDRAULIC TABLES
Table 11.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 2½ to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
Τ
A
T
T
Å
T
39
48
CRIL 20*** 222** RARA2 A-83 1988 ***** *****
11
235.0 2, 282. 50
9.54
245.0 2,392. 50
9.60
255.0 2,502. 50
9.65
12
240.0 2,520. 00
10.30
250.0 2,640. 00
10.37
260.0 2, 760. 00
10.43
13 245.0 2,762, 50
11.05
255.0 2,892. 50
11. 12
265. 0 3,022. 50
11. 19
14
250.0 3,010. 00
11.79
260.0 3, 150.00
11.87
270.0 3, 290. 00
11.95
15 255.0 3, 262. 50
12. 51
265.0 3, 412. 50
12.60
275.0 3,562. 50
12.69
16
260.0 3, 520. 00
13. 23
270.0 3,680. 00
13.33
280.0 3,840. 00
13.42
17
265.03, 782. 50
13.93
275.0 3,952. 50
14.04
285.0 4,122. 50
14. 14
18
270. 0 4, 050. 00
14.62
280.0 4, 230.00
14.74
290.0 4, 410. 00
14.85
19
275.0 4, 322, 50
15. 31
285. 0 4, 512. 50
15. 44
295.0 4,702. 50
15.55
20
280.0 4,600.00
15.99
290.0 4,800.00
16. 12
300.0 5,000.00
16.25
21
285.0 4,882, 50
16.66
295.0 5,092. 50
16.80
305.05, 302. 50
16.94
290.05, 170.00
17.32
300.0 5,390.00
17.47
310.05, 610. 00
17.62
23
295.0 5, 462.50
17.98
305. 0 5,692.50
18. 14
315.0❘ 5, 922. 50|
18.29
24
300.0 5,760.00
18.63
310.0 6,000.00
18.79
320.0| 6, 240. 00
18.95
25
305.06, 062. 50
19.27
315.06, 312. 50
19.45
325.0 6, 562. 50
19.61
26
310.0 6, 370.00
19.915
320.0 6, 630.00
20.09
330.0 6,890.00
20.26
27
315.0 6, 682. 50
20.54
325.0 6, 952. 50
20.73
335.0 7, 222. 50
20.91
28
320.0 7,000.00
21.16
330. 0 7, 280.00
21.36
340.0 7, 560. 00
21.55
29
325.0 7, 322. 50
21.78
335.0 7,612. 50
21.99
345.0 7,902. 50
22. 19
30
330.0 7,650.00
22.40
340.0 7, 950.00
22.61
350.0 8, 250.00
22.82
31 335.0 7,982, 50
23.01
345.0 8, 292. 50
23. 23
355.0 8, 602. 50
23.44
32
340.0 8, 320.00
23.61
350. 08, 640. 00
23.85
360.0 8,960.00
24.06
33
345. 0 8,662.50
24. 22
355.0 8, 992. 50
24. 46
365.0 9,322, 50
24.68
34
350. 0 9, 010.00
24.81
360. 0 9, 350. 00
25.06
370.0 9,690.00
25.29
35 355.0 9,362, 50
25.41
365. 0| 9, 712. 50|
25.66
375.0 10, 062, 50
25.90
36
360.0 9,720.00
26.00
370.0 10,080.00
26.26
380.0 10, 440. 00
26.51
37
365.010, 082. 50
26.59
375.0|10, 452. 50|
26.85
385.0 10, 822. 50
27.11
38
370.010, 450.00
27.17
380.0 10, 830. 00
27.44
390.0|11, 210. 00|
27.70
375. 010, 822, 50
27.75
385. 011, 212. 50
28.03
395.0|11, 602. 50
28.30
40
380. 0 11, 200.00
28.33
390. 011, 600.00
28.61
400. 0/12, 000. 00
28.89
41 385. 011, 582. 50
28.90
395. 011, 992. 50
29.19
405. 012, 402, 50
29.47
42
390. 011, 970.00
29.47
400. 012, 390.00
29.77
410. 012, 810.00
30.06
43
395. 012, 362. 50
30.04
405. 012, 792. 50
30.35
415. 013, 222. 50
30.64
44
400. 0 12, 760. 00
30.60
410. 013, 200. 00
30.92
420. 0 13, 640. 00
31.22
46
45 405. 0 13, 162, 50
410. 013, 570.00
31. 17
415. 0 13, 612. 50
31.49
425. 0 14,062,50
31.79
31.73
420. 014, 030. 00
32.05
430. 0 14, 490, 00
32.36
47 415. 0 13, 982. 50
32. 28
425. 014, 452. 50
32.62
435. 014, 922. 50
32.93
420. 0 14, 400.00
32.84
430. 014, 880.00
33.18
440.0 15, 360, 00
33.50
49
425. 0|14, 822. 50
33.39
435. 015, 312. 50|
33.74
445. 015, 802, 50
34.07
50
34.63
430. 01515,
, 250. 00|
450. 0/16, 250. 00
0|16,
33.94 440.015, 750.00
34.29
HYDRAULIC TABLES
201
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1
矗
​
Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
T
A
T
A
T
A
0.2
3.2
0.52 0.16
4. 2
0.72 0.17
5.2
0.92 0.17
6.2
1. 12 0.18
0.4
4. 4
1. 28
28
5. 4
1.68 .30
6.4
•
2.08 .32
7.4
2.48
.33
0.6
5.6
2.28 .39
6.6
2.88.42
.42
7.6
3.48
.45 8.6
4.08 .46
0.8
6.8
3.52.50
7.8
4.32.54 8.8
5. 12
57 9.8
•
5.92.59
1.0
8.0
5.00 .60
9.0
1.2
9.2
1.4
10. 4
1.6
11.6
1.8
12.8
6.72.70 10. 2
8.68 .80 11.4
10.88 .90 12.6
13.32 1.00 13.8
6.00 64 10.0
7.92.75 11. 2
10.08 .85 12.4
12.48.95 13.6|
15.12 1.05 14. 8
7.00
9.12.79 12.2
11.48 .89 13.4
14.08 1.00 14.6
16. 92 1.10 15.8
.68 11.0
8.00
.71
10. 32
.82
12.88
.93
15.68 1.04
18.72 1. 14
2.0
14. 0
2.2
15. 2
2.4
16.4
16.00 1.09 15.0
18.92 1.19 16.2
22.08 1.29 17.4
2.6
17.6
25.48 1.38 18.6
2.8
18.8
29.12 1.48 19.8
18.00 1.15 16.0
21.12 1.25 17.2
24.48 1.35 18.4
28.08 1.44 19.6
31.92 1.54 20.8
20.00 1.20 17.0
23.32 1.30 18. 2
22.00 1.25
25.52 1.35
26.88 1.40 19.4
30.68 1.50 20.6
34.72 1.60 21.8
29.28 1.45
33.28 1.55
37.52 1.65
3.0
20.0
33.00 1.57 21.0
3.2
21.2
3.4 22.4
37.12 1.67 22, 2
41.48 1.76 23.4
3.6
23.6
46.08 1.86 24.6
3.8 24.8
4.0 26.0
4.2 27.2
4.4 28.41
50.92 1.96 25.8
56.00 2.05 27.0
61.32 2.15 28.2
66.88 2.24 29.4
36.00 1.64 22.0
40.32 1.74 23. 2|
44.88 1.83 24.4
49.68 1.93 25.6
54.72 2.02 26.8
39.00 1.70) 23.0
43. 52 1.80 24.2
48.28 1.89 25.4
53. 28 1.99 26.6
58.52 2.09 27.8
42.00 1.75
46.72 1.85
51.68 1.95
56.88 2,05
62.32 2.15
4.6 29.6
72.68 2.34 30.6
4.8 30.8
78.72 2.43 31.8
60.00 2.12 28.0
65.52 2.22 29.2
71. 28 2.31 30.4
77.28 2.41 31.6
83.52 2.50 32.8
64.00 2.18 29.0
69.72 2. 28
75.68 2.38 31.4
81.88 2.47 32.6
88.32 2.57| 33.8
68.00 2.24
30.2
73.92 2.34
80.08 2.44
86.48 2.54
93.12 2.63
5,0 32.0
5.2 33.2
5.4 34.4
5.6 35.6
5.8 36.8
85.00 2.53 33.0
91.52 2.62 34.2
98.28 2.72) 35.4
105.28 2.81 36.6
112.52 2.91 37.8
90.00 2,60 34.0
96.72 2.70 35. 2
103. 68 2.79 36. 4
110.88 2.89 37.6
118.32 2.98 38.8
6.0 38.0
6.2 39.2
6. 4
40.4
6.6 41.6
6.8 42.8
120.00 3.00 39.0
126.00 3.08 40.0
127.72 3.10 40.2
133.92 3.17 41. 2
135.68 3.19 41. 4
142.08 3.27 42.4
143.88 3.29 42,6
152.32 3.38 43.8
150.48 3.36 43.6
159.12 3.46 44.8
95.00 2.67 35.0
101.92 2.76 36.2
109.08 2.86] 37.4
116.48 2.96 38.6
124.12 3.05 39.8
132.00 3.15 41.0
140. 12 3.24 42.2
148. 48 3.34 43.4
157.08 3.43 44.6
165.92 3.53 45.8
100.00 2.73
107.12 2.83
114.48 2.92
122.08 3.02
129.92 3.12
138.00 3.21
146.32 3.31
154.88 3.41
163.68 3.50
172.72 3.60
7.0 44.0
7.5 47.0
8.0 50.0
8.5 53.0
9.0 56.0
9.5 59.0
10.0 62.0
10.5 65.0
161.00 3.48 45.0
183.75 3.72 48.0
208.00 3.95 51,0
233.75 4.19 54,0
261.00 4.43 57.0
168.00 3.55 46.0
191.25 3. 79
216.00 4.03 52.0
242.25 4.27 55.0
270.00 4.51 58.0
49.0
175.00 3.63 47,0
198.75 3.86 50.0
224.00 4.10 53.0
250.75 4.34 56.0
279.00 4.58 59.0
182.00 3.69
206.25 3.93
232.00 4.17
259.25 4.41
288.00 4.65
289.75 4.67 60.0
320.00 4.90 63.0
351.75 5,14 66. 0
299.25 4.74 61.0
330.00 4.98 64.0
362.25 5.22 67.0
308.75 4.82 62.0
340.00 5.06 65.0
372.75 5.29 68.0
318. 25 4.89
350.00 5.13
383.25 5.37
563189°-44-
-14
202
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
-
Τ
A
૧
T
A
Τ
A
до T
A
T
ร
0.2 7.2
0.4 8.4
1.32 0.18 8.2
2.88
.34 9.4
0.6 9.6
4. 68
.48 10.6
•
0.8 10.8
6.72
.61 11.8
1.52 0.18
3.28.34 10.4
5. 28 49 11.6
7.52
9.2
1.72 0.19 10. 2
1.92 0.19
3.68 .35 11.4
4.08 .35
5.88
.50 12.6
6.48 .51
.62 12.8.
8.32
.64 13.8
9.12 .65
1.0 12.0
9.00
.73 13.0
10.00
.75 14.0|
1.2 13.2
1.4 14.4
1.6 15.6
11.52 .85 14. 2
14.28 .96 15.4
17.28 1.07 16.6|
1.8
16. 8
20.52 1.18 17.8
12. 72.87 15.2
15.68.99 16.4
18. 88 1.10 17.6
22. 32 1.21 18.8
11.00 .77| 15.0
13.92 .89 16.2
17.08 1.01 17.4
20.48 1.13 18.6
24.12 1.24 19.8
12.00 78
15.12.91
18.48 1.04
22.08 1.15
25.92 1.27
2.0 18.0
2.2 19.2
2.4
20.4
2.6 21.6
2.8
22.8
24.00 1.29 19.0
27.72 1.39) 20.2
31.68 1.50 21.4
35.88 1.60 22.6
40.32 1.70 23.8
26.00 1.32| 20.0
29.92 1.43] 21.2|
34.08 1.54| 22.4|
38. 48 1.64| 23.6|
43.12 1.75 24.8
28.00 1.36 21.0
32. 12 1.47 22.2
36. 48 1.57 23.4
41.08 1.68| 24.6|
45.92 1.79 25.8
30.00 1.39
34.32 1.50
38.88 1.61
43.68 1.72
48.72 1.82
3.0 24.0
45.00 1.80 25.0
3.2
25. 2
49.92 1.90 26.2
3.4
26.4
3.6
27.6
55.08 2.00 27.4
60.48 2.10 28.6
3.8 8
28.8
66.12 2.20 29.8
48.00 1.85 26.0
53.12 1.95 27.2
58.48 2.05| 28.4|
64.08 2.15| 29.6|
69.92 2.25 30.8
51.00 1.89 27.0
56.32 1.99 28. 2
61.88 2.10 29.4
67. 68 2.20| 30.6
73.72 2.30 31.8
54.00 1.93
59.52 2.04
65.28 2.14
71.28 2.24
77.52 2.35
4.0
30.0
4.2
31. 2
4.4
32.4
4.6 33.6
4.8 34.8
72.00 2.30 31.0
78.12 2.40 32. 2
84.48 2.50 33.4
91.08 2.60 34.6
97.92 2.69 35.8
5.0 36.0
105.00 2.79 37.0
5.2 37.2
112.32 2.89 38. 2
5.4 38.4
119.88 2.99 39. 4
5.6 39.6
127.68 3.08 40.6
5.8 40.8
135.72 3.18 41.8
110.00 2.85 38.0
117,52 2.95 39.2
125.28 3.04 40. 4
133. 28 3.14 41.6
141. 52 3.24 42.8
76.00 2.35 32.0
82.32 2.45 33. 2
88.88 2.55| 34.4|
95.68 2.65 35.6
102.72 2.75 36.8
80.00 2.40 33.0
86. 52 2.50 34. 2
93.28 2.60 35. 4
100.28 2.70 36.6
107.52 2.80 37.8
115.00 2.901 39.0
122.72 3.00 40.2
130. 68 3.10 41.4
138.88 3.20 42.6
147.32 3.30 43.8
84.00 2.45
90.72 2.55
97.68 2.65
104.88 2.75
112. 32 2.85
120.00 2.95
127.92 3.05
136.08 3. 15
144.48 3.25
153.12 3. 35
sess
1248 00
6.2
6.0 42.0
43.2
144.00 3.28 43.0
152.52 3.37 44. 2
6.4
44. 4
161. 28 3.47 45.4
6.6
45. 6.
6.8
46.8
170.28 3.57 46.6
179.52 3.66 47.8
150.00 3.34| 44.0
158.72 3.43 45.2
167.68 3.53 46.4
176.88 3.63 47.6
186.32 3.73 48.8
156.00 3.40] 45.0|
164.92 3.49 46.2
174.08 3.59 47.4
162.00 3.45
171.12 3. 55
180.48 3.65
183.48 3.69 48.6
190.08 3.75
193.12 3.791 49.8
199.92 3.84
7.0 48.0
189.00 3.76| 49.0
7.5 51.0
213.75 4.00 52.0
196.00 3.82 50.0
221.25 4.06 53.0
8.0 54.0
8.5 57.0
9.0 60.0
240.00 4.24 55.0
267.75 4. 48
297.00 4.72 61.0
58.0
248.00 4.31| 56.0
276.25 4.55 59.0
306.00 4.79 62.0
203.00 3.88 51.0
228.75 4.13 54.0
256.00 4.37 57.0
284.75 4.61 60.0
315.00 4.85 63.0
210.00 3.94
236.25 4.19
264.00 4.43
293.25 4.67
324.00 4.91
9.5 63.0
327.75 4.96 64.0
10.0
66.0
360.00 5. 20 67.0
337.25 5.03 65.0
370.00 5.27 68.0
346.75| 5.09| 66.0
380.00 5.33 69.0
356.25 5.16
390.00 5.40
10. 5
425.25 5.64
69.0
414.75 5.57 72.0
393.75 5.44 70.0
404.25 5.51 71.0
HYDRAULIC TABLES
203
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1—Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
A
T
Τ
A
T T
A
T
0.2 11.2
0.4 12.4
0.6 13.6
2.12 0.19 13.2
4.48 .36 14.4
2.52 0.19] 15.2]
5.28 .36 16.4
0.8 14.8
7.08
9.92
.51 15.6
.66 16.8
8.28
.52 17.6
11.52
.68 18.8
1.0 16.0
1.2 17.2
1.4 18.4
1.6 19.6
1.8 20.8
13.00 80 18.0
16.32 93 19.2
19.88 1.05 20.4
23.68 1.18 21.6
27.72 1.30 22.8
15.00 .82[ 20.0]
18.72 .96 21.2
22.68 1.09 22.4
26.88 1.22 23.6
31.32 1.34 24.8
2.92 0.19 17.2
6.08 .37 18.4
9.48.53 19.6
13.12.69 20.8
17.00 84 22.0
21.12.98 23.2
25. 48 1.11 24.4
30.08 1.25] 25.6
34.92 1.38 26.8
19.00 .85
23.52 1.00
28.28 1.14
33.28 1.27
38.52 1.41
3.32 0.19
6.88
10.68 .54
14.72
.37
.70
2.0
22.0
2.2 23.2
2.4
24. 4
2.6
2.8 26.8
25.6
32.00 1.41 24.0
36.52 1.53 25.2
41.28 1.64 26.4
46.28 1.75 27.6
51.52 1.86 28.8
36.00 1.46 26.0
40.921.58 27.2
46.08 1.70 28.4
51.48 1.81 29.6
57.12 1.92 30.8
40.00 1.50 28.0
45.32 1.62 29. 2
44.00 1.54
49.72 1.66
50.88 1.74 30, 4
55.68 1.79
56.68 1.86 31.6
62.72 1.98 32.8
61.88 1.91
68.32 2.03
3.0 28.0
3.2 29.2
3.4 30.4
57.00 1.97 30.0
62.72 2.07 31.2
68.68 2.18| 32.4|
3.6 31.6
3.8 32.8
74.88 2.29| 33.6
81.32 2.39 34.8
63.00 2.03 32.0
69.12 2.14 33.2
75.48 2.25 34.4
82.08 2.36] 35.6|
88.92 2.47 36.8
69.00 2.09 34.0
75.52 2.21| 35.2|
82.28 2.32 36.4
89.28 2.43 37.6
96.52 2.54 38.8
75.00 2.14
81.92 2.26
89.08 2.38
96.48 2.49
104.12 2.60
4.0
24.0
88.00 2.49 36.0
4.2
35.2
4.4
36.4
4. 6
37.6
4.8
38.8
94.92 2.60 37.2
102.08 2.70 38.4
109.48 2.80 39.6]
117.12 2.90 40.8
96.00 2.57 38.0
103.32 2.68 39.2
110.88 2.78] 40.4|
118.68 2.89 41.6
126.72 2.99 42.8
104.00 2.65 40.0
111.72 2.75 41.2
119.68 2.86 42.4
127.88 2.97 43.6]
136.32 3.07 44.8
112.00 2.71
120.12 2.82
128.48 2.93
137.08 3.04
145.92 3.15
5.0
40.0
5.2 41.2
125.00 3.00 42.0
133. 12 3. 10
43.2
5.4 42.4
141.48 3. 201 44. 4
135.00 3.09 44.0
143.52 3.20 45. 2
152.28 3.30 46.4
5.6 43.6
150.08 3.30 45.6
5.8
44.8
158.92 3.40 46.8
161.28 3.40 47.6
170.52 3.50 48.8
145.00 3.18 46.0
153.92 3.28 47.2
163.08 3.39 48.4
172.48 3.49 49.6
182.12 3.59 50.8
155.00 3.25
164.32 3.36
173.88 3.47
183.68 3.57
193.72 3.68
6.0
6.2 47.2
46.0
6.4 48.4
6.8
7.0 52.0
7.5 55.0
8.0 58.0
8.5 61.0
9.0 64.0
9.5
67.0
10.0 70.0
6.6 49.6
50.8
168.00 3.50 48.0
177.32 3.60 49.2
186.88 3.70 50.4
196.68 3.80 51.6
206.72 3.90 52.8
180.00 3.60) 50.0|
189.72 3.70 51.2
199.68 3.81 52.4|
209.88 3.91 53.6
220.32 4.01 54.8
192.00 3.70] 52.0
202. 12 3.80 53.2
212.48 3.90 54.4
223.08 4.00 55.6
233.92 4. 10 56.8
204.00 3.78
214.52 3.89
225.28 3.99
236.28 4.09
247.52 4.19
217.00 4.00 54.0
243.75 4. 24| 57.0
272.00 4.49 60.0
301.75 4.73 63.0
333.00 4.98 66.0
231.00 4.11 56.0
258.75 4.35 59.0
288.00 4.60 62.0
318.75 4.85 65.0
351.00 5.091 68.0
245.00 4.20 58.0
273.75 4. 46 61.0
304.00 4.71 64.0
335.75 4.96 67.0
369.00 5.20 70.0
259.00 4.30
288.75 4.55
320.00 4.81
352.75 5.06
387.00 5.31
365.75 5.22 69.0
400.00 5.46 72.0
72.0
384.75 5.34 71.0
420.00) 5.58| 74. 0
403.75 5.45 73.0
440.00 5.70 76.0|
422.75 5.56
460.00 5.80
10.5 73.0
498.75 6.05
435.75 5.70 75.0
477.75 5.94 79.0
456.75 5.83 77.0
204
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T Τ
A
T
T
A
T
A
T
0.2 19.2
0.4 20.4
0.6 21.6
0.8 22.8
3.72 0.19 21.2
7.68 .37 22.4
11.88.55| 23.6|
16.32.71] 24.8]
4.12 0.19 23. 2
8.48 .38 24.4
4.52 0.19 25.2
4.92 0.19
9.28 .38 26.4
10.08 .38
13.08
.55 25.6
17.92
.72 26.8
14.28
19.52
.55] 27.6
15.48 .56
.72 28.8
21.12 .73
1.0 24.0
21.00 86 26.0
23.00
.87 28.0
1.2 25. 2
25.92 1.01 27. 2
1.4 26. 4
31.08 1.16 28.4
1.6 27.6
1,8 28.8
36.48 1.30 29.6
42.12 1.43 30.8
28.32 1.03 29, 2
33.88 1.17 30.4
39.68 1.32] 31.6
45.72 1.46 32.8
25.00 .88 30.0
30.72 1.04 31. 2
36.68 1.19] 32.4
42.88 1.34 33.6
49.32 1.48 34.8
27.00
33.12 1.05
.89
39.48 1.20
46.08 1.35
52.92 1.50
2.0 30.0
2.2 31.2
2.4 32.4
2.6 33.6
48.00 1.57|| 32.0
54.12 1.70 33.2
60.48 1.82 34.4
67.08 1.95| 35.6|
2.8 34.8
73.92 2.07 36.8
52, 00 1.59 34.0
58.52 1.73 35. 2
65. 28 1.86 36.4
72.28 1.98 37.6
79.52 2.11 38.8
56.00 1.62 36.0|
62.92 1.75 37.2
70.08 1.88 38.4
77.48 2.02 39.6
85.12 2.14 40.8
60.00 1.64
67.32 1.78
74.88 1.91
82.68 2.04
90.72 2.18
3.0 36.0
81.00 2.19 38.0
3.2 37.2 88.32 2.31 39.2
3.4 38.4 95.88 2.43] 40.4
3.6 39.6 103.68 2.54 41.6
3.8 40.8 111.72 2.66 42.8
4.0 42.0
4.2 43.2
4.4 44. 4
4.6 45.6
4.846.8
87.00 2.23| 40.0
94.72 2.35 41.2
102.68 2.47 42. 4
110.88 2.59 43.6
119.32 2.71 44.8
93.00 2.27 42.0
101.12 2.39 43.2
109.48 2.52 44.4|
118.08 2.64] 45.6|
126.92 2.76 46.8
99.00 2.30
107.52 2.43
116.28 2.56
125.28 2.68
134.52 2.80
120.00 2.77 44.0
128.52 2.88 45.2
137.28 3.00] 46.4|
146.28 3.11 47.6
155. 52 3. 22 48.8
128.00 2.83| 46.0|
136.92 2.94] 47.2
146.08 3.05 48.4
155.48 3.17 49.6
165. 12 3.28 50.8
136.00 2.881 48.0]
145.32 2.99] 49.2
154.88 3.11 50.4
164.68 3.22|| 51.6
174. 72 3.34 52.8
144.00 2.92
153.72 3.04
163.68 3.16
173.88 3.28
184.32 3.39
5.0 48.0
5. 249. 2
5.4 50.4
5.6 51.6
5.8 52.8
165.00 3.33 50.0
174. 72 3.43 51.2
184.68 3. 54 52.4
194.88 3.65 53.6
205.32 3.75 54.8
175.00 3.39 52.0
185.12 3.50] 53.2
195.48 3.61 54.4
206.08 3.72 55.6
216.92 3.83 56.8
185.00 3.45] 54.0)
195.52 3.56 55.2
206.28 3.67 56.4
217.28 3.78 57.6
228.52 3.89| 58.8|
195.00 3.51
205, 92 3.62
217.08 3.73
228.48 3.85
240.12 3.96
6.0 54.0
6.255.2
6.4 156. 4
6.6 57.6
6.8 58.8
216.00 3.86 56.0
226.92 3.97 57.2
238.08 4.07 58.4
249.48 4.18 59.6
261. 12 4.28] 60.8
228.00 3.93 58.0
239.32 4.04 59.2
250.88 4, 15 60. 4
4.15|
262.68 4.25 61.6
274.72 4.36 62.8
240.00 4.00₤ 60.0
251.72 4.11| 61.2|
263.68 4.22 62.4
275.88 4.33 63.6
288.32 4.44 64.8
252.00 4.07
264.12 4. 18
276.48 4.29
289.08 4.40
301.92 4.51
7.0 60.0
273.00 4.38 62.0|
7.5 63.0 303.75 4.64 65.0
8.0 66.0 336.00 4.90 68.0
8.5 69.0
9.0 72.0
369.75 5. 15 71.0
405.00 5.41 74. 0
287.00 4.47 64.0
318.75 4.73 67.0
352.00 4.99) 70.0
386.75 5. 24 73.0
423.00 5.50 76.0
301.00 4.54| 66.0
333.75 4.81| 69.0|
315.00 4.61
348.75 4.88
368.00 5.07 72.0
384.00 5.15
403.75 5.33| 75.0
441.00 5.59 78.0
420.75 5.41
459.00 5.67
9.5 75.0 441.75 5.66| 77,0
10.0 78.0 480.00 5.91 80.0
460.75 5.75| 79.0
500.00 6.01 82.0
479.75 5.84 81.0
498.75 5.93
520.00 6.10 84.0
540.00 6. 19
10.5 81.0 519.75 6. 16 83.0
582.75 6.45
540.75 6. 26 85.0
561.75 6.35 87.0
85.0
HYDRAULIC TABLES
205
i
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
A
T
A
Τ
A
T
0.2
27. 2
0.4
28. 4
0.6
29.6
0.8
30.8
5.32 0.20 29.2
10.88 .38 30.4
16.68 .56 31.6
22.72 .73 32.8
5.72 0.20 31.2
11.68 .38 32.4
6. 12 0.20 33.2
6.52 0.20
12.48
.38| 34.4|
13. 28
.38
17.88
24.32
.56 33.6
19.08
.56 35.6
20.28
.57
.74 34.8
25.92
.74 36.8
27.52
.74
1.0 32.0
1.2
33.2
1.4
34. 4
29.00 .90 34.0
35.52 1.06| 35.2
42. 28 1.21] 36.4
1.6
35. 6
1.8
36.8
49.28 1.36 37.6
56.52 1.51 38.8
31.00 .90 36.0
37.92 1.07 37.2
45.08 1.22 38.4
52.48 1.38 39,6
60.12 1.531 40.8
33.00
.91 38.0
35.00 .91
40.32 1.07 39.2
47.88 1.23 40.4
55.68 1.39 41.6
63.72 1.54 42. 8
42.72 1.08
50.68 1.24
58.88 1.40
67.32 1.55
2.0 38.0
64.00 1.66 40.0
68.00 1.67 42, 0
72.00 1.69 44.0
76.00 1.70
2.2
39.2
2.4
40. 4
2.6
41.6
2.8
42.8
71.72 1.80 41.2
79.68 1.93 42.4
87.88 2.07| 43.6
96.32 2.20 44.8
76. 12
1.82 43.2
84.48 1.96| 44.4]
93.08 2.09| 45.6
101.92 2. 23 46.8
3.0
44.0
3.2
45. 2
3.4 46.4
3.6 47.6
3.8
48.8
105.00 2.33 46.0
113.92 2.46 47.2
123.08 2.59 48.4
132.48 2.72 49.6
142.12 2.84 50.8
111.00 2.36 48.0
120.32 2.49 49. 2
129.88 2.62 50.4
139.68 2.75 51, 6
149.72 2.88 52.8
117.00 2.39 50.0
126.72 2.52 51.2
136.68 2.65 52. 4
80.52 1.83 45. 2
89.28 1.98 46.4
98.28 2.12 47.6
107.52 2.25 48.8
94.08 1.99
103.48 2.14
113. 12 2. 28
123.00 2.41
133.12 2.55
84.92 1.85
143.48 2.68
146.88 2.78 53.6
157.32 2.91| 54.8
154.08 2.81
164.92 2.94
4.0
4.2 51.2
4.4 52.41
50.0
4.6 53.6
4.8 54.8
5.0 56.0
5.2 57.2
5.4 58.4
5.6 59.6
152.00 2.96 52.0
162.12 3.08 53.2
172.48 3.20 54.4
183.08 3.32 55.6
193.92 3.44 56.8
160.00 3.001 54.0
170.52 3.13| 55. 2
181.28 3.25 56.4
192.28 3.37 57.6
203.52| 3.49| 58.8
168.00 3.04 56.0
178.92 3. 16】 57.2)
176.00 3.07
187.32 3. 20
190.08 3.29 58.4
198.88 3.32
201.48 3.41 59.6
213.12 3.53 60.8
210.68 3.45
222.72 3.57
205.00 3.56 58.0
216.32 3.67 59.2
227.88 3.79 60.4
5.8 60.8
239.68 3.90] 61.6
251.72 4.02 62.8
215.00 3.61 60.0
226. 72 3.72 61. 2
238.68 3.84 62.4
250.88 3.96 63.6
263.32 4.07 64.8
225.00 3.65) 62.0
237.12 3.77 63.2
249.48 3.89 64.4
235.00 3.69
247.52 3.81
260.28 3.93
262.08 4.01 65. 6
274.92 4. 12 66. 8
273.28 4.05
286.52 4.17
6.0
62.0
264.00 4.13] 64, 0
6.2
63.2
276.52 4.24 65, 2
6. 4
64. 4
289. 28 4.35| 66.4
6.6
65.6
6.8 66.8
302.28 4.46 67.6
315.52 4.57 68.8
276.00 4.19 66.0
288.92 4.30] 67.2
302.08 4.41] 68.4
315.48 4.52 69.6
329. 12 4.64 70.8
288.00 4.24 68.0
301.32 4.35 69.2
314.88 4.47 70.4
328.68 4.58 71.6
342.72 4.69. 72.8
300.00 4.29
313.72 4.41
327.68 4.52
341.88 4.64
356.32 4.75
7.0 68.0 329.00 4.68 70.0
7.5 71.0 363.75 4.95 73.0
8.0 74.0 400.00 5.22 76.0
8.5 77.0 437.75 5. 49 79.0
343.00 4.75 72.0
378.75 5.02 75.0
416.00 5.29] 78.0
357.00 4.81 74.0
371.00 4.86
9.0
80.0
477.00 5.75] 82.0|
454.75 5.56 81.0
495.00 5.83 84.0|
393.75 5.08 77.0
432.00 5.36| 80,0
471.75 5.63 83.0
513.00 5.90] 86.0
408.75 5.15
448.00 5.42
488.75 5.70
531.00 5.97
9.5
83.0
517.75 6.01) 85.0
10. 0
86.0
560.00 6.27 88.0
536.75 6.09 87.0
580.00 6.36 90.0
555.75 6.17 89.0
600.00 6.43 92.0
574.75 6.24
620.00 6.51
10. 5
666.75 6.78
89.0
645.75 6.70| 95.0
603.75 6.53 91.0
624.75 6.62 93.0
206
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
Τ
A
T
A
T
A
T
A
0.236.2
0.4
37.4
0.6
38.6
0.8 39.8
7.12 0.20 41.2
14.48 .39 42.4
22.08 57 43.6
29.92 .75 44.8
1.0
41.0
1.2
42.2
1.4 | 43. 4
1.6
44. 6
1.8
45.8
38.00 .92 46.0
46.32 1.09 47.2
54.88 1.25 48.4
63.68 1.41 49.6
72.72 1.57 50.8
43.00 .93 51.0
52.32 1.10) 52.2
61.88 1.27 53.4
71.68 1.43 54.6
81.72 1.59] 55.8
2.0 47.0
2.2 48.2
2.4 49.4
2.6
50.6
2.8
51.8
82.00 1.72 52.0
91.52 1.87 53.2
101.28 2.02| 54.4
111.28 2.16 55.6
121.52 2.31 56.8
8.12 0.20 46.2
16.48 .39| 47.4
25.08.57| 48.6
33.92.75 49.8
92.00 1.75 57.0
102. 52 1.90 58.2
113.28 2.05 59.4
124.28 2. 20 60.6
135.52 2.35 61.8
9.12 0.20 51.2
18.48 .39 52.4
28.08 .58 53.6
37.92 .76 54.8
48.00.94) 56.0
58.32 1.11| 57.2
68.88 1.28|| 58.4
79.68 1.45 59.6|
90.72 1.61 60.8
102.00 1.77 62.0]
113.52 1.93 63. 2
125.28 2.08 64.4
137.28 2.23 65.6
149. 52 2.38 66.8
10.12 0.20
20.48 .39
31.08 .58
41.92 .76
.94
112.00 1.79
124. 52 1.95
137.28 2.11
150.28 2.26
163.52 2.42
53.00
64.32 1.12
75.88 1.29
87.68 1.46
99.72 1.62
3.0
53.0
3.2
54. 2
132.00 2.45 58.0
142.72 2.58 59.2
3.4
55.4
3.6
56.6
3.8
57.8
153.68 2.72 60.4
164.88 2.85 61.6
176.32 2.99 62.8
147.00 2.49 63.0
158.72 2.63 64.2
170.68 2.78 65.4
182.88 2.91 66.6
195. 32 3.05 67.8
4.0
59.0
4. 2 60.2
4.4 61.4
4.6 62.6
4.8 63.8
188.00 3.12 64.0
199.92 3.25 65.2
212.08 3.38 66.4
224.48 3.50 67.6
237.12 3.63 68.8
208.00 3.19 69.0
220.92 3.32 70.2
234.08 3.45 71.4
247.48 3.58 72.6
261. 12 3.71 73.8
5.0
65.0
5.2
66.2
5.4 67.4
5.6 68.6
250.00 3.75 70.0
263.12 3.88 71.2
276.48 4.00 72.4
290.08 4.12 73. 6
5.8 69.8
303.92 4.24 74.8
275.00 3.84 75.0
289.12 3.97 76.2
303.48 4.09 77.4
318.08 4.22 78.6
332.92 4.34| 79.8|
228.00 3.24 74.0
241.92 3.38 75. 2
256.08 3.52 76.4
270.48 3.65 77.6|
285.12 3.78 78.8
300.00 3.92 80.0
315. 12 4.05 81.2
330.48 4.18 82.4
346.08 4.30 83.6
361.92 4.43 84.8]
204.68 2.86
218.88 3.01
233.32 3.15
325.00) 3.98
341. 12 4. 12
357.48 4.25
374.08 4.38
162.00 2.53 68. 0)
174.72 2.68 69.2
187.68 2.82] 70.4
200.88 2.96] 71.6
214.32 3.10 72.8
177.00 2.57
190.72 2.72
248.00 3.29
262.92 3.43
278.08 3.57
293.48 3.71
309.12 3.85
390.92 4.51
6.0 71.0
318.00 4.36 76.0
6.2 72.2
6.8
6. 4
6.6 74.6
75.8
73.4
332. 32 4.48 77.2
346.88 4.60 78.4
361.68 4.71| 79.6
376.72 4.83 80.8
348.00 4.46 81.0
363.32 4.59 82. 2
378.88 4.71| 83. 4
394.68 4.83 84.6
410.72 4.95 85.8
378.00 4.56 86.0
394.32 4.68 87.2
410.88 4.81 88.4
427.68 4.93] 89.6|
444.72 5.05 90.8
408.00 4.64
425.32 4.77
442.88 4.89
460.68 5.02
478.72 5.15
7.0
77.0 392.00 4.95 82.0
7.5 80.0 431.25 5. 23| 85.0
8.0 83.0 472.00 5.51 88.0
8.5 86.0 514.25 5.79 91.0
9.0 89.0 558.00 6.07 94.0
427.00 5.07 87.0
468.75 5.36 90.0
512.00 5. 65 93.0
556.75 5.94 96.0
603.00 6.22 99.0
462.00 5.18 92.0|
506.25 5.48| 95.0
552.00 5.77 98.0
599.25 6.07/101. 0
648.00 6.36104. 0
497.00 5.27
543.75 5.58
592.00 5.88
641.75 6. 19
693.00 6.48
9.5
92.0
603. 25 6.34 97.0
10.0
95.0
650.00 6.62 100.0
650.75 6.50|102. 0
700.00 6.78105. 0
698.25 6.64|107. 0|
750.00 6.93110.0
745.75 6.77
800.00 7.06
10. 5
855.75 7.35
98.0
803. 25 7.21 113. 0
698.25 6.89 103. 0
750.75 7.06 108.0
HYDRAULIC TABLES
207
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
↑ T
A
T T
A
T
A
0.2
61.2
0.4 62.4
0.6 63.6
0.8
64.8
12.12 0.20 71.2
24.48.39| 72.4
37.08 .58 73.6
49.92 .77 74.8
14.12 0.20 81.2
28.48 .39| 82.4|
16.12 0.20| 91.2|
18.12 0.20
32.48 .39 92.4
36.48 .39
43.08
.58 83.6
49.08
.59 93.6
57.92
.77 84.8
65. 92
.77 94.8
1.0
1.2 67.2
66.0
1. 4 68.4
1.6 69.6
1.8 70.8
63.00 .95 76.0
76.32 1.13 77.2
89.88 1.31 78.4
103.68 1.48 79.6
117.72 1.65 80.8
73.00
.96 86.0
88.32 1.14 87.2
103.88 1.32 88.4
119.68 1.49 89.6
135.72 1.67 90.8
83.00 .96 96.0
100. 32 1.15 97.2
117.88 1.33 98.4
135.68 1.51 99. 6
153.72 1.68100. 8
55.08 .59
73.92.78
93.00 .97
112. 32 1.15
131.88 1.33
151.68 1.51
171.72 1.69
2.0 72.0
2.2 73.2
2.4 74.4
2.6 75.6
2.8 76.8
3.0 78.0
132.00 1.82 82.0.
146.52 1.98| 83.2
161.28 2.15 84.4
176.28 2.31 85.6
191.52 2.46] 86.8
152.00 1.84 92.0
168.52 2.01 93.2
185.28 2.18 94.4
202.28 2.34 95.6
219.52 2.50 96.8
172.00
1.86 102. 0
192.00 1.87
190. 52
209.28 2.20 104. 4
228.28 2.37105. 6
247.52 2.53 106.8
2.03103. 2
212.52 2.05
233.28 2.22
254.28 2.39
275.52 2.56
3.2 79.2
3.4 80.4
3.6 81.6
207.00 2.62) 88.0)
222.72 2.78 89.2
238.68 2.93 90.4
3.8
82.8
254.88 3.08 91.6
271.32 3. 23
92.8
237.00 2.66 98.0
254.72 2.82 99.2
272.68 2.98 100.4
290.88 3.14 101.6
309.32 3.29 102.8
267.00 2.70|108. 0
286. 72
306.68 3.02110.4
306.68 3.02 110.4
326.88 3.18 111.6
347.32 3.34 112. 8
297.00 2.73
2.86 109. 2
318.72 2.89
340.68 3.06
362.88 3.22
385.32 3.38
4.0
84.0
4.2 85.2
4.4 86.4
4.6 87.6
4.8 88.8
288.00 3.38 94.0
304.92 3. 52 95.2
322.08 3.67 96.4
339.48 3.81 97.6
357. 12 3.95 98.8
3.89 107.6
405. 12
4.04|108.8
328.00 3.44 104.0
346, 92 3. 59 105. 2
366.08 3.74 106. 4
385.48
368.00 3.49114.0
388.92 3.65 115. 2
410.08 3.80 116. 4
431.48 3.96 117.6
453. 12 4.11118. 8|
408.00 3.54
430.92 3.70
454.08 3.85
477.48 4.01
501. 12 4.16
5.0 90.0
375.00 4.09 100.0
425.00
4.18[110. 0
5.2
5.4 92.4
91. 2
393. 12 4. 23|101. 2
411.48 4.37|102. 4|
445. 12
4.33111.2
475.00 4.26|120. 0
497. 12 4. 40|121. 2|
525.00 4.32
549.12 4.47
465.48
4.47 112. 4
5.6 93.6
430.08] 4.51103. 6]
486.08
4.61113. 6
5.8 94.8
448.92 4. 64 104. 8
506.92
4.75 114. 8
519.48 4.55 122.4
542.08 4.70 123. 6
564.92 4.84 124.8
573.48 4.62
598.08 4.77
622.92| 4.92
6,0 96.0
468.00 4.78 106. 0
528.00
4.89 116.0|
6.2 97.2
487.32 4.91 107. 2
549. 32
5.03 117.2
6.4 98.4
506.88 5.04 108.4
6.6 99.6
6.8 100.8
526.68 5.18 109. 6
546.72 5.31110. 8
570.88 5.17 118. 4
592.68
614.72
588.00 4.99|126.0
611. 32) 5. 13[127. 2
634.88 5.27 128.4
648.00 5.06
673.32 5.21
698.88 5.36
5.30119. 6
5.44 120. 8
658.68 5.41 129. 6
724.68 5.50
682.72 5. 55 130. 8
750.72 5.64
7.0 102.0
7.5 105. 0
8,0 108.0
567.00 5.44112. 0
618.75 5.76115. 0
672.00 6.08118. 0
726.75| 6.39|121. 0
783.00 6.70 124. 0
637.00 5.57|122. 0
693.75 5.91 125. 0
752.00 6. 24 128.0
811.75 6. 56131.0
873.00 6.88 134.0
8.5 111.0
9.0 114.0
9.5 117.0
10.0 120.0
840.75 7.00 127.0 935.75
900.00 7.30 130. 01, 000. 00
7. 19 137. 01, 030. 75
7. 50 140. 01, 100.00
7.03144. 01, 053.00
7. 36 147.01, 125. 75|
7.68 150. 01, 200. 00
7. 50
7.83
707.00 5.69 132, 0
768.75 6.03/135.0
832.00 6.37138.0
896.75 6. 70141. 0
963.00
777.00 5.79
843.75 6. 14
912.00 6.49
981.75 6.83
7. 17
10.5 123.0
8. 16
960.75 7.60 133. 01, 065. 75
8.00 153. 01, 275. 75
7.81 143. 01, 170. 75
208
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T T
A
T
T
A
↑
Τ
A
0.2 101.2 20.12 0.20 111. 2
0.4 102.4 40.48
0.6 103.6 61.08
.39 112.4
.59 113.6
0.8 104.8
81.92
.78114. 8
22.12 0.20 121. 2
44.48.40|122. 4|
67.08 .59 123. 6
89.92.78124.8
24.12 0.20|131. 2|
48.48.40 132. 4
73.08 .59 133. 6
97.92.78134.8
26.12 0.20
52.48
79.08 .59
105.92
.40
.78
1,0 106.0
103.00
.97116.0
1.2 107. 2
124.32
1.16 117. 2
1.4 108. 4
1.6 109.6
1.8 110.8
145.88 1.34 118. 4
167.68 1.52119.6
189.72 1.70 120.8
113.00 .97126.0
136. 32 1.16 127. 2
159.88 1.35 128. 4
183.68 1.53 129. 6
207.72 1.71130. 8
•
123.00
133.00
97136.0
148.32 1.16 137. 2
173.88 1.35 138. 4
199.68 1.53|139.6
225.72 1.72 140.8
.98
160. 32 1.17
187.88 1.35
215.68 1.54
243.72 1.72
2.0 112.0
2.2 113. 2
2.4 114.4
2.6 115.6
212.00 1.88122.0
234.52 2.06 123.2
257.28 2.23124. 4
280.28 2. 41 125. 6
2.8 116.8
303.52 2.58 126.8
232.00 1.89 132. 0
256. 52 2.07133. 2
281.28 2.25|134. 4]
306.28 2.42135. 6
331.52 2.60136.8
252.00 1.90142.0
272.00 1.91
278.52 2.08143. 2
305.28 2. 26144. 4
332.28 2.44 145. 6
359.52 2.61 146. 8
300.52) 2.09
329.28 2.27
358.28 2.45
387.52 2.62
3.0 118.0
327.00 2.75 128.0
3.2 119.2
350.72 2.92129. 2
3.4 120.4 374. 68 3.08 130.4
3.6 121.6
398.88 3.25131.6
3.8 122.8
423.32 3.41 132. 8
357.00 2.77138. 0
382.72 2.94 139. 2
408.68 3.11140. 4
434.88 3. 28 141.6
461.32 3.44 142. 8
387.00 2.78148.0
417.00] 2.80
414. 72
2.96 149. 2
446.72 2.97
442. 68
3. 13150.4
476. 68 3. 15
470. 88
3.30 151. 6
506.88 3.32
499.32 3.47 152. 8
537.32 3.49
4.0 124.0
4.2 125. 2
4.4 126.4
4.6 127.6
4.8 128.8
448.00 3.58 134.0
472.92 3.74|135. 2|
498.08 3.90 136. 4
523.48 4.06 137.6
549. 12 4. 21 138. 8
488.00 3.61144. 0
514.92 3.77 145. 2
542.08 3.93 146. 4
569.48 4.09 147.6
597. 12 4.25 148. 8
528.00 3.63|154.0
556. 92
586.08 3.96 156.4
615.48 4.13157.6
645. 12 4.29|158.8
568.00 3.66
3.80 155. 2
598.92 3.83
630.08 3.99
661.48 4.16
693. 12 4.32
5.0 130.0
5.2 131.2
5.4 132.4
5.6 133.6
5.8 134.8
575.00 4.37|140.0
601.12 4.52 141.2
627.48 4.68 142. 4
654.08 4.83 143. 6
680.92 4.98 144. 8
6.0 136.0
6.2 137.2
6.4 138.4
708.00 5.13 146. 0
735.32 5.28147.2
762.88 5.43 148.4
6.6 139.6 790.68 5. 58149. 6
6.8 140.8 818.72 5. 73 150.8
625.00 4. 41|150.0
653. 12 4. 57151.2
681.48 4.73152.4
710.08 4.88 153.6
738.92 5.04|154. 8|
768.00 5.19156.0
797. 32 5.34 157.2
826.88 5. 50|158.4
856.68 5.65 159. 6
886.72 5.80 160.8
917.00 5.94 162.0
993.75
847.00 5.87 152.0
6. 23155. 0
6.59 158. 01, 072. 00
6. 94161. 01, 151. 75
7. 28 164. 01, 233. 00
7.0 142.0
7.5 145.0 918. 75
8.0 148.0 992.00
8.5 151. 01, 066. 75
9.0 154. 01, 143. 00
9.5 157. 01, 220. 75|
10.0 160. 01, 300. 00
7. 63|167. 01, 315. 75
7.96 170. 01, 400. 00
987.00
6.31165. 01, 068. 75
6. 68|168. 0|1, 152. 00|
7.03 171.01, 236. 75
7. 39 174. 01, 323. 00|
7. 74177.01, 410. 75
8. 08/180. 01, 500. 00
6.07
6. 45
6.82
6. 01 172. 01, 057.00
6. 38 175. 01, 143. 75
6. 75|178. 0|1, 232, 00
7. 12181. 01, 321.75 7. 19
7. 48/184. 01, 413.00 7.56
7. 83187. 01, 505, 75| 7.92
8. 19 190. 01, 600. 00 8. 28
675.00 4.45 160.0
725.00 4.49
705. 12
4. 61 161. 2
757.12 4.65
735. 48
4.77 162. 4|
789.48 4.81
766.08 4.93 163. 6
796.92 5.09 164.8
822.08 4.97
854.92 5. 13
828.00 5.24 166. 0
859.32 5.40 167.2
888.00 5.29
921.32 5.44
890.88 5.55168. 4
922. 68 5.70 169. 6
954.72 5.86170. 81, 022. 72
954.88 5.60
988.68 5.76
5.91
10. 5 163.01, 380. 75
8. 53193. 01, 695. 75 8.63
8. 30 173. 01, 485. 75
8. 42183. 01, 590. 75
HYDRAULIC TABLES
209
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
Bottom width
160 feet
170 feet
Depth
T
A
T Τ
A
T
T
A
T
A
T
0.2 141.2
0.4 142. 4
28. 12 0.20 151. 2
30. 12
0.20|161. 2
32. 12 0.20 171. 2
34.12 0.20
56.48
.40 152. 4
60.48
.40 162. 4
64.48.40 172. 4|
68.48
.40
0.6 143.6
85. 08
59 153. 6
91.08
.59 163. 6
97.08
.59 173. 6
103. 08
.59
0.8 144.8
113.92
.79 154. 8
121.92
.79 164. 8
129.92
79 174. 8
137.92
.79
1,0 146.0
143.00
.98 156.0
153.00
.98 166. 0
163.00
.98 176. 0
173.00
.98
1.2 147.2
172. 32
1. 17 157. 2
184. 32
1. 17 167. 2
196. 32
1. 17 177. 2
208. 32
1. 17
1.4 148. 4
201.88
1.36 158. 4
215.88
1.36 168. 4
229.88
1.36 178. 4
243.88 1.36
1.6 149. 6
1.8 150.8
231.68
261.72
1.54 159. 6
247.68 1.55 169. 6
263. 68
1.55 179. 6
279.68 1. 55
1.73 160. 8
279.72
297.72 1. 74 180. 8
297.72 1.74180.8
315.72 1.74
332.00 1.92|182.0
352.00 1.93
366. 52
2. 11|183.2
388.52 2.11
401.28
2. 29|184. 4
425.28 2.30
436. 28
2.47 185. 6
462.28 2.48
471.52
2.65 186. 8
499.52 2.66
292.00 1.91 162. 0
322.52 2.10|163. 2|
353.28 2.28|164. 4|
384.28 2.46 165. 6
415. 52 2.63 166. 8
2.0 152.0
2.2 153.2
2.4 154.4
2.6155.6
2.8 156.8
3.0 158.0 447.00
3.2 159.2 478. 72
2.81 168. 0
2.99 169. 2
3.4 160.4
3.6 161.6
3.8 162.8
510.68 3.16170. 4|
542.88 3.34|171. 6
575.32 3.51|172. 8|
4,0 164.0
4.2 165. 2
4.4 166.4
4.6 167.6
4.8 168.8
5.0 170.0
5,2 171.2
5.4172.4
5.6173.6
608.00 3.68 174.0
640.92 3.85 175. 2
674.08 4.02|176. 4
707.48 4.18 177.6
741. 12 4.35 178. 8
775.00 4.52 180.0
809. 12 4.68 181. 2
843.48 4.84182. 4
878.08 5.01 183. 6
912.92 5. 17 184.8
5.8 174.8
6.0 176.0 948.00
6.2 177.2 983. 32
6.4 178. 41, 018. 88
6. 6 179. 61, 054. 68
6.8 180. 81, 090.72
7.0182. 01, 127.00
7.5 185. 01, 218. 75
8.0 188. 01, 312.00
8.5 191. 01, 406.75
9.0 194. 01, 503.00|
9.5 197. 01, 600. 75
10.0 200. 01, 700. 00
1.73 170.8
312.00 1.92|172. 0
344. 52 2.10 173.2
377.28 2.28174. 4
410.28 2.46|175. 6|
443. 52 2.64 176, 8
477.00 2.82 178.0
510.72 3.00 179.2
544.68 3. 18/180, 4
578.88 3.35 181. 6
613.32 3.52 182.8
648. 00 3. 70 184. 0
682.92 3.87 185. 2
718.08 4.04186. 4
753.48 4. 21 187. 6
789. 12 4.38 188.8
507.00 2.83 188. 0
542. 72 3. 01|189. 2
578.68 3. 19/190. 4
614.88 3.36191. 6
651. 32 3. 54192.8
688.00 3.71 194. 0
724.92 3.89|195. 2|
762.08 4.06 196. 4
799.484. 23|197, 6|
837. 12 4. 40/198.8
537.00 2.84
574. 72 3.02
612.68 3.20
650.88 3.38
689.32 3.55
728.00 3.73
766.92 3.90
806.08 4.07
845.48 4.25
885. 12 4.42
925.00 4.59
965. 12 4.76
825.00 4. 54₤190.0 875.00 4.57|200.0
861. 12 4.71 191.2 913. 12 4.73 201. 2
897.48 4.87 192. 4 951.48 4.90 202. 41, 005. 48 4.93
934. 08 5.04 193.6 990.08 5. 07203. 61, 046. 08
970.92 5. 20 194. 81, 028. 92 5. 23204. 81, 086.92
5.33 186. 01, 008. 00
5.49 187. 21, 045. 32
5.65 188. 41, 082. 88
5.80 189. 61, 120. 68
5.96₤190. 81, 158. 72
6. 12 192. 01, 197.00
6. 50 195. 01, 293. 75
6.88 198. 01, 392. 00
7. 26 201. 01, 491. 75
7. 63|204. 01, 593. 00
8.00 207. 01, 695. 75
8. 36 210. 01, 800. 00
5. 36 196. 01, 068.00
5. 52197. 21, 107. 32
5.69 198. 41, 146. 88
5.84 199. 61, 186. 68
6.00 200. 81, 226. 72
5. 40 206. 01, 128. 00
5. 56 207. 21, 169. 32
5. 72 208. 41, 210. 88
5.88 209. 61, 252. 68
6.04 210. 81, 294. 72
5.09
5. 26
5.42
5.59
5.75
5.92
6.08
6. 16202. 01, 267.00 6. 20 212.01, 337.00 6.24
6. 55 205. 01, 368. 75 6. 60 215. 01, 443. 75 6. 64
6.94 208. 01, 472.00 6.99 218. 01, 552.00 7.04
7. 32211. 01, 576. 757. 38221.01, 661.75 7.43
7. 70 214. 01, 683. 00 7. 76 224. 01, 773. 00 7.81
8.07 217. 01, 790. 75
8. 44 220. 01, 900. 00
8. 14 227.01, 885. 75 8. 20
8. 51 230. 02, 000.00 8.57
10. 5 203. 01, 800.75
8. 88 233. 02, 115. 75 8.95
8. 72 213.01, 905. 75
8. 81223. 02, 010. 75
210
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
Τ
A
T
T
A
g
T
A
T
0.2
181.2
36. 12
0.20
191. 2
38. 12
0.20
201.2
40. 12
0.20
0.4
182.4
72.48
.40
192.4
76.48
.40 202.4
80.48
.40
0.6
183. 6
109.08
.59
193. 6
115.08
.59 203.6
121.08
.59
0.8
184.8
145.92
.79
194.8
153.92
.79 204.8
161.92
.79
1,0
186.0
183.00
.98
196.0
193.00
.98
206.0
203.00
.98
1.2
187.2
220.32
1. 17
197. 2
232.32
1.18
207.2
244. 32
1. 18
1.4 188.4
257.88
1,37
198.4
271.88 1.37
208.4
285.88
1.37
1.6
189.6
295.68
1.56
199.6
311.68
1.56 209.6
327.68
1.56
1.8
190.8
333. 72
1. 74
200.8
351.72
1.75 210.8
369.72
1.75
2.0
192.0
372.00
1.93
202.0
392.00
1.93
212.0
412.00
1.94
2.2
193. 2
410. 52
2.12
203. 2
432.52
2.12
213.2
454.52
2. 12
2.4
194. 4
449.28
2.30
204.4
473. 28
2. 31
214. 4
497.28
2.31
2.6
195.6
488.28 2.49
205.6
514. 28
2.49
215.6
540.28
2.50
2.8
196.8
527.52 2.67
206.8
555.52
2.67
216.8
583.52
2.68
3.0
198.0
567.00
2.85
208.0
597.00
2.86
218.0
627.00
2.86
3.2
199.2
606. 72
3.03
209. 2
638.72
3.04
219. 2
670. 72
3.05
3.4
200.4
646. 68
3. 21
210. 4
680.68 3.22
220.4
714.68
3.23
3.6
201.6
686. 88
3.39
211. 6
722.88
3.40 221.6
758.88
3. 41
3.8
202.8
727.32
3. 56
212.8
765.32 3.58
222.8
803.32
3.59
4.0
204.0
768.00
3.74
214.0
808.00
3.75
224.0
848.00
3.76
4.2
205. 2
808.92
3.92
215, 2
850.92
3.93
225.2
892.92
3.94
4.4
206.4
850.08
4.09
216. 4
894.08
4. 10
226. 4
938.08
4. 12
4.6
207.6
891.48
4. 26
217.6
937.48
4. 28
227.6
983.48
4. 29
4.8
208.8
933. 12
4.44
218.8
981. 12
4. 45
228.8 1,029. 12
4. 47
5.0
210,0
975.00
4. 61
220.0
1,025.00
4.62
230.0 1,075.00
4. 64
5.2
211. 2 1,017. 12
4.78
221. 2
1,069. 12
4.80
231.2 1, 121. 12
4.81
5.4
212.4 1,059. 48
4.95
222. 4
1, 113, 48
4.97
232. 4 1, 167. 48
4.99
5.6
213.6 1, 102. 08
5.12
223. 6
1, 158. 08
5.14
233.6 1, 214. 08
5. 16
5.8
214.8 1. 144. 92
5.28
224.8 1, 202.92
5.31
234.8 1, 260. 92
5. 33
6.0
216.01, 188.00
5.45
226. 0 1, 248. 00
5.47
236.0 1, 308. 00
5.50
6.2
217.2 1, 231. 32
5.62
227. 21, 293. 32
5.64
237.2 1, 355. 32
5. 67
6.4
218. 4 1, 274.88
5.78
228. 4 1, 338. 88
5.81
238.4 1,402. 88
5.83
6.6
219.6 1,318. 68
5.95
229.6 1,384, 68
5.98
239.6 1,450. 68
6.00
6.8
220.8 1, 362.72
6. 11
230. 81, 430. 72
6. 14
240.8 1,498, 72
6. 17
7.0
222.0 1,407,00
6.27
232.0❘ 1, 477.00
6.30
242.0 1,547. 00
6.33
7.5
225. 0 1, 518. 75
6.68
235.01, 593.75
6.71
245.0 1,668.75
6.74
8.0
228.0] 1, 632. 00
7.08
238.0 1,712.00
7.12
248.0 1, 792. 00
7. 15
8.5
231.0 1,746. 75
7.47
241.0 1,831. 75
7.51
251. 0 1,916. 75
7.55
9.0 234.0 1,863, 00
7.86
244.0 1,953. 00
7.91
254.0 2,043. 00
7.95
9.5 237.0 1,980.75
8.25
247.0 2,075. 75
8.30
257.0 2, 170. 75
8.35
10.0 240.0 2, 100.00
8.63
250.0 2,200.00
8.69
260.0 2,300.00|
8.74
10.5 243.0 2,220. 75
9.12
9.01
263.0 2, 430. 75
253.0 2, 325. 75|
9.07
HYDRAULIC TABLES
211
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
A
T T
A
T T
A
T
11
68.0
12
74.0
13
80.0
14 86.0
385.00 5.38 69.0
456.00 5.85) 75.0|
533.00 6.33 81.0
616.00 6.80 87.0
396.00 5.46 70.0
468.00 5.93 76.01
546.00 6.41 82.0
630.00 6.88 88.0
407.00 5.53] 71.0|
480.00 6.01 77.0
559.00 6.48 83.0
644.00 6.96 89.0
418.00 5.61
492.00 6.08
572.00 6.56
658.00 7.03
705.00 7.28 93.0
800.00 7.75 99.0
750.00 7.51
848.00 7.99
15 92.0
16 98.0
17 104.0 901.00
18 110. 01, 008. 00
19 116.01, 121.00
720.00 7.36 94.0 735.00 7.43 95.0
816.00 7.83100.0 832.00 7.91 101.0
918.00 8.31 106.0 935.00 8.38 107. 0 952.00 8.46
8.78 112. 01, 044. 00 8.86 113.01, 062. 00 8.94
9.26 118.01, 159.00 9.33 119. 01, 178.00 9.41
8.23|105. 0|
8. 70 111. 01, 026. 00
9. 18 117. 01, 140. 00
9.73 124. 01, 280.00
20 122. 01, 240.00 9.65 123. 01, 260.00
9. 81 125. 01, 300.00 9.89
21 128.01, 365.00 10. 12 129. 01, 386. 00 10. 21130. 01, 407. 00 10. 28 131. 01, 428.00 10. 36
22 134. 01, 496. 00 10. 60 135. 01, 518. 00 10. 68 136. 01, 540. 00 10. 76 137. 01, 562.00 10.84
23 140.01, 633. 00 11. 07 141. 01, 656. 00 11. 15 142. 01, 679. 00 11. 23 143. 01, 702. 00 11. 31
24 146. 01, 776. 00 11. 55 147. 01, 800.00 11. 63 148. 0/1, 824. 00 11. 71 149. 01, 848. 00 11. 79
25 152. 01, 925. 00 12. 02|153. 01, 950. 00 12. 10154. 01, 975. 00 12. 18 155. 02, 000. 00/12. 26
26 158. 02, 080. 00 12. 50 159. 02, 106. 00 12. 58 160. 02, 132. 00 12. 66 161. 02, 158.00 12. 74
27 164.02, 241.00 12. 97 165. 02, 268.00 13. 05 166. 02, 295.00 13. 13 167. 02, 322.00 13. 21
28 170.012, 408. 00 13. 45 171. 02, 436.00 13. 53 172. 02, 464. 00 13. 61 173. 02, 492. 00 13. 69
29 176. 02, 581.00 13. 92 177. 02, 610. 00 14. 00178. 02, 639. 00|14. 08|179. 02, 668. 00 14. 16
30 182.02, 760.00 14. 39 183. 02, 790. 00 14. 48 184. 02, 820.00 14. 56 185. 02, 850.00 14. 64
31 188. 02, 945. 00 14. 87 189. 02, 976. 00 14. 95 190. 03, 007. 00 15. 03 191. 03, 038. 00 15. 11
32 194.03, 136. 00 15. 34 195. 03, 168.00 15. 42 196. 03, 200.00 15. 50 197. 03, 232.00 15. 58
33 200.03, 333.00 15. 82 201. 03, 366. 00 15. 90 202. 03, 399. 00 15. 98 203. 03, 432.00 16. 06
34 206. 03, 536.00 16. 29 207. 03, 570.00 16. 37 208. 03, 604. 00 16. 45 209. 03, 638.00 16. 53
35 212. 03, 745.00 16. 77 213. 0|3, 780.00 16. 85 214. 03, 815.00 16. 93 215. 03, 850.00 17.01
36 218. 03, 960. 00 17. 24|219. 03, 996. 0017. 32 220. 04, 032. 00₤17. 40 221, 04, 068. 00 17. 48
37 224. 04, 181.00 17. 72 225. 04, 218. 00 17. 80 226. 0 4, 255.00 17.88 227. 04, 292. 00 17.96
38 230.04, 408. 00 18. 19 231.04, 446. 00 18. 27 232. 0 4, 484. 00 18. 35 233.04, 522. 00|18. 43
39 236.04, 641.00 18. 66 237.04, 680.00 18. 75 238. 04, 719.00 18. 83 239.04, 758. 0018. 91
40 242.04, 880.00 19. 14 243. 0 4, 920. 00 19. 22 244. 04, 960. 00 19. 30 245. 05, 000.00 19. 38
41 248. 05, 125.00 19. 61 249.05, 166. 00 19. 69 250. 05, 207.00 19. 78 251.05, 248. 00 19. 86
42 254.05, 376.00 20.09 255. 05, 418.00 20. 17 256. 05, 460.00 20. 25 257.05, 502.00 20.33
43 260.05, 633.00 20. 56 261. 05, 676.00 20. 64 262. 05, 719.00 20. 72 263. 05, 762.00 20. 80
44 266.05, 896.00 21.04 267.05, 940. 00 21. 12 268. 05, 984.00 21. 20 269. 06, 028.00 21.28
45 272.06, 165.00 21. 51 273. 06, 210.00 21. 59 274. 06, 255.00 21. 67 275. 06, 300.00 21. 75
46 278.0 6, 440.00 21.98 279. 06, 486.00 22. 07230. 06, 532.00 22. 15 281. 06, 578. 00|22. 23
47 284.0 6, 721. 00 22. 46 285. 0 6, 768. 00 22. 54 286. 06, 815.00 22.62 287. 06, 862. 00 22. 70
48 290.0 7,008.00 22. 93 291.07, 056.00 23. 02 292. 07, 104. 00 23. 10 293. 07, 152.00 23. 18
49 296. 07, 301.00 23. 41 297. 07, 350.00 23. 49 298. 07, 399.00 23. 57 299. 07, 448. 00 23. 65
88 303. 07, 650.00 23. 96 304. 07, 700.00 24. 05305. 50 302.07, 600.00 23. 35805
88303.
07, 750.00 24. 13
212
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
A
↑ T
A
T T
A
T
1231
78.0
84.0
14 90.0
72.0 429.00 5.68 73.0
504.00 6.15 79.0
585.00 6.63 85.0
672.00 7.11 91.0
440.00 5.75 74.0
516.00 6. 22 80.0
598.00 6.70 86.0
686.00 7.18] 92,0
451.00 5.81| 75.0
528.00 6.29 81.0
611.00 6.77] 87.0
700.00 7.25 93.0
462.00 5.88
540.00 6.36
624.00 6.84
714.00 7.32
15
96.0
16
765.00 7.58 97.0 780.00 7.66 98.0
102. 0 864.00 8.06 103. 0 880.00 8. 13 104. 0
17 108.0 969.00 8.54 109.0 986.00
18 114. 01, 080. 00 9. 01 115. 01, 098. 00
19 120. 01, 197.00 9. 49 121. 01, 216. 00
795.00| 7.73| 99. 0
896.00 8.21 105. 0
8. 61 110. 01, 003. 00|
9. 09 116. 01, 116. 00
9. 56 122. 01, 235.00
810.00 7.80
912.00 8. 28
8. 68 111. 01, 020.00 8.75
9. 16 117. 01, 134. 00 9.23
9. 64/123. 01, 254.00 9.71
20 126. 01, 320.00 9.96 127. 01, 340. 00 10. 04 128. 01, 360.00 10. 11129. 01, 380.00 10, 19
21 132. 01, 449. 00 10. 44 133. 01, 470. 00 10. 51 134. 01, 491. 00 10. 59 135. 01, 512.00 10. 66
22 138. 01, 584. 00 10. 91 139. 01, 606. 00 10. 99 140. 01, 628. 00 11. 06 141. 01, 650.00 11. 14
23144. 01, 725. 00|11. 39|145. 01, 748. 00|11. 46 146. 01, 771. 00|11. 54 147. 0|1, 794. 00|11. 61
24 150.01, 872. 00 11. 86 151. 01, 896. 00 11. 94152. 01, 920. 00 12. 02 153. 01, 944. 00 12. 09
25 156. 02, 025. 00 12. 34 157. 02, 050.00 12. 42158. 02, 075. 00 12. 49 159. 02, 100. 00 12. 57
26 162. 02, 184. 00 12. 81 163. 02, 210. 00 12. 89 164. 02, 236. 00 12. 97 165. 02, 262. 00 13. 04
27 168. 02, 349.00 13. 29 169. 02, 376. 00 13. 37 170. 02, 403. 00 13. 44 171. 02, 430, 00 13. 52
28 174. 02, 520.00 13. 76|175. 02, 548. 0013. 84 176. 02, 576. 00 13. 92|177. 02, 604. 00 13. 99
29 180. 02, 697. 00 14. 24 181. 02, 726. 0) 14. 32|182. 0|2, 755. 00|14. 39|183. 0|2, 784. 00|14. 47
30 186. 02, 880. 00 14. 71 187. 02, 910. 00 14. 79 188. 02, 940. 00 14. 87 189. 02, 970. 00 14.94
31 192. 03, 069. 00 15. 19 193. 03, 100. 00 15. 27 194. 03, 131. 0015. 34|195. 03, 162.00 15. 42
32 198. 03, 264. 00 15. 66 199. 03, 296. 00 15. 74200. 03, 328.00) 15. 82201. 03, 360.00 15.90
33 204. 03, 465. 00 16. 14 205. 03, 498. 00 16. 22206. 03, 531. 00 16. 29 207. 03, 564.00 16. 37
34 210. 03, 672.00 16. 61 211. 03, 706. 00 16. 69 212. 03, 740. 00 16. 77 213. 03, 774. 00 16. 85
35 216.03, 885. 00 17. 09 217. 03, 920. 00|17. 17218. 03, 955. 00|17. 24|219. 03, 990. 00|17. 32
36 222. 04, 104. 00 17. 56 223. 04, 140. 00|17. 64 224. 04, 176. 00 17. 72 225. 04, 212. 00 17. 80
37 228. 04, 329. 00/18. 04/229. 04, 366. 0018. 12|230. 04, 403. 00 18. 19|231. 04, 440. 00₤18. 27
38 234. 04, 560. 00 18. 51 235. 04, 598. 0018. 59 236. 0 4, 636. 00 18. 67 237. 04, 674. 00 18. 75
39 240. 04, 797. 00 18. 99 241. 04, 836. 00 19. 07242. 04, 875.00 19. 14 243. 0₤4, 914. 00 19. 22
40 246. 05, 040. 00 19. 46 247. 05, 080. 00 19. 54 248. 05, 120. 00 19. 62 249. 05, 160. 00 19. 70
41 252. 05, 289. 00 19. 94 253. 05,330. 00 20. 01254. 05, 371.00 20. 09/255. 05, 412.00 20. 17
42 258. 05, 544. 00 20. 41 259. 05, 586. 00 20. 49 260. 05, 628. 00 20. 57 261. 05, 670. 00 20. 65
43 264. 05, 805.00 20. 88 265. 05, 848. 00 20. 96 266. 0|5, 891. 00 21. 04 267. 05, 934. 00 21. 12
44 270.06, 072. 00 21. 36 271. 06, 116. 00 21. 44 272. 06, 160. 00|21. 52|273. 06, 204. 00₤21. 60
45 276. 06, 345. 00|21. 83|277. 06, 390. 00 21. 91278. 06, 435. 00|21. 99|279. 0|6, 480. 00|22. 07
46 282. 06, 624. 00|22. 31|283. 06, 670. 00 22. 39 284. 06, 716. 00 22. 47|285. 06, 762. 00 22. 55
47 288. 06, 909. 00|22. 78₤289. 06, 956. 00|22. 86290. 07, 003. 00|22. 94/291. 07, 050. 00 23. 02
48 294. 07, 200.00 23. 26/295. 07, 248. 00 23. 34 296. 07, 296. 00 23. 42 297. 07, 344. 00 23. 49
49 300. 07, 497. 00|23. 73|301. 07, 546. 00|23. 81|302. 0|7, 595. 00|23. 89|303. 07, 644. 00 23. 97
?
50 306. 07, 800.00 24. 21 307. 07, 850.00 00/24
24. 29 308. 07, 900.00 24. 37309. 07, 950.00 24. 44
HYDRAULIC TABLES
213
in
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
Τ
Α
T T
A
T
A
11
12 82.0
76.0 473.00 5.94 78.0]
552.00 6.43 84.0
13
88.0
14
94.0
637.00 6.91| 90.0|
728.00 7.39 96. 0
495.00 6.07 80.0
576.00 6.55 86.0
663.00 7.04 92.0
756.00 7.52 98.0
539.00 6.30
624.00 6.79
715.00 7.28
812.00 7.77
855.00 8.00|104.0|
825.00 7.87 102. 0
8.35 108.0 960.00
8.82114. 01, 071.00
9.30 120.01, 188.00
9.78126. 01, 311.00
15 100.0
16 106.0 928.00
17 112. 01, 037.00
18 118.01, 152.00
19 124.01, 273.00
517.00 6.19 82.0
600.00 6.67 88.0|
689.00 7.16 94.0
784,00| 7.65|100.0
885.00 8.13 106.0
915.00 8.25
8.48 110.0 992.00 8.61|112.0|1, 024.00| 8.74
8. 96|116. 0|1, 105.00 9.09 118.01, 139.00 9.22
9.44 122.01, 224.00 9.57 124. 01, 260.00 9.70
9.92 128.01, 349. 00|10. 05|130. 01, 387.00 10. 19
20 130. 01, 400.00 10. 26 132. 01, 440.00 10. 40 134. 01, 480.00 10. 53 136. 01, 520.00 10. 67
21 136.01, 533.00 10. 73 138. 01, 575.00 10. 88 140.01, 617.00 11. 01142. 01, 659. 00 11. 15
22 142. 01, 672. 00 11. 21 144. 01, 716. 00 11. 35 146. 01, 760. 00 11. 49 148. 01, 804. 00 11.63
23 148. 01, 817.00 11. 69 150. 01, 863. 00|11. 83 152. 01, 909.00 11. 97 154. 01, 955. 00 12. 11
24 154. 01, 968.00 12. 16 156. 02, 016. 00|12. 31|158. 02, 064.00 12. 45 160.02, 112.00 12. 59
25 160.0 2,125.00 12.64 162. 02, 175.00 12. 79 164. 02, 225.00 12. 93 166. 02, 275.00 13. 07
26 166. 02, 288. 00 13. 12168. 02, 340.00 13. 26 170. 02, 392. 00 13. 41 172. 02, 444. 00 13. 54
27 172. 02, 457.00 13. 59 174. 02, 511.00 13. 74 176. 02, 565.00 13. 88 178. 02, 619.00 14.02
28 178. 02, 632. 00 14.07 180. 02, 688.00 14. 22 182. 02, 744. 00 14. 36 184. 02, 800. 00 14. 50
29 184.02, 813. 00 14. 54 186. 02, 871.00 14. 69 188. 02, 929. 00 14. 84/190.02, 987.00 14.98
30 190.03,000.00 15.02 192. 03, 060.00 15. 17 194. 03, 120.00 15. 31 196. 03, 180. 00 15. 46
31 196.03, 193. 00 15. 50 198. 03, 255.00 15. 64|200. 03, 317.00 15. 79|202. 0|3, 379. 00|15. 93
32 202. 03, 392, 00 15. 97 204. 03, 456. 00 16. 12 206. 03, 520.00 16. 27 208. 03, 584. 00 16. 41
33 208.03, 597.00 16. 45210.03, 663.00 16. 60 212. 03, 729.00 16. 74214. 03, 795.00 16. 89
34 214.03, 808.00 16. 92 216. 03, 876.00 17.07 218. 03, 944.00 17. 22 220. 04, 012.00 17. 37
35 220.04, 025. 00 17. 40|222. 04, 095.00 17.55 224. 04, 165.00 17. 70 226. 04, 235.00 17.84
36 226.04, 248. 00|17.87|228. 0|4, 320. 00|18. 02 230. 04, 392. 00|18. 17|232. 04, 464. 00|18. 32
37 232.04, 477.00 18. 35|234. 04, 551.00 18. 50 236. 0 4, 625. 00|18. 65|238. 04, 699. 0018. 80
38 238.04, 712. 00|18. 82 240. 04, 788. 00|18. 97|242. 0|4, 864. 00 19. 12 244. 04, 940. 00 19. 27
39 244.04, 953. 00|19. 30|246. 0|5, 031. 00|19. 45 248. 05, 109.00 19. 60₤250. 05, 187.00 19. 75
40 250.05, 200.00 19. 77 252. 05, 280.00 19. 93 254. 05, 360.00 20. 08 256. 05, 440.00 20.22
41 256.05, 453. 00|20. 25|258. 0|5, 535. 00|20. 40 260. 0|5, 617.00 20. 55 262. 05, 699.00 20.70
42 262.05, 712. 00[20. 72|264. 05, 796. 00|20. 88₤266. 0|5, 880.00 21. 03|268. 05, 964. 00 21. 18
43 268.05, 977. 00 21. 20 270. 06, 063. 00|21. 35|272. 0|6, 149. 00|21. 50₤274. 06, 235. 00 21. 65
44 274.06, 248.00 21. 67 276. 0|6, 336. 00₤21. 83 278. 06, 424. 00 21. 98 280. 06, 512.00 22. 13
45 280.0 6, 525.00 22. 15 282.0 6, 615.00 22. 30 284. 06, 705. 00 22. 45 286. 06, 795.00 22.60
46 286.06, 808. 00 22. 62 288. 06, 900.00 22. 78 290. 06, 992. 00 22. 93 292. 07, 084. 00 23.08
47 292. 07, 097. 00 23. 10 294. 07, 191. 00 23. 25 296. 07, 285.00 23. 41 298. 07, 379.00 23. 56
48 298.07, 392. 00|23. 57|300. 07, 488. 00|23. 73|302. 0|7, 584.00 23. 88 304. 07, 680.00 24. 03
49 304.07, 693. 00 24. 05|306. 07, 791.00 24. 20308. 0|7, 889. 00|24. 36|310. 07, 987.00 24.51
50 310.08,000.00 24.52312.08, 100.00 24.68314. 08, 200.00 24.83316.0S, 300.00 24. 98
214
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1—Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
Τ
A
T Τ
A
g T
A
T T
A
T
11
84.0
12
90.0
561.00 6.41 86.0
648.00 6.90 92.0
741.00| 7.39 98.0
840.00 7.88 104.0
583.00 6.51 88.0
672.00 7.01| 94.0
767.00 7.50 100.0
868.00 8.00 106.0
627.00 6.70
945.00 8.37 110.0
975.00
13 96.0
14 102.0
15 108.0
16 114.0 1,056.00 8.86 116.01, 088.00
17 120.01, 173.00 9.35 122.01, 207.00
18 126.01, 296.00 9.83 128.01, 332.00
19 132. 01, 425.00 10. 31 134. 01, 463. 00
605.00 6. 61 90. 0
696.00 7.11 96.0
793.00 7.61|102. 0
896.00| 8.11|108. 0
720.00 7.21
819.00 7.71
924.00 8.21
8.49 112. 01, 005. 00 8. 60 114. 01, 035.00 8.71
8. 98 118. 01, 120.00 9.09 120. 01, 152, 00 9.20
9.47 124. 01, 241.00 9.58126. 01, 275.00 9.69
9.95 130. 01, 368.00 10. 07132. 01, 404. 00 10. 19
10. 44 136. 01, 501.00 10. 56 138. 01, 539.00 10. 68
20 138.01, 560.00 10. 80 140.01, 600.00 10. 92 142. 01, 640. 0011. 04144. 01, 680.00 11. 16
21 144. 01, 701.00 11. 28 146. 01, 743. 00 11. 41 148. 01, 785.00 11. 53 150. 01, 827. 00 11. 65
22 150.01, 848.00 11. 76 152. 01, 892. 00 11. 89 154. 01, 936. 00 12. 01 156. 01, 980.00 12. 14
23 156.0 2,001.00 12. 24 158. 02, 047.00 12. 37 160. 02, 093. 00|12. 50 162. 02, 139. 00 12. 62
24 162.02, 160.00 12. 72 164. 02, 208. 00 12. 85 166. 02, 256.00 12. 98 168. 02, 304. 00 13. 11
25 168.0 2, 325.00 13. 20170.02, 375.00 13. 33|172. 02, 425. 00 13. 46 174. 02, 475. 00|13. 59
26 174. 02, 496.00 13. 68 176. 02, 548.00 13. 81 178. 02, 600.00 13. 95 180. 02, 652. 00 14.07
27 180.02, 673.00 14. 16 182.02, 727.00 14. 30 184. 02, 781. 00 14. 43 186. 02, 835. 00 14. 56
28 186. 02, 856. 00 14. 64 188. 02, 912. 00 14. 78 190. 02, 968. 00 14. 91 192. 03, 024. 0015. 04
29 192. 03, 045.00 15. 12194.03, 103. 00 15. 25 196. 03, 161.00 15. 39 198. 03, 219.00 15. 52
30 198.03, 240.00 15. 60 200.0|3, 300.00 15. 73|202. 03, 360. 00|15. 87|204. 03, 420.00 16. 00
31 204. 03, 441.00 16.07 206.03, 503.00 16. 21 208. 03, 565.00 16. 35|210. 03, 627.00 16. 48
32 210.03, 648.00 16. 55 212.03, 712.00 16. 69 214. 03, 776. 00 16. 83 216. 03, 840. 00 16. 96
33 216.03, 861.00 17.03 218.03, 927.00 17. 17|220. 03, 993. 00 17. 31 222. 04, 059. 00|17. 44
34 222.04,080.00 17. 51 224. 04, 148. 00 17. 65 226. 0|4, 216.00 17. 79 228.04, 284. 00 17. 92
35 228.04, 305.00 17.99 230. 04, 375.00 18. 13232. 04, 445. 00 18. 27234. 04, 515. 00 18. 40
36 234.04, 536.00 18. 46 236.04, 608. 00 18. 60 238. 0 4, 680. 00|18. 74|240. 04, 752.00 18. 88
37 240.04, 773.00 18. 94 242. 04, 847.00 19. 08244. 0 4, 921. 00|19. 22₤246. 04, 995.00 19. 36
38 246.0 5,016. 00 19. 42 248. 05, 092. 00 19. 56 250. 05, 168.00 19. 70 252. 05, 244. 00 19. 84
39 252.05, 265.00 19. 89 254. 05, 343.00 20.04 256. 05, 421.00 20. 18 258. 05, 499. 00 20. 32
40 258.05, 520.00 20.37 260.0|5, 600.00 20. 51 262. 05, 680.00 20. 66|264. 05, 760.00 20. 80
41 264.05, 781.00 20. 85 266. 05, 863.00 20. 99 268. 05, 945. 00 21. 13 270. 06, 027. 00 21. 27
42 270. 06, 048.00 21. 32 272. 06, 132. 00|21. 47 274. 06, 216.00 21. 61 276. 06, 300.00 21. 75
43 276.06, 321.00 21. 80 278. 06, 407. 00 21. 95 280. 0|6, 493. 0022. 09/282. 0|6, 579. 00|22. 23
44 282.06, 600.00 22. 28 284. 06, 688. 00 22. 42 286. 06, 776. 00|22. 57|288. 0|6, 864.00 22. 71
45 288.06, 885.00 22. 75 290.06, 975. 0022. 90|292. 07, 065. 00 23.04 294. 07, 155. 00₤23. 18
46 294.07, 176.00 23. 23 296.0|7, 268. 0023. 38|298. 0|7, 360.00 23. 52300. 07, 452. 00|23. 66
47 300.07, 473.00 23. 70 302. 07, 567. 00 23. 85 304. 07, 661.00 24.00 306. 07, 755. 0024. 14
48 306. 07, 776. 00 24. 18308. 07, 872. 00 24. 33310. 07, 968. 00 24. 47312. 08, 064. 00 24. 62
49 312.08, 085.00 24. 66 314. 08, 183. 00 24. 80 316. 08, 281.00 24. 95318. 08, 379. 00 25.09
50 318.08, 400.00 25. 13 320. 08, 500.00 25. 28322. 08, 600.00 25. 43 324. 08, 700.00 25.57
13/320.08, 28322.08,
HYDRAULIC TABLES
215
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
Α
T T
A
Τ
A
T T
A
11 92.0
12
13
98.0
104. 0
649.00 6.79 94.0
744.00 7.30 100.0
845.00 7.81 106. 0
952.00 8.31 112. 0
671.00 6.88 96.0
768.00 7.39 102. 0
871.00 7.90108. 0
693.00 6.96 98.0
715.00 7.04
792.00 7.48|104.0
816.00| 7.56
14 110.0
897.00 7.99110.0 923.00 8.08
980.00 8.41 114. 01, 008.00 8.50 116. 01, 036. 00 8.59
15 116. 01, 065. 00 8. 81118. 01, 095. 00
16 122. 01, 184. 00 9. 31124. 01, 216. 00
17 128. 01, 309. 00 9.80 130. 01, 343. 00
18 134. 01, 440. 00 10. 30 136. 01, 476. 00
19 140. 01, 577. 00 10. 79 142. 01, 615. 00
8. 91 120. 01, 125. 00 9. 01 122. 01, 155. 00 9. 10
9.41 126. 01, 248. 00 9.51 128. 01, 280.00 9.61
9. 91 132. 01, 377. 00 10. 01 134. 01, 411. 00 10. 11
10. 41 138. 01, 512. 0010. 51140. 01, 548. 00 10. 61
10. 90 144. 01, 653. 00 11. 01₤146. 01, 691. 00 11. 11
20 146. 01, 720. 00 11. 28 148. 0|1, 760. 00|11. 39|150. 01, 800. 00|11. 50|152. 01, 840. 00|11. 61
21 152. 01, 869. 00 11. 77 154. 01, 911. 00 11. 88 156. 01, 953. 00 12. 00 158. 01, 995. 00 12. 10
22 158. 02, 024. 00 12. 26 160. 02, 068. 00 12. 37 162. 02, 112. 00 12. 49 164. 02, 156. 00 12. 60
23 164. 02, 185. 00 12. 74 166. 02, 231. 00 12. 86 168. 02, 277. 00 12. 98 170. 02, 323. 00 13. 09
24 170. 02, 352. 00|13. 23|172. 02, 400. 00|13. 35|174. 0|2, 448. 00 13. 47 176. 02, 496. 00 13. 58
25 176. 02, 525. 00 13. 71178. 02, 575. 00 13. 84 180. 02, 625. 00 13. 95 182. 02, 675. 00 14. 07
26 182. 02, 704. 00 14. 20 184. 02, 756. 00 14. 32|186. 02, 808. 00 14. 44 188. 02, 860. 00 14. 56
27188. 02, 889. 00 14. 68 190. 02, 943. 00|14. 81|192. 0|2, 997. 00 14. 93|194. 03, 051. 00₤15. 05
28 194. 03, 080. 00 15. 17 196. 03, 136. 00 15. 29 198. 03, 192. 00 15. 41 200. 03, 248. 00 15. 53
29 200. 03, 277.00 15. 65 202. 03, 335. 00 15. 77 204. 03, 393. 00 15. 90 206. 03, 451. 00 16. 02
30 206. 03, 480.00 16. 13 208. 03, 540. 00 16. 26 210. 03, 600.00 16. 38 212. 03, 660. 00 16, 51
31 212. 03, 689. 00 16. 61 214. 03, 751. 00|16. 74|216. 0|3, 813. 00 16. 87 218. 03, 875. 00 16. 99
32 218. 03, 904. 00 17.09 220. 03, 968. 0017. 22|222. 04, 032. 00 17. 35 224. 04, 096. 00 17. 48
33 224. 04, 125. 00 17. 57 226. 04, 191. 00 17. 71 228. 04, 257. 00 17. 83 230. 04, 323.00 17.96
34 230. 04, 352. 0018. 06/232. 04, 420. 00|18. 19234. 04, 488. 00 18. 32|236. 04, 556. 00|18. 44
35 236.04, 585.00 18. 54 238. 0 4, 655. 00 18. 67 240. 04, 725. 00 18. 80 242. 04, 795. 00/18. 93
36 242. 04, 824. 0019. 02|244. 04, 896. 00 19. 15246. 0 4, 968. 00 19. 28248. 05, 040. 00₤19. 41
37 248. 05, 069.00 19. 50 250. 05, 143. 00 19. 63 252. 05, 217. 00 19. 76 254. 05, 291. 00 19. 89
38 254. 05, 320. 00 19. 97 256. 05, 396. 00 20. 11 258. 05, 472. 00 20. 24 260. 05, 548. 00 20.37
39 260.05, 577.00 20. 45 262. 05, 655. 00 20. 59|264. 05, 733. 0020. 72|266. 05, 811. 0020. 85
40 266.05, 840. 00 20. 93 268. 0|5, 920. 00|21. 07₤270. 06, 000. 00 21. 20 272. 06, 080. 00 21. 33
41 272.06, 109. 00 21. 41 274. 06, 191. 00 21. 55 276. 06, 273. 00|21. 68 278. 06, 355. 00₤21. 82
42 278. 06, 384.00 21.89 280. 06, 468. 00 22. 03 282. 06, 552. 00 22. 16 284. 06, 636. 0022. 30
43 284. 06, 665.00 22. 37 286. 06, 751. 00 22. 51 288. 06, 837. 0022. 64 290. 06, 923. 00 22. 78
44 290. 06, 952. 00 22. 85 292. 07, 040. 00|22. 99 294. 07, 128. 00 23. 12296. 07, 216. 00|23. 26
45 296. 07, 245. 00|23. 33|298. 07, 335. 00|23. 46|300. 0|7, 425. 00 23. 60 302. 07, 515. 0023. 74
46 302. 07, 544. 00 23. 80304. 07, 636. 0023. 94 306. 07, 728. 0024. 08308. 07, 820.00 24. 22
47 308.07, 849. 00 24. 28310. 07, 943. 00 24. 42 312. 08, 037. 00 24. 56314. 08, 131. 00 24. 70
48 314. 08, 160. 00 24. 76 316. 08, 256. 00 24. 90318. 08, 352. 00 25. 04 320. 08, 448. 00 25. 17
49 320.08, 477.00 25. 24 322. 08, 575. 00 25. 38 324. 08, 673. 00 25. 52 326. 08, 771. 00 25. 65
50 326. 08, 800. 00 25. 71|328. 0|8, 900. 00|25. 85₤330. 09, 000. 00 25. 99,332. 09, 100.00 26. 13
00 25. 71 328. 08,
8533
00/25 09.
216
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1
Continued

Depth
Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
T
A
T
T
A
T
T
A
T
A
g
11 101.0
858.00
7.49 116.0
913.00 7.64
972.00
8.04 122. 0
1,032.00 8. 20
8.58 128.0
9. 12 134.0
1,157.00 8.75
1,288.00 9.30
9.65 140.0
748.00 7.15|106. 0 803.00 7.33 111.0
12 107.0 852.00 7.68112, 0 912.00 7.87 117.0
13 113.0 962.00 8.21118. 01, 027.00 8.40 123. 01, 092. 00
14 119. 01, 078.00 8.73 124. 01, 148. 00 8. 93 129. 01, 218.00
15 125. 0 1,200.00 9.24 130. 01, 275.00 9. 45 135. 01, 350. 00
01,
16 131.01, 328.00 9.75 136. 01, 408. 00 9. 97 141. 01, 488.00 10. 18 146. 0
17 137.01, 462. 00 10. 26 142. 01, 547.00 10. 49 147. 01, 632. 00 10. 70 152. 0
18 143.01, 602. 00 10. 76 148. 01, 692. 0011. 00 153. 01, 782.00 11. 22 158. 0
19 149.01, 748.00 11. 27 154. 01, 843. 00 11. 51 159. 01, 938.00 11. 73 164.0
1, 425.00 9.84
1, 568. 0010. 37
1, 717.00 10. 90
1,872.00 11.43
2,033.00|11.95
20 155. 01, 900.00 11. 77 160. 02, 000. 00 12. 01 165. 02, 100.00 12. 25 170.0 2,200.00 12. 47
21 161.02, 058.00 12. 26 166. 02, 163. 00 12. 52 171. 02, 268.00 12.75 176. 02, 373.00 12. 98
22 167.02, 222.00 12. 76 172. 02, 332. 00 13. 02177. 02, 442.00 13. 26 182. 0
23 173. 02, 392.00 13. 25 178. 02, 507. 00 13. 52 183. 02, 622.00 13. 77 188. 0
24 179.02, 568.00 13. 75 184. 02, 688. 00 14.02 189. 02, 808. 00 14. 27 194.0
2, 552. 0013. 49
2, 737.00 14.00
2, 928.00 14. 51
3, 752.00 16. 52
3, 973.00 17.02
25 185.0 2,750.00 14. 24/190. 02, 875. 00 14. 51 195. 03, 000. 00 14. 77 200. 0 3,125.00 15.02
26 191.0 2, 938. 00 14. 73 196. 03, 068. 00|15. 01 201. 03, 198.00 15. 27 206. 0 3,328.00 15.52
27 197.03, 132. 00|15. 22|202. 03, 267.00₤15. 50 207.03, 402.00 15.77 212.03, 537. 0016. 02
28 203. 03, 332.00 15. 71 208. 03, 472. 00 15. 99 213. 03, 612.00 16. 26 218. 0
29 209.03, 538.00 16. 20 214. 03, 683. 00 16. 49 219. 03, 828. 00 16. 76 224. 0
30 215.03, 750.00 16. 69 220.03, 900.00 16. 98 225. 04, 050. 00 17. 25 230. 0
31 221.03, 968.00 17. 17 226. 04. 123. 00 17. 47231. 04, 278. 00 17. 75 236.0
32 227.04, 192. 00 17. 66 232. 04, 352. 00 17. 95 237. 04, 512. 0018. 24|242. 0
33 233.04, 422, 0018. 14238. 04, 587.00 18. 44 243. 0/4, 752. 00 18. 73248. 0
34 239.04, 658. 00 18. 63|244. 04, 828. 00 18. 93|249. 0|4, 998. 00 19. 22|254. 0
35 245. 04, 900.00 19. 11 250. 05, 075. 00 19. 42 255. 05, 250. 00|19. 71|260. 0|
36 251.05, 148.00 19. 60 256. 05, 328. 00 19. 90 261.05, 508. 00 20. 20 266.0
37 257.05, 402.00 20.08 262. 05, 587.00 20. 39 267.05, 772.00 20. 69 272.0
38 263. 05, 662.00 20. 56 268. 05, 852.00 20. 88 273. 06, 042. 00 21. 18 278.0
39 269.05, 928. 00|21. 05|274. 06, 123. 00 21. 36 279. 06, 318.00 21.66 284.0
40 275.06, 200.00 21. 53 280. 06, 400. 00 21. 84 285. 06, 600.00 22. 15290. 0
41 281. 06, 478. 00|22. 01₤286. 0[6, 683. 00 22. 33|291. 06, 888.00 22. 64 296.0
42 287.0 6, 762. 00 22. 49 292. 06, 972. 00|22. 81 297. 07, 182. 00 23. 12|302. 0|
43 293. 07, 052.00 22. 97 298. 07, 267. 00 23. 29 303. 07, 482.00 23. 61 308. 0
44 299. 07, 348.00 23. 46 304. 07, 568. 00 23. 78 309. 07, 788.00 24.09 314.0
4, 200.00 17.52
4, 433.00 18.02
4, 672. 00|18. 51
4, 917.00 19. 01
5, 168. 00 19. 50
5, 425. 00|19. 99
5, 688.00 20. 48
5,957.00 20.97
6, 232.00 21. 47
6, 513.00 21.95
6, 800.00 22. 44
7,093.00 22.93
7, 392.00 23. 42
7, 697.00 23. 91
8, 008. 00 24. 39
45 305. 07, 650.00 23. 94 310. 07, 875. 00 24. 26|315. 08, 100. 00 24. 57 320.0 8, 325, 00 24.88
46 311.07, 958. 00 24. 42316. 08, 188. 00 24. 74 321. 08, 418. 00 25.06 326. 0 8, 648.00 25. 37
47 317.08, 272. 00 24. 90 322. 08, 507. 00 25. 22 327. 08, 742. 00 25. 54 332.0 8, 977.00 25. 85
48 323.08, 592. 00|25. 38|328. 08, 832. 00 25. 71|333. 0|9, 072. 00|26. 03[338.0|| 9, 312.00 26. 34
49 329.08, 918. 00 25. 86|334. 09, 163. 00 26. 19339. 09, 408. 00 26. 51 344. 0 9,653.00 26. 82
50 335.09, 250.00 26. 34 340. 09, 500. 00 26. 67 345. 09, 750.00 26. 99 350. 0 10, 000. 00 27. 31
HYDRAULIC TABLES
217
Table 12.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued
T, and

Depth
T
60 feet
Bottom width Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
A
T
-
T
A
T T
A
T
T
A
8. 12 146.0
8.72 152. 0
9.31 158. 0
9.89 164. 0
1, 243. 00
1, 392.00
1, 547.00
8.31156.0
8.93 162. 0
9.54 168.0
1, 353.00 8.48
1,512.00 9.11
1,677. 00 9.74
1,848.00 10. 35
7.90 136.01, 133.00
8.48 142. 01, 272.00
9.05148.01, 417.00
9.61 154.01, 568.00
1, 708. 00 10. 13174. 0
11 126. 01, 023.00
12 132. 01, 152. 00
13 138.01, 287.00
14 144. 01, 428.00
15 150. 01, 575.00 10. 17 160. 01, 725. 00 10. 46 170. 0
16 156.0 1,728.00 10. 72 166.01, 888. 0011. 03 176.0
17 162.0 1.887.00 11. 26 172. 02, 057.00 11. 59182. 0
18 168. 02, 052. 00 11. 80 178. 02, 232.00 12. 14188. 0
19 174.02, 223. 00|12. 34|184. 02, 413. 00 12. 69|194. 0|
20 180.02, 400.00 12.87 190.02, 600.00 13. 23 200.0
21 186.02, 583, 00 13. 40 196. 02, 793.00 13. 77 206. 03, 003. 00 14. 11 216.0
22 192.02, 772.00 13. 92 202. 02, 992. 00 14. 31 212. 0
23 198. 02, 967. 00 14. 44 208. 03, 197. 00 14. 84218. 0
24 204.03, 168.00 14. 96 214. 03, 408. 00 15. 37 224. 0
25210. 03, 375.00 15. 47 220. 03, 625. 00 15.89 230.0
26 216.03, 588. 00|15. 99/226. 0|3, 848. 00|16. 41|236. 0
27 222.03, 807.00 16. 50 232, 04, 077.00 16. 93 242. 0
28 228.04, 032.00 17.01 238. 04, 312.00 17. 45|248.0
29 284. 04, 263.00 17.51 244. 04, 553. 0017. 97 254. 0
30 240.04, 500. 00 18. 02 250. 04, 800. 00 18. 48 260. 0
31 246.04, 743. 00 18. 52 256. 05, 053. 00 18. 99 266. 0
32 252. 04, 992. 00 19.03 262. 05, 312. 00 19. 50 272.0
33 258. 05, 247.00 19. 53 268. 05, 577.00 20.01 278.0]
34 264. 05. 508.00 20. 03/274. 05, 848. 00 20. 52 284.0
1,875.00 10. 72 180.0 2,025.00 10.95
2,048.00 11. 30 186. 02, 208.00 11. 55
2, 227.00 11.88192. 0 2,397.00 12. 14
2, 412. 00 12. 44198. 0 2, 592.00 12.72
2, 603. 00₤13. 00|204. 0 2, 793.00 13. 29
2,800.00 13. 56 210.0
3, 212.00 14. 66 222. 0
3, 427.00 15. 20 228.0
3, 648. 00 15. 74 234. 0
3,875.00 16. 27|240. 0
4, 108. 00 16. 81 246. 0
4, 347.00 17. 34 252. 0
4, 592.00|17. 86|258. 0
4, 843. 00 18. 39 264. 0
5, 100.00 18. 91 270.0
5, 363.00 19. 43 276.0]
5, 632.00 19. 94 282.0
5, 907. 00|20. 46|288.0
6, 188.00 20. 97 294.0
6, 475. 00|21. 49|300.0
6, 768. 00 22.00 306. 0
7,067.00 22. 51 312. 0
7, 372.00 23. 01 318.0
35 270.05, 775.00|20. 53|280. 06, 125. 00|21. 02|290. 0|
36 276. 06.048. 00 21. 02/286. 06, 408. 00 21. 53 296.0
37 282.06, 327.00 21. 52 292. 06, 697.00 22. 03₤302. 0
38 288. 06, 612. 00 22. 02 298. 06, 992.00 22. 53₤308. 0
39 294. 06, 903.00 22. 51 304. 07, 293. 00 23. 03314.07, 683.00 23. 52 324. 0
40 300.07,200.00 23.00 310. 07, 600.00 23. 53 320.0
41306. 07, 503.00 23. 50316. 07, 913. 00 24.03326. 0
42 312. 07, 812. 00|23. 99|322. 0|8, 232. 00|24. 53|332. 0|
43 318. 08, 127. 00 24. 48 328. 08, 557. 00 25. 02338.0
44 324. 08, 448. 0024. 97334. 08, 888. 00 25. 52 344. 0
8,000.00 24. 03330. 0
8, 323. 00|24. 53|336. 0
8,652. 00|25. 03|342. 0|
8, 987.00 25. 53 348. 0
9, 328.00 26.04 354.0
3,000.00|13. 86
3, 213.00 14. 42
3, 432.00 14.98
3, 657.00 15. 53
3,888.00 16.08
4, 125.00 16. 63
4, 368.00 17. 17
4, 617.00 17.71
4, 872. 00 18. 24
5, 133. 00 18. 77
5, 400.00 19. 30
5, 673.00 19. 83
5,952.00 20.36
6, 237.00 20.88
6, 528.00 21. 40
6,825.00 21.92
7, 128.00 22. 44
7, 437.00 22.95
7, 752.00 23.47
8,073.00 23.98
8, 400.00 24. 49
8, 733.00 25.00
9,072, 00|25. 51
9, 417.00 26.02
9, 768.00 26. 52
45 330.08, 775. 00 25. 46|340. 09, 225.00 26.01 350.0 9,675.00 26. 54|360. 010, 125.00 27.03
46 336. 09, 108. 00 25. 95 346. 09, 568. 00 26. 51 356. 010, 028. 00 27.03 366. 010, 488.00 27.53
47 342. 09, 447. 00|26. 44|352. 09, 917. 00|27. 00|362. 0|10, 387. 00 27. 53|372. 010, 857. 00 28. 04
48 348. 09, 792. 00 26. 93 358. 010,272.00 27. 50 368. 0 10, 752. 00 28. 03 378. 011, 232. 00 28. 54
49 354.0 10,143.00 27. 42|364. 0|10,633.00|27. 99|374. 0|11, 123. 00【28. 53|384. 011, 613. 00 29.04
50 360. 0 10,500.00 27. 91 370. 0 11,000.00 28. 48 380. 011, 500. 00 29. 02 390. 012, 000, 00 29. 54
0.00 027.
563189°-44— -15
218
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

| Depth
T
Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
T
A
Τ
A
T
A
A
11166.0 1,463.00 8. 63 176. 0
12172.0 1,632.00 9.28 182. 0
13178.0 1,807.00 9.92188. 0
14184.0 1,988. 00 10. 54/194. 0
15190.0 2, 175. 00 11. 16 200.0
16196.0 2,368. 00 11. 77 206. 0
17 202.0 2, 567. 00 12. 37 212. 0
18208.0 2, 772. 00 12. 96 218. 0
19214.0 2,983. 00 13. 55 224. 0
20 220.0 3,200. 00 14. 13 230. 0
21226.0 3, 423. 00|14. 70|236. 0
22|232.0 3,652. 00 15. 27 242. 0
23 238.0 3,887. 00 15. 84 248. 0
24244. 0 4, 128. 00 16. 39 254. 0
25 250.0 4,375.00 16. 95 260. 0
26 256. 0 4, 628. 00 17. 50 266. 0
27262.0 4,887. 0018. 05 272. 0
28268.0 5,152. 00 18. 59 278. 0
29274.0 5,423. 0019. 13 284. 0
3.0 280.0 5, 700. 00 19. 67 290.0
31286.0 5,983. 00 20. 21 296. 0
32 292.0 6, 272. 00 20. 74 302. 0
33 298.0 6, 567. 00 21. 27 308. 0
34 304.0 6,868. 00/21. 80₤314. 0
35310.0 7, 175. 00|22. 33|320. 0
36316. 0 7, 488. 00|22. 85|326. 0
37322.0 7, 807. 00 23. 37332.0
38328.08, 132. 00 23. 89 338. 0
39334.0 8, 463. 00 24. 41 344. 0
1, 573.00 8. 76186. 0
1, 752. 00] 9.42192. 0
1, 937.00 10. 08/198. 0
2, 128. 00|10. 72|204. 0
2, 325. 00 11. 35210.0
2, 528. 00 11.97 216.0
2, 737.00 12. 58 222. 0
2, 952. 00 13. 19228. 0
3, 173. 0013. 79 234. 0
3, 400.00 14. 38 240. 0
3, 633. 00|14. 96|246. 0
3,872.00 15. 54 252. 0
4, 117.00 16. 12258.0
4, 368.00 16. 69 264. 0
4, 625. 00 17. 25/270. 0
4, 888.00 17.81 276. 0
5,157.00 18. 37 282. 0
5, 432.00 18. 92288. 0
5, 713. 0019. 47|294. 0||
6,000.00 20. 02 300. 0
6, 293.00 20. 56306. 0
6, 592.00 21. 10312. 0
6, 897. 0021. 64|318. 0
7, 208. 00|22. 18|324. 0
7, 525. 00 22. 71 330. 0
7,848.00|23. 24|336. 0
8, 177.00 23. 77342. 0
8, 512.00 24. 30 348.0
8, 853.00 24.82354.0
1, 683.00 8.88196.0
1,872. 00|| 9. 56₤202. 0
2,067.00 10. 22208. 0
2, 268. 00|10. 88|214. 0
2, 475.00 11. 52 220.0
2, 688.00 12. 15226. 0
2, 907. 00 12. 78232. 0
3, 132.00 13. 39 238. 0
3, 363. 00|14. 00[244. 0)
3, 600. 00 14. 60 250. 0
3,843. 0015. 20|256. 0
4, 092. 00 15. 79 262. 0
4, 347.00 16. 38 268. 0
4, 608. 00 16. 95 274. 0
1,793.00 8.98
1,992. 00 9.67
2, 197. 0010. 35
2, 408. 00 11. 02
2, 625. 00 11.67
2, 848. 00 12. 32
3, 077.00 12. 95
3, 312.00 13. 58
3, 553.00 14. 20
3, 800. 00 14. 82
4, 053. 00 15. 42
4, 312.00 16. 02
4, 577.00 16. 62
4, 848. 0017. 20
4, 875.00 17.53 280.05, 125. 00 17.79
5, 148. 0018. 10 286. 0 5, 408.00 18. 37
5, 427.00 18. 66292.0 5, 697.00 18. 94
5, 712. 00₤19. 23|298.0 5, 992. 00|19. 51
6, 003. 00|19. 78|304. 0 6, 293. 00 20.08
6, 300.00 20. 34 310. 0
6, 603. 00 20. 89316.0
6, 912. 0021. 44|322. 0
7, 227. 00|21. 99328. 0
7, 548. 00|22. 53|334. 0|
7,875.00 23. 07|340. 0|
8, 208. 0023. 61|346. 0)
8, 547. 0024. 14|352. 0|
8, 892. 0024. 68 358. 0
9, 243. 00 25. 21 364. 0
6, 600.00 20. 64
6, 913.00 21. 20
7, 232.00 21.76
7, 557. 00|22. 31
7, 888. 00|22. 86
8, 225. 00 23. 41
8, 568. 00 23. 95
8, 917.00 24.50
9, 272. 00 25. 04
9, 633.00 25. 57
40340.0 8,800. 00 24. 93 350. 0 9, 200. 00 25. 35 360. 0 9, 600.00 25. 74 370. 010, 000. 00 26. 11
41346.0 9, 143. 00 25. 45356. 0 9, 553.00|25. 87|366. 0 9, 963. 0026. 27 376. 010, 373. 00 26. 64
42 352.0 9,492. 00|25. 96|362. 0 9, 912. 00|26. 39|372. 0|10, 332. 00|26. 79₤382. 0[10, 752. 00₤27. 18
43 358.0 9, 847.00 26. 47 368. 0|10, 277. 00|26. 91₤378. 0|10, 707. 00 27. 32|388. 011, 137. 0027. 71
44 364. 010, 208. 00 26. 99 374. 010, 648. 00|27. 42|384. 0|11, 088. 00 27. 84 394. 011, 528. 00 28. 24
45370. 010, 575. 00 27. 50 380. 011, 025. 00 27. 94 390. 011, 475. 00 28. 36 400. 011, 925. 00 28. 76
46376. 010, 948. 00 28. 01 386. 011, 408. 00 28. 45 396. 011, 868. 00 28. 88 406. 012, 328. 00 29. 29
47382. 011, 327. 00 28. 51 392. 011, 797. 00 28. 97402. 012, 267. 00 29. 40412. 012, 737. 00 29. 81
48 388. 011, 712. 00 29. 02 398. 012, 192. 00 29. 48408. 0 12, 672. 00 29. 92418. 0|13, 152. 00 30. 33
49394. 012, 103. 00 29. 53 404. 012, 593. 0029. 99414. 013, 083. 0030. 43 424. 013, 573. 00|30. 85
50/400.012, 30.03410.013, 000.00 30.50 420.013, 30.95430. 000.00
50 400. 0 12,500.00 30. 03 410. 013, 000. 0030. 50 420. 013, 500.00 30. 95 430. 014, 000. 0031. 37
HYDRAULIC TABLES
219
Table 12.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1—Continued
T, and

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T Τ
A
T
A
T
T
A
T
11 206. 01, 903. 00
9.08 216. 02, 013. 00 9. 17 226. 02, 123. 00
12 212, 02, 112. 00 9.78 222. 02, 232. 00 9.88 232.0 2, 352.00
13 218. 02, 327.00 10. 47 228. 02, 457. 00 10. 58|238.0 2, 587. 00
14 224. 02, 548. 00 11. 15/234. 02, 688. 00|11. 27244. 0 2, 828. 00
15 230.02, 775.00 11. 82 240. 02, 925. 00|11. 95|250.0||
16 236. 03, 008. 00 12. 47 246. 03, 168. 00 12. 61 256. 0
17 242. 03, 247. 00 13. 12 252. 03, 417.00 13. 27 262. 0
18 248. 03, 492.00 13. 76 258. 03, 672. 00 13. 92 268. 0
19 254. 03, 743. 00 14. 39 264. 03, 933. 00|14. 56 274. 0
20 260. 04, 000. 00|15. 01/270. 04, 200. 00|15. 19280. 0
21 266.04, 263. 00 15. 63 276. 0|4, 473. 00|15. 82|286. 0
22 272.04, 532. 0016. 24 282. 04, 752. 0016. 43 292. 0
23 278.04, 807.00 16. 84/288. 05, 037. 00 17.05|298. 0|
24 284. 05, 088. 00 17. 44 294. 05, 328. 00 17. 65 304. 0
25 290. 05, 375. 00 18. 03 300. 05, 625. 00 18. 26310. 0
26 296. 05, 668. 00 18. 62 306. 05, 928. 0018. 85316. 0
27 302. 05, 967. 00 19. 20 312. 06, 237. 00 19. 44322. 0
28 308. 06, 272. 00[19. 78|318. 06, 552. 00 20. 03₤328. 0|
29 314. 06, 583. 00|20. 35|324. 06, 873. 00 20. 61 334. 0
30 320.06, 900. 00|20. 93|330. 07, 200. 00|21. 19340. 0|
31 326. 07, 223. 00 21. 49₤336. 07, 533. 0021. 77346. 0
32 332. 07, 552. 00 22. 06|342. 07, 872. 00 22. 34352. 0
33 338. 07,887. 00|22. 62|348. 08, 217. 00 22. 91358. 0
34 344. 08, 228. 00|23. 18₤354. 08, 568. 00|23. 47|364. 0
35 350. 08, 575. 00|23. 73₤360. 08, 925. 00₤24. 03370.0||
36 356. 08, 928. 00 24. 28/366. 09, 288. 00|24. 59 376.0
37 362.09, 287. 00|24. 83|372. 09, 657. 00|25. 15₤382. 0|
38 368. 0 9, 652. 00 25. 38|378. 0 10,032.00 25. 70388. 0
39 374. 0 10,023.00 25. 92 384. 0 10,413.00 26. 25394. 0
40 380. 010,400.00 26. 46|390. 010,800.00 26. 80 400. 0
41 386. 010,783.00 27. 00|396. 0 11,193.00 27. 35406. 0
42 392.0 11,172.00|27. 54₤402. 0/11,592.00 27. 89 412. 0
43 398. 0 11,567.00 28. 08 408. 0 11,997.00 28. 43418. 0
44 404. 0 11,968.00 28. 61 414. 0 12,408.00 28. 97 424. 0
45 410. 012,375.00 29. 14 420. 0 12,825.00 29. 51 430. 0
46 416. 0 12,788.00 29. 68 426. 0 13,248.00 30. 05 436. 0
47 422.0 13,207.00 30. 20 432. 0 13,677.00 30. 58442. 0
48 428.013,632.00 30. 73 438. 0|14,112.00 31. 11 448. 0
49 434. 0 14,063.00 31. 26 444. 014,553.00 31. 64 454. 0
9.25 236.0 2,233.00 9.32
9.97 242.0| |2, 472.00 10. 05
10. 68 248. 02, 717.00 10. 77
11. 38 254. 0 2, 968.00 11. 48
3,075. 00 12. 07 260. 0
3, 328. 00 12. 74 266. 0
3, 587.00 13. 41 272. 0
3,852. 00 14. 07 278. 0
4, 123. 00|14. 72 284. 0
4, 400. 00|15. 36|290. 0
4, 683. 00 15. 99 296. 0
4, 972. 00 16. 62|302. 0
5, 267. 00|17. 24|308. 0
5, 568. 00 17. 86 314. 0
5,875.00 18. 47 320. 0
6, 188.00 19.07 326. 0
6, 507. 0019. 67 332. 0
6, 832. 00|20. 27 338. 0
7, 163. 00|20. 86₤344. 0|
7, 500. 00|21. 44|350. 0|
7, 843. 00 22. 03356. 0
8, 192. 00 22. 61 362. 0
8, 547. 00|23. 18|368. 0
8, 908. 00|23. 75|374. 0|
3, 225. 00|12. 18
3, 488.00 12. 86
3, 757.00 13. 54
4, 032. 00 14. 21
4, 313. 0014. 86
4, 600.00 15. 51
4, 893. 0016. 16
5, 192.00 16. 79
5, 497.00|17. 43
5,808. 00 18.05
6, 125.00 18.67
6, 448. 00 19. 28
6, 777.00 19.89
7, 112. 00 20. 49
7, 453. 00 21. 09
7,800.00 21. 68
8, 153. 00 22. 27
8, 512.00 22.86
8, 877. 00 23. 44
9, 248. 00|24. 02
9,275.00 24. 32|380.0|| 9,625.00 24. 59
9,648.00 24. 89 386. 0 10,008.00 25. 17
10,027.00 25. 45 392. 0| 10,397.00 25. 73
10,412.00 26. 01|398. 0 10,792.00|26. 30
10,803.00 26. 57 404. 0 11,193.00 26.86
11,200.00 27. 12|410. 0| 11,600.00|27. 42
11,603.00 27. 67|416. 0| 12,013.00 27.98
12,012.00 28. 22|422. 0 12,432.00 28. 54
12,427.00 28. 77 428. 0 12,857.00 29. 09
12,848.00 29. 31|434. 0 13,288.00 29.64
13,275.00 29. 86 440. 0 13,725.00 30. 19
13,708.00 30. 40446. 0 14,168.00 30.74
14,147.00 30. 94 452. 0 14,617.00 31. 28
14,592.00 31. 48|458. 0 15,072.00|31.83
15,043.00|32. 01|464. 0 15,533.00|32. 37
50 440.0 14,500.00 31. 78 450.0 15,000.00 15,000.01
32. 17 460. 0 15,500.00 32. 55 470.0 16,000.00 32. 91
220
HYDRAULIC TABLES
Table 12.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
T
T
Α
T
20
27
29
31
33
37
=221 12222 2223* ***** ***** 2008 SESS
11
246. 02, 343.00
252.02, 592.00
9.39
256.0 2,453, 001
9.45
266.0 2, 563.00
9.51
10. 13
262.0 2,712,00
10.20
272.0 2,832. 00
10.26
13
258.0 2,847. 00|
10.86
268.0 2,977.00
10.94
278.0 3, 107.00
11.01
14
264. 0 3, 108.00
11.57
274.03, 248.00
11.66
284.0 3, 388. 00|
11.74
15 270.0 3,375.00
12.28
280.0 3, 525.00
12.37
290.0| 3,675.00
12.46
16
276.03, 648. 00
12.97
286.0 3,808. 00
13.08
296.0 3, 968. 00
13. 17
17
282.0 3, 927.00
13.66
292.0)
292. 0 4, 097.00
13.77
302. 0 4, 267.00
13.88
18 288. 0 4, 212.00
14.33
298. 0 4, 392. 00
14.45
308.0) 4, 572.00
14.57
19
294. 0 4, 503. 00
15.00
304. 0 4, 693.00
15. 13
314.0 4, 883.00
15.25
300.0 4,800.00
15.66
310.0 5,000.00
15.80
320. 0| 5, 200.00]
15.93
21
306. 0 5, 103. 00
16. 31
316.05, 313. 00|
16.46
326.0|| 5, 523. 00
16.59
312.0 5,412.00
16.96
322.0) 5, 632.00
17.11
332.05, 852.00
17.26
318.0 5,727.00
17.60
328. 0 5,957.00
17.76
338. 0 6, 187.00]
17.91
24
324. 0 6,048. 00)
18.23
334. 0 6, 288.00
18. 40
344. 0 6, 528. 00
18. 56
25
330. 0 6, 375. 00.
18.85
340.0 6, 625.00
19.03
350.0 6, 875. 00
19.20
26
336.0 6, 708.00
19.48
346.0 6,968. 00
19.66
356.0 7, 228. 00
19.83
342.0 7,047.00
20.09
352. 0
7, 317.00
20.28
362.0 7,587. 00
20.46
28
348.0 7, 392. 00
20.70
358.0 7, 672.00
20.90
368.0 7, 952. 00|
21.09
354.0 7,743.00
21.31
364. 08, 033. 00
21.51
374.0 8,323. 00
21.71
30
360.0 8, 100. 00
21.91
370.0 8, 400.00
22.12
380.0❘ 8,700.00|
22.32
366. 08, 463. 00
22.50
376.0 8, 773.00
22.72
386.0 9,083.00
22.93
32
372.08, 832.00
23.10
382.0 9, 152.00
23.32
23.32
392.0) 9, 472. 00
23.54
378.0 9, 207.00
23.69
388.0 9, 537.00
23.92
398.0 9, 867. 00
24. 14
34
384.0 9, 588.00
24. 27
394.0 9, 928. 00
24.51
404. 010, 268.00
24.74
35
390.0 9,975. 00
24.85
36
396. 010, 368. 00
25. 43
400. 010, 325.00
406. 010, 728. 00
25. 10
410. 010, 675.00
25.33
25.68
416.011, 088. 00!
25.93
402. 010, 767.00
26.01
412. 011, 137.00
26. 27
422. 011,
422. 011, 507. 00
26.51
38
408.011, 172. 00
26.58
418. 011, 552.00
26.84
428. 011, 932.00)
27.10
39
414. 011, 583. 00
27.15
424. 011, 973.00!
27.42
434. 012, 363. 00
27.68
40
420. 012, 000. 00
27.71
430. 012, 400.00
27.99
440.0|12, 800. 00
28.26
41
426. 012, 423. 00
28.28
436. 012, 833.00
28.56
446. 0/13, 243.00
28.83
42
432. 012, 852. 00
28.84
442. 013, 272.00
29.13
452.0|13, 692. 00
29.41
43
438.013, 287.00
29.40
448. 0|13, 717.00
29.69
458.014, 147. 00
29.98
44
444. 013, 728.00
29.96
454.014, 168.00
30.26
464.014, 608.00
30.54
45
450. 014, 175.00
30.51
460. 014, 625.00
30.82
470.015, 075.00
31.11
46
456. 014, 628.00 31.06
466.015, 088.00
31.37
476. 015, 548. 00
31.67
47
462. 015, 087.00
31.61
472. 015, 557.00
31.93
482. 0[16, 027. 00.
32. 23
48
468. 015, 552. 00
32.16
478.016, 032.00
32. 48
488.016, 512. 00
32.79
49
474. 0/16, 023. 00
32.71
484. 016, 513.00
33.03
494. 017, 003.00
33.35
, 50
33.90
480. 016, 500.00
0|16,
33.58 500.017, 500. 00
33. 25 490.017000.00
0/17, 000. 00
HYDRAULIC TABLES
221
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
r
*
T
A
Т
T
A
T
જ
T
A
T
0.2
3.4
0.54 0.16 4.4
0.74 0.17
5.4
0.94 0.17
6.4
1.14 0.18
0.4
4.8
1. 36
0.6
6.2
.28
2.46.39 7.2
5.8
1.76 .30
6.8
2. 16
.31 7.8
2.56 .32
3.06 .42 8.2
3.66
.44 9.2
4.26 .45
0.8
7.6
3.84
.49 8.6
4. 64
.53 9.6
5. 44
.55 10.6
6.24 .58
1.0 9.0
5. 50
59 10.0
6.50.63 11.0
1.2 10.4
1.4 11.8
7.44.69 11.4
9.66 .79 12.8
8.64 .74 12.4
11.06
1.6
13.2
12. 16 .89 14.2
1.8
14.6
14.94 .99 15.6
.84 13.8
13.76 .94 15.2
16.74 1.04 16. 6
•
7.50
9.84.77 13.4
12.46 .88 14.8
15. 36 .98 16. 2
18.54 1.08 17.6
66 12.0
8.50 .69
11.04 .80
13.86.91
16.96 1.02
20.34 1.12
2.4
2.0 16.0
2.2 17.4
18.8
2.6 20.2
2.8
21.6
18.00 1.09 17.0
21.34 1.18 18.4
24.96 1.28 19.8
28.86 1.38 21.2
33.04 1.48 22.6
20.00 1.14| 18.0
23. 54 1.24| 19.4|
27.36 1.33 20.8
31.46 1.43| 22.2
35.84 1.53 23.6
22.00 1.19 19.0
24.00 1.23
25.74 1.291 20.4
29.76 1.39 21.8
34.06 1.49 23.2
38.64 1.58 24.6
27.94 1.33
32.16 1.43
36.66 1.53
41.44 1.63
3.0 23.0
37.50 1.57 24.0
40.50 1.63 25.0
43.50 1.68 26.0
46.50 1.73
3.2
24. 4
42.24 1.67 25.4
45.44 1.73 26.4
48.64 1.78 27.4
51.84 1.83
3.4
25.8
47.26 1.77 26.8
50.66 1.83 27.8
54.06 1.88 28.8
57.46 1.93
3.6
27.2
3.8 28.6
4.0 30.0
4.2
31. 4
52.56 1.86 28.2
58.14 1.96 29.6
64.00 2.06 31.0
70. 14 2. 15 32.4
56.16 1.92】 29.2|
61.94 2.02 30.6
59.76 1.98 30. 2
65.74 2.08 31.6)
63.36 2.03
69.54 2.13
4.4
32.8
4.6 34.2
76.56 2.25 33.8
83.26 2.35 35.2
68.00 2.12] 32.0||
74.34 2.21 33. 4
80.96 2.31 34.8
72.00 2.17 33.0
78.54 2.27| 34.4|
87.86 2.41| 36.2
4.8 35.6
90.24 2.44 36.6
95.04 2.50 37.6
85.36 2.37 35.8
92.46 2.47] 37.2
99.84 2.56 38.6
76.00 2.23
82.74 2.33
89.76 2.42
97.06 2.52
104.64 2.62
5.0 37.0
97.50 2.54 38.0
5.2 38.4
105.04 2.64 39.4|
5.4 39.8
5.6 41.2
5.8 42.6
112.86 2.73 40.8
120.96 2.83 42. 2
129.34 2.92 43.6
6.0 44.0
6.2 45. 4
6.4 46.8
6.6 48.2
6.8 49.6
138.00 3.02 45.0
146.94 3. 12 46. 4
156. 16 3. 21 47.8
165.66 3.31 49.2
175.44 3. 41 50.6|
102.50 2.60 39.0
110. 24 2.70 40, 4
118.26 2.79 41.8
126.56 2.89 43.2
135. 14 2.99 44.6
144.00 3.08 46.0
153. 14 3.18 47.4
162. 56 3. 28 48.8
172.26] 3.37| 50.2
182. 24 3.47 51.6
107.50 2.66 40.0
115.44 2.76 41.4
123,66 2.86| 42.8
132. 16 2.95 44.2
140.94 3.05 45.6
150.00 3.15 47.0
159.34 3.24 48. 4
168.96 3.34 49.8
178.86 3.44 51.2
189.04 3.53 52.6
112.50 2.72
120.64 2.81
129.06 2.91
137.76 3.01
146. 74 3. 11
156.00 3.20
165.54 3.30
175.36 3.40
185. 46 3.50
195.84 3.59
7.051.0
7.5 54.5
8.0 58.0
8.5 61.5
9.0 65.0
185.50 3.50 52.0
211.87 3.74 55. 5
240.00 3.98 59.0
269.87 4. 22
301.50 4.47 66.0
62. 5
192.50 3.57 53.0
219.37 3.81 56.5
248.00 4.05 60.0
278.37 4.29 63.5
310.50 4.53 67.0
199.50 3.63 54.0
226.87 3.87 57.5
256.00 4.11 61.0
206.50 3.69
234.37 3.93
264.00 4.17
286.87 4.35 64. 5
295.37 4.42
319.50 4.60 68.0
328.50 4.66
9.5 68.5
10.0 72.0
334.87 4.71 69.5
370.00 4.95 73.0
344.37 4.77 70.5
380.00 5.01 74.0
353.87 4.84 71.5
390.00 5.08 75.0
363.37 4.90
400.00 5.14
10.5
438.37 5.38
75.5
427.87 5.32 78. 5
406.87 5. 19 76.5
417.37 5.25 77.5
222
HYDRAULIC TABLES
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
Τ
A
↑
འ
T
A
Τ T
A
0.2
7.4
0.4 8.8
1.34 0.18
2.96 .33
8.4
9.8
0.6 10.2
4.86 47
11. 2
0.8
11.6
7.04.60 12.6
1.54 0.18 9.4
3.36 .34 10.8
5.46 .48 12,2
7.84 .61 13.6
1.0
13. 0
1.2
14. 4
9.50 .72 14.0
12.24.83 15.4
1.4
15.8
1.6 17.2
15.26 .94 16.8
18.56 1.05 18. 2
1.8 18.6
22.14 1.16 19.6
10.50 .74 15.0
13.44 .85 16.4
16.66 .97 17.8
20.16 1.08 19.2
23.94 1.19 20.6
1.74 0.18 10.4
3.76 .34 11.8
6.06.49 13.2
8.64 .63 14.6]
11.50 .75 16.0
14.64.87 17.4
18. 06 .99 18. 8
21.76 1.11 20. 2
25.74 1.22 21.6
•
1.94 0.19
4. 16
6.66.50
9.44 .64
12.50 .77
15.84.89
19.46 1.01
23.36 1.13
.35
27.54 1.25
2.0
20.0
26.00 1.26 21.0
28.00 1.30| 22.0
2.2
21.4
30.14 1.37| 22.4|
2.4
22.8
34.56 1.47 23.8
2.6
24. 2
39.26 1.57 25. 2
2.8
25.6
44. 24 1.68 26.6
32. 34 1.41 23.4
36.96 1.51 24.8
41.86 1.61 26. 2
47.04 1.72] 27.6
30.00 1.33] 23.0
34. 54 1.44 24. 4
39.36 1.55 25.8
44.46 1.65 27.2
49.84 1.76 28.6
32.00 1.36
36.74 1.47
41.76 1.58
47.06 1.69
52.64 1.79
3.0 27.0
49.50 1.78 28.0
52.50 1.82 29.0
3.2 28.4
55.04 1.88 29.4
58.24 1.92 30.4
55.50 1.86 30.0
61.44 1.96 31.4
58.50 1.90
64.64 2.00
3.4 29.8
60.86 1.98 30.8
64.26 2.02 31.8
67.66 2.07] 32.8
71.06 2.11
3.6 31.2
66.96 2.08 32. 2
70.56 2. 12 33. 2
74.16 2.17| 34.2|
77.76 2.21
3.8
32.6
73.34 2.18 33.6
4.0
34.0
80.00 2.28 35.0
4.2
35. 4
4. 4
36.8
4. 6
38.2
86.94 2.38 36.4
94. 16 2.48 37.8
101.66 2.57 39.2
4.8
39.6
109.44 2.67 40.6
77.14 2.23 34.6
84.00 2.33| 36.0|
91. 14 2.43 37.4
98.56 2.53 38.8
106.26 2.62 40.2
114. 24 2.72 41.6
80.94 2.27 35.6
84.74 2.31
88.00 2.37 37.0
95.34 2.47 38.4
102.96 2.57 39.8
110.86 2.67 41. 2
119.04 2.77 42.6
92.00 2.41
99.54 2.52
107.36 2.62
115.46 2.72
123.84 2.82
5.0
41.0
5.2
42.4
5. 4
43.8
5. 6
45. 2
5.8
46.6
117.50 2.77 42.0
125.84 2.87| 43.4|
134.46 2.97 44.8
143.36 3.07 46.2
152.54 3.16 47.6
122.50 2.82 43.0
131,04 2,92 44. 4
139.86 3.02 45.8
148.96 3.12 47. 2
158.34 3. 22 48.6
3.22
6.0 48.0
6.2 49.4
6.4 50.8
6. 6
52.2
6.8
53.6
162.00 3.26] 49.0]
171.74 3.36 50. 4
181.76 3.46 51.8
192.06 3.55 53.2
202.64 3.65 54.6
168.00 3.31] 50.0]
177.94 3.41 51.4
188. 16 3. 51 52.8
198.66 3.61 54.2
209.44 3.71| 55.6
127.50 2.87 44.0
136. 24 2.97 45.4
145. 26 3.07 46.8
154.56 3.17 48. 2
164. 14 3.27 49.6
160. 16 3. 22
169.94 3.32
132.50 2.92
141.44 3.02
150.66 3. 12
174.00 3.37 51.0
184. 14 3.47 52.4
194.56 3.56 53.8
205.26 3.66 55.2
216.24 3.76 56.6
180.00 3.42
190.34 3.52
200.96 3.61
211.86 3.71
223.04 3.81
7.0 55. 0
7.5 58.5
8.0 62.0
8.5 65.5
9.0 69.0
213.50 3.75 56.0
241.87 3.99 59, 5
272.00 4.231 63.0
303.87 4.48 66. 5:
337.50 4.72 70.0
220.50 3.80 57.0
249.37 4.05 60.5
280.00 4.29] 64.0
312. 37 4.54 67.5
4.54 67.5
346.50 4.78 71.0
4.78 71.0
227.50 3.86 58.0.
256.87 4.10 61.5
288.00 4.35 65.0
320.87 4.59 68.5
234.50 3.91
264.37 4.16
296.00 4.40
329,37 4.65
355.50 4.84 72.0
364.50 4.89
9.5 72.5 372.87 4.96| 73.5
10.0 76.0 410.00 5.20 77.0
382.37 5.02 74. 5
420.00 5.26 78.0
391.87 5.08 75.5
430.00 5.32 79.0
401.37 5. 14
440.00 5.38
10.5 79.5 448.87 5.44 80.5
480.37 5.62
459.37 5. 51 81.5
5.51
469.87 5.56 82.5
HYDRAULIC TABLES
223
Table 13.—Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 32 to 1-Continued
T, and

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
Τ
A
Τ
T
A
T
ร
T
A
T T
A
T
0.2
11. 4
0.4
12.8
0.6
14.2
0.8
15. 6
2. 14 0.19 13.4
4.56.35 14.8
7.26.51 16. 2
10.24 .65| 17.6
11.84
2.54 0.19 15.4
5.36.36 16.8
8.46 .52 18.2
.66 19.6
13.44
68 21.6
•
1.0 17.0
1.2 18.4
13.50
17.04
.78 19.0
15. 50
.80 21.0
17.50
.82 23.0
2.94 0.19 17.4
6.16.36 18.8
9.66 .53 20.2
3.34 0.19
6.96 .37
10.86.53
15.04 .69
19.50 .84
.91] 20.4
19. 44
.94 22.4
1.4
19.8
20.86 1.03 21.8
23. 66
1.07 23.8
21.84 .96 24.4
26.46 1.09] 25.8
1.6
21. 2
1.8
22.6
24.96 1.15 23.2
29. 34 1.27 24. 6
28. 16
1.19 25. 2
32.94 1.31| 26.6
31.36 1.22 27.2
36.54 1.35 28.6
24. 24.98
29.26 1.12
34.56 1.25
40.14 1.38
2.0 24.0
2.2 25.4
2.4
26.8
2.6
28.2
34.00 1.38 26.0
38.94 1.50| 27.4
44. 16 1.61 28. 8
49.66 1.72 30.2
38.00 1.43 28.0
43. 34 1.55 29.4
42.00 1.47 30.0
47.74 1.59 31.4
46.00 1.51
52.14 1.63
2.8
29.6
55.44 1.82 31.6
48.96 1.66| 30.8
54.86 1.77| 32.2
61.04 1.88 33.6
53.76 1.71 32.8
58.56 1.75
60.06 1.82 34.2
65.26 1.87
66.64 1.94 35.6
72.24 1.99
3.0 31.0
3.2 32.4
3.4
33.8
3.6
35. 2
3.8
36.6
61.50 1.931 33.0
67.84 2.04 34. 4
74.46 2. 14| 35.8|
81.36 2.25 37.2
88.54 2.35 38.6
67.50 1.99 35.0
73.50 2.05 37.0
79.50 2.10
74. 24 2.10 36.4
81.26 2. 21 37.8.
88.56 2.32 39.2
96. 14 2.42 40.6
80.64 2.16 38. 4
87.04 2.21
88.06 2.27 39.8
95.76 2.38 41.2
103. 74 2.49 42. 6
4.0 38.0
4.2 39.4
4.4 40.8
4.6
42.2
4.8 43.6
96.00 2.45 40.0
103.74 2.56 41.4
111. 76 2.66 42.8
120.06 2.76 44.2
128.64 2.86 45.6
104.00 2.53] 42.0
112. 14 2. 63 43.4
120.56 2.74 44.8
129.26 2.84 46.2
138.24 2.94 47.6
112.00 2.60 44.0
120. 54 2.70 45.4
129.36 2.81 46. 8
138.46 2.92 48. 2
147.84 3.02| 49.6|
94.86 2.33
102.96 2.44
111. 34 2.55
120.00 2.66
128.94 2.77
138.16 2.88
147.66 2.98
157.44 3.09
5.0 45.0
5.2 46.4
5.4 47.8
5.6 49.2
5.8 50.6
6.0 52.0
6.2
53. 4
137.50 2.96 47.0
146. 64 3.06 48. 4
156.06 3. 16
165.76 3.27 51.2
175.74 3.37 52.6
186.00 3.46 54.0
196. 54 3.56 55.4
49.8
147.50 3.05 49.0
157.04 3.15 50.4
166.86 3.25 51.8
176.96 3.35 53.2
187.34 3.45 54.6
157.50 3. 12| 51.0
167.44 3. 23 52.4
177.66 3.33 53.8
188. 16 3.44 55. 2
198.94 3. 54 56.6
167.50 3. 20
177.84 3.30
188.46 3.41
199.36 3.51
210.54 3.62
6.4
54.8
54.8
207.36 3.66 56. 8
6.6 56.2
218.46 3.76 58.2
6.8 57.6
229.84 3.86 59.6
198.00 3.56 56.0
208.94 3.66 57.4
220.16 3.76 58.8
231.66 3.86| 60.2
243.44 3.96 61.6
210.00 3.64 58.0
221.34 3.74 59.4
232.96 3.84 60.8
244.86 3.95| 62.2
257.04 4.05 63.6
222.00 3.72
233.74 3.82
245. 76 3.93
258.06 4.03
270.64 4. 13
7.0 59.0
241.50 3.96 61.0
255.50 4.06 63.0
7.5 62.5
271.87 4. 21 64. 5
8.0 66.0
304.00 4.45 68.0
8.5 69.5
9.0 73.0
337.87 4.70 71.5
373.50 4.95 75.0
286.87 4.31 66. 5
320.00 4.56 70.0
354. 87 4.80| 73. 5
391.50 5.05 77.0
269.50 4.15 65.0
301.87 4.40 68.5
336.00 4.65 72.0
371.87 4.90 75.5
409.50 5. 15
283.50 4.23
316. 87 4.49
352.00 4.74
388.87 4.99
79.0
427.50 5.24
9.5 76.5
10.0 80.0
410.87 5. 19 78.5
450.00 5.43 82.0
429.87 5.30 80.5
470.00 5. 54 84.0|
448. 87 5.40 82.5
490.00 5.65 86.0
467.87 5.49
510.00 5.74
10.5 83.5
553.87 5.99
490.87 5.68] 85.5
532.87 5.89 89.5
511. 87 5.79 87.5
224
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued
T, and

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T
A
Τ
A
до T
A
0.2
19.4
0.4 20.8
0.6 22.2
3.74 0.19 21.4
7.76.37 22.8
12.06.54 24. 2
0.8 23.6
16.64 .70 25.6
13.26
18.24
4. 14 0.19 23.4
8.56.37 24.8|
.54] 26.2
.71 27.6
4.54 0.19 25.4
9.36 .38 26.8
4.94 0.19
10.16 .38
14.46
19.84
.55 28.2
15.66 .55
.71 29.6
21.44 .72
1.0 25.0
21.50 .85 27.0
1.2
26.4
26.64 1.00 28.4
1. 4
27.8
32.06 1.14| 29.8
23.50 .86 29.0
29.04 1.01 30.4
34.86 1.15 31.8
1.6
29.2
37.76 1.27| 31.2
1.8
30.6
43.74 1.41 32.6
40.96 1.29 33.2
47.34 1.43 34.6
25.50 .87 31.0
31.44 1.02 32.4
37.66 1.17 33.8
44.16 1.31|| 35.2
50.94 1.45 36.6]
27.50 .88
33.84 1.03
40.46 1.18
47.36 1.33
54.54 1.47
2.0 32.0
50.00 1.54 34.0
2.2 33.4
56.54 1.66] 35.4
2.4 34.8
63.36 1.79 36.8
2.6 36.2
70.46 1.91 38. 2
2.8 37.6
77.84 2.03| 39.6
54.00 1.56 36.0
60.94 1.69 37.4
68.16 1.82 38.8
75.66 1.94|| 40.2
83.44 2.07 41.6
58.00 1.59 38.0
65.34 1.72 39.4
72.96 1.85 40.8
80.86 1.98 42.2
89.04 2.10 43.6
3.0 39.0
85.50 2.15 41.0
3. 2 40.4
93.44 2.26 42. 4
3.4
3.6
41.8
43.2
3.8 44.6
101.66 2.38] 43.8|
110.16 2.49 45. 2
118.94 2.60 46.6
91.50 2.19 43.0
99.84 2.31 44. 4
108.46 2.42 45.8
117.36 2.54 47.2
126. 54 2.65 48.6
4.0
46.0
4.2
4.4 48.8
4.6 50.2
47.4
128.00 2.72 48. 0
137.34 2.83| 49.4|
146.96 2.94 50.8
136.00 2.77 50.0
145.74 2.88 51.4
155.76 2.99 52.8
4.8
51.6
156.86 3.05 52.2
167.04 3.16 53.6
166.06 3.10 54.2
176.64 3.21 55.6
97.50 2.22 45.0
106.24 2.35 46.4
115.26 2.47 47.8
124.56 2.58 49.2
134. 14 2.70 50.6
144.00 2.82 52.0
154. 14 2.93| 53.4
164.56 3.05 54.8
175.26 3.16 56.2
186. 24 3.27 57.6
62.00 1.61
69.74 1.74
77.76 1.87
86.06 2.00
94.64 2.13
103.50 2.26
112.64 2.38
122.06 2.50
131.76 2.62
141.74 2.74
152.00 2.86
162.54 2.98
173.36 3.09
184.46 3.21
195.84 3.32
5.0
53.0
5.2
54. 4
5.4 55.8
5.6 57.2
5.8 58.6
177.50 3.26 55.0
188.24 3.37| 56.4|
199.26 3.48 57.8
210.56 3.58 59. 2
222.14 3.69 60.6
187.50 3.32 57.0
198.64 3.43 58.4
210.06 3. 54 59.8
221.76 3.65 61.2
233.74 3.76 62.6
197.50 3.38 59.0
209.04 3.49 60.4
220.86 3.60 61.8
232.96 3.71 63.2
245.34 3.82 64.6
207.50 3.44
219.44 3.55
231.66 3.66
244. 16 3.77
256.94 3.88
8.0 60.0
6.2
61. 4
6.4
62.8
6.6 64.2
6.8 65.6
234.00 3.79 62.0
246.14 3.90] 63.4)
258.56 4.00] 64.8)
271.26 4.11 66. 2
284.24 4.21 67.6
246.00 3.86 64.0
258. 54 3.97 65.4
271.36 4.07 66.8
284.46 4. 18 68. 2
297.84 4.29 69.6
258.00 3.93 66.0
270.94 4.04 67.4
284. 16 4. 14 68.8
297.66 4.25 70.2
311.44 4.36 71.6
270.00 3.99
283. 34) 4.10
296.96 4.21
310.86 4.31
325.04 4.42
7.5
7.0 67.0
70.5
297.50 4.31 69.0
8.0 74.0
8.5
77.5
9.0 81.0
331.87 4.57 72.5
368.00 4.83 76.0]
405.87 5.08 79.5
445.50 5.33 83.0
311.50 4.39 71.0
346.87 4.65 74.5
384.00 4.91 78.0
422.87 5.16 81.5
463.50 5.42 85.0
325.50 4.46| 73.0|
361.87 4.72| 76.5|
400.00 4.98 80.0
439.87 5.24 83.5
481.50 5.50 87.0
339.50 4.53
376.87 4.79
416.00 5.06
456.87 5.32
499, 50] 5.58
9.5 84.5
10.0 88.0
486.87 5.59 86.5
530.00 5.84 90. 0
505.87 5.67 88, 51
550.00 5.93 92.0
524.87 5.76 90.5
570.00 6.01 94.0
543.87 5.84
590.00 6.09
10.5 91.5
637.87 6.35
574.87 6.09 93.5
616.87 6.27 97.5
595.87 6.18 95.5
HYDRAULIC TABLES
225
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T T
A
T
T
A
T
A
0.2
27.4
0.4 28.8
0.6 30.2
16.86
5.34 0.19 29.4
10.96 .38 30.8
.56 32.2
5.74 0.19 31.4
6.14 0.20 33.4
6.54 0.20
11.76
.38 32.8
12.56 .38 34.8
13.36 .38
18.06
.56 34.2
19.26 .56 36.2
20.46 .56
0.8 31.6
23.04
.72 33.6
24.64
.73 35.6
26.24 .73 37.6
27.84 .74
1,0
1.2
1.4
1.6
1.8
02 - 6 0
33.0
29.50
.89 35.0
34. 4
35.8
37.2
36.24 1.04 36.4
43.26 1.20 37.8
50.56 1.34| 39.2|
38.6
58. 14 1.49 40.6
31.50 .89 37.0|
38.64 1.05| 38.4
46.06 1.21| 39.8
53.76 1.36 41.2
61.74 1.50 42.6
33.50 .90 39.0
41.04 1.06] 40.4|
48.86 1.22 41.8
56.96 1.37| 43.2
65.34 1.52 44.6
35.50 .90
43.44 1.07
51.66 1.22
60.16 1.38
68.94 1.53
2.0
40.0
2.2
41.4
66.00 1.63 42.0
74. 14 1.76 43.4
2.4 42.8
2.6
44. 2
2.8
45.6
82.56 1.90 44.8
91.26 2.03 46.2
100: 24 2.16 47.6
70.00 1.64 44.0
78.54 1.78 45. 4
87.36 1.92 46.8
96.46 2.06 48.2
105.84 2.19 49.6
3.0 47.0
3.2 48.4
3.4 49.8
3.6 51.2
109.50 2.29 49.0
119.04 2.41 50.4
128.86 2.54| 51.8|
138.96 2.66 53.2
115.50 2.32 51.0
125.44 2.45 52.4
135.66 2.57 53.8
146.16 2.70 55.2
3.8 52.6
149.34 2.78 54.6
156.94 2.82 56. 6
4.0 54.0
160.00 2.90 56.0
4.2 55.4
170.94 3.02 57.4
4.4 56.8 182. 16 3.14 58.8
4.6 58.2
4.8 59.6
193.66 3.26 60.2
205.44 3.37 61.6
168.00 2.94 58.0
179.34 3.06 59.4
190.96 3.18 60.8
202.86 3.30 62.2
215.04 3.42 63.6
5.0 61.0
5.2 62.4
5.4 63.8
5.6 65. 2
5.8 66.6
217.50 3.49 63.0
229.84 3.60 64.4
242.46 3.71 65.8
255.36 3.82 67.2
268.54 3.94 68.6
227.50 3.53 65.0
240.24 3.65 66.4
253.26 3.76| 67.8
266.56 3.88 69.2
280.14 3.99 70.6
70.6
74.00 1.66 46.0
82.94 1.80 47.4)
92.16 1.94] 48.8|
101.66 2.08 50.2
111.44 2.21| 51.6|
121.50 2.34 53.0
131.84 2.47| 54.4
142.46 2.60 55.8
153.36 2.73 57.2
164.54 2.85 58.6
176.00 2.98 60. 0
187.74 3.10 61.4
199.76 3.22 62.8
212.06 3.34 64.2
224. 64 3.46 65.6
237.50 3.58 67.0
250.64 3.69] 68.4
264.06 3.81 69.8
277.76 3.92 71.2
291.74 4.04 72.6
78.00 1.68
87.34 1.82
96.96 1.96
106.86 2.10
117.04 2.23
127.50 2.37
138.24 2.50
149.26 2.63
160.56 2.76
172. 14 2.89
184.00 3.01
196. 14 3.13
208.56 3.26
221.26 3.38
234. 24 3.50
247.50 3.62
261.04 3.74
274.86 3.85
288.96 3.97
303.34 4.09
6.0 68.0
282.00 4.05] 70.0
6.2 69.4
6.4 70.8
6.6 72.2
6.8 73.6
7.0 75.0 353.50 4.59 77.01
7.5 78.5 391.87 4.86 80.5
8.0 82.0 432.00 5.13 84.0
8.5 85.5 473.87 5.39 87.5
9.0 89.0 517.50 5.65 91.0
295.74 4.16| 71.4
309.76 4.27 72.8
324.06 4.38 74.2
338.64 4.49 75.6
294.00 4. 10
308.14 4.21 73.4
73.4
322.56 4.32 74.8
337.26 4.43 76. 2
352.24 4. 54 77.6
72.0
72.0
306.00| 4.15 74.0
318.00 4.20
320.54 4.27 75. 4
332.94 4.32
335.36 4.38 76.8
350.46 4.49 78.2
365.84 4.60) 79,6
348.16 4.43
363.66 4.54
379.44 4.66
367.50 4.65 79.0
367.50 4.65 79.0
406.87 4.93 82, 5
82.5
448.00 5.19 86.0
490.87 5.46 89.5
535.50 5.73 93.0
381.50 4.71 81.0
395.50 4.77
421.87 4.99 84.5
436.87 5.04
464.00 5.26 88.0
480.00 5.32
507.87 5.53 91.5
524.87 5.59
93.0
553.50 5.79 95. 0]
571.50 5.86
9.5 92.5
10.0 96.0
562.87 5.91| 94.5
610.00 6.17 98.0
581.87 5.99 96.5
630.00 6.25 100.0
600.87 6.06 98.5
619.87 6.13
650.00 6.32102.0
670.001 6.39
10.5 99.5
721.87 6.66
658.87 6.43 101.5
700.87 6.58/105.5
679.87 6.51|103. 5|
226
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
↑
T
A
" T
A
T T
A
T
0.2
36. 4
0.4
37.8
14. 56
•
0.6
39.2
22. 26
0.8
40.6
30. 24
•
7.14 0.20 41.4
38 42.8
.57 44.2
74 45.6
8.14 0.20 46.4
16. 56.39 47.8
25.26.57| 49.2
34.24.75 50.6
9.14 0.20 51.4
18. 56 .39 52.8
28.26.57 54.2
38.24.75 55.6
10.14 0.20
20.56 .39
31.26.57
42.24 .76
1.0 42.0
1.2
43. 4
1.4
44.8
1.6
46. 2
1.8
47.6
38.50 .91 47.0
47.04 1.08 48.4
55.86 1.24 49.8
64.96 1.39 51.2
74.34 1.55 52.6
43.50 .92 52.0
53.04 1.09] 53.4|
62.86 1.25 54.8
72.96 1.41 56. 2
83.34 1.57 57.6
48.50 .93 57.0
59.04 1. 10 58.4
69.86 1.27 59.8
80.96 1.43 61, 2
92.34 1.59 62.6
53.50 .93
65.04 1.11
76.86 1.28
88.96 1.44
101.34 1.61
2.0
49.0
84.00 1.69] 54.0
2.2 50.4
2.4
51,8
2.6
53. 2
2.8
54. 6
93.94 1.84 55.4
104.16 1.99 56.8
114.66 2. 13 58. 2
125. 44 2.26 59.6
94.00 1.72 59.0
104.94 1.87 60.4
116.16 2.02 61.8
127.66 2.17] 63. 2
139.44 2.31 64.6
104.00 1.75| 64.0|
115.94 1.90 65.4
128.16 2.05 66.8
114.00 1.77
126.94 1.92
140.16 2.08
140.66 2.20] 68.2
153.66 2.23
153.44 2.35 69.6
167.44 2.38
3.0 56.0
3.2
57.4
3.4
58.8
136.50 2.40 61.0
147.84 2.54| 62,4|
159.46 2.67 63.8
151.50 2.45 66.0
166.50 2.49 71.0
181.50 2.53
163.84 2.59 67.4
176.46 2.73 68.8
179.84 2.63 72.4
195.84 2.67
3.6
60.2
3.8 61.6
171.36 2.80 65.2
183.54 2.93 66.6
189.36 2.86| 70.2
202. 54 2.99 71.6
193.46 2.77 73.8
207.36 2.91 75. 2
221.54 3.05 76.6
210.46 2.82
225.36 2.96
240.54 3. 10
4.0 63.0
4.2
64. 4
4.4
65.8
4.6 67.2
4.8
68.6
196.00 3.06] 68.0
208.74 3. 18 69.4
221.76 3.31| 70.8|
235.06 3.43 72. 2
248.64 3.55 73.6
216.00 3.12 73.0
229.74 3. 26 74.4
243.76 3.38 75.8
258.06 3.51 77.2
272.64 3.64 78.6]
236.00 3.18 78.0
250.74 3.32 79.4
265.76 3.45 80.8
281.06 3.58 82.2
296. 64 3.71 83.6
256.00 3.24
271.74 3.37
287.76 3.51
304.06 3.64
320.64 3.77
70.0
262.50 3.68 75.0
71.4
276.64 3.80 76.4
72.8
291.06 3.92 77.8
74.2
305.76 4.04 79. 2
75.6
320.74 4.15 80.6
287.50 3.76| 80,0]
302.64 3.89 81.4
318.06 4.01 82.8
333.76 4. 13 84.2
349. 74 4, 25 85.6
312.50 3.84 85.0
328.64 3.97 86.4
345.06 4.09 87.8
361.76 4.22 89.2
378.74 4.34 90.6
337.50 3.91
354.64 4.04
372.06 4. 17
389.76 4.29
407.74 4.42
6.0
77.0
6.2
78.4
6.4 79.8
6.6 81.2
6.8 82.6
7.0 84.0
7.5 87.5
8.0 91.0
8.5 94.5
9.0 98.0
9.5 101.5
10.0 [105.0
336.00 4.27 82.0
351.54 4.39 83.4
367.36 4.50 84.8
383.46 4.62 86.2
399.84 4.73 87.6
416.50 4.85 89.0
459.37 5. 13 92.5
504.00 5.41 96.0
550.37 5.68] 99.5
598.50 5.95 103. 0
648. 37 6. 22 106. 5
700.00 6.49110.0
366.00 4.37 87.0
382. 54 4.49 88.4
399. 36 4.61 89.8
416. 46) 4.73 91.2
416.46 4.73 91.2
433.84 4.85 92.6
451.50 4.96 94.0
496. 87 5.25 97.5
544.00 5.54 101. 0
592.87 5.82104. 5|
643. 50 6. 10 108.0
695.87 6.37 111.5
750.00 6.65 115.0
396.00 4.47 92.0
413.54 4.59 93.4
431. 36 4. 71 94. 8
431.36 4.71 94.8
449. 46 4.83 96. 2
467.84 4.95 97.6
534.37 5.37 102. 5
584.00 5.66 106.0
635.37 5.94109. 5
688. 50 6. 23 113. 0
688.50 6.23 113.0
743. 37 6.51|116.5
800.00 6.79120.0
790.87 6.64
850.00 6.92
426.00 4.55
444. 54 4.67
463.36 4.80
482.46 4.92
501.84 5.04
486.50 5.07 99.0
486.50 5.07 99.0
521.50 5. 17
571.87 5.47
624.00 5.76
677.87 6.06
733. 50 6.35
10.5 108.5
910.87 7.20
753.37 6.76 113. 5
858.37 7.07 123. 5
805.87 6.92|118. 5
HYDRAULIC TABLES
227
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
↑ T
A
↑ T
A
T T
A
T
0.2 61.4
12.14 0.20| 71.4
0.4 62.8
0.6 64.2
24. 56
.39 72.8
0.8
65.6
37.26 .58 74.2
50.24 .76| 75.6|
1.0 67.0
1.2 68.4
1.4 69.8
63.50
.94 77.0]
1.6 71.2
1.8
72.6
77.04 1. 12 78. 4
90.86 1.29] 79.8
104.96 1.46| 81. 2|
119. 34 1.63| 82. 6|
2.0
74.0
134.00 1.80 84.0
2.2
75.4
148.94 1.96] 85.4]
2.4
76.8
2.6
78.2
2.8 79.6
164.16 2.12 86.8
179. 66 2.28 88. 2
195.44 2.43 89.6
154.00 1.82 94.0
170.94 1.99 95.4
188.16 2. 15 96.8
205.66 2.31 98.2
223.44 2.47 99.6
14. 14 0.20 81.4
28.56 .39 82.8
43.26.58 84.2
58.24 .77 85.6
73.50.95 87.0
89.04 1.13] 88.4
104.86 1.31 89.8
120.96 1.48 91.2
137.34 1.65) 92.6)
16.14 0.20| 91.4|
32. 56.39 92.8
49.26 .58 94.2
66. 24 .77 95.6
83.50.96 97.0
101.04 1. 14 98.4
118.86 1.32 99.8
136.96
155.34
174.00 1.84 104.0
18. 14 0.20
36.56
.39
55. 26
.59
74.24
.77
93.50
.96
113.04 1. 14
132.86 1.33
1.49 101. 2
1.67 102. 6
152.96 1.50
173.34 1.68
194.00 1.86
192.94
2.01 105. 4
214.94 2.03
212. 16
2.18 106. 8
236.16 2. 20
231.66
2.34 108. 2
257.66 2.37
251. 44
2. 50 109. 6
279.44 2.53
3.0
81.0
211.50 2.58 91.0
3.2
82.4
227.84 2.74 92.4
3. 4
83.8
244.46 2.88 93.8
3.6
85.2
261.36 3.03 95.2
3.8
86.6
278. 54 3. 18 96.6
241.50 2.63 101.0
259.84 2. 79|102. 4
278.46 2.94 103.8
297.36 3.09 105. 2
316. 54 3. 24 106.6
271.50
2.67 111.0
301.50 2.70
291.84
2.83 112. 4
323.84 2.86
312.46
2.98 113.8
346.46 3.02
333. 36
3.14 115. 2
369.36 3. 18
354. 54
3. 29 116.6
392.54 3.34
4.0
88.0
4.2
89.4
296.00 3.32 98.0
313.74 3.46 99.4
4.4
90.8
331.76 3.60 100.8
336.00 3.39 108. 0
355.74 3. 54|109. 4
375, 76] 3.68|110. 8
376.00
3.45 118.0
416.00 3.49
397.74 3.60|119. 4
439.74 3.65
419.76
3.75 120.8
463.76 3.80
4.6
92.2
350.06 3.74|102. 2
396.06
3.83 112. 2
442.06 3.90/122. 2
488.06 3.95
4.8
93.6
368. 64 3.88 103.6
416. 64
416. 64
3.97 113.6
3.97|113. 6
464. 64
4.04123. 6
512.64 4. 10
5.0 95.0
5.8 100.6
6.0 102.0
486.00 4.69 112.0
6.2 103. 41
506. 54 4.82 113.4
6.4 104.8
527.36 4.95 114, 8
6.6 106. 2
548.46 5.08 116. 2
6.8 107.6
569.84 5.20 117.6
7.0 109.0
7.5 112.5
591.50 5.33|119. 0]
646.87 5.64|122. 5|
8.0 116.0
8.5 119. 5
9.0 123.0
5.2
96.4
5.4 97.8
5.6 99.2
387.50 4.02 105. 0
406. 64 4. 16106.4
426.06 4.29 107.8
445. 76 4.42 109. 2
465.74 4.56 110.6
704.00 5.95 126.0
762.87 6.26 129.5
823.50 6.56 133.0
885.87 6.86 136. 5
9.5 126.5
10.0 130.0 950.00
437.50 4.11 115. 0
458. 64 4.25 116. 4|
480.06 4.39117.8
501.76 4.53 119. 2
523. 74 4.67 120. 6
546.00 4.80 122.0
568.54 4.94|123. 4
591.36 5.07 124.8
614.46 5.21 126. 2
637.84 5.34 127. 6
557.76
581. 74
606. 00 4.90 132. 0
630.54 5.04|133. 4|
655.36 5. 18 134. 8
680. 46 5. 31|136. 2
705.84 5.45 137. 6
661.50 5.47129.0 731.50
721.87 5.79132.5 796. 87
784.00 6. 11 136. 0 864.00
847.87 6. 43139. 5 932.87
913.50 6. 74 143. 01, 003. 50
980.87
7.15 140. 01, 050. 00
7.05 146. 51, 075. 87
7. 35 150. 01, 150. 00
5.92 142. 5 871.87 6.03
6.25 146. 0 944.00 6.37
6. 58 149. 51, 017.87 6.70
6. 90 153. 01, 093. 50 7.03
7. 21 156. 51, 170. 87 7.36
7. 53 160. 01, 250.00 7.68
487.50
510.64
534.06 4.48 127. 8
4. 19125. 0
537.50 4.25
4.33 126. 4
562.64 4.40
588.06 4.55
4.62 129. 2
4. 76130.6
613.76 4.69
639.74 4.84
666.00 4.98
692.54 5.12
719.36 5.27
746.46 5.41
773.84 5. 55
5.59 139. 0
801.50 5.69
10.5 133. 51, 015. 87
7.84 163. 51, 330. 87 8.00
7.45 143. 51, 120. 87
7.65 153. 51, 225. 87
228
HYDRAULIC TABLES
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
A
T
A
J
T
A
0.2 101.4
0.4 102.8.
0.6 104.2
61.26
0.8 105.6
20.14 0.20|111.4]
40.56.39 112.8
.59 114.2
82.24 .78 115.6
22.14 0.20 121.4
24.14 0.20131.4
26.14 0.20
44.56.39 122.8
48.56
.40 132.8
52.56
.40
67.26
.59 124.2
73.26
.59 134. 2
79.26
.59
90.24
.78 125. 6
98.24
.78 135.6
106. 24
.78
1.0 107.0 103.50 .96 117.0
1.2 108.4 125.04 1.15118.4
1.4 109.8 146.86 1.33 119.8
1.6 111.2 168.96 1.51 121.2
1.8 112.6 191.34 1.69122.6
113.50
.97 127.0
123.50
.97137.0]
133.50
.97
137.04| 1. 15|128. 4
160.86 1.34 129.8
184.96 1.52 131. 2
209. 34] 1.70|132. 6
149.04 1.16138. 4
174.86 1.34 139.8
200.96 1.53141. 2
227.34 1.71 142. 6
161.04 1.16
188.86 1.35
216.96 1.53
245. 34 1.71
2.0 114.0
2.2 115.4
2.4 116.8
2.6 118.2
2.8119.6
214.00 1.87124.0
236.94 2.04|125. 4
260.16 2.21 126. 8]
283.66 2.39 128.2
307.44 2. 55129.6
234.00 1.88 134. 0
258.94 2.05 135. 4
284.16 2.23 136.8
309.66 2.40₤138. 2
335. 44 2. 57 139. 6
254.00 1.89144.0
280.94 2.07 145. 4
308.16 2.24 146. 8
335.66 2.42|148. 2
363.44 2.59 149.6
274.00 1.90
302.94 2.07
332.16 2. 25
361.66 2.43
391.44 2.60
3.0 121.0
3.2 122.4
3.4 123.8
331.50 2.72 131.0
355.84 2.89132. 4
380.46 3.05133. 8
3.6 125.2 405. 36 3.21 135. 2
3.8 126.6
430.54 3.37|136. 6
361.50 2.74141.0
387.84 2.91 142. 4
414.46 3.08143.8
441.36 3.24 145. 2
468. 54 3.40146. 6
4.0 128.0
456.00 3.53 138. 0
496.00
3.57 148. 0
4.2 129.4
481.74 3.69 139. 4
523.74
3.73|149. 4
4.4 130.8
4.6 132. 2
4.8 133.6
5.0 135.0
507.76 3.85|140. 8
534.06 4.00|142. 2
560.64 4.15143. 6
551.76
3.88 150.8
580.06
608. 64
4.04 152. 2
4.20 153.6
536.00 3.59 158.0
565.74 3.76159.4
595.76 3.92|160.8.
626.06 4.08|162. 2
656.64 4.24 163. 6
391.50 2.76151.0
419.84 2.93 152.4
448.46 3.10 153.8
477.36 3.26 155. 2
506.54 3.43 156. 6
482. 46 3.12
513.36 3.29
544. 54 3.45
576.00 3.62
607. 74 3.78
639.76 3.95
672.06 4.11
704.64 4.27
421.50 2.78
451.84 2.95
5.2 136.4
5.4137.8
5.6 139.2
5.8 140.6
637.50 4.35 155.0
666.64 4.51 156. 4
696.06 4.66 157.8
725. 76 4.81 159. 2
755.74 4. 96 160. 6
6.0 142.0
6.2 143. 4
6.4 144.8
587.50 4.31 145. 0
614.64 4.46 146. 4
642.06 4.61 147. 8
669.76 4.76149.2
697.74 4.91150.6
726.00 5.05152.0
754.54 5.20 153.4
783.36 5.34 154. 8
6.6 146.2 812.46 5.49156.2
6.8 147.6 841.84 5.63|157.6
786.00 5.11 162. 0
816. 54 5. 26|163. 4
847.36 5. 41164. 8
878.46 5.56166. 2
909.84 5.70 167. 6
7.0 149.0 871.50 5.77159.0 941.50|
7.5 152.5 946.87
8.0 156. 01, 024. 00]
8.5 159. 51, 102. 87
9.0 163. 01, 183. 50
9.5 166. 51, 265. 87
10.0 170. 01, 350. 00
6. 12162. 51, 021.87|
6. 47|166. 01, 104. 00
6. 81 169. 51, 187. 87
7. 15173. 01, 273. 50
7.48176. 51, 360. 87|
7.81 180. 01, 450. 00|
5.85|169. 0|1, 011. 50|
6. 21|172. 51, 096. 87
6. 56176. 01, 184. 00
6. 91179. 51, 272. 87
7. 26183. 01, 363. 50
7. 60|186. 5|1, 455. 87
7.93190. 01, 550. 00|
5.92|179. 01, 081. 50 5.98
6. 28 182. 51, 171.87]| 6.35
6. 64 186. 01, 264. 00 6.71
7.00 189. 51, 357. 87 7.08
7.35 193. 01, 453. 50 7.43
7.70 196. 51, 550. 87 7.79
8.04|200. 01, 650. 00| 8.14
687.50 4.40 165. 0
718.64 4. 55 166. 4
737.50 4.43
770.64 4.59
750.06 4.71 167.8
781.76 4.86 169.2
813.74 5.02 170.6
804.06 4.75
837.76 4.91
871.74 5.06
846.00 5.17 172. 0 906.00 5.22
878.54 5.32 173.4 940.54 5.37
911.36 5.47 174. 8 975.36 5.52
944.46 5.62 176. 21, 010. 46 5. 68
977.84 5.77 177. 61, 045. 84) 5.83
10.5 173. 51, 435. 87
8. 38203. 51, 750. 87| 8.48
8. 14183. 51, 540. 87
8. 26193. 51, 645. 87
HYDRAULIC TABLES
229
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
A
T T
A
T
A
0.2 141.4
0.4 142.8
0.6 144.2
0.8 145.6
28.14 0.20 151.4
30.14 0.20 161. 4
32.14 0.20|171. 4
34.14 0.20
56. 56
85. 26
114.24.78 155. 6
40 152.8
60. 56
.40 162.8
64. 56
.40 172.8
68. 56
·
.40
59 154. 2
91.26
59 164.2
97.26
•
.59 174. 2
103.26
.59
122. 24
.78 165.6
130. 24
.79 175. 6
138.24
.79
1.0 147.01
143.50 .97 157.0
153.50
1.2 148.4
173.04 1.16 158, 4
185.04
1.4 149.8
1.6 151.2
1.8 152.6
202.86 1.35 159. 8
232.96 1.54 161. 2
263. 34| 1.72 162.6
216.86
.98167.0
1. 17168. 4
1.35 169. 8
248.96 1.54171. 2
281.34 1.72 172.6
163.50 .98 177.0
197.04 1.17178.4
230.86 1.36 179.8
264.96 1.54|181. 2
299.34 1.73|182. 6
173.50 .98
209.04 1.17
244.86 1.36
280.96 1.55
317.34 1.73
2.0 154.0
2.2 155.4
294.00 1.90164.0
324.94 2.08|165. 4
2.4 156.8
356.16 2.26 166.8
2.6 158. 21
2.8 159.6
387.66 2.44 168. 2
419. 44 2.62 169. 6
3.0 161.0
3.2 162. 4
3.4 163.8
3.6 165.2
3.8166.6
4.0 168.0
4.2169.4
4.4 170.8
4.6 172.2
4.8173.6
616.00 3.64 178.0
649.74 3.81|179. 4|
683.76 3.97 180.8
718.06 4.14 182. 2
752.64 4.30|183.6
5.0 175.0
5.2 176.4
5.4 177.8
787.50 4.46 185.0
822.64 4.63186. 4
858.06 4.79 187.8
893.76 4.94 189. 2
929. 74 5.10 190.6
5.6 179.2
5.8180.6
451.50 2.79171.0
483.84 2.96 172. 4
516. 46 3.13|173. 8|
549.36 3. 31|175. 2
582.54 3.47 176.6
966.00
6.0182.0
6.2 183. 41,002. 54
6.4 184. 81, 039. 36
6.6186. 21, 076. 46
6.8187. 61, 113. 84
7.0189.01, 151.50
7.5 192. 51, 246. 87
8.0196.
8.0 196. 01, 344. 00
8.5 199. 51, 442. 87
9.0 203. 01, 543. 50
9.5 206. 51, 645. 87
10.0 210.01, 750.00
314.00 1.91|174.0
346.94 2.09₤175. 4|
380.16| 2.27|176.8
413.66 2.45|178. 2|
447.44 2.63 179.6
481.50 2.80 181.0
515.84 2.98 182. 4|
550.46 3.15 183. 8
585.36 3.32185. 2
620, 54 3. 49 186. 6
656.00 3.66|188.0
691.74 3.83 189.4
727.76| 4.00|190.8
764.06 4.16 192. 2
800.64 4.33 193. 6
733. 74
771.76 4.02[200. 8
810.06 4.19【202, 2|
848.64 4.35 203.6
837.50 4.49 195. 0 887.50 4.52 205.0
874.64 4.66 196. 4 926.64 4.68 206. 4 978.64 4.71
912.06 4.82 197.8 966. 06 4.85 207. 81, 020. 06 4.87
207.81,020.06
949.76 4.98 199. 21, 005. 76 5.01 209. 21, 061. 76 5.04
987.74 5. 14 200. 61, 045. 74 5. 17 210. 61, 103. 74 5, 20
5.26 192. 01, 026. 00
5. 42 193. 41, 064. 54
5.57 194. 81, 103. 36
5. 72196. 21, 142. 46
5. 88197. 61, 181. 84
6.03 199. 01, 221, 50
6. 41202. 51, 321. 87
6. 78206. 01, 424. 00
7. 15 209. 51, 527. 87
15|209.
7. 51 213. 01, 633. 50
7.87 216. 51, 740. 87
8. 22 220. 01, 850.00
5. 30202. 01, 086.00
5. 46 203. 41, 126. 54
5. 61204. 81, 167. 36
5. 77 206. 21, 208. 46
5. 92 207. 61, 249. 84
5. 33 212. 01, 146.00
33|212.
5. 49 213. 41, 188. 54
5. 65 214. 81, 231.36
65|214.
5. 81 216. 21, 274, 46
5. 97 217. 61, 317. 84
5.36
5. 52
5.69
5.84
6.00
6.08 209. 01, 291. 50 6. 12 219. 01, 361. 50 6. 16
08/209. 50|| 12|219.
6. 46 212. 51, 396. 87 6. 51 222. 51, 471.87 6. 55
6. 84 216. 01, 504. 00 6. 89 226. 01, 584.00 6.94
504.00||
7. 21 219. 51, 612. 87 7. 27 229. 51, 697.877.32
7.27
7. 58 223. 01, 723. 50 7.64 233. 01, 813. 50 7. 70
7.94 226. 51, 835. 87
8.30230. 01, 950.00
8.01 236. 51, 930. 87
8. 38 240. 02, 050.00
8. 07
8.44
334.00 1.91184. 0
368.94 2.10|185. 4
404.16
354.00 1.92
390.94 2.10
2.28 186. 8
428. 16 2.28
439.66
2.46 188. 2
465.66 2.46
475. 44
2.64 189. 6
503.44 2.64
511.50
2.81 191.0
541.50 2.82
547.84 2.99/192. 4
579.84 3.00
584.46
3. 16193.8|
618.46 3.18
621.36
3.34 195. 2
657.36 3.35
658. 54
3. 51196. 6
696.54 3.52
696.00
3.68 198.0
736.00 3.70
3.85 199. 4
775.74 3.87
815. 76 4.04
856.06 4.21
896.64 4.38
937.50 4.54
10.5 213. 51, 855.87
8. 81
8. 57 223. 51, 960. 87
8.74 243. 52, 170. 87
8.66 233. 52, 065. 87
230
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
↑
T
A
T
A
0.2
181. 4
36. 14
0.20
191.4
38. 14
0.20
201.4
40. 14
0.20
0.4
182.8
72.56
.40
192.8
76.56
.40
202.8
80.56
.40
0.6
184. 2
109. 26
.59
194. 2
115. 26
59
204. 2
121.26 .59
0.8
185. 6
146.24
.79
195.6
154.24
.79
205.6
162.24
.79
1.0
187.0
183.50
.98
197.0
193. 50
.98
207.0
203.50
.98
1.2
188.4
221.04
1.17
198.4
233. 04
1. 17
208. 4
245. 04
1.17
1.4
189.8
258.86
1.36
199.8
272.86
1.36
209.8
286.86
1.36
1,6
191. 2
296.96
1.55
201.2
312.96
1.55
211. 2
328.96
1.55
1.8
192.6
335. 34
1.74
202, 6
353. 34
1.74
212.6
371.34
1.74
2.0
194.0
374.00
1.92
204.0
394.00
1.93
214.0
414.00
1.93
2.2
195. 4
412.94
2. 11
205.4
434.94
2.11
215.4
456.94
2.12
2.4
196.8
452. 16
2.29
206.8
476. 16
2.30
216.8
500. 16
2.30
2.6
198.2
491.66
2.47
208. 2
517.66
2.48
218. 2
543. 66
2.48
2.8
199.6
531.44
2.65
209.6
559.44
2.66
219.6
587.44
2.67
3.0
201.0
571.50
2.83 211.0
601.50
2.84
221.0
631.50
2.85
3.2
202.4
611.84
3.01
212.4
643.84
3.02
222.4
675.84
3.03
3. 4
203.8
652.46
3. 19
213.8
686.46
3.20 223.8
720.46
3.21
3.6
205.2
693.36
3. 36
215.2
729.36
3.37
225.2
765. 36
3.38
3.8
206.6
734. 54
3. 54
216. 6
772. 54
3.55
226. 6
810.54
3.56
4.0
208.0
776.00
3.71
218.0
816.00
3.72
228.0
856.00
3.74
4. 2
209.4
817. 74
3.88
219.4
859.74
3.90
229.4
901.74
3.91
4.4
210.8
859.76
4.05
220.8
903. 76
4.07
230.8
947.76
4.08
4.6
212. 2
902.06
4. 23
222. 2
948.06
4. 24
232. 2
994.06
4. 26
4.8
213.6
944.64
4.39
223.6
992. 64
4.41
233.6 1,040. 64
4.43
5.0
215.0
987.50
4. 56
225. 0
1,037. 50
4.58
235.0 1,087. 50
4.60
5.2
216.4 1,030. 64
4.73
226.4 1,082. 64
4.75
236.4 1, 134. 64
4.77
5.4
217.8 1,074. 06
4.90
227.8 1, 128. 06
4.92
237.8 1, 182. 06
4.94
5.6
219. 2 1, 117. 76
5.06
229. 2 1, 173. 76
5.09
239. 21, 229.76
5. 11
1
5.8
220. 61, 161. 74
5. 23
230. 6 1, 219. 74
5.25
240.6 1, 277. 74
5. 28
6.0
222.0 1,206. 00
5.39
232.0 1, 266. 00
5.42
242. 0 1,326.00
5. 44
6.2
223. 4 1, 250, 54
5. 55
233. 4 1, 312. 54|
5. 58
243.4 1, 374. 54
5.61
6. 4
224.8 1, 295. 36
5.72
234. 81, 359. 36
5.75
244.8 1,423. 36
5.77
6. 6
226. 2 1, 340. 46
5.88
236. 2 1, 406. 46
5.91
246.2 1,472. 46
5.94
6.8
227.6 1, 385. 84
6.04
237.6 1,453. 84
6.07
247.6 1, 521. 84
6. 10
7.0
229.0 1,431.50
6. 20
239.0 1,501. 50
6. 23
249.0 1,571. 50
6.26
7.5
232.5 1,546.87
6.59
242. 5 1, 621, 87
6.63
252.5 1, 696. 87
6.66
8.0
236.0 1,664. 00]
6.98
246.0 1,744. 00
7.03
256.0 1,824. 00
7.06
8.5
239.5 1, 782. 87
7.37
249.5 1,867.87
7.42
259. 5
1,952, 87
7.46
9.0
243.0 1,903. 50
7.75
253.0 1,993. 50
7.80
263.0 2,083. 50
7.85
9.5
246.5 2,025. 87
8.13
256.5 2, 120. 87
8.18
266.5 2,215. 87
8.23
10.0
250.0 2,150.00 8.50
260.0 2,250.00
8.56
270.0 2,350.00
8. 61
10, 5
8.99
253. 52, 275. 87 8.87
273.5 2,485. 87
263.5| 2, 380. 87
8.94
HYDRAULIC TABLES
231
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
Τ
Α
T
2
T
A
T
ร
T
A
T
11
79.0
12 86.0
445.50 5. 43| 80. 0
528.00 5.91 87.0
13 93.0
14 100.0
617.50 6.39 94.0
714.00 6.87 101. 0
478.50 5.62
564.00 6. 11
656. 50 6. 59
756.00 7.07
817.50 7.35/108.0
15 107.0
16 114.0 928.00
17 121. 01, 045. 50
18 128. 01, 170.00
19 135. 01, 301. 50
456.50 5.49 81.0
540.00 5.98 88.0
630.50 6.46 95.0
728.00 6.94 102. 0
467.50 5.56 82.0
552.00 6.04| 89.0
643. 50 6.52 96.0
742.00 7.01 103.0
832.50 7.42109.0
944.00 7.90 116. 0
8. 38 123. 01, 079. 50
8. 86|130. 01, 206. 00
9. 34|137. 01, 339. 50
7.83115. 0
8. 31 122. 01, 062. 50
8.79|129. 0|1, 188. 00|
9. 28 136. 01, 320. 50
862.50 7.55
976,00 8.03
847.50 7.49 110.0
960.00 7.97 117. 0
8. 45/124. 01, 096. 50
8. 93 131. 01, 224. 00
9. 41|138. 01, 358. 50
8. 52
9.00
9.48
20 142. 01, 440. 00 9. 76 143. 01, 460. 00 9.82 144. 01, 480. 00 9. 89 145. 01, 500.00 9.96
21 149. 01, 585. 50 10. 24 150. 01, 606. 50 10. 31 151. 01, 627. 50 10. 37 152. 01, 648. 50 10. 44
22 156. 01, 738. 00|10. 72|157. 01, 760. 00|10. 79|158. 0|1, 782. 00 10. 86 159. 01, 804. 00 10.92
23 163. 01, 897. 50 11. 20 164. 01, 920. 50 11. 27 165. 01, 943. 50 11. 34 166. 01, 966. 50 11. 40
24 170. 02, 064. 00 11. 68 171. 02, 088. 00|11. 75|172. 0|2, 112. 00 11. 82173. 02, 136. 00 11. 88
25 177.02, 237. 50 12. 16 178. 02, 262. 50 12. 23 179. 02, 287. 50 12. 30 180. 02, 312. 50 12. 37
26 184. 02, 418. 00 12. 64 185. 02, 444. 00 12. 71 186. 02, 470.00 12. 78 187. 02, 496.00 12. 85
27 191.02, 605. 50|13. 12192. 02, 632. 50 13. 19193. 02, 659. 50|13. 26|194. 02, 686. 50 13. 33
28 198. 02, 800. 00 13. 60 199. 02, 828. 00 13. 67 200. 02, 856. 00 13. 74 201. 02, 884. 00 13. 81
29 205. 03, 001. 50 14. 08/206. 03, 030. 50 14. 15207. 03, 059. 50|14. 22|208. 03, 088. 50 14. 29
30 212. 03, 210. 00 14. 56 213. 03, 240. 00|14. 63|214. 03, 270. 00|14. 70|215. 03, 300. 00 14.77
31 219. 03, 425. 50 15. 05 220. 03, 456. 50 15. 11221. 03, 487. 50|15. 18 222. 03, 518, 50 15. 25
32 226. 03, 648. 00 15. 53 227. 03, 680. 00 15. 60 228. 03, 712. 00 15. 66 229. 03, 744. 00 15. 73
33 233. 03, 877. 50 16. 01 234. 03, 910. 50 16. 08 235. 03, 943. 50 16. 15 236. 03, 976. 50 16. 21
34 240. 04, 114. 00 16. 49 241. 04, 148. 00 16. 56 242. 04, 182. 00 16. 63|243. 0|4, 216. 00₤16. 70
35 247.04, 357. 50 16. 97 248. 04, 392. 50 17.04 249. 04, 427. 50 17. 11/250. 04, 462. 50 17. 18
36 254. 04, 608. 00 17. 45 255. 04, 644. 00 17. 52256. 0 4, 680. 00 17. 59 257. 04, 716. 00 17. 66
37261. 04, 865. 50|17. 93₤262. 04, 902. 50|18. 00 263. 0 4, 939. 50 18. 07|264. 04, 976. 50|18. 14
38 268. 05, 130.00 18. 41 269. 05, 168. 00 18. 48 270. 05, 206. 00|18. 55|271. 0|5, 244. 00|18. 62
39 275. 05, 401. 50/18. 89/276. 05, 440. 50 18. 96 277. 05, 479. 50|19. 03/278. 0|5, 518. 50 19. 10
40 282, 05, 680. 00 19. 37 283. 05, 720. 00 19. 44 284. 05, 760. 00 19. 51 285. 05, 800. 00 19. 58
41 289. 05, 965. 50 19. 85 290. 06, 006. 50 19. 92 291. 06, 047. 50 19. 99 292. 06, 088. 50 20.06
42 296. 06, 258. 00 20. 33 297. 06, 300. 00 20. 40 298. 06, 342. 00 20. 47 299. 06, 384.00 20. 54
43 303. 06, 557. 50|20. 81304. 06, 600. 50 20. 88305. 06, 643. 50 20. 95|306. 06, 686. 50/21. 02
44 310. 06, 864. 00 21. 30 311. 06, 908. 00 21. 37312. 06, 952. 00 21. 44313. 06, 996. 00 21. 50
45 317. 07, 177. 50 21. 78318. 07, 222. 50 21. 85 319. 07, 267. 50 21. 92 320. 07, 312. 50 21.99
46 324. 07, 498. 00 22. 26 325. 07, 544. 00 22. 33 326. 07. 590.00 22. 40 327. 07, 636. 00 22. 47
47 331. 0,7, 825. 50 22. 74 332. 07, 872. 50 22. 81 333. 07, 919. 50 22. 88 334. 07, 966. 50 22.95
48 338. 08, 160.00 23. 22 339. 08, 208. 00 23. 29/340. 08, 256. 00 23. 36 341. 08, 304.00 23. 43
49 345. 08, 501. 50|23. 70|346. 08, 550. 50 23. 77347. 08, 599. 50 23. 84348. 08, 648. 50 23.91
>
50 352.08, 850.00 24. 18353. 08, 900.00 24. 25354. 08, 950.00 24. 32355. 09, 000.00 24. 39
232
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
Τ
Α
↑
T
A
Τ
A
T
A
T
11 83.0
12 90.0
13 97.0
14 104.0
489.50 5. 69
576.00 6. 17
669.50 6.65 98.0
770.00 7.13 105.0
84.0
91.0
500.50 5.75 85.0
588.00 6. 23 92.0
682.50 6.71| 99.0
784.00| 7. 20|106. 0
511.50 5.81 86.0
600.00 6. 29| 93.0)
695.50 6.78100.0
798.00 7.26|107.0|
522.50 5.87
612.00 6.35
708. 50 6.84
812.00 7.32
877.50 7.62 112. 0
992.00
15 111.0
16 118. 0
17 125. 01, 113. 50
18 132. 01, 242.00
19 139. 01, 377. 50
892.50 7.68113.0
8.10 119. 01, 008. 00
8. 58 126. 01, 130. 50
9.06133. 01, 260. 00
9. 54140.01, 396. 50
907.50 7.74114.0
8. 16 120. 01, 024.00
8. 65 127. 01, 147. 50
9. 13 134. 01, 278. 00
9.61 141. 01, 415. 50
922.50 7.80
8. 29
8.77
9.25
9. 74
8. 23 121. 01, 040. 00
8. 71 128. 01, 164. 50
9. 19135. 01, 296. 00
9. 67142. 01, 434. 50
20 146. 01, 520. 00|10. 03 147. 01, 540. 00|10. 09148. 01, 560. 00|10. 16|149. 0|1, 580. 00|10. 22
21 153. 01, 669. 50 10. 51 154. 01, 690. 50 10. 57155. 01. 711. 50 10. 64 156. 01, 732. 50|10. 70
22 160. 01, 826. 00 10. 99 161. 01, 848. 00 11. 06162. 01, 870. 00 11. 12163. 01, 892. 00 11. 18
23 167. 01, 989. 50 11. 47 168. 02, 012. 50 11. 54169. 02, 035. 50 11. 60 170. 02, 058. 50 11.67
24 174. 02, 160.00 11. 95 175. 02, 184. 00 12. 02176. 02, 208. 00 12. 08177. 02, 232. 00 12. 15
25 181. 02, 337. 50 12. 43 182. 02, 362. 50 12. 50 183. 02, 387. 50 12. 57 184. 02, 412. 50 12. 63
26 188. 02, 522. 00 12. 91 189. 02, 548. 00 12. 98 190. 02, 574, 00 13. 05 191. 02, 600. 00 13. 11
27195. 02, 713. 50 13. 40|196. 02, 740. 50|13. 46197. 0|2, 767. 50|13. 53|198. 02, 794. 50|13. 59
28 202. 02, 912, 00 13. 88203. 02, 940. 00 13. 94 204. 02, 968. 00 14. 01205. 02, 996. 00/14. 08
29 209. 03, 117, 50|14. 36|210. 03, 146. 50 14. 43211.03, 175. 50 14. 49 212. 03, 204. 50 14. 56
30 216. 03, 330. 00 14. 84 217. 0|3, 360. 00|14. 91|218. 0|3, 390. 00|14. 97|219. 03, 420. 00 15. 04
31 223. 03, 549. 50 15. 32 224. 03, 580. 50 15. 39 225. 03, 611. 50 15. 45 226. 03, 642. 50 15. 52
32 230. 03, 776. 00 15. 80 231. 03, 808. 00 15. 87 232. 03, 840. 00 15. 94 233. 03, 872. 0016. 00
33 237. 04, 009. 50|16. 28|238. 0|4, 042. 50|16. 35|239. 04, 075. 50|16. 42|240. 04, 108. 50|16. 48
34 244. 04, 250.00 16. 76 245. 04, 284. 00₤16. 83246. 0|4, 318. 00|16. 90/247. 04, 352. 00 16. 97
35 251. 04, 497. 50 17. 24 252. 04, 532. 50 17. 31 253. 0 4, 567. 50 17. 38 254. 04, 602. 50 17. 45
38 258. 04, 752. 0017. 73259. 04, 788. 00|17. 79|260. 0|4, 824. 00|17. 86/261. 0|4, 860. 00|17.93
37 265. 05, 013. 50 18. 21 266. 0|5, 050. 50|18. 27|267. 0|5, 087. 50|18. 34|268. 05, 124. 50 18. 41
38 272. 05, 282.00 18. 69 273. 05, 320. 00 18. 76 274. 05, 358. 00 18. 82 275. 05, 396. 00 18. 89
39 279. 05, 557. 50 19. 17280. 05, 596. 50 19. 24 281. 05, 635. 50 19. 30 282. 05, 674. 50 19. 37
40 286. 05, 840. 00 19. 65287. 05, 880.00 19. 72288. 05, 920. 00 19. 79 289. 05, 960.00 19. 85
41 293.06, 129. 50 20. 13 294. 06, 170. 5020. 20 295. 06, 211. 50 20. 27 296. 06, 252. 50 20. 33
42 300. 06, 426. 00|20. 61|301. 0【6, 468. 00|20. 68|302. 0|6, 510.00 20. 75 303. 0|6, 552. 00|20. 82
43 307. 06, 729. 50 21. 09308. 06, 772. 50|21. 16309. 06, 815. 50|21. 23₤310. 0|6, 858. 50|21. 30
44 314. 07, 040. 00 21. 57 315. 07, 084. 00 21. 64 316. 07, 128. 00 21. 71 317. 0|7, 172. 00|21, 78
45 321. 07, 357. 50 22. 05 322. 07, 402. 50 22. 12323. 07, 447. 50 22. 19324. 07, 492. 50 22. 26
46 328. 07, 682. 00 22. 54 329. 07, 728. 00 22. 60330. 07, 774. 00 22. 67 331. 07, 820. 00 22. 74
47 335. 08, 013. 50 23. 02|336. 08, 060. 50|23. 09|337. 0|8, 107. 50]23. 15|338. 08, 154, 50 23. 22
48 342. 08, 352.00 23. 50 343. 08, 400. 0023. 57 344. 08, 448. 00 23. 63 345. 08, 496. 00 23. 70
49 349. 08, 697. 50|23. 98|350, 0|8, 746. 50|24. 05|351. 0(8, 795. 50|24. 12|352. 0|8, 844. 50 24. 18
50 356. 09, 050. 00 24. 46 357. 09, 100. 00 24. 53358. 09, 150. 00 24. 60 359. 09, 200. 00 24. 66
HYDRAULIC TABLES
233
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
T
T
A
T T
A
↑ T
A
T
12
533.50 5.92 89.0
624.00 6.41 96.0
721.50 6.89 103. 0
826.00 7.38|110. 0
826.00 7.38 110.0
555.50 6.03 91.0
648.00 6.52 98.0
747.50 7.01 105. 0
854.00 7.50 112. 0
854.00 7.50 112.0
599.50 6.24
696.00 6.73
11 87.0
94.0
13 101.0
14 108.0
15115. 0 937.50
16 122. 01, 056. 00
17 129. 01, 181. 50
18 136. 01, 314. 00
19 143. 01, 453. 50
967.50
7.86 117.0
8.35 124. 01, 088. 00
8.83 131. 01, 215. 50
9. 32 138. 01, 350. 00
9.80 145. 01, 491. 50
577.50 6. 14 93, 0
672.00 6.63 100. 0]
773.50 7.12 107.0
882.00 7.61|114.0
997.50
7.98 119.0
8.47 126. 01, 120. 00
8.95 133. 01, 249. 50
9. 44140. 01, 386. 00
9. 92 147. 01, 529. 50
799. 50| 7.23
910.00 7.72
8.21
8. 70
8.70
9. 18
9.67
8.10|121. 01, 027. 50|
8. 58 128. 01, 152.00
8.58
9.07 135. 01, 283. 50
9. 56 142. 01, 422. 00
10. 04 149. 01, 567. 50 10. 16
20 150. 01, 600.00 10. 28 152. 01, 640. 00 10. 41154. 01, 680.00 10. 53 156. 01, 720. 00 10. 64
21 157. 01, 753. 50 10. 77 159. 01, 795. 50 10. 89 161. 01, 837. 50 11. 01 163. 01, 879. 50|11. 13
22 164. 01, 914. 00 11. 25 166. 01, 958. 00 11. 37 168. 02, 002.00 11. 50 170. 02, 046.00 11. 61
23 171. 02, 081. 50 11. 73 173. 02, 127. 50 11. 86 175. 02, 173. 50 11. 98 177.02, 219. 50 12. 10
24 178. 02, 256. 00 12. 21 180.02, 304. 00 12. 34 182. 02, 352.00 12. 46 184. 02, 400.00 12. 58
25 185. 02, 437. 50 12..70 187.02, 487. 50 12. 82 189. 02, 537. 50 12. 95 191. 02, 587. 50 13. 07
26 192. 02, 626. 00 13. 18194. 02, 678. 00 13. 30 196. 02, 730. 00 13. 43 198. 02, 782. 00|13. 55
27 |199. 02, 821. 50 13. 66|201. 02, 875. 50|13. 79|203. 0|2, 929. 50 13. 91 205. 02, 983. 50 14. 04
28 206. 03, 024. 00 14. 14 208. 03, 080. 00 14. 27 210. 03, 136. 00 14. 40 212. 03, 192. 00 14. 52
29 213.03, 233. 50 14. 62 215. 03, 291. 50 14. 75217. 03, 349. 50 14. 88|219. 03, 407. 50 15.00
30 220. 03, 450. 00|15. 10|222. 0|3, 510. 00|15. 23|224. 0|3, 570. 00|15. 36|226. 0|3, 630. 00|15. 49
31 227. 03, 673. 50 15. 59 229. 03, 735. 50 15. 72 231. 03, 797. 50 15. 84 233. 03. 859. 50 15.97
32|234. 03, 904. 00|16. 07|236. 0|3, 968. 00|16. 20|238. 0|4, 032. 00₤16. 33[240. 0/4, 096. 00 16. 45
33 241.04, 141. 50 16. 55243.04, 207. 50 16. 68 245. 04, 273. 50 16. 81 247.04, 339. 50 16. 94
34 248. 04, 386. 00 17.03 250.04, 454. 00 17. 16 252. 04, 522. 00 17. 29 254. 04, 590.00 17. 42
35 255. 04, 637. 50 17. 51 257. 0 4, 707. 50 17. 64 259. 04, 777. 50 17. 77 261. 04, 847. 50 17.90
36 262. 04, 896. 00 17. 99 264. 04, 968. 00 18. 13 266. 05, 040. 00 18. 26|268. 05, 112. 00 18. 38
37 269. 05, 161. 50 18. 48 271. 05, 235. 50 18. 61 273. 05, 309. 50 18. 74 275. 05, 383. 50 18. 87
38 276.05, 434. 00 18. 96 278. 05, 510. 00 19. 09/280. 05, 586.00 19. 22 282. 05, 662.00 19. 35
39 283. 05, 713. 50 19. 44 285. 05, 791. 50 19. 57 287. 05, 869. 50 19. 70 289.05, 947. 50 19. 83
40 290.0 6,000.00 19. 92 292. 06, 080. 00 20. 05294. 06, 160.00 20. 18 296. 06, 240. 00 20. 31
41 297.06, 293. 50 20. 40 299. 06, 375. 50 20. 53 301. 06, 457.50 20. 67 303. 06, 539. 50 20. 79
42 304. 06, 594. 0020. 88 306. 06, 678. 00 21. 02|308. 06, 762. 0021. 15310. 06, 846. 00 21. 28
43 311.06, 901. 50 21. 36 313. 06, 987. 50 21. 50 315. 07, 073. 50 21. 63 317. 07, 159. 50 21.76
44 318. 07, 216.00 21. 85 320. 07, 304.00 21. 98 322. 07, 392. 00 22. 11 324. 07, 480. 00 22. 24
45 325. 07, 537. 50|22. 33327. 07, 627. 50 22. 46|329. 07, 717. 50 22. 59 331.07, 807.50 22.72
46 332. 07, 866. 00 22. 81 334. 07, 958. 00 22. 94 336. 08, 050.00 23. 07 338. 08, 142. 00 23. 20
47 339.08, 201. 50 23. 29 341.08, 295. 50 23. 42 343. 08, 389. 50 23. 56 345. 08, 483. 50 23. 69
48 346. 08, 544. 00 23. 77348. 08, 640. 00|23. 90|350. 08, 736. 00 24.04 352. 08, 832. 00 24. 17
49 353.08, 893. 50 24. 25 355. 08, 991. 50 24. 39357. 09, 089. 50 24. 52 359. 09, 187. 50 24. 65
50 360. 09, 250.00 24. 73 362. 09, 350. 00 24. 87 364. 09, 450.00 25. 00 366. 09, 550. 00 25. 13
563189°-44——16
234
HYDRAULIC TABLES
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
Τ
A
r
T
A
T
A
↑ Τ
A
T
11
643.50 6.43 99.0
744.00 6.93|106.0
851.50 7.43 113. 0
966.00 7.92120.0
687.50 6.61
792.00 7.11
903.50 7.62
95.0 621.50 6.34 97.0
12 102.0 720.00 6.83|104. 0|
13 109.0 825.50 7.33 111.0
14 116.0 938.00 7.82118.0
15 123. 01, 057. 50
16 130. 01, 184.00
17 137.01, 317.50
18 144. 01, 458.00
19 151.01, 605. 50
8.31 125. 01, 087. 50
8.80 132. 01, 216. 00
9.29 139. 01, 351. 50
9.78146. 01, 494. 00
10. 27 153. 01, 643. 50
99.0
665.50 6.52 101. 0|
768.00| 7.02[108.0
877.50 7.52115. 0
994.00 8.02 122.01, 022.00 8.12
8.42 127.01, 117. 50
8. 91 134. 01, 248.00
9.40 141.01, 385. 50
9.89 148. 01, 530. 00
10. 38 155. 01, 681. 50
8. 52 129. 01, 147. 50 8.61
9.01 136. 01, 280.00 9.11
9. 51 143. 01, 419. 50 9.61
10.00 150. 01, 566.00 10. 10
10.49 157. 01, 719. 50 10. 59
20 158.0 1,760.00 10. 76 160. 01, 800.00 10. 87 162. 01, 840.00 10. 98 164. 01, 880. 00 11.08
21 165. 01, 921. 50 11. 24 167.01, 963. 50 11. 36 169. 02, 005. 50 11. 47 171.02, 047. 50 11. 58
22 172. 02, 090.00 11. 73 174. 02, 134. 00 11. 84 176. 02, 178.00 11. 96 178. 02, 222. 00 12. 07
23 179. 02, 265. 50 12. 22|181. 02, 311. 50 12. 33 183. 02, 357. 50 12. 44 185. 02, 403. 50 12. 55
24 186. 02, 448. 00 12. 70 188. 02, 496. 00 12. 82|190. 02, 544. 00/12. 93192. 02, 592. 00 13.04
25 193. 02, 637. 50 13. 19 195. 02, 687. 50 13. 30 197. 02, 737. 50 13. 42 199. 02, 787. 50 13. 53
26 200.02, 834. 00 13. 67|202. 02, 886. 00 13. 79 204. 02, 938. 00 13. 91 206. 02, 990.00 14.02
27 207. 03, 037. 50 14. 16 209. 03, 091. 50 14. 28211. 03, 145. 50 14. 39 213. 03, 199. 50 14.51
28 214. 03, 248. 00 14. 64 216. 03, 304. 00 14. 76 218. 03, 360. 00 14. 88 220. 03, 416. 00 14.99
29 221.03, 465. 50 15. 13 223. 03, 523. 5015. 25 225. 03, 581. 50 15. 36 227. 03, 639. 50 15. 48
30 228.03, 690. 00|15. 61|230. 03, 750. 0015. 73|232. 03, 810. 00|15. 85|234. 03, 870. 00|15. 97
31 235. 03, 921. 50 16. 09 237.03, 983. 50 16. 21 239. 04, 045. 50 16. 33 241. 04, 107. 50 16.45
32 242. 04, 160, 00 16. 58 244. 04, 224. 00 16. 70 246. 04, 288. 00 16. 82 248. 04, 352. 00 16. 94
33 249.04, 405. 50 17. 06 251. 04, 471. 50 17. 18 253. 0 4, 537. 50 17.30 255. 04, 603. 50 17. 42
34 256.04, 658. 00 17. 54 258. 04, 726. 00|17. 67|260. 04, 794. 00 17. 79 262. 04, 862.00 17. 91
35 263.04, 917. 50 18.03 265. 04, 987. 50 18. 15 267.05, 057. 50 18. 27 269. 05, 127. 50 18. 39
36 270. 05, 184. 0018. 51 272. 05, 256. 00 18. 63 274. 05, 328. 0018. 76|276. 05, 400.00 18.88
37 277.05, 457. 50 18. 99 279.05, 531. 5019. 12 281.05, 605. 50 19. 24 283. 05, 679. 50 19. 36
38 284. 05, 738. 00|19. 47|286. 0|5, 814. 00|19. 60₤288. 05, 890. 00 19. 72 290. 05, 966. 00 19.84
39 291. 06, 025. 50 19.96 293. 06, 103. 50 20. 08/295. 06, 181. 50 20. 21 297. 06, 259. 50 20. 33
40 298. 06, 320. 00 20. 44 300. 06, 400. 00 20. 57 302. 06, 480. 00|20. 69/304. 06, 560. 00|20. 81
41 305. 06, 621. 50 20. 92 307. 06, 703. 50 21. 05309. 06, 785. 50 21. 17 311. 06, 867. 50|21. 30
42 312. 06, 930. 00 21. 40|314. 07, 014. 00 21. 53316. 07, 098. 00 21.66 318. 07, 182. 0021, 78
43 319. 07, 245. 50|21. 89|321. 07, 331. 50|22. 01|323. 07, 417. 50|22. 14|325. 07, 503. 50|22. 26
44 326. 07, 568. 00/22. 37|328. 07, 656. 00 22. 50330. 07, 744. 00/22. 62/332. 07, 832. 0022, 75
45 333. 07, 897. 50 22. 85 335. 07, 987. 50 22. 98 337. 08, 077. 50 23. 10339. 08, 167. 50 23. 23
46 340.08, 234. 00 23. 33 342. 08, 326.00 23. 46 344. 08, 418. 00 23. 59 346. 08, 510.00 23. 71
47 347.08, 577. 50 23. 82 349. 08, 671. 50 23. 94 351. 08, 765. 50 24. 07353. 08, 859. 50 24. 20
48 354.08, 928. 00 24. 30356. 09, 024. 0024. 43358.09, 120. 0024. 55360. 09, 216.00 24.68
49 361.09, 285, 50|24. 78|363. 09, 383. 50|24. 91|365, 0|9, 481. 50|25. 04|367. 0|9, 579. 50 25. 16
50 368. 09, 650, 00 25, 26 370. 09, 750. 0025. 39₤372. 0|9, 850. 00₤25. 52|374. 09, 950. 00/25, 64
00125
00 25, 26/370.09,
00:25. 52374.
00 25.
HYDRAULIC TABLES
235
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Depth
Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
T
A
Т
T
A
T
A
T T
A
T
731.50 6.77|107. 0
7.20 112. 0| 840.00 7.28|114. 0|
7.70 119.0 955.50 7.79 121. 0
8. 21|126. 01, 078. 00 8.30 128. 0
864.00
981. 50
1, 106. 00
753.50 6.84 109.0
7.36 116. 0 888.00 7.44
7.87 123. 01, 007. 50 7.96
8.38 130. 0
775.50 6.92
1, 134. 00
8.47
8. 80 135. 0
9. 30142. 0
9.80 149. 0
10. 30 156. 0
10. 80 163. 0
1, 237. 50
1, 376. 00
1, 521. 50
1, 674. 00
8.89 137. 0
9. 39144. 0
9. 90 151.0
10. 39 158. 0
1,833. 50 10.89 165.0
1, 267.50
1, 408. 00 9.48
1, 555. 50 9.99
1, 710. 00 10. 49
1, 871. 50|10. 99
8.98
11 103.0 709.50 6.69105. 0
12 110.0 816.00
13 117.0 929.50
14 124. 01, 050.00
15 131.01, 177. 50 8.71 133. 01, 207. 50
16 138. 01, 312. 00 9.21 140. 01, 344. 00]
17145. 01, 453. 50 9.71 147. 01, 487. 50
18152. 01, 602. 00 10. 20 154. 01, 638. 00
19 159.01, 757. 50 10. 70 161. 01, 795. 50
20 166.0 1,920. 00 11. 19 168. 01, 960. 00 11. 29 170. 02, 000. 0011. 39 172. 0
21 173. 02, 089. 50 11. 68 175. 02, 131. 50 11. 78177.0
22 180. 02, 266. 00 12. 17 182. 02, 310.00 12. 28 184. 0
23 187.02, 449. 50 12. 66 189. 02, 495. 50 12. 77 191.0
24 194. 02, 640. 00 13. 15 196.02, 688.00 13. 26 198. 0
2, 173. 50 11.88 179. 0
2, 354. 00 12. 38 186. 0
2, 541. 50 12. 87 193. 0
2, 736. 00 13. 36 200.0
2,040. 00 11.49
2, 215. 50 11.98
2, 398. 00 12.48
2, 587. 50 12.97
2,784.00 13. 47
25 201. 02, 837. 50 13. 64 203. 02, 887. 50 13. 75 205. 0
26 208. 03, 042. 00 14. 13210. 03, 094. 00 14. 24 212. 0
27 215.03, 253. 50 14. 62 217. 03, 307. 50 14. 73219. 0
28 222. 03, 472. 00 15. 11 224. 03, 528. 00 15. 22 226. 0
29 229. 03, 697. 50 15. 59 231. 03, 755. 50 15. 71 233. 0
30 236.03, 930.00 16. 08238. 03, 990.00 16. 19|240.0
31 243. 04, 169. 50 16. 57 245. 04, 231. 50 16. 68 247.0
32 250.04, 416. 00 17. 05 252. 04, 480. 00 17. 17254. 0
33 257.04, 669. 50 17. 54 259. 04, 735. 50 17. 65 261.0
34 264. 04, 930.00 18. 02 266. 04, 998. 00 18. 14 268. 05, 066. 00 18. 25 270.0
2,937. 50 13. 86 207.02, 987. 50 13.96
3, 146. 00 14. 35 214.03, 198. 00 14. 45
3, 361. 50 14. 84 221. 0 3, 415. 50 14. 94
3, 584. 00 15. 33 228. 0 3, 640. 00 15. 43
3, 813. 50 15.82 235. 0 3, 871. 50 15. 92
4,050.00 16. 30 242. 0
4, 293. 50 16. 79 249. 0
4, 544. 00 17. 28 256. 0
4, 801. 50 17. 77 263.0
35 271. 05, 197. 50 18. 51 273. 05, 267. 50 18. 63 275.0
36 278. 05, 472. 00 18. 99 280. 05, 544. 00 19. 11 282. 0
37 285.05, 753. 50 19. 48 287. 05, 827. 50 19. 60 289.0
38 292. 06, 042.00 19. 96 294. 06, 118. 00 20. 08 296. 0
39 299. 06, 337. 50 20. 45 301. 06, 415. 50 20. 57 303.0
40 306. 06, 640. 00 20. 93 308. 06, 720. 00 21. 05310.0
41 313. 06, 949. 50 21. 42315. 07, 031. 50 21. 54317.0
42 320. 07, 266. 00 21. 90 322. 07, 350. 00 22. 02 324. 0
43 327. 07, 589. 50 22. 38329. 07, 675. 50 22. 51331.0
44 334. 07, 920.00 22. 87 336. 08, 008. 00 22. 99 338.0
45 341. 08, 257. 50 23. 35 343. 08, 347. 50 23. 47 345. 0
46 348. 08, 602. 00 23. 84 350. 08, 694. 00 23. 96 352.0
47 355. 08, 953. 50 24. 32357. 09, 047. 50 24. 44 359.0
48 362. 09, 312. 00 24. 80 364. 09, 408. 00 24. 93 366. 0
49 369. 09, 677. 50 25. 29 371. 09, 775. 50 25. 41 373.0
5, 337. 50 18. 74 277.0
5, 616. 00 19. 23 284. 0
5, 901. 50 19. 71 291.0
6, 194.00 20. 20 298. 0
6, 493. 50 20. 68|305. 0||
6, 800. 00 21. 17 312. 0
7, 113. 50 21. 66 319.0
7, 434. 00 22. 14326. 0
7, 761. 50 22. 63 333.0
8,096. 00 23. 11 340.0
8, 437. 50 23. 59 347.0
8, 786. 00 24. 08 354.0
9, 141. 50 24. 56 361.0
9, 504. 00 25. 05 368. 0
9, 873. 50 25. 53 375. 0
013324, 110.00 16.41
4, 355. 50 16.90
4, 608. 00 17.39
4, 867.50 17.88
5, 134. 00 18.37
5, 407. 50 18. 85
5,688.00 19.34
5, 975. 50 19. 83
6, 270.00 20. 31
6, 571. 50 20. 80
6, 880.00 21. 29
7, 195. 50 21. 77
7, 518. 00 22. 26
7, 847. 50 22. 74
8, 184.00 23. 23
8, 527. 50 23. 71
8, 878.00 24. 20
9, 235. 50 24.68
9, 600. 00 25. 17
9, 971. 50|25. 65
378.0 10,150.00 25.89 380.010, 250.00 26. 01 382. 50 376. 0 10,050.00 25. 77 .
77378.
010, 350.00 26. 14
236
HYDRAULIC TABLES
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-Continued

Depth
A
Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
T
T
A
Ф
T
A
T
T
A
T
863. 50
984.00
7.19 122. 0
7.73129. 0
1,044. 00|
8.26136.0
8. 78|143. 0
1, 176. 50
1,316.00
918.50 7.34127.0
7.89|134. 0|
8. 43 141. 0
8.96 148. 0
973.50 7.48
1, 104. 00| 8.04
1, 241. 50 8. 58
1,386.00 9.12
11 112.0 808.50
12 119.0 924.00
13 126. 01, 046. 50
14 133. 01, 176.00
7.03 117.0
7.55 124. 0
8.07 131. 01, 111. 50
8.59 138. 01, 246. 00
1, 462. 50 9.48 155. 0
1, 616. 0010. 01|162. 0
1, 776. 50 10. 53 169. 0
1,944. 00 11.04|176. 0|
2, 118. 50 11. 56 183. 0
2,300.00 12. 07 190. 0
2, 488. 50 12. 58 197. 0
2, 684. 00 13. 08/204. 0
3,096. 00 14. 09 218. 0
3, 312. 50 14. 59 225. 0
3, 536. 00|15. 09|232. 0
3, 766. 50|15, 59|239. 0
4, 004. 00|16. 09|246. 0
4, 248. 50 16. 59|253. 0
15 140.01, 312. 50| 9. 10|145. 01, 387. 50 9.30 150. 0
16 147. 01, 456. 00 9. 61 152. 01, 536. 00 9.82157.0
17 154. 01, 606. 50 10. 12|159. 01, 691. 5010. 33|164. 0
18 161.01, 764. 00|10. 62|166. 01, 854. 00|10. 84 171. 0
19 168. 01, 928. 50|11. 13 173. 02, 023. 50|11. 35178. 0
20 175. 02, 100. 00|11. 63|180. 02, 200. 00|11.85 185. 0
21 182. 02, 278. 50|12. 13|187. 0|2, 383. 50|12. 36₤192. 0|
22 189.02, 464. 00 12. 63 194. 02, 574. 00 12. 86 199. 0
23 196. 02, 656. 50 13. 12 201. 02, 771. 50 13. 36206. 02, 886. 50 13. 59 211.0
24 203. 02, 856. 00 13. 62 208. 02, 976. 00 13.86|213.0
25210. 03, 062. 50 14. 11 215. 03, 187. 50 14. 36 220. 0
26 217.03, 276. 00 14. 61|222. 03, 406. 00|14. 86 227. 0
27 224.03, 496. 50 15. 10 229. 03, 631. 50|15. 35|234. 0
28 231.03, 724. 00 15. 59 236. 03, 864. 00 15. 85241. 0
29 238.03, 958. 50|16. 08|243. 0 4, 103. 50 16. 34|248. 0
30 245. 04, 200.00 16. 57 250. 04, 350.00 16. 83 255. 0 4, 500. 0017. 08260. 0
31 252. 04, 448. 50 17. 06 257. 04, 603. 50 17. 33 262. 0 4, 758. 50 17. 58 267. 0
32 259. 04, 704. 00 17. 55 264. 04, 864. 00 17.82 269. 05, 024. 0018. 07274. 0
33 266.04, 966. 50 18. 04 271. 05, 131. 50 18. 31|276. 0❘ 5, 296. 50 18. 57 281. 0
34 273. 05, 236. 00|18. 53|278. 05, 406. 00|18. 80|283. 0|| 5, 576. 00 19. 06/288. 0
35 280.05, 512. 50 19. 02 285. 05, 687. 50|19. 29₤290. 0
36 287.05, 796. 00 19. 51 292. 05, 976. 00 19. 78297. 0
37 294. 06, 086. 50 20. 00 299. 06, 271. 50 20. 27 304. 0
38 301. 06, 384. 00 20. 48 306. 06, 574. 0020. 76311. 0
39 308.06, 688. 50 20. 97 313. 06, 883. 50 21. 25318. 0
40 315. 07, 000. 00 21. 46 320. 07, 200. 00₤21. 74325. 0
41 322. 07, 318. 50 21. 95 327. 07, 523, 5022. 23|332. 0
42 329. 07, 644. 00|22. 43|334. 07, 854. 00 22. 71 339.0
43 336. 07, 976. 50|22. 92|341. 08, 191. 50 23. 20|346. 0|
44 343. 08, 316. 00 23. 40|348. 08, 536. 00 23. 69|353. 0
5,862. 50|19. 55|295. 0
6, 156.00 20. 05 302. 0
6, 456. 50 20. 54 309. 0
6, 764. 00 21. 03 316. 0
7,078. 50 21. 52|323. 0
7, 400. 00|22. 01|330.0
7, 728. 50|22. 50|337.0
8,064, 00 22. 99|344. 0
8, 406. 50 23. 48 351. 0
8, 756. 00 23. 97 358. 0
9, 112. 50 24. 46 365. 0
1, 537.50 9.66
1,696.00 10. 19
1, 861. 50 10. 71
2, 034. 00|11. 23
2, 213. 50 11.75
2, 400.00 12. 27
2, 593. 50 12.78
2, 794. 00 13. 29
3, 001, 5013. 80
3, 216. 00 14. 31
3, 437.50 14.82
3, 666. 00|15. 32
3,901. 50|15. 82
4, 144. 0016. 33
4, 393. 50 16. 83
4, 650.00 17.32
4, 913. 50 17.82
5, 184.00 18. 32
5, 461. 50 18. 82
5, 746.00 19. 31
6, 037. 50 19. 81
6, 336. 00 20. 20
6, 641, 50 20. 80
6, 954. 00 21, 29
7, 273. 50 21. 78
7,600.00 22. 27
7, 933. 50 22. 77
8, 274. 00 23. 26
8, 621. 50 23. 75
8, 976. 00 24. 24
45 350. 08, 662. 50 23. 89 355. 08, 887. 50 24. 18|360. 0
9, 337.50 24, 73
46 357. 09, 016. 00 24. 38 362. 09, 246. 00 24. 66 367.0 9, 476. 00 24. 94372. 0 9, 706. 00 25. 22
47 364. 09, 376. 50 24. 86 369. 09, 611. 50 25. 15|374. 0 9, 846. 50|25. 43|379. 010, 081. 50|25. 71
48 371. 09, 744. 00 25. 35 376. 09, 984. 00 25. 64381. 010, 224. 00 25. 92 386. 0 10,464.00 26. 20
49 378. 0 10,118.50 25. 83 383. 0|10,363.50|26. 12 388. 0 10, 608. 50 26. 41|393. 010, 853. 50 26. 69
50 385.0 10,500.00 26. 32390. 0 0|10,7
10,750.00 26. 61 395. 0|11, 000. 00 26. 89 400.0|11, 250. 00 27. 17
HYDRAULIC TABLES
237
Table 13.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1-
Depth
Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
T
A
T
Α
T T
A
7.95 157.0
8.54 164. 0
9. 12171.0
9. 69 178. 0
1, 303. 50
1, 464. 00
1, 631. 50
1, 806. 00
8. 14 167.0
8.75 174. 0
9. 34 181.0
9. 93 188. 0
T
A
11 137. 01, 083. 50
12 144. 01, 224. 00
13 151.01, 371. 50
14 158. 01, 526. 00
7.73 147. 01, 193. 50
8. 31 154. 01, 344. 00
8. 87 161. 01, 501. 50
9.42 168. 01, 666. 00
15 165. 01, 687.50 9.97 175. 01, 837. 50 10. 25 185. 0
16 172. 01, 856. 00 10. 52 182. 02, 016. 00 10. 81 192.0
17 179. 02, 031. 50 11. 06 189. 02, 201. 50 11. 36 199. 0
18 186. 02, 214. 00 11. 59 196. 02, 394. 00 11. 91 206. 0
19 193. 02, 403. 50 12. 12 203. 02, 593. 50 12. 45 213. 0
20 200.02, 600.00 12. 65/210. 02, 800. 00 12. 99 220. 0
21 207.02, 803. 50 13. 17 217. 03, 013. 50|13. 52227. 0
22 214. 03, 014. 00 13. 69 224. 03, 234. 00 14. 05|234. 0
23 221.03, 231. 50 14. 21 231. 03, 461. 50 14. 58 241.0
24 228. 03, 456. 00 14. 72 238. 03, 696. 00 15. 10 248.0
1,987. 50 10. 50 195.0
2, 176. 0011. 07202. 0
2, 371. 50 11. 64 209. 0
2, 574. 00 12. 20 216. 0
2, 783. 50 12. 75 223. 0
3,000.00 13. 30 230. 0
3, 223. 50|13. 84|237.0
3, 454. 00 14. 38|244. 0
3, 691. 50 14. 92 251. 0
3,936. 00 15. 45 258. 0
4, 187. 50 15. 98 265. 0
4, 446. 0016. 51 272. 0
4, 711. 50 17. 04 279. 0
4, 984. 00 17. 56 286. 0
25 235. 03, 687. 50 15. 24 245. 03, 937. 50 15. 62 255. 0
26242. 03, 926. 00 15. 75 252. 04, 186. 00 16. 14 262. 0
27 249. 04, 171. 50 16. 26|259. 0|4, 441. 50|16. 66|269. 0
28 256.04, 424. 00 16. 77 266. 04, 704. 00 17. 18 276. 0
29 263.04, 683. 50 17. 27 273. 04, 973. 50 17. 69 283. 05, 263. 50 18. 08 293. 0
30 270. 04, 950.00 17.78 280. 05, 250.00 18. 20 290. 0
31277.05, 223. 50 18. 28 287. 05, 533. 50 18. 71297. 0
32 284. 05, 504. 00 18. 79 294. 05, 824. 00 19. 22 304. 0
33 291. 05, 791. 50 19. 29 301. 06, 121. 50 19. 73 311. 0
34 298. 06, 086. 00 19. 79 308. 06, 426. 00|20. 24 318. 0
35 305. 06, 387. 50 20. 29 315. 0 6, 737. 50 20.74 325. 0
36 312. 06, 696. 00 20. 79|322. 07, 056. 00 21. 25332. 0
37 319. 07, 011. 50 21. 29 329. 07, 381. 50 21. 75 339. 0
38 326. 07, 334. 00 21. 79 336. 07, 714. 00 22. 25 346. 0
39 333. 07, 663. 50 22. 28|343. 08, 053. 50 22. 75|353. 0
1
5, 550. 00 18. 60 300. 0
5,843. 50 19. 12|307.0
6, 144. 00 19. 63 314. 0
6, 451. 50 20. 15 321.0
6, 766. 00 20. 66 328. 0
7,087. 50 21. 17335. 0
7, 416. 00 21. 68 342. 0
7, 751. 50 22. 19349.0
8, 094. 00 22. 69 356. 0
8, 443. 50 23. 20|363. 0
1, 413. 50 8.31
1, 584.00 8.93
1,761. 50 9.54
1, 946.00 10. 14
2, 137.50 10. 73
2, 336.00 11. 31
2, 541. 50 11.89
2, 754.00 12. 46
2,973. 50 13. 02
3, 200.00 13. 58
3, 433. 50 14. 14
3, 674. 00 14. 69
3, 921. 50 15. 23
4, 176. 00 15. 78
4, 437. 50 16. 31
4, 706. 00 16. 85
4, 981. 50 17. 38
5, 264. 00 17. 91
5, 553. 50 18. 44
5, 850.00 18.97
6,153. 50 19. 49
6, 464. 00 20. 01
6, 781. 50 20. 53
7, 106.00 21. 05
7, 437. 50 21. 57
7, 776.00 22.09
8, 121. 50 22. 60
8, 474.00 23. 11
8,833. 50 23. 62
40 340. 08, 000, 00 22. 78₤350. 08, 400. 00 23. 26|360. 0 8, 800.00 23. 71370. 0 9, 200.00 24. 13
41 347. 08, 343. 50 23. 27 357. 08, 753. 50 23. 76 367. 0 9, 163. 50 24. 21 377. 0 9, 573. 50 24. 64
42 354. 08, 694. 00 23. 77 364. 09, 114. 00 24. 25374. 0 9, 534. 00 24. 71|384.0 9, 954. 00 25. 15
43 361. 09, 051. 50 24. 26 371. 09, 481. 50 24. 75 381.0 9, 911. 50 25. 22 391. 010, 341.50 25. 66
44368. 09, 416. 00 24. 76 378. 09, 856. 00 25. 25 388. 010, 296. 00 25. 72|398. 0|10, 736. 00 26. 16
45 375.09, 787.50 25. 25 385. 0 10,237.50 25. 75 395. 010, 687. 50 26. 22405. 0|11, 137. 50 26. 67
46 382. 0 10,166.00 25. 74|392. 0|10,626.00|26. 24|402. 0|11, 086. 00|26. 72412. 0|11, 546.00 27. 17
47 389. 0 10,551.50 26. 24 399. 0 11,021.50 26. 74409. 011, 491. 50 27. 22 419. 0 11, 961. 50 27. 68
48 396. 0 10,944.00 26. 73 406. 0 11,424.00 27. 24 416. 011, 904. 00 27. 72 426. 012, 384. 00 28. 18
49 403. 0 11,343.50 27. 22413. 0|11,833.50 27. 73 423. 012, 323. 50 28. 22 433. 012, 813. 50 28. 68
27. 71 50 410.0 11,750.00 71420.012,250
11,750.00 27 420.0 12,250.00 28. 23 430. 012, 750.00 28. 72 440.013, 250.00 29. 18
238
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
1-
side slopes 3½ to 1-Continued

Depth
Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
T
A
T T
A
T
A
T T
A
8.59 197.0
9.24 204. 0
1,853. 50 8.82
2, 064.00 9.50
2, 281. 50 10. 16
2, 506. 00 10. 81
1,743. 50 8.71 207. 0
1, 944. 00 9.37 214. 0
9.88211.02, 151. 50|10. 02/221. 0|
2, 366. 00 10. 66 228.0
11 177.01, 523. 50| 8. 46|187. 0|1, 633. 50|
12 184. 01, 704. 00 9.09 194. 01, 824. 00
13 191. 01, 891.50 9.72|201. 02, 021. 50
14 198. 02, 086. 00|10. 33/208. 02, 226. 00|10. 50 218. 0|
15 205. 02, 287. 50|10. 93|215. 0|2, 437. 50 11. 12 225.0
16 212. 02, 496. 00|11. 53 222. 02, 656. 00 11. 73|232.0
17 219. 02, 711. 50 12. 12 229. 02, 881. 50 12. 33|239. 0]
18 226. 02, 934. 00|12. 70 236. 03, 114. 00 12. 92246. 0
19 233. 03, 163. 50 13. 27|243. 03, 353. 50|13. 50 253.0
20 240.03, 400. 00 13. 84 250. 03, 600. 00 14. 08 260.0
21 247.03, 643. 50 14. 41 257. 03, 853. 50 14.66 267.0
22 254. 03, 894. 00 14. 97 264. 04, 114. 00 15. 23 274. 0
23 261. 04, 151. 50 15. 52 271. 04, 381. 50 15. 79 281. 0
24 268. 04, 416. 00 16. 07 278. 04, 656. 00 16. 35 288. 0
2,587.50 11. 29|235.0
2,816. 00 11. 91/242. 0
3, 051. 50 12. 52|249. 0❘
3, 294. 00 13. 12 256. 0
3, 543. 50 13. 72|263. 0|
3,800.00 14. 31 270.0
4,063. 50 14. 89|277.0
4, 334. 0015. 47 284. 0
4, 611. 50 16.04291. 0
4, 896. 00 16. 61 298. 0
25 275. 04, 687. 50 16. 62 285. 04, 937. 50 16. 91 295.05, 187. 50 17. 18305. 0
26 282. 04, 966. 00 17. 17 292. 05, 226. 00 17. 46 302. 0 5, 486. 00 17. 74312. 0
27 289.05, 251. 50 17. 71 299. 05, 521. 50 18.01 309.05, 791. 50 18. 29319. 0
28 296. 05, 544. 00 18. 25 306. 05, 824. 00 18. 56316.0
29 303. 05, 843. 50|18. 78|313. 06, 133. 50|19. 10|323. 0|
6, 104. 00 18. 85326. 0
6, 423. 50 19. 40|333. 0|
6, 750. 00 19. 95340. 0|
7,083. 50 20. 49 347. 0
7, 424. 00 21. 03 354. 0
7, 771. 50 21. 57 361.0
8, 126. 00 22. 11|368. 0
30 310.06, 150.00 19. 32|320. 06, 450.00 19. 64|330. 0|
31 317. 06, 463. 50 19. 85 327. 06, 773. 50 20. 18337.0
32 324. 06, 784. 00 20. 37334. 07, 104. 00 20. 71 344. 0
33 331.07, 111. 50 20. 90 341. 07, 441. 50 21. 25 351.0
34 338. 07, 446.00 21. 43|348. 07, 786. 00 21. 78358. 0
35 345. 07, 787. 50 21. 95 355. 08, 137. 50|22. 31|365. 0 8, 487.50 22. 65375.0
36 352. 08, 136. 00 22. 47 362. 08, 496. 00 22. 83 372.0 8, 856.00 23. 18382. 0
37 359. 08, 491. 50 22. 99 369. 08, 861. 50 23. 36 379. 0 9, 231. 50 23. 71 389.0
38 366. 08, 854. 00 23. 51 376. 09, 234.00 23.88 386.0 9, 614. 00 24. 24 396. 0
39 373. 09, 223. 50 24. 02 383. 09, 613. 50 24. 40 393. 010, 003. 50 24. 77 403. 0
9
2, 737. 50 11. 44
2, 976. 00 12. 07
3, 221. 50 12. 69
3, 474. 00 13. 31
3, 733. 50 13. 91
4,000.00 14. 51
4, 273. 50|15. 11
4, 554. 00 15. 69
4, 841. 50 16. 28
5, 136.00 16. 85
5, 437. 50 17. 43
5, 746. 00 18.00
6, 061. 50 18. 56
6, 384. 00 19. 12
6, 713. 50 19. 68
7, 050. 00|20. 24
7, 393. 50 20.79
7, 744. 00 21. 34
8, 101. 50[21. 88
8, 466. 00 22. 43
8, 837. 50 22. 97
9, 216.00 23. 51
9, 601. 50 24. 04
9, 994. 00 24.58
10, 393.50 25. 11
?
40 380. 09, 600. 00 24. 54390. 0 10,000.00 24. 92|400. 010, 400. 00 25. 29410. 0 10, 800.00 25. 64
41 387.09, 983. 50|25. 05|397. 0 10,393.50 25. 44 407. 0 10, 803. 50 25. 82417. 0[11, 213. 50 26. 17
42 394. 0 10,374.00 25. 57 404. 0 10,794.00 25. 96 414. 011, 214. 00 26. 34 424. 0 11, 634. 00 26. 70
43 401. 010,771.50 26. 08 411. 0 11,201.50 26. 48 421. 011, 631. 50 26. 86 431. 0 12, 061.50 27. 22
44 408. 0 11,176.00 26. 59 418. 0 11,616.00 26. 99 428.012, 056. 00 27. 38438. 0 12, 496. 00 27. 75
45 415. 011,587.50 27. 10 425. 0 12,037.50 27. 51 435. 0 12, 487. 50 27. 90 445. 012, 937. 50 28. 27
46 422.0 12,006.00 27. 61 432. 012,466.00|28. 02|442. 0|12, 926. 00|28. 42452. 0|13, 386. 00 28. 79
47429.0 12,431.50 28. 12439. 0 12,901.50 28. 53 449. 013, 371. 50 28. 93 459. 0 13, 841. 50 29. 31
48 436. 0 12,864.00|28. 62|446. 0 13,344.00 29. 04 456. 013, 824. 0029. 45 466. 0 14, 304. 00 29. 83
49 443. 0 13,303.50 29. 13 453. 0 13,793.50 29. 55 463. 014, 283. 50 29. 96 473. 014, 773. 50 30. 35
50 450. 0 13,750.00 29.63 460. 0 14,250.00 30. 06470. 014, 750.00 30. 47480. 015, 250.00 30.87
014, 0.00 30. 014, 00 30. 47/480
HYDRAULIC TABLES
239
Depth
Table 13.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued
and

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
T
A
T
T
A
T
A
↑
T
A
T
2, 183. 50 9. 09 247. 0
2, 424. 00 9.80254. 0
2, 671. 50 10. 49 261. 0
2, 926. 00 11. 17|268. 0
11 217. 01, 963. 50 8.92 227. 02, 073. 50 9.01 237.0
12 224. 02, 184.00 9. 61234. 02, 304. 00 9.71 244. 0
13 231. 02, 411. 50 10. 28 241. 02, 541. 50 10. 39 251.0
14 238. 02, 646. 00|10. 94|248. 02, 786. 00 11.06 258.0
15 245. 02, 887. 50 11. 59 255. 03, 037. 50 11. 72265. 0
16 252. 03, 136. 00|12. 23|262. 03, 296. 00 12. 37 272.0
17 259. 03, 391. 50 12. 86 269. 03, 561. 50 13. 01 279. 0
18 266. 03, 654. 00 13. 48 276. 03, 834. 0013. 64 286. 0
19 1273. 03, 923. 50 14. 10 283. 04, 113. 50 14. 27293. 0
20 280.04, 200. 00 14. 71|290. 04, 400. 00 14. 88 300. 0
21 287.04, 483. 50 15. 31 297. 04, 693. 50 15. 50 307. 0
22 294.04, 774. 00 15. 90304. 04, 994. 00 16. 10314. 0
23 301. 05, 071. 50 16. 50 311. 05, 301. 50 16. 70321.05, 531. 50 16. 89 331.0
24 308.05, 376. 00 17. 08 318. 05, 616. 00 17. 29328. 0
25 315.05, 687. 50 17. 66|325. 05, 937. 50 17. 88 335. 0
26 322. 06, 006. 00 18. 24 332. 06, 266. 00 18. 47 342. 0
27 329. 06, 331. 50 18. 81 339. 06, 601. 50 19. 05349. 0
28 336.0 6, 664. 00 19. 38 346. 06, 944. 00 19. 62 356. 0
29 343. 07, 003. 5019. 95 353. 07, 293. 50 20. 20 363. 0
30 350. 07, 350.00 20. 51 360. 07, 650.00 20. 77 370. 0
31 357.07, 703. 50 21. 07367. 08, 013. 50 21. 33 377. 0
32 364. 08, 064. 00 21. 62 374. 08, 384. 00 21.89384.0
33 371.08, 431. 50 22. 17381. 08, 761. 50 22. 45391.0
34 378.08, 806. 00 22. 72 388. 09, 146. 00 23. 01398.0
3, 187. 50 11. 84 275. 0
3, 456. 00|12. 50|282. 0|
3, 731. 50 13. 15289. 0
4, 014. 00 13. 79|296. 0
4, 303. 50|14. 43|303. 0
4, 600. 00 15. 05|310. 0
4, 903. 50 15. 67 317.0
5, 214. 0016. 29324. 0
5,856. 00 17.50 338. 0
6, 187. 50 18. 09 345. 0
6, 526. 00 18. 68 352. 0
6, 871. 50 19. 27359. 0
7, 224. 00 19. 85366. 0
7, 583. 50 20. 43 373.0
7, 950.00 21. 01 380. 0
8, 323. 50 21. 58 387. 0
8, 704. 00 22. 15|394. 0
9, 091. 50 22. 71 401. 0
9, 486. 00 23. 28 408. 0
2, 293. 50 9.17
2, 544.00 9.88
2, 801. 50 10. 59
3,066.00 11. 28
3, 337. 50 11.95
3, 616. 00|12. 62
3, 901. 50 13. 28
4, 194.00 13.93
4, 493. 50 14.57
4, 800.00 15. 21
5, 113. 50 15.84
5, 434.00 16.46
5,761. 50 17.07
6, 096. 00 17. 68
6, 437. 50 18. 29
6, 786. 00 18.89
7, 141. 50 19. 48
7, 504. 00 20. 07
7, 873. 50 20. 66
8, 250.00 21. 24
8, 633. 50 21.82
9, 024. 00|22. 39
9, 421. 50 22.97
9,826. 00 23. 53
35 385. 09, 187. 50 23. 27 395. 09, 537. 50 23. 56 405. 0 9, 887. 50 23. 84 415. 010, 237. 50 24. 10
36 392. 09, 576. 00 23. 82 402. 09, 936. 00 24. 11 412. 010, 296. 00 24. 39 422. 010, 656. 00 24. 66
37 399.09, 971. 50 24. 36 409. 0 10,341.50 24. 66 419. 010, 711. 50 24. 95 429. 011, 081. 50 25. 22
38 406. 0 10,374.00 24. 90 416. 0|10,754.00|25. 21 426. 011, 134. 00 25. 50 436. 011, 514. 00 25. 78
39 413. 010,783.50 25. 44 423. 011,173.50 25. 75 433. 011, 563. 50 26. 05443. 011, 953. 50|26. 33
40 420.0 11,200.00 25. 97 430. 0 11,600.00 26. 29 440. 012, 000. 00 26. 60 450. 012, 400.00 26.89
41 427.0 11,623.50 26. 51 437. 0 12,033.50 26. 83 447. 012, 443. 50 27. 14 457. 012, 853. 50 27. 44
42 434. 0 12,054.00 27. 04 444. 012,474.00 27. 37 454. 012, 894. 00 27. 68 464. 013, 314. 00 27.98
43 441. 0 12,491.50 27. 57 451. 0 12,921.50 27. 91 461. 013, 351. 50 28. 22 471. 013, 781. 50 28. 53
44 448. 0 12,936.00 28. 10458. 0 13,376.00 28. 44 468. 013, 816. 00 28. 76 478. 014, 256. 00 29. 07
45 455. 0 13,387.50 28. 63|465. 013,837.50 28. 97 475. 014, 287. 50 29. 30 485. 014, 737. 50 29. 62
46 462. 0 13,846.00 29. 16 472. 0 14,306.00 29. 50 482. 014, 766. 00 29. 84 492. 015, 226. 00 30. 16
47 469. 0 14,311.50 29. 68|479. 0 14,781.50 30. 03 489. 015, 251. 50 30. 37 499. 015, 721. 50 30. 70
48 476. 0 14,784.00 30. 21 486. 0 15,264.00 30. 56496. 015, 744. 00 30. 90506. 0 16, 224. 00 31. 23
49 483. 0 15,263.50 30. 73 493. 015,753.50 31. 09503. 016, 243. 50 31. 44,513. 016, 733. 5031.77
50 490.015,750.00 31. 25 500. 0 16,250.00 31. 61 510. 016, 750.00 31.97 520. 017, 250.00 32. 30
61/510. 00:31.
240
HYDRAULIC TABLES
Table 13.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 3½ to 1—Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
T
T
A
↑
T
A
།
↑
11
13
18
19
21
23
26
IRRI BU**2 222** KERK2 8788*
257.02, 403. 50
9.24
267.0 2,513. 50
9.31
12 264.0 2,664.00
9.96
274.0 2,784.00
10.04
277.0 2,623. 50|
284.0||2, 904.00|
9.37
10. 11
271.0 2,931.50
10.67
281.0 3,061. 50
10.76
291.03, 191. 50
10.83
14 278.0 3, 206.00
11.37
288.0 3, 346. 00
11.46
298.0 3, 486.00
11. 55
15 285.0 3, 487. 50
12.06
295.0 3,637. 50
12. 16
305.0 3,787.50
12.25
16 292.0 3,776.00
299.0 4,071.50
17
12.74
302.03, 936.00
12.84
312.0 4,096. 00
12.94
13.40
309. 0 4, 241.50
13.52
319.04, 411.50
13.63
306. 0 4, 374.00
14.06
316. 0 4, 554. 00
14. 19
326.04, 734.00
14.30
313.04, 683. 50
14.71
323.0 4,873. 50
14.84
333.0 5,063. 50
14.97
20 320.0 5,000.00
15.36
330.0 5,200.00
15.49
340.0 5, 400. 00
15.62
327.0 5,323. 50
15.99
337.05, 533. 50
16. 14
347.0 5,743. 50
16. 28
334.0 5, 654. 00
16. 62
344.0 5,874.00
16.78
354.0 6,094.00
16.92
341.0 5,991. 50
17.24
351.0 6, 221.50
17.41
361.0 6, 451.50
17.56
24
348.0 6, 336.00)
17.86
358.0 6, 576.00
18.03
368.0 6,816. 00
18. 19
25
355.0 6, 687.50
18. 47
365.0 6, 937. 50
18. 65
375.0 7, 187.50
18.82
362.0 7,046.00
19.08
372.0 7, 306.00
19.26
382.0] 7, 566.00
19. 44
27
369.0 7, 411. 50
19.68
379.0 7, 681. 50
19.87
389.0 7,951. 50
20.05
28
376.0 7,784.00
20.28
386.0 8,064.00
20.48
396.0 8, 344. 00
20.66
29
383.0 8, 163. 50
20.87
393.0 8, 453. 50
21.07
403. 0 8,743. 50
21. 27
30 390.0 8,550.00
21.46
400.0 8,850.00
21.67
410.0 9, 150. 00
21.87
31
397.0 8, 943. 50
22.05
407.0 9, 253. 50'
22.26
417.0 9, 563. 50
22.47
32 404. 0 9, 344. 00
22.63
414.0 9, 664.00
22.85
424.0 9, 984. 00
23.06
33
411.0 9, 751.50
23.20
421. 010, 081.50
23.43
431. 010, 411. 50
23.65
34
418. 0 10, 166. 00
23.78
428.0 10, 506. 00.
24.01
438. 0 10, 846.00
24. 24
35
425. 010, 587.50
24. 35
435.010, 937. 50
24.59
445.0 11, 287,50
24.82
36
432. 0|11, 016. 00
24.92
442. 011, 376. 00
25. 16
452. 011, 736.00
25.40
37
439. 011, 451. 50|
25.48
449. 011, 821. 50
25.73
459.0 12, 191. 50
25.97
38
446. 011, 894. 00
26.05
456. 012, 274.00
26.30
466.0 12, 654. 00
26.55
39
453. 012, 343. 50
26.61
463. 012, 733. 50
26.87
473. 013, 123. 50
27.12
40
460.012, 800.00
27.16
470.0 13, 200. 00
27.43
480. 0 13, 600. 00
27.69
41
467. 0 13, 263. 50
27.72
477. 013, 673. 50
27.99
487. 0 14, 083. 50
28.25
42
474. 0 13, 734.00
28. 27
484. 0 14, 154. 00
28.55
494. 014, 574.00
28.82
43
481. 0 14, 211.50
28.82
491.014, 641. 50
29.11
501. 015, 071, 50
29.38
?
44
488. 014, 696. 00
29.37
498. 0/15, 136.00
29.66
508. 015, 576. 00
29.94
45
495. 015, 187.50
29.92
505. 015, 637. 50
30. 21
515. 0 16, 087. 50
30.49
46
502. 0|15, 686. 00
30.47
512. 016, 146. 00
30.76
522. 0 16, 606.00
31.05
47
509. 0 16, 191. 50
31.01
519.016, 661. 50
31.31
529. 017, 131.50
31.60
48
516.016, 704. 00
31.55
526. 0 17, 184. 00:
31.85
536. 0 17, 664. 00
32. 15
49
523. 0 17, 223. 50
32.09
,
533. 017, 713. 50
32.40
543.0 18, 203. 50
32.70
50
550. 018, 750.00 33.24
530. 017, 750.00
32.94
32.63
540.0 18, 250.00
HYDRAULIC TABLES
241
Table 14.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T T
A
T
T
A
T
T
A
0.2
3. 6
0.56 0.15
4.6
0.76 0.16 5.6
0.4
5. 2
1.44 .27
6.2
1.84
.29
7.2
0.96 0.17
2. 24.31
6. 6
1.16 0.17
8.2
2.64 .32
0.6
6.8
2.64
.38 7.8
3. 24
.41
8.81
3.84.43
9.8
4.44.45
0.8
8.4
4. 16
48 9.4
4.96
•
.52 10.4
5.76 .54 11.4
6.56 .57
1.0
10.0
6.00
.59 11.0
7.00
.62 12.0
1.2
11. 6
8.16 .69 12.6
9.36
.73 13.6
8.00 .65 13.0
10.56.76 14.6
9.00 .68
11.76 .79
1.4
13. 2
10.64
1.6
14. 8
1.8
16. 4
.79 14.2
13.44.88 15.8
16.56 .98 17.4
12.04
.83 15. 2
•
15. 04 .93
18. 36 1.03
16.8
18. 4
13. 44
16.64.97 17.8
20.16 1.07| 19.4
86 16.2
14.84 .90
18.24 1.00
21.96 1,11
2.0
18.0
2.2 19.6
2.4
21.2
2.6
22.8
20.00 1.08 19.0
23.76 1.18 20.6
27.84 1.28 22.2
32. 24 1.38 23.8
22.00 1.13) 20.0
25.96 1.23 21, 6
30.24 1.33 23. 2
34.84 1.43 24.8
24.00 1.17 21.0
28.16 1.27 22, 6
32.64 1.37| 24.2
26.00 1,21
30.36 1.31
35.04 1.41
2.8
24. 4
36.96 1.47| 25.4|
39.76 1.52 26.4
37.44 1.47 25.8
42.56 1.57 27.4
40.04 1.51
45.36 1.61
3.0
26. 0
42.00 1.57 27.0
45.00 1.62 28. 0
3.2
27.6
3.4
29. 2
3.8
30.8
3.8 32.4
47.36 1.67 28.6
53.04 1.77 30.2
59.04 1.86 31.8
65.36 1.96 33.4
4.0
34.0
4.2
35. 6
4. 4
37.2
4.6
38.8
4.8
40.4
72.00 2.06 35.0
78.96 2.16 36.6
86.24 2.25 38.2
93.84 2.35 39.8
101.76] 2. 45 41. 4
76.00 2.11 36.0
83. 16 2.21 37.6
90.64 2.31 39.2
98.44 2.40 40.8
106.56 2.50 42. 4
5.0
42.0
5.2
43. 6
5.4
45. 2
5.6
46.8
5.8
48.4
110.00| 2.54| 43.0
118.56 2.64 44.6
127.44 2.74 46.2
136.64 2.84 47.8
146.16 2.93 49.4
6.0
50.0
6.2
51. 6
6.4
53.2
6.6
54.8
6.8
56.4
156.00 3.03 51.0
166. 16 3. 13 52.6
176. 64 3.22] 54. 2
187.44 3.32 55.8
198.56| 3.42 57.4|
50.56 1.72 29.6
56.44 1.82 31, 2
62.64 1.92 32.8
69. 16 2.01 34. 4
115.00 2.60 44.0
123.76 2.70 45.6
132.84 2.79 47.2
142. 24 2.89 48.8
151.96 2.99 50.4
162.00 3.09 52.0
172. 36 3. 18 53.6
183.04 3.28 55.2
194.04 3.38 56.8
205.36 3.48) 58.4
48.00 1.67 29.0
53.76 1.77 30, 6
59.84 1.87 32, 2
66. 24 1.97 33.8
72.96 2.06] 35.4|
80.00 2.16 37.0
87.36 2.26 38.6
95.04 2.36 40.2
103.04 2.46 41, 8|
111.36 2.56 43, 4
120.00 2.65 45.0
128.96 2.75 46.6
138. 24 2.85 48.2
147.84 2.95 49.8
157.76 3.04 51.4
168.00 3.14 53.0
178.56 3.24 54.6
189. 44 3.34| 56.2
200.64 3.43 57.8
212. 16 3.53 59.4
63. 24 1.91
69.84 2.01
76.76 2.11
84.00 2.21
91.56 2.31
125.00) 2.70
134.16 2.80
143.64 2.90
153.44 3.00
51.00 1.71
56.96 1.81
99.44 2.41
107.64 2.51
116. 16 2.61
163.56 3.10
174.00 3.19
184.76 3.29
195.84 3.39
207.24 3.49
218.96 3.59
7.0 58.0
7.5 62.0
8.0 66.0
8.5 70.0
9.0 74.0
210.00 3.52 59.0
240.00 3.76| 63.0
217.00 3.57 60.0
217.00 3.57 60.0
247.50 3.82 64,0
224.00 3.63 61.0
255.00 3.87 65.0
231.00 3.68
262.50 3.93
272.00 4.00 67.0
280.00 4.06 68. 0
288.00 4.12 69.0
296.00 4.17
306.00 4.24 71.0
314.50 4.30 72.0
342.00 4.49 75.0
351.00 4.55 76.0
323.00 4.36 73.0
360.00 4.60| 77.0
331.50 4.41
369.00 4.66
9.5
10.0 82.0
78.0
380.00 4.73 79. 0
82.0
420.00 4.97 83.0
389.50 4.79 80.0
430.00 5.03 84.0
399.00 4.85| 81.0 408.50 4.90
440.00 5.09 85.0 450.00 5.15
10.5 86.0 462.00 5.22 87.0
483.00 5.33 89.0 493.50 5.39
472.50 5.27 88.0
242
HYDRAULIC TABLES
Table 14.-Area in square feet, A, top width in feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1—Continued
and

Bottom width
6 feet
Bottom width
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
T
A
T
A
g
T
A
0.2
7.6
0.4
9.2
1.36 0.18 8.6
3.04 .33 10.2
1.56 0.18
9.6
3.44
.33
11. 2
0.6
10.8
5. 04 .46 11.8
5. 64
.47
12.8
0.8
12. 4
7.36
.58 13.4
8.16
.60 14.4
8.96
1.76 0.18 10.6
3.84.34 12.2
6. 24.48 13.8
.61
1.96 0.18
4.24 .34
15. 4
6.84.49
9.76 .63
1.0
14.0
10.00 70 15.0
11.00
.72 16.0
12.00
74 17.0
13.00
.75
1.2
15. 6
12.96
.82 16.6
14. 16
1.4
17. 2
1.6
18.8
1.8
20.4
16. 24 .93 18.2
19.84 1.03| 19.8|
23.76 1.14 21.4|
.84 17.6
17.64 .95 19.2
21.44 1.06 20.8
25.56 1.17 22.4
15. 36
.86 18.6
16.56 .88
19.04
.97 20.2
20.44.99
23.04 1.09 21.8
27.36 1.20 23.4
24.64 1.11
29.16 1.22
2.0 22.0
28.00 1.24 23.0
30.00 1.28 24.0
32.00 1.31 25.0
34.00 1.33
2.2 23.6
2.4 25.2
2.6 26.8
2.8 28.4
32. 56 1.35 24. 6
37.44 1.45 26. 2
42.64 1.55 27.8
48.16 1.66 29.4
34.76 1.38 25.6
36.96 1.41 26, 6
39.16 1.44
39.84 1.49 27. 2
45. 24 1.59 28.8
50.96 1.69 30.4
42.24 1.52 28.2
44.64 1.55
47.84 1.62 29.8
50.44 1.66
3.0 30.0
3.2 31.6
3.4 33.2
3.6 34.8
54.00 1.76 31.0
60. 16 1.86 32.6
66.64 1.96 34. 2
73.44 2.06] 35.8
3.8
36. 4
80.56 2.16 37.4
57.00 1.80 32.0
63.36 1.90 33.6
70.04 2.00 35. 2
77.04 2.10 36. S
84.36 2.20 38.4
53.76 1.73) 31.4)
60.00 1.83| 33.0
66. 56 1.94 34. 6
73.44 2.04 36. 2
80.64 2.14 37.8
88. 16 2. 24 39. 4
56.56 1.76
63.00 1.87
69.76 1.97
76.84 2.07
84.24 2.18
91.96 2.28
4.0 38.0
4.2 39.6
4.4
41.2
4.6 42.8
4.8
44. 4
88.00 2.26] 39.0
95.76 2.36 40.6
103.84 2.46| 42.2
112. 24 2.55 43.8
120.96 2.65 45.4
92.00 2.30 40.0
99.96 2.40 41.6
108.24 2.50|| 43.2|
116.84 2.60 44.8
125.76 2.70 46.4
96.00 2.34 41.0
104. 16 2. 44 42.6
112.64 2.54 44.2
100.00 2.38
108.36 2.48
117.04 2.58
121. 44
2.64| 45.8|
126.04 2.69
130.56 2.74 47. 4
135.36 2.79
5.0 46.0
5.2 47.6
5.4 49.2
5.6 50.8
5.8
52.4
130.00 2.75 47.0
139.36 2.85 48.6
149.04 2.95 50.2
159.04 3.05 51.8
169.36 3.15 53.4|
135.00 2.80 48.0
144. 56 2.90 49.6
154. 44 3.00
140.00 2.84 49.0
149. 76 2.94 50.6
145.00 2.89
154.96 2.99
51.2
51.2
159.84 3.04 52. 2
165.24 3.09
164.64 3. 10
52.8
170. 24 3.14 53.8
175.84 3. 19
175. 16 3. 19
54.4
54.4
180.96 3.24 55.4
186.76 3.29
6.8
60.4
7.0
7.5 66.0
8.0 70.0
62.0
238.00 3.73 63.0
270.00 3.98 67.0
304.00 4.22 71.0
245.00 3.79| 64.0
277.50 4.03 68.0
312.00 4.28 72.0
252.00 3.83 65.0
285.00 4.08 69.0
320.00 4.33 73.0
328.00 4.38
8.5 74.0
340.00 4.47 75,0
9.0 78.0
378.00 4.71 79.0
348.50 4.52 76.0
387.00 4.77 80.0
357.00 4.57 77.0
396.00 4.82 81.0
365.50 4.62
405.00 4.87
9.5 82.0
10.0 86.0
418.00 4.96 83.0
460.00 5. 20 87.0
427.50 5.01 84.0
470.00 5.25 88.0
437.00 5.06 85.0
480.00 5.31 89.0
446.50 5.11
490.00 5.36
6.0 54.0
6.2 55.6
6.4 57.2
6.6 58.8
180.00 3.24 55.0
190.96 3.34 56.6
202.24 3.44 58. 2
213.84 3. 54 59.8
225.76 3.64 61.4
186.00 3.29 56.0
197. 16 3.39 57.6
208.64 3.49 59.2
220.44 3.59 60.8
232. 56 3.69 62.4
192.00 3.34 57.0
203. 36 3.44 58, 6
215.04 3. 54 60.2
227.04 3.64 61.8
239. 36 3.74 63.4
233. 61 3.68
246. 16 3.78
259.00 3.88
292.50 4. 13
198.00 3.39
209.56 3.49
221.44 3.58
10.5 90.0
535.50 5.60
504.00 5.44 91.0
525.00 5.55 93.0
514.50 5.50 92.0
HYDRAULIC TABLES
243
width in feet, T, and
Table 14.-
14.-Area in square feet, A, top width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
Depth
T
A
r
T
A
↑ T
A
T
A
0.2
0.4
11.6
13. 2
0.6
14.8
0.8
16.4
2.16 0.19 13.6
4.64 .35 15.2
7.44 .50 16.8
10. 56 64 18.4
2.56 0.19 15.6
5. 44 .36 17.2
8.64
.51 18.8
2.96 0.19 17.6
6. 24 .36 19.2
9.84 .52 20.8
3.36 0.19
7.04
.36
11.04 .53
12.16
.65 20.4
13.76
.67 22.4
15.36 .68
1.0 18.0
14.00 77 20.0
16.00
1.2 19.6
17.76 .89 21.6
20. 16
.79 22.0
.92 23.6
1.4 21.2
21.84 1.01 23. 2
1.6 22.8
1.8 24. 4
26. 24 1.13 24.8
30.96 1.25 26.4
24. 64 1.05| 25.2
29.44 1.17 26.8
34.56 1.29 28.4
18.00 81 24.0
22.56 .94 25.6
27.44 1.07 27.2
32.64 1.20 28.8
38.16 1.32 30.4
20.00
24.96
.82
.96
30.24 1. 10
35.84 1.23
41.76 1.35
2.0 26.0
2.2 27.6
2.4 29.2
2.6 30.8
2.8 32.4
36.00 1.36 28.0
41.36 1.47 29.6
47.04 1.58 31.2
53.04 1.69 32.8
59. 36 1.79 34. 4
40.00 1.40 30.0
45. 76 1.52 31.6
51.84 1.63 33.2
58. 24 1.74 34.8
64.96 1.85 36.4
44.00 1.44 32.0
50.16 1.56 33.6
56.64 1.68 35.2
63.44 1.79 36.8
70.56 1.90 38.4
48.00 1.48
54.56 1.60
61.44 1.72
68. 64 1.83
76.16 1.95
eð eð eð eð eð
3.0
34.0
66.00 1.90 36.0
72.00 1.96 38.0
3.2
35.6 72.96 2.01 37.6
79.36 2.07 39.6
3.4
37.2 80.24 2.11 39. 2
87.04 2.17 41. 2
3.6
38.8
87.84 2.21 40.8
3.8
40.4
95.76 2.32 42, 4
95.04 2.28 42.8
103.36 2.39 44. 4
4.0
42.0
104.00 2.42 44.0
4. 2
43.6
4. 4 45.2
4. 6
46.8
4.8
48. 4
112.56 2.52 45.6
121.44 2.62] 47.2|
130.64 2.73 48.8
140.16 2.83 50.4
5.0 50.0
5.2 51.6
5.4 53.2
5.6 54.8
5.8 56.4
150.00 2.93) 52.0
160.16 3.03 53.6
170.64 3.13 55. 2
181, 44 3. 23 56.8
6.0 58.0
6.2 59.6
6. 4
61.2
6.6
62.8
6.8
64. 4
204.00 3.43 60.0
215.76 3.53 61.6
227.84 3.63| 63. 2|
240.24 3.73 64.8
252.96 3.83 66.4
7.0
66.0
266.00 3.93 68. 0
7.5 70.0
8.0 74.0
8.5 78.0
9.0 82.0
9.5
86.0 456.00 5.16 88.0]
10.0 90.0 500.00 5.41 92.0
300.00 4.18 72. 0
336.00 4.42 76.0
374.00 4.67 80.0
414.00 4.92 84.0
280.00 4.02 70.0
315.00 4.27 74.0
352.00 4.51 78.0
391.00 4.76 82.0
432.00 5.01 86.0
192.56 3.33 58.4
112.00 2.49 46.0
120.96 2.59 47.6
130.24 2.70 49.2
139.84 2.80 50.8
149.76 2.90 52.4
50.8
160.00 3.01 54.0
170.56 3.11 55.6
181.44 3. 21 57. 2
192.64 3.31 58.8
204.16 3.41 60.4
216.00 3.51 62.0
228. 16 3.61 63.6
240. 64 3.71 65.2
253.44 3.82 66.8
266. 56 3.92 68.4
120.00 2.55| 48.0
129.36 2.66 49.6
139.04 2.77 51.2|
149.04 2.87 52. 8
159.36 2.97 54.4
228.00 3.59 64.0
240.56 3.69 65. 6
253.44 3.80 67.2
266. 64 3.90 68.8
280. 16 4.00 70.4
84.00 2.06
92.16 2.17
100. 64 2. 29
109. 44| 2,40
118.56 2.50
128.00 2.61
137.76 2.72
147.84 2.83
158. 24 2.93
240.00 3.67
252.96 3.77
266. 24 3.87
279.84 3.97
293.76 4.08
308.00 4.18
345.00 4.43
384.00 4.68
78.00 2.01 40.0
85.76 2.12 41.6
93.84 2.23 43.2
102.24 2.34 44.8
110.96 2.45 46. 4
168.96 3.04
170.00 3.08 56.0
180.96 3. 18 57.6
192. 24 3.28 59.2
203.84 3.39 60.8
215. 76 3.49 62.4
180.00 3.15
191.36 3.25
203.04 3.35
215.04 3.46
227,36 3.56
294.00 4. 10| 72.0
330.00 4.35 76.0
368.00 4.60 80.0
408.00 4.85| 84.0
450.00 5. 10| 88.0]
425.00 4.94
468.00 5.19
475.00 5.26 90.0
520.00 5.50 94.0
494.00 5.35 92. 0
540,00 5.60 96.0
513.00 5.44
560.00 5.69
10.5 94.0 546.00 5.65 96.0
609.00 5.94
567.00 5.75 98.0
588. 00 5. 85 100.0
244
HYDRAULIC TABLES
T, and
Table 14.-Area in square feet, A, top width in feet,
feet, T,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1
Continued

Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
Depth
T
A
T T
A
T
A
g
T
A
T
0.2
19.6
0.4 21.2
0.6 22.8
12. 24
0.8
24.4
16.96
1.0
26.0
1.2
27.6
1.4
29.2
1.6 30.8
1.8 32.4
22.00 .84 28.0
27.36 .98 29.6
33.04 1.12 31.2
39.04 1.25 32,8
45.36 1.38 34.4
3.76 0.19 21.6
7.84.37 23. 2
.53 24.8
.69 26.4
4.16 0.19 23.6
8.64.37 25.2
13.44 .54 26.8
18.56.70 28.4
24.00
4.56 0.19 25.6
9.44.37 27.2
14.64 .54 28.8
20.16
.70 30.4
4.96 0.19
10.24 .38
15.84 .55
21.76 .71
.85] 30.0
29.76 1.00 31.6
35.84 1.14] 33. 2
42.24 1.27 34.8
48.96 1.41| 36.4|
26.00 .86 32.0
32.16 1.01| 33.6
38.64 1.15 35.2
28.00 .87
34.56 1.02
41.44 1.17
45.44 1.29 36.8
48.64 1.31
52.56 1.43 38.4
56.16 1.45
2.0
34.0
52.00 1.51 36.0
2.2 35.6
2.4 37.2
2.6
38.8
2.8
40. 4
58.96 1.63 37.6
66.24 1.75| 39.2
73.84 1.87| 40.8
81.76 1.99|| 42,4
56.00 1.53 38.0
63.36 1.66 39.6
60.00 1.56 40.0
64.00 1.58
67.76 1.69 41.6
72.16 1.71
71.04 1.79 41.2
79.04 1.91 42.8|
87.36 2.03| 44.4
75.84 1.81 43. 2
80.64 1.84
3.0
42.0
3.2
43. 6
3.4
45.2
3.6
46.8
3.8
48.4
90.00 2.11| 44.0|
98.56 2.22 45.6
107.44 2.33 47.2
116.64 2.45] 48.8
126.16 2.56 50.4
96.00 2.15| 46.0
104.96 2.26 47.6
114. 24 2.38 49.2
123.84 2.49] 50.8]
133.76 2.61 52.4
4.0
50.0
4.2
51.6
4.4
53. 2
4.6
54.8
4.8
56. 4
136.00 2.67 52.0
146.16 2.78| 53.6
156.64 2.89 55.2
167.44 2.99 56.8
178.56 3.10 58.4
144.00 2.72| 54.0
154.56 2.83 55.6
165.44 2.94 57.2
176.64 3.05| 58,8|
188. 16 3.16] 60.4
5.0
58.0
5.2
59.6
190.00 3.21] 60.0
201.76 3.31 61, 6
5. 4
61.2
213.84 3.42 63.2
5.6
62.8
226. 24 3.53 64.8
5.8
64.4
238.96 3.63 66.4
6.0
66.0
252.00 3.73 68.0
6. 2
67.6
6.4
6.6
69.2
70.8
6.8 72.4
265.36 3.84 69.6
279.04| 3.94| 71.2
293.04 4.05 72.8
307.36 4.15 74.4
200.00 3.27 62.0|
212. 16 3.37 63.6.
224. 64 3.48 65. 2
237.44 3.59 66.8
250.56 3.69 68.4
264.00 3.80 70.0
277.76 3.91 71.6
291.84| 4.01| 73.2|
306. 24 4.11 74.8
320.96| 4.22| 76.4|
102.00 2.18 48.0
111.36 2.30 49.6
121.04 2.42 51. 2
131.04 2.54] 52.8)
141.36 2.65 54.4
152.00 2.76 56.0
162.96 2.88 57.6
174. 24 2.99 59.2
185.84 3.10 60.8
197.76 3.21 62.4
210.00 3.32 64.0
222. 56 3.43 65.6
235. 44 3.54 67. 2
248.64 3.65 68.8
262.16 3.75 70.4
276.00 3.86 72.0
290. 16 3.97 73.6
304.64 4.07 75, 2
319.44 4. 18 76.8
334.56 4.29| 78.4||
89.44 1.97
98.56 2.09
108.00 2,22
117.76 2.34
138.24 2.57
148.96 2.69
84.24 1.94 44.8
92.96 2.06 46.4
127.84 2.46
160.00 2.81
171.36 2.92
183.04 3.04
195.04 3.15
207.36 3.26
220.00 3.37
232.96 3.48
246.24 3.59
259.84| 3.70
273.76 3.81
288.00 3.92
302.56 4.03
317.44 4. 13
332. 64 4.24
348.16| 4.35
7.0 74.0
7.5 78.0
8.0 82.0
8.5 86.0
9.0 90.0
322.00| 4.25] 76.0
360.00) 4.51 80.0
400.00 4.76] 84.0
442.00 5.02 88.0
486.00 5.27 92.0
336.00 4.32 78.0
375.00 4.58 82.0
416.00 4.84 86.0
459.00 5.09 90.0
504.00 5.35 94.0
350.00 4.39 80.0
390.00 4.65) 84.0
432.00 4.91 88.0
476.00 5.17 92.0
522,00 5.43 96.0
364.00 4.45
405,00 4.72
448.00 4.98
493.00 5.24
540.00 5.50
9.5 94.0
10.0 98.0
532.00 5.52 96.0
580.00 5.77100.0 600.00 5.86 102. 0]
551.00 5.60) 98.0|
570.00 5.68|100.0
589.00 5.76
620.00 5.94104.0
640,00 6.01
10,5 102.0 630.00 6.02104.0_651.00| 6. 11|106.0
02/10
693.00 6.27
672.00 6.19 108,0
HYDRAULIC TABLES
245
Table 14.-Area in square feet, A,
A,
top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1—Continued
T, and

Depth
Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
T
Α
-
T
A
Т
T
A
T T
A
T
0.2 27.6
0.4 29.2
0.6 30.8
0.8 32.4
5.36 0.19 29.6
11. 04 .38 31.2
17.04.55 32.8
23.36.72| 34.4
5.76 0.19 31.6
11.84 .38 33.2
18. 24 .55 34.8
24.96 .72 36.4|
6.16 0.19 33.6
12. 64 .38 35.2
19.44.56| 36.8
26.56.73 38.4
6.56 0.19
13.44 .38
20.64.56
28.16 .73
1.0 34.0
1.2 35.6
30.00 88 36.0
36.96 1.03| 37.6)
1.4 37.2
1.6
38.8
1.8
40.4
44. 24 1.18 39.2
51.84 1.32) 40.8)
59.76 1.46 42.4
32.00 .88 38.0
39.36 1.04 39.6
47.04 1.19 41.2
55.04 1.34 42.8
63.36 1.48| 44.4|
34.00 .89 40.0
41.76 1.05 41. 6
49.84 1.20 43.2
58.24 1.35 44.8
66.96 1.49 46. 4
36.00 .89
44.16 1.05
52.64 1.21
61.44 1.36
70.56 1.51
2.0
42.0
2.2
43.6
2.4
45. 2
2.6
46.8
2.8
48.4
68.00 1.60 44.0
76.56 1.73 45.6
85. 44 1.87 47.2
94.64 1.99 48.8
104. 16 2.12 50.4
72.00 1.62 46.0
80.96 1.75 47.6
90.24 1.89 49. 2
99.84 2.02 50.8
109.76 2.15] 52.4
76.00 1.63 48.0
85.36 1.77 49.6
95.04 1.91 51. 2
105.04 2.04 52.8
115.36 2.17 54. 4
80.00 1.65
89.76 1.79
99.84 1.93
110.24 2.06
120.96 2.20
3.0
50.0
3.2
51.6
3.4
53. 2
3.6
54.8
3.8
56.4
114.00 2.25 52.0
124.16 2.37 53.6
134. 64 2.49| 55.2
145.44 2.61 56.8
156.56 2.73 58. 4
120.00) 2.28|| 54.0
130.56 2.40 55.6
141.44 2.52 57.2
152.64 2.65 58.8
164.16 2.77 60.4
126.00 2.30 56.0
136.96 2.43 57.6
148.24 2.55 59.2
159.84 2.68 60.8
171. 76 2.80 62.4
132.00 2.33
143.36 2.46
155.04 2.58
167.04 2.71
179.36 2.83
4.0 58.0
4.2 59.6
4.4 61.2
168.00) 2.85] 60. 0
179.76 2.96 61. 6
191.84 3.08 63. 2
4.6 62.8
4.8 64.4
204. 24 3.19 64.8
216.96 3.31| 66. 4|
176.00 2.89 62.0
188.16 3.00 63.6
200.64 3.12 65.2
213.44 3.24] 66.8|
226.56 3.35 68.4
184.00 2.92 64.0
196.56 3.04 65. 6
209.44 3.16 67.2
222.64 3.28 68.8
236.16 3.39 70.4
192.00 2.95
204.96 3.08
218.24 3. 20
231.84 3.32
245.76 3.43
6.0 74.0
6.2 75.6
6.4 77.2
6.6 78.8
6.8 80.4
300.00 3.97 76.0
314.96 4.08 77.6
330. 24 4.19 79.2
345.84 4.30 80.8
361.76 4.41 82. 4
5.0 66. 0
5.2
ம்ம்ம்ம்
0246s ∞
5.4
5.6
5.8
67.6
230.00 3.42 68.0
243.36 3.53 69. 6
69.2 257.04 3.64 71. 2
271.04 3.76) 72.8
285.36 3.87] 74.4
70.8
72.4
240.00 3.47 70.0
253.76 3.58 71.6
267.84 3.69 73. 2
282. 24 3.801 74. 8
296.96 3.92 76.4
312.00 4.03 78.0
327.36 4. 14 79. 6
343.04 4.25 81.2
359.04 4.36 82.8
375.36 4.46) 84.4
250.00 3.51 72.0
264. 16 3.62 73.6
278. 64 3.74 75.2
293.44 3.85 76.8
308. 56 3.96 78.4
260.00 3.55
274.56 3.67
289.44 3.78
304.64 3.90
320. 16 4.01
336.00 4.12
352.16 4.24
324.00 4.08 80.0
339.76 4.19 81.6
355.84 4.30 83. 2
372. 24 4.41 84.8
388.96 4.52 86.4
368.64 4.35
385.44 4.46
402. 56 4.57
7.0 82.0
378.00 4.51 84. 0
7.5 86.0
420.00 4.78 88.0
8.0 90.0
464.00 5.05 92.0
392.00 4.57 86.0
435.00 4.84 90.0
480.00 5.11 94.0
86.0
406.00 4.63 88. 0
450.00 4.901 92.0
496.00 5.17 96.0
420.00 4.68
465.00 4.95
512.00 5.23
8.5 94.0
9.0 98.0
510.00 5.31 96.0
558.00 5.57 100.0
527.00 5.37 98.0
576.00 5.64 102.0
544.00 5.43 100.0
594.00 5.70 104.0
561.00 5.50
612.00 5.76
9.5 102.0
10.0 106.0
608.00 5.83 104. 0
660.00 6.09/108. 0
627.00 5.90 106.0
680.00 6.16110.0
646.00 5.96₤108.0||~665.00) 6.03
700.00 6.22112, 0] 720.00 6.29
10.5 110.0
777.00 6.55
714.00 6.34 112.0
756.00 6.48116.0
735.00 6.41114.0
41/11
246
HYDRAULIC TABLES
Table 14.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
Depth
T
A
T
T
A
T
Τ
A
→
T
A
0.2
36, 6
0.4
38.2
•
0.6
39.8
7.16 0.20 41.6
14.64 38 43.2
22.44.56 44.8
8.16
0.20 46. 6
16. 64
.38 48.2
9.16 0.20 51. 6
18.64.39 53.2
10.16 0.20
20.64.39
25. 44
.57 49.8
0.8
41. 4
30.56.73 46.4
34.56
.74 51.4
28.44 57 54.8
38.56
31.44 .57
.75 56. 4
42.56 .75
1.0
43.0
39.00 .90 48. 0
1.2
44. 6
1.4
46. 2
1.6
47.8
1.8 49.4
47.76 1.06| 49.6|
56.84 1.22 51.2
66. 24 1.37 52,8
75.96 1.52| 54,4|
44.00 .91 53.0
53.76 1.08 54.6
63.84 1.24 56. 2
74. 24 1.40 57.8
84.96 1.55| 59.4|
49.00 .92 58.0
54.00 .93
59.76 1.09 59.6
70.84 1.25 61.2
82. 24 1.41 62. 8
93.96 1.571 64.4|
65.76 1,10
77.84 1.26
90.24 1.43
102.96 1.59
si si si si ci
51.0 86.00 1.67] 56. 0
52.6
54. 2
55.8
57.4
96.36 1.81 57.6
107.04 1.95 59. 2
118.04 2.09 60.8
129.36 2.23 62.4
96.00 1.70 61.0
107.36 1.85 62.6
119.04 1.99 64.2
131.04 2.13 65.8
106.00 1.72 66.0
118.36 1.87 67.6
131.04 2.02 69. 2
116.00 1.74
129.36 1.90
143.04 2.05
143. 36 2. 27
67.4
144.04 2. 17 70.8
157.36 2.31 72, 4
157.04 2.20
171.36 2.34
3.0 59.0
141.00 2.36| 64.0
3.2 60.6
152.96 2.49 65. 6
3.4 62.2
3.6 63.8
165. 24 2.62| 67.2|
156.00 2.41 69.0
168.96 2.55 70.6
182.24 2.68| 72, 2|
171.00) 2. 45]
184.96 2.59 75, 6
199.24 2.73 77.2
74. 0
186.00 2.49
200.96 2.63
216.24 2.77
177.84 2.75 68.8
195.84 2.81 73.8
3.8
65. 4
190.76 2.88 70.4
209.76 2.94 75.4
209.76 2.94 75.4
4.0 67.0
204.00 3.00 72.0
4.2
68.6
4.4
70.2
4.6 71.8
4.8 73.4
217, 56 3.12 73.6
231, 44 3. 25 75, 2
245, 64 3.37 76.8
260. 16 3.49 78. 4
224.00 3.07 77.0
238.56 3.20 78.6
253.44 3.32 80.2
268.64 3.45 81.8
284. 16 3.57 83.4
5.0 75.0
5.2 76.6
5.4 78.2
5.6 79.8
5.8 81.4
6.0 83.0
6.2 84.6
6.4 86.2
6.6
87.8
6.8 89.4
7.0 91.0
441.00 4.76 96.0
7.5 95.0 487.50 5.03100. 0
8.0 99.0 536.00 5.31104.0
8.5 103.0 586.50 5.58108. 0
9.0 107.0 639.00 5.85112. 0
9.5 111.0
476.00 4.87 101. 0
525.00 5.15105. 0
576.00 5.44 109. 0
629.00 5.71|113. 0|
684.00 5.99 117. 0
275.00 3.61| 80.0|
290.16 3.73 81.6
305. 64 3.84 83. 2
321.44 3.96 84.8
337.56 4.08 86.4
354.00 4.19 88.0
370.76 4.30 89.6
387.84 4.42 91.2
405. 24 4. 53 92.8
422.96 4.64 94. 4
300.00 3.69 85.0
316. 16 3.81] 86.6
332.64 3.94 88.2
349.44 4.05 89.8
366. 56 4. 17 91.4
384.00 4.29 93.0
401.76 4. 41 94.6
419.84 4.53] 96.2
438. 24 4.64] 97.8
456.96 4.76 99.4
244.00 3.13 82. 0
244.00 3.13 82.0
259.56 3.26 83.6
275.44 3.39 85.2
291.64 3.52) 86.8
308. 16 3. 64] 88. 4
325.00 3.77 90.0
342. 16 3.89 91.6
359.64 4.02 93.2
377. 44 4. 14 94.8
395. 56 4. 26 96. 4
414.00 4.38 98. 0
432. 76 4. 50 99.6
451.84 4.62|101. 2|
471. 24 4.74102. 8
490.96| 4.86|104. 4
511.00 4.97 106. 0
562.50 5.26110.0
616.00 5.55114. 0
671.50 5.83118. 0
729.00 6.11 122. 0
247.76 3.05
314.64 3.58
332. 16 3.71
350.00 3.84
368. 16 3.96
386.64 4.09
546.00 5.07
600.00 5.36
656.00 5.66
714.005.95
774.00 6.23
213.84 2.86 78.8
228.76 3.00 80.4
231.84 2.91
264.00 3.18
280.56 3.31
297.44 3.45
405. 44 4. 22
424.56 4.34
444.00 4.46
463.76 4.59
483.84 4.71
504.244.83
524.96 4.95
10.0 115.0
693.50 6.12116. 0
750.00 6.39 120.0
741.00 6.26|121. 0]
800.00 6.53|125. 0
788.50 6.39126. 0
850.00 6.67 130. 0
836.00 6 51
900.00 6.79
10.5 119.0 808.50 6.65/124. 0
966.00 7.07
861.00 6.80/129. 0
913.50 6.94134. 0
HYDRAULIC TABLES
247
Table 14.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
Depth
T
A
T
A
g
T
A
T
T
A
0.2 61.6
0.4
63.2
0.6
64.8
0.8
66.4
12.16 0.20| 71.6
24.64.39】 73.2|
37.44.58 74.8
50.56 .76| 76.4
1.0 68.0
1.2 69.6
1.4 71.2
1.6 72.8
1.8 74.4
64.00 .94| 78.0
77.76 1. 11 79.6
91.84 1.28 81.2
106.24 1.45 82.8
120.96 1.62 84.4
14. 16 0.20 81.6
28.64.39| 83.2
43.44 .58 84.8
58.56 .76 86.4
74.00 .95 88.0
89.76 1.12 89.6
105.84 1.30 91.2
122. 24 1.47 92.8
138.96 1.64 94. 4
•
16.16 0.20 91.6
32.64 .39 93.2
49.44
66. 56
18. 16 0.20
36.64
.39
.58 94.8
55.44 .58
.77 96.4
74.56 .77
84.00
101.76 1. 13 99.6
119.84 1.31 101. 2
138. 24
.95 98.0
94.00 .96
113.76 1.14
133.84 1.32
1.48 102. 8
154. 24 1.49
156.96
1.65 104.4
174.96 1.67
2.8
2.0
76.0
2.2 77.6
2.4 79.2
2.6 80.8
82.4
136.00 1.78 86.0
151.36 1.94 87.6
167.04 2.09 89.2
183.04 2.25 90.8
199.36 2.40 92.4
156.00] 1.80] 96.0
173.36 1.97 97.6
191.04 2. 13 99.2
209.04 2.29 100.8
227.36 2.44|102. 4|
176.00
1.82 106.0
196.00 1.84
195. 36
1.99 107.6
217.36 2.01
215.04 2. 15109. 2
239.04 2.18
235.04 2. 32 110. 8
261.04 2.34
255.36
2.48 112. 4
283.36 2.51
3.0 84.0
3.2
85. 6
3.4
87.2
3.6
88.8
3.8
90.4
4.0
92.0
4.2
93.6
4.4
95.2
4.6
96.8
4.8 98.4
304.001 3.27 102. 0
322.56 3.41 103.6
341. 44 3.55|105. 2|
360.64 3.68106. 8
380. 16 3.82 108. 4
216.00 2.55| 94.0|
232.96 2.70 95.6
250.24 2.84 97.2
267.84 2.99 98.8
285. 76 3. 13 100.4
246.00 2.60 104. 0
264.96 2.75 105. 6
284. 24 2.90 107. 2
303.84| 3.05[108. 8|
323. 76 3. 19110.4
344.00 3.34|112. 0|
364.56 3.48 113. 6
385.44 3.63 115. 2
276.00
2.64114. 0
306.00 2.67
296.96 2.79115. 6
328.96 2.83
318. 24 2.95 117. 2
339.84 3.10 118.8
361.76 3.25 120. 4
352.24 2.98
375. 84 3. 14
399.76 3.29
384.00 3.40|122. 0
424.00 3.45
406. 64
3.77|116. 8|
428. 16
3.91118.4
406. 56
429.44
452. 64
476. 16
3. 55123. 6
3.69 125. 2
3.84 126. 8
3.98|128. 4
448.56 3.60
473.44 3.75
498. 64 3.90
524. 16 4.05
5.0 100.0
5.2 101.6 420. 16
5.4 103.2 440. 64
5.6 104.8
5.8 106.4
400.00 3.95110.0
450.00
4.05 120.0
4.08 111. 6
472. 16]
4. 18|121. 6
461.44
482. 56
4.22 113. 2
4.35 114. 8
4.48|116. 4
494. 64
4. 32 123. 2
517.44 4.45 124. 8
540.56 4.59|126. 4|
500.00 4.12 130. 0
524. 16 4.27131, 6
548.64 4.41133. 2
573.44 4. 54|134. 8|
598.56 4.68 136. 4
550.00 4.19
576. 16 4.34
602.64 4.48
629.44 4. 62
656.56 4.76
6.0 108.0
6.2109. 6
6.4111. 2
6.6 112.8
6.8 114.4
7.0 116.0
7.5 120.0
8.0 124.0
8.5 128.0
9.0 132.0
504.00 4.60 118. 0
525. 76 4.73119. 6
547.84 4.86 121. 2
570. 24 4.98 122. 8
592.96 5.11 124. 4
616.00 5. 23|126. 0|
675.00 5.54 130.0
736.00 5.84 134.0
799.00 6.14 138. 0
864,00 6.44 142. 0
9.5 136.0 931.00
10.0 140.01, 000. 00
564.00 4.72|128. 0|
587.76 4.85129. 6
611.84 4.98 131. 2
636. 24 5. 11 132.8
660.96 5.24 134. 4
624.00 4.82138.0
649.76 4.96 139. 6
675.84 5.09 141. 2
702. 24 5. 22142. 8
728.96 5.36 144.4
686.00 5.37 136. 0 756.00
750.00 5.69|140.0|| 825.00
816.00] 6.00₤144.0 896.00
884.00 6.31148. 0 969.00
954.00 6.62 152. 01, 044. 00
6.73 146. 01, 026. 00
7.02 150. 01, 100.00
6. 92 156. 01, 121. 00
7.21160. 01, 200.00
684.00 4.90
711.76 5.04
739.84 5. 18
768. 24 5.32
796.96 5.46
5.49 146.0 826. 00
826.00 5.59
5.82 150. 0 900.00 5.93
6. 14/154.0 976.00 6.26
6.46 158. 01, 054.00 6.58
6.77 162. 01, 134.00 6.91
7.08 166. 01, 216. 00 7.22
7.39 170. 01, 300.00 7.54
10.5 144. 01, 071. 00
7. 69 174. 01, 386. 00 7.85
7. 31 154. 01, 176. 00
7. 51 164. 01, 281. 00
248
HYDRAULIC TABLES
Table 14.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
Depth
T
A
T
A
T T
A
T
A
*
0.2 101.6
20.16 0.20 111.6
22.16 0.20|121.6|
24.16 0.20131. 6
26.16 0.20
0.4 103.2
40.64
.39 113.2
44.64
0.6 104.8
61.44.59 114.8
.39 123.2
67.44.59 124.8
48.64 39 133. 2
52.64 .39
•
73.44.59 134.8
79.44 .59
0.8 106.4
82.56
.77 116.4
90.56
.78 126.4
98.56.78 136. 4
106.56.78
1,0 108.0
1.2 109.6
1.6 112.8
1.8 114.4
1.4 111. 2
104.00
.96118.0
125. 76 1.14119. 6
147.84 1.33121.2
170. 24 1.50 122.8
192.96 1.68 124. 4
2.0 116.0 216.00 1.85 126. 0
2.2 117.6 239.36 2.03|127. 6
2.4 119.2 263.04 2.20 129.2
2.6 120.8 287.04 2.36|130.8
2.8 122.4 311.36 2.53 132.4
114.00
.96128.0
124.00
.97138. 0
134.00 .97
137.76 1.15129.6
161.84 1.33 131.2
186. 24 1.51 132. 8
210.96 1.69 134. 4
149. 76
1.15139.6
161.76 1.16
175.84 1.34141. 2]
189.84 1.34
202. 24
228.96
1.52 142. 8|
218.24 1.52
1.70 144. 4
246.96 1.71
236.00 1.87 136.0
261.36 2.04137.6
287.04 2.21 139.2
313.04 2.38 140.8
339. 36|| 2. 55|142.4
256.00 1.88 146. 0
283.36 2.05 147.6
311.04 2. 23|149. 2|
339.04 2.40 150.8
367.36 2.57 152.4
276.00 1.88
305.36 2.06
335.04 2.24
365.04 2.41
395.36 2.58
3.0 124.0
3.2 125.6
336.00 2.69 134. 0
360.96 2.86|135.6
3.4 127.2 386.24 3.02137.2
?
3.6 128.8
3.8 130.4
411.84 3.18 138. 8
437.76 3.33 140. 4
4.0 132.0
4.2 133.6
4.4 135.2
464.00 3.49 142. 0
490.56 3.64 143. 6
517.44 3.80 145. 2
4.6 136.8 544. 64 3.95 146. 8
4.8 138.4 572. 16 4.10 148.4
366.00 2.72 144.0
392.96 2.88145. 6
420. 24 3.04147. 2
420. 24| 3.04 147.2
447.84 3.21 148.8
475. 76 3.37 150.4
504.00 3.52 152. 0
532.56 3.68 153. 6
561.44 3.84 155. 2
590.64 3.99 156. 8
620. 16 4. 15158. 4
574.56 3.72 163. 6
605.44 3.87 165. 2
636.64 4.03|166. 8]
668.16 4.19|168. 4|
396.00 2.74 154. 0
424.96 2.90 155.6
454. 24 3.07 157. 2|
483.84 3.23158.8
513.76 3.39 160.4
426.00 2.75
456.96 2.92
488.24 3.09
519.84 3.26
551.76 3.42
544.00 3.56 162. 0
584.00 3.58
616.56 3.75
649.44 3.91
682.64 4.06
716. 16 4.22
5.0 140.0
5.2 141.6
5.4 143.2
600.00 4.25 150.0
628. 16 4.40151.6
656.64 4.54 153.2
5.6 144.8
685.44 4.69 154.8
5.8 146.4
714. 56 4.83 156. 4
650.00 4.30 160.0
680.16 4.45 161. 6
710.64 4.60163.2
741.44 4.75 164.8
772.56 4.89 166. 4|
700.00 4.34|170. 0|
732.16 4. 50 171. 6
764.64 4.65 173. 2
750.00 4.38
784.16 4. 54
818.64 4.69
797.44 4.80 174. 8
830.56 4.95 176. 4|
853.44 4.84
888.56 5.00
6.0 148.0
6.2 149.6
6.4 151.2
6.6 152.8
6.8 154.4
744.00 4.98 158.0
773.76 5.12 159.6
803.84 5.26161.2
834. 24 5.40162. 8
864.96 5. 54164. 4
7.0 156.0 896.00
7.5 160.0 975.00
8.0 164. 01, 056. 00
8.5 168. 01, 139. 00]
9.0 172.01, 224.00
9.5 176. 01, 311. 00
10.0 180. 01, 400. 00
966.00
5.68 166. 0
6.02170. 01, 050. 00
6. 36 174. 01, 136. 00
6. 70 178. 01, 224.00
7.03|182. 01, 314. 00
7.35 186. 01, 406. 00
7.67190. 01, 500.00
*
5.76 176. 01, 036. 00
6. 11180. 01, 125. 00
6. 46184. 01, 216. 00
6. 80188. 01, 309. 00]
7. 13|192. 01, 404. 00|
7.47 196. 01, 501. 00
7.79|200. 01, 600. 00
8.122045.83186. 01, 106. 00 5. 89
6. 19|190. 0|1, 200. 00] 6. 26
6. 54194. 01, 296. 00 6.61
6. 89|198. 01, 394.00 6.97
7. 23|202. 01, 494. 00| 7.32
7. 57 206. 01, 596. 00 7.66
7. 90 210. 01, 700.00 8.00
804.00 5.04 168.0
835.76 5. 19169.6
867.84 5.33 171.2
900. 24 5.48|172.8|
932.96 5.62 174. 41,
864.00 5. 10178. 0
897.76 5.25 179. 6
931. 84 5.39181.2
924.00 5.15
959.76 5.30
995.84 5.45
966. 24
000. 96
5.54 182. 8|1, 032. 24 5.60
5. 68 184. 41, 068.96
5.74
10.5 184. 01, 491. 00
8. 23 214. 01, 806. 00 8.34
7.99 194. 01, 596.00
12/204.
. 01, 701. 00
HYDRAULIC TABLES
249
Table 14.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
Depth
T
A
T
A
T Τ
A
T
A
T
1.0 148.0
1.2 149.6
0.2 141.6
0.4 143. 2
0.6 144.8
0.8 146.4
28. 16 0.20 151. 6|
56.64
85. 44
114.56
144.00 .97 158.0
173.76 1.16 159. 6
.40|153. 2
.59 154.8
.78 156. 4|
30.16 0.20 161.6
60. 64 40163.2
91.44 .59 164.8
122.56.78|166. 4|
•
32.16 0.20 171. 6
64.64 .40 173. 2
97.44.59 174. 8
130.56 78 176. 4
•
34.16 0.20
68.64
.40
103. 44
.59
138. 56
.78
144.00
1.4 151.2
203.84 1.35 161.2
217.84
154.00 .97168. 0]
185.76 1.16|169. 6|
1.35|171. 2
164.00
197.76
.97 178.0
174.00 .98
1.16179. 6
209.76 1.17
231.84 1.35 181. 2
245.84 1.35
1.6 152.8
1.8 154. 4
234.24 1.53 162. 8
264.96 1.71164. 4
250.24
1.53 172. 8
266.24
1.54 182.8
282.24 1.54
282.96
1.72 174. 4
300.96
1.72 184.4
318.96 1.73
2.0 156.0
2.2 157.6
2.4159.2
296.00 1.89166. 0
327.36 2.07 167. 6
359.04 2.25|169. 2|
2.8 162.4
162.4
2.6 160.8
160.8 391.04 2.42j170.8
423.36 2.60 172. 4
316.00 1.90 176. 0|
349.36 2.08|177. 6|
383.04 2.26 179. 2
417.04 2.43|180. 8
451.36 2.61182. 4
336.00
371.36 2.08 187.6
407.04 2.26 189.2
443.04 2.44|190.8
479.36 2.62 192. 4
1.90 186. 0
356.00 1.91
393.36 2.09
431.04 2.27
469.04 2.45
507.36 2.63
3.0 164.0
456.00 2.77 174. 0
486.00
3.2 165.6
488.96 2.94 175. 6
520.96
2.78184. 0
2.95 185. 6
516.00 2.79/194. 0
552.96 2.97195. 6
546.00 2.80
584.96 2.98
3.4 167.2
522. 24 3. 11177. 2
556.24
3.12 187. 2
590. 24
3. 14|197. 2
624. 24 3.15
3.6 168.8
555.84 3.28178. 8.
591.84
3.29 188, 8
627.84
3.31 198.8
663.84 3.32
3.8 170.4
589.76 3.44|180. 4
627.76
3.46190. 4
665. 76
3.48|200. 4|
703.76 3.50
4.0 172.0
624.00 3.61 182. 0
664.00 3.63|192. 0
4.2 173.6
4.4 175.2
658.56 3.77183. 6
693.44 3. 93 185. 2
700.56
737.44
3.79193. 6
3.96 195. 2
704.00 3.65202.0
742.56 3.82203. 6
744.00 3.67
784.56 3.83
781.44
3.98 205, 2
825.44 4.00
4.6 176.8 728. 64 4. 10 186. 8
774.64
4.12 196. 8
820.64
4.15 206.8
866.64 4.17
4.8 178.4
764. 16 4.26188. 4
812.16
4.28 198. 4
860. 16
4.31 208. 4
908. 16 4.33
5.0 180.0
800.00 4.41190. 0
850.00 4.44|200.0|
900.00
4.47 210. 0
4.47 210.0
950.00 4.50
888.16
4.60201.6
940. 16
4.63 211.6
992. 16 4.66
926. 64
926. 64
4.76 203. 2
4.76 203. 2
980.64
965. 44
4.98
5.2 181.6 836. 16 4. 57 191. 6
5.4 183.2 872.64 4.73193.2
5.6 184.8 909. 44 4.88194.8
5.8 186.4 946.56 5.04 196. 41, 004. 56
6.0 188.0 984.00
6.2 189.61, 021. 76
6.4 191. 21, 059. 84
6.6 192. 81, 098. 24
6.8 194. 41, 136. 96
7.0 196.01, 176.00
7.5 200.01, 275.00
8.0 204. 01, 376.00
8.5 208.01, 479.00
9.0 212.01, 584.00
9.5 216.01, 691.00
10.0 220.0 1,800.00
10.5 224. 01, 911. 00
5. 19198. 01, 044. 00
5.35 199. 61, 083. 76
5.50 201. 21, 123. 84
5. 65202. 81, 164. 24
5. 80/204. 41, 204. 96
5.95 206. 01, 246.00
6.32210.01, 350.00
6. 68 214. 01, 456. 00
7.04218. 01, 564.00
7.39 222. 01, 674.00
7.74226. 01, 786.00
8.09 230. 01, 900.00
8.43 234. 02, 016. 00
43 234
4. 92 204. 81, 021. 44
4.92
5.08 206. 41, 062. 56
5.23 208. 01. 104.00
5. 39 209. 61, 145. 76
5. 54211. 21, 187. 84
5. 70 212. 81, 230. 24
5. 85 214. 41, 272. 96
5.85
6.00 216. 01, 316. 00
6. 37 220. 01, 425.00
6. 74 224. 01, 536.00
7. 11 228. 01, 649.00
7.47 232. 01, 764.00
7.82 236.01, 881.00
8.17 240. 02, 000. 00
8. 52,244. 02, 121.00
4. 79 213. 21, 034. 64 4.82
4.79
4.95 214. 81, 077. 44
5. 11 216. 41, 120.56
5. 27218.01, 164.00
5. 43 219. 61, 207. 76
5. 58 221. 21, 251.84
5.74 222. 81, 296. 24
5.89 224. 41, 340. 96
5. 14
5. 30
5. 46
5.62
5.78
5.93
6.04 226. 01, 386.00 6.09
6. 42 230. 01, 500.00 6.47
6.80 234.01, 616.00 6. 85
7. 17238.01, 734.00 7.22
7. 53 242. 01, 854.00 7.59
7.89 246. 01, 976.00 7.96
8. 25 250.02, 100.00 8. 32
8.60 254. 02, 226.00 8.68
60 254.
563189° ——44- -17
250
HYDRAULIC TABLES
T, and
feet, T,
Table 14.—Area in square feet, A, top width in
in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
↑
T
A
T
Τ
A
T
0.2 181.6
36. 16
0.20
191.6
38. 16
0.20
201.6
40.16
0.20
0.4
183.2
72.64
40
193. 2
76. 64
40
203. 2
80.64
.40
•
•
0.8
184.8
109.44
59
194. 8
115. 44
59
204.8
121. 44
.59
•
·
0.8
186.4
146. 56
.79
196. 4
154.56
.79
206. 4
162. 56
.79
1.0
188.0
184.00
.98
198.0
194.00
.98
208.0
204.00
.98
1.2
189.6
221.76
1. 17
199. 6
233.76
1. 17
209. 6
245. 76
1. 17
1.4
191. 2
259.84
1.36
201.2
273.84
1.36
211.2
287.84
1.36
1.6
192.8
298. 24
1.54
202.8
314. 24
1.55
212.8
330. 24
1.55
1.8
194.4
336.96
1.73
204. 4
354.96
1.73
214.4
372.96
1.74
2.0
196.0
376.00
1.91
206.0
396.00
1.92
216.0
416.00
1.92
2.2 197.6
415. 36
2. 10
207.6
437.36
2.10
217.6
459.36
2.11
2.4 199.2
455. 04
2. 28
209.2
479.04
2.28
219. 2
503.04
2.29
2.6
200.8
495.04
2.46
210.8
521.04
2.46
220.8
547.04
2. 47
2.8
202.4
535. 36
2.64
212.4
563.36
2.64
222.4
591.36
2.65
3.0
204. 0
576.00
2.81
214.0
606.00
2.82
224.0
636.00
2.83
3.2
205. 6
616.96
2.99
215.6
648.96
3.00
225.6
680.96
3.01
3.4
207.2
658. 24
3. 16
217.2
692.24
3. 17
227.2
726. 24
3. 18
3.6
208.8
699.84
3.34
218.8
735.84
3.35
228.8
771.84
3.36
8.8
210. 4
741.76
3. 51
220.4
779.76
3.52
230. 4
817.76
3.53
4.0
212.0
784.00
3.68
222.0
824.00
3.70
232.0
864.00
3. 71
4.2
213.6
826.56
3.85
223. 6
868.56
3.87
233.6
910. 56
3.88
4.4
215.2
869. 44
4.02
225.2
913. 44
4.04
235. 2
957.44
4.05
4. 6
216.8
912.64
4. 19
226.8
958, 64
4. 21
236.8 1,004. 64
4. 22
4.8
218. 4
956. 16
4.35
228.4
1,004. 16
4. 37
238. 4Į 1, 052. 16
4.39
5.0
220. 0 1,000.00
4. 52
230.0 1,050.00
4.54
240.0❘ 1, 100. 00]
4.56
5.2
221. 6 1,044. 16
4.68
231.6 1,096. 16
4. 71
241. 6 1, 148. 16
4. 73
5.4
223.2 1,088. 64
4.85
233. 21, 142. 64
4.87
243. 2
1, 196. 64
4.89
5.6
224.8 1, 133. 44
5.01
234.8 1, 189. 44
5.04
244.8
1, 245. 44
5.06
5.8
226.4 1, 178. 56
5. 17
236. 4| 1, 236. 56
5. 20
246. 4
1, 294. 56
5. 22
6.0
228. 0 1,224. 00
5.33
238.0 1, 284. 00
5. 36
248. 0
1, 344. 00
5. 39
6.2
229.6 1, 269. 76
5. 49
239.6 1, 331. 76
5.52
249.6
1, 393. 76
5.55
6.1
231.2 1, 315. 84
5. 65
241. 2 1, 379. 84
5.68
251. 2
1, 443. 84
5. 71
6.6
232.8 1, 362. 24
5.81
242.8 1, 428. 24
5.84
252.8 1, 494. 24
5.87
6.8
234. 41, 408. 96
5.97
244. 4| 1, 476. 96
6.00
254. 4 1, 544. 96
6.03
7.0
236.0 1, 456. 00
6. 12
246.0 1,526. 00
6. 16
256.0
1, 596. 00
6. 19
7.5
240.0 1,575. 00
6. 51
250.0 1,650.00
6. 55
260. 0
1,725. 00
6.59
8.0
244.0 1,696.00
6.90
254.0 1,776. 00
6.94
264. 0
1,856. 00
6.98
8.5
248.0 1,819. 00|
7.27
258.01, 904. 00
7.32
268.0 1, 989. 00
7.36
9.0
252.0 1, 944. 00
7.65
262.0 2,034. 00
7.70
272.0 2, 124. 00
7.75
9.5
256.0 2,071.00
8.02
266. 0 2, 166. 00
8.07
276.0 2, 261. 00
8. 12
10.0
260.0 2,200.00
8.38
270.0 2,300. 00
8.44
280.0 2,400.00
8.50
10.5
8.87
264.0 2, 331.00
284. 0 2, 541. 00
8.74 274.0 2,436. 00
8.81
HYDRAULIC TABLES
251
T, and
feet, T,
Table 14.-Area in square feet, A, top width in feet,
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1—Continued

Bottom width
2 feet
Bottom width
3 feet
Bottom width
4 feet
Bottom width
5 feet
Depth
T
A
T
A
T T
A
T
A
ཤ
T
11 90.0
506.00 5.46 91.0
12
98.0
600.00 5.94 99.0
702.00 6.43 107. 0
812.00 6.91 115.0
517.00 5.52 92.0
612. 00 6.00 100. 0
715.00 6.49|108. 0
826.00] 6.97|116.0]
528.00 5.58 93.0
624.00 6.06 101. 0
728.00 6.55 109. 0
840.00 7.03 117.0
539.00 5.63
636.00 6.12
741.00 6.60
854.00 7.09
7.46 124. 0
7.94 132. 0
8. 43 140.0
8.91 148. 0
9. 40|156.0
960.00
1,088.00
1,224.00
975.00 7.58
1, 368. 00
1, 520.00
13 106. 0
14 114.0
15122.0 930.00
16 130. 01, 056.00
17138. 01, 190.00
18 146. 01, 332.00
19 154. 01, 482. 00
945.00
7.40|123. 0|
7.88 131. 01, 072. 00
8.37 139. 01, 207. 00
8. 85 147. 01, 350. 00
9. 34|155. 01, 501. 00|
20 162. 01, 640.00 9.82 163. 01, 660. 00 9.89 164. 0
21170. 01, 806. 00 10. 31 171. 01, 827. 00 10. 37 172.0
22 178. 01, 980. 00 10. 80 179. 02, 002. 00 10. 86 180. 0
23 186. 02, 162. 00 11. 28 187. 02, 185. 00 11. 34 188. 0
24 194. 02, 352. 00 11. 77 195. 02, 376. 00 11. 83 196. 0
25 202. 02, 550. 00 12. 25203. 02, 575. 00 12. 31 204. 0
26 210. 02, 756. 00 12. 74 211. 02, 782. 00 12. 80 212.0
27 218. 02, 970. 00 13. 22 219. 02, 997. 00 13. 28220. 0
28226. 03, 192. 00 13. 71 227. 03, 220.00 13. 77 228. 0
29 234. 03, 422. 00 14. 19|235. 03, 451. 00 14. 25|236. 0
30 242. 03, 660. 00|14. 68|243. 03, 690. 00 14. 74244.0
31 250. 03, 906. 00 15. 16 251. 03, 937. 00 15. 22 252.0
32 258. 04, 160. 00|15. 65 259. 04, 192. 00 15. 71260. 0
33 266. 04, 422. 00 16. 13 267. 04, 455. 00 16. 19 268. 0
34 274. 04, 692. 00 16. 62 275. 04, 726. 00 16. 68 276. 0
35 282. 04, 970. 00 17. 10 283. 05, 005. 00 17. 16 284. 0
36 290. 05, 256. 00|17. 59|291. 05, 292. 00|17. 65 292. 0
37 298. 05, 550. 00|18. 07|299. 05, 587. 00 18. 13 300.0
38 306. 05, 852. 00 18. 56307. 05, 890. 00 18. 62|308. 0|
39 314. 06, 162. 00 19. 04 315. 06, 201. 00 19. 10 316. 0
40 322. 06, 480. 00 19. 53 323. 06, 520. 00 19. 59 324. 0
41 330. 06, 806. 00 20. 01|331. 0|6, 847. 00 20. 07|332.0
42 338. 07, 140. 00 20. 50 339. 07, 182.00 20. 56 340.0
43 346. 07, 482. 00 20. 98 347. 0 7, 525. 00 21. 04348. 0
44 354. 07, 832, 00 21. 47|355. 07, 876. 00 21. 53 356. 0
45 362. 08, 190.00 21. 95 363. 08, 235. 00 22. 01364. 0
46 370. 08, 556. 00 22. 44 371. 08, 602. 00 22. 50 372.0
47 378. 08, 930. 00 22. 92379. 08, 977. 00 22. 98 380.0
48 386. 09, 312. 00 23. 41 387. 09, 360. 00 23. 47 388. 0
49 394. 09, 702. 00 23. 89 395. 09, 751. 00 23. 95 396. 0
7.52 125. 0
8.00 133. 0
8. 49 141.0
8.97 149. 0
9.46 157.0
1,680.00 9.95 165.0
1,848. 00 10. 43 173. 0
2, 024.00 10. 92 181. 0
2, 208. 00 11. 40 189. 0
2, 400. 00|11. 89 197. 0
2, 600.00 12. 37 205. 0
2,808. 00 12. 86 213. 0
3, 024. 00 13. 34 221. 0
3, 248.00 13. 83 229. 0
3, 480. 00 14. 31237. 0
3,720.00 14. 80|245. 0|
3, 968. 00 15. 28 253. 0
4, 224. 00 15. 77|261. 0
4, 488. 0016. 25 269. 0
4, 760. 00 16. 74 277. 0
8.06
8.55
1, 104. 00
1,241. 00
1, 386.00 9.03
1, 539. 00| 9. 52
1,700.00 10. 00
1, 869. 00 10. 49
2,046. 00 10. 98
2, 231. 00 11. 46
2, 424. 00 11. 95
2, 625.00 12. 43
2, 834.00 12. 92
3, 051.00 13. 40
3, 276. 00 13. 89
3, 509. 00 14. 37
3, 750. 00 14. 86
3,999.00 15. 34
4, 256. 00 15. 83
4, 521. 00 16. 31
4, 794. 00 16. 80
6, 600.00 19. 71
6, 929. 00 20. 20
7, 266. 00 20. 68
7, 611.00 21. 17
7, 964. 00|21, 65
5, 040. 00 17. 22 285. 05, 075. 00 17. 28
5, 328. 00 17. 71|293. 0|| 5, 364. 00 17. 77
5, 624. 00 18. 19|301. 0 5, 661. 00 18. 25
5, 928. 00|18. 68 309. 0 5,966. 00|18. 74
6, 240. 00 19. 16317. 0 6, 279. 00 19.23
6, 560. 00 19. 65 325. 0
6, 888. 0020. 13|333. 0|
7, 224. 00 20. 62 341. 0
7, 568. 0021. 11|349. 0
7, 920.00 21. 59|357. 0
8, 280. 00 22. 08|365. 0
8, 648. 00 22. 56 373.0
9, 024. 00 23. 05 381. 0
9, 408. 00 23. 53 389. 0
9, 800.00 24. 02397.0
8, 325. 00 22. 14
8, 694. 00 22. 62
9, 071. 00 23. 11
9, 456. 00 23. 59
9, 849. 00 24. 08
404. 010, 200.00 24.50 50 402. 0 10,100.00 24. 38403. 0 10,150.00 24. 44 4/404
50/40
405. 010, 250.00 24. 56
252
HYDRAULIC TABLES
in
in feet,
Table 14.-Area in square feet, A, top width
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued
T, and

Bottom width Bottom width
6 feet
7 feet
Bottom width
8 feet
Bottom width
9 feet
Depth
T
A
T
ཌ-
Τ
A
T
A
T
A
T
11 94.0
12 102.0
13 110.0
14 118.0
550.00 5.69 95.0
648.00 6.17103.0
754.00 6.66111.0
868.00 7.15 119.0
561.00 5.74 96.0
660.00 6.23|104. 0
767.00 6.72 112.0
882.00 7.20 120.0
572.00 5.79 97.0
672.00 6.28 105.0
780.00 6.77 113.0
896.00 7.26 121.0
583.00 5.85
684.00 6.34
793.00 6.82
910.00 7.31
15 126.0 990.00
16 134. 01, 120.00
17 142. 01, 258.00
18 150. 01, 404.00
19 158.01, 558.00
7.63 127.01, 005.00
8.12135. 0[1, 136. 00|
8.61 143. 01, 275.00
9.09 151. 01, 422.00
9. 58 159. 01, 577.00
7.69 128.0
8. 18136.0
8.66 144.0
9.15 152.0
9.63 160.0
20 166. 01, 720.00 10.06 167. 01, 740. 00 10. 12 168.0
21174. 01, 890. 00|10. 55₤175. 01, 911. 00 10. 61 176.0
22 182. 02, 068. 00 11.03 183. 02, 090.00 11.09 184.0
23 190.02, 254. 00|11. 52|191. 0|2, 277. 00 11.58192.0
24 198. 02, 448. 00 12. 01 199. 02, 472. 00 12.06 200.0
25 206. 02, 650.00 12. 49 207. 02, 675.00 12.55 208.0
26 214. 02, 860.00 12. 98 215. 02, 886. 00 13.04 216.0
27 222. 03, 078. 00 13. 46|223. 03, 105. 00 13. 52 224. 0
28 230.03, 304. 00 13. 95 231. 03, 332. 00 14.01 232.0
29 238.03, 538. 00|14. 43|239. 0/3, 567. 00₤14. 49|240. 0|
30 246.03, 780. 00 14. 92 247. 03, 810.00 14.98 248.0
31 254. 04, 030. 00|15. 40|255. 04, 061.00 15. 46256.0
32 262. 04, 288.00 15. 89 263. 0 4, 320. 00 15. 95 264. 0
33 270.04, 554. 00 16. 37 271. 04, 587.00 16. 43 272.0
34 278.04, 828.00 16. 86 279. 04, 862. 00|16.92 280.0
35 286.05, 110. 00 17. 34 287.05, 145. 00 17.40 288.0
36 294. 05, 400. 00|17. 83 295. 0[5, 436. 00₤17.89₤296.0
37 302. 05, 698. 00 18. 32 303. 05, 735.00 18. 37304.0
38 310.06, 004. 00 18. 80 311. C|6, 042.00 18. 86 312.0
39 318. 06, 318. 00 19. 29 319. 06, 357.00 19. 35 320. 0
1,020.00 7.75 129.0
1, 152.00 8. 23 137.0
1,292.00 8. 72|145. 0
1,440.00 9.21 153.0
1, 596.00 9. 69 161.0
1,760.00 10. 18/169. 0
1,035.00 7.80
1, 168.00 8.29
1, 309.00 8.77
1, 458. 00 9. 26
1, 615.00 9.75
1,780.00 10.23
1,932.00 10.66|177.0) 1,953. 00|10. 72
2, 112.00 11. 15 185.0 2, 134.00 11. 21
2,300.00 11.64|193.0| |2, 323. 00 11. 69
2, 496.00 12. 12 201.0 2, 520.00 12. 18
2, 700.00 12. 61 209.0
2, 912.00 13.09 217.0
3, 132.00 13. 58 225. 0
3, 360.00 14. 06 233.0
3, 596. 00|14. 55|241.0
3,840.00 15.04|249. 0
4,092.00|15. 52|257.0
4, 352.00 16. 01265. 0
4,620.00 16.49273.0
4, 896. 00|16. 98|281.0
5, 180.00 17.46 289.0
5, 472.00 17.95 297.0
5, 772.00 18. 431305. 0
6,080.00 18. 92313. 0
6, 396. 00 19. 41 321.0
2,725.00 12.67
2, 938.00 13. 15
3, 159. 00 13. 64
3, 388.00 14. 12
3,625.00 14.61
3,870.00 15.09
4,123.00 15, 58
4, 384.00 16.07
4, 653.00 16.55
4,930.00 17. 04
5, 215.00 17.52
5,508. 00 18.01
5,809.00 18. 49
6, 118.00 18. 98
6, 435.00 19.46
40 326.06, 640. 00 19. 77 327.06, 680.00 19.83 328. 0 6, 720.00 19.89329.0 6, 760.00 19.95
41 334.06, 970. 00|20. 26|335. 07, 011. 00|20.32|336.0||
42 342. 07, 308.00 20. 74343. 07, 350.00 20.80 344.0
43 350. 07, 654.00 21. 23|351. 0 7, 697. 00 21. 29|352. 0|
44 358. 08, 008. 00 21. 71 359. 08, 052. 00 21. 77360.0
7,052.00|20. 38|337.0|| 7,093. 00 20. 44
7, 392.00 20. 86 345.0 7, 434.00 20.92
7, 740. 00 21. 35|353.0|| 7, 783.00 21. 41
8,096.00 21. 83361.0 8, 140.00 21.89
45 366.08, 370.00 22. 20 367. 08, 415. 00 22. 26368.0 8, 460.00 22. 32|369.0 8, 505.00 22. 38
46 374. 08, 740. 00 22. 68 375. 08, 786. 00 22. 74376.0 8,832.00 22.80 377.0 8, 878.00 22.86
47 382. 09, 118. 00 23. 17383. 09, 165.00 23. 23384.0 9, 212.00 23. 29385.0 9, 259.00 23. 35
48 390. 09, 504.00 23. 65 391. 09, 552. 00 23. 71 392. 0 9, 600.00 23. 77393.0 9, 648.00 23.83
49 398.09, 898. 00|24. 14|399. 09, 947. 00|24. 20400.0 9, 996. 00 24. 26:401. 010, 045. 00 24. 32
50 406. 0 10,300.00 24. 62 407. 0 10,350.00 24. 68 408. 0 10, 400. 00 24. 74 409. 010, 450.00 24.80
0|10,300
00 62/40
24.
010,350.00
010, HYDRAULIC TABLES
253
Table 14.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
11
Bottom width
10 feet
Bottom width
12 feet
Bottom width
14 feet
Bottom width
16 feet
T
A
T
T
A
T T
A
T
T
A
616.00 6.00 102. 0
720.00 6.49 110.0
832.00 6.98118. 0
952.00| 7.47|126. 0|
638.00 6.09 104. 0
744.00 6.59112. 0
858.00 7.08120.0
980.00 7.57 128. 0
660.00 6.19
768.00 6,68
884.00 7.18
1,008.00 7.67
98.0
12 106. 0
13 114. 0
14122.0
594.00 5.90₤100.0|
696.00 6.39 108.0
806.00 6.88 116. 0
924.00 7.37 124.0
15 130. 01, 050. 00 7.85 132. 01, 080. 00
16 138. 01, 184. 00 8. 34/140. 01, 216. 00
17 146. 01, 326. 00 8.83 148. 01, 360. 00
18 154.01, 476.00 9.32 156. 01, 512.00
19 162. 01, 634.00] 9.80|164. 0|1, 672. 00|
7.96 134. 0
8. 45142. 0
8.94 150.0
9.42 158.0
9.91|166. 0|
1, 110. 00 8. 06 136. 0
1, 248. 00 8. 55 144. 0
1, 394. 00 9. 04152. 0
1, 548. 00 9. 53 160. 0
1, 710.00 10. 02/168. 0|
1, 140.00 8. 16
1, 280. 00 8.65
1,428. 00 9. 14
1, 584.00 9.63
1, 748. 00 10. 12
1,920. 00 10. 61
2, 100. 0011. 10
2, 288.00 11.59
2, 484. 00 12. 08
2, 688.00 12. 57
2,900.00 13. 05
3, 120. 00 13. 54
3, 348. 00₤14. 03
3, 584. 00 14. 52
3, 828. 00 15. 00
1, 880. 0010. 51 176. 0
2,058. 0011. 00 184. 0
2, 244. 00 11. 48 192. 0
2, 438. 00[11. 97/200. 0
2, 640. 00 12. 46208. 0
2,850.00 12. 95 216. 0
3,068. 00 13. 43224. 0
3, 294. 00|13. 92|232. 0
3, 528. 00|14. 41|240. 0
3, 770. 0014. 89 248.0
4, 020. 00 15. 38 256. 0 4, 080. 00 15. 49
4, 278.00 15. 87 264. 0 4, 340. 0015. 98
4, 544. 00 16. 35 272. 0 4, 608. 00 16.46
4, 818. 0016. 84280. 0 4, 884. 00|16. 95
5, 100.00 17. 33288. 05, 168.00 17.44
5,390. 00 17.81 296. 0 5, 460. 00 17.92
5,688.00 18. 30304. 0 5, 760. 0018. 41
5, 994. 00 18. 78 312. 0 6, 068. 0018. 90
6,308. 00 19. 27 320. 0 6, 384. 00 19. 38
6, 630.00 19. 76 328. 0 6, 708. 0019.87
6,960.00 20. 24 336. 0
7, 298. 0020. 73344. 0
7, 644.00 21. 21 352. 0
7, 998. 00 21. 70 360. 0
8, 360. 00 22. 18368. 0
20170. 01, 800.00 10. 29 172. 01, 840. 00 10. 40 174. 0
21178. 01, 974. 00 10. 78 180. 02, 016. 00 10. 89|182. 0
22 186. 02, 156. 00 11. 26 188. 02, 200. 00 11. 37 190. 0
23 194. 02, 346. 00 11. 75 196. 02, 392. 00|11. 86₤198. 0|
24 | 202. 02, 544. 00 12. 24 204. 02, 592.00 12. 35 206. 0
25 210.0 2,750. 00 12. 72 212. 02, 800.00 12. 83 214. 0
26 218. 02, 964. 00 13. 21 220. 03, 016. 00 13. 32 222.0
27 226. 03, 186. 00 13. 69 228. 03, 240. 00 13. 81 230. 0
28 234. 03, 416. 00 14. 18 236. 03, 472. 00 14. 29 238.0
29 242. 03, 654. 00|14. 67|244. 03, 712. 0014. 78 246,0
30 250.03, 900.00 15. 15252. 03, 960. 00 15. 27254. 0
31 258. 04, 154. 00 15. 64 260. 04, 216. 0015. 75262. 0
32 266.04, 416. 00 16. 12 268. 04, 480. 00 16. 24 270. 0
33 274. 04, 686. 00 16. 61 276. 0 4, 752. 00 16. 73₤278. 0
34 282. 04, 964. 00 17. 10 284. 05, 032. 00 17. 21 286. 0
35 290.05, 250.00 17. 58 292. 05, 320. 00 17. 70 294. 0
36 298. 05, 544. 00 18. 07 300.05, 616. 00 18. 18302. 0
37 306. 05, 846. 00 18. 55 308. 05, 920. 00 18. 67 310. 0
38 314. 06, 156. 00 19. 04 316. 06, 232. 00 19. 15 318. 0
39 322. 06, 474. 00 19. 52 324. 06, 552.00 19. 64 326. 0
40 330. 06, 800. 00 20. 01|332. 06, 880. 00 20. 13 334. 0
41 338. 07, 134. 00 20. 49 340. 07, 216. 00|20. 61342. 0|
42 346. 07, 476. 00 20. 98|348. 07, 560. 0021. 10/350. 0|
43 354. 07, 826. 00 21. 47 356. 07, 912. 00 21. 58358. 0
44 362. 08, 184. 00 21. 95 364. 08, 272. 00 22. 07|366.0
45 370.08, 550.00 22. 44 372. 08, 640. 00 22. 55374.0 8, 730. 00|22. 67|376. 0
46 378. 08, 924. 00 22. 92,380. 09, 016. 00 23.04382.0 9, 108. 00 23. 16384. 0
47 386. 09, 306. 00 23. 41|388. 09, 400. 00 23. 53|390.0 9, 494. 00|23. 64₤392.0
48 394. 09, 696. 00 23. 89396. 09, 792. 00 24. 01398. 0| 9, SS8. 0024. 13400.0
49 402. 0 10,094.00 24. 38404. 0 10,192.00 24. 50 406. 0 10, 290.00 24. 61 408. 0 10, 388. 00 24. 73
7,040. 0020. 36
7, 380. 0020. 84
7, 728. 0021. 33
8, 084. 0021.81
8, 448. 00 22.30
8, 820. 0022. 79
9, 200. 00 23. 27
9, 588. 00 23. 76
9, 984. 00 24. 24
50 410.0 10,500.00 24. 86412. 0 10,600.00 24. 98414. 010, 700.00 25. 10416. 010, 800. 00 25. 22
002
254
HYDRAULIC TABLES
Table 14.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
Bottom width
18 feet
Bottom width
20 feet
Bottom width
22 feet
Bottom width
24 feet
T
A
↑
T
A
T
T
A
T
T
A
↑
704.00 6.36 110. 0
816.00
6.86 118. 0
936.00
7.36 126.0
7.76|132. 01, 064. 00
7.86134. 0
1,092.00
726.00 6.44112. 0
840.00 6.94 120.0
962.00 7.45128. 0
7.94|136. 0
748.00 6.52
864.00 7.03
988.00 7.53
1, 120.00 8.03
1, 230. 00
1, 376. 00
1, 530.00
1,692. 00
1, 862. 00
11 106.0 682.00 6.27 108.0
12 114.0 792.00 6.77116.0
13 122.0 910.00 7.27 124.0
14 130. 01, 036.00|
15 138. 01, 170.00
16 146. 01, 312.00
17 154. 01, 462. 00|
18 162. 01, 620.00
19 170. 01, 786. 00
8.26 140. 01, 200.00
8.75 148. 01, 344. 00
9. 24|156. 01, 496. 00
9.73 164. 01, 656. 00
10. 22 172. 01, 824. 00
8. 35142. 0
8.85 150. 0
9. 34|158. 0
9.83 166. 0
10. 32 174. 0
20 178. 01, 960. 00 10. 71 180. 02, 000. 00 10. 82|182. 0
21 186. 02, 142. 00 11. 20188. 02, 184. 00 11. 31190. 0
22 194. 02, 332. 00 11. 69 196. 02, 376. 00 11. 80198. 0
23 202. 02, 530. 00 12. 18204. 02, 576. 00 12. 29 206.0
24 210.02, 736. 00 12. 67 212. 02, 784. 00 12. 78 214.0
8. 44 144. 0
8. 94 152.0
9.43|160. 0||
9.93168.0
10. 42 176. 0
2,040. 00 10. 91 184.0
2, 226. 00 11. 41192. 0
2, 420.00 11. 90 200. 0
2, 622.00 12. 39 208.0
2,832.00 12. 88 216. 0
25 218. 02, 950.00 13. 16 220. 03, 000. 00 13. 27 222. 0 3,050.00 13. 37 224. 0
26 226. 03, 172.00 13. 65 228. 03, 224. 00 13. 75,230. 0 3, 276. 00 13. 86 232. 0
27 234.03, 402. 00 14. 14 236. 03, 456. 00 14. 24 238. 0 3, 510. 00 14. 35 240.0
28 242. 03, 640. 00 14. 62 244. 03, 696. 00 14. 73246. 0 3, 752. 00 14. 84 248. 0
29 250.03, 886. 00|15. 11₤252. 0|3, 944. 00₤15. 22254. 0 4, 002. 00|15. 33|256.0
30 258. 04, 140.00 15. 60 260. 04, 200. 00 15. 71 262. 0 4, 260. 00 15. 81|264. 0
31 266.04, 402. 00|16. 09/268. 04, 464. 00|16. 20|270. 0 4, 526. 00 16. 30|272.0
32 274. 04, 672. 00 16. 57 276.04, 736. 00|16. 68|278. 0 4, 800.00 16. 79 280. 0
33 282.04, 950.00 17. 06 284. 05, 016. 00 17. 17286. 05, 082. 00 17. 28 288. 0
34 290.05, 236.00 17. 55 292. 05, 304. 0017. 66 294. 05, 372. 00 17. 77 296. 0
35 298.05, 530. 0018. 04 300. 05, 600. 00 18. 15 302. 0
36 306. 05, 832, 0018. 52308. 05, 904. 00 18. 63310.0
37 314.06, 142. 00 19. 01316. 06, 216. 00 19. 12318. 0
38322. 06, 460. 00₤19. 50|324. 06, 536. 00|19. 61|326. 0||
39 330.06, 786. 00 19. 98 332. 06, 864. 00 20. 09334. 0
40 338.07, 120.00 20. 47340. 07, 200. 0020. 58342. 0
41 346. 07, 462. 00 20. 96 348. 07, 544. 00 21.07350.0
42 354. 07, 812. 00 21. 44356. 07, 896. 00 21. 55 358. 0
43 362. 08, 170.00 21. 93|364. 08, 256. 00|22. 04 366.0
44 370. 08, 536. 00|22. 41|372. 08, 624. 00/22. 53|374. 0
5, 670.00 18. 25 304. 0
5,976.00 18. 74312. 0
6, 290.00 19. 23320. 0
6, 612. 00 19. 72 328. 0|
6, 942. 00 20. 20 336. 0
7, 280. 00 20. 69 344. 0
7, 626. 00 21. 18352. 0
7, 980.00 21. 66 360.0
8, 342. 00 22. 15|368. 0|
8, 712. 00 22. 64 376. 0
1, 260.00 8.53
1, 408. 00 9.03
1, 564.00 9.53
1,728.00 10. 02
1, 900.00 10.52
2,080.00 11. 01
2, 268. 0011. 50
2, 464.00 12. 00
2,668.00 12. 49
2,880.00 12.98
3, 100.00 13. 47
3, 328.00 13. 96
3, 564.00 14. 45
3, 808. 00 14. 94
4,060.00 15. 43
4, 320.00 15. 92
4, 588. 00|16. 41
4, 864.00 16. 90
5, 148. 00 17. 38
5, 440.00 17.87
5, 740. 0018. 36
6,048.00 18. 85
6, 364. 00 19. 34
6, 688.00|19. 82
7,020.00 20. 31
7, 360.00 20.80
7, 708. 00 21. 29
8, 064.00 21. 77
8,428. 0022. 26
8, 800.00 22. 75
9, 180.00 23. 24
9, 568. 0023, 72
9, 964.00 24. 21
45 378.08, 910, 00|22. 90|380. 09, 000. 00|23. 01|382.0|| 9, 090. 00 23. 13₤384.0
46 386. 09, 292. 00 23. 39388. 09, 384. 0023. 50 390.0 9, 476. 00 23. 61 392. 0
47 394. 09, 682. 00 23. 87 396. 09, 776. 00 23. 99 398. 0 9, 870. 00 24. 10 400. 0
48 402. 0 10,080.00 24. 36404. 0 10,176.00 24. 47406. 010, 272. 00 24. 58 408. 010, 368.00 24. 70
49 410.0 10,486.00|24. 84|412. 0 10,584.00|24. 96|414. 0|10, 682. 00|25. 07₤416. 0|10, 780. 00|25, 18
10,900.00 25. 33 420. 10,900 33 50 418. 0 420
0|011,000.00 25. 44 422. 011, 100. 00 25. 56 424. 011, 200.00 25. 67
HYDRAULIC TABLES
255
Table 14.—Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
26 feet
Bottom width
28 feet
Bottom width
30 feet
Bottom width
32 feet
Depth
T
A
T
T
A
T
A
g
T
A
་
T
792.00
912.00
11 114.0
12 122.0 888.00
13 130. 01, 014. 00
14 138. 01, 148. 00
770.00 6.60|116. 0
7.11 124. 0
7. 61 132. 01, 040. 00
8. 12140. 01, 176. 00
15 146.01, 290.00
16 154. 01, 440. 00
17 162.01, 598. 00
18 170. 01, 764. 00
6.67 118.0 814.00
7.18 126. 0 936.00
7.69 134. 01, 066. 00
8. 20142. 01, 204. 00
8.70 150. 01, 350. 00
9. 20 158.01, 504. 00
9.70 166. 01, 666. 00
10. 20174. 01, 836. 00
8.62 148. 01, 320.00
9.12 156. 01, 472. 00
9.62 164. 01, 632. 00
10. 11 172. 01, 800. 00
19 178.01, 938. 00 10. 61 180. 01, 976. 00 10. 70 182. 02, 014. 00
6. 74|120.0 836.00 6.81
7.26 128.0 960.00 7.33
7.77 136. 01, 092.00 7.84
8. 28 144. 01, 232.00 8.36
8.78 152. 01, 380. 00 8.86
9.29 160. 01, 536. 00 9.37
9.79 168. 01, 700.00 9.87
10. 29 176. 01, 872.00 10.38
10. 79 184. 02, 052.00 10.88
20 186. 02, 120. 00 11. 10 188. 02, 160. 00 11. 20 190. 02, 200.00 11. 29 192. 02, 240. 00 11.37
21 194. 02, 310. 00 11. 60 196. 02, 352. 00 11.69 198. 02, 394. 00 11. 78 200. 02, 436.00 11.87
22 202. 02, 508. 00/12. 09|204. 02, 552. 00 12. 19 206. 02, 596. 00 12. 28208. 02, 640. 00|12. 37
23 210. 02, 714. 00 12. 58 212. 02, 760. 00 12. 68 214. 02, 806. 00 12. 77 216. 02, 852.00 12.87
24 218. 02, 928. 00 13. 08 220. 02, 976. 00 13. 17 222. 03, 024. 00 13. 27224. 03, 072. 00 13. 36
25 226. 03, 150.00 13. 57 228. 03, 200. 00 13. 67 230. 03, 250.00 13. 76 232. 03, 300.00 13.86
26 234. 03, 380.00 14. 06 236. 03, 432. 00 14. 16 238. 03, 484. 00 14. 26 240. 03, 536. 00 14. 35
27 242.03, 618. 00 14. 55 244. 03, 672. 00 14. 65 246. 03, 726. 00 14. 75 248. 03, 780. 00 14.84
28 250.03, 864. 00|15. 04/252. 03, 920. 00|15. 14 254. 03, 976. 00|15. 24|256. 04, 032. 00 15. 34
29 258.04, 118. 00|15. 53|260. 04, 176. 00 15. 63|262. 04, 234. 00 15. 73 264. 04, 292. 00 15.83
30 266.04, 380.00 16. 02|268. 04, 440. 00|16. 12 270. 04, 500. 00|16. 22|272. 04, 560. 00|16. 32
31 274. 04, 650. 00|16. 51|276. 0 4, 712. 00|16. 61 278. 04, 774. 00 16. 71 280. 04, 836. 00₤16. 81
32 282.04, 928. 00 17.00 284. 04, 992. 00 17. 10 236. 05, 056. 00 17. 20 288. 05, 120. 00 17.30
33 290. 05, 214. 00 17. 49 292. 05, 280. 00 17. 59 294. 05, 346. 00 17. 69 296. 05, 412. 00 17.80
34 298.05, 508. 00 17. 98 300. 05, 576. 00 18. 08302. 05, 644. 00 18. 18 304. 05, 712.00 18. 29
35 306. 05, 810.00 18. 47 308. 05, 880. 00 18. 57 310. 05, 950.00 18. 67 312. 06, 020. 00 18.78
36 314. 06, 120. 00|18. 96316. 06, 192. 00 19. 06 318. 06, 264. 0019. 16|320. 0|6, 336. 00|19. 27
37 322. 06, 438. 00 19. 44324. 06, 512. 00 19. 55 326. 06, 586. 00|19. 65|328. 06, 660. 0019. 76
38 330. 06, 764. 00 19. 93 332. 06, 840. 00|20. 04|334. 06, 916. 00 20. 14|336. 0|6, 992. 00|20. 25
39 338.07,098. 00 20. 42|340. 07, 176. 00 20. 53 342. 07, 254. 00|20. 63|344. 07, 332. 00 20. 74
40 346. 07, 440. 00 20. 91 348. 0 7, 520. 00 21. 01 350. 07, 600. 00 21. 12 352. 07, 680.00 21. 22
41 354. 07, 790.00 21. 40 356. 07, 872. 00 21. 50 358. 07, 954. 00 21. 61 360. 08, 036.00 21.71
42 362. 08, 148. 00 21. 88 364. 08, 232. 00 21. 99 366. 08, 316. 00 22. 10 368. 08, 400. 00 22.20
43 370. 08, 514. 00 22. 37 372. 08, 600. 00|22. 48|374. 08, 686. 00 22. 59|376. 08, 772. 00|22. 69
44 378. 08, 888. 00 22. 86|380. 08, 976. 00 22. 97 382. 09, 064. 00 23. 07|384. 0|9, 152. 00 23. 18
45 386.09, 270.00 23. 35388.09, 360. 00 23. 45₤390. 0|9, 450. 00 23. 56392 09, 540.00 23. 67
46 394. 09, 660. 00 23. 83 396. 09, 752. 00 23.94 398. 09. 844. 00 24. 05/400. 09, 936. 00 24. 16
47 402. 0 10,058.00 24. 32 404. 0 10,152.00 24. 43 406. 0 10,246.00 24. 54 408. 0 10,340.00 24. 64
48 410. 0 10,464.00 24. 81 412. 0 10,560.00 24. 92 414. 0 10,656.00 25. 02 416. 010,752.00 25. 13
49 418. 0 10,878.00 25. 29 420. 0 10,976.00 25. 40 422. 011,074.00 25. 51|424. 011,172.00 25.62
11,500.00 50 426.0 11,300.00 25. 78 428. 0 11,400.00 25. 89 430. 0 11,50
|26. 00 432. 011,600.00 26. 11
256
HYDRAULIC TABLES
Table 14.-Area in square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
Bottom width
35 feet
Bottom width
40 feet
Bottom width
45 feet
Bottom width
50 feet
T
A
Τ
Τ
A
Τ
T
A
T
A
7
7.07133.0
7.60 141.0
8. 12149. 0
8. 65157.0
1, 116.00
1, 261. 00
1,414. 00
1, 176.00 7.90
8. 29 154. 0
8. 81 162.0
11 123.0 869.00
12 131.0 996.00
13 139. 01, 131.00
14 147.01, 274.00
6.91 128.0 924.00
7.44 136. 01, 056. 00
7.95 144. 01, 196. 00
8. 47 152. 01, 344. 00
15 155. 01, 425.00 8.98 160. 01, 500. 00 9. 16 165. 0
16 163. 01, 584.00 9.49 168. 01, 664. 00 9.68 173.0
17 171.01, 751.00 10.00 176. 01, 836. 00 10. 19 181.0
18 179. 01, 926. 00 10. 50 184. 02, 016. 00 10. 70 189.0
19 187.02, 109.00 11.00 192. 02, 204. 00 11. 21 197.0
979.00 7.21138.0 1,034.00 7.35
7.75 146.0
1,575.00 9.34 170. 0
1,744. 00 9.86 178.0
1, 921.00 10. 37 186.0
2, 106. 00 10. 89 194.0
2,299.00 11. 40 202. 0
2,500.00 11.91 210.0
2, 709.00 12. 42 218. 0
2, 926.00 12. 92 226. 0
3,151.00 13. 43|234.0
3, 384. 00 13. 93 242. 0
3,625.00 14. 43 250.0
3, 874. 00 14. 93 258. 0
4, 131.00 15. 43 266. 0
4, 396. 00|15. 93|274.0
4, 669.00 16. 43282. 0
20 195. 02, 300.00 11. 50 200. 02, 400.00 11.71 205. 0
21 203.02, 499.00 12. 00 208. 02, 604. 00 12. 22213.0
22211.02, 706. 00 12. 50 216. 02, 816. 00 12. 72 221.0
23 219. 02, 921.00 13.00 224. 03, 036. 00 13. 22 229.0
24 227.03, 144. 00 13. 50 232. 03, 264. 00|13. 72|237. 0]
25 235.03, 375.00 14.00 240. 0|3, 500. 00|14. 22|245. 0
26 243. 03, 614. 00 14. 49 248. 03, 744. 00 14. 72 253. 0
27251.03, 861.00 14. 99 256. 03, 996. 00 15. 21 261. 0
28 259.04, 116.00 15. 48 264. 04, 256. 00 15. 71 269. 0
29 267.04, 379.00 15.97 272. 04, 524. 00 16. 21 277.0
30 275.04, 650.00 16. 47 280. 04, 800. 00 16. 70|285.0|| 4,950.00 16. 93 290.0
31 283.04, 929.00 16. 96 288. 05, 084. 00 17. 20 293. 0 5, 239.00 17.43 298. 0
32 291. 05, 216.00 17. 45 296. 05, 376. 00 17.69 301.05, 536. 00 17. 92306. 0
33 299.05, 511. 00 17. 94 304. 05, 676. 00 18. 19309. 0
34 307.05, 814. 00 18. 44 312. 05, 984. 00 18. 68 317.0
35 315. 06, 125. 00 18. 93 320. 06, 300.00 19. 17 325. 0
36 323.06, 444. 00 19. 42 328. 06, 624. 00 19. 66333. 0
37331.06, 771.00 19. 91 336. 0|6, 956. 00|20. 16341.0
38 339.07, 106. 00 20. 40/344. 07, 296. 00 20. 65349.0
39 347.07, 449. 00 20. 89₤352. 07, 644. 00 21. 14357.0
40 355. 07, 800.00 21. 38 360. 08, 000. 00 21. 63 365.0
41 363. 08, 159.00 21. 87 368. 08, 364. 00 22. 12 373.0
42 371. 08, 526. 00 22. 36 376. 08, 736. 00 22. 61 381.0
43 379. 08, 901. 00 22. 85384. 09, 116. 00 23. 10 389.0
44 387. 09, 284.00 23. 34 392. 09, 504. 00 23. 59 397.0
5, 841.00 18. 42 314.0
6, 154.00 18. 91 322.0
6, 475.00 19. 41 330. 0
6, 804. 00 19. 90 338. 0
7, 141.00 20. 40 346.0
7, 486. 00 20.89354. 0
7,839.00 21. 38|362.0
1, 326.00 8.44
1, 484. 00 8.97
1, 650.00 9.50
1,824.00 10.03
2,006. 00 10. 55
2, 196.00 11.07
2, 394. 00 11. 58
2,600.00 12. 10
2,814. 00 12. 61
3,036. 00 13. 12
3, 266. 00 13.63
3, 504. 00 14. 13
3,750.00 14. 64
4, 004. 00 15. 14
4, 266.00 15. 65
4, 536.00 16. 15
4, 814. 0016. 65
5,100.00 17. 15
5, 394. 00 17. 65
5, 696.00 18. 15
6, 006.00 18. 64
6, 324. 00 19. 14
6,650.00 19.64
6, 984.00 20. 13
7, 326.00 20. 63
7, 676.00 21. 13
8,034.00 21. 62
8, 200.00 21. 88 370.0 8, 400.00 22. 11
8,569.00 22. 37 378. 0 8, 774.00 22. 61
8, 946. 0022. 86386. 0 9, 156.00 23. 10
9, 331.00 23. 35 394. 09, 546. 00 23. 59
9,724. 00 23. 84 402. 0 9, 944. 00 24.09
45 395. 09, 675.00 23. 83 400. 09, 900. 00 24. 08 405. 0 10, 125. 00 24. 33 410. 010, 350. 00 24.58
46 403. 0 10,074.00 24. 31408. 0 10,304.00 24. 57 413. 010, 534. 00 24. 83 418. 010, 764. 00 25. 07
47 411. 0 10,481.00 24. 80 416. 0 10,716.00 25. 06 421. 010, 951. 00 25. 32 426. 011, 186. 00 25. 56
48 419. 0 10,896.00j25. 29|424. 011,136.00 25. 55 429. 0 11, 376. 00 25. 81 434. 011, 616. 00 26. 06
49 427.0 11,319.00 25. 78 432. 0 11,564.00 26. 04437. 011, 809. 00 26. 30 442. 012, 054. 00 26. 55
50 435.0 11,750.00 26. 27 440.0 12.000.00 26. 53 53/448
445. 012, 250.00 26. 79 450.0 12,500.00 27.04
HYDRAULIC TABLES
257
Table 14.-Area in square feet,
feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
T
Α
T
Bottom width
60 feet
Bottom width
70 feet
Bottom width
80 feet
Bottom width
90 feet
રે
↑
T
A
↑
T
A
*
A
1, 364.00
1, 536. 00
1,716.00
1, 904. 00
7.59 158. 01, 254. 00
8. 15 166. 01, 416. 00
8.71|174. 0|1, 586. 00|
9. 26 182. 01, 764. 00
7.80 168. 0
8.38 176.0
8.95|184.0
9. 51192. 0
7.99 178. 0
8. 58 186. 0
9. 17|194. 0
9. 74 202. 0
2, 100.00 10. 31 210.0
2, 304.00 10. 87 218. 0
2, 516.00 11. 43 226. 0|
2, 736. 00|11. 98 234. 0
11 148. 01, 144.00
12 156. 01, 296.00
13 164. 01, 456.00
14 172. 01, 624.00
15 180.0 1,800. 00 9.80 190. 01, 950.00 10.07 200.0
16 188. 01, 984. 00 10. 34 198. 0[2, 144. 00 10. 62 208. 0
17 196. 02, 176.00 10.87 206. 02, 346. 00|11. 16₤216. 0|
18 204. 02, 376.00 11. 40 214. 02, 556. 00|11. 70|224. 0
19 212. 02, 584.00 11.93 222. 02, 774. 00 12. 24|232. 0||2, 964. 00 12. 52 242. 0
20 220.0 2,800.00 12. 45 230. 03, 000.00 12. 77 240.0
21 228. 03, 024. 00 12. 97 238. 03, 234. 00 13. 30 248. 0
22 236.03, 256. 00 13. 49 246. 03, 476. 00 13. 83 256.0
23 244.03, 496. 00 14. 00 254. 03, 726. 00 14. 35 264. 0
24 252. 03, 744. 00 14. 52 262. 03, 984. 00 14. 87 272. 0
25 260. 04, 000.00 15. 03 270. 04, 250.00 15. 39 280. 0
26 268. 04, 264. 00 15. 54 278. 04, 524. 00 15. 91 288. 0
27 276.04, 536.00 16. 05 286. 0 4, 806. 00 16. 42 296.0
28 284. 04, 816. 00 16. 56 294. 05, 096. 00 16. 94 304. 0
29 292.05, 104. 00 17.06 302. 05, 394. 00 17. 45312. 0
30 300. 05, 400.00 17. 57 310. 05, 700.00 17.96 320.0
31308. 05, 704. 00 18. 07 318. 06, 014. 00 18. 47 328. 0
32 316. 06, 016. 00 18. 57 326. 06, 336. 00 18. 98 336.0
33 324. 06, 336. 00 19.08 334. 06, 666. 00 19. 48 344. 0
34 [332. 06, 664.00 19. 58 342. 07, 004. 0019. 99352. 0
35 340. 07, 000. 00 20. 08 350. 07, 350. 00|20. 50 360.0
36 348. 07, 344.00 20. 58 358. 07, 704. 00 21.00 368.0
37 356. 07, 696. 00|21. 08₤366. 08, 066. 00 21. 50 376. 0
38 364. 08, 056.00 21. 58 374. 08, 436. 00 22. 01384. 0
39 372. 08, 424.00 22. 08 382. 08, 814. 00 22. 51 392. 0
3, 200.00 13. 07 250. 0
3, 444.00 13. 60 258. 0
3, 696. 00 14. 14 266. 0
3, 956. 0014. 67 274. 0
4, 224. 00 15. 20 282. 0
4, 500.00 15. 73 290. 0
4, 784. 00 16. 25 298. 0
5,076.00 16. 77 306. 0
5, 376. 00 17. 29 314. 0
5, 684. 00 17. 81 322. 0
6,000.00 18. 33 330. 0
6, 324. 00 18. 84|338. 0|
6, 656. 00 19. 36 346. 0
6, 996. 00 19. 87 354. 0
7,344. 00 20. 38 362. 0|
7, 700.00 20. 89370.0
8, 064. 00|21. 40|[378. 0
8, 436. 00 21. 91₤386. 0
8, 816. 00 22. 41 394. 0
9, 204. 00 22. 92402. 0
1, 474.00 8.16
1, 656.00 8.76
1,846. 00 9.36
2, 044.00 9.95
2, 250.00 10. 53
2, 464. 00 11. 10
2, 686. 00 11. 67
2,916.00 12. 23
3, 154. 00 12. 79
3, 400.00 13. 34
3, 654.00 13. 88
3,916.00 14. 43
4, 186. 00 14.97
4, 464.00 15. 50
4, 750.00 16.04
5,044.00 16. 57
5, 346. 00 17. 10
5, 656.00 17.63
5, 974. 00 18. 15
18.67
6, 300.00 18. 67
6, 634. 00 19. 19
6, 976.00 19. 71
7, 326.00 20. 23
7, 684.00 20.75
8,050.00 21. 26
8, 424. 00 21. 78
8, 806. 00 22. 29
9, 196. 00|22.80
9, 594.00 23. 31
40 380. 08, 800.00 22. 57 390. 09, 200.00 23.01 400.0 9, 600.00 23. 42410. 0 10, 000.00 23. 82
41 388.09, 184. 00 23. 07 398. 0 9, 594. 00 23. 51 408. 010, 004. 00 23. 93 418. 0 10, 414. 00 24. 33
42 396. 09, 576. 00 23. 57 406. 09, 996. 00 24. 01 416. 0 10, 416. 00 24. 43 426. 0 10, 836. 00 24. 83
43 404. 09, 976. 00 24. 06 414. 0 10,406.00 24. 51 424. 010, 836. 00 24. 93 434. 0 11, 266. 00 25. 34
44 412. 0 10,384.00 24. 56 422. 0 10,824.00 25. 01432. 011, 264. 00 25. 44 442. 011, 704. 00 25. 85
45 420. 010,800.00 25. 05 430. 0 11,250.00 25. 51 440. 0 11, 700.00 25. 94450. 0 12, 150. 00 26. 35
46 428. 0 11,224.00 25. 55 438. 0 11,684.00 26. 00 448. 0 12, 144. 00 26. 44 458. 0 12, 604. 00 26. 86
47 436. 0 11,656.00 26. 04 446. 0 12,126.00 26. 50 456. 0 12, 596. 00 26. 94 466. 013, 066. 00 27.36
48 444. 0 12,096.00 26. 54 454. 0 12,576.00 27. 00 464. 013, 056. 00 27. 44 474. 0 13, 536. 00 27. 86
49 452. 0 12,544.00 27. 03 462. 0 13,034.00 27. 49 472. 013, 524. 00 27. 94 482. 0 14, 014. 00 28. 36
13,000.00 50 460.0 /27
0/13,000.0027.52 470.0 13,500.00 27.99 480. 0 14,000.00 28. 44 490. 0 14, 500.00 28.87
258
HYDRAULIC TABLES
Table 14.-Area in square feet,
feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
Bottom width
100 feet
Bottom width
110 feet
Bottom width
120 feet
Bottom width
130 feet
T
A
T T
A
Τ
A
T
T
A
T
8.44 208. 0
9.07 216.0
9.70 224. 0
10. 31 232. 0
11188. 01, 584.00 8. 31 198. 01, 694. 00|
12 196. 01, 776. 00 8.93 206. 01, 896. 00
13 204. 01, 976. 00 9. 54 214. 02, 106. 00
14 212. 02, 184.00 10. 14 222. 02, 324. 00
15 220.0 2,400.00 10. 73 230. 02, 550.00 10. 91 240.0
16 228. 02, 624.00 11. 31 238. 02, 784. 00 11. 51 248. 0
17 236. 02, 856. 00|11. 89|246. 0|3, 026. 00|12. 10 256. 0
18 244. 03, 096. 00|12. 46|254. 03, 276. 00 12. 68 264. 0
19 252. 03, 344. 00 13. 03|262. 03, 534. 00|13. 25 272. 0
20 260. 03, 600.00 13. 59 270. 03, 800.00 13. 82 280.0
21 268. 03, 864. 00 14. 15 278. 04, 074. 00 14. 39 288. 0
22 276.04, 136. 00 14. 70 286. 0 4, 356. 00 14. 95 296. 0
23 284. 04, 416. 00 15. 25 294. 0 4, 646. 00 15. 50 304. 0
24 292. 04, 704. 00 15. 79 302. 04, 944. 00 16. 06 312. 0
1,804.00 8.56 218. 0
2, 016. 00 9. 21 226. 0
2, 236. 00 9.84 234. 0
2, 464. 00 10. 47 242. 0
2,700.00 11.08 250.0
2, 944. 00|11. 69|258. 0
3, 196. 00 12. 28 266. 0
3, 456. 00 12. 87 274.0
3, 724. 00|13. 46 282. 0
4,000. 00 14. 04 290. 0
4, 284. 00 14. 61|298. 0
4, 576. 00 15. 18 306. 0
4, 876. 00 15. 75 314. 0
5, 184. 00 16. 31322. 0
5, 500.00 16. 86 330. 0
25 300. 05, 000. 00 16. 33 310. 05, 250.00 16. 61 320. 0
26 308. 05, 304. 00 16. 87 318. 05, 564. 00 17. 15 328.05, 824. 00 17. 42 338.0
27 316. 05, 616. 00 17. 41 326. 05, 886. 00 17. 69 336. 0
28 324. 05, 936. 00 17. 94 334. 06, 216. 00 18. 23 344. 0
29 332. 06, 264. 00 18. 47 342. 06, 554. 00 18. 77 352.0
30 340.06, 600.00 19.00 350. 06, 900.00 19. 31 360. 0
31 348. 06, 944. 00 19. 53 358. 07, 254. 00 19. 84 368. 0
32356. 05|366. 00|20. 37|376.
32 356. 07, 296. 00 20. 05 366. 07, 616. 00 20. 37 376. 0
33 364. 07, 656. 00 20. 57 374. 0 7, 986. 00 20. 90 384.0
34 372. 08, 024. 00 21. 10 382. 018, 364. 00 21. 43 392. 0
6, 156. 00 17.97 346.0
6, 496. 00 18. 51354. 0
6, 844. 00|19. 06|362. 0|
7, 200.00 19. 60 370. 0
7, 564. 00 20. 14 378. 0
7,936.00 20. 67 386.0
67|386.
8, 316. 00 21. 21 394. 0
8, 704. 00 21. 74 402. 0
1, 914.00 8.67
2, 136.00 9.33
2, 366.00 9.97
2, 604.00 10. 61
2,850.00 11. 23
3, 104. 00 11. 85
3, 366. 00 12. 46
3, 636.00 13. 06
3, 914.00 13. 65
4, 200. 00 14. 24
4, 494.00 14. 82
4, 796. 00 15. 40
5, 106. 00 15. 97
5, 424.00 16. 54
?
5, 750. 00 17. 11
6, 084.00 17. 67
6, 426. 00 18. 22
6, 776. 00 18. 78
7, 134.00 19. 33
7,500.00 19. 87
7, 874.00 20. 42
8, 256. 00 20. 96
8, 646. 00 21. 50
9, 044. 00 22. 04
00₤20.
9, 450.00 22. 57
9, 864.00 23. 11
35 380.08, 400.00 21. 62 390. 08, 750. 00 21. 95 400. 0 9, 100. 00 22. 27410. 0
00|21. 62|390. 00|21.
36 388. 08, 784. 00 22. 13 398. 0 9, 144. 00 22. 47 408. 0 9, 504. 00 22. 80 418. 0
37 396. 09, 176. 00 22. 65 406. 09, 546. 00 23. 00 416. 0 9, 916. 00 23. 33 426. 0 10, 286. 00 23.64
38 404. 09, 576. 00 23. 17414. 09, 956. 00 23. 52 424. 010, 336. 00 23. 85 434. 010, 716.00 24. 17
39 412. 09, 984. 00 23. 68 422. 0 10,374.00 24. 04 432. 0 10, 764. 00 24. 37 442. 011, 154. 00 24. 70
40 420. 0 10,400.00 24. 19 430. 0 10,800.00 24. 55 440. 0 11, 200. 00 24. 90 450. 0 11, 600.00 25. 23
41 428. 0 10,824.00 24. 71438. 0|11,234.00 25. 07448. 0 11, 644. 00 25. 42458. 0 12, 054. 00 25.75
42 436. 0 11,256.00 25. 22446. 0 11,676.00|25. 59 456. 012, 096. 00 25. 94 466. 0 12, 516. 00 26. 28
43 444. 0 11,696.00 25. 73 454. 0 12,126.00 26. 10 464. 0 12, 556. 00 26. 46 474. 0 12, 986. 00 26. 80
44 452. 0 12,144.00 26. 24 462. 0 12,584.00 26. 61 472. 013, 024.00 26. 97 482. 0|13, 464. 00 27. 32
45 460. 0 12,600.00 26. 75 470. 0 13,050.00 27. 13 480. 013, 500. 00 27. 49 490. 0 13, 950.00 27.84
46 468. 0 13,064.00 27. 25 478. 0 13,524.00 27. 64 488. 0 13, 984. 00 28. 01 498. 0 14, 444.00 28. 36
47 476. 0 13,536.00 27. 76 486. 0 14,006.00 28. 15 496. 0 14, 476. 00 28. 521506. 014, 946.00 28. 88
48 484. 0 14,016.00 28. 27 494. 0 14,496.00 28. 66 504. 014, 976. 00 29. 03 514. 0 15, 456. 00 29. 39
49 492. 0 14,504.00|28. 77|502. 0 14,994.00 29. 17 512. 015, 484. 00 29. 55 522. 015, 974. 00 29.91
50 500.0 15,000.00 29. 28 510. 0 15,500.00 29. 68 520.016, 000. 00 30. 06530. 0 16, 500.00 30.43
HYDRAULIC TABLES
259
Table 14.-Area in
in square
square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Depth
Bottom width
140 feet
Bottom width
150 feet
Bottom width
160 feet
Bottom width
170 feet
T
A
T Τ
A
T T
A
T T
A
T
8.87 248.0
9. 54 256. 0
10. 21 264. 0
10.86 272. 0
2, 244.00
2, 496. 00
8.95 258.0
9.64 266. 0
11 228. 02, 024. 00] 8. 77 238. 02, 134. 00
12 236.0 2, 256.00 9.44 246. 02, 376.00
13 244. 02, 496. 00 10. 10 254. 02, 626. 00
14 252. 02, 744. 00 10. 74 262. 02, 884. 00
2, 756.00 10. 31 274. 0
3, 024.00 10. 98 282.0
5, 456. 00 15. 98 346.0
5, 796.00 16. 58354.0
6, 144. 00 17. 17 362.0
2,354.00 9.03
2, 616. 00 9.73
2, 886.00 10. 41
3, 164.00 11. 08
3, 450.00 11.75
3,744.00 12. 40
4,046.00 13.04
4, 356.00 13. 68
4, 674. 00 14. 31
5,000.00 14.93
5, 334. 00|15. 54
5,676.00 16. 15
6, 026.00 16. 75
6, 384.00 17. 35
15 260.03,000.00 11. 38 270. 03, 150.00 11. 51 280. 0 3, 300.00 11. 63 290. 0
16268. 03, 264. 00 12. 00 278. 03, 424. 00 12. 14 288. 0 3, 584.00 12. 28 298.0
17 276.03, 536.00 12. 62 286. 03, 706. 00 12. 77 296.0 3, 876. 00 12. 91 306. 0
18 284.03, 816.00 13. 23294. 03, 996. 00 13. 39 304. 0 4, 176. 00 13. 54 314. 0
19 292. 04, 104. 00|13. 83 302. 0 4, 294. 00 14. 00312. 0 4, 484. 00 14. 16|322.0
20 300.04, 400. 00 14. 43|310. 04, 600.00 14. 61 320. 0 4, 800.00 14. 77 330.0
21308. 04, 704. 00 15. 02 318. 04, 914. 00 15. 21 328. 05, 124.00 15. 38 338. 0|
22 316. 05, 016. 00 15. 61 326. 05, 236. 00 15. 80 336.0
23 324. 05, 336. 00 16. 19334. 05, 566. 0016. 39 344. 0
24 332.05, 664. 00 16. 76|342. 05, 904. 00 16. 97 352.0
25 340. 06, 000. 00|17. 33|350. 0|6, 250. 00|17. 55|360. 0
26 348. 06, 344. 00|17. 90|358. 0|6, 604. 00|18. 12368. 0
27356. 06, 696. 00|18. 46|366. 06, 966. 00|18. 69 376. 0
28 364. 07, 056.00 19. 02 374. 07, 336.00 19. 26|384. 0
29 372.0 7, 424. 00 19. 58 382. 07, 714. 00 19.82 392.0
30 380.07, 800.00 20. 13 390. 08, 100. 0020. 38/400.0
31 388.08, 184. 00 20. 69 398. 0|8, 494. 00|20. 94 408. 0
32 396. 08, 576.00 21. 23406. 08, 896.00 21. 49 416.0
33 404. 08, 976. 00 21. 78 414. 09, 306. 00|22. 05 424. 0
34412. 09, 384. 00 22. 32 422. 09, 724. 00 22. 59 432. 010, 064. 00 22. 85₤442. 0|10, 404. 00 23. 10
6,500.00 17. 75|370.0
6, 864. 00 18. 33|378. 0|
7, 236. 00 18. 91 386.0
7, 616. 00 19. 48 394. 0
8, 004. 00 20. 05 402. 0
8, 400.00 20. 62410.0
8, 804. 00|21. 18|418. 0|
9, 216.00 21. 74 426. 0
9, 636. 00|22. 30|434. 0|
6, 750.00 17.94
7, 124. 00 18. 53
7, 506.00 19. 12
7, 896.00 19. 70
8, 294.00 20. 27
8, 700.00 20. 84
9, 114. 00 21. 41
9, 536.00 21.98
9, 966. 00 22. 54
35 420. 09,800. 0022. 86 430. 0 10,150.00 23. 14 440. 010, 500.00 23. 41 450. 0 10, 850.00 23. 66
36 428. 0 10,224.00 23. 40 438. 0 10,584.00 23. 69 448. 0|10, 944. 00 23. 95 458. 0 11, 304. 00 24. 21
37 436. 0 10,656.00 23. 94 446. 0 11,026.00 24. 23 456. 011, 396. 00 24. 50 466. 011, 766. 00 24. 76
38 444. 0 11,096.00 24. 48 454. 0 11,476.00 24. 77 464. 0 11, 856. 00 25. 05474. 0 12, 236.00 25. 31
39 452. 011,544.00 25. 01 462. 0 11,934.00 25. 31 472. 0 12, 324. 00|25. 59|482. 0|12, 714. 00 25. 86
40 460. 0 12,000.00 25. 54 470. 0|12,400.00 25. 84 480. 0 12, 800. 00₤26. 13|490. 0|13, 200. 00|26. 41
41 468. 0 12,464.00 26. 07 478. 0 12,874.00 26. 38 488. 0 13, 284.00 26. 67 498. 0 13, 694. 00 26.95
42 476.0 12,936.00 26. 60 486. 0 13,356.00 26. 91 496. 0 13, 776. 00 27. 21 506. 0 14, 196. 00 27. 49
43 484. 0 13,416.00 27. 13 494. 0 13,846.00 27. 44 504. 0 14, 276. 00 27. 74 514. 0 14, 706. 00 28.03
44 492. 0 13,904.00 27. 65|502. 0|14,344.00 27. 97 512. 014, 784. 00 28. 28 522. 015, 224. 00|28. 57
45 500. 0 14,400.00 28. 18 510. 0 14,850.00 28. 50|520. 0[15, 300.00 28. 81 530. 0 15, 750.00 29. 11
46 508. 0 14,904.00|28. 70 518. 0 15,364.00 29. 03|528. 0|15, 824. 00 29. 34 538. 0 16, 284. 00 29. 64
47 516. 0 15,416.00 29. 22 526. 0 15,886.00 29. 55 536. 0 16, 356. 00 29. 87 546. 0 16, 826. 00 30. 18
48 524. 0 15,936.00 29. 74 534. 0 16,416.00 30. 08 544. 0 16, 896. 00 30. 40 554. 0 17, 376. 00 30. 71
49 532.0 16,464.00 30. 26|542. 0 16,954.00 30. 60|552. 0|17, 444. 00 30. 93 562. 0 17, 934. 00|31. 24
50 540.0 17,000.00 30. 78 550. 0 17,500.00 31. 12 560. 0 18, 000. 00 31. 45 570.018, 500.00 31. 77
50 540.0 17,000.00 30. 78 550
12560. 18,000.00
260
HYDRAULIC TABLES
Table 14.-Area in
in
square feet, A, top width in feet, T, and
hydraulic radius in feet, r, of trapezoidal channels,
side slopes 4 to 1-Continued

Bottom width
180 feet
Bottom width
190 feet
Bottom width
200 feet
Depth
T
A
↑
T
A
T
T
A
T
12
13
14
17
18
19
20
21
23
24
26
27
29
IRRI 49=*= 222** *2*X* -**** ***** ***** ***
268. 02, 464. 00
9.10
278.0 2,574. 00
9. 17
276.0 2,736.00
9.81
286.0 2,856. 00
9.88
288.0 2,684.00
296.0 2,976.00|
9.23
9.95
284.0 3,016. 00
10. 50
294.0 3, 146. 00
10.59
304. 0 3, 276. 00
10. 66
292.0 3,304. 00
11. 18
302. 0 3, 444. 00
11. 28
312.0 3, 584. 00
11.36
300.0 3,600. 00
11.85
310.0 3,750.00
11.95
320.0 3,900. 00
12.05
308. 0 3, 904.00
12. 52
318. 0
4, 064. 00
12. 62
328. 0
4, 224.00
12.73
316.04, 216. 00
13. 17
326. 0
4, 386.00
13. 28
336. 0 4, 556.00
13. 39
324. 0 4, 536. 00
13.81
334. 0
4, 716. 00
13. 93
344.0 4,896. 00
14.05
332. 0 4, 864. 00
14. 45
342. 0 5,054. 00
14. 58
352.05, 244. 00
14.70
340.05, 200.00
15.08
348. 0 5, 544.00
15.70
356. 0 5,896. 00
16. 31
350.0|| 5, 400. 00|
358. 05, 754.00
366.0 6, 116. 00
15. 21
360.0 5, 600.00
15.35
15.84
368. 05, 964.00
15.98
16. 47
376.0 6, 336. 00
16.61
364.0 6, 256.00)
16.92
374. 0 6, 486.00
17.08
384.0 6, 716. 00
17.24
372.0 6, 624.00
17.53
382.0 6,864. 00
17.69
392. 0 7, 104. 00
17.85
25 380.0 7,000.00
18. 13
390. 0 7, 250.00
18.30
400.0 7,500.00
18.47
388.0 7, 384.00
18.72
398.0 7, 644.00
18.90
408. 0 7, 904. 00
19.07
396. 0 7, 776. 00
19. 31
406. 08, 046. 00
19. 50
416. 08, 316. 00
19. 68
28
404. 0 8, 176.00
19.90
414. 08, 456.00
20.09
424. 0 8, 736. 00
20. 27
412. 08, 584. 00
20. 48
422. 0 8,874.00
20.68
432. 09, 164. 00
20.87
30 420.0 9,000.00
21.06
430. 0 9,300.00
21.26
440.0 9, 600. 00
21.46
31
428.0 9, 424. 00
21. 63
438.0 9.734.00
21.84
448. 0 10, 044. 00
22.04
32
436.0 9, 856. 00
22. 20
446. 010, 176. 00
22.42
456. 010, 496. 00
22.63
33
444. 010, 296. 00
22.77
454. 010, 626. 00
22.99
464. 0 10, 956. 00
23. 21
34
452. 0 10, 744. 00
23. 34
462. 011, 084.00
23. 56
472. 0 11, 424. 00
23.78
35
460. 0 11, 200.00
23.90
470. 011, 550. 00
24. 13
480. 011, 900. 00
24.35
36
468. 0 11, 664,00
24. 46
478. 0 12, 024. 00
24.70
488. 012, 384. 00
24.92
37
476. 012, 136.00
25.02
486. 012, 506.00
25. 26
496. 012, 876. 00
25. 49
38
484. 012, 616.00
25.57
494. 012, 996.00
25.82
504. 013, 376. 00
26.06
39
492. 013, 104. 00
26. 12
502. 0 13, 494. 00|
26. 38
512.013, 884. 00
26.62
40
500.0 13, 600.00
26. 67
510. 014, 000. 00
26.93
520. 014, 400.00
27. 18
41
508. 0/14, 104.00
27.22
518. 014, 514. 00
27.48
528. 0/14, 924. 00
27.73
42
516. 014, 616. 00
27.77
526. 015, 036. 00
28.03
536. 015, 456. 00
28. 29
43
524. 015, 136. 00
28. 31
534. 015, 566. 00
28.58
544. 0 15, 996. 00
28.84
44
532. 015, 664. 00
28.86
542. 0 16, 104. 00
29. 13
552. 016, 544. 00
29.39
45
540.0 16, 200.00
29.40
550. 0 16,650.00
29.67
560. 017, 100. 00
29.94
46
548. 0 16, 744.00
29.94
558. 0 17, 204. 00
30.22
568. 0 17, 664. 00
30.49
47
556. 017, 296.00
30.47
566. 017, 766. 00
30.76
576.0 18, 236.00
31.04
48
564. 017, 856. 00
31.01
574. 018, 336. 001
31.30
584. 018, 816. 00
31.58
49
572. 0 18, 424. 00
31.54
582.0 18, 914. 00
31.84
592. 019, 404. 00
32. 12
50 580.019, 000. 00
32.66
32.08
600.0 20,000. 00
590. 019, 500. 00
32.38
HYDRAULIC TABLES
261
Table 15.-Kutter's values of c for use in the Chezy formula,
n
v=c√rs
Slope s=.00005-1 in 20,000=0.264 feet per mile

.013
.020
.013 .014 .015 .017.020.0225 .025 .030.035
009
•
.010
.011
.012
T
0.1
78
67
59
52
47 43
39
33
0.2
100
87
77
68
62
56 51
44
0.3
114
99
88
79
71
65
59
50
0.4
124
109
97
88
79
72
66
57
0.6
139
122
109
98
90
82
76
65
53
0.8
150
133
119
107
98
90
83
71
1111
1.0
158
140
126
114
104
96
89
77
64
1.5
173
154
139
126
116
107
99
87 72
184
164
148
135
124
115
107
94 79
198 178
161
148
136
127
118 104 88
*3.28
201 181
164
151
139 129
121 106 91
4
207
187 170
156
145 135
126 111
95
6
220
199
182
168
156
146
137
122 105
10
234
212
195
181
169
158
149
134 116
105 96
20
250
228
211
196
184 174
165
149 131
120❘ 110
50
266
245
228 213 201 190
181
165 148 136 127 112 101
100
275
254 237 222 210 200 190 175 158 146 137
**2*** *9*8888 7822
237988 JNR 782
NA8G9N AJRRDB 2999
225379 9587278 8256
922885 9788*2 2822
44
56
85
123
112
Slope s=.0001=1 in 10,000=0.528 feet per mile

0.1
90 78 68 60 54
49
44
0.2
112 98 86 76
69
63
57
0.3
125 109
97
87
78
72
65
0.4
136 119
106
95
86
79
72
0.6
149 131
118
105
96
88
81
0.8
158
140
126
114
103 95
88
1.0
166
147
132
120
109 101 93
1.5
178 159
144
130 120 111 103
2
187
168
151
138
127 118 109
3
198
178
162
149
137
127 119
104
4
206
186
169 155
143 134 125 111
6
215
195
178
164
152
142 134 119 102
10
226
205 188
174
162 152 143 128 111 100
AA4ODO DRZE
MOONRO B2
30
39
45
50
57
63
67
75
81
89
94 84
84
92
20
237 216
200 185
50
100
249 227 211 197
255 234 218 204
173
185
191
163 154 139 122 111 102
175 166 151 134 123 114 100 91
181 172 158
140 130 121 108
HORROR BERARE 8278
**7788 2*88* *888
22**** 28JERI SEE
*30904 88FRIT BERS
14
19
22
25
30
33
35
41
45
51
55
61
69
89
79
98
* Values of c are the same for all slopes when r=3.28 feet. (See Preface.)
262
HYDRAULIC TABLES
Table 15.-Kutter's values of c for use in the Chezy formula,
v=c√√rs—Continued
Slope s=.00005=1 in 20,000=0.264 feet per mile

ន
.040
.045
.050 .055 .080
.065 -070 .075
.100
.125 |.150 | .175
T
0.1
0.2
11
9
0.3
18
0.4
20
17
0.6
24
21
0.8
27
23
1.0
29
1.5
34
2.0
38
3
44
*3.28
45
4
48 43
B
55
10
64
CHEER 20***** *
15 13 11 10
15 13
21
26
30
34 30
39
40
49
20
76
70
50
92 85
100
103
96
**** 2N33889 BIRO
8
12
15
14
18
16
19
20
27
24
35
36 33
35
45
53
48
64
59
79
90 85
220000 2000
DOCTOR 227283 888
9
11
15
19
25
29
30
33
45
55
74 70 66
**CCER E227083 2NSF
71227
6
5
8
8
10
11
10
14
13
15
14
17
16
19
21
25
26
41 38 35 33
42
39
52
49
81 77 73
470023 2222222 5988
DODORE OPER008 ****
5
8
10
12
13
10
15
11
17
13
20
23
24
28 26 20
31 23
37
46
60
70
CAUN NNIERE SONGGIA
3
4
5
8
6
6
2384 LO LO
2345 CO CO
COTH LO C∞ 7∞
5
5
8
10
7∞
8
15
12
10
679
8
17
14
12
10
18
14
12
10
16
13
11
19
16
14
28
23
19
17
36
30
26
22
49
41
36
32
59
51
45
40
2220
Slope s=.0001=1 in 10,000=0.528 feet per mile

0.1
12
0.2
16
0.3
19
0.4
21
0.6
25
0.8
28
4
050
Live & C
1.0
30
1.5
2.0
3
35
48
100
2238
50
90
2020 238*** CF28
10
14
16
18
31
39
54
61
71
2002* ****** *
9
8
12
14
16
19
24
22
27
28
34
31
44 39 35
43 39 35
48
44
55
65 60 55
76
84 79
CHOON *00 8852
11
10
13
15
13
17
19
18
24 21
19
25
28
32
40
50 46
71 67 63
74
PERLO 12*70* 2005
TORRO¤ 2*220* *N*2
PERBER 220200 Q50
7
6
6
9
8
12
11
12
16 14
16
18
23
25
23
29
37 34
43 40 38 35
52 48
59
70 67 64 62
Q&A: ~N~~HZ ZEES.
10
11
13
15
16
19
21
25
32 30 28 26 20 16
57
OMAC UNNUTE HOONG
5
4
5
6
10
7
12
9
14 10
15
11
18
13
20
15
23
17
32 30 23
46 43 34
54
52
HBONGO H♡RNOR N**8
PORTOR 20
8697 IN CO
3
4
OCH LOCOC
2
3
5
6
6
23 ∞ COTH LO LO
3
3
4
5
5
9
10
79
12 10
14 12
13
18 16
13
27 22 19
29
24
44 38 33
45 40 36
ONDER 9228
6
7
8
10
11
16
21
*Values of c are the same for all slopes when r=3.28 feet.
(See Preface.)
HYDRAULIC TABLES
263
Table 15.-Kutter's values of c for use in the Chezy formula,
v=c√rs-Continued
n
Slope s=.0002=1 in 5,000=1.056 feet per mile


009
010
011
•
.012 | .013
.014.015.017.020.0225 .025 | .030 | .035
T
0.1
99
85
74
65
59
48
41
0.2
121
105
93
83
74
0.3 133
116
103
92
83
0.4
143
125
112
100
91
0.6 155
138
122
111
100
0.8
164
145
131
118
107
1.0
170
151
136
123
113 104
1.5
181
162
146
133
122 113 105
2
188
170
154
140❘ 129 119 111
3
200
179
163
149
137 128 119
BEER 882R
61
69
76
85
91
96
69 60
97
105
4
205
185
168
155
143 133 125 111
6
213
193
176
162
150 140
132 117
100 90
10
222
201
185
170
158 148
140 125 108 98
20
231
210
194
180
168 158
149 134 117 106
50
240
220
203 189
177 167 158
143 126 116
100
245
224
208 194
182 172 163 148 131
**225E #2*888 2618
378998 48INDI 802
Nogg25 86ff*8 8822
****** O**** 2
28822 855EE
18
29
32
37
31
41
44
49
54
59
84
63
69
76
85
94
121 113
99
222257 529588 5238
15
21
24
34
37
42
45
51
60
67
76
90
Slope s=.0004-1 in 2,500=2.112 feet per mile

19
25
21
30
33
27
38
31
42
35
45
50
54
59
51
63
69
75
96
83 73
104
91
96
222223 504763 82**
16
24
42
55
66
87
0.1
104
89 78 69 62
56
0.2 126
110
97
87
78
71
0.3 138
120
107
96
87
79
0.4 148 129
115
104
94 86
0.6 157 140
126 113
103 95
0.8 166 148
133
121
110 101
4
6
211
1.0 172 154 138
1.5 183 164 148 135
190 170 154 141
199 179 162 149
204 184 168
191 175
125
115 106
124 114 106 93 78
130 120
138 128 119 105 89
154
142
161
10
219
199 183
168
157 146
20
227
207 190
176
164 154
50
235
215 198
184
173 162
100
239
219 203
189
CHET WEEELS CINNA*
43 34
54 44
62
68
75
81 67
85 70
112 98
133 124 110 94
149 139 130 116 99
123 107
131 115
104
139 123 112
177 167 158 143 127 116
**8585 CP**** 2225
50
62
83
RANGE BESFRI 8:00
2***** NOR** *22
264
HYDRAULIC TABLES
Table 15.-Kutter's values of c for use in the Chezy formula,
2
v=c√√rs—Continued
Slope s=.0002=1 in 5,000=1.056 feet per mile




.040 .045 .050 .055 .060 .065 .070 .075 .100
.125.150.175
↑
666666
0.1
0.2 17
0.3
20
0.4
0.6
26
0.8
29
20
50
ONE CAUN jadi jak
1.0
1.5
2.0
-16-
31
36
39
44
48
100
222222 28808 8578
13 11
31
53
59
67 61
77
ERROR* 223000 ZZRE
15
13
11
17
15
13
19
17
15
23
20
18
25
22
20
27
24
22
28
25
35
31
28
39
35
32
43
38 35
54
49 45
57
71 66 62 58
83 77 72 68
FOTO 222208 208*
*=*=*8 2***** *808
ORDER ****** ANN
7
7
6
10
8
12
11
10
14 12 11
16 15
14
18
17
15
18
17
23
21
19
26
23
29
27
25
32 30
47 43 39 36 34 31 30
42
37
53 49 46 44
55
53
64 61
59
TOTOOO HR-02* 235
60024 202*28 288
PROCES 702287 88
TOENEN ****O* 2935
4
8
5
3
4
9
11
8
6
5
12
9
14
10
∞∞*456
2 3 4 5 6 7
BD <H LO CO78
2
3
15
11
9
18
13
11
15
12 10
23
18
14 12
26
23
16 13
18
34
27
22 19
41
33 27
50
41
35
56
47
41
CONE GEBOON
9
10
11
15
13
16
ONOOEE O
24
21
31
28
37
33
Slope s=.0004-1 in 2,500=2.112 feet per mile

0.1
13
11
0.2
18
15
0.3
21
18
0.4
23
20
0.6
27
23
0.8
30
26
1.0
32
28
1. 5
36
2.0
40 35 31
3
4
48 42 38
6
52
47
10
58
20
65
50
100
79
ORDER 2000 0188
FRA222 223027 888x
**2*NO 20000 8000
10
9
13
12
16
14
18
16
21
18
23 20
25
28
26
28
44 39 35 32
35
43
39
48
60
55
74 68 63
73
68
2400 22*2** $583
10
12
18
20
23
26
32
36
44
41
51
48
59
BORN 222222 708
7
6
6
4
9
9
8
6
11
10
10
14
13
12
11
8
15
14
13
9
17
16
14
10
CO SELO CN∞
3
4
4
4
6
5
7
6
8
7
2344 LO
COACH ON
5
6
18
17
16
11
9
21
20
18
13
11
24
22
20
15
12
29
27
25
23
18
14
30
28
26
19
16 13
33 31
29
22
18
38
36
34
26
22
45
42
40
32
27 23
56
53
50
48
40
34 30
64
58
56
53
45
39
CONT GE5500
7
9
10
12
10
11
15
13
18
16
35
32
OTOOLS 0278
6
7
8
HYDRAULIC TABLES
265
Table 15.-Kutter's values of c for use in the Chezy formula,
v=c√rs-Continued
Slope 8=.001=1 in 1,000=5.28 feet per mile

.014.015.017 | .020 |.0225|.025 | .030 | .035
N
.009
.010
.011
.012
.013
T
0.1
110
94
83
73
65
59 54
0.2
129 113
99
89
81
73 66
0.3
141
124
109
98
89
81 74
0.4
150
131
117
105
96
88 80
0.6
161
142
127
115
104
96 88
0.8
169
150
134
122
111
102 94
2
3
LLQB4
1.0
175
155
139
127
116
107 99
1.5
184
165
149
136
124
115
108
191
171
155
142
130
121
112
199
179 163
149
138
128 119
105
204
184
168
154
142
133 124 110
6
211
190
174
160
149
139 130 116
HER*** **88ZA
******
10
218 197
181
167
155
145 136
122❘ 105
20
225
205
188
175
163
153 144 129 113 102
50
232
212
196
182
170 160 151 137
100
236
216
200
186 174 164
155 141 124 114 | 105
F****8 2200
****** SOff88
892=
30
39
44
48
55
59
62
69
73
79
54
59
83
63
89
68
95
74
94
81
110 101
124*2* **GEN. 2223
228*82 484888 F
****** *88FR. DIE
21
17
27
30 25
34 28
39
32
42
35
45 38
50 43
46
51
54
59
65
72
89 79
94 85
Slope s=.01=1 in 100=52.8 feet per mile
0.1
110
95
83
74
66
60 54 46
0.2
130 114
100 90
81
74 67 57 46
0.3
143
125 111
100
90
83
76
64
0.4 151
133 119
107
98
89
82 70
0.6 162
143 129
116
106
98
90
77
0.8
170
151
135
123
112
103
95 82 68
1.0
175
156
141
128
117
108
99
1.5 185 165
149
136 125 116 107
2
191
171 155
142
130
121 112
99
3
199
179 162
149
138 128 119 105 89
4
204
184
167
154
6
210
190
173
160
138 129 115 99
142 132 123 109 93 83 76 63
148
10
217
196
180
166
154 145 136 121 105 94 86 74
20
225 204
187
173 161 152 143
50
231
100
210 194 181 168 158 150 135 119 108
235 214 197 184 172 162 153 139
OEJRE 588 2008
2292
36
57
94 79
83
112
88***
*202
NR288
87 72 63 56
***#98 888F E
789988
**25**
31
27 21
39
34
45
39
49
44 35
64 55 49 39 33
60
53 43 35
69
62
74
66 55
79
71
59
81 68
101 93
100
112 | 104
91
224283 02-738 20
272889 45888 280
17
25
29
43
46
51
55
59
65
71
87 78
82
NOTE. For slopes greater than .01, c remains nearly constant.
563189°
·44- -18
266
HYDRAULIC TABLES
Table 15.-Kutter's values of c for use in the Chezy formula,
3
.040
v=c√rs-Continued
Slope s=.001=1 in 1, 000=5. 28 feet per mile



.045 .050 .055 .060 .065 .070 .075 .100
.125 | .150 | .175
T
0.1
0.2
18
0.3
21
0.4
24
0.6
0.8
1. 0
1.5
2.0
3
- LO
40
4
6
10
20
50
100
202258 NAGIEN SJNg
14
12
15
18
27
30 26
32
28
37
32
44 39 35
47
52
57
64
72
240228 222027 NOSN
10
14
16
18
21
23
25
29
35
31
42 38 35
47
42 39
52
59
66 61
76 71 66 63 59
*N4022 22*2*8 #858
PLORER 227300 7858
9
12
11
14
13
16
19
21
19
20
26
23
32
47 44 40 38
54 50 47 44
57
BERLER 2*2*** GEHO
8
7
10
12
11
14 13
12
17 15
14
17
16
19
17
20
26
24
29
32 30 28
36 33
31
41
54
51
56
GODERE 922322 MONE
PRECIO 22*** B
TORREN 22*708 858
6
6
4
9
8
6
10
7
11
8
13
9
15
10
CO TELO CO78
3
4
5
6 5
4996 IP CO
3
4
2344 LO CO
5
6
16
11
18
14
11
20
15
25
18
26
19
22
35
33
26
21
39
31
49
47
38 33 29
54
51
43
38
PEREKO 228*
9 7
9
12 10
14
12
10
16 13
11
18
15
13
18
16
26
23
20
26
34
31
ONOCER 2225
Slope s=.011 in 100=52.8 feet per mile

0.1
14
0.2
18
0.3 21
0.4
24
0.6
28
0.8
3
Hi Hi ci so HO
1.0 33
1.5
2.0 40
4
6
10
20
50
100
HELLO ☹5GEN NORR
12
10
16
14
18
16
21
18
24
21
30 26
23
37
29
35
31
44
47 42 38
52 46 42
57
51
63
70 65 60 56
75 69 65 61
KIRINO 2*8228 g♡♡♡♡
ONE ON *2*288 ❤285
22 327500 7888
29222 223899 7858
9
8
7
12
11
10
14
13
12
16
14 13
19
17
21
19
17
23
21
19
26
24
26
24
32
29
35
32
30
39
36 33
47 43 40 37 35
53 49
46 43 41
53
50
58
VENEC 22222
TORBEN 22*788 5385
7
9
11
10
12
11
15 14 13
16
15
17
16
20
19
20
25
23
27
26
31
0000 922*** mo
6
4
3
3
6
4
4
5
8
6
5
9
6
11
2344 LOC
GH GLO ON
AD THEO CO78
5
6
12
9
14
11
15
12 10
18
14 12
19
16 13
22
18 15
33 26
21 18
39 31
26
48
46
38 32 29
52
50 42 37 33 30
70234 0223
10
11
13
16
26
ONOOR 0288
6
7
8
HYDRAULIC TABLES
267
Table 15.-Kutter's values
of c for use in the Chezy formula,
of c
v=c√rs-Continued
Slope s=.1=1 in 10=528 feet per mile

2
.009
010
011
012 013 014.015
.017
0200 .0250.030.035
T
0.1
111
96
84
75 67
60
0.2
132
115
102
91
82
74
0.3
144
127
112
101
91
83
0.4
153
134
120
108
98
89
0,6
164
145
130
117
107
98
0.8
171
152
136
124
113
104
CENOG
55
46
68
57
76
82
70
90 77
96
83
10
20
2- a-wn- ja
1.0
1.5
2.0
040
177
157
141
128
117
108
100
87
186
166
150
137
125
116
108
ONORE* 5*
36
46
65
52
57
64
68
72
94
79
192
172
156
142
131
121 113 99
83
200
180
163
149
138
128
119
105
89
205 184 168
154
142
132
124
109
93
211
190
174
160
148
138
129
115
99
217
197
180
166
154
144
136
121
105
224
204
187
173
161
151
142
128
111
50
231
210
194
180
168
158
149
135
118
100
234
214
197
183 172
162 153 138
122
103
N***** 8JSFR: 8888
21
31
99
**** ****** **WWNN
27
26
34
28
39
32
43
45
51
54
59
63
68
73
80
87
91
120220 *♡GETS JORD
17
36
38
43
46
51
54
59
64
70
77
81
n
Slope s=.1=1 in 10=528 feet per mile

.040 045 050 055
•
•
060
•
•
065 070 075
100
•
125.150.175
T
0.1
0.2
18
0.3
0.4
0.6
0.8
1.0
1.5
2.0 40
3
4
6
10
20
50
100
402208 35958 MORN
14
12
16
19 16
21
24
21
30 26
33 28
37
32
35 31
44 39
47
42 38
52
46
57
51
63
70 65 60 56
74 69 64 61
12 *2*2** **85
12 227082 788*
COP220 22202 7858
10
9
8
7
7
CO
6
4
3
14
12
11
10
14
13
18
16
15
19
17
23
19
25
23
21
29
26
24
28
26
35
32
29
35 32 30
42 39 36 33
47
43
53 49
46
57
CCAC w☹NNNE ZEE55-
9
8
6
4
12
11
10
7
5
13
12
11
8
6
15
17 16
19
22
20
24
27
25
31
40 37 35 33
43
55
40 F22222 2700
14 13
9
15
11
8
COCH SCH LOON
OD TE LO C7∞
3
4
4
5
6
7
234456
17
16
12
9
19
14
11
21
15
12
23
18
14 12
27
26
19
16 13
29
22
18 15
26
21
41 39 31
26
53 50 48 46 38 32 29
52
50
42 37 33 30
70234 0228
2222
10
10
11
20
26
ONOCER 9283
6
7
8
13
16
SECTION III
MISCELLANEOUS NEW TABLES
A. FRACTIONAL POWERS OF NUMBERS.
B. NORMAL DEPTH IN CHANNELS OF INFINITE
WIDTH.
C. MANNING FORMULA TABLES FOR
COEFFICIENTS OF ROUGHNESS.
VARIOUS
270
HYDRAULIC TABLES
Table 16.—Five-halves powers of numbers

Number
.00 .01
.02
03.04 .05
.06
.07
.08
.09
0.0
0.1
0.4
0.2 .0179 .0202 .0227
0.3 .0493 .0535 .0579
.1012 .1076
0.0000 0.0000 0.0001 0.0002 0.0003 0.0006 0.0009 0.0013 0.0018 0.0024
.0032 .0040 .0050 .0061 .0073 .0087 0102 .0119 . 0137
.0254 .0282 .0313 .0345 .0379
. 0157
.0415
.0453
.1143
. 1212
.0626 .0674
.1284
.0725 .0778
.0833
.0890
.0950
.1358 .1435 .1514
.1596
.1681
0.5
.1768 .1857
.1950
•
0.6
.2789 .2906
.3027
2045 .2143
.3150 3277 .3406
.2243 .2347
2453
.2562
.2674
.3539
.3674
.3813
.3955
0.7
.4100
0.8
.4248 .4399
.5724 .5905 .6089
0.9 .7684 .7900 .8118
.4553
.4711
4871
.5035
.5203
.5373
.5547
.6276
.6467 .6661
.6859
.7060
.7265
7473
•
.8341
.8567
.8796
.9030 .9267
.9507
.9752
1.0 1.000 1.025 1.051
1.077 1.103
1.130 1.157
1.184
1.212
1. 240
1.1
1.269 1.298 1.328
1.357
1.388
1.418
1.449 1.481
1.513
1.545
1.2
1.577 1.611
1.644
1.678
1.712
1.747
1.782
1.818
1.854
1.890
1.3
1.927
1.964
2.002
2.040
2.079
2. 118
2.157
2. 197
2.237
2.278
1.4
2.319
2. 319 | 2.361
2.403 2.445 2.488
2.532
2.576
2. 620
2.665 | 2.710
1.5
2. 756
2.802
2.848 | 2.896
2.943
2.991
3.040 3.089
3. 138 3. 188
1.6
3. 238
3.289
3.340 3.392
3. 444
3.497
3.550
3.604
3.658
3.713
1.7
3.768
3.824
3.880
3.937
3.994
4. 051
4.109
4.168
4. 227
4. 287
1.8 4.347 4.408
4.469
4. 530
4. 592
4. 655
4.718
4. 782
4.846 | 4.911
1.9 4.976
5.042
5.108
5. 175
5. 242
5.310
5.378
5. 447
5. 516
5. 586
2.0
5.657
5.728
5.799
5.871
5.944
6.017
6.091
6.165
6. 240
6.315
2.1
6. 391
6. 467
6. 544
6.621
6. 699
6.778 6.857
6.937 7.017 7.098
2.2
7. 179
7. 261
7.343
7.426
7.510
7.594 7.678
7.764 | 7.849 | 7.936
2.3
8.023
8.110
8.198
8.287
8.376
8.466
8.556
8.647 | 8.739 | 8.831
2.4
8.923
9.017
9.110
9.205
9.300
9.395
9.492
9.588 9.686 9.784
2.5 9.882
9.981
10.08
10. 18
10.28
10.38
10.49
10. 59
10.69 10.80
2.6 10.90 11.01
11. 11
11. 22
11.32
11.43
11.54
11.65
11.76 11.87
2.7 11.98
12.09
12. 20
12. 31
12.43
12. 54
12. 66
12.77
12.89 13.00
2.8 13. 12
13. 24
13. 35
13.47 13.59
13.71
13.83
13.95
14.08 14.20
2.9 14.32
14. 45
14. 57
14.69
14.82
14.95
15.07
15.20
15.33
15.46
3.0 15.59
15. 72
15.85
15.98
16.11
16.25
16.38 16. 51
16.65
16.78
3.1 16.92
17.06
17.19
17.33
17.47
17.61
17.75
17.89
18.03
18. 18
3.2 18.32 18.46
18. 61
18.75
18.90
19.04
19.19
19.34
19.48
19.63
3.3 19.78 19.93
20.08
20. 24
20.39
20.54 20.69
20.85
21.00
21.16
3.4 21.32 21.47
21.63
21.79
21.95
22.11
22.27
22. 43
22.59
22.75
3.5 22.92 23.08
23.25
23.41
23.58 23.74
23.91
24.08
24. 25
24.42
3.6 24. 59 24.76 24.93
25.11
25.28
25.45
25. 63
25.80
25.98
26. 16
3.7 26.33
26.51
126.69
26. 87
27.05 27.23
27.41
27.60
27. 78
27.96
3.8 28. 15
28.33 28.52
28.71
28.90
29.08
29.27
29.46
29.65
29.85
3.9 30.04
30.23 30.42
30.62 30.81
31.01
31. 21
31.40
31.60
31.80
4.0 32.00
32.20 32.40
32.60 32.81
33. 01
33.21
33.42
33.62
33.83
4.1 34. 04
34.25 34.45
34.66 34.87
35.08
35.30
35. 51
35. 72
35.94
4.2 36. 15
36.37 36.58 36.80
37.02
37.24
37.46
37.68
37.90
38. 12
4.3 38.34
4.4 40. 61
38.56
38.79 39.01
39.24
39.47
39.69
39.92
40.15
140.38
40.84 41.07 41.31
41.54
41.77
42. 01
42.24
142. 48
42.72
4.5 42.96
43.20
43.44
43.68
43.92
44. 16
44.40
44. 65
44.89
45.14
4.6 45.38
45.63
45.88 46. 13
46.38
46.63
46.88
47.13
47.38 47.64
4.7 47.89
48. 15
48.40 48.66
48.92
49. 17
4.8 50. 48
50.74
51.01
51.27
51.54
51.80
49.43 49.69 49.95 50.22
52.07 52.34 52.61 52.88
4.953. 15
54.79 55.07 55.34 55.62
53.42
54.51
53.69
54. 24
53.97
HYDRAULIC TABLES
271
Table 16.—Five-halves powers
powers of numbers-Continued

Number
.00
.01
.02
.03
.04
.05
.06
.07
.08
.09
5.0
55.90
56. 18
56.46 56.74 57.03
57.31
57.59 57.88 58.16 58.45
5. 1
58.74
59.03
5.2
61.66
61.96
62.26
59.32 59.61 59.90
62.55 62.85
60. 19
60.48 60.78 61.07
61.36
63.15
63.45
63.76
64.06 64.36
5.3
64.67
64.97
65. 28
65.59 65.90 66.20
66.51
66.82
67.14 67.45
5.4
67.76
68.08
68.39
68.71
69.02
69.34
69.66
69.98
70.30 70.62
5.5
70.94
71. 27
71.59
71.91
72.24
72.57
72.89
73.22
73.55 73.88
5.6
74.21
74. 54
74.88
75.21 75.54 75.88
76. 22
76. 55
76.89
77.23
5.7
77.57
77.91
78.25
78.59
78.94 79.28
79.63
79.97
80.32
80.67
5.8
81.02 81.37
81.72
82. 07
82.42
82.77
83. 13
83.48
83.84 84.20
5.9
84.55 84.91
85.27
85.63
85.99
86.36
86.72
87.08
87.45 87.81
6.0
88.18 88.55
88.92 89.29 89.66
90.03
90.40
90.78 91.15 91.53
6.1
91.90
92.28
92.66 93.04 93.42
93.80
94. 18
94.56 94.94 95.33
6.2
95.71
96. 10
96.49 96.88
97.27
97.66
98.05
98.44
98.83
99.23
6.3
99.62
100.0
100.4 100.8
101. 2
101.6
102.0
102.4 102.8 103.2
6.4
103.6
104.0 104.4
104.8
105. 2
105.7
106. 1
106.5
106.9
107.3
6.5
107.7
108. 1
108.5
109.0
109.4
109. 8
110. 2
110.6
111. 1
111.5
6.6
111.91
112.3
112.8
113. 2
113.6
114.0
114.5
114.9
115.3
115.8
6.7
116. 2
116.6
117. 1
117.5
117.9
118.4
118.8
119.3
119.7
120. 1
6.8
120.6
121.0
121.5
121.9
122.4
122. 8
123.3
123.7
124. 2
124.6
6.9
125. 1
125.5
126.0
126.4
126. 9
127.3
127.8
128.3
128.7
129.2
7.0
129.6
130. 1
130.6
131.0
131.5
132.0
132.4
132.9 133.4
133.8
7.1
134.3
134.8
135.3
135.7
136.2 136.7
137.2
137.7
138.1 138.6
7.2
139. 1
139.6
140. 1
140.6
141.0
141.5
142. 0
142.5
143.0 143.5
7.3
144. 0
144. 5
145.0
145.5
146.0 146.5
147.0
147.5
148.0 148.5
7.4
149.0
149.5
150.0
150. 5
151.0
151.5
152.0
152.5
153.0
153.5
~~~~~
7.5
154.0
154.6
155. 1
155.6
156. 1
156.6 157.1
157.7
158. 2
158.7
7.6
159.2
159.8
160.3
160.8
161. 3
161.9
162.4
162.9
163.5
164.0
7.7
164. 5
165. 1
165. 6
166.1
166.7
167.2
167.7
168.3
168.8
169.4
7.8
169.9
170.5
171.0
171.6
172. 1
172.7
173.2]
173. 8
174.3 174.9
7.9
175.4
176. 0
176. 5
177.1
177.6
178.2
178.8
179.3
179.9
180.5
8.0
181.0
181.6
182. 2
182.7
183.3
183. 9
184.4
185. 0
185. 6
186. 2
8.1 186.7
187.3
187.9
188.5
189.0
189.6
190.2
190.8
191.4
192. O
8.2 192.5
193. 1
193.7 194.3
194.9
195.5
196. 1
196.7
197.3
197. 9
8.3 198.5
199.1
199.7
200.3
200.9 201.5
202.1
202.7
203.3
203.9
8.4
204.5
205. 1
205.7
206. 3
206.9
207.6
208. 2
208.8
209.4 210.0
8.5
210.6
211. 3
211.9
212. 5
213.1 213.8
214.4
215.0 215.6
216.3
8.6
216.9
217. 5
218.2
218.8
219.4
220.1
220.7
221.3
222.0
222.6
8.7
223.3
223.9
224. 5
225. 2
225.8
226.5
227.1
227.8
228. 4
229. 1
8.8
229.7
230. 4
231.0
231.7
232. 3
233.0
233. 7
234.3
235.0
235.6
8.9
236.3
237. 0
237.6 238.3
239.0
239.6
240.3
241.0
241. 7
242.3
9.0
243.0
243. 7
244. 4
245.0
245.7
246.4
247. 1
247.8
248. 4
249. 1
9.1
249.8
250.5
251.2
251.9
252.6
253.3
253.9
254.6
255.3
256.0
9.2 256.7
257.4
258. 1
258.8 259.5
260.2 260.9
261.6
262.3
263. 1
9.3
263.8
264.5
265. 2
265.9
266.6
267.3 268.0
268.8
269. 5
270.2
9.4
270.9
271. 6
272. 3
273. 1
273.8
274.5 275.3
276.0
276. 7
277.4
9.5 278.2
278.9
·
279.6 280.4
281. 1
281.8
282.6 283.3
284. 1
284.8
9.6 285.5
286.3
287.0
287.8
288.5
289.3
290.0
290.8
291.5
292. 3
9.7 293.0
293.8 294. 6
295. 3
296. 1
296.8
297.6
298.4
299.1
299.9
9.8
300.7
301.4
302.2
302. 2
303.0
303.7
304. 5
305.3
306. 1
306.8
307.6
9.9
315.4
308.4 309. 2
314. 6
309.9
313.9
310. 7
313.1
311.5
312.3
272
HYDRAULIC TABLES
Table 16.-Five-halves powers of numbers-Continued



Number
.00
.01
.02
.03
.04
.05
.06
.07
.08
.09
10.0
316. 2
317.0 317.8
10.1
324.2
325.0
325.8
10.2
332. 3
333. 1
333.9
10.3
340.5
341. 3
342. 1
10.4
348.8
349.6
350.5
318.6 319.4 320.2 321.0 321.8
326.6 327.4 328.2
334.7 335.5 336.4
343.0 343.8
351.3 352.2
322.6
323.4
329.0
329.8
330. 7
331.5
337.2
338.0
338.8
339.7
344.6 345.5
346.3
347. 1
348.0
353.0 353.9 354.7
355.6
356.4
10.5
357.3
358. 1
359.0 359.8 360.7
361.5
362.4
363.2
364. 1
365.0
10.6
365.8
366.7
367.5
368.4 369,3
370. 1
371.0 371.9
372.8
373.6
10.7 374.5 375.4
376.3
377.1
378.0
378.9
379.8
380.7
381.5
382.4
10,8 383.3 384.2
385. 1
386.0
386.9 387.8 388.7
389.6
390.5 391.4
10.9 392.3 393.2
394. 1
395.0
395.9
396.8 397.7
398.6
399.5 400.4
11.0
401.3
402.2
403. 1
404, 1
405.0
405,9
406.8
407.7 408.6 409.6
11.1
410.5 411.4
412. 3
413. 3
414.2
415. 1
416. 1
417.0 417.9 418.9
11. 2
419.8 420.7
421.7
422.6
423.6
424. 5
425.4
426.4
427.3
428.3
11.3
429.2
430.2
431.1
432. 1
433.0
434.0
435. 0
435.9 436.9
437.8
11. 4
438.8
439.8
440. 7
441.7
442.7
443.6
444.6
445.6 446.5
447.5
11.5
448.5
449.5
450.4
451.4
452.4
453.4
454.4
455.3 456.3
457.3
11.6
458.3
459.3
460.3
461.3
462. 3
463.2
464.2
465. 2
466.2
467.2
11.7
468. 2
469.2
470.2
471. 2
472.2
473.2
474.3
475.3
476.3
477.3
11.8
478.3
479.3
480.3
481.4
482.4
483.4
484. 4
485.4
486.5
487.5
11.9 488.5 489.5
490.6 491.6
492.6
493.7
494.7
495.7
496.8
497.8
12.0 498.8 499.9
500.9
502.0
503.0
504.0
505. 1
506. 1
507.2
508.2
12.1 509.3
510. 3
511.4
512.5
513. 5
514. 6
515.6
516.7
517.7 518.8
12.2
519.9
520.9
522.0
523. 1
524. 1
525. 2
526.3
527.4 528.4
529,5
12.3
530.6
531.7
532.8
533.8
534.9
536.0
537.1 538.2
539.3
540.4
12.4
541. 4
542.5
543.6 544.7
545.8
546.9
548.0
549.1
550.2
551.3
12.5
552.4
553.5
554.6 555.7
556.9
558.0
559. 1
560.2
561.3
562.4
12.6
563, 5
564.7
565.8 566.9
568.0
569. 1
570.3
571.4
572, 5
573.7
12.7
574.8
575.9 577.1
578.2 579.3
580.5
581.6
582.7
583.9
585.0
12.8
586. 2
587.3 588.5 589.6 590.8
591.9
593. 1
594. 2
595.4
596.5
12.9
597.7
598.8
600.0 601.2
602.3
603.5
604.7
605.8
607.0
608.2
13.0
609.3
610.5
611.7 612.9
614. 0
615. 2
616.4
617.6 618.8
619.9
13. 1
621. 1
622.3
623.5
624.7
625.9
627.1 628.3 629.5
630.7
631,8
13.2
633.0
634. 2
635.4 636.6
637.9 639.1 640.3 641.5
642.7
643.9
13.3
645. 1
646.3
647.5 648.7
13. 4
657.3
658.5
659.8 661.0
650.0 651.2 652.4
662.2 663.4
653.6
654.8
656. 1
664.7
665.9
667.2
668.4
13.5 669.6
670.9
672. 1
13.6 682.1 683.4
684.6
673.4
685.9
674.6 675.8 677.1
687.1 688.4
678.3
679.6
€80.8
689.6
690.9 692.2
693.4
13.7
694.7 696.0
697.2 698.5
699.8
701. 1
702.3 703.6 704.9
706.2
13.8
707.5
708.7 710.0
711.3
712.6
713.9
715.2 716.5 717.8
719.0
13.9
720.3
721.6 722.9
724. 2
725.5
726.8 728.1 729.4 730.7
732.1
14.0
733. 4
14. 1
746.5
734.7 736.0 737.3
747.9 749.2 750.5
738.6 739.9
741.2 742.6 743.9
745.2
751.8
753.2
754.5 755.8 757,2
758.5
14.2
759.8 761.2 762.5
763.9
765. 2
766.5
767.9
769.2
770.6
771.9
14.3
773.3 774.6 776.0
14.4 786.9 788.2 789.6 791.0
777.3
778.7
780. 1
781.4
782.8
784. 1
785.5
792.4
793. 7
795.1
796.5
797.9
799.2
14.5 800.6
802.0 803.4 804.8
806. 1
807.5
808.9 810.3
811.7
813.1
14.6 814.5
815.9 817.3 818.7
820.1
821.5
822.9
824.3
825.7
827.1
14.7 828.5
829.9
831.3
832.7
834. 1
835.6 837.0
838. 4
839.8
841.2
14.8 842.7
844. 1
845.5 846.9
848.4
849.8
851.2
852.7
854. 1
855.5
14.9 857.0
870.0
858.4
868.5
859.8 861.3
867. 1
862. 7
865.6
864. 2
HYDRAULIC TABLES
273
Table 16.-Five-halves powers of numbers—Continued

Number .00
.01
.02
.03
.04
.05
.06
.07 .08
.09
15.0
871.4
872. 9
874.3
875. 8
877.2 878.7 880.2
881. 6
883.1
884.6
15.1
886.0
887.5
889.0
890.4
891.9
893.4
894.8
896.3897.8
899.3
15.2
900.8
902.2
903.7
905.2
906. 7
908.2
909.7
911. 2
912.7
914. 2
15. 3
915.6
917.1
918. 6
920.1
921. 6
923. 1
924.7
926. 2
927.7
929. 2
15. 4
930.7
932.2
933.7
935.2
936. 7
938.3
939. 8
941.3
942.8
944.3
15.5
945.9
947. 4
948.9
950.4
952.0
953.5
955.0
956.6
958. 1
959.7
15.6
961.2
962. 7
964.3
965. 8
967.4
968. 9
970.5 972.0
973.6
975. 1
15.7
976.7
978.2
979.8
981.3
982.9 984.5 986.0 987.6 989.2 990.7
15.8 992.3
993. 9
995.4
997.0
998. 61,000
1,002 1,003 1,005 1,006
15.9 1,008 1,010
1,011
1, 013
1,014 1,016
1,018
1,019
1,021
1,022
16.0 1,024 1,026
1,027 1,029
1,030
1,032
1,034
1,035
1,037
1,038
16.1 1,040 (1,042
1,043
1,045
1,047 1,048
1,050
1,051
1, 053
1,055
16.2 1,056 1,058
1,060
1,061
1,063
1,064
1,066
1, 066
1,068
1,068
1,069
1,071
16.3 1,073 1,074
1,076 1,078
1,079
1,081
1,083
1,084
1,086
1,086
1,088
16.4 1,089 1, 091
1,093
1,094
1,096 1, 098
1, 099
1, 101
1, 103
1, 103
❘1, 104
16.5 1, 106
1, 108
1, 109
1,111
1, 1131, 114
1, 116
1,118
1, 119
1, 121
16. 6
1, 123
1, 124
1, 126
1,128
1, 129 |1, 131
1, 133
1,135
1, 1361, 138
16.7 1, 1401, 141
1, 1431, 145
1, 147
1, 148
1, 150
1,152
1,153
1,155
16.8 1,157
1, 159
1, 160
1, 162
1, 164
1, 165
1, 167
1, 1691, 171
1, 172
16.9 1, 174
1, 176
1, 178 1, 179
1, 181 1, 1831, 185
1, 186
1, 188
1,188
1, 190
17. 1 1, 209
17.0 1, 1921, 1931, 1951, 1971, 1991, 2001, 202
1,211 1,213 1, 214 1, 216 1, 218
1, 204
1,206
1,207
1, 220
1, 222
1, 223
1, 225
17.2 1, 227 1, 229
1,231 1, 232
1, 234
1, 236
1,238
1, 239
1, 241
1,243
17.3 1,245
1,247
1,248
1,250
1,252
1,254
1, 256
1,257
1, 259
1,261
17.4 1, 263
1, 265
1, 267 1, 268
1,270
1,272
1, 274
1, 276
1,2771, 279
17.5 1, 281
1, 2831, 2851, 287
1, 288
1,290
1,292
1, 294
1, 296
1, 298
17.6 1,300
1, 301 1, 3031, 305
1,307
1, 309
1,311
1,312
1,314 1,316
17.8 1, 337
17.7 1,318
1, 337
1, 320 1,322 1, 324
1,326
1, 327
1, 329
1, 3311, 3331, 335
1, 339 ||1, 341
1, 342
1,344
1,346
1,348
1, 350
1, 352 1. 354
17.9 1,356
1,357
1,359
1,361
1,363
1,365
1,365
1,367
1,369
1,371
1, 373
18.0 1,375
1,377
1,378
1,380
1,382
1, 384
1,386
1,388
1,390
1, 392
18. 1 1, 3941, 396
1, 398
1,400
1,402
1, 403
1,405
1,407
1, 409
1,411
18.2 1, 413
1,
1, 415
1, 417
1, 419
1, 421
1, 4231, 425
1,427
1, 427
1, 429
429 1, 431
18.3 1,433
1, 435
1, 437
1, 438
1, 440
1, 442
1, 444
1,446
1,448
1,450
18.4 1, 452
1, 454
1, 456
1, 458
1, 460
1, 462
1, 464
1, 466
1, 468
1, 470
18.5 1,472
1,474
1,476
1,478
1, 480
1,482
1, 484
1,486
1, 488
1, 490
18.6 1,492
1, 494
1,496
1, 498
1,500
1,502
1, 504
1,506
1,508
1, 510
18.7 1,512
1,514
1,516
1,518
1,520
1,522
1,524
1,526
1, 528
1, 530
18.8 1, 532
1, 535
1,537
1,539
1,541
1, 543
1, 545
1,547
1, 549
1,551
18.91, 553
1, 555
1,557
1, 559
1, 561
1, 563
1, 563
1, 565
1, 565
1,567
1, 569
1,571
19.0 1,574
1,574 1,576
1,578
1,580
1,582
1, 584
1,586
1,588
1,590
1,592
19.1 1,594
1,594
1,596
1,599
1,601
1,603
1, 605
1,607
1,609
1,611
1, 613
19.2 1, 615
1,617
1, 620
1,622
1, 624
1, 624
1,
1, 626
1, 628
1, 630
1,632
1,634
19.3 1,636
1,636
1, 639
1,641
1, 643
1, 645
1, 647
1, 649
1,651
1, 653 1, 656
19.4 1,658
1, 658
1, 660
1,662
1,664
1,666
1, 668
1,671
1,673
1,673
1, 675
1,677
19.51, 679
1, 681
1,683
1, 686
1, 688
1,690 1,692
1,6941, 696
1,699
19.6 1,701
1, 703
1,705
1,707
1,709
1,712 1,714
1,716 1,718
1,720
19.71,723
1,725
1,727
1,729
1, 731
1,733 1,736
1,738
1,740
1,742
19.8 1,744 1,747 1,749 1, 751
1, 753
1,756
1,758 1,760
1,762
1,764
19.9 1,767 1,769 1,771
1, 787
1,773
, 1,784
1,775
78011, 778
1,782
1, 780 274
HYDRAULIC TABLES
Table 16.-Five-halves powers of numbers—Continued

Number .00
.01
.02
.03
.04
.05
.06
06.0
.07
.08
.09
20.0
1,789
1, 791
1, 793
1, 796❘ 1, 798
1,800
1,802 | 1,805
1,807
1,809
20.1
1,811
1,814
1, 816
1,818 | 1, 820 |
1, 823
|
20.2
1, 834
1,836
1,838
1,841
1,843
1,845 |
1, 825 | 1,827 1,829
1,848 1,850❘ 1,852
1, 832
1,854
20.3
1, 857
1,859
1, 861
1. 864
1,866
1,868
1, 870 |
1,873 1,875
1,877
20.4
1, 880
1, 882 |
1, 884 |
1, 887
1,889 |
1, 891
1,893
1,896 | 1,898
1,900
20.5
1,903
1, 905
1,907
1,910❘ 1, 912
1,914
1,917
1, 919
1,921
1,924
20.6
1,926
1,928
1,931
1,933 1,935
1,938 |
1,940 |
1, 942 |
1, 945
1,947
20.7
1,950
1,952 |
1,
1, 954
1,957
1,957❘ 1,959
1,961
1,964 1,966
1, 968
1, 971
20.8
1,973
1.976
1, 978
1,980 1,983 | 1,985
1,987❘
1,990
1, 992
1,995
20.9 1,997
1, 999
2, 002
2, 004 2, 007 2, 009
2,014
| | |
2, 011
2,014 | 2,016
2,019
21.0 2,021
2,023
2, 026
2, 028
2,031 2,033
2,035
2,038 2,040
2, 043
21.1 2,045 2,047
2,050
2,050
2,052 | 2,055 | 2,057
2,060 | 2,062 | 2,065
2,067
21.2 2,069 2,072
2,074 |
2,077 |
2,079
2, 082
2, 0842, 087
2,089
2, 091
21.3
2,094 | 2,096
2,099
2, 101
2, 104❘
2, 106
|
2,109 | 2, 111 | 2, 114
2, 116
21.4
2, 119 2, 121
|
2, 123
2, 123
2, 126
2, 126
|
2, 128
2, 128 |
2, 131
|
2, 133
2, 136 |
2, 138
2, 141
21.5
2, 143 2, 146
2, 148 |
2, 151 |
2, 153
|
2, 156
2, 158
2, 161
|
2, 163
2, 166
21.6 2. 168 2, 171
2, 173
2, 176
2, 176 2, 178
2, 178
|
2, 181 |
2, 183
2, 186
2, 189
2. 191
21.7
2, 194❘ 2, 196
|
2, 199
2, 2012,
2,204
2,206 |
2, 209
|
2, 211
|
2,
2,214
2,216
21.8
2, 219 2. 221
2,224 | 2,227 2,229
2, 232 |
2, 234 |
2, 237
|
2, 239
2,242
21,9
2,244❘ 2, 247
2,250
2,252 | 2, 255
2, 257 |
2, 260
|
2,262
2, 265
2,268
22.0
2,270 2, 273
2,275
2,278 | 2, 280
|
2, 283 |
2, 286 |
2, 288 |
2, 291
2, 293
22.1
2, 296 | 2,299 | 2, 301
2, 304 | 2, 306
|
2, 309
2, 312 |
2, 314 |
2, 317
2, 319
22.2
2,322 2,325 | 2,327
2, 330
2, 333
2, 335
2, 338
2, 340
2, 343
2, 346
22.3
2, 348
2,351 2,354
2,356 | 2,359 |
2, 362 |
2, 364
2, 367❘
2, 369
2,372
22. 4
2,375
2,377 | 2, 380
|
2, 383 | 2, 385 |
2, 388
2, 391
2,393
2, 396
2,399
22.5
2, 401
2, 404 2, 407
2,409
2, 409
2,412 |
2, 415 |
2,
2,417
2,420❘ 2, 423
2, 425
22.6
2,428
2,431
2, 434
2, 436
2,439
2, 442
2, 444
2, 447|| 2, 450
2, 452
22.7
2,455
2, 458 |
2, 460
2, 463 | 2, 466
2, 469
2, 471
2,474
2, 477
2,479
22.8
2,482
2,485
2, 485
2, 488
2, 488
2, 490
2,490 | 2,493 |
2, 496 |
2, 499
2, 501
2, 504
2, 507
22.9
2, 510
2, 512
2, 515
2, 518 | 2, 520
|
2, 523
|
2, 526 |
2, 529 | 2, 531
2, 534
23.0
2, 537
2, 540
2, 543
2, 545 | 2, 548 |
2, 551
2, 554
2,556 | 2,559
2, 562
23. 1
2, 565
2,567
2,570
2,573
2, 576
2, 579
2,581
2, 584 2, 587
2, 590
23. 2
2,593
2,595
2, 598
2, 601
2, 601❘ 2, 604
2,606
2, 609❘
2, 612 | 2, 615
2,618
23. 3
2,621
2,623 |
2, 626
2, 629 | 2, 632
2.635
2,637
2,640 | 2,643
2,646
23.4
2,649 2,652 2, 654 | 2,657
2,660
2,663
2, 663
2, 666
2, 669 2, 671
|
2, 674
23.5
2,677 2.680
2,683
2,686
2, 689
2.691 2,694 2,697 2,700
2, 703
23.6
2,706 2,709 | 2, 711
2,714
23.7
2,734 | 2,737 2,740
23.8
2, 763
2,766 2,769
23.9
2,793
2, 717 | 2,720 | 2, 723 |
2,743 | 2, 746 | 2, 749 2,752
2, 772 | 2,775 | 2,778 | 2, 781
2,795 | 2,798 | 2, 801 2, 804 2, 807
2, 726 | 2,729
2,732
2,755 | 2,758
2, 760
2,784❘ 2, 787
2,790
2,810
2,813 2,816
2, 819
24.0
2,822
24. 1
2, 851
2,825 2,828 2,831 | 2,834 | 2,837 2,839
2,854 | 2,857 2,860 | 2,863 | 2, 866 | 2,869
2,842 | 2,845
2,848
2,872 | 2,875
2,878
24. 2
2,881
2, 884
24.3
2, 911
2.914
24. 4
2, 941
2, 953
2,887 2,890 2,893 | 2,896 | 2,899 | 2,902 | 2,905
2,917 2.920 2,923 | 2,926 2,929 2,932
2,932 2,935
2, 944 2,947 2,950
2,908
2, 938
2,956 2,959 | 2,962 | 2, 965
2, 968
24.5
2,971
24. 6
3,001
3,005 | 3,008
2,974 2,977 | 2,980 | 2, 983
3,011 | 3,014
2, 986
2, 989
2,992 | 2,995
2,998
3,017
3,020
3,023 | 3,026
3, 029
21.7
3,032
3, 035 | 3,038
3,041 3,044 | 3,047
3,051
3,054
3, 057
3, 060
24.8
3,063
3,066 | 3,069
3,072
3,075 | 3,078 | 3,081
3,085
3, 088
3, 091
24.9
3, 122
3,094
3, 119
3,097 | 3,100
3, 116
3, 103 | 3, 106 | 3, 109 | 3, 113
HYDRAULIC TABLES
275
Table 16.-Five-halves powers of numbers—Continued

Number .00
.01
.02
.03 3 .04 .0
.06
.07
.08
.09
25.0
3, 125 3, 128
3, 131
3, 134
3, 138
3,141
3, 144
25.1
3, 156
3, 147
3, 159
3,
3,150
3, 153
3, 163
3, 166
3, 169
3, 172
3, 175
25.2
3,178
3, 188
3, 191
3,182
3, 185
3, 194
3, 197
3, 197
3, 201
3, 204
3, 207
25.3
3,220
3,223
3, 210
3, 213
3,216
3,226
3, 229
3, 232
3, 236
3, 239
25.4
3, 252
3,242
3, 245
3,248
3,255
3, 258
3, 261
3, 264
3, 264
3, 268
3, 268
3, 271
3,274
3,277
3, 280
25.5
3,284
3,287
3, 290
3,293
3, 296
3,300
3, 303
3, 306
25.6
3, 316
3, 309
3, 313
3, 319
3, 322
3, 322
3,326
3,326
3, 329
3, 329
3, 332
3,335
3,
3,339
25.7
3,342
3, 345
3,348
3,352
3, 355
3, 358
3, 361
3,365
3,365
3, 368
3,371
3, 371
3, 374
25.8
3, 381
3, 378
3, 384
3,388
3,391
3, 394
3, 397
3, 401
3,404
3, 407
3, 411
25.9
3, 414
3, 417
3,420
3,424
3, 424
3,427
3, 430
3,434
3, 437
3,440
444
26.0
3, 447
3, 450
3, 454
3,454
3, 457
3, 457
3,460
3, 464
3, 464
3, 467
26.1
3, 480
3, 470
3, 484
3, 487
3,474
3,477
3, 490
3,494
494
3, 497
3, 497
3,500
26.2
3,504
3, 514
3, 507
3, 510
3, 517
3, 520
3,520
3, 524
3,524
3, 527
3, 530
3, 534
3, 537
26.3
3, 540
3, 544
3,547
3, 551
3, 554
3, 557
3, 561
3, 564
3, 564
26.4
3, 581
3, 567
3,
3,571
3,574
3, 584
3,578
3, 588
3,591
3, 595
3, 598
3,601
3,605
3, 608
3,612
26. 5
3, 615
3, 618
3,622
3, 625
3, 629
3,632
3, 636
26.6
3, 649
3, 653
3,636
3,639
3,642
3, 646
3,656
3,660
3,663
3, 666
3,670
3,673
26.7
3, 677
3, 684
3,680
3.687
3,691
3,694
3,697
3, 701
3, 704
3, 704
3, 708
3,711
3,715
26.8
3, 718
3, 722
3,725
3,729
3, 732
3, 736
3,736
3, 739
26.9
3,753
3, 743
3,746
3,750
3,757
3,760 3,763
3,767
3, 770
3,774
3, 777
3, 781
3,784
27.0
3, 788
3,792
3,795
3,799
3,802
3,806)
3,809
3,813
3,816
3,820
27.1
3,823
3, 827
3, 830
3,834 3,837
3, 841
3,844
3,848
3,851
27.2
3,859
3, 855
3,862
3, 866
3,869 3,873
3,876
3,880
880
27.3
3, 894
3,883
3, 898
3,887
3, 891
3,901
3,905| 3,908
3,912
3,916
3, 919
3,923
3,926
27.4
3, 930
3,933
3, 937
3,941 3,944
3,948
3,951
3,951
3,955
3,959
3,959
3,962
27.5
3,966 3,969
3,973
3,977
3,980
3,984
3,987
3,987
3,991
3,991
3,995
27.6
3,998
4,002
4,006
4, 009
4,013 4,016)
4, 020
4,024
27.7
4,038 4, 042
4,027
4, 031
4,035
4,046
4,049
4,053
4,057
4,060
27.8
4,064
4,068
4,071
4,075
4,079
4, 082
4,086
4, 090-
4, 093
097
4, 101
4, 104
27.9
4, 108
4, 112
4, 115
4,119
4, 119
4, 123
4, 126
4, 130
4, 134
4, 137
4, 141
4, 145
28.0
4, 149
4, 152
4,156
4,160
4,163
4, 163
4, 167
4, 171
4, 175
4,178
28.1
4, 182
4, 186
4, 189
4, 193
4, 197
4, 201
4, 204
4, 208
4, 212
4, 216
4, 219
28.2
4, 223
4, 227
4, 231
4, 234
4, 238
4, 242
28.3
4,261
4, 264 4, 268
4, 246
4, 249
4, 253
4, 257
4, 272
4, 276
4,276
4, 279
4, 283
4, 287
28.4
4, 298
4, 291
4, 295
4, 302
4, 306
4,310
4,313
4,317
4, 321
4,325
4,329
4,332
28.5
4,336
4, 340
4, 344
4,344
4, 348
4,351
4,355
4,359
4,359
4,363
4.367
28.6
4,371
4,374
4,378
4, 382
4,382
4,386
4,390
4,394
4,397
4,401
4, 405
4, 409
28.7
4, 413
4, 417
4, 420
4, 424
4, 428
4, 432
4, 436
4, 440
28.8
4,444
4, 447
4, 451
4, 455 4, 459
4, 463
4, 467
4, 471
4,474
4, 478
28.9
4,482
4, 486
4, 490
4, 494
4,498 4, 502
4, 506
4, 509
4,513
4, 517
4,521
4,525
29.0
4,529
4,533
4,537
4, 541
4, 545
4, 548
4, 552
4, 556
4, 560
29.1
4,564
4, 568 4, 572
4,576
4, 580
4, 584
4, 588
4,592
4, 596|
4,600
4,600
4,603
29.2
4,607
4, 611
4, 615
4, 619
4, 623
4,627
4, 631
4,635
4, 639
29.3
4, 643
4,647
4,651
4, 655
4, 659
4,663
4,667
4, 671
29.4
4,687 4, 691
4, 675
4, 679
4,683
4, 695
4, 699
4, 703
4,707
4, 707
4, 711
4,715
4,719
4,723
29. 5
4,727 4,731
4,735 4,739
4,743
4,747
4, 751
4,755
4,759
4,763
29.6
4,767 4, 771
4, 775
4, 779
4, 783
4,787
4,791
4, 795
4,799
4, 803
29.7 4,807
4,811
29.8
4,848 852 4, 856
4,815
4,819
4,823
4,827
4,832
4,836
4,840
4,844
4,860
4, 864
4, 868
4,868
4,872 4,876
4,880
4,884
29.9
4,913 4,917 4,921 4,925
4,889 4,893
4,909
4,897
4, 905
4,901
276
HYDRAULIC TABLES
Table 16.-Five-halves powers of numbers- Continued

Number
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
41
***** ***88 G**** ***G? SE884 38588 SIZE: 88688 RE22* PRESS
30
4, 930
4,971
5, 012
5,054
5,095
5, 137
5, 180
5, 222
5, 265
5, 308
5,308
31
5, 351
5, 394
5, 437
5, 481
5, 525
5, 569
5, 613
5, 658
5,703
5, 747
32
5,
793
5,838
5,884
5,929
5,975
6, 022
6, 068
6, 115
6, 161
6, 209
33
6, 256
6, 303
6, 351
6, 399
6, 447
6, 495
6, 544
6, 593
6, 642
6,691
34
6, 741
6, 790
6,840
6, 890
6, 941
6,991
7,042
7,093
7, 144
7, 196
35
7,247
7, 299
7,351
7, 403
7,456
7,509
7, 562
7,615
7,668
7,722
36
7,776
7,830
7,884
7,939
7,994
8, 049
8, 104
8, 160
8, 215
8, 271
37
8,327
8, 384
8,440
8, 497
8, 554
8, 611
8, 669
8,727
8,785
8, 843
38
8,901
8, 960
8,960
9,019
9,078
9, 138
9, 197
9, 257
9,317
9,377
9,438
39
9, 499
9,560
9, 621
9, 682
9, 744
9,806
9, 868
9,931
9, 993
10,056
40
10, 119 10, 183
10, 246
10, 310
10, 374
10, 438
10, 503
10, 568
10,633
10,698
10, 764 10, 829
10,895
10, 962
11, 028
11, 095
11, 162
11, 229
11, 296
11, 364
42
11, 432 11,500
11, 569
11, 637
11, 706
11,706
11, 775
11, 845
11, 914
11, 984
12, 054
43
12, 125 12, 195
12, 266
12, 337
12, 409
12, 480
12, 552
12, 624
12, 697
12, 769
44 12, 842 12, 915
12, 988
13, 062
13, 136|
13, 210
13, 284
13, 359
13, 434
13, 509
45
13, 584
13, 660
13, 736
13,812
13, 888
13, 965
14, 041
14, 119
14, 196
14, 274
46
14, 351 14, 430
14, 508
14, 587
14, 665
14,745
14, 824
14, 904
14,904
14, 984
15,064
47
15, 144
15, 225
15, 306
15, 387
15, 468
15, 550
15, 632
15, 714
15, 797
15, 880
48
15, 963 16,046
16, 129
16, 213
16, 297
16, 382
16, 466
16, 551|
16, 636
16, 721
49
16,
807 16,893
16, 979
17,065
17, 152
17, 239
17,326
17, 414
17, 501
17, 589
50
17,678 17,766
17,855
17,944
18, 033
18, 123
18, 213
18, 303
18, 393
18, 484
51
18, 575 18, 666
18, 757
18, 849
18, 941
19, 033
19, 126
19, 219
19, 312
19, 405
52
19, 499 19, 593
19, 687
19, 781
19, 876
19, 971
20, 066
20, 162
20, 257|
20, 354
53
20, 450 20, 546|
20, 643|
20, 740
20,838
20, 936
21, 034
21, 132
21, 230
21, 329
54
21, 428 21, 527
21, 627
21, 727
21,827
21, 928
22, 028
22, 129
22, 231
22, 332
55
22, 434 22, 536
22, 639
22, 741
22, 844
22,947
23, 051
23, 155
23, 259
23, 363
56
23, 468 23, 573
23, 678
23, 783
23, 889
23,995
24, 101
24, 208
24, 315
24, 422
57
24, 529 24,637
24, 745
24, 853
24, 962
25, 071
25, 180
25, 289
25, 399
25, 509
25, 619 25, 730
25, 841
25, 952
26,063
26, 175
26, 287
26, 399
26, 512
26, 625
59
26,
738 26, 852
26, 965
27, 079
27, 194
27, 308
27, 423
27, 538
27,654
27,769
60
27, 885 28,002
28, 118|
28, 235
28, 353
28, 470
28, 588
28, 706
28, 824
28, 943
81
29, 062 29, 181
29, 301
29, 421
29, 541
29, 661
29, 782
29, 903
30, 024
30, 146
62
30, 268 30, 390
30, 512
30, 635
30, 758
30, 882
31, 005
31, 129
31, 254
31, 378
63
31, 503 31, 628
31, 754
31, 879
32, 005
32, 132
32, 258
32, 385
32, 513
32, 640
84
32, 768 32, 896
33, 025
33, 153
33, 282
33, 412
33, 541
33, 671
33, 802
33, 932
65 34, 063 34, 194
34, 326
34, 457
34, 590
34, 722
34, 855
34, 988
35, 121
35, 254
66 35, 388 35, 523
35, 657
35, 792
35, 927
36, 062
36, 198
36, 334
36, 470
36, 607
67
36, 744 36, 881
37, 019
37, 157
37, 295
37, 433
37, 572
37, 711
37, 851
37, 990
38, 130 38, 271
38, 411
38, 552
38, 694
38, 835
38, 977
39, 119
39, 262
39, 405
69
39,
548 39, 691
39, 835
39, 979
40, 123
40, 268
40, 413
40, 559
40, 704
40, 850
70 40, 996
41, 143
41, 290
41, 437
41, 585
41, 732
41, 880
42, 029
42, 178
42, 327
71
42, 476
42, 626
42, 776
42, 926
43, 077
43, 228
43, 379
43, 531
43, 683
43, 835
72
43, 988
44, 141
44, 294
44, 447
44, 601
44, 755
44, 910
44,910|
45, 065
45, 220
45, 375
73
45, 531 45, 687
45, 843)
46, 000
46,000
46, 157
46, 315
46, 472
46, 630
46, 789
46, 947
46,947
74
47, 106
47, 266
47, 425
47, 585
47, 745
47, 906
48, 067
48, 228
48, 390
48, 552
75
48, 714 48, 876
49, 039
49, 203
49, 366
49, 530
49, 694
49, 859
50, 023
50, 189
76
50, 354 50, 520
50, 686
50, 852
51,019
51, 019
51, 186
51, 354
51, 521
51, 690
51, 858
51,858
77
52, 027 52, 196
52, 365
52, 535
52, 705
52, 875
53, 046
53, 217
53, 389
53, 560
78
53, 732 53, 905
54, 078
54, 251
54, 424
54, 598
54, 772
54, 946
55, 121
55, 296
79
55, 471 55, 647
55, 823
55, 999
56, 176
56, 353
56, 530
56, 708
56, 886
886
57, 065
HYDRAULIC TABLES
277
Table 16.—Five-halves powers of numbers—Continued

Number .0
.1
.2
.3
.4
.5
.8
.7
.8
.9
80
81
82
86
87
91
***** ***** 2788* *8-788
57, 243
57, 422
57, 602
57, 782
57,962
58, 142
58, 323
58, 504
58, 685
58,867
59, 049
59, 231
59, 414
59, 597
59, 781
59, 964
60, 149
60, 333
60, 518
60, 703
60, 888
61, 074
61, 260
61, 447
61, 634
61, 821
62, 008
62, 196
62, 384
62, 573
83 62, 762
62, 951
63, 141
63, 330
63, 521
63, 711
63, 902
64, 093
64, 285
64, 477
84
64, 669
64, 862
65, 055
65, 248
65, 442
65, 636
65, 830
66, 025
66, 220
66, 415
85 66, 611
66, 807
67, 004
67, 201
67, 398
67,398
67, 595
67, 793
67, 991
68, 190
68, 388
68, 588
68, 787
68, 987
69, 187
69, 388
69, 589
69, 790
69,992
70, 194|
70, 396
70, 599
70, 802
71, 005
71, 209
71, 413
71, 618
71, 822
72, 028
72, 233
72, 439
88
72, 645
72, 852|
73,059
73, 266|
73, 473|
73,681
73, 890|
74, 098|
74, 307|
74, 517
89 74, 727
74, 937
75, 147
75, 358
75, 569
75, 781
75, 992
76, 205
76, 417
76, 630
90 76, 843 77,057
77, 271
77, 485
77, 700
77, 915
78, 130
78, 346
78, 562
78, 779
78, 996
79, 213
79, 430
79, 648
79, 867
80, 085
80, 304|
80, 524
80, 743
80, 963
92
81, 184
81, 405
81, 626
81, 847
82, 069
82, 291
82, 514
82, 737
82, 960
83, 184
93 83, 408
83, 632
83, 857
84, 082
84, 308
84, 534
84, 760
84, 986
85, 213
85, 441
94
85, 668
85, 896
86, 125
86, 353|
86, 582
86, 812
87, 042
87, 272
87, 503
87, 734
95
87,965 88, 196
88, 429
88, 661
88, 894
89, 127
89, 360
89, 594
89,828
90, 063
96
90, 298
90, 533
90, 769
91, 005
91, 242
91, 478
91, 716
91, 953
92, 191|
92, 429
97
92, 668
92, 907
93, 146
93, 386
93, 626
93, 867
94, 108
94, 349
94, 590
94, 832
,
98
95, 075 95, 317
95, 561
95, 804
96, 048
96, 292
96, 537
96,782
97,027
97, 273
99
97, 519
97, 765
98, 012
98, 259
98, 507
98, 755
99, 003
99, 252
99, 501
99, 750
278
HYDRAULIC TABLES
Table 17.-Five-thirds powers of numbers

Number .00
.91
.02
.03
.04
.05
.06
.07
.08
.09
0.0
.0000 .0005 .0015
.0029
.0047
0068
0092
. 0119
0149 .0181
0.1
.0215 .0253
.0292
.0334
.0377
.0423
.0472
.0522
.0574
.0628
0.2
.0684 .0742
.0802
.0863
.0927
.0992
.1059
.1128
. 1198
.1271
0.3
. 1344
.1420
. 1497
.1576
.1656 1738
. 1822
.1907
.1994 .2082
•
0.4
. 2172
.2263
.2355 .2450
.2545
.2643
.2741
2841
.2943.3046
0.5
3150
3255
.3363
3471
3581
.3692
.3805
•
.3919.4034]
.4150
0.6
.4268
.4387 4508
4630
4753 .4877
5003
•
•
.5130 .5258 .5388
0.7
.5519
.5651 .5784
.5918
.6054 .6191
.6329
.6469 .6609
6751
0.8 .6894
0.9
.8390
.7038 .7184
.8545.8703 .8861
.7330
.7478
.7627
7777
.7929 .8081
.8235
.9020 .9181
.9342
.9505.9669|
.9834
1.0
1.000
1.017 1.034
1.050
1.068
1.085
1. 102
1. 119
1. 137
1. 154
1.1
1. 172
1.190 1.208
1.226
1.244
1. 262
1.281
1.299
1.318
1.336
1.2
1.355
1. 374
1.393
1.412
1.431
1.450
1.470
1.489
1.509
1. 529
1.3
1.548
1.568
1.588
1.608
1.629
1. 649
1.669
1.690 1.711
1.731
1.4
1.752 1.773
1.794 1.815
1.836
1.858
1.879
1.900
1.922
1.944
1.5
1.966
1.987
2.009
2.032
2.054
2.076
2.098
2. 121
2. 143
2.166
1.6
2. 189
2. 212
2. 235
2.258
2. 281
2.304
2.327
2.351
2. 374
2. 398
1.7
2.421
2.445
2.469
2.493
2. 517
2.541
2.566
2.590
2.614
2.639
1.8
2.664 2.688
2.713
2. 738
2.763
2.788
2. 813
2.838
2. 864
2.889
1.9 2.915 2.940
2.966
2.992
3.018
3.044
3.070
3.096
3.122
3. 148
2.0
3. 175
3. 201
3.228
3.255
3. 281
3.308
3.335 3.362
3.389
3.416
2.1
3. 444
3.471
3.499
3. 526
3.554
3.581
3.609
3.637 3.665
3.693
2.2
3.721
3.750
3.778
3.806
3.835
3.863
3.892
3.921
3.950
3.979
2.3
4.008 4.037
4.066
4.095
4. 124
4. 154
4. 183
4. 213
4.243
4. 272
2.4
4.302 4.332 4.362
4.392
4.422
4.453
4.483
4. 513
4.544
4. 574
2.5 4.605
4.636
4.667 4.698
4.728
4.760
4.791
4.822
4.853
4.885
2.6
4.916
4.948
4.979
5.011
5.043
5.075
5. 107
5. 139
5. 171
5. 203
2.7
5. 235
5. 268
5.300
5. 333
5.365
5.398
5.431
5.463 5.496
5. 529
2.8
5.562
5.596
5.629
5. 662
5.695
5. 729
5. 762
5.796 | 5.830
5. 864
2.9
5.897 5.931 5.965
5.999
6.034
6.068
6. 102
6. 137
6. 171
6. 206
3.0
6.240
3.1
6. 275 6.310 6.345
6.591 6.626
3.2 6.949 6.985 7.021 7.058
6.380
6.415
6.450
6.662 6.697
6.733
6.769
7.094
7. 131
3.3 7.315 7.352 7.389
7.426 7.463
7.500
3.4
7.688 7.725 7.763
7.801
7.839
7.877
6.485
6.805 6.841 6.877 6.913
7.167 7.204 7.241 7.278
7.538 7.575 7.613 7.650
7.915
7.953 7.992 8.030
6.520
6.555
3.5
3.6
TO CO
8.068
8.107 8. 145
8.184
8. 223
8.261
8.300 8.339 8.378 8.417
8.456 8.495
8.535
8. 574
8.613
8.653
8.692
8.732 8.772 8.811
3.7
8.851 8.891 8.931
8.971
3.8 9.253 9.294 9.335
3.9 9.663 9.704 9.746
9.376
9.011 9.051
9.416 9.457 9.498
9.787 9.829
9.092
9. 132
9.172 9.213
9.539
9.580 9.622
9.870 9.912
9.954 9.996 10.04
4.0 10.08 10. 12
10. 16
10.21 10.25
10.29 10.33 10.38 10.42 10.46
4.1 10.50
10.55
10.59
10.63 10.67
10.72
10.76
10.80
10.85
10.89
4.4 11.81 11.86 11.90
4.2 10.93 10.98 11.02 11.06 11.11
4.3 11.37 11.41 11.46 11.50 11.55
11.95 11.99
11. 15
11.19
11. 24
11. 28
11.33
11.59
11.64
11.68
11.73
11.77
12.04
12.08
12. 13
12. 17
12.22
4.5 12.27 12.31 12.36
12.40 12.45
12.49 12.54
12.59
12.63
12.68
4.6 12.72
12.77
4.7 13. 19
13. 23
12.82
13.28 13. 33
12.86
12.91
12.95 13.00
13.05
13.09
13. 14
13.38
13.42
13.47
13. 52
13.56
13. 61
4.813.66
13.71
13.75
13.80
13.85
13.90 13.94
13.99
14.04
14.09
4.9 14. 14
14.57
14. 18
14. 52
14.23 14.28 14.33
14. 47
14.38 14. 43
HYDRAULIC TABLES
279
Table 17.-Five-thirds powers of numbers-Continued

Number 00
01
02
03
.04
05
06
07
08
•
·
09
5.0
14.62
14. 67
14.72
14.77
14.82
14.86
14.91
14.96
15.01
5.1
15. 11
15. 16
15. 21
15. 26
15.31
15. 36
15. 41
15.46
15.51
5.2
15.61
15.66
15. 71
15. 76
15. 81
15.86
15.91
15.96
16. 01
15.06
15. 56
16.06
5.3
16. 11
16.16
16. 21
16.26
16.31
16. 37
16.42
16. 47
16.52
16. 57
5.4
16. 62
16.67
16. 72
16.78
16.83
16.88
16.93
16.98
17.03
17.09
5.5 17.14
17.19
17.24
17.29
17.35
17.40
17.45
17.50 17.55
17.61
5.6
17.66
17.71
17.76
17.82
17.87 17.92
17.98
18.03
18.08
18. 14
5.7
18. 19
18. 24
18. 29
18.35
18.40
18.45 18.51
18.56
18.62
18.67
5.8
18.72
18.78
18.83
18.88
18.94
18.99 19.05
19. 10
19. 16
19.21
5.9
19.26
19.32
19.37
19. 43
19.48
19.54
19.59
19.65
19.70
19.76
6.0
19.81
19.87
19.92
19.98
20.03
20.09
20.14
20. 20
20.25
20.31
6. 1
20.36
20.42
20.48 | 20.53
20.59
20.64
20.70 | 20.76
20.81
20.87
6.2
20.92
20. 98
21.04 21.09
21.15
21.21
21.26 21.32
21.38
21.43
6.3
21.49 21.55 21.60 21.66 21.72
21.77
21.77 21.83 21.89
21.95
22.00
6.4
22.06 | 22.12 | 22. 18 | 22. 23 | 22.29 |
22.35 | 22.41 | 22.47
22.52
22.58
6.5
6.6
23.22❘ 23. 28
22.64 22.70 | 22.76 | 22.81 22.87
23.34 23.40 | 23. 46
22.93 22.99 23.05
23.52 23.58 23.63
23. 11
23. 16
23. 69
23.75
6.7
23.81
23.87
23.93
23.99
24.05
24. 11❘
24. 17 |
24. 23
24. 29
24. 35
6.3
24. 41
24. 47
24. 53
24. 59
24. 65
24.71
24. 77
24. 83
24. 89
24.95
6.9
25.01
25.07
25. 13
25. 19
25.25 | 25. 31
25.37
25.43
25.49
25.55
7.0 25.62 | 25.68 | 25.74
25.80
25.86
25.92
25.98
26. 04
26. 10
26. 17
7.1 26.23 26. 29 | 26.35
26. 41
26.47
26. 54
26.60
26.66
26.72
26.78
7.2 26.85 26.91 26.97
27.03
27.10
27.16
27.22 | 27. 28
27.35
27.41
7.3
27.47 | 27. 53
27.60
27.66
27.72 |
27. 79
27.85 27.91
27.97
28.04
7.4 | 28. 10 | 28.16
28.23
28.29
28.35
28.42 | 28.48 | 28. 55
28. 61
28.67
7.5
28.74 | 28.80 | 28.86 | 28.93
28.99 29.06❘ 29. 12 | 29. 19
29.25
29.31
7.6 29.38
29.38
7.7
30.03
29. 44 29.51 29. 57
30.09 30.16
29.64 | 29.70 | 29.77 29.83
29.90
29.96
30.22 | 30. 29
30.35 30.42 | 30.48
30.55
30. 61
7.8
30.68
7.9
30.74 | 30.81 | 30.87 30.94
31.34 31. 40 | 31.47 31.53
31.01 31.07
31. 14
31.20
31. 27
31.60
31.67
31.73
31.80
31.87
31.93
8.0
32.00 | 32.07 | 32. 13 | 32. 20
32.27 32.33
32.40 | 32. 47
32.54
32.60
8.1
32.67
32.67 | 32.74 32.80
32.87
32.94 | 33.01
33.07
33. 14
33. 21
33.28
8.2
33.34 33.41
33.48
33.55
33.62 33.68
33.75
33.82
33.89
33.96
8.3
34.02
34.09
34. 16
34.23 34.30
34.37
34.44
34.50 34.57
34.64
8.4 34.71 34.78
34.85
34.92 34.99
35.06
35. 13
35. 19 | 35. 26
35.33
8.5
35.40 35. 47
35. 54
35.61 35.68
35.75
35.82
35.89
35.96
36.03
8.6 36.10 36.17 | 36. 24
36.31 36.38
36.45
36.52 36.59
36.66
36.73
8.7 36.80 | 36.87
36. 94
37.01 37.08
37.15
37.23 37.30
37.37
37.44
8.8 37.51 37.58
37.65
37.72 37.79
37.87
37.94 38.01
38. 08
38. 15
8.9 38.22 38.29
38.37
38.44 38.51
38.58
38.65 | 38.72
38.72
38.80
38.87
9.0 38.94 39.01
39.09
39. 16 39.23
39.30
39.37
39. 45
39.52
39.59
9.1 39.66 39.74 39.81
9.2 40.39 40.47 40.54
9.3 41.13 41.20 41.28 41.35 41.42
9.4 41.87 41.94 | 42.02 | 42.09 42.17
39.88
39.96
40.03
40. 10
40. 17
40.25
40.32
40.61 40.69
40.76
40.83 | 40.91
40.98
41.05
41.50
41.57 41.65
41. 72
41.79
42.24 | 42.31
42.31
42.39
42. 46
42.54
9.6
9.5 42.61 42.69 | 42.76 42.84 42.91
43.36 43.44 | 43.51 43.59 43.66
42.99
43.06❘ 43.14
43. 21
43.29
43.74
43.82
43.89
43.97
44. 04
9.7
44.12
44. 19
44.27
44.35
44.42
44.50
44.57
44. 65
44.73
44.80
9.8
44.88
44.96
45. 03
45.11
45. 18
45.26
45. 34
45. 41
45. 49
45. 57
9.9
46.34
45.64 45.72
46. 26
45.80
46.18
45.88
46. 11
45.95 | 46.03
280
HYDRAULIC TABLES
Table 17.-Five-thirds powers of numbers-Continued


Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
10.0 46.42
46.49
46.57
46.65 46.73
10. 1
47.19
47.27
47.35
47.43
47.50
10.2 47.97
48.05
48. 13
48. 21
48. 29
46.80 46.88 46.96 47.04
47.58 47.66 47.74 47.82
48.37
47. 11
47.90
48.44 48.52
48.60
48.68
10.3 48.76
48.84
48.92 | 49.00
49.08
49.15
49.23 49.31 49.39
49.47
10.4❘ 49.55
49.63
49.71 49.79
49.87
49.95
50.03 50.11 50.19
50.27
10.5 50.35
50.43
50. 51
50.59
50.67
50.75 50.83
50.91
50.99
51.07
10. 6
51.15
51.23
51.31
51.39
51.47
51.55
51.63
51. 71
51.79
51.88
10. 7
51.96
52.04
52.12
52. 20
52. 28
52.36
52.44
52.52
52.61
52.69
10.8
52.77
52.85
52.93
53. 01
53.09
53.18
53.26
53.34
53.42
53.50
10.9
53.59
53. 67
53.75
53.83
53.91
54.00
54.08
54. 16
54. 24
54.32
11.0
54. 41
54. 49
54.57
54. 65
54. 74
54.82
54.90
54.99
55. 07
55. 15
11. 1
55.23
55.32
55.40
55. 48
55. 57
55.65
55.73❘ 55.82
55.90
55.98
11. 2
56.07
56. 15
56.23
56.32
56.40
56.48
56. 57
56.65
56.73
56.82
11.3
56.90
56.99
57.07 57.15
57.24
57.32
57.41
57.49 57.58
57.66
11.4
57.74 57.83
57.91 58.00
58.08
58.17
58.25
58.34 58.42
58. 51
11.5 58.59 58.68
11.6 59.44 59.53
11.7 60.30 60.38
11.8 61.16 61.25
58.76
58.85 58.93
59.02
59.10
59.19
59.27
59.36
59.61 59.70
60.47 60.56
59.78
60.64
59.87
59.96 60.04
60.13
60. 21
61.33
61.42
11,9
62.03 62.11
62. 20
62.29
60.73
61.51 61.59 61.68 61.77
62.37 62.46
60.82 60.90
60.99
61.07
61.85
61.94
62.55 62.64
62.72
62.81
12.0
62.90 62.99 63.07
63.16
63.25
63.34
63.42
63.51 63.60 63.69
12. 1
63.77
63.86
63.95 64.04
64.13
64. 21
64.30
64.39
64.48
64.57
12.2
64. 65
64.74
64.83 64.92 65.01
65.10
65. 19
65. 27
65.36
65.45
12.3
65. 54
65.63
65.72
65.81
65.90
65.98
66. 07
66. 16
66.25
66.34
12.4
66. 43
66. 52
66.61
66.70
66.79
66.88
66.97
67.06
67.15
67.24
12.5
67.33 67.42
67.51
67.60
67.69
67.78
67.87 67.96 68.05
68. 14
12.6 68.23 68.32 68.41
68.50
68.59
68.68
68.77 | 68.86 | 68.95
69.04
12.7
69.13
69.22
69.31 69.40 69.49
69.59
69.68 69.77 69.86
69.95
12.8
70.04
70. 13
12,9
70.95
71.05
70.22 70.31 70.41 70.50
71.14 71.23
70.59
70.68 70.77
70.86
71.32
71.41
71.51
71.60 71.69
71.78
13.0
71.87 71.97 72.06
72.15
72.24
72. 34
72.34
72.43
72.52
72.61
72.71
13. 1
72.80 72.89
72.98
73.08
73.17
73.26
73.35 73.45
73.54
73.63
13.2
73.73 73.82 73.91
74. 01
74.10
74.19
74.29
74.38
74. 47
74.57
13.3
74.66 74.75 74.85
74.94
75.03
75. 13
75.22
75.32
75.41
75.50
13. 4
75.60 75.69 75.79
75.88
75.97
76.07
76.16 76.26
76.35
76.45
13. 5
76.54 76.63 76.73
76.82
76.92
77.01
77.11 77.20 77.30
77.39
13. 6
77.49
77.58 77.68 77.77
77.87
77.96
78.06 78.15 78.25
78.34
13.7
13. 8
13.9
78.44
78.53 78.63 78.73
79.40 79.49 79.59 79.68
80.36 80.45 80.55 80.65
78.82
78.92
79.01 79.11 79.20
79.30
79.78 79.88 79.97
80.74 | 80.84 | 80.94
80.07 80.16
80.26
81.03
81.13
81.23
14. 0
14. 1
14.2
83. 27
14.3
84.25
84.64
14.4
85.23
85.33 85.43
85.63
81.32 | 81.42 | 81.52 81.61 81.71 81.81 81.90
82.29 82.39 82.49 82.59 | 82.68 | 82.78 82.88
83.37 83.46 | 83.56 83.66 83.76 83.86
84.35 84.44 84. 54
84.84 84.94 85.04
85.53
85.82 | 85.92 | 86.02
82.00
82. 10
82.20
82.98
83.07
83.17
83.95 84.05
84.15
84.74
85.13
85.73
86. 12
14.5
86.22 86.32 86.42 86.52
86. 62
86.72
86.82 86.92 | 87.02
87.11
14.6
87.21 87.31 87.41 87.51
87.61
87. 71
87.81 87.91 88.01
88.11
14.7 88.21 88.31 88.41 88.51
88.61
88.71
88.81 88.91 89.01
89. 11
14.8 89.21
89.32 | 89.42 | 89.52 | 89.62
89.72
89.82 | 89.92 | 90.02
90.12
14.9
91.13
90. 22
90.83 90.93 91.03
90 32 90.42 | 90.52 90.63
90.73
HYDRAULIC TABLES
281
Table 17.-Five-thirds powers of numbers—Continued

Number
.00
.01
02
03
04 .05
06 .07
08
09
•
·
15.0
91.23 91.33 91.44
91.54 91.64
91.74 91.84 91.94
92.05
92.15
15. 1
92.25 92.35
92.45
92.55
92.66
92.76 92.86 92.96
93.06
93. 17
15.2
93.27 93.37
93.47
93.58
93.68
93.78 93.88 93.99
94.09
94. 19
15. 3
94.29 94.40
94.50
94.60
94. 71
15.4
95.32
95.43
95, 53
95.63
95.74
94.81 94.91
95.84
95.01 95. 12
95. 22
95.94
96.05 | 96.15
96.25
15.5
96.36
96.46 | 96. 56
96.67
96.77
96.88 96.98
97.08 97.19
97.29
15. 6
97.40
97.50 97.60
97.71
97.81
97.92
98.02
98.02
98.13 | 98.23
98.33
15.7
98.44 98.54
98.65
98.75
98.86 98.96
99.07
99.17 | 99. 28
99.38
15.8
99.49 99.59
99.70
99.80
99.91 100.0
100. 1
100. 2
100.3
100. 4
15.9 100.5 100.6
100. 7
100.9
101.0
101.1
101.2
101.3
101.4
101.5
16.0 101.6 101.7
101.8
101.9
102.0
102. 1
102. 2
102.3
102.4
102.5
16.1 102.7 102.8
102.9
103.0
103. 1
103.2
103.3
103. 4
103.5
103.6
16.2 103.7 103.8
103.9
104. 0
104. 1
104.3
104. 4
104. 5
104.6
104.7
16,3 104.8
104.9
105. 0
105. 1
105. 2
105.3
105. 4
105.5
105. 6
105.8
16.4 105.9
106. 0
106. 1
106. 2
106.3
106. 4
106. 5
106.6
106.7
106.8
16.5 106.9
107.0
107.2
107.3
107.4
107.5 107.6
107.7
107.8
107.9
16,6 108.0
108. 1
108.2
108.3
108. 5
108.6 108.7 108.8
108.9
109.0
16.7 109.1
109.2
109.3
109.4
109.5
109.7
109.8
109.9
110.0
110.1
16.8 110.2 110.3
110. 4
110.5 110.6
110.7 110.9
111.0
111. 1
111.2
16.9 111.3
111.4
111.5
111.6
111.7
111.8
112.0
112. 1
112.2
112. 3
17.0 112.4
112.5
112. 6
112.7
112.8
112.9
113.1
113.2
113.3
113. 4
17.1 113.5
113. 6
113. 7
113.8
113.9
114. 1
114.2
114.3
114.4
114.5
17.2 114.6
114.7
114.8
114.9
115.1
115.2
115.3
115. 4
115. 5
115.6
17.3 115.7 115.8 115.9
116.1
116. 2
116. 3
116. 4
116. 5
116. 6
116.7
17.4 116.8 116.9
117.1
117.2
117.3
117.4
117.5
117.6
117.7
117.8
17.5 118.0 118. 1
118. 2
118. 3
118.4
118. 5
118.6
118.7
118.9
119.0
17.6 119.1
17.7 120.2 120.3
119.2
119.3
119.4
119.5
119.6
119.8
119.9 120.0
120.1
120.4 120.6
120.7
120.8
120.9
121.0 121.1
121.2
17.8 121.3 121.5
17.9 122.5 122.6
18.0 123.6 123.7 123.9
18.1 124.8 124.9 125.0
18.2 125.9 126.0 126.2
18.3 127.1 127.2 127.3
18.4 128.2 128.4 128.5
121.6 121.7 121.8
121.9
122.0 122.1
122.3
122.4
122.7
122.8
122.9
123.1
123.2 123.3
123.4
123.5
124. 0
124.1
124. 2
124. 3
124. 4
124.5
124.7
125. 1 125.2
125.4
125, 5
125.6
125.7
125.8
126.3
126.4
126. 5
126.6
126.7
126.9
127.0
127.4 127.5
127.7
127.8 127.9
128.0
128. 1
128.6 128.7
128.8
128.9
129.1 129.2
129.3
18.5 129.4
18.6130.6
18.7 131.7
129.5 129.6 129.8
130.7 130.8 130.9 131.0
131.9 132.0 132.1
129.9
130.0 130.1
131.2 131.3 131.4
130.2 130.3
130.5
131.5
131.6
132.2 132.3 132.5 132.6
132.7
132.8
18.8 132.9
133.0 133.2
133.3
133. 4
133.5
133.6
133.7
133.9
134.0
18.9 134.1
134. 2
134.3
134. 5
134. 6
134.7
134.8 134.9
135,0
135. 2
19.0 135.3
135.4 135.5
135.6
135.8
135.9
136.0
136. 1
136. 2
136.4
19.1 136.5 136.6 136.7
136.8
137.0
137.1
137.2
137.3
137.4
137.5
19.2 137.7 137.8 137.9 138.0
138.1
138. 3
138. 4
138.5
138.6
138.7
19.3 138.9
19.4 140.1
139.0 139.1 139.2 139.3
140.2
139.5
139.6
139.7 139.8
139.9
140.3 140.4
140.5
140.7
140.8
140.9 141.0
141. 2
19,5 141.3
141.4 141.5 141.6
141.8 141.9
142.0
142. 1
142.2
142.4
19, 6142.5
19.7143.7
19.8 144.9
142.6 142.7
142.8
143.0
143.1
143. 2
143.3
143.5
143.6
143.8 143.9 144. 1
144. 2
144.3
144.4
144. 5
144.7
144.8
145.0 145.2
145.3
145. 4
145.5
145.6
145.8
145.9
146.0
19.9 146. 1
146.3 146.4 146.5
146.6 146.7
146.9
147.0
147.1
147.2
563189°-44. -19
282
HYDRAULIC TABLES
Table 17.-Five-thirds powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
20.0
147. 4
147. 5 147.6
147.7
147.9
148.0
148. 1
148. 2
148.3
148.5
20.1
148.6
148. 7
148.8
149.0
149. 1
149.2
149.3
149.5
149.6
149.7
20.2
149.8
149.9
150. 1
150. 2
150. 3
150. 4
150. 6
150. 7
150.8
150.9
20.3
151. 1
151. 2
151.3
151.4
151.6
151.7
151.8
151.9
152. 1
152.2
20.4
152.3
152.4
152.6
152. 7
152.8
152.9
153. 1
153.2
153.3
153.4
20.5
153.6
153.7
153.8
153.9
154. 1
154.2
154.3
154. 4
154.6
154.7
20. 6
154.8
154.9
155. 1
155.2
155.3
155.4
155. 6
155.7
155.8
155.9
20.7
156. 1
156.2
156.3
156.4
156.6
156.7
156.8
156.9
157.1
157.2
20.8
157.3
157.4
157.6 157.7 157.8
157.9
158. 1
158. 2
158.3
158.5
20.9
158.6
158.7
158.8
159.0
159.1 159.2
159.3
159.5
159.6
159.7
21.0
159.8
160.0
160.1
160.2
160.4
160.5
160.6
160.7
160.9
161.0
21.1
161. 1
161. 2
161. 4
161.5
161.6
161.8
161.9
162.0
162. 1
162. 3
21.2
162. 4
162.5
162.6
162.8
162.9
163.0
163. 2
163.3
163.4
163.5
21.3
163.7
163.8
163.9
164. 1
164. 2
164. 3
164.4
164.6
164.7
164.8
21. 4
165.0
165. 1
165. 2
165. 3
165. 5
165. 6
165.7
165.9 166.0
166.1
21. 5
166.2
166. 4
166.5
166.6
166.8
166.9
167.0
167. 1
167.3
167. 4
21.6
167.5
167.7
167.8
167.9
168.0
168. 2
168.3
168.4
168. 6
168.7
21.7 168.8
169.0
169. 1
169.2
169.3
169.5
169.6
169. 7
169.9
170.0
21.8 170.1
170.3
170.4
1.70.5
170.6
170.8
170.9
171.0
171. 2
171.3
21.9
171. 4
171.6
171.7
171.8
171.9
172.1 172.2
172.3
172.5
172.6
22.0
172.7
172.9
173.0
173. 1
173.3 173.4
173.5
173.6
173.8
173.9
22.
1
174.0
174. 2
174.3
174.4
174.6 174.7
174.8
175.0
175. 1
175. 2
22.2
175.4
175.5
175.6
175.8
175.9 176.0
176. 1
176.3
176. 4
176.5
22.3
176.7
176.8
176.9
177. 1
177.2
177.3
177.5
177.6
177.7
177.9
22.4
178.0 178. 1
178.3
178.4
178.5 178.7
178.8
178.9
179. 1
179.2
22.5 179.3 179.5
179.6
179.7
179.9
180.0
180.1
180.3
180, 4
180.5
22.6 180.7
180.8
180.9
181. 1
181.2
181.3
181.5
181.6
181.7
181.9
22.7
182.0 182. 1
182.3
182.4
182.5
182.7
182.8
182.9
183. 1
183. 2
22.8 183.3
183.5
183.6
183.7
183.9
184.0
184. 1
184. 3
184. 4
184.5
22.9
184.7
184.8
184.9
185. 1
185. 2
185. 3
185.5
185. 6
185.7
185.9
23.0
186.0
186. 1
186. 3
186. 4
186.6
186.7
186.8
187.0
187. 1
187.2
23, 1
187.4
187.5
187.6
187.8
187.9
188.0
188.2
188. 3
188.4
188.6
23. 2
188.7
188.9
189.0
189. 1
189.3
189.4
189.5
189.7
189.8
189.9
23.3
190. 1
190. 2
190. 3
190. 5
190.6
190.8
190.9
191.0
191. 2
191.3
23.4
191.4
191. 6
191.7
191.8
192.0 192.1
192. 3
192. 4
192.5
192.7
23.5
192.8
192.9 | 193. 1 | 193.2
193.3
193.5 193.6
193.8
193.9
194.0
23.6
194. 2
194. 3
194. 4
194.6
194.7
194.9
195.0
195. 1
195.3
195.4
23.7
195.5
195.7
195.8
196.0
196. 1
196.2 196.4
196. 5
196. 6
196.8
23.8
196.9
197. 1
197.2 197.3
197.5
197.6 197.8
197.9
198.0
198.2
23,9
198.3
198.4
198.6
198.7 198.9
199.0
199.1
199.3
199.4
199.5
24.0 199.7
199.8 200.0
200. 1
200. 2
200.4
200.5
200.7
200.8
200.9
24.1
201.1
201.2 | 201.4
201.5
201.6
201.8
201.9
202. 1
202. 2
202.3
24.2 202.5
202.6 | 202. 7
202.9
203.0
203. 2
203.3
203. 4
203.6
203.7
24.3 203.9
204.0 204, 1 204.3
204.4
204.6
204.7
204. 8
205.0
205. 1
24. 4
205.3
205.4 205, 5 205.7
205.8
206. 0
206. 1
206.2
206.4
206.5
24.5
206.7
206.8 207.0 207.1
207.2
207.4
207.5
207.7 207.8
207.9
24.6
208. 1
208.2
208.4 | 208.5
208.6
208.8 208.9
209.1
209.2
209.3
24.7
209. 5
209. 6
209.8
209.9
210. 1
210.2 | 210. 3
210.5
210.6
210.8
24.8
210. 9
211.0
211, 2
211.3
211.5
211.6
211.8
211.9
212.0
212. 2
24.9
213. 6
212. 3
213.5
212. 5
213. 3
212.6
213. 2
212.8 212.9
213.0
HYDRAULIC TABLES
283
Table 17.-Five-thirds powers of numbers- -Continued


Number
00
.01
•
.02
03
04
•
· 05
.06
.07
08
.09
25.0 213.7
213.9
214.0
214. 2
214.3
214.5
214. 6
214. 7
214.9
215.0
25.1 215.2
215. 3
215. 5
215.6
215.7
215.9
216.0
216.2
216.3
216. 5
25.2
216.6
216.7
216.9
217.0
217.2
217.3
217.5
217.6 217.8
217.9
25.3 218.0
218. 2
218.3
218.5 218.6
218.8
218.9
219.0
219.2
219.3
25.4
219.5
219.6
219.8
219.9 220.1
220.2
220.3
220.5
220.6
220.8
25.5
220.9
221.1
221.2 221.4
221.5
221.6
221.8
221.9
222. 1
222.2
25.6
222. 4
222.5
222.7
222.8
222.9
223. 1
223.2
223. 4
223.5
223.7
25.7
223.8 224.0
224. 1
224.3
224.4
224.5
224.7
224.8
225.0
225. 1
25.8 225.3 225.4
225.6
225.7
225.9
226.0
226. 1
226. 3
226.4
226. 6
25.9
226.7 226.9
227.0
227.2 227.3
227.5
227.6
227.7
227.9
228.0
26.0
228.2
228.3 228.5
228.6
228.8
228.9
229. 1
229. 2
229.4
229.5
26.1
229.7
229.8
229.9
230. 1
230. 2
230.4
230.5
230.7
230.8
231.0
26.2
231. 1
231.3
231.4
231.6
231.7
231.9
232.0
232. 1
232, 3
232. 4
26.3
232.6
232.7
232.9
233.0
233. 2
233. 3
233.5
233.6
233.8
233.9
26.4
234. 1
234. 2
234.4
234.5
234.7
234.8
235.0
235. 1
235. 3
235. 4
26.5
235.5
235.7 235.8
236.0
236. 1
236. 3
236. 4
236.6
236.7
236.9
26.6
237.0 237.2
237.3
237.5
237.6
237.8
237.9
238. 1
238.2
238.4
26.7
238.5
238.7
238.8
239.0 239.1
239.3
239.4
239.6 239.7
239.9
26.8 240.0
240. 2
240. 3
240.5
240.6
240.8
240.9
241.1| 241.2
241.4
26.9
241.5
241.7
241.8
242.0
242. 1
242. 3
242. 4
242.6
242.7
242.9
27.0
243.0
243.2
243.3
243.5
243.6
243.8
243.9
244. 1
244.2
244.4
27.1
244. 5
244.7
244.8
245.0
245. 1
245. 3
245.4
245.6
245.7
245.9
27.2 246.0
246. 2
246.3
246. 5
246. 6
246.8
246.9
247. 1
247.2
247.4
27.3 247.5
247.7
247.8
248.0
248. 1
248.3
248. 4
248.6
248.7
248.9
27.4 249.0
249.2
249.3
249.5
249.6
249.8
249.9
250. 1
250.2
250.4
256. 6
27.5 250.5 250.7 250.8
27.6 252.1 252.2 252.4
27.7 253.6 253.7 253.9 254.0 254.2
27.8 255.1 255.3 255.4 255.6 255.7
27.9
256.8 257.0 | 257.1 257.3
251.0 251.2
251.3
251.5
251.6
251.8
251.9
252.5 252.7
252.8
253.0
253. 1
253.3
253.4
254.4
254. 5
254. 7
254.8
255.0
255.9 256.0
256.2
256.3
256.5
257.4 257.6
257.7
257.9
258.0
28.0 258.2
28.1❘ 259.7 259.9
28.2 261.3 261.4
28.3 262.8 263.0
28.4 264.4 264.5
258.3
258.5 258.6
258.8
259.0❘ 259. 1
259.3 259.4
259.6
260.0 | 260.2
260.3
260.5
260.6 260.8 261.0
261.1
261.6
261.7
261.9
262.0
262.2❘ 262.3 | 262.5
262.7
263. 1
263. 3
263. 4
263.6
263.7 263.9
264. 1
264. 2
264.7
264. 8
265.0
265.1
265.3
265. 4
265. 6
265.8
28.5❘ 265.9
28.6 267.5
266. 1
266. 2 | 266. 4
266.5
266.7
266. 8
267.0
267.2
267.3
267.6
267.8
267.9
268. 1
268.3
268.4
268. 6
268.7
268.9
28.7
269.0 269.2
269. 3
269.5 | 269. 7
269.8
270.0
270.1❘ 270. 3
270.4
28.8 270.6
270.8
270.9
271. 1
271.2
271.4
271.5
271.7 271.8
272.0
28.9❘ 272.2
272.3 272,5
272.6
272.8
272.9
273. 1
273.3
273.4
273.6
29.0 273.7
273.9 274.0
274. 2
274.4
274.5
274.7
274.8
275.0
275. 2
29.1❘ 275.3 275.5 275.6
275.8 275.9
276. 1
276. 3
276.4 | 276. 6
276.7
29.2 276.9 277.0 277.2 277.4 277.5
277.7
277.8
278.0
278, 2
278.3
29.3❘ 278.5 278.6 278.8 278.9 279.1
29.4 | 280.1 | 280.2 280.4
279.3
279.4
279.6
279.7
279.9
280.5 | 280.7 280.9
281.0
281.2
281, 3
281.5
29.5
281.6 281.8
29.6
283. 2❘
283. 4
282.0
283.6
282. 1 282.3 282.4
282.6
282.8
282.9
283. 1
283.7 283.9 284.0
284.2
284.4
284.5
284.7
29.7 284.8 285.0 | 285. 2
29.8 286.4 286.6 286.8
285.3 285.5 285.6
285.8 286.0
286. 1
286.3
286.9 287.1 287.2
287.4
287.6
287.7
287.9
29.9❘ 288.0 288. 2
289.5
288.4
289.3
288.5 288.7 288.8 289.0 289.2
284
HYDRAULIC TABLES
Table 17.-Five-thirds powers of numbers- -Continued

Number 0
.1
•2
.3
.4
.5
.6
.8
9
***** ***** 28287 28828 ***** ****: AARDE PEREL ***** *w❀❀❀
30
31
289.6
291.3
292.9
294.5
296. 1
297.7
299.4
301.0
302. 6
304.3
305.9
307.6
309. 2
310.9
312.5
314. 2
315.8
317.5
319.2
320.9
32
322.5
324. 2
325.9
327.6
329.3
331.0
332.7
334.4
336. 1
337.8
33
339.5
341. 2|
342.9
344. 7
346. 4
348. 1
349.91
351.6
353.3
355. 1
34
356.8
358. 6
360.3
362. 1
363.9
365.6
367. 4
369.2
370.9
372.7
35
374.5
376.3
378. 1
379.9
381.7
383. 5
385.3
387. 1
388.9
390.7
36
392.5
394. 3
396. 1
398.0
399.8
401.6
403.5
405.3
407.1
409.0
37
410.8
412.7
414. 5
416. 4
418.3
420. 1
422. 0
423.9
425.7
427.6
38
429.5
431. 4
433.3
435. 2
437. 1
439.0
440.9
442.8
444. 7
446. 6
39
448.5
450. 4
452.4
454. 3
456. 2
458.1
460. 1
462. 0
464.0
465.9
40
467.8
469.8
471.7
473.7
475.7
477.6
479.6
481.6
483.5
485. 5
41 487.5
489.5
491.5
493.5
495. 5
497.4
499.4
501.4
503. 5
505.5
42
507.5
509. 5
511.5
513.5
515. 6
517.6
519.6
521.7
523.7
525.7
43
527.8
529.8
531.9
533.9
536.0
538.0
540.1
542.2
544. 2
546. 3
44
548.4
550.5
552.5
554. 6
556. 7
558.8 560.9
563.0
565.1
567.2
45
569.3
571.4
573.5
575.7
577.8
579.9
582.0
584.2
586.3
588.4
46
590.6
592.7
594.8
597.0
599. 1
601. 3
603.5
605. 6
607.8
609.9
47
612. 1
614.3
616. 5
618. 6
620.8
623. 0
625. 2
627.4
629.6
631.8
48
634.0
636. 2
638.4
640.6
642.8
645.0
647. 2
649.5
651.7
653.9
49
656. 1
658. 4
660.6
662.8
665. 1
667.3
669.6
671.8
674. 1
676. 3
50
678.6
680.9
683. 1
685. 4
687.7
690.0
692.2
694.5
696.8
699. 1
51
701.4
703. 7
706. 0
708. 3
710. 6
710.6
712. 9
712.9
715. 2
717.5
719.8
722. 1
52
724.4
726. 8
729. 1
731. 4
733.8
736. 1
738.4
740.8
743.1
745. 5
53
747.8
750. 2
752.5
754.9
757.2
759. 6
762.0
764. 3
766.7
769. 1
54
771.5
773.9
776.2
778.6
781.0
783. 4
785.8
788.2
790.6
793.0
55
795.4
797.8
800.3
802.7
805. 1
807.5
809.9
812.4
814.8
817.2
56
819.7
822. 1
824.6
827.0
829.5
831.9
834. 4
836.8
839. 3
841.8
57
844. 2
846.7
849.2
851. 6
854. 1
856. 6
859.1
861.6
864. 1
866.6
58
869.1
871.6
874. 1
876.6
879. 1
881.6
884. 1
886.6
889.1
891.6
59
894.2
896. 7
899.2
901.8
904. 3
906. 8
909.4
911.9
914.5
917.0
60
919. 6
922. 1
924.7
927.2
929.8
932. 4
934.9
937.5
940. 1
942.7
61
945.3
947.8
950.4
953. 0
955. 6
958. 2
960.8
963. 4
966.0
968. 6
62
971.2
973. 8
973.8 976. 5
979. 1
981.7
984.3
986.9
989.6
992. 2
994. 8
63
997. 51,000
1,003 1,005
1,008
1. 011
1,013
1,016 1,019
64 1,024
1, 021
1,027 1,029 1,032
1, 035
1,037
1,040
1,043
1,045 1,048
65 1,051
1,054
1,056
1,059
1,062
1,064
1,067
1,070
1,072
1,072
66 1,078
1,075
1,081
1, 083
1,086
1,089
1,092
1,094
1,097
1,097
1,100
1,100
1,102
67 1, 105
1, 108
1, 111
1. 114
1, 116
1, 119
1, 122
1, 125
1,127
1, 130
68 1,133
1, 136 1, 138
1, 141
1, 144
1, 147
1, 150
1,152
1,152
69 1, 161
1,155 1,158
1, 164
1, 166
1, 169
1, 172
1,175
1,178
1, 180
1, 1831, 186
70 1, 189
1, 192
1, 195
1, 197
1, 200
1, 203
1, 206
1,209
71 1, 217
72 1,246
1,212 1, 215
1, 220
1,223
1.226
1, 229
1,232
1,235
1,237
1,240
1, 243
1, 249
1. 252
1,255
1,258
1, 261
1, 263
1,266
73 1, 275
1, 269
1,272
1,278
1, 281
1,284
1, 287
1,290
1, 293
1,296
74 1,304
75 1,334
1,298
1, 301
1,307 1, 310
1, 313
1, 316
1,319
1,322
1,325
1,328
1, 331
1, 337
1, 340
1, 343
1,346
76 1, 364 1,367
1,349
1,352
1, 355
1, 358 1, 361
1,370
11, 373
1, 376
1, 379
1,382
771,
77 1, 3941, 397
1, 385
1, 388
1, 391
1, 400
1, 403
1, 406
1, 409
1,412
78 1, 424
1, 415
1, 418
1, 427
1, 421
1, 430
1, 433
1.436
1, 439
79 1, 454
1, 442
1,445
1. 448
1,451
1, 458
1, 461
1, 464
1, 467
1, 470
1,473
1,476
1, 479
1,482
HYDRAULIC TABLES
285
Table 17.—Five-thirds powers of numbers—Continued

Number .0
.1
.2
.3
.4
.5
.6
.7
.8
.9
81
82
83
84
85
86
87
2**** ***88 ===** *8888
80 1,485 1,488
1, 492
1, 495
1,498
1,501
1,504
1, 507
1, 510
1, 513
1,516
1,520
1,523
1, 526
1,529
1,532
1,535
1, 538
1, 541
1, 545
1, 548
1, 551
1,554
1,557
1, 560
1, 563
1, 567
1, 570
1,573
1,576
1,579
1,582
1, 586
1,586
1, 589
1, 589
1, 592
1,595
1,598
1, 602
1, 602
1,605
1, 605
1,608
1,611 1,614
1,618
1,621
1, 624
1,627
1,630
1,634
1,637
1, 640
1,643
1, 646
1,650
1,653
1, 656
1,659
1,663
663
1,666
1,669
1,672
1,676
1,679
1,682
1,685
1,689
1,692
1, 695
1, 698
1, 698
1, 702
1,702
1,705
1, 708
1, 711
1,715
1,718
1,721
1,725
1,728
1,731
1,
1, 734
1,738
1,741
1,744
1,748
1,751
1.754
1, 758
1, 761
1,764
1,767
1, 771
89 1,774
1,777
1,781
1, 784
1, 784
1, 787
1,787
1,791
1,794
1,797
1,801
1,804
90 1,807 1,811
1,811
1,814
1,818 1,821
1,824
1,828
1, 831
1,834
1,838
91
1,841
1,844 1,848
1,851 1,855
1,858
1,861
1,865
1,868
1,872
92
1,875
1,878 1,882
1,885 1,889
1,892
1,892
1,895
1, 895
1,899
1,899
1, 902
1, 902|
1,906
93 1,909 1,912 1, 916
1,919 1,923
1,926
1,930
1,933
1,936
1,940
94 1,943 1,947
1,950
1,954
1,957
1,961
1, 964
1,968
1, 971
1,974
95
1,978
1,981
1,985
1,988
1, 992
1,995
1,999
2, 002
2,006
2,009
96 2,013 2,016
2,016
2,020
2,020 2,023
2,027
2,030
2,034
2,037
2, 041
2, 044
97
2,048
2,051
2,055
2,058
2,062
2,065
2,069
2,072
2,076
2,080
98
2, 083
2,087
2,090
2,094
2,097
2, 101
2, 104
2,108
2,112
2, 115
99
2, 119
2, 122
2, 126
2, 129
2, 133
2, 137
2,140
2,144
2,147
2, 151
286
HYDRAULIC TABLES
Table 18.-Four-thirds powers of numbers

Number
.00
.01
.02
.03 30
.04
.05
.06
.07
.08
.09
0.0 0.0000 0.0022 0.0054 0.0093 0.0137 0.0184 0.0235 0.0288 0.0345 0.0403
0.1
.0464
0527
.0592
0.2
. 1170
. 1248
. 1328
.0659
. 1409
.0727 .0797
.0869
.0942
0.3
.2008
.2098
. 2189
.2280
. 1491 .1575
.2373 2467
.1659 . 1745
.2561 .2656
.1016
. 1832
.1092
. 1920
•
. 2752
.2849
0.4
2947
.3046
.3145
3246 3347
•
•
.3448
.3551
3654
.3758
.3863
0.5
.3969
.4075 .4182
.4289 .4397
.4506
.4616
.4726 .4837 .4948
0.6
.5061
.5173
0.7
•
.5287 .5401 .5515
.6215 6334 .6453 .6573 .6693
0.8 .7427 .7551 .7675 .7800 .7926
.5631 .5746
.6814
.5863 .5980
.6097
.6936 .7058 7180
.7303
.8052
.8178
,8305
.8433
.8561
0.9
.8689
.8818
.8948 .9078 .9208
.9339
.9470
.9602 .9734
.9867
1.0
1.000
1.013
1.027
1.040 | 1.054
1.067
1.081
1.094
1.108
1. 122
1.1
1. 136
1. 149
1. 163
1. 177
1. 191
1.205
1.219
1. 233
1. 247
1. 261
1,2
1. 275
1. 289
1.304
1. 318
1.332
1.347
1. 361
1. 375
1. 390
1.404
1.3
1. 419
1. 433
1. 448
1. 463
1. 477
1.492
1.507
1. 522
1. 536
1. 551
1.4
1.566
1.581
1. 596
1.611
1. 626
1. 641
1. 656
1. 671
1. 687
1.702
1.5 1.717
1. 732
1.748
1.763
1.778 1.794
1.809
1.825
1.840
1.856
1.6 1.871
1.887
1.903
1.918
1.934
1.950
1.966
1.981
1.997
2.013
1.7
2.029 | 2.045
2.061
2.077
2.093
2. 109
2. 125
2. 141
2. 157
2. 173
1.8
2. 190
2. 206
2. 222
2. 238
2.255
2. 271
2.287
2. 304
2.320
2. 337
1.9
2.353
2. 370
2. 386
2.403
2. 420
2.436
2.453
2.470
2. 486
2.503
2.0
2. 520
2. 537
2. 553
2.570
2.587
2.604
2. 621
2. 638
2. 655
2.672
2.1
2.689
2.706
2.723
2. 741
2.758
2. 775
2.792
2. 809
2. 827
2. 844
2.2
2.861
2.879
2.896
2. 913
2.931
2.948
2.966
2.983
3.001
3.018
2.3
3.036
3. 054
3. 071
3.089
3. 107
3. 124
3. 142
3. 160
3. 178
3. 195
2.4
3. 213
3. 231
3.249
3. 267
3. 285
3.303
3. 321
3. 339
3. 357
3. 375
2.5
3.393
3. 411
3.429
3. 447
3.466
3. 484
3.502
3. 520
3. 539
3.557
2.6
3. 575
3.594
3. 612
3.630
3.649
3.667
3.686
3.704
3.723
3.741
2.7
3.760
3.778
3.797
3.815
3.834
3.853
3.871
3.890
3.909
3.928
2.8
3.946
3.965
3.984 4.003
4.022
4.041
4.060
4.079
4.098
4. 117
2.9
4. 136
4. 155
4. 174 | 4. 193
4. 212
4. 231
4.250
4. 269
4. 288
4.308
3.0
4. 327
4. 346
4.365
4. 385
4. 404
4. 423
4. 443
4.462
4. 481
4. 501
3.1
4. 520
4.540
4.559
4. 579
4.598
4. 618
4. 637
4. 657
4. 676
4. 696
3.2
4.716
4.735
4.755
4.775
4.794
4. 814
4.834
4.854
4.873
4. 893
3.3
4.913
4.933
4.953
4.973
4.993
5. 013
5.033
5.053
5. 073
5. 093
3.4
5. 113
5. 133
5. 153
5. 173
5. 193
5. 213
5. 233
5. 253
5. 274
5. 294
3.5
5. 314
5. 334
5. 355
5. 375
5.395
5. 415
5.436
5.456
5. 477
5. 497
3.6
5. 517
5.538
5.558
5. 579
5.599
5. 620
5. 640
5.661
5.682
5.702
3.7
5.723
5.743
5. 764
5.785
5.805
5.826
5.847
5.868
5.888
5.909
3.8
5.930
5. 951
5.972
5.992
6.013
6. 034
6.055
6. 076
6.097
6. 118
3.9
6. 139
6. 160
6. 181
6. 202
6. 223
6. 244
6. 265
6. 286
6.307 | 6.328
4.0
6.350
6. 371
6. 392
6. 413
6. 434
6.456
6. 477
6. 498
6. 519
6.541
4.1 6.562
6. 583
6.605
6. 626
6.648
6. 669
6.690
6.712
6.733
6. 755
4.2
6.776
6.798
6. 819
6.841
6.863
6.884
6.906
6.927
6.949
6.971
4.3
6.992
7.014
7.036
7.057
7.079
7. 101
7. 123
7. 145
7. 166
7. 188
4. 4
7. 210
7. 232
7. 254 7. 276
7.298
7.319
7.341
7.363
7.385
7.407
4.5
7.429
7.451 7.473
7.495
7.518
7.540 7.562
7.584 7.606 7.628
4.6
7.650
7.672 | 7.695
7.717 7.739
7.761 | 7.784
7.806
7.828
7.850
4.7 7.873
7.895 7.918
7.940
7.962
7.985 8.007
8.030
8.052
8.074
4.8
8.097
8. 119 8. 142
8. 164
8. 187
8.210
8. 232
8. 255
8. 277
8.300
4.9❘ 8.323
8. 527
8.345
8.504
8.368
8.459 | 8. 482
8. 391
8.436
8. 413
HYDRAULIC TABLES
287
Table 18.-Four-thirds powers of numbers-
Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
5.0 8.550 8.573
8.596
8.618
8.641 8.664
8.687
8.710 8.733
8.756
5.1 8.779 8.802
8.825
8.848
8.871
8.894
8.917
8.940
8.963
8.986
5.2 9.009 9.032
9.055
9.078
9.101
9. 125
9. 148
9.171
9. 194
9.217
5.3 9.241 9.264
9.287
9.310
9.334
9.357
9.380
9.404
9.427
9.450
5.4 9.474
9.497
9.521
9.544
9.568
9.591
9.614
9.638 9.661
9.685
5.5 9.708
9.732
9.756
9.779
9.803
9.826 9.850 9.874
9.897
9.921
5.6
9.945
9.968
9.992
10.02
10.04
10.06 10.09 10.11 10.13
10.16
5.7
10. 18
10. 21
10. 23
10.25
10. 28
10.30
10.33
10.35
10.37
10.40
5.8
10.42
10.44
10.47
10.49
10.52
10.54 10.56 10.59
10.61
10.64
5.9
10.66 10.69 10.71
10.73
10.76
10.78
10.81
10.83
10.85
10.88
6.0
10.90 10.93 10.95 10.98
11.00
11.02
11.05
11.07
11.10
11.12
6. 1
11.15
11.17 11.19
11.22
11. 24
11. 27
11. 29
11.32
11.34
11.37
6.2
11.39
11.41 11.44
11.46
11.49
11.51
11. 54
11.56
11.59
11.61
6.3
11.64 11.66 11.68
11.71
11.73
11.76
11.78
11.81
11.83
11.86
6.4
11.88
11.91
11.93
11.96
11.98
12.01
12.03
12.06
12.08
12. 11
6.5
12. 13
12.16
12. 18
12. 21
12.23
12. 26
12.28
12.31
12.33
12.36
6.6
12.38
12. 41
12.43
12. 46
12.48
12. 51
12.53
12.56 12.58
12.61
6.7
12.63
12.66
12.68
12.71
12. 73
12.76
12.78 12.81
12.83
12.86
6.8
12.88
12.91
12.93
12.96
12.98
13.01
13.03 13.06
13.09
13.11
6.9
13. 14
13. 16
13. 19
13. 21
13. 24
13.26
13.29
13.31
13.34
13.37
7.0
13.39
13.42
13. 44
13. 47
13.49
13.52
13.54.
13.57
13.59
13.62
7.1 13.65 13.67
13.70
13.72
13.75
13.77
13.80 13.83
13.85
13.88
7.2
13.90
13.93
13.95
13.98
14.01
14.03
14.06
14.08 14.11
14. 14
7.3
14. 16
14. 19
14. 21
14. 24
14. 26
14. 29
14.32 14.34
14.37
14.39
7.4
14.42
14.45
14.47
14.50
14.52
14.55
14.58
14.60 14.63
14.65
7.5 14.68
14.71
14.73 14.76
14.79
14.81
14.84
14.86
14.89
14.92
7.6
14.94
14.97
14.99
15.02
15.05
15.07
15. 10
15. 13
15. 15
15. 18
7.7
15. 21
15. 23
15. 26
15. 28
15. 31
15.34
15. 36
15.39
15.42
15.44
7.8
15.47
15.50
15.52
15.55
15.57
15.60
15. 63
15.65
15.68
15.71
7.9
15.73
15.76
15.79 15.81 15.84
15.87
15.89
15.92
15.95
15.97
8.0
16.00
16.03
16.05
16.08 16. 11
16. 13
16. 16
16. 19
16. 21
16. 24
8. 1
16. 27
16. 29
16.32
16.35 16.37
16. 40
16.43
16.45
16.48
16. 51
8.2
16.54
16.56
16.59
16.62 16.64
16.67
16.70
16.72
16.75
16.78
8.3
16.80
16.83
16.86
16.89
16.91
16.94
16. 97
16.99
17.02
17.05
8.4
17.08
17.10
17. 13
17. 16
17. 18
17. 21
17.24
17.27
17.29
17.32
8.5 17.35 17.37
17.40
17.43 17.46
17.48
17.51
17.54 17.57
17.59
8.6 17.62 17.65 17.67 17.70
17.73 | 17.76
17.78
17.81 17.84
17.87
8.7
17.89
17.92
17.95
17.98
18.00 18.03
18.06
18.09
18. 11
18. 14
8.8
18. 17
18. 20
18. 22
18.25
18. 28
18.31
18.33
18.36
18. 39
18.42
8.9
18.44
18.47
18.50
18.53
18. 55
18.58
18.61
18.64
18.67
18.69
9.0
18.72 18.75 18.78
18.80
18.83
18.86
18.89
18.92
18. 94
18.97
9.3
9.4
9.1 19.00 19.03 19.05
9.2 19.28 19.31 19.33 19.36 19.39
19.56 19.59 19.61 19.64
19.84 19.87 19.89 19.92
19.08 19. 11
19. 14
19. 17
19.19
19. 22
19.25
19.42
19.45
19.47
19.50
19.53
19.67 19.70
19.73
19.75 19.78
19.81
19.95 19.98
20.01
20.04 20.06
20.09
9.5
20.12 20.15
9.6 20.40 20.43
9.7 20.69 20.72
20. 18
20.20 20.23 20.26
20.29
20.32 20.35
20.37
20.46
20.49 20.52
20.54
20.57
20.60 20.63 20.66
20.74
20.77 20.80
20.83
20.86
9.8 20.97 21.00 21.03
21.06 21.09 21.11
21. 14
20.89
21. 17
20.91
20.94
21.20 21.23
9.9
21.49 21.52
21.26 21.29 21.31 21.34 21.37 21.40
21.46
21.43
288
HYDRAULIC TABLES
Table 18.-Four-thirds powers of numbers-Continued


Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
10.0
21. 54
21.57 21.60 21.63 21.66
21.69 21.72 21.75 21.77
21.80
10. 1
21.83
21.86
21.89
21.92 21.95
21.98
22.01
22.03 22.06
22.09
10.2
22.12
22.15
22. 18
22.21 22.24
22.27
22.29
22.32
22.35
22.38
10.3
22. 41
22.44
22. 47
22.50 22.53
22.56
22.58
22.61 22.64
22.67
10.4
22.70
22.73
22.76
22.79 22.82
22.85
22.88
22.90
22.93
22.96
10. 5
22.99
23.02 | 23.05
23.08 23.11
23. 14
23. 17
23.20
23.23
23.26
10.6
23.28
23. 31
23.34
23.37 23.40
23.43
23.46
23.49
23. 52
23.55
10.7
23.58
23. 61
23.64
23.67
23.70
23.73
23.75
23.78
23.81
23.84
10.8 23.87
23.90
23.93
23.96
23.99
24.02
24.05
24.08
24. 11
24. 14
10.9❘ 24. 17
24.20
24. 23
24. 26
24. 29
24.32
24.35
24.37
24.40
24. 43
11.0
24. 46
24.49
24. 52
24.55
24.58
24. 61
24. 64
24.67
24.70
24.73
11. 1
24. 76
24.79
24.83
24.86
24.88
24.91
24.94
24.97
25.00
25.03
11.2
25.06
25.09
25. 12
25. 15
25. 18
25. 21
25. 24
25. 27
25.30
25.33
11.3
25.36
25.39
25. 42
25.45
25.48
25. 51
25.54
25. 57
25.60
25.63
11.4
25.66
25. 69
25.72
25.75
25.78
25.81
25.84
25.87
25.90
25.93
11. 5
25.96
25.99
26.02
26.05
26.08
26.11
26. 14
26. 17
26.20
26. 23
11. 6
26. 26
26.29
26.32
26.35
26.38
26.41
26. 44
26.47
26.50
26.53
11.7
26. 56
26.59
26. 62
26. 65
26.68 26.71
26.74
26.77
26.80
26.83
11.8
26.86
26.89
26.93
26.96
26.99
27.02
27.05
27.08 27.11
27.14
11.9 27.17
27.20
27.23
27.26
27.29
27.32
27.35
27.38
27.41
27.44
12.0
27.47
27.50 27.53
27.56
27.60
27.63 27.66
27.69
27.72
27.75
12. 1
27.78
27.81
27.84
27.87
27.90
27.93
27.96
27.99
28.02
28.05
12.2
28.09
28.12
28. 15
28. 18
28. 21
28. 24
28.27
28.30
28.33
28.36
12. 3
28.39
28. 42
28.45
28.49
28. 52
28.52
28.55
28.58
28. 61
28. 64
28.67
12.4
28.70
28.73
28.76
28.79
28.82
28.86
28.89
28.92
28.95
28.98
12.5
29.01 29.04
29.07
12. 6
12.8 29.94
29.32 29.35 29.38 29.41
12.7 29.63 29.66 29.69 29.72
29.97
30.00 30.04
12.9
30.25
30.25
30. 29
30.32 30.35
30.38
29.10 29.13 29.16 29.20
29.44 29.48 29.51
29.75 29.79 29.82
30.07 30.10
30.41
29.23
29. 26
29.29
29.54
29.57
29.60
29.85 29.88
29.91
30.13 30.16 30.19
30.22
30.44 30.47 30.50
30.54
13.0
30.57
30.60 30.63 30.66
13. 1
13.2
30.88 30.91 30.94 30.98
31.20 31.23 31.26 31.29
13.3 31.51 31.54 31.57 31.61
13.4 31.83 31.86 31.89
30.69
31.01 31.04
30.72
30.76
30.79 30.82
30.85
31.07
31.10 31.13
31.16
31.32
31.35
31.39 31.42 31.45
31.48
31.64
31.67
31.70
31.73 31.76
31.80
31.92
31.95
31.99
32. 02
32.05
32.08
32.11
13.5
32. 14
32. 18
32. 21
32. 24
32. 27
32.30
32. 34
32.37
32.40
32. 43
13.6
32.46
32.49
32.53
32.56
32.59
32.62
32.65
32.69
32.72
32.75
13.7
32.78
32.81
32.85
32.88 32.91
32.94
32.97
33.00 33.04
33.07
13.8
33. 10
33.13
33. 16
13.9
33.42 33.45
33.49
33.20 33.23 33.26
33.52 33.55 33.58
33.29 33.32 33.36
33.39
33.61
33.65 33.68
33.71
14.0
33.74 33.77
33.81
33.84
33.87
33.90
33.93
33.97 34.00
34.03
14.1
34.06 34.10
34. 13
34. 16
34.19
34. 22
34.26
34.29
34.32
34.35
14. 2
34.39 34. 42
34.45
34.48
34.52
34.55
34.58
34. 61
34.64
34.68
14.3 34.71
34.74
34.77
34.81
34.84
34.87
34.90
34.94
34.97
35.00
14.4 35.03
35.07 35.10 35. 13
35. 16
35.20
35. 23
35.26
35.29
35.33
14.5
14.6
35.36 35.39 35.42 35.46
35.68 35.72 35.75 35.78
35.49
35.52 35.55
35.59
35.62
35.65
35.81
35.85
35.88
35.91
35.94
35.98
14. 7
36.01 36.04
36.08 36. 11
36. 14
36.17
36.21
36. 24
36.27
36.30
14.8
36.34 36.37 36.40 36.44
36.47
36.50
36.53
36. 57
36. 60
36.63
14.9 36.66 36.70
36.96
36.73 36.76
36.93
36.80 36.83
36.89
36.86
36.89
HYDRAULIC TABLES
289
Table 18.-Four-thirds powers of numbers-Continued

Number .00
01
02
· 03
04
•
.05
.06
.07
.08
· 09
15.0 36.99 37.03 37.06
15. 1 37.32 37.36
37.09 37.12
37.16 37.19 37.22
37.26
37.29
37.39
37.42
37.45
37.49
37.52
37.55
37.59 37.62
15.2 37.65 37.69
37.72
37.75
37.78
37.82
37.85
37.88
37.92
37.95
15.3 37.98 38.02
38. 05
38.08
38. 12
38.15
38. 18
38. 21
38.25
38.28
15.4 38.31 38.35
38.38
38.41
38.45
38.48
38.51
38.55
38.58 38.61
15.5
38.65
38.68
38.71
38.75
38.78
38.81
38.85
38.88
38.91
38.95
15.6 38.98 39.01
39.05
39.08
39.11
39. 15
39. 18
39. 21
39.25 39.28
15.7 39.31 39.35
39.38
39.41
39.45
39.48
39.51
39.55
39.58
39.61
15.8 39.65 39.68 39.71
39.75
39.78
39.81
39.85
39.88
39.91 39.95
15.9
39.98
40.02 40.05
40.08
40. 12
40.15
40. 18
40.22 40.25
40.28
16.0 40.32
40.35 40.38
40.42
40.45
40.49
40.52
40.55
16.1 40.65 40.69 40.72
40.59
40.62
40.75
40.79
40.82
40.86
40.89 40.92
40.96
16.2 40.99 41.02 41.06
41.09
41.13
41. 16
41.19
41.23 41.26 41.29
16.3 41.33
41.36 41.40
41.43
41.46
41.50
41.53
41.57
41.60
41.63
16.4 41.67 41.70 41.73
41.77
41.80
41.84
41.87
41.90
41.94
41.97
16.5
42.01 42.04
42.07
42.11
42.14
42. 18
42. 21
42.24 42.28
42.31
16, 6
42.35
42.38 42.41 42.45
42.48
42.52
42.55
42.58
42.62 42.65
16.7
43.37
42.69 42.72 42.75
16.8 43.03 43.06 43.10
16.9
42.79
42.82
42.86
42.89
42.93
42.96
42.99
43.13
43. 16
43.20
43.23
43. 27
43.30
43.34
43.40 43.44
43.47
43.51
43.54
43.57
43.61
43.64
43.68
17.0 43.71 43.75
43.78
43.81
43.85
43.88
43.92
43.95
43.99 44.02
17.1 44.05 44.09
44. 12
44.16
44. 19
44.23
44. 26
44.30
44.33 44.36
17.2 44.40 44.43
44.47
44.50
44.54
44.57
44. 61
44.64 44.67 44.71
17.3
44.74 44.78
44.81
44.85
44.88
44.92
44.95
44.98
45.02 45.05
17.4
45.09 45. 12
45. 16
45. 19
45.23
45. 26
45.30
45.33
45.37
45.40
17.5 45.43 45.47
45.50
45. 54
45.57
45.61
45.64 45.68
45.71
45.75
17.6
45.78
45.82
45.85
45.88
45.92
45.95
45.99 46.02
46.06
46.09
17.7
46. 13
46. 16
46.20
46.23
46. 27
46.30
46.34
46.37
46. 41
46.44
17.8
46.48
46.51 46.55
46. 58
46.62
46.65
46.68 46.72
46.75
46.79
17.9
46.82 46.86 46.89
46.93
46.96 47.00 47.03
47.07
47.10
47. 14
18.0
47.17 47.21 47.24
47.28
47.31 47.35
47.38
47.42
47.45
47.49
18. 1
47.52
18.2
47.87
47.91
18.3
48.22
48.26
48. 29
18.4 48.58 48.61
48.65
47.56 47.59 47.63 47.66 47.70
47.94 47.98 48.01 48.05
48.33 48.37 48.40 48.44
48.68 48.72 48.75
47.73 47.77
47.80
47.84
48.08
48.12
48. 15
48.19
48.47
48. 51
48.54
48.79
48.82
48.86
48.89
18.5 48.93 48.96 49.00
49.03
49.07 49.10 49.14
49. 18
49. 21
49.25
18.6 49.28 49.32 49.35
49.39
18.7 49.64 49.67 49.71
18.8 49.99 50.02 50.06
18.9
50.34 50.38 50.42
49.74
50. 10
50.45
49.42 49.46 49.49
49.78 49.81 49.85
50.13 50.17 50.20
50.49 50.52
49.53
49.56
49.60
49.88 49.92
49.95
50.24
50.56 50.59 50.63
50.27
50.31
50.66
19.0
50.70 50.74 50.77
50.81
50.84 50.88 50.91 50.95 50.98
51.02
19. 1
19.2
51.45 51.48 51.52
19.3 51.77 51.81 51.84 51.88
19.4 52.13 52.16 52.20 52.24
51.06 51.09 51.13 51.16
51.41
51.20
51.56
51.23
51.59 51.63 51.66 51.70
51.27 51.31 51.34
51.38
51.73
51.91
52. 27
51.95 51.98
52.31 52.34
52.02 52.06
52.09
52.38 52.41
52.45
19.5
19.6
19.7
19.8
52.49 52.52 52.56 52.59
52.85 52.88 52.92 | 52.95 52.99
53. 21 53.24 53.28 53.31 53.35
53.57 53.60
52.63
52.67 | 52.70
52.74
52.77
52.81
53.03 | 53.06
53.10 53.13
53.17
53.39 53.42
53.46
53.49
53.53
53.64 53.67 53.71
53.75
53.78
53.82
53.85
53.89
19.9 53.93 53.96
54. 25
54.00 54.04 54.07
54.22
54.11
54. 18
54. 14
290
HYDRAULIC TABLES
Table 18.-Four-thirds powers of numbers-Continued


Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
20.0 54.29 54.32 54.36
54.40
54. 43
54.47
54.51
54.54 54.58
54.61
20.1
54.65
54.69
54.72
54. 76
54.80
54.83
54.87
54.90
54.94
54.98
20.2
55. 01
55.05
55.09
55. 12
55. 16
55.20
55.23
55. 27
55.30
55.34
20.3
55.38
55. 41
55.45
55.49
55.52
55. 56
55.60
55.63
55. 67
55.70
20.4
55. 74
55.78
55.81
55.85
55.89
55.92
55.96 | 56.00
56.03
56.07
20, 5
56. 11
56. 14
56.18
56. 21
56.25
56. 29
56.32
56.36
56.40
56.43
20.6
56.47
56.51
56.54
56.58
56. 62
56. 65
56.69
56.73
56.76
56.80
20.7
56.84 56.87
56.91
56.95
56.98
57.02
57.06
57.09 57. 13
57.17
20.8
57.20 57.24
57.28
57.31
57.35
57.39
57.42
57.46 57.50
57.53
20.9
57.57
57.61 57.64
57.68
57.72
57.75
57.79
57.83 | 57.86
57.90
21.0
57.94 57.97 58.01
58.05
58.08
58.12
58.16
58.20 58.23
58.27
21. 1
58.31
58.34
58.38 58.42
58.45
58.49
58.53
58.56 58.60
58.64
21.2
58.67
58. 71
58.75
58.79
58.82
58.86
58.90
58.93 58.97
59.01
21, 3
59.04
59.08
59. 12
59. 15
59. 19
59. 23
59. 27
59.30
59.34
59.38
21.4
59.41
59.45
59.49
59.52
59.56
59.60
59.64
59.67
59.71
59.75
21.5
59.78
59.82
59.86
59.90
59.93
59.97
60. 01
60.04
60.08
60. 12
21.6
60. 15
60.19
60.23 | 60. 27
60.30
60.34
60.38
60.42
60.45
60.49
21.7
60.53
60.56
60.60
60. 64
60.68
60.71
60.75
60.79
60.82
60.86
21.8
60.90
60.94
60.97
61.01
61.05
61.09
61. 12
61. 16
61. 20
61.23
21.9
61. 27
61.31
61.35
61.38
61.42 | 61.46 | 61. 50 |
61.53
61. 57
61.61
22.0
61, 64
61.68
61.72
61. 76
61.79 61.83
61.87
61.91
61.94
61.98
22.1
62.02
62.06
62.09
62. 13
62. 17 | 62. 21
62.24 62.28 62.32
62.36
22.2
62.39 62.43
62.47
62.51
62.54 62.58
22.3
62.77
62.81
62.84
62.88
62.92 | 62.96
62.62
62.99 63.03
62.66
62.69
62.73
63.07
63. 11
22.4
63. 14
63. 18
63. 22
63. 26
63. 29
63.33
63.37 63.41
63.44
63.48
22.5 63.52
63.56 63.60
63.63
63.67
63.71
63.75 | 63.78
63.82
63.86
22.6
63.90
63.93
63.97
64. 01
64. 05
64.09
64. 12
64. 16
64. 20
64. 24
22.7
64. 27
64.31
64.35
64.39
64.42
64. 46
64.50
64.54
64. 58
64.61
22.8
64. 65
64.69
64. 73
64.77
64.80
64.84
64.88
64.92
64.95
64.99
22.9
65.03
65.07 | 65. 11
65. 14
65. 18
65. 22
65. 26
65.30
65.33
65.37
23.0
65. 41
65.45
65. 48
65. 52
65.56
65.60
65. 64
65.67
65.71
65.75
23.1
65.79
65.83
65.86
65.90
65.94
65.98
66.02
66.05
66.09
66. 13
23.2
66. 17
66. 21
66.24
66. 28
66.32
66.36
66.40
66.43
66.47
66.51
23.3
66.55
66.59
66.63
66.66
66.70
66.74
66.78
66.82
66. 85
66.89
23.4 66.93 66.97
67.01
67.04
67.08
67. 12
67. 16
67.20
67. 24
67.27
23.5 67.31 67.35
67.39 67.43
67.46
67.50
67.54
67.58
67.62
67.66
23.6 | 67.69
67.73
67.77 | 67.81
67.85
67.89
67.92
67.96 68.00
68.04
23.7 68.08
68.11
68. 15
68. 19
68.23
68.27
68.31 68.34
68.38
68.42
23.8
68.46 68.50
68.54
68.57 68.61
68.65
68.69
68.73
68.77
68.81
23.9
68.84 68.88
68.92
68.96 | 69.00
69.04
69.07
69. 11
69.15
69.19
24.0 69.23
69.27 69.30 69.34 69.38
69.42
69.46
69.50 69.54
69.57
24. 1
69.61
69.65 69.69 69.73
69.77
69.81
69.84
69.88 69.92
69.96
24.2
70.00
70.04 70.08 70. 11
70.15
70. 19
70.23 70.27 70.31
70.35
24.3
70.38 70.42 70.46
70.50
70.54
70.58
70.62
70.65 70.69
70.73
24.4 70.77
70.81 70.85
70.89 70.93
70.96
71.00
71.04 71.08
71. 12
24.5 71.16 71. 20
24.6 71.55 71.58
24.7 71.93 71.97
71. 24
71. 27
71.31
71.35
71.39
71.43
71.47
71.51
71.62 71.66
71.70
71.74
71.78
71.82 71.86
71.89
24.8
72.32 72.36
72.01❘ 72.05
72.40 72.44 72.48
72.09
72. 13
72.17
72.21 72.24
72.28
72.52
72.56
72.59 72.63
72.67
24.9
73.06
72.71 72.75 72.79
72.98 73.02
72.83 72.87
72.94
72.91
HYDRAULIC TABLES
291
Table 18.-Four-thirds powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
25.0 73.10 73.14
73. 18
73.22
73. 26
73.30
73.33 73.37
73.41
73.45
25.1 73.49 73.53
73.57
73.61
73.65
73.69
73.72
73.76
73.80
73.84
25.2 73.88 73.92
73.96
74.00
74. 04
74.08
74. 12
74. 15
74. 19
74. 23
25.3 74.27 74.31
74.35
74.39
74.43
74.47
74. 51
74.55
74.59
74.62
25.4
74.66 74.70
74.74
74.78
74.82
74.86
74.90
74.94
74.98
75.02
25.5
75.06 75. 10
75. 13
75. 17
75. 21
75.25
75.29
75.33 75.37
75.41
25.6 75.45
75.49
75.53
75.57
75.61
75.65
75.68
75.72
75.76
75.80
25.7
75.84
75.88
75.92
75.96
76.00 76.04 76.08
76. 12
76. 16
76. 20
25.8
76. 24
76. 28
76. 31
76.35
76.39
76.43 76.47
76.51
76.55
76. 59
25.9
76.63
76.67
76.71
76.75
76.79
76.83
76.87
76.91 76.95
76.99
26.0
77.02
77.06
77.10
77. 14
77.18
77.22
77.26
77.30 | 77. 34
77.38
26. 1
77.42
77.46
77.50
77.54
77.58
77.62
77.66
77.70
77.74
77.78
26. 2
77.82
77.86 77.90
77.93
77.97
78.01 78.05
78.09
78. 13
78. 17
26.3 78.21
26.4
78.25 78.29
78.33
78.37
78.41
78.45 78.49
78.53
78.57
78.61
78.65
78.69 78.73
78.77
78.81
78.85
78.89
78.93
78.97
26.5
79.01
26.6 79.40 79.44 79.48
79.05 79.09
79.13
79. 17
79.21
79. 24
79.28
79.32
79.36
79.52
79.56
79.60
79.64
79.68 79.72
79.76
26.7 79.80 79.84 79.88
79.92
79.96
80.00
80.04 80.08 80.12
80.16
26.8 80.20
80.24 80.28 80.32
80.36
80.40 80.44 80.48
80.52
80.56
26.9
80.60
80.64
80.68
80.72
80.76
80.80
80.84 80.88 80.92
80.96
27.0
81.00
81.04
81.08
81. 12
81. 16
81.20
81.24 81.28 81.32
81.36
27, 1
81.40
81.44 81.48
81.52
81.56
81.60
81.64 81.68 81.72
81.76
27.2
81.80
81.84
27.3
82.20
27.4 82.60
81.88 81.92 81.96 82.00
82. 24 82.28 82.32 82.36 82.40
82.64 82.68 82.72 82.76
82.04 82.08 82.12
82.16
82.44 82.48
82.52
82.56
82.80
82.85 82.89
82.93
82.97
27.5 83.01 83.05 83.09
27.6 83.41 83.45 83.49
83. 13
83.17
83.21
83.25 83.29
83.33
83.37
83.53
27.7
83.81
83.85
27.8
84. 22
84. 26
83.89 83.93
84.30
27.9
84.62
84.66
84.70
83.57
83.97 84.01
84.34 84.38 84.42
84.74 84.78 | 84.82
83.61 83.65 83.69
83.73
83.77
84.05 84.09
84. 13
84. 18
84.46 84.50
84.54
84.58
84.86
84.90
84.94
84.98
28.0
85.02
85.06
85. 11
28.185.43
85. 47
85.15 85.19 85.23
85.51 85.55 85.59 85.63 85.67
85.27
85.31
85. 35
85.39
85.71
85.75
85.79
28.2 85.84
85.88
85.92 85.96 86.00
86.04
86.08
86. 12
86.16
86.20
28.3 86. 24
86.28
28.4
86.65
86.69
86.32 86.36 86.40
86.73 86.77
86.44
86.49
86.53
86.57
86.61
86.81 86.85
86.89
86.93 86.97
87.01
28.5 87.05 87.10 87.14 87.18
28.6 87.46 87.50 87.54 87.58
28.7 87.87 87.91 87.95 87.99
28.8 88.28 88.32 88.36 88.40
28.9 88.69 88.73 88.77 88.81
87.22 87.26 87.30
87.63 87.67 87.71
88.03 88.07 88.12
88.44 88.48 88.52
88.85 88.89 88.93 88.97
87.34 87.38
87.42
87.75
87.79
87.83
88. 16
88.20
88.24
88.57
88.61
88.65
89.02
89.06
29.0
89.10
29. 1
89. 51
29.2
89.92
29.3
90.33
29.4
90.74
90.86
90.90
89. 14 89.18 89.22 89.26 89.30 89.34 89.38
89.55 89.59 | 89.63 | 89.67 89.71 89.75 89.79
89.96 90.00 90.04 90.08 90.12 90.16 90.20 90.25
90.37 90.41 90.45 90.49
90.57
90.78 90.82
89.43
89.47
89.84 89.88
90.29
90.53
90.62 90.66
90.70
90.95
90.99 91.03
91.07
91. 11
29.5
91. 15
91. 19
91.23
91.27
91. 32
91.36
91.40
91.44
91. 48
91.52
29.6
91.56
91.60
91.65 91.69
91.73
91.77
91. 81
91. 85
91.89
91.93
29.7❘ 91.98 92.02 92.06 92.10
92. 14
92. 18
92. 22
92.27
92.31
92.35
29.8 92.39 92.43 92.47 92.51
92.55
92.60
92.64
92.68
92.72
92.76
29.9 92.80 92.84 92.89 92.93
93. 18
92.97 93.01
93, 13
93.05
93.09
292
HYDRAULIC TABLES
Table 18.-Four-thirds powers of numbers-Continued

Number .0
.1
.2
.3
.4
.5
.6
.7
.8
.9
30
93.22
93.63 94.05 94.46 94.88 95.29
95.71
96. 13
96.55
96.96
31
32
33
34
36
37
38
39
40
42
43
45
46
47
48
**** ***** **** ***** SANA. 28588 SECEJ 68582 R82*
97.38
97.80
98.22
98.64 99.06 99.48
99.90 100.3
100.7
101.2
101.6
102. 0
102. 4
102.9
103.3 103.7
104. 1
104.6
105.0
105.4
105.8
106.3
106.7
107.1
107.6
108.0
108.4
108.9
109.3
109.7
110. 1
110.6
111.0
111. 4
111.9
112.3
112.7
113.2
113.6
114. 1
35 114.5
114.9
115.4
115.8
116. 2
116.7
117.1 117.6
118.0
118. 4
118.9 119.3
119.8
120.2
120.6
121.1
121.5
122.0 122.4
122.8
123.3 123.7
124.2
124.6
125. 1
125.5
126.0
126.4
126.9
127.3
127.8 128.2
128.7
129. 1
129. 6
130.0
130.5
130.9
131.4
131.8
132.3
132.7
133.2
133.6
134. 1
134.5
135.0
135. 4
135.9
136. 3
136.8
137.3
137.7
138.2
138.6
139.1
139.5
140.0
140.5
140.9
41 141.4
141.8
142 3
142.8
143. 2
143.7
144. 1
144.6
145. 1
145.5
146.0
146.5
146.9
147.4
147.8
148.3
148.8
149.2
149.7
150.2
150.6
151. 1
151.6
152.0
152.5 153.0
153.5 153.9
154. 4
154.9
44 155. 3
155.8
156.3
156.7 157.2
157.7
158.2
158.6
159.1
159.6
160.1
160.5
161.0
161.5
162.0
162.4
162.9
163. 4
163.9
164.3
164.8
165.3
165.8
166. 3
166.7
167.2 167.7
168.2
168.6
169. 1
169.6
170. 1
170.6
171.1
171.5
172.0 172.5
173.0
173.5
174.0
174.4
174.9
175.4
175.9 176.4
176.9
177.4 177.8
178.3
178.8
49 179.3
179.8
180.3
180.8 181.3
181.7
182.2
182.7
183.2
183. 7
50 184.2 184.7
185.2
185.7
186.2
186.7
187.2
187. 6
188. 1
188.6
51
189.1 189.6
190. 1
190.6
191.1
191.6
192.1
192.6
193. 1
193.6
52
194.1 194.6
195.1
195.6
196. 1
196.6
197. 1
197.6
198. 1
198.6
53
199.1 199.6
200.1
200.6
201. 1
201.6
202.1
202.6
203. 1
203.6
54
204.1 204.6 205. 1
205.6
206. 1
206.6
207.1 207.6
208.1
208.7
55
209.2 209.7
210.2
210.7
211. 2
211.7
212. 2 | 212. 7
213.2
213. 7
56
214.2 214.8 215.3
215.8
216.3
216.8
217.3
217.8
218.3
218.9
57 219.4 219.9 220.4 220. 9
221. 4
221.9
222.4
223.0
223. 5
224.0
224.5 225.0 225.5 | 226.1|
226.6
227. 1
227.6
228. 1
228. 6.
229. 2
59
229.7 230.2
230.7
231.2
231.8
232. 3
232.8
233. 3
233.8
234. 4
60
234.9 235.4
235.9
236. 5
237.0
237.5
238.0
238.6
239.1
239.6
61
240. 1
240.7
241. 2
241.7
242.2
242.8
243.3
243.8
244. 3
244.9
62
245. 4
245.9
246.4
247.0
247.5
248.0
248. 6
249. 1
249.6
250. 2
63
250.7
251.2
251.7 252.3
252.8
253.3
253.9
254.4
254.9
255. 5
64
256.0
256.5
257.1| 257.6
258. 1
258. 7
259.2
259.7
260.3
260.8
261.3 261.9 262.4 263.0
263.5
264.0 264.6
265. 1
265. 6
266. 2
66 266.7 267.3 267.8 268.3
67
272.1
277.6
272.7
273.2 273.7
278. 1
278.6
279.2
69 283.0
283.6
284. 1
284.6
285.2
285.7
268.9 269.4 270.0
274.3 274.8 275.4
279.7 280.3 280.8 281.4 281.9 282.5
286.3 286.8 287.4 287.9
270.5
271.0
271.6
275.9 276.5
277.0
71
70 288.5
294.0
289.0
289.6
290. 1
290.7
291.2
291.8 292.3
292.9
293. 4
294.6
295. 1
295.7
296.2
296.8
297.3 297.9
298.4
299.0
72 299.5
300. 1
300. 6
301. 2
301.8
302.3
302.9
303. 4
304.0
304. 5
73
305. 1
305.6
306. 2
306.8
307.3
307.9
308.4
309.0
309.6
310. 1
74
310. 7
311.2
311.8
312.4
312.9
313. 5
314.0
314.6
315. 2
315.7
75 316.3 316.8
317.4
318.0
318.5
319.1
319.7
320.2
320.8
321.4
76
321.9❘ 322.5
323. 1
323.6
324. 2
324. 7
325. 3
325.9
326. 4
327.0
77
327.6 328. 2
328.7
329.3
329.9
330.4
331.0
331.6
332. 1
332.7
78
333.3
333.8
334.4
335.0
335.5
336. 1
336.7
337.3
337.8
338. 4
79 339.0
344. 1
339.5
343.6
340. 1
343. 0
340.7
342.4
341.3
341.8
HYDRAULIC TABLES
293
Table 18.-Four-thirds powers of numbers—Continued

Number
.0
.1
22
.3
.4
.5
.6
.7
.8
.9
80
82
83
84
***** 88588 8**** ****:
344.7
345.3
345.9
346.4
347.0
347. 6
348.2
348.7
349.3
349.9
81 350.5
351. 0
351.6
352.2
352.8
353.4
353.9
354.5
355. 1
355.7
356.2
356.8
357.4
358.0
358. 6
359. 1
359.7
360.3
360.9
361.5
362, 1
362. 6
363. 2
363.8
364. 4
365.0
365.5
366. 1
366. 7
367.3
367.9
368.5
369.0
369.6
370.2
370.8
371.4
372.0
372.6
373. 1
373.7
374.3
374.9 375.5
376. 1
376. 7
377.3
377.8
378. 4
379.0
86 379.6
380.2
380.8
381.4
382. 0
382.5
383. 1
383.7
384.3 | 384. 9
87
385. 5
386.1
386.7
387.3
387.9
388.5
389. 1
389.6
390.2
390.8
391.4
392.0
392.6
393.2
393. 8
394.4
395.0
395.6
396. 2
396.8
89
397.4
398.0
398.6 399.1
399. 7
400.3
400.9
401.5
402. 1
402.7
90 403.3 403.9
404.5 | 405.1
405. 7
406.3
406.9
407.5
408. 1
408.7
91
409.3 409.9
410.5
411.1
411.7
412.3
412.9
413. 5
414. 1
414. 7
92 415.3
415.9
416. 5
417.1
417.7
418.3
418.9
419.5
420. 1
420.7
93 | 421.4
422.0
422.6
423.2 | 423.8
424. 4
425.0
425.6
426. 2
426.8
94
427.4
428.0
428.6
429.2 | 429.8 | 430.4
430.4
431.0
431. 7
432. 3
432.9
95
433. 5
434. 1
434.7
435.3 435.9
436.5
437. 1
437.7
438.3
439.0
96
439.6
440.2
440.8
441.4
442.0
442.6
443. 2
443.8
444. 5
445. 1
97
445.7
446.3
446. 9
447.5
448. 1
448.8
449.4
450.0
450.6
451. 2
98 451.8
452. 4
453. 1
453.7
454.3
454.9
455. 5
456. 1
456. 7
457.4
99
458.0
458.6
459.2
459.8
460. 4
461. 1
461.7
462.3
462.9
463. 5
294
HYDRAULIC TABLES
Table 19.-Two-thirds powers of numbers

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
0.0
0.000
0.046
0.074 | 0.097
0.117
0.136
0.153
0.170
0.186
0.201
0.1
. 215
.229
.243 .256
.269
.282
.295
.307
.319
.331
0.2
.342
.353
.364 .375
.386
.397 .407
.418 .428
.438
0.3
.448
.458
.468
.477
.487
.497
.506 .515
.525
.534
0.4
.543
.552
.561
.570
.578
.587
.596
.604
.613
.622
0.5
0.8
0.7
0.8
0.9
LA CO 2 0 →
.630
.638
647
.655
.663
.671
.679
.687
.695
.703
.711 .719
.727
.735
.743
.750 .758
.765
.773
.781
.788 .796
.803
.811 .818
.825 .832
.840
.847
.855
•
862 .869
.876
.883 .890
.897
.904
.911
.918
.925
.932 .939
.946
.953
.960
.966
.973
.980
.987
.993
1.0
1.000 1.007
1.013
1.020
1.027
1.033
1.040
1.046
1.053
1.059
1.1
1.065
1.072
1.078
1.085
1.091
1.097
1. 104
1.110
1. 117
1. 123
1.2
1. 129
1. 136
1. 142
1. 148
1. 154
1.160
1. 167
1. 173
1. 179
1. 185
1,3
1. 191
1. 197
1.203
1.209
1.215
1.221
1. 227
1.233
1.239
1. 245
1.4
1.251
1.257
1.263 | 1.269
1.275
1.281
1.287
1.293
1.299
1.305
1.5
1. 310
1.316 1.322 1.328
1.334
1.339
1. 345
1.351
1.357
1.362
1.6
1.368
1.374 1.379 1.385
1.391
1.396
1.402
1.408
1. 413
1.419
1.7
1.424 1.430 1.436
1.441
1. 447
1.452
1.458
1.463
1.469
1. 474
1.8
1.480 1.485 1.491 1.496
1.502
1.507
1. 513
1. 518
1.523
1.529
1.9
1.534
1.539
1.545 1.550
1.556
1. 561
1.566
1.571
1.577
1.582
2.0
1.587
1.593
1.598
1.603
1.608
1.613
1. 619
1.624
1. 629
1. 634
2.1 1.639
1. 645
1. 650
1.655 1.660
1.665
1. 671
1.676
1.681
1.686
2.2 1.691
1.697
1.702
1.707 1.712
1.717
1.722
1.727
1.732
1.737
2.3 1.742
1.747 1.752 1.757
1.762 1.767
1.772
1.777 1.782
1.787
2.4 1.792 1.797 1.802 1.807
1.812 1.817
1.822
1.827 1. 832
1.837
2.5
2.6
2.7
2.8
2.9
LA SI FI Ɑo -
1.842 1.847 1.852 1.857
1.891 1.896 1.900 1.905
1.862 1.867
1.871
1.876 1.881
1.886
1.910
1.915
1.920
1.925 1.929
1.934
1.939 1.944 1.949 1.953
1.987 1.992 1.996 2.001
2.034 2.038 2.043 2.048
1.958
1.963
1.968
1.972 1.977
1.982
2.006 2.010 2.015 2.020 2.024
2.052 2.057 | 2.062 | 2.066 | 2.071
2.029
2.075
3.0
2.080 | 2.085
2.089
2.094
2.099 2.103
2.108
2.112
2. 117
2.122
3.1
2. 126
2. 131
2. 135
2.140
2.144
2.149
2.153
2. 158
2.163
2.167
3.2
2. 172
2.176
2.180
2. 185
2.190
2. 194
2.199
2.203
2.208
2.212
3.3
2.217
2.221
2. 226
2. 230
2.234
2.239
2.243
2.248
2.252
2.257
3.4
2.261
2.265
2.270
2.274
2.279
2. 283
2. 288
2.292 | 2.296
2.301
eð eð
eð
er eð
LO CO 2 ∞ ∞
3.5 2.305 2.310 2.314
3.6 2.349
3.7
2.353
2.358
2.392 2.397 2. 401
3.8 2.435
2.478
3.9
4.0
2.318
2.323 | 2.327
2. 331
2.336
2.340
2.345
2.362
2.362 | 2.366
2. 371
2.375
2. 379
2.384
2.388
2.405 2.409
2.414
2. 418
2.422
2. 427
2.431
2.439
2.444
2.448 2.452 2.457
2.461
2.465
2.469
2.474
2.482 2.486 2.490 | 2.495 | 2.499
2.503
2.507
2.511
2.516
2.520 2.524 2.528 | 2.532 2.537 2.541
| |
4. 1 2.562 2.566 2.570 2.574 2.579 2.583
4.2 2.603 2.607 2.611
2. 545
2.549 2.553
2.558
4.3 2.644
4.4 2.685
2.587 2.591 | 2.595
2.616 | 2.620 | 2.624 | 2.628 | 2.632 | 2.636
2.648 2.653 2.657 2.661 2.665 2.669 | 2.673 2.677
2.689 2.693 | 2.698 2.702 2.706
2.599
2.640
2.681
2.710 2.714
2.718
2,722
4. 5
2.726
4. 6 2.766
2.730 | 2.734 | 2.738
2.770
2.774 | 2.778
2.742 2.746
2.782 2.786 2.790
2.750
2.754
2.758
2.762
2. 794
2.798
2.802
4.7
2.814 | 2.818
4.8
2.806 2.810
2.822 | 2.826 | 2.830 | 2.834
2.846 2.850 2.854 | 2.858 | 2.862 | 2.865 2.869 2.873
2.838
2.842
2. 877
2.881
4.9
2.920
2.885
2.916
2.889 | 2.893 | 2,897 2.901 2.904 2.908
2.912
2.912
HYDRAULIC TABLES
295
Table 19.-Two-thirds powers of numbers—Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
7.08.
.09
5.0
2.924
2.928 2.932 2.936 2.940 2.944
2.947
2.951 2. 955
2.959
5.1
2. 963
2.967
5.2
3.001
3.005
2.971
3.009
2.975
2.979
2.982
2.986
2.990 2.994
2.998
3.013
3. 017
3. 021 3.024
3.028
3.032
3.036
5.3 3.040 3.044 3.047 3.051
3.055
3.059 | 3.063
3.067
3.070
3.074
5.4 3.078
3.082 | 3.086 | 3.089 |
3.093 |
3.097
3. 101
3.105
3.108
3. 112
5.5 3.116
3. 120
3.123
3. 127
3. 131
3. 135 | 3.138
3. 142
3. 146
3.150
5.6
3.154
3.157
3. 161
3. 165
3.169
3. 172
3. 176
3.180 |
3. 184
3. 187
5.7
3. 191
3. 195 | 3. 198
3.202
3.206
3. 210
3.213
3. 217
3. 221
3. 224
5.8
3.228
3. 232
3.236 | 3.239
3.243
3. 247
3.250
3.254
3. 258
3. 261
5.9 3.265
3.269
3.273 | 3.276
3.280
3.284 | 3.287 | 3.291
3.295
3.298
6.0
3.302
3.306
3.309 | 3.313
3.317
3. 320 3.324
3.328
3. 331
3.335
6.1 3.339
3.342
3.346 3.350
3.353
3.357 3.360
3.364 | 3.368
3.371
6.2
3.375
3.379
3.382
3.386
3.389
3.393 | 3.397
3.400 3.404
3.408
6.3
3. 411
3. 415
3.418
3.422
3.426
3.429 3.433
3.436
3.440
3. 444
6.4
3. 447
3. 451
3.454
3.458
3.461
3. 465
3.469
3.472
3.476
3.479
6.5
3.483
3.486
3.490 3.494
3.497
3.501
3.504
3.508
3. 511
3. 515
6.6
3. 519
3.522
3.526
3.529 3.533
3.536
3. 540
3. 543
3. 547
3.550
6.7
3. 554
3.558
3. 561
3.565 3.568
3. 572
3.575
3. 575
3. 579
3.582
3.586
6.8
3.589
3. 593
3.596
3.600
3.603
3.607
3.610
3. 614
3.617
3. 621
6,9
3.624
3.628 | 3.631
3.635
3.638
3. 642 3.645
|
3.649
3.652
3.656
7.0 3.659
3.663 3.666
3.670 3.673
3.677 3.680
3.684
3.687
3.691
7.1 3.694
3.698 3.701
3.705 | 3.708
3.712
3.715 3.718
3.722
3.725
7.2 3.729
7.3 3.763
3. 732
3.767 3.770
3.736
3.739 3.742
3.746
3.749
3.753
3.756
3.760
3.773 3.777
3.780
3.784
3.787
3. 791
3.794
7.4 3.797 3.801 3.804 3.808
3.811
3.814
3.818
3.821
3.825
3.828
7.5 3.832 3.835 3.838
3.842
3.845
3.849
3.852
3.855
3.859
3.862
7.6 3.866 3.869 3.872
3.876
3.879
3.879
3.883 3.886
3.889 3.893
3.896
7.7 3.899 3.903 3.906 3.910
7.8 3.933 3.937 3.940 3.943
7.9 3.967 3.970 3.973 3.977
3.913
3.916 | 3.920
3.923 3.926
3.930
3.947
3.947 3.950 | 3.953
3.957 3.960
3.963
3.980 | 3.983 | 3.987
3.990 | 3.993
3.997
από από από από από
8.0
4.000 4.003
4.007
4. 010
4. 013
4. 017 | 4.020
4.023 4. 027
4.030
8.1
4.033
4.037
4.040
4.043
4.047
4. 050 4.053
4.057 4.060
4.063
8.2
4.066
4. 070
4.073
4.076
4.080
4. 083
4.086
4.090 | 4.093
4.096
8.3
4.099
4.103
4. 106 4. 109
4. 113
4. 116
4. 119
4. 122
4. 126
4. 129
8.4
4. 132
4. 136
4. 139
4. 142
4. 145
4. 149
4.152
4.155
4.159
4. 162
8.5
4.165
4.168
4. 172
4. 175
4. 178
4. 181
4. 185
4. 188
4. 191
4. 194
8.6
4. 198
4. 201
4.204
4. 207
4. 211
4. 214
4. 217
4. 220
4. 224
4. 227
8.7
4.230
4. 233
4. 237
4. 240
4. 243
4. 246
4. 249
4. 253
4. 256
4. 259
8.8 4.262 | 4. 266
4. 269
4. 272
4.275 4.279
4. 282
4.285 4.288
4. 291
8.9 4.295
4.298
4.301
4.304
4.307 | 4.311
4. 314
4.317 | 4.320
4. 324
9.0
4. 327
4.330
4.333 4.336
4.340
4.343
4.346
4.349 4. 352
4.356
9.1
4.359
4. 362
4.365 4.368 4.372 4.375
4.378
4.381
4.384
4.387
9.2
4. 391
4.394
4.397 4.400 4.403
4.407
4. 410
4. 413
4.416
4.419
9.3
4. 422
4. 426 4.429 4.432
4.435
4. 438
4. 441
4.445
4.448
4. 451
9.4
4.454
4. 457 4.460 4.464
4.467
4. 470
4.473
4.476
4.479
4. 482
9.5
4.486
4.489 4. 492 4.495
4.498
4. 501
4.504
4. 508
4. 511
4. 514
9.6
4.517
9.7
4. 548
9.8
4.580
4.520 4. 523
4.551 4. 555
4.583 4.586
4.526
4.530
4.533
4.536
4.539
4. 542
4. 545
4.558 4.561
4. 564
4.567
4.570
4.573
4. 576
4.589 4.592
4.595
4.598 4.601
4. 604
4.608
9.9
4.639
4.611
4.635
4.614 4.617
4.632
4.620 4.623
4.629
4.626
296
HYDRAULIC TABLES
Table 19.-Two-thirds powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
10.0 4.642 4.645 4.648
4. 651
4.654
4.657
4.660 4.663 4.666
4.669
10.1
10.2 4.703 4.706
4.672 4.676
4.679
4.682
4.685
4.688
4.691
4.694
4.697
4.700
4.709
4. 712
4.716
4. 719
4.722
4.725
4.728
4. 731
10.3 4.734 4.737
4.740
4.743
4.746
4.749
4.752
4.755
4. 758
4.762
10.4 4,765 4.768
4.771
4.774 4.777
4.780
4.783 4.786
4.789
4.792
10.5
4.795
4.798
4.801
4.804 4.807
4.810
4.813 4.816 4.819
4.822
10.6
4.825 4.828
4. 832
4.835
4.838
4.841
4.844
4.847
4.850
4.853
10.7 4.856 4.859
4.862
4.865
4.868
4. 871
4. 874
4.877
4.880
4.883
10.8 4.886 4.889 4.892
4.895 4.898
4.901
4.904
4.907
4.910
4.913
10.9 4.916 4.919
4.922
4.925
4.928
4.931
4.934 4.937
4. 940
4.943
11.0 4.946 4.949 4.952
11.1 4.976 4.979 4.982
4.955 4.958
4.961
4.964
4.967
4.970
4.973
4.985
4.988
4.991
4.994
4.997
5.000
5.003
11.2
5.006 5.009
5.012
5. 015
5.018
5. 021
5. 024
5.027
5. 030
5.033
11.3
5.036
5.039 5.042
5. 044
5. 047
5.050
5.053
5.056
5.059
5.062
11.4
5.065
5.068
5.071
5.074
5.077
5.080
5.083
5.086
5.089
5.092
11.5
5.095
5.098
5. 101
5. 104
5. 107
5. 110
5. 113
5. 115
5. 118
5. 121
11.6
5. 124
5. 127
5. 130
5. 133
5. 136
5. 139
5. 142
5. 145
5. 148
5. 151
11.7
5. 154
5. 157
5. 160
5. 163
5. 166
5. 168
5. 171
5. 174
5. 177
5. 180
11,8
5. 183
5. 186
5. 189
5. 192
5. 195
5. 198
5. 201
5. 204
5.207
5. 209
11. 9
5. 212
5.215
5. 218
5. 221
5. 224
5. 227
5. 230
5. 233
5.236
5. 238
12.0
5. 241
5. 244
5. 247
5. 250
5. 253
5.256
5. 259
5.262
5.265
5. 268
12. 1
5. 271
5. 273
5. 276
5. 279
5. 282
5. 285
5. 288
5. 291
5.294
5. 297
12.2
5.300
5.302
5. 305
5.308
5. 311
5.314
5.317
5.320
5.323
5.326
12.3 5.329 5.331
5. 334
5.337
5.340
5.343
5.346
5. 349
5. 352
12.4 5.357 5.360
5.363
5.366
5. 369
5.372
5.375
5.377
5.380
5. 354
5.383
12.5 5.386
5.389
5.392
5.395
5.398 5.400
5.403
5. 406
5.409
5. 412
12.6 5.415 5. 418
5. 421
5. 423
5.426
5.429
5. 432
5. 435
5.438
5.440
12.7 5.443
5.446
5.449
5. 452
5.455
5.458
5.461
5.463
5.466
5.469
12.8 5.472 5.475
5.478
5.480
5.483
5.486
5.489 5.492
5.495
5.498
12.9 5.500 5.503
5.506
5.509
5.512
5. 515
5.517
5.520
5.523
5.526
13, 0
5.529
5. 532
5. 534
5.537
5. 540
5.543
5. 546
5. 549
5. 551
5.554
13. 1
5.557
5.560
5. 563
5.566
5.568
5.571
5.574
5. 574
5.577
5.580
5. 582
13.2
5. 585
5.588
5. 591
5.594
5.597
5.600
5.602
5.605
5.608
5.611
13. 3
5.614
5.616
5. €19
5.622
5.625
5.628
5.630 5.633 5.636
5.639
13.4
5.642
5.644
5.644
5.647
5.650
5.653 5.656
5.658 5.661 5.664
5.667
13.5 5.670
5.672 | 5.675
5.678
5.681
13.6 5.698 5.700 5.703 5.706
5.709
5.684 5.686
5.712
5.689 5.692
5.695
5.714
5.717
5.720
5.723
13.7
5.725 5.728
5.731 | 5.734
5. 737
5. 739
5.742
5.745
5.748
5. 751
13.8
5. 753 | 5.756
5.759 5.762
5. 765
13.9
5. 781 5.784 5.787
5.789
5.792
5.767 5.770
5.795 5.798 5.801
5.773 5.776
5.778
5.803
5.806
14.0
5.809
5.812 5.814
5.817
14. 1
5.836
5.839 5.842 5.845
14.2
5.864
5.867 5.870
14,3
5.892
5.8945.897
14.4
5.919
5.922 5.924
5.820 5.823 5.825 5.828 5.831
5.847 5.850 5.853 5.856 5.859
5.872 5.875 5.878 5.830 5.883 5.886 5.889
5.900 5.902 5.905 5.908 5.911 5.913
5.927 5.930 5.933 5.935 5.938 5.941
5.834
5.861
5.916
5.944
14.5 5.946
14.6
5.974
14. 7
6.001
6. 004
14.8 6.028
6.031
5.949 5.952 5.955 5.957 5.960
5.976 5.979 5.982 5.985 5.987
6.006 6.009 6.012 6.014
6.034 6.036 6.039 6.042
6.061
5.963 5.965 5.968 5.971
5.990 5.993 5.995 5.998
6.017 6.020 6.023
6.025
6.044
6.047
6.050
6.052
14.9 6.055
6.080
6.058
6.077
6.063 6.066
6.069
6.074
6. 071
HYDRAULIC TABLES
297
Table 19.-Two-thirds powers of numbers—Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
·.09%
15.0
6.082
6.085
6.088
6. 090
6.093
6. 096
6.098
6.101
6. 104
6.106
15. 1
6. 109
6. 112
6. 115
6. 117
6.120
6. 123
6.125
6. 128
6. 131
6. 133
15. 2
6. 136
6. 139
6. 141
6. 144
6. 147
6.150
6. 152
6. 155
6. 158
6. 160
15.3
6. 163
6. 166
6.168
6. 171
6. 174
6.176
6. 179
6.182
6.184
6. 187
15. 4
6.190
6.193
6. 195
6. 198
6. 200
6.203
6. 206
6.209
6. 211
6. 214
15.5
6.217
6.219
6.222
6.225
6. 227
6.230
6. 233
6. 235
6. 238
6. 241
15. 6
6. 243
6.246
6.249
6. 251
6. 254
6. 257
6.259
6. 262
6.265
6. 267
15.7
6. 270
6.273
6.275
6.278
6.281
6. 283
6.286
6. 289
6.291
6. 294
15.8
6.297
6. 299
6.302 6.305
6.307
6.310
6. 312
6.315
6.318
6.320
15.9
6.323
6.326
6.328
6.331
6.334
6.336
6.339
6.342 6.344 6.347
16. 0
6.350 6.352
6.355
6.358
6.360|
6.363
6.365 6.368 6.371 6.373
16.1
6.376 6.379
6. 381
6.384
6.387|
6.389 6.392
6.394
6.397 6.400
16.2
6.402
6.405
6.408
6.410
6. 413
6.416 6.418
6. 421
6.423 6.426
16.3
6.429
6. 431
6. 434
6.437
6.439
6. 442
6.444
6.447
6.450
6.452
16.4
6.455
6.458
6.460
6.463|
6. 465
6.468
6.471
6. 473
6.476
6.479
16. 5
6. 481
6. 484
6.486
6.489
6.492
6.494
6.497
6. 500
6.502
6.505
16.6
6.507
6.510
6.513
6. 515
6.518
6.520
6.523
6.526
6.528
6.531
16.7
6.533 6.536
6.539
6.541
6. 544
6.546
6. 549
6.552
6.554 6.557
16.8
6.560
6.562
6.565
6.567
6.570|
6. 573
6.575
6.578
6.580
6.583
16. 9
6.586
6.588
6. 591
6.593
6.596
6.599
6.601
6.604
6.606
6.609
17.0
6.611
6.614
6.617 6.619
6.622
6.624
6.627 6.630
6.632
6. 635
17.1 6.637 6. 640
6.643 6.645
6.648
6.650
6.653
6.655
6.658
6.661
17.2
6.663
6.666
6.668 6.671
6.674
6.676 6.679
6.681
6.684
6.686
17.3
6.689 6.692 6.694 6.697
6.699
6.702 6.705
6.707
6. 710
6.712
17.4
6.715 6.717
6.720
6.723
6.725
6.728
6.730
6.733
6.7356.738
17.5
6.740 6. 743
6.746 6.748
6.751
6.753
6.756 6.758 6.761 6.764
17.6
6.766
6.769
17.7 6.792
6.794
6.771
6.797 6.799
6.774
6. 776
6.779
4
6.782 6.784 6.787
6.789
6.802
6.805
6.807 6.810 6.812 6.815
17.8 6.817 6.820 6.822
6.825
6.828
6.830
6.833
17.9 6.843 6.845 6.848 6.850
6.853
6.856
6.858
6.835 6.838
6.861 6.863 6.866
6.840
18.0
6.868 6.871 6.873
6.876
6.878
6.881
6.884
18. 1
6.894 6.896 6.899 6.901
6.886 6.889 6.891
6.904 6.906 6.909 6.911 6.914 6.917
18.2
6.919 6.922 6.924
6.927
6.929
6.932
18.3 6.944 6.947 6.949
6.952
6. 954
6.957
18.4
6.970 6.972 6.975
6.977
6.980
6.982
6.934 6.937 6.939 6.942
6.960 6.962 6.965 6.967
6.985 6.987 6.990 6.992
18. 5
7.000
7.002]
18.6
18.7
7.103
6.995 6.997
7.020 7.023 7.025 7.028 7.030 7.032 7.035 7.038| 7.040
7.045 7.048 7.050 7.053 7.055 7.058 7.060
18.8 7.070 7.073 7.075 7.078 7.080 7.083 7.085
18.9 7.095 7.098 7.100
7.105 7.108 7.110
7.005
7.007
7.010 7.013
7.015
7.018
7.043
7.063 7.065
7.068
7.088 7.090|
7.113 7.115 7.118
7.093
19.0 7.120 7.123 7.125 7.128
7.130
7.133
19.1 7.145
7.148
7.150
7.153]
7.155
7.135 7.138 7.140
7.158 7.160
7.143
7.163
7. 165
7.168
19.2 7.170
7. 173
7. 175
7.178
7. 180
7.183
7.185
7.188
7. 190
7.193
19.3 7.195
7.198
7.200
7.203
7.205
7.208
7.210 7.212
7.215
7.217
19.4 7.220 7.222 7.225 7.227
7.230
7. 232
7.235
7.237
7.240
7.242
19.5 7.245 7.247 7.250
19.6 7.270 7.272 7.274
19.7 7.294 7.297 7.299
19.8
7.252
19.9
7.255 7.257 7.260 7.262 7.265
7.277 7.279 7.282 7.284 7.287 7.289
7.302 7.304 7.307 7.309 7.311
7.319 7.321 7.324 7.326 7.329 7.331 7.334 7.336
7.343 7.346 7.348 7.351 7.353 7.356 7.358 7.361
7.267
=
7.292
7.314
7.316
7.339
7.341
7.363
7.366
563189°-44-20
298
HYDRAULIC TABLES
Table 19.—Two-thirds powers
Two-thirds powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
20.0 7.368 7.371 7.373 7.375 7.378
20.1 7.393 7.395
7.400 7.402
20.2 7.417 7.420 7.422 7.424 7.427
20.3 7.442 7.444 7.446. 7.449 7.451
20.4 7.466 7.468 7.471 7.473 7.476
7.397
7.380 7.383 7.385 7.388
7.405
7.429 7.432 7.434
7.454|| 7.456|
7.478 7.481 7.483
7.390
7.407 7.410 7.412
7.415
7.437
7.439
7.459
7.461
7.464
7.485 7.488
20.5
7.490 7.493
20.6
7.515
7.495
7.517 7.520 7.522
7.498
7.500
7.503
7.505
7.507 7.510 7.512
7.524
7.527
7.529
7.532
7.534 7.537
20.7
7.539
7.541
7.544 7.546
7.549
7.551
7.554
7.556 7.558 7.561
20.8
7. 563
7.566
7.568 7.571
7.573
7.575
7.578
7.580 7.583
7.585
20.9
7.587
7.590
7.592
7.595
7.597
7.600
7.602
7.604 7.607 7.609
21.0
7.612
7.614 7.617
7.619
7.621
7.624
7.626
7.629 7.631
7.633
21. 1
7.636 7.638 7.641
7.643
7.645
7.648
7.650
7.653 7.655 7.658
21. 2
7.660 7.662
7.665
7.667 7.670
7.672
7.674|
7.677
7.679 7.682
21.3
7.684
7.686 7.689
7.691
7.694
7.696
7.698
7.701
7.703 7.706
21. 4
7.708
7.710 7.713
7.715
7.718| 7.720 7.722
7.725
7.727 7.730
21. 5
7.732 7.734 7.737
7.739
7.742
7.744
7.746
7.749
7.751 7.754
21.6
7.756
7.758 7.761
7.763
7.766| 7.768
7.770 7.773
7.775 7.778
21.7
7.780
21.8 7.804 7.806 7.809
7.782 7.785
7.787
7.789 7.792
7.794
7.797
7.799 7.801
7.811
7.813
7.816
7.818
7.820
7.823 7.825
21.9
7.828
7.830 7.832
7.835
7.837
7.840 7.842
7.844 7.847 7.849
22.0
7.851 7.854 7.856| 7.859
7.861
7.863
7.866
22.1 7.875 7.878 7.880
7.882|
7.885
7.887 7.889
22.2
7.899 7.901 7.904
7.906
7.908
7.911
7.868 7.870 7.873
7.892 7.894 7.897
7.913 7.916 7.918 7.920
22.3 7.923 7.925 7.927
7.930
7.932
7.934
7.937
22.4 7.946 7.949 7.951
7.953
7.956
7.958
7.960
7.939 7.942 7.944
7.963
7.965 7.968
22.7
22.8
22.9
8.064 8.066 8.069
8.071
22.5 7.970 7.972 7.975 7.977
7.986 7.989
22.6 7.994 7.996 7.998 8.001 8.003 8.005 8.008 8.010 8.012
8.017 8.019 8.022 8.024 8.027 8.029 8.031 8.034 8.036
8.041 8.043 8.045 8.048 8.050 8.052 8.055
8.076 8.078
7.979 7.982 7.984
7.991
8.015
8.038
8.074
8.083
8.057 8.059 8.062
8.081
8.085
23.0
8.088
8.090 8.092
8.095
8.097
8.099
8. 102
8. 104
8. 106
8. 109
23. 1
8. 111
8.113
8.116
8. 118
8.120
8. 123
8. 125
8. 127
8.130
8. 132
23.2
8. 134
8.137
8. 139
8. 141
8. 144
8. 146
8.148
8. 151
8. 153
8. 155
23.3
8.158
8.160
8.162
8. 165
8. 167
8. 169
8.172]
8. 174
8.176
8. 179
23.4
8. 181
8. 183
8. 186
8.188
8. 190
8. 193
8.195
8.197
8.200
8.202
23.5
8.204
8.207
8.209
8. 211
8. 214
8. 216
8.218]
8. 221
8. 223
8. 225
23.6
8.228
8.230
8. 232
8. 235
8. 237
8.239
8. 242
8. 244
8.246
8. 249
23.7
8. 251
8. 253
8.255
8. 258
8.260
8. 262
8. 265
8. 267
8. 269
8. 272
23.8
8. 274
8.276
8.279
8. 281
8. 283
8.286
8.288
8.290
8.293
8.295
23.9
8.297
8.300 8.302
8.304
8.306
8.309
8. 311
8. 313
8.316
8.318
24.0
8.320 8.323] 8.325
8.327
8.330
8.332 8.334 8.337 8.339
8.341
24. 1
24.2
24.4
8.343 8.346 8.348 8.350
8.366 8.369 8.371 8.374
24,3 8.390 8.392 8.394 8. 396
8.413 8.415 8.417 8.419
8.353
8.355 8.357 8.360 8.362
8.364
8.376 8.378 8.380 8.383 8.385
8.399 8.401 8.403 8.406 8.408 8.410
8.422 8.424 8.426 8.429 8.431 8.433
8.387
24.5
24. 6
24. 7
24.8
8.504
8.488
8.507 8.509 8. 511
8.436 8.438 8.440 8.442 8.445
8.458 8.461 8.463 8.465 8.468
8.481 8.484 8.486
8.447 8.449
8.470 8.472
8.490 8.493 8.495
8.513 8.516 8.518
8.452 8.454 8.456
8.474 8.477 8.479
8.497 8.500 8.502
8.520 8.522 8.525
24. 9
8.543 8.545 8.548
8. 527
8.536 8.538 8.541
8.529 8.532 8.534
HYDRAULIC TABLES
299
Table 19.-Two-thirds powers of numbers-Continued

Number .00. 01
02
.03. 04 | . 05.06.
07
08
09
25.1 8.573 8.575
25.2 8.595 8.598
25.3 8.618 8.620
25.48.641 8.643
25.0 8.550 8.552 8.554
8.577 8.580
8.580 8.582
8.600 8.602 8.605 8.607
8.623 8.625 8.627 8.629
8.645 8.648 8.650 8.652
8.557 8.559 8.561 | 8.564 | 8.566 | 8.568
8.584 8.586 8.589 8.591
8.570
8.593
8.609
8.632 8.634 8.636
8.611 8. 614
8.616
8.639
8.654 | 8.657 | 8.659
8.661
25.5 8.664 8.666 8.668 8.670
8.673
8.675
8.677 8.679 8.682
8.684
25.6 8.686 | 8.688 8.691
8.693
8.695
8.697
8.700 8.702 8.704
8.706
25.7 8.709 8.711 8.713
8.716
8.718
8.720
8.722 | 8.725 | 8.727
8.729
25.8 8.731 8.734 8.736
8.738
8.740
8.743
8.745 | 8.747 | 8.749
8.752
25.9❘8.754
8.754 8.756
8.758
8.761
8.763
8.765
8.767 8.770 8.772
8.774
26.3
8.844
8.846
26.0 8.776 8.779 8.781 8.783 8.785 8.788 8.790
26.1 8.799 8.801 8.803 8.806 8.808 8.810 8.812
26.2 8.821 8.824 8.826 8.828 8.830 8.833 8.835
8.848 8.850 8.853 8.855 8.857
8.792 8.794
8.797
8.8158.817
8.819
8.837 8.839
8.842
8.859 8.862
8.864
26.4 8.866
8.868
8.871 8.873
8.875
8.877
8.880 8.882
8.884
8.886
26.5
8.889
26.6 8.911
8.891
8.893 8.895
8.897
8.900
8.902
8.902 8.904
8.906
8.909
26.7 8.933
8.913 8.915 8.918
8.935 8.938
8.944
26.8 8.956 8.958 8.960 8.962
8.962 8.964 8.967
26.9 8.978 8.980 8.982 8.984 8.987 8.989
8.920
8.922
8.924 8.927 8.929
8.931
8.940 8.942
8.947
8.949 8.951
8.953
8.969
8.991 8.993 8.996
8.971 8.973
8.976
8.998
27.0 9.000
27.1 9.022
27.2 9.044
27.3 9.067
27.4 9.089
27.5 9. 111
9.098 9.100
9.002 9.004 9.007 9.009 9.011 9.013
9.024 9.027 9.029 9.031 9.033 9.036 9.038 9.040
9.047 9.049 9.051 9.053 9.055
9.069 9.071 9.073 9.075 9.078
9.091 9.093 9.095
9.016 9.018
9.020
9.042
9.058 9.060 9.062
9.064
9.080
9.082 9.084
9.086
9.102
9.104
9.106
9.109
9. 113
9.115
9.117
9.120
9.122
9.124
9. 126
9.128
9. 131
27.6
9. 133
9. 135
9. 137
9. 139
9. 142
9. 144
9. 146
9.148
9.150
9. 153
27.7 9. 155
9. 157
9.159
9. 162
9.164
9.166
9.168
9.170
9. 173
9. 175
27.8
9. 177
9. 179
9. 181
9.184
9.186 9.188
9.190
9.192
9.195
9. 197
27.9
9.199
9.201
9.203
9.206 9.208 9.210
9.212
9.214
9.216
9.219
28.0
9. 221
28. 1
9.223 9.225 9.227 9.230
9.243 9.245 9.247 9.249
28.2 9.265 9.267 9.269 9.271
9.232
9.234 9.236
9.238
9.241
9.252
9.254
9.256 9.258
9.260
9.263
9.274
9.276
9.278 9.280 9.282
9.284
28.3 9.287 9.289 9.291 9.293 9.295
28.4 9.308 9.311 9.313 9.315 9.317
9.298
9.300 9.302 9.304
9.306
9.319
9.322 9.324 9.326
9.328
28.5 9.330 9.333 9.335 9.337 9.339
28.6 9.352 9.354 9.356 9.359 9.361
28.7 9.374 9.376 9.378 9.380 9.383
28.8 9.396 9.398 9.400 9.402 9.404
28.9 9.417 9.420 9.422 9.424 9.426
29.0 9.439 9.441 9.443 9.446 9.448
29.1 9.461
9.461 9.463 9.465 9.467 9.469
9.343
9.341
9.363 9.365 9.367 9.370
9.385 9.387 9.389 9.391
9.407 9.409 9.411 9.413
9.428 9.430 9.433 9.435
9.346 9.348
9.350
9.372
9.393
9.415
9.437
9.450
9.452 9.454
9.456
9.459
9.472
9.474 9.476 9.478
9.480
29.2 9.482 9.485
29.3 9.504 9.506
29.4 9.526 9.528
9.487 9.489 9.491
9.508 9.511 9.513
9.530 9.532 9.534
9.493
9.495
9.498 9.500
9.502
9.515 9.517 9.519 9.521
9.537 9.539 9.541
9.524
9.543
9. 545
29.5 9.547 9.549
29.6 9.569 9.571
29.7 9.590 9.593
29.8 9.612 9.614
9.552 9.554 9.556
9.573 9.575 9.577
9.595 9.597 9.599
9.616 9.618
9.558 9.560 9.562
9.580 9.582
9.565
9.567
9.584 9.586
9.588
9.601 9.603
9.605 9.608
9.610
9.621
9.623
9.625
9.627 9.629
9.631
29.9 9.633 9.636
9.648 9.651 9.653
9.638 9.640
9. 646
9.642
9.644
300
HYDRAULIC TABLES
Table 19.—Two-thirds powers of numbers-Continued

Number .0
.1
.2
.3
.4
.5
.6
.7
.8
.9
30 9.655
9.676
9.698
9.719
9.741
9.762
9.783 9.805
9.826
9.847
31
9.868
9.889
9.911
9.932
9.953
9.974
9.995 10.02
10.04
10.06
32 10.08
10.10
10. 12
10. 14
10. 16
10. 18
10. 20
10.23 10.25
10. 27
33 10.29 10. 31
10.33
10. 35
10.37
10.39
10.41
10.43 10.45
10.47
34 10.50
10.52
10.54
10.56
10.58
10.60
10.62
10.64 10.66
10.68
35 10.70
10.72
10.74
10.76 110.78 10.80
10.82
10.84 10.86
10.88
36 10.90
10.92
10.94
10.96
10.98 11.00
11.02
11.04
11.06
11.08
37 11.10
11. 12
11.14
11. 16
11.18
11.20
11. 22
11. 24
11.26
11.28
38 11.30
11.32
11.34
11.36
11.38
11.40
11.42
11.44
11.46 11.48
39 11.50
11. 52
11.54
11.56
11.58 11.60
11.62
11.64
11.66 11.68
40 11.70
11.72
11.74
11.75
11.77
11.79
11.81
11.83 11.85
11.87
41 11.89
11.91
11.93
11.95
11.97
11.99
12.01
12.03
12.04
12.06
42 12.08
12. 10
12. 12
12. 14
12. 16
12. 18
12. 20
12.22
12.24
12. 25
43 12, 27
12. 29
12.31
12.33
12.35
12.37
12.39
12. 41
12. 43
12.44
44 12.46
12, 48
12.50
12.52
12. 54
12.56
12.58
12.60
12.61
12.63
45 12.65
12.67
12.69
12.71
12. 73
12.75
12.76
12.78
12.80
12.82
46 12.84 12.86
12.88 12.89
12.91
12.93
12.95
12.97
12.99
13.01
47 13.02
13.04
13.06
13.08
13. 10
13. 12
13. 13
13. 15
13. 17
13. 19
48 13. 21
13.23
13. 24
13.26
13.28
13.30
13. 32
13. 34
13.35
13.37
49 13.39
13. 41
13.43
13.45 13.46
13.48
13. 50
13. 52
13.54
13. 55
50 13.57 13.59
13.61
13.63 13.64
13.66
13.68
13.70
13.72
13.73
51 13.75 13.77
13.79
13.81
13.82
13. 84
13.86
13.88
13.90
13. 91
52 13.93
13.95
13.97
13.99
14.00
14.02
14.04
14.06
14. 07
14.09
53 14.11
14. 13
14. 15
14. 16
14. 18
14. 20
14. 22
14.23
14. 25
14. 27
54 14.29
14.30
14.32
14.34
14.36
14.37
14.39
14. 41
14. 43
14.44
55 14.46 14.48
14.50
14. 51
14. 53
14. 55
14.57
14.58
14.60
14.62
56 14.64 14.65
14.67
14.69
14. 71
14.72
14.74
14.76
14. 78
14.79
57 14.81 14.83
14.85
14.86
14.88
14.90
14.91
14.93
14.95
14. 97
58 14.98
15.00
15.02
15.04
15.05
15.07
15.09
15. 10
15.12
15. 14
59 15. 16
15. 17
15. 19
15. 21
15. 22
15. 24
15.26
15. 28
15. 29
15.31
60 15.33 15.34
15.36
15.38
15. 39
15.41
15.43
15.45
15. 46
15.48
61 15.50 15.51 15.53
15. 55
15.56
15.58
15.60
15. 61
15.63
15.65
62 15.66 15.68
15.70
15.72
15.73 15.75
15.77
15.78
15.80
15.82
63 15.83 15.85
15.87
15.88
15.90 15.92
15.93
15.95
15.97
15.98
64 16.00 16.02
16. 03
16. 05
16.07
16.08
16. 10
16. 12
16. 13
16. 15
65 16.17 16. 18
16. 20
16. 22
16.23
16. 25
16. 27
16. 28
16.30
16.32
66 16.33
16.35
16.36
16.38
16.40
16.41
16. 43
16.45
16.46
16.48
67 16.50 16. 51
16. 53
16.55
16.56
16.58
16.59
16.61
16.63
16.64
68 16.66
16.68
16.69 16.71
16.73
16. 74
16. 76
16.77
16. 79
16.81
69 16.82
16.84
16.86 16.87
16.89
16.90
16.92
16.94
16.95
16.97
70 16.98
17.00
17.02
17.03
17.05 17.07
17.08
17.10
17.11
17. 13
71 17.15
17. 16
17. 18
17.19 17.21 17.23
17.24
17. 26
17.27
17.29
72 17. 31
17.32
17.34 17.36 17.37 17.39
17.40
17.42
17.43
17.45
73 17.47
17.48
17.50 17.51 17.53
17.55
17.56
17.58
17.59 17.61
74 17.63 17.64
17.66 17.67
17.69
17.71
17.72
17.74
17.75
17.77
75 17.78 17.80
17.82 17.83
17.85
17.86
17.88 17.89 17.91 17.93
76 17.94
17.96
17.97
17.99
18.01
18.02
18.04
18.05 18.07
18.08
7718. 10
18. 11
18. 13
18. 15
18. 16
18. 18
18. 19
18. 21
18.22
18.24
78 18.26
18. 27
18. 29
18.30
18.32
18.33
18.35
18.36
18.38
18.40
79 18.41
18.55
18.43
18.50 18.52 18.54
18.44
18.46 18.47 18.49
HYDRAULIC TABLES
301
Table 19.-Two-thirds powers of numbers-Continued

Number .0
.1
.2
.3
.4
.5
.6
.7
.8
.9
***** ***88 2**** *85%8
80 18.57 18.58 18.60
18.61 18.63 18.64 18.66
18.67 18.69
18.71
81 18.72
18.74 18.75
18.77
18.78
18.80
18.81
18.83
18.84 18.86
82 18.87
18.89 18.91
18.92
18.94
18.95
18. 97
18.98
19.00
19.01
83 19.03
84 19.18
19.04
19.06
19.07
19.09
19.10
19. 12
19. 13
19.15
19.16
19. 20
19. 21
19.23
19. 24
19.26
19. 27
19.29
19.30
19.32
85 19.33
19. 35
19.36
19.38
19.39
19.41
19.42
19.44
19.45
19.47
86 19.48
87 19.63
19.50
19. 51
19.53
19. 54
19.56 19.57
19.59 19.60
19.62
19. 65
19.66
19.68
19.69
19.71
19.72 19.74 19.75
19.77
88 19.78
19.80
19.81
19.83
19.84
19.86
19.87
19.89 19.90
19.92
89 19.93
19.95
19.96 19.98
19.99
20.01
20.02
20.04
20.05
20.07
90 20.08
91 20. 23
20. 10
20.11
20.13
20.14
20. 16
20.17
20.19
20. 20
20.22
20. 25
20.26
20.28
20.29
20.31
20.32
20.34
20.35
20.36
92 20.38
20.39
20.41
20.42
20.44
20.45
20.47
20.48
20. 50
20.50
20.51
93 20.53 20.54
20.56 20.57
20.59
20.60
20.62
20.63
20.63
20.64
20.66
94 20.67
20.69
20.70 20.72
20.73
20.75
20.76
20.78 20.79
20.81
95 20.82 20.83
20.98
96 20.97
97 21.11
98 21.26
99 21.40
20.85 20.86
20.88
20.89
20.91
20.92 20.94
20.95
21.00
21.01
21.02
21.04
21.05
21.07
21.08
21.10
21. 13
21. 14
21. 15
21. 17
21. 18
21.20
21.21
21. 23
21. 24
21. 27
21.29
21.30
21.31
21.33
21. 34
21.36
21.37
21.39
21.41
21.43
21.44
21.46
21.47
21.49
21.50 21.52
21.53
302
HYDRAULIC TABLES
Table 20.-Three-fifths powers of numbers

Number
.00
.01
.02
.03
.04
.05
.06
07 .08 .0
0.1
0.2
.3807
.3920
.4031
.4140.4247 .4353
0.3
.4856 4952
•
0.4
5771 5857
.5048 .5142 5235 .5326
.5942.6027
•
.6110
0.5
•
6598.6676
.6755 .6832 .6909
0.6
.7360 .7434
.7506
0.7
.8073.8142
.8211
.7579
.8279
.7651
.8347
0.8
.8747 .8812
.8877 .8942
0.0 0.0000 0.0631 0.0956 0.1220 0. 1450 0. 1657 0.1849 0.2028 0.2197 0.2358
.2512 .2660] .2802 .2940 .3074.3204
•
.3330
.3454 .3574 .3692
.4456.4558 .4659 .4758
.5684
.6986 .7062 .7137
.7722.7793 .7864
.8415 8482.8549
.9135 .9198
•
.6438 .6518
.7212.7286
.8681
•
.6193
5417 .5507 .5596
.6276 .6357
0.9
.9387
.9450
.9512.9574
9007 .9071
.9636.9697
.9758
.9819
.7934 .8004
.8615
.9262 .9325
.9880.9940
1.0
1.1
1.2
1.3
1.4
0123 SE
1.000
1.006
1. 012
1.018
1.024
1.030
1.036
1. 041
1.047 1.053
1.059
1.065
1.070
1.076
1.082
1. 087
1.093
1.099
1. 104
1. 110
1.116
1. 121
1. 127
1. 132
1. 138
1. 143
1. 149
1. 154
1. 160
1. 165
1. 170
1. 176
1. 181
1. 187
1. 192
1. 197
1.203
1.208
1. 213
1. 218
1. 224
1. 229
1.234
1.239
1. 245
1.250
1.255
1.260
1. 265
1.270
1.5
1.275
1.281
1.286
1.291
1. 296
1.301
1.306
1.311
1.316
1.321
1.6
1.326
1. 331
1.336 1,341
1.346
1.350
1. 355
1.360
1.365
1.370
1.7 1.375
1.380
1.385 1.389
1.394
1.399
1. 404
1.409
1.413
1. 418
1.8
1.423 1.428 1.432 1.437
1.442
1.446
1.451
1.456
1.460
1. 465
1.9
1.470 1.474
1.479
1.484
1.488
1.493
1.497
1.502
1.507
1. 511
SİNİRİCİRİ
2.0
1. 516
1. 520
1. 525
1.529
1. 534
1. 538
1. 543
1. 547
1. 552
1.556
2.1
1. 561
1. 565
1.570
1. 574
1. 579
1. 583
1.587
1.592
1.596
1.601
2.2
1. 605
1.609
1. 614
1.618
1. 622
1.627
1.631
1.635
1. 640
1.644
2.3
1. 648
1. 653
1. 657
1.661
1. 665
1.670
1. 674
1.678
1. 682
1.687
2.4
1. 691
1. 695
1.699
1.704
1.708
1.712
1.716
1.720
1.725
1. 729
2.5
1. 733
1. 737
1.741 1.745 1.749
1.754
1.758
1.762 | 1.766
1.770
2.6
1. 774
1.778
1.782 1.786 1.790
1.795
1.799
1.803 1.807
1.811
2.7
1.815
1.819 1.823 1.827 1.831
1.835
1.839
1.843
1.847
1. 851
2.8
1.855 1.859
1.863 1.867 1.871
1.875
1.879
1.882
1.886
1.890
2.9
1.894 1.898 1.902 1.906
1.910
1.914
1.918
1.922
1. 925
1.929
að að eð er ei
3.0
1.933
1. 937
1.941
1.945
1.949
1.952
1.956
1.960
1.964
1.968
3.1
1.972
1.975
1.979
1.983
1.987
1.991
1.994
1.998 2.002
2.006
3.2
2. 010
2. 013
2.017
2.021
2. 025
2.028
2.032
2.036
2.040
2.043
3.3
2.047
2.051
2.054
2. 058
2.062 2.066
2.069
2.073
2. 077
2.080
3.4
2. 084
2.088
2.091
2.095
2. 099. 1. 2. 102
2. 106
2. 110
2. 113
2. 117
8.5
2. 121
2. 124
2. 128
2. 131
2. 135
2. 139
2. 142
2. 146
2. 149
2. 153
3.6
2. 157
2. 160
2. 164
2. 167
2. 171
2. 175
2. 178
2. 182
2.185
2. 189
3.7
2. 192
2. 196
2.200
2. 203
2.207
2,210
2. 214
2. 217
2. 221
2. 224
3.8
2. 228
2. 231
2. 235
2. 238
2. 242
2.245
2. 249
2. 252 | 2.256
2.259
3.9
2. 263
2. 266
2. 270
2.273
2.277
2. 280
2. 284
2.287 2.290
2. 294
4.0
2. 297
2. 301
2.304
2.308
2.311
2.315
2. 318
2.321
2. 325
2. 328
4. 1
2. 332
2.335
2.339
2. 342
2. 345
2.349
2.352
2.355
2.359
2.362
4.2
2.366
2.369
2.372
2.376
2. 379
2.383
2.386 2.389
2.393
2.396
4.3
2. 399
2. 403
2.406 2.409
2. 413
2.416
2.419 2.423
2. 426
2.429
4.4
2.433
2.436
2.439 2.443
2.446
2.449
2,452 | 2.456
2.459
2.462
4,5 2.466 2. 469
2.472 2. 475
2.479
2. 482
2.485
2. 489
2.492
2.495
4.6
2.498
2.502
2.505
2.508
2,511
2. 515
2. 518
2. 521
2. 524
2.528
4.7
2.531
2. 534
2.537
2. 540
2. 544
2. 547
2.550
2.553
2. 557
2.560
4.8
2. 563
2.566
2.569
2.573
2.576
2.579
2.582
2. 585
2. 589
2.592
4,9
2.623
2.595
2.620
2. 598 2. 601
2. 617
2. 604
2. 614
2.608
2. 611
HYDRAULIC TABLES
303
Table 20.—Three-fifths powers of numbers-Continued


Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
5.0
2.627
2. 630
2.633
2.636
2.639
2.642
2. 645
2. 649
2.652
2.655
5. 1
2.658
2. 661
2. 664
2. 667
2.670
2.674
2. 677
2.680
2.683
2.686
5.2
2.689
2.692
2.695
2.698
2.701
2.705
2. 708
2.711
2.714
2.717
5.3
2.720
2. 723
2.726
2.729
2. 732
2. 735
2.738
2.741
2.745
2. 748
5.4
2.751
2.754
2.757
2.760
2.763
2.766
2. 769
2.772
2.775
2.778
5.5
2.781
2. 784
2.787
2.790
2. 793
2.796
2.799
2.802
2.805
2.808
5.6 2.811
2. 814
2.817
2.820
2.823
2.826
2. 829
2.832 2.835
2.838
5.7 2.841
2. 844
2.847
2.850
2.853
2.856
2.859
2.862
2.865
2.868
5.8
2.871
2. 874
2.877
2.880
2.883
2.886 2.889 2.892 2.895
2.898
5.9
2.901
2.904
2.907 2.910 2.913
2.915
2.918 2.921
2.924
2.927
6.0
2.930
2.933
2.936 2.939 2.942
2.945
2.948 2.951
2.954
2.956
6.1
2.959
2.962
2.965
2.968
2.971
2.974 2.977
2.980
2.983
2.985
6.2
2.988
2. 991
2.994
2.997
3.000
3.003 3.006
3.009
3. 011
3. 014
6.3
3. 017
3.020
3.023
3.026
3.029
3.032 | 3.034
3.034
3.037
3.040
3.043
6.4
3.046
3.049
3.052
3.054 3.057
3.060
3.063
3.066
3.069
3.071
6.5
3.074
3. 077
3.080
3.083
3.086
3.088
3.091
3.094
3.097
3. 100
6.6
3.103
3. 105
3. 108
3. 111
3. 114
3. 117
3. 119
3. 122
3. 125
3. 128
6.7
3. 131
3. 134
3. 136
3. 139
3. 142
3. 145
3. 148
3. 150
3.153
3. 156
6.8
3. 159
3. 161
3. 164
3. 167
3.170
3. 173
3. 175
3. 178
3. 181
3. 184
6.9
3. 186
3. 189
3. 192
3. 195
3. 198
3.200
3. 203
3. 206
3.209
3. 211
7.0 3.214
3. 217
3.220
3. 222
3. 225
3.228
3. 231
3.233
3. 236
3. 239
7.1
3.242
3.244
3. 247
3. 250 | 3.253
3.255
3.258
3.261
3. 263
3. 266
7.2
3. 269
3.272
3. 274
3.277
3.280
3. 282
3. 285
3. 288
3. 291
3.293
7.3
3. 296
3. 299
3.301
3.304
3.307
3.310
3.312
3.315
3. 318
3. 320
7.4
3.323
3.326
3.328
3.331
3. 334
3.337
3.339
3.342
3.345
3.347
7.5
3. 350
3. 353
3.355
3.358
3.361
3.363
3.366
3. 369
3.371
3.374
7.6
3. 377
3.379
3. 382
3.385
3. 387
3.390
3.393
3.395
3.398
3. 401
7.7
3.403
3.406
3.409
3.411
3. 414
3.416
3.419
3.422
3. 424
3.427
7.8 3.430
3. 432
3.435
3.438
3.440
3.443
3.446
3. 448
3.451
3.453
7.9 3.456
3. 459
3. 461
3. 464
3. 467
3.469
3.472
3.474
3.477
3.480
8.0
3.482
3.485
3.487
3.490
3.493
3.495
3.498
3.500
3.503
3. 506
8.1
3.508
3. 511
3. 513
3. 516
3. 519
3. 521
3. 524
3.526
3. 529
3. 532
8.2
3. 534
3. 537
3.539
3. 542
3.545
3. 547
3.550
3. 552
3.555
3. 557
8.3
3.560
3. 563
3. 565
3.568
3. 570
3.573
3.575
3.578
3.581
3.583
8.4
3.586
3.588
3.591
3.593
3. 596
3.598
3.601 3.604
3.606
3.609
8.5
8.6
8.7
8.8
8.9
6∞ & Ga
3. 611
3. 614
3.616
3. 619
3. 621
3.624
3.626 3.629 3.632
3.634
3. 637
3.639
3.642
3. 644
3.647
3. 649
3.652 3.654 3.657
3.659
3.662
3.664
3.667
3.670
3.672 3.675
3.677
3.680
3.682
3.685
3.687
3.690
3.692 3.695
3.697 3.700
3.702
3.705
3.707
3. 710
3. 712
3.715
3.717
3.720 3.722 3.725
3.727
3. 730
3. 732
3.735
9.0
3.737
3.740
3.742
3.745 3.747 3.750
3.752
3.755
3.757
3.760
9.1 3. 762
3.765
3.765
3.767
3.769
3.772 3.774
3.777 3.779
3.782
3. 784
9.2
3. 787
3. 789
3.792
3. 794
9.3
3.811
3.814
3.816
3.819
9.4
3.836 3.838
3.841 3.843
3.797 3.799
3.821 3.824 3.826 3.829
3.846 3.848 3.851
3.802
3.804
3.807
3.809
3.831
3.834
3.853 3.856
3.858
9.5 3.860 3.863 3.865 3.868
9.6 3.885 3.887 3.890 3.892
9.7 3.909 3.911 3.914 3.916
9.8 3.933 3.936 3.938 3.940
3.870
3.873
3.894 3.897
3.919 3.921
3.943 3.945
3.875 3.877 3.880 3.882
3.899 3.902 3.904 3.907
3.923 3.926 3.928
3.948 3.950 3.952
3.931
3. 955
9.9
3.957 3.960 3.962 3.964
3.979
3.967 3.969
3.972 3.974 3.976
304
HYDRAULIC TABLES
Table 20.-Three-fifths powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
10.4
10.0 3.981 3.983 3.986 | 3.988 | 3.991 3.993 3.995
10.1 4.005 4.007 4.010 | 4.012 | 4.014 | 4.017 | 4.019
10.2 4.029 4.031 4.033 4.036 4.038 4.040 4.043
10.3 4.052 4.055 4.0574.059
4.076 4.078 | 4.081 4.083
3.995
3.998
4.000
4.003
4.022
4.024
4.026
4.045
4.048
4. 050
4.062
4.064
4.066
4.069 4.071
4.074
4.085
4.088
4.090
4.092 | 4.095
4.097
10.5
4.099
4.102 | 4. 104
4. 106
4.109
4.111
4. 113
4.1164.118
4. 120
10.6
4. 123
4. 125
4. 127
4. 130
4. 132
4. 134
4.137
4. 139 4.141
4. 144
10.7
4.146
4. 148
4.151 4.153
4. 155
4. 158
4. 160
4.162 | 4.165
4. 167
10.8
4.169
4. 172
4. 174 | 4.176
4.178
4. 181
4. 183
4.185 4.188
4.190
10.9
4. 1924. 1954. 1974. 199
4.202 | 4.204
4.206
4.208
4.211
4. 213
11.0
4. 215 4. 218 | 4.220 4.222
4.225
4. 227 | 4.229 | 4.231
4. 234
4.236
11. 1
4.238
4.241 4.243 | 4.245
4. 247
4.250
4. 252
4.254
4.257
4.259
11.2
4.261
4.263
4.266 4.268
4.270
4. 273
4. 275
4.277
4.279
4.282
11.3
4. 284
4.286
4. 289
4.291
4. 293
4.295
4. 298
4.300 4.302
4.304
11.4
4.307
4.309
4.311
4.313
4.316
4.318
4.320
4.323 4.325
.4.327
11.5
4. 329 | 4.332 | 4.334
4.336 | 4.338 | 4.341
4. 343
4.345 | 4.347
4.350
11. 6
4.352 4.354 4.356
4.359 4.361 4.363
4.365
4.368 4.370
4.372
11.7
4.374 4. 377
4.379
4. 381
4.383
4.386
4.388
4.390
4.392
4. 394
11.8
4.397
4.399
4.401
4.403
4.406
4.408
4.410
4.412
4. 415
4.417
11.9
4. 419
4. 421
4.424 | 4.426
4.428
4. 430
4.432
4.435
4. 437
4.439
12. 0
4. 441
4.444
4. 446
4.448
4.450
4.452
4.455
4.457 | 4.459
4. 461
12. 1
4.463
4.466
4.468
4.470
12.2
4.486 4.488
4.490
4.492
12. 3
4.508 | 4.510
4. 512
4.514
4. 516
4.472 4.475 4.477
4.494 4.497 4.499
4.519 4.521
4.479 4.481
4.483
4.501 4.503
4.505
4.523
4.525
4.527
12. 4
4.530
4.532
4.534
4.536
4. 538
4.540 | 4.543 4.545
4.547
4.549
12.5
4. 551
4. 554
4.556
4.558
4.560 4.562 4.565
4.567 4.569
4.571
12.6
4.573
4.575 4.578
4.580
4. 582 | 4.584
4.586
4.588 4.591
4. 593
12.7 4.595
4.597 4.599 4.601
4.604 4.606
4.608
4.610
4.612
4. 614
12.8 4.617
12.9
4.619 4.621
4.638 4.640 4.643 4.645
4.623
4.625 4. 627
4. 630
4.632
4.634
4.636
4.647
4. 649
4.651
4. 653
4.655
4. 658
13.0
4.660 4.662 4.664 4.666
4.668
4.671
4.673
4.675 4.677
4.679
13. 1
4. 681
4.683 4.686
4.688
4.690
4.692
4. 694
4.696 4.698
4.701
13.2
4.703 4.705 4.707
4.709
4.711
4. 713
4.715
4.718
4.720
4.722
13.3 4.724 4.726 4.728 4. 730
4.733
4.735
4.737 4.739 4.741
4.743
13.4 4.745 4.747
4.750
4.752 | 4.754
4.756
4.758 4.760
4.762
4.764
13.5 4.767 4.769 4.771 4.773 4.775 4.777 4.779
13.6 4.788 4.790 4.792 4.794 4.796 4.798 4.800
13.7 4.809 4.811 4.813 4.815 4.817 4.819 4.821
13.8 4.830 4.832 4.834 4.836 4.838 4.840
13.9 4.851 4.853 4.855 4.857 | 4.859 4.861
4.781 4.783
4.786
4.802
4.805
4.807
4.823 4.826
4.828
4.842 4.844 4.847
4.849
4.863 4.865 4.867
4.870
14.0
14. 1
14.2
14.3
4.934 | 4.936 4.938
4.872 | 4.874 4.876 4.878 4.880
4.893 | 4.895 4.897 4.899 4.901 4.903
4.913 4.915 | 4.917 4.920 4.922 | 4.924
4.940 4.942 4.944
4.882 4.884 4.886 4.888
4.890
4.905
4.907 4.909
4.911
4.926
4.928 4.930
4.932
4.946
4.949 4.951
4.953
14. 4
4. 973
4.955 4.957 4.959
4.967 4.969 4.971
4.961 4.963 4.965
HYDRAULIC TABLES
305
Table 20.-Three-fifths powers of numbers—Continued

Number 00
01
.02
2 .03 .04 .05 .06
.07 .08
.09
14. 5
4.975
4.977 4.979
4.981
4.984 4.986
4.988
4.990
4.992
4.994
14.6 4.996
4.998
5.000
5. 002
5.004
5.006
5. 008
5. 010
5.012
5. 014
14.7
5.016
5. 018
5.020
5.023
5.025
5.027
5. 029
5.031
5.033
5.035
14.8
5.037
5.039
5.041
5.043
5. 045
5.047
5.049
5. 051
5.053
5.055
14.9
5. 057
5.059
5.061
5.063
5.065
5.067
5.069
5. 071
5.073
5.076
15. 0
5.078
5. 080
5.082
5.084
5.086
5.088
5.090
5.092
5.094
5.096
15. 1
5.098
5.100
5.102
5. 104
5. 106
5. 108
5. 110
5. 112
5. 114
5. 116
15.2
5. 118
5. 120
5. 122
5. 124
5. 126
5. 128
5. 130
5. 132
5. 134
5. 136
15.3
5. 138
5. 140
5. 142
5. 144
5. 146
5. 148
5. 150
5. 152
5. 154
5. 156
15.4
5. 158
5. 160
5.162
5. 164
5. 166
5. 168
5.170
5. 172
5. 174
5. 176
15.5
5. 178
5. 180
5.182
5. 184
5. 186
5. 188
5. 190
5. 192
5. 194
5. 196
15.6
5. 198
5.200
5.202
5. 204
5. 206
5.208
5. 210
5. 212
5. 214
5. 216
15.7
5. 218
5. 220
5. 222
5. 224
5. 226
5. 228
5. 230
5. 232
5. 234
5.236
15.8
5. 238
5. 240
5. 242
5. 244
5. 246
5. 248
5. 250
5.252
5. 254
5.256
15.9
5. 258
5. 260
5. 262
5.264
5. 266
5. 268
5. 270
5. 272
5. 274
5.276
16.0
5.278
5.280 5.282
5. 284
5. 286
5. 288
5.290
5. 292
5. 294
5. 296
16.1
5. 298
5.300
5.302
5.304
5.306
5.308
5. 310
5. 312
5. 314
5.316
16.2
5. 318
5. 319
5.321
5. 323
5. 325
5.327
5.329
5. 331
5.333
5. 335
16.3
5.337
5.339
5. 341
5.343
5. 345
5.347
5.349
5. 351
5. 353
5.355
16.4 5.357
5.359
5.361
5.363.
5.365
5.367
5.369
5.371
5.372
5.374
16.5
5.376
5.378
5.380
5.382
5.384
5.386
5.388
5.390
5.392
5.394
16. 6
5.396
5.398
5.400
5.402
5. 404
5.406
5. 408
5. 410
5. 412
5.413
16.7
5. 415
5. 417
5.419
5. 421
5.423
5. 425
5. 427
5.429
5. 431
5.433
16.8
5. 435
5. 437
5. 439
5,441
5. 443
5. 445
5. 446
5.448
5.450
5.452
16.9
5. 454
5.456
5. 458
5. 460
5. 462
5. 464
5.466
5.468
5.470
5.472
17.0
5. 474
5.475
5.477
5.479
5. 481
5.483
5. 485
5.487
5. 489
5.491
17.1
5.493
5.495
5.497
5.499
5. 501
5.502
5.504
5.506
5.508
5.510
17.2
5. 512
5. 514
5. 516
5. 518
5. 520
5.522
5. 524
5. 526
5. 527
5.529
17.3
5. 531
5. 533
5. 535
5.537
5.539
5. 541
5. 543
5. 545
5.547
5.549
17.4
5.550
5. 552
5. 554
5.556
5.558
5. 560
5. 562
5. 564
5.566
5.568
17.5
5.570
5.571
5.573
5.575
5.577
5. 579
5. 581
5. 583
5.585
5.587
17.6
5. 589
5. 591
5. 592
5. 594
5. 596 | 5.598
5.600
5.602
5.604.
5.606
17.7
5.608
5.610
5.611
5. 613
5. 615
5.617
5. 619
5. 621
5. 623
5.625
17.8
5. 627
5.629
5. 630
5. 632
5. 634
5.636
5. 638
5. 640
5.642
5. 644
17.9
5. 646
5.648
5.649 5. 651
5.653
5.655
5. 657
5.659
5.661
5.663
18.0
5.665
5.666
5.668 5.670
5.672
5. 674
5.676
5.678
5.680
5.682
18. 1
5.683
5. 685
5.687
5.689
5. 691
5. 693
5.695
5.697
5.698
5.700
18.2
5.702
5. 704
5.706
5.708
5.710
5. 712
5.713
5. 715
5.717
5. 719
18.3
5. 721
5.723
5.725
5.727
5.728
5.730
5.732
5.734
5.736
5.738
18.4
5. 740
5.742
5.743
5. 745
5.747
5. 749
5.751
5.753 5.755
5.757
18.5
5.758
5.760
5.762
5. 764
5. 766
5.768
5.770
5.771 5.773
5.775
18.6
5. 777
5. 779
5.781
5.783
5.785
5.786 5.788 5.790 5.792
5.794
18.7
5.796
5. 798
5.799
5.801
5. 803
5.805 5.807 5.809 5.811
5.812
18.8
5.814
5.816
5. 818
5.820
5. 822
5.824 5.825 5.827 5.829
5.831
18.9
5.849
5.833
5.844 5.846 5.848
5. 835
5.842
5.837
5.840
5.838
306
HYDRAULIC TABLES
Table 20.-Three-fifths powers of numbers-Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
19.0
5. 851
5. 853
5.855
5.857
5.859
5.861
5. 862
5.864
5. 866
5.868
19, 1
5. 870
5. 872
5. 873
5.875
5. 877
5.879
5.881
5.883
5.884
5.886
19.2
5.888
5.890
5.892
5.894
5. 896
5.897
5.899
5.901
5.903
5.905
19.3❘ 5.907
5.908
5.910
5.912
5.914
5.916
5.918
5.919
5. 921
5.923
19.4 5.925 | 5.927
5.929
5.930
5.932
5.934
5.936
5.938
5.940
5.941
19,5
5.943 5.945
5.947 5.949
5.951
5.952
5.954
5.956 | 5.958
5.960
19.7
19,6 5.961
5.980
5.963
5. 982
5.983
19,8 5.998 | 6.000
6.002
5.965 5.967 5.969
5.985
6.003 6.005
5.971 5.972
5.974 5.976
5.978
5.987
5.989 | 5.991
5.992
5.994
5.996
6.007 6.009 6.011
6.012
6.014
19.9 6.016 | 6.018
6.020
6.022 | 6.023
6.025 | 6.027 | 6.029
6.031
6.032
20.0❘ 6.034 6.036
20.1
6.052
6.038
6.054 6.056
6.040 6.041
6.043 | 6.045
6.047
6.049
6.050
6.058
6.059
6.061 6.063
6. 065
6.067
6.069
20.2
6.070
6.072 | 6.074 6.076
6.078
6.079
6.081
6.083
6.085
6.087
20.3
6.088
6. 090
6.092 | 6.094
6.096
6.097
6. 099
6. 101
6. 103
6. 105
20.4
6. 106
6. 108
6.110
6. 112 | 6. 113
6. 115
6. 117
6. 119
6. 121
6. 122
20.5 6. 124
6. 126
6. 128
6. 130
6. 131
6. 133
6. 135 |
6.137
6. 139
6. 140
20.6
6. 142 |
6. 144
6. 146
6. 148
6. 149
6. 151
6. 153
6. 155
6.156
6. 158
20.7 6. 160
6. 162
6. 164
6. 165
6. 167
6. 169
6. 171
6. 173
6. 174
6. 176
20.8
6. 178
6. 180
6. 181
6. 183
6. 185
6. 187
6.189
6. 190
6. 192
6. 194
20.9
6.196
6. 197
6.199
6. 201
6. 203
6. 205
6. 206
6. 208
6. 210
6. 212
21.0
6. 213
6. 215
6. 217
6. 219
6. 221
6. 222 |
6. 224 |
6.226
6. 228
6. 229
21.1
6. 231
6. 233
6. 235
6. 236
6. 238
6. 240
6. 242
6. 244
6. 245
6. 247
21. 2
6.249 6. 251
6. 252
6. 254
6. 256
6. 258
6. 259
6. 261
6. 263
6. 265
21.3
6.267 | 6. 268
6. 270
6. 272
6. 274
6. 275
6. 277
6. 279
6. 281
6. 282
21.4
6. 284
6.286
6. 288
6. 289
6. 291
6.293
6. 295
6. 297
6.298
6. 300
21.5
6.302 | 6.304
6. 305
6.307 | 6.309
6.311
6. 312
6. 314
6. 316
6. 318
21.6
6. 319
6. 321
6.323
6.325 6.326
6. 328
6. 330
6.332
6.333
6. 335
21.7
6. 337
6. 339
6.340
6. 342
6.344 | 6.346
6. 347
6. 349
6.351
6. 353
21.8
6. 354
6.356
6.358
6.360 | 6.361 6.363
6.365
6.367
6. 368
6.370
21.9
6. 372 | 6.374
6.375
6.377 6.379
6.381
6.382
6.384
6.386
6.388
22.0
6.389 6.391
6.393
6. 395 | 6.396
6.398
6.400 6.401
6.403
6.405
22. 1
6.407
6.408
6.410
6.412
6. 414
6. 415
6.417
6.419
6. 421
6. 422
22.2
6. 424
6. 426
6. 428
6. 429
6.431
6.433
6. 435
6.436
6.438
6.440
22.3
6. 441
6.443
6. 445
6.447
6. 448
6. 450
6.452
6.454
6.455
6.457
22. 4
6.459
6.460
6.462
6.464
6.466
6.467
6. 469
6. 471
6.473
6.474
22.5
6.476
6.478
6.479
6.481
6.483
6.485
6. 486
6.488
6.490
6. 492
22.6
6. 493
6. 495
6. 497
6.498
6.500
6.502
6. 504
6. 505
6.507
6. 509
22.7
6. 511
6. 512
6. 514
6. 516
6. 517
6. 519
6. 521
6. 523
6. 524
6.526
22.8
6.528
6.529
6.531
6. 533
6. 535
6.536
6.538
6. 540
6. 541
6.543
22.9
6.545
6.547
6. 548 6. 550
6.552
6.553
6.555
6.557
6.559
6. 560
23.0
6.562 | 6.564
6.565 6.567
6. 569
6.571
6.572
6.574
6.576
6.577
23. 1
6.579
6. 581
6.583
6.584
6. 586
6.588
6.589
6. 591
6. 593
6.594
23. 2
6. 596
6.598 6.600 6.601
6.603
6. 605
6.606
6.608
6.610
6.612
23.3
6.613
6.615 6.617
6.618
6.620
6.622
6.623
6.625
6.627
6. 629
23.4 6.630 6.632 6.634
6.646
6. 635
6.644
6. 637
6. 642
6. 639
6.640
HYDRAULIC TABLES
307
Table 20.-Three-fifths powers of numbers—Continued

Number .00
.01
.02
.03
.04
.05
.06
.07
.08
.09
23.5 6.647 6.649 6. 651
6.652
6.654 | 6.656
6.657
6.659
6. 661
6.662
23.6 6.664
6.666 | 6, 668
6.669
6.671 6.673
6. 674
6.676
6.678
6.679
23.7 6.681
6.683 6.685
6.686
6.688
6. 690
6. 691
6.693
6. 695
6. 696
23.8
6.698 6.700
6.701 6.703
6.705
6.706
6.708
6. 710
6.712
6.713
23.9
6.715 6.717
6.718 | 6.720
6.722
6.723
6.723
6.725
6.727
6.728
6. 730
24.0
6. 732
6. 733
6.735
6. 737
6.738
6.740
6. 742
6.744
6. 745
6. 747
24.1
6.749
6. 750
6. 752
6.754
6.755
6.757
6.759
6.760
6.762
6.764
24.2 6.765
6.767
6.769
6.770
6.772
6. 774
6.775
6.777 6.779
6.780
24.3 6.782
24.4
6.799
6.784 6.785 6.787 6.789
6.801 6.802 6.804
6.790
6.792
6.794
6.795
6.797
6.806
6.807
6.809
6.811
6.812
6. 814
24.5
6. 816
6.817 | 6.819 | 6.821
6.822 | 6.824
6.826
6. 827
6. 829
6.831
24.6
6.832
6.834 6.836 6.837
6.839
6. 841
6. 842
6. 844
6. 846
6.847
24.7 6.849
6.851 6. 852
6.854
6.856
6. 857
6.859
6.861
6.862
6.864
24.8
6.865
6.867 6.869
6.870
6.872
6.874 | 6.875 | 6.877
6.879
6.880
24.9
6.882
6.884 | 6.885 6.887
6.889
6.890 6.892 6.894
6.895
6.897
25.0
6.899
25. 1
6.915 6.917
25.2
6.932
6.900 6.902 | 6.904
6.919 6.920
6.933 6.935 6.937 6.938
25.3 6.948 6.950 6.952 6.953 6.955
25.4❘ 6.965 6.966 6.968
6.905
6.907 6.909
6.910
6.912
6. 914
6.922
6.923 | 6.925
6.927
6.928
6.930
6.940 6.942
6.943
6.945
6. 947
6.956
6.958
6.960
6. 961
6.963
6.970
6.971
6. 973
6.975
6.976
6.978
6.979
25.5 6.981 6.983 6.984 6.986
6.988
6.989 6.991
6.993
6.994
6. 996
25.6 6.998 6.999
7.001 | 7.002
7.004
7.006| 7.007
7.009
7.011
7.012
25.7
7.014 7.016
7.017 7.019
7.020
7.022 7.024
7.025 7.027
7.029
25.8 7.030 7.032
25.9 7.047 7.048
7.034 7.035
7.037
7.038
7.040 7.042 | 7.043
7.045
7.050
7.052
7.053 7.055
7.056 | 7.058 7.060
7.061
26.0
26.1
7.063 7.065 7.066
7.079 7.081
7.068
7.069 | 7.071
7.073
7.074
7.076
7.078
7.082
7.084
7.086 7.087
7.089
7.091
7.092
7.094
26. 2
7.095 7.097
7.099
7. 100
7. 102 | 7.104
7. 105
7.107
7.108
7. 110
26.3 7.112 7.113
7.115
7.117
7.118 7.120
7. 121
7.123
7. 125
7.126
26.4
7.128 7.130
7. 131
7. 133
7. 134
7.136
7. 138
7.139
7.141
7.142
26.5 7.144
7.146
7. 147
7. 149
7. 151
7.152
7. 154
7. 155
7.157
7.159
26.6
7.160
7.162 | 7.163
7.165
7. 167
7.168
7.170
7.172
7. 173
7. 175
26.7
7.176
7. 178
7.180
7. 181
7.183
7. 184
7. 186
7.188
7.189
7. 191
26.8
7. 193
7. 194
7.196
7. 197
7.1997.201
7.202
7.204 7.205
7.207
26.9
7.209
7.210
7. 212 | 7. 213 | 7.215
7. 217
7. 218
7.220 7.221
7.223
27.0 7.225
7.226
7.228
7.229
7.231
7.233
7.234
7.236 7. 238
7.239
27.1 7.241
7.242
7.242
7. 244 7.246
7.247
7. 249
7.250
7.252
7. 254
7.255
27.2 7.257
7.258
7.260 7.262
7.263 | 7.265
7.266 7.268 7.270
7.271
27.3 7.273
7.274 7.276 7.278 7.279
27.4 7.289
7.290 7.292 | 7.293
7.295
7. 281 | 7.282 | 7.284 | 7.286
7.297 7.298 7.300 7.301
7.287
7.303
27.5 7.305
7.311
7.306 7.308 7.309
27.6 7.321 7.322 7.324 7.325 7.327 7.329 7.330 7.332 7.333
27.7 7.336 7.338 7.340 7.341 7.343 7.344 7.346 7.348 7.349 7.351
27.8 7.352 7.354 7.356 7.357 7.359 7.360 7.362 7.363 7.365 7.367
7.313
7.314 7.316 7.317
7.319
7.335
27.9 7.368 7.370 7.371 7.373 7.375 7.376 7.378 7.379 7.381 7.382
308
HYDRAULIC TABLES
Table 20.-Three-fifths powers of numbers-Continued

Number .00 .01
.02
03
04 .05
.06 .07
08
09
•
28.0 7.384 7.386 7.387
28.1 7.400 7.401
28.2 7.416 7.417
28.3❘ 7.431 7.433
28.4 7.447 | 7.449
7.389
7.403 7.405
7.419 7.420
7.435 | 7.436 7.438 7.439 7.441
7.450 | 7.452 | 7.453 7.455 7.457
28.5 7.463 | 7.464 | 7.466 | 7.468
28.6 7.479 7.480 7.482 7.483
28.7 | 7.494 7.496 7.497 | 7.499
28.8 7.510 | 7.511 | 7.513 | 7.515
28.9 | 7.526 | 7.527 | 7.529 7.530
7.390 7.392 7.394 7.395 7.397
7.406 7.408 7.409 7.411 7.412
7.398
7.414
7.422 | 7.424 | 7.425
7.427
7.428
7.430
7.442
7.444
7.446
7.458
7.460 7.461
7.469 7.471
7.485 | 7.486
7.501 7.502
7.516 7.518
7.532 | 7.533
7.472 7.474
7.475
7.477
7.488 | 7.490
7.491
7.493
7.504 7.505
7.507
7.508
7.519
7.521
7.522
7.524
7.535
7.536 7.538
7.540
29.07.541
7.543 7.544 | 7.546 | 7.547 7.549
29.1 7.557 | 7.558 | 7.560 7.561 7.563 7.565
29.2 7.572 | 7.574 | 7.575 7.577
29.3 7.588 7.589 7.591 7.593
7.551
7.552 7.554
7.555
7.566 7.568
7.569
7.571
7.579 7.580
7.582 7.583
7.585
7.586
7.594 7.596
7.597 7.599
7.600
7.602
29.4 | 7.603 | 7.605 | 7.607 | 7.608 | 7.610 | 7.611
7.613 7.614
7.616
7.617
29.5 7.619 7.620 | 7.622 | 7.624 | 7.625
7.627
7.628 7.630
7.631
7.633
29.6
7.634 | 7.636 | 7.638 | 7.639 | 7.641
29.7
7.650 7.651 7.653 7.655 | 7.656
29.8 7.665 7.667 7.668 7.670 7.671
29.9
7.681 7.682 7.684 7.685
7.642
7.644 7.645
7.647
7. 648
7.658
7.659 7.661 7.662
7.664
7.673
7.675 7.676
7.678
7.679
7.687
7.688
7.690 7.692
7.693
7.695
Number .0
.1
.2
.3
.4
.5
.6
.7
.8
.9
30
31
7.696 | 7.712 7.727 7.742 7.758
7.849 7.864 7.879 7.895 7.910
7.773
7.788 7.803
7.819
7.834
7.925
7.940
7.955
7.970
7.985
32
8.000
8.015 | 8.030 | 8.0458.060
8.075
8.090
8.105
8.119
8. 134
33
8. 149
34
8.296
8.311
8.164 8.179 8.193 8.208
8.326
8.223
8. 238
8.252
8.267
8.282
8.340 | 8.355
8.369
8.384
8.398
8.413
8.427
35
8.442 8.456 | 8.471
36
37
38
39
8.485 8.500
8.500 8.514
8.586 8.600 8.614 8.629 | 8.643 | 8.657
8.728 | 8.742 | 8.756 | 8.771 8.785 8.799
8.869 8.883 | 8.897 | 8.911 8.925
9.008 | 9.022 9.036 | 9.050 | 9.064
8.528 8.543
8.557
8.571
8.671
8.686 8.700
8.714
8.813
8.827 8.841
8.855
8.939
8.953 8.967
8.980
8.994
9.077
9.091 9.105 9.119
9.132
42
9.418 9.4319.445
43
9.552 9.565 9.578
44
9.684
9.698 | 9.711
40 9.146 9.160 9.174 | 9.187 9.201
41 9.283 9.296 9.310 9.323 9.337 9.350
9.458 9.472 9.485
9.592
9.592 9.605 9.618
9.724 | 9.737
9.215
9.228
9.242 9.255
9.269
9.364
9.377 9.391
9.404
9.498
9.512 9.525
9.538
9.631 9.645 9.658
9.671
9.750 9.763
9.777 9.790
9.803
45
46
9.816 9.829 9.842
9.946 9.959 9.972
9.855 9.868 9.881
9.894
9.907 9.920
9.933
9.985 | 9.998 |10. 01
10.02
10.04
10.05
10.06
47
10.08 10.09 10. 10
10. 11
10. 13
10. 14
10.15
10. 17
10. 18
10.19
48
10. 20
10.22
10.23
10.24
10.25
10.27 10.28
10.29
10.31
10.32
49
10.33
10.34 10.36
10.37 10.38
10.39 10.41 10.42 10.43
10.44
50
10.46
10.47 10.48
10.49 10.51
51
10. 58
10.59 10.61
52
10.71
10. 72
53
10.83
10.84
10.52 10.53 10.54 10.56
10.62 10.63 10.64 10.66 10.67 10.68
10.73 10.74 10.75 10.77 10.78 10.79
10.85 10.87 10.88 10.89 10.90
10. 57
10.69
10.80
10.82
10.91 10.93
10.94
54 10.95
11.06
10.96
10.97 10.99 11.00 11.01 11.02 11.04 11.05
HYDRAULIC TABLES
309
Table 20.—Three-fifths powers of numbers—Continued

Number
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
B8588 88883 88588 272** ***8X2 8788* ***** *18** *****
55
11.07
11.08
11. 10 | 11. 11
11. 12
11. 13
11. 14
11.16
11. 17
11. 18
57
56 11. 19
11. 31
11.20
11. 22 | 11. 23
11. 24
11. 25
11. 26
11. 28
11. 29
11.30
11.32
11.34
11.35
11.36
11.37
11.38
11.39
11. 41
11.42
11.43
11.44 11.45
11. 47
11.48
11.49
11.50
11.51
11.52
11. 54
59
11.55
11.56 11.57
11.58
11. 60❘
11. 61
11.62
11.63 | 11.64
11.65
60 11.67 11.68
11.69
11.70
11.71
11. 72 | 11. 74
11.75 11.76
11.77
12.01
12. 13
12.24 12.25 |
61 11.78 11.79
62 11.90 11.91
63
64
65
66 12.35 12.36
67 12.46 12.47
68 12.57 12.59
69 12.69 12.70
12.60
70
71 12.90
12.90 12.92 12.93
|
72 13.01
13.02 13.04
11.80
11.82 | 11.83
11.84 11.85
11.86 11.87
11.89
11.92
11.93 11.94
11.95 11.97
11.98 11.99
12.00
12.02
12.03
12.05
12. 14
12. 15
12.16
12.06 | 12.07 | 12.08
12.17 | 12. 18 | 12. 19
12.09
12.10
12.11
12. 21
12.22
12. 23
12.26 | 12. 27 |
12.37 12.39
12.49 | 12.50
12. 28 | 12.30 | 12.31
12.40
12.51
12.32 12.33
12.34
12.61 12.62
12.71
12.72 | 12.73
12.41 12.42
12.52 12.53
12.63 12.64
12.74 | 12. 75
12.75
12.43 | 12.44
12.45
12.54 12.55
12.56
12.65 12.66
12.67
12.76
12.77
12.78
12.80 12.81 12.82
12.83 | 12.84
12.85 12.86
12.87 12.88
12.89
12.94 12.95
12.96 12.97 12.98
12.99
13.00
13.05
13.06
13.07
13.08
13.09
13. 10
13. 11
73
13.12
13. 13
13. 14
13. 15
13.16
13. 18
13. 19
13. 20 | 13. 21
13. 22
74
13. 23
13.24
13. 25
13. 26
13. 27
13. 28 |
13. 29
13.30
13.32
13. 33
75
13.34
13.35 13.36
13.37
13.38 | 13.39 |
13. 40
13. 41
13.42
13.43
76
13. 44
13.45
13.46
13.47 13.49 13.50
13. 51
13.52
13.53
13. 54
77
13. 55
13.56
13. 57
13.58 13.59 13.60
13. 61.
13. 62
13.63
13. 64
78
13.65
13.66
13.67
13.69 13.70
13.71
13.72
13.73
13.74
13.75
79
13. 76
13. 77
13.78
13.79
13.80
13. 81
13.82
13.83
13.84
13.85
80 13.86 13.87
13.88
13.89 13.90
13.91
13.93
13. 94
13.95
13.96
81
13.97
13.98 13.99
14.00
14.01
14.02
14.03
14.04
14.05
· 14.06
82
14.07
14.08
14.09
14. 10
14. 11
14. 12
14. 13
14. 14
14. 15
14. 16
83
14.17 14. 18
14. 19
14. 20
14. 21
14. 22 |
14. 23
14. 23
14. 24
14.25
14. 26
84
14.27
14. 28
14. 30
14. 31
14.32
14. 33
14.34
14. 35
14.36
14.37
85 14.38
14.39
14.40
14. 41
14. 42
14. 43 |
14. 44
14.44
14. 45
14.46
14. 47
86
14.48
14.49
14.50
14.51
14.52
14.53
14. 54
14. 55
14.56
14. 57
87
14. 58
14.59
14.60
14.61
14.62 14.63
14.64
14. 65
14.66
14. 67
88
14.68
14. 69
14.70
14. 71
14.72 | 14.73 | 14.74
14.75
14.76 ·
14.77
89
14. 78
14. 79
14.80
14.81
14.82 14. 83
14.84
14.85
14.86
14.87
90 14.88 14. 89
14.90
14.91
14.92 14.93 14.94
14.95
14.96
14.97
91
14.98
14.99
15.00
15.01
15.02
15.03 15.04
15.05
15.06
15.07
92 15.08
15.09
15. 10
15.10
15. 11
15. 12❘ 15. 13
15. 14
15. 15
15. 16
93 15.17 15. 18
15. 19
15.2015. 21
15.22 15. 23
15.24
15.25
15. 26
94 15.27 15. 28
15.29
15.30
15. 31
15.32 | 15. 33
15. 34
15. 35
15.36
95
15.37
15.38
15.39
15.40
15. 41
15. 42
15.43
15.44
15. 45
15. 46
96
15. 47
15.48
15. 48
15.49
15. 50
15.51
15.52
15. 53
15. 54
15.55
97
15.56
15.57
15.58
15.59
15.60
15. 61
15.62
15. 63
15. 64
15.65
98
15.66
15.67
15.68
15.69 15.70
15. 71
15. 72
15.72
15. 73
15.74
99
15. 75
15.76
15.77
15.78 | 15.79
15.80
15.81
15.82
15.83
15.84
310
HYDRAULIC TABLES
Table 20.-Three-fifths powers of numbers-Continued

Number 0
12
3
4
5
6
7
8
9
100 15.85
15.94
16. 04
16. 13
16.23
16.32
16. 41
16.51
16. 60
16.69
110
16.78
16.87
16.96
17.05
17. 15
17.24
17.33
17.41
17.50
17.59
120
17.68
17.77
17.86
17.94
18.03
18. 12
18. 21
18.29
18.38
18.47
130
18. 55
18. 64
18.72
18.81
18.89
18.98
19.06
19. 14
19.23
19. 31
140
19.39
19.48
19.56
19.64 | 19.73
19.81
19.89
19.97
20.05
20. 13
150
20.21
20. 29 | 20.38 |
20.46 | 20.54
20.62
20.62
20.70
20.77
20.85
20.93
160 21.01
21.09 21.17
21. 25❘ 21. 33 | 21.40
21.48
21.56 21.64
21.71
170 21.79
21.87
21.94
22.02 | 22.10 | 22.17
22.25
22.32 | 22,40
22. 48
180 22.55 22.63
22.70
22.78 22.85 22.92
23.00
23.07
23. 15
23. 22
190
23.29 23.37
23. 44
23. 51
23.51 | 23.59 | 23.66
23.73
23.81
23.88
23.95
200
24.02
24.09
24. 17
24. 24 |
24. 31 | 24.38
24. 45
24.52
24, 59
24.67
210
24.74
24.81
24.88
24.95 25.02
25.09
25. 16
25. 23
25.30
25.37
220 25.44
25. 51
25.57
25.64
25.71
25.78
25.85
25.92
25.99
26.06
230 26.12
26. 19
26. 26
26.33
26. 40
26. 46
26.53
26.60
26.67
26.73
240 26.80
26.87
26.93
27.00
27.07
27.13
27.20 | 27.27
27.33
27.40
250 27.46 27.53
260 28.12 28.18 28.25
27.60 27.66
27.73
27.79
27.86 27.92
27.99
28.05
28.31 28.38
28.44
28.51
28.57
28.63
28.70
270 28.76 28.83
28.89
28.95 29.02
29.08
29. 14
29. 21
29.27
29.33
280 29.40 29.46
29.52
29.59
29.65
29.71
29.77
29.84
29.90
29.96
290 30.02 30.08
30. 15
30.21❘ 30.27
30.33
30.39 | 30.45
30.52
30.58
300 30.64 30.70 30.76
30.82
30.88
30.94
31.01
31.07
31. 13
31. 19
310 31.25 31.31 31.37
31.43
31.49
31.55
31.61
31.67
31.73
31.79
320
31.85 31.91
31.97
32.03
32.09
32. 15
32. 21
32.26
32.32
32.38
330
32. 44
32.50 32.56
32.62
32.68
32.74
32.79
32.85 32.91
32.97
340
33.03
33.09
33.14
33. 20
33.26
33.32
33. 38 | 33. 43 | 33.49
33.55
350
33.61
33.67
33.72
33.78
33.84
33.90
33.95
34.01
34.07
34. 12
360
34. 18
34. 24
34.29
34, 35
34.41
34.46 34.52
34.58
34.63
34.69
370
34.75
34.80
34.86
34.92
34.97
35.03 35.08
35. 14
35.20
35.25
380
35. 31
35.36
35. 42
35.47
35. 53
35. 59 | 35.64
35.70
35.75
35.81
390
35.86
35.92
35.97
36.03
36.08
36. 14
36. 19
36.25 36.30
36.36
400
36.41
36. 47
36.52
36. 57
36.63
36.68
410 36.95
37.01
37.06
37. 12
37. 17
37.17
37.22
420
430 38.03 38.08
440 38.55 38.61
37.49 37.55
37.60
37.65
37.71
37.76
38. 13
38. 18
38.24
38.66
38.71
38.76
38.87
36.74
37.28 37.33 37.39 37.44
37.81
38.29 38.34
38.82
36.79 36.85
36.90
37.87 37.92
37.97
38.40 38.45
38.50
38.92 38.97
39.03
450 39.08 39. 13
39. 18
39.23
39.29 39.34
39.39
39. 44
39.44
39. 49
39.54
460
39.60
39.65
39.70
39.75 39.80 39.85
39.91
39.96
40.01
40.06
470
40. 11
40. 16
40. 21
40.26
40.32 40.37
40.42 |
40. 47
40.52
40.57
480
40.62
40.67
40.72
40.77
40.82
40.87
40.92
40.97
41.03
41.08
490
41. 13
41. 18
41.23
41, 28
41.33
41.38
41. 43
41.48
41.53
41.58
HYDRAULIC TABLES
311
Table 20.-Three-fifths powers of numbers—Continued


Number
0
1
2
3
4
5
6
8
500
41.63
41.68 41.73 41.78
41.83
41.88
41.93
41.98
42.03
42.08
510
42. 13
42.17
42.22 42.27 42.32
42.37
42.42
42. 47
42.52
42.57
520
42.62
42.67
42.72
42.77
42.82 42.86
42.91
42.96 43.01
43.06
530
43.11 43.16
43. 21
43.26
43.30 43.35
43.40 43.45 43.50
43.55
540 43.59 43.64
43.69
43.74
43.79
43.84
43.88 43.93 43.98
44.03
550 44.08
560 44.56 44.60
570 45.03 45.08
44.13
44.17
44.22
44. 27
44.32
44.37
44.41 44.46
44.51
44.65
44.70
44.75
44.79
44.84 44.89 44.94
44.98
45. 13
45. 17
45.22
45.27
45.32
45.36 45.41
45.46
580 45.50 45.55
45.60
45.65
45.69
45.74 45.79 45.83 45.88
45.93
590
45.97 46.02
46.07
46. 11
46.16
46.21
46.25 46.30
46.35
46.39
600 46.44 46.49
610 46.90 46.95 46.99
620 47.36 47.41 47.45 47.50
630 47.82 47.86 47.91 47.96 48.00
640 48.27 48.32 48.36 48.41 48.45
46.53
46.58
46.63
46.67
46.72
46.76 46.81
46.86
47.04 47.09
47.13
47.18
47.22 47.27
47.32
47.55
47.59
47.64
47.68
47.73
47.77
48.05
48.09
48. 14
48.18
48.23
48.50 48.54
48.59
48.63
48.68
650
48.72 48.77 48.81
48.86
48.90
48.95
48.99
49.04
49.08
49. 13
660
49. 17 49.22
49.26
49.31
49.35 49.40
49.44
49.49
49.53
49.57
670
49.62 | 49.66
49.71
49.75 49.80 49.84
49.88
49.93
49.97
50.02
680
50.06 50.11
50. 15
690
50.50 50.55
50.59
50.63
50.19 50.24
50.68
50.28
50.33
50. 37
50.37
50.41
50.46
50.72
50.77
50.81
50.85
50.90
700
710
50.94 50.98
51.38 51.42 51.46
51.03
51.07 51. 11
51.16 51.20
51.25
51.29 51.33
720 51.81
740
51.85 51.89
730 52.24 52.28 52.32
52.67 52.71 52.75
51.51 51.55
51.94 51.98 52.02
52.37
51.59 51.64
51.68
51.72
51.77
52.07
52. 11
52.15
52.20
52.41 52.45
52.50
52.54
52.58
52.62
52.80 52.84
52.88
52.92
52.97 53.01
53.05
750 53.09 53.14 53.18
760 53.52 53.56 53.60
770 53.94 53.98 54.02
780 54.36 54.40 54.44
53.22
53.26
53.31
53.35
53.39 53.43
53.47
53.64
53.69
53.73
53.77
53.81
53.85
53.90
54.06
54. 11
54. 15
54. 19
54.23 54.27
54.32
54. 48
54.52
54.57
54.61
54.65 54.69
54. 73
790 54.77
54.82 54.86
54.90
54.94
54.98
55.02
55.06 55.11
55. 15
800
55. 19
55.23 55.27
55.31
55.35
55.40 55.44
55.48 55.52
55.56
810
55. 60
820
56.01
55.64 55.68 55.73
56.05
830 56.42 56.46 56.50
55.77
55.81
55.85 55.89 55.93
55.97
56.09
56.14
56. 18
56.22 56.26 56.30 56.34
56.38
56.54
56.58
56.63
56.67 56.71 56.75
56.79
840 56.83 56.87 56.91 56.95
56.99
57.03
57.07 57.11 57.15
57.19
850 57.23 57.27 57.31 57.35
57.40
57.44
57.48 57.52 57.56
57.60
860 57.64 57.68
57.72 57.76
57.80
57.84
57.88 57.92 57.96
58.00
870
58.04 | 58.08
880 58.44 58.48
58.12 58.16
58.20
58.24
58.28 58.32 58.36
58.40
58.52 58.56
58.60
58.64
58.68 58.72 | 58.76
58.80
890
58.83 58.87 58.91 58.95
58.99
59.03
59.07 59.11 59.15
59. 19
900 59.23 59.27 59.31 59.35
59.39
59.43
59.47 59.51
59.55
59.59
910 59.62 59.66
59.70
59.74
59.78
59.82
59.86 59.90
59.94
59.98
920 60.02 60.06
60. 10
60.13
60. 17
60. 21
60.25
60.29 60.33
60.37
930 60.41 60.45
940 60.80 60.84
60.49
60.52 | 60.56
60.60
60.64
60.68
60.72
60. 76
60.87 60.91 60.95
60.99
61.03
61.07 61. 11
61. 14
950 61.18 61. 22
960 61.57 61.61
970 61.95 61.99
980 62.34 62.37
61.26 61.30 61.34
61.65 61.68 | 61.72
62.03 62.07 | 62.11
62.41 62.45 62.49
61.38
61.42 61.45 61.49
61.53
61.76
61.80 61.84 61.88
61.91
62. 14
62.18 62.22
62.26
62.30
62.53
62.56 62.60
62. 64
62.68
990 62.72 62.75
63.06
62.79 62.83 62.87
63.02
62.91
62.98
62.94
312
HYDRAULIC TABLES
Table 21.*—Values of c‚ for use in the formula for normal
depth in channels of infinite width, Dn=cnq³/5
(q=discharge per foot of width)



23
n
.010
.011
.012
.013
.014
.015
.0175
.020
$
.00001
1.573
1.666
1.755
1.841
1.925
2.007 2.201
2.385
.00002
1.278
1.353
1.426
1.496
1.564
1.630 1.788
1.937
.00003
1. 131
1.198
1.262
1. 324
1.385
1.443
1.583
1.715
.00004
1.038
1.099
1. 158
1. 215
1.270
1.324
1.452
1.573
00005
•
.9707
1.028
1.083
1. 136
1. 188
1.238
1.358
1.471
00006
.9191
.9731
1.025
1,076
1. 125
1. 172
1.286
1.393
00007
.8775
•
.9292
.9790
1. 027
1.074
1. 119
1. 228
1.330
00008
.8431
.8927
.9405
.9868
1,032
1.075
1. 179
.00009
1. 278
.8138 .8617
.9079
.9525
.9958
1.038
1. 139
1. 233
.0001
.7885
.8349
.8796
.9229
9649
1.006
·
1. 103
1. 195
0002
.6404
.6781
.7145
.7496
.7837
.8168
.8960
.9707
0003
.5671
.6005
.6326
.6638
.6940
.7233
.7934
.8595
0004
.5202
.5508 .5803
.6089
.6366 .6635
.7278
.7885
0005
.4865
.5152
.5428
.5695
.5954
.6205
.6807
.7374
.0006
.4606
.4877
.5139
.5391
.5637
.5875
.6444
.6982
.0007 .4398 .4657
.4906
.5148
.5382 .5609
.6153
.6666
.0008 .4225 .4474
.4714
.4946
.5171 .5389
.5911
.6404
0009
.4079 .4319
4550
4774
.4991
.5202 .5706
.6182
001
.3952
.4184
.4409
.4625
.4836
.5040
.5529
.5990
002
.3210
.3399
.3581
.3757
.3928
.4094 .4491
.4865
.003
.2842
.3009
.3171
.3327
.3478
.3625 .3976
.4308
.004
.2607
. 2761
.2909
.3052
.3190
.3325
.3647
.3952
.005
.2438
.2582
.2720
.2854
.2984
.3110
.3411
.3696
.006 .2309
.2444
.2575
.2702
.2825
.2944
.3230
.3499
.007 .2204 .2334
2459
•
.2580
.2697
.2811 .3084
.3341
.008
.2118
.2242
2362
•
.2479
.2591
2701
•
2963
.3210
.009
.2044 .2164
2280
2393
•
2501
.2607
.2860
.3098
01
.1981
.2097
.2210
.2318
.2424
.2526
.2771
.3002
02
.1609
.1703
.1795
.1883
.1969
.2052
.2251
.2438
03
.1424
.1508
1589
.1667
. 1743
. 1817
.1993
.2159
.04
. 1307
. 1384
.1458
.1529
.1599
.1667
.1828
· 05
.1981
.1222
. 1294
.1363
.1430
. 1495
.1559
. 1710
.1852
06
.1157
.1225
.1291
.1354
. 1416
.1476
.1619
.1754
07
. 1105
.1170
. 1232
1293
.1352
•
1409
.1546
1674
.08
•
.1061
.1124
. 1184
.1242
.1299
1354
.1485
09
.1025
. 1085
.1143
. 1199
.1254
. 1307
.1433
.1609
.1553
.0993
.1051
. 1107
1162
. 1215
.1266
વા
.1389
1505
.0806
.0854
.0899
.0944
.0987
.1028
.1128
. 1222
.0714
.0756
.0796
.0836
.0874
.0911 .0999
. 1082
.4
.0655 .0693
.0731
.0767
.0801
.0835 .0916
.0993
5
.0612
.0649
.0683
.0717
.0750 .0781 .0857
.0928
6 .0580 .0614
7
.9
.0513
.0554
.8 .0532 .0563 .0593
.0647
.0679
.0710
.0740
.0811 .0879
.0586 .0618
.0648
.0678
0623
.0651
.0544 .0573
.0601
.0678 .0744 .0806
.0628 .0655 .0718 .0778
.0706 .0775 .0839
*For notes on Table 21, see preface.
HYDRAULIC TABLES
313
Table 21.-Values of cn for use in the formula for normal
depth in channels of infinite width, D„= c,q³/5—Continued
n


co
n
.0225
.025
.0275
.030
.035
.040
.045
.050
00001
2. 559
2.726
2.887
3.041
3.336
3.614
3.879
4. 132
.00002
2.079
2. 214
2. 345
2.470
2.710
2.936
3. 151
3.356
.00003
1.841
1.961
2.076
2. 187
2.399
2.599
2. 790
2.972
.00004
1.688
1.799
1.904
2.007
2. 201
2. 385
2.559
2.726
00005
1.579
•
1.682
1.781
1.877
2.058
2. 230
2.393
2.550
00006
1.495
1.593
1.686
1.777
1.949
2. 111
2.266
.2.414
.00007 1.427
1.521
1.610
1.696
1.861
2.016
2. 164
2,305
.00008 1.371
1. 461
1.547
1.630
1.788
1.937
2.079
2. 214
.00009
1.324
1.410
1.493
1.573
1.726
1.870
2.007
2.137
0001
•
1. 283
1.366
1.447
1. 524
1.672
1.811
1.944
2.071
.0002
1.042
1. 110
1. 175
1. 238
1.358
1.471
1.579
1.682
.0003
.9225
.9827
1.041
1.096
1,203
1.303
1.398
1.489
0004
•
8462
9014
.9545
1.006
1.103
1. 195
1.283
1.366
0005
.7914
.8431
.8928
.9405
1.032
1. 118
1.200
1.278
0006
.7493
.7982
.8452
.8905.
.9768
1.058
1. 136
1.210
.0007
.7154
.7621
.8070
.8502
.9326
1.010
1.084
1.155
.0008
.6873
.7322
.7753
.8168
.8960
.9707
1.042
· 1.110
.0009
.6635
.7068
.7484
.7885
.8649
.9370
1.006
1.071
.001
.6428
.6848
.7251
.7639
.8380
.9079 .9744
1.038
.002
5221
5562
.5890
•
.6205
.6806 .7374
.7914
.8431
•
.003 .4623
4925
.5215
•
5494
•
.6027 .6530
.7008
7465
•
.004
4241
.4518
.4784
.5040
.5529 .5990
.6428
.6848
.005
.3967
.4225
.4474
.4714
.5171
.5602
.6012
6404
.006
.3755
.4000
.4236 .4463
.4895
.5304
.5692
.6064
.007
.3586
.3820
.4044
.4261
.4674
.5064 ..5435
.008
.5790
.3445
.3670
.3886
.4094
.4491
.4865
.5221
. 5562
.009
3325
•
.3542
.3751
.3952
.4335
.4696 .5040
.5369
•
01
02
.3222
3432
3634
3829
•
4200
•
•
.4550
.4883
.5202
•
.2788
: 2760
.2952
.3110
.3411 .3696
.3967
.4225
03
.2317
2468
.2614
.2754
.3021
3273
.3512
.3741
.04
.2126
.2264
2398
. 2526
.2771
.3002
.3222
.3432
.05
..1988
.2118
2242
.2362
.2591
.2808
.3013
.3210
.06
.1882
.2005
.2123
.2237 .2453 .2658
.2853
.3039
.07
1797
.1914
.2027
.2136 .2343
.2538 .2724
.2902
.08
. 1727
1839
.1947
.2052
.2251
.2438
.2616
.2788
.09
.1667
.1775
.1880
.1981
.2172
.2354
.2526
.2691
1
. 1615
.1720
.1821
. 1919
•
.2105
.2280
.2447
.2607
2
. 1312
.1397
.1479
.1559
.1710
. 1852
.1988
.2118
3
.1161
.1237
.1310
.1380
1514
.1640
.1760
.1875
4
.1065
. 1135
.1202 .1266
.1388
.1505
. 1615
.1720
.5 .0996
.1061
.1124
.1184
.1298
.1407
. 1510
.1609
.0943
1005
.1064
.1121
.1230
.1332
.1430
.1523
.0901
.0959
.1016
.1070
.1174
.1272
.1365
. 1454
.0865
.0922 .0976
.1028
.1127
.1222
.1312
•
.1397
9
.0835 .0890 .0942
.0993
.1088 .1180
. 1266
.1349
563189° -14- -21
314
HYDRAULIC TABLES
Table 21.-Values of Cn for use in the formula for normal
depth in channels of infinite width, D= cngs/5—Continued



n
.055
.060
.065
.070
.075
.100
.125
.150
.175
.00001
4.375
4. 610
4.837
5. 056
5.270
6. 263
7. 160
7.988
8.762
.00002 3. 554
3. 744
3.929
4. 107
4. 281
5. 087
5.816
6.488
7. 117
.00003
3. 147
3. 315
3.479
3.637
3.790
4.505
5.150
5. 745
6. 302
.00004
2.887
3.041
3. 191
3.336
3.477
4. 132
4. 724
5. 270
5.781
.00005
2.700
2.844
2.984
3. 120
3. 252
3.865
4. 418
4.929
5. 407
00006 2.556
2.693
2.825
2. 954
3.079
3. 659
4. 183
4.667
5. 119
00007
2.440
2.571
2.698
2.820
2.940
3.493
3.994
4. 456
4.887
00008
2. 345
2.470
2.592 2.710
2.824
3.356
3.837
4. 281
4.696
00009 | 2.263
2. 385
2.502
2.616
2.726
3. 240
3.704
4. 132
4. 533
.0001
2. 193
2.310
2. 424
2. 534
2. 641
3. 139
3.589
4.004
4. 391
.0002
1.781
1.877
1.969
2.058
2. 145
2.550
2.915
3. 252
3.567
.0003
1.577
1.662
1. 743
1.823
1.900
2.258
2.581
2.879
3. 158
0004
1. 447
1.524
1. 599
1.672
1.743
2.071
2. 368
2. 641
.0005
1.353
1.426
1.496
1.564
1.630
1.937
2. 214
2.470
2.897
2.710
0006
1.281
1.350
1.416
1.480
1. 543
1.834
2.096
2. 339
2. 565
.0007
1. 223
1.289
1.352
1.414
1.473
1.751
2.002
2.233
2,450
0008
1. 175
1.238
•
1.299
1.358
1.415
1.682
1.923
2. 145
2. 353
0009
1. 134
1. 195
1. 254
1.311
1.366
1.624
1.856
2.071
2. 272
.001
1.099
1. 158
1. 215
1.270
1. 324
1.573
1.799
2.007
2. 201
.002
.8927
.9405
.9868
1.032
1.075
1.278
1.461
1.630
1.788
003
.7904
.8328
.8738
.9135
.9521
1. 131
1. 294
1.443
1.583
004 .7251 .7639
.8015
.8380
.8734
1.038
1. 187
1. 324
1. 452
005
006
.6781
.6420 .6764
.7145
7496
.7837
•
.8168
.9707
1.110
1.238
1. 358
.7097
.7420
7734
.9191
1.051
1.172
1.286
•
007 .6130 .6459
.6777 .7085
.7384
.8775
1.003
1. 119
1. 228
008 .5890 .6205
.6510 .6806
.7094
.8431
.9638
1.075
1. 179
009
.5685 .5990 .6284
.6570
.6848
.8138
.9304
1.038
1. 139
.01
.5508 .5803 .6089
.6366
.6635 .7885
.9014
1.006
1. 103
.02
.4475
.4714
.4946
.5171 .5389
.6404
.7322
.8168
.8960
03
.3962
.4174
.4379
.4578 .4772
.5671
.6483
.7233
.7934
04
3634
3829
•
4017 .4200 .4377
5202 .5947
.6635
.7278
05
. 3399
.3581
3757 .3928
.4094
.4865
.5562
.6205
.6806
08
.3218
.3390
.3557 .3719
.3876
.4606
.5266
.5875
6444
•
.07
.3072
.3237
.3396 .3551
.3701
.4398
.5028
.5609
.6153
.08
.2952
3110
·
3263
.3411
.3555
.4225
.4831
.5389
.5911
.09
.2849
.3002
.3150
.3293
.3432
.4079
.4663 .5202
.5706
1
.2761
.2909
.3052 .3190 .3325
.3952
.4518
.5040
.5529
2
.2242
.2362
.2479
2591
.2701
•
.3210
.3670
.4094
.4491
3
.1986
.2092
2195
2295
.2392
·
.2842
·
.3249
.3625
3976
4
.1821
. 1919
•
5
. 1703
. 1795
6
. 1613
.1540
.1699
.1622
•
8
.1479
9
.1428
. 1559
.1505
.2013
.1883
. 1783
1702
.1635
. 1579
.2105
.2194
.2607
.2981
.3325
.3647
. 1969
.2052
.2438
.2788
•
.3110
3411
.1864
. 1943
.2309
.2639
. 2944
.3230
1780
. 1855
•
.1710
. 1782
.2204
.2118
2520
.2811
·
.3084
.2421 .2701
. 2963
.1650
.1720
.2044
.2337
.2607
.2860
MANNING FORMULA TABLES
315
316
HYDRAULIC TABLES
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.010

8
.00005
00010 .00015
00015
00020 .00025 0030
.00020.00025.00030.00035.00040.00045.00050
0.2
0.36
0.51 0.62
0.72
0.80
0.88
0.95 1.02
1.08
1. 14
0.4
.57
.81
.99
1. 14
1.28
1.40
1.51
1.61
1.71
1.80
0.6
.75
1.06
1.29
1.49
1.67
1.83
1.98
2.11
2. 24
2.36
0.8
.91
1.28
1.57
1.81
2.02
2.22
2.40
2.56
2.72
2.86
1. 0
1.05
1.49
1.82
2. 10
2. 35
2.57
2.78
2.97
3. 15
3.32
1.2
1. 19
1.68
2.06
2. 37
2.65
2.91
3. 14
3.36
3.56
3.75
1. 4
1.31
1.86
2. 28
2. 63
2.94
3. 22
3.48
3.72
3.94
4. 16
1,6
1. 44
2,03
2.49
2.87
3. 21
3.52
3.80
4.07
4. 31
4.55
1.8
1.55
2.20
2.69
3. 11
3.48
3.81
4. 11
4.40
4.66
4.92
2.0
1.67
2.36
2.89
3.34
3.73
4.09
4. 41
4.72
5.00
5. 27
2.2 1.78
2.51 3.08
3.55
3.97
4. 35
4.70
5.03
5. 33
5.62
2.4
1.88
2.66
3.26
3.77
4. 21
4.61
4.98
5.33
5. 65
5.96
2.6 1.99
2.81
3.44
3.97
4. 44
4.87
5.26
5.62
5.96
6.28
2.8
2.09
2.95
3.62
4. 17
4.67
5. 11
5.52
5.90
6. 26
6. 60
3.0
2. 19
3.09
3.79
4.37
4.89
5.35
5.78
6. 18
6. 56
6.91
3.2
2. 28
3. 23
3.95
4.56
5. 10
5.59
6.04
6.45
6.85
7.22
3.4
2. 38
3.36
4. 12
4.75
5.31
5.82
6. 29
6.72
7.13
7.51
3.6
2.47
3.49
4. 27
4.94
5. 52
6.05
6.53
6.98
7.40
7.80
3.8
2.56
3. 62
4.43
5. 12
5.72
6. 27
6.77
7.24 7.68
8.09
4.0
2.65
3.74
4.59
5.30
5.92
6.49
7.01
7.49
7.94
8.37
4.2
2.74
3.87
4.74
5.47
6. 12
6.70
7.24
7.74
8. 21
8.65
4.4
2.82
3.99
4.89
5. 64
6. 31
6.91
7.46
7.98
8.46
8.92
4. 6
2.91
4. 11
5.03
5.81
6.50
7.12
7.69
8.22
8.72
9. 19
16 16 16 15 16
4.8
5.0
5.2
5.4
5.6
5.8
2.99
4. 23
5. 18
5.98
6.69
7.32
7.91 8.46
8.97
9.46
1248 ∞O
3.07
4. 35
5.32
6. 14
6.87 7.53 8.13
8.69
9.22
9.72
3. 15
4.46
5.46
6.31
7.05
7.73
8.34
8.92
9.46
9.97
3.23
4.57
5.60
6.47
7.23
7.92
8.56
9. 15
9.70
10.23
3.31
4.69 5.74
6.63
7.41
8.12
8.77
9.37
9.94
10.48
3.39 4.80 5.88
6.78
7.58
8. 31
8.97
9.59
10. 18
10.73
SHSSO
0246 00
6.0
3.47
4.91
6.01
6.94 7.76
8.50
9. 18
9.81
10.41
10.97
6.2
3.55
5.02
6. 14
7.09
7.93 8.69
9.38
10.03
10.64
11. 21
6.4
3.62
5.12
6. 27
7.24
8.10
8.87
9.58
10. 24
10.87
11.45
6.6
3.70
5. 23
6. 40
7.39
8. 27
9.06
9.78
10. 46
11.09
11.69
6.8
3.77
5.33
6. 53
7.54
8.43
9.24
9.98
10.67
11.31
11.93
7.0
3.85
5. 44
6.66
7.69
8.60
9.42
10. 17
10.88
11.54
12. 16
7.5
4.03
5.69
6.97 8.05
9.00 9.86
10.65
11.39
12.08
12.73
8.0
4.20
5.94
7.28 8.41
9.40
10.30
11. 12
11. 89
12.61
13. 29
8.5
4. 38
6. 19
7.58 8.75
9.79
10.72
11.58
12. 38
13. 13
13. 84
9.0
4.55
6.43
7.87
9.09
10. 17
11. 14
12.03
12.86
13.64
14.38
9.5
14.90
4.71
14. 14
6.67
13.33 8. 16
13. 33
9.43
12.47 10. 54 11.55
HYDRAULIC TABLES
317
Table 22.-Velocity of water, v, in feet per second, based on
.00055
1.486
n
Manning's formula v= 72/31/2
n=.010—Continued

.00060.00065.00070.00075 .00080.00085 .00090.00095 .00100
.00070.00075.00080.00085.00090.00095
0.2 1.19
1.24 1.30
1.34
1.39
1.44 1.48 1.52 1.57
1.61
0.4 1.89 1.98
2.06
2. 13
2. 21
2.28
2.35
2.42
2.49
2.55
0.6 2.48
2.59
2.70
2.80
2.90
2.99
3.08
3. 17
3.26
3.34
0.8
3.00
3.14
3. 26
3.39
3. 51
3.62
3.73
3.84
3.95
4. 05
1.0
3.48
3.64
3.79
3.93
4.07
4.20
4.33
4.46
4.58
4.70
1.2
3.94
4.11
4. 28
4. 44
4.60
4.75
4.89
5.03
5. 17
5. 31
1.4
4.36
4. 56
4.74
4.92
5.09
5. 26
5. 42
5. 58
5.73
5.88
1.6
4.77
4.98
5. 18
5.38
5. 57
5.75
5.93
6. 10
6. 27
6.43
1.8
5. 16
5.39
5. 61
5.82
6.02
6.22
6. 41
6.60
6.78
6.95
2.0
5. 53
5.78
6. 01
6. 24
6.46
6.67
6.88
7.08
7.27
7.46
2.2
5.89
6.16
6. 41
6.65
6.88
7.11
7.33
7.54 7.75
7.95
2.4
6.25
6. 52
6.79
7.05
7.29 7.53
7.77
7.99 8.21
8.42
2.6
6. 59
6.88
7.16
7.43 7.69
7.95
8.19
8.43
8.66
8.89
2.8
6.92
7.23
7.53 7.81
8.08
8.35
8.61
8.86
9.10
9.34
3.0
7.25
"*7.57
7.88
8.18
8.47 8.74
9.01
9.27
9.53
9.77
3.2
7.57
7.90
8. 23
8.54
8.84 9.13
9.41
9.68 9.95
10. 20
3.4
7.88
8.23
8.57
8.89 9.20
9.50 9.80
10.08
10.36
10.63
3.6
8. 19
8.55
8.90
9.23 9.56
9.87 | 10.18
10.47 10.76
11.04
1
3.8
8.49
8.86
9.23 9.57
9.91
10.23 10. 55
10.86 11.15
11.44
4.0
8.78
9.17
10.25
4.2
9.07 9.48
4. 4
9.36
9.77
10. 17
4.6
9.64
10.07
10.48
4.8
9.92
10.36 10.78
9.55 9.91
10.59 | 10.92 | 11. 23 | 11. 54
9.86 10.23 10.59 10.94 11.28 11.60 11.92
10.56 10.93 11.29 11.63
10.87 11.26 11.63 11.98
11.19 11.58 11.96 12.33
11.84
12.23
11.97 12.30
12.62
12.33 12.67
13.00
12.69 | 13.03
13.37
5.0
10.19 10.64 11.08 11.50
5.2 10.46 10.93 11.37 11.80
5.4 10.73 11.20
5.6 10.99 11.48
11.90 | 12. 29 | 12.67 13.04 | 13.39
13.74
12. 21
12.62
13.00 | 13.38 13.75
14.10
11.66
12.10
12. 53
12.94
13.33 13.72
14.10
14.46
11.95
12.40
12.83
13.25
13. 66
14.06
14. 44
14.82
5.8
11.25
11.75 12.23 12.69
13. 14
13. 57
13.99
14.39
14.79
15. 17
6.0
11.51
12.02 12.51
12.98
13.44
13.88
14.31
14.72 15. 12
15.52
6.2
11.76
12.28
12.79
13. 27
13.73
14. 18
14.62
15.05 15. 46
15.86
6.4
12.01
12.55
13.06
13. 55
14.03 | 14. 49 | 14.93
15.37 15.79
16. 20
6. 6
12. 26
12.81 13.33
13.83
6.8
12. 51
13.06
13.60
14. 11
14.32 14.79 15.24
14.61 15.09 15.55
15. 69 | 16. 12
16. 53
16.00
16. 44
16.87
7.0
12.75
13.32 13.86
7.5
13.35
13.95
14.52
8.0 13.94
14. 56
15. 15
15.73
14.39 14.89 15.38
15.06 15.59 16.10
16.28 16.81
15.85 | 16.31 | 16.76
17.20
16.60 | 17.08 17.55
18.00
17.33. 17.83
18.32
18.80
8.5 14.51
15.16
15. 78
16.37
16.95 | 17.51
18.04 18.57 19.08
19.57
9.0
15.08
15.75
16.39
17.01
17.61 18.19
18.75 | 19.29 | 19.82
20.33
9. 5
21.08
15.63
17.64 18.25 18.85 19.43 20.00 20.54
16.33 16.99
318
HYDRAULIC TABLES
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
N
n=.010—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
↑
0.2
1.61
1.97
2.27
2. 54
2.78
3.01
3. 21
3. 41
3.59
0.4
2.55
3.12
3.61
4.03
4.42
4.77
5. 10
5.41
5.70
0.6
3.34
4.09
4.73
5. 29
5.79
6.25
6.69
7.09
7.47
0.8
4.05
4.96
5.73
6.40
7.01
7.58
8. 10
8.59
9.06
1.0
1.2
1.4
1.6
1.8
OR46 OD
4.70
5.76
6.65
7.43
8. 14
8.79
9.40
9.97
10. 51
5. 31
6.50
7.50
8.39
9. 19
9.93
10.61
11.26
11.87
5.88
7.20
8.32
9.30
10. 19
11.00
11.76
12.48
13.15
6.43
7.87
9.09
10. 16
11. 13
12.03
12.86
13. 64
14.37
6.95
8.52
9.83
10.99
12. 04
13.01
13.91
14.75
15. 55
2.0
7.46
9. 14
10. 55
11.79
12.92
13.96
14.92
15.82
16.68
2.2
7.95
9.74
11. 24
12.57
13.77
14.87
15.90
16. 86
17.77
2.4
8.42
10. 32
11.91
13.32
14.59
15.76
16.85
17.87
18.84
2.6
8.89
10.88
12.57
14.05
15.39
16.62
17.77
18.85
19.87
2.8
9.34
11. 43
13.20
14.76
16. 17
17.46
18.67
19.80
20.87
3.0 9.77
11.97
13.82
15.46
16.93
18. 29
19.55
20.74 21.86
3.2
10.20 12.50
14.43
16. 13
17.67
19.09
20. 41
21.65
22.82
3.4 10.63
13.01
15.03
16.80
18.40
19.88
21. 25
22.54
23.76
3.6
11.04
13.52
15.61
17.45
19. 12
20.65
22.08
23.41
24.68
3.8
11. 44
14.01
16. 18
18.09
19.82
21.41
22.89
24. 27
25.59
4.0
11.84
14.50
16.75
18.72
20.51
22.15
23.68
25. 12
26.48
4.2
12.23
14. 98
17.30
19.34
21. 19
22.89
24. 47
25.95
27.35
4.4
12.62
15.45
17.84
19.95
21.85
23.61
25. 24
26.77
28. 21
4.6
13.00
15.92
18.38
20.55
22.51
24. 32
25.99
27.57
29.06
4.8
13.37
16.38
18.91
21. 14
23. 16
25.02
26. 74
28.37
29.90
5.0
13.74
16.83
19.43
21.73
23.80
25. 71
27.48
29.15
30.72
5.2
14. 10
17.27
19.95
22.30
24.43
26.39
28. 21
29.92
31.54
5.4
14.46
17.71 20.45 22.87
25.05
27.06
28.93
30.68
32.34
5.6
14.82
18.15
20.96 23.43
25.67
27.72
29.64
31. 44
33. 14
5.8
15. 17
18.58
21.45
23.99
26. 27
28.38
30.34
32. 18
33.92
6.0
15. 52
19.00
21.94
24.53
26.87
29.03
31.03
32.91
34.70
6.2
15.86
19. 42
22.43
25.08
27.47
29.67 31.72
33.64
35.46
6.4
16. 20
19.84
22.91
25. 61
28.06
30.30 32.40
34.36
36.22
6.6
16.53
20.25
23.38
26. 14
28.64
30.93 33.07
35.07
36.97
6.8 16.87
20.66 23.85
26.67
29.21
31.55
33.73
35.78
37.71
7.0 17.20 21.06
24.32
27. 19
29.78
32. 17
34.39
36.48
38.45
7.5 18.00 22.05
25.46
28.47
31.19
33.68
36.01
38. 19
40.26
8.0
18.80
23.02
26.58
29.72
32.56
35. 17
37.59
39.87
42.03
8.5
19. 57
23.97 27.68
30.95
33.90
36.62
39. 14
41.52
43.76
9.0
20.33
24.90 28.75 32. 15
35. 22
38.04
40.66
43. 13
45.46
9.5
47.13
21.08
44.71
25.82 29.81
42. 16
33.33
39.43
36. 51
HYDRAULIC TABLES
319
་
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.010—Continued



8
.0055
.0060
.0065 .0070
.0075 .0080 .0085 .0090 .0095 .0100
0.2 3.77
3.94
4.10
4. 25
4. 40
0.4
5.98
6. 25
6.50
6.75
6.99
4.55
7.22 7.44
4.69 4.82 4.95 5.08
7.65 7.86
8.07
0.6
7.84
8. 19
8.52
8.84 9.15
9.46
9.75
10.03❘ 10.30
10.57
0.8
9.50
9.92 | 10.32 | 10.71
11.09
11.45
11.81
12.15 12.48
12.81
1.0
11.02
11. 51
11.98
12.43 | 12.87
13. 29
13.70
14. 10
14.48
14.86
1.2
12. 44
13.00
13. 53
14.04 14.53
15.01
15.47
15.92
16.36
16.78
1.4
13.79
14.40
14.99
15.56
16. 11
16.63
17.15
17.64
18. 13
18.60
1.6
15.08
15.75 16.39 17.01
17.60
18. 18
18.74
19.29
19.81
20.33
1.8
16. 31
17.03
17.73
18.40
19.04
19. 67
20.27
20.86
21.43
21.99
2.0
17.49
18. 27
19.02
19.74❘ 20.43
21.10
21.75
22.38
22.99
23.59
2.2
18. 64
19. 47
20.27
21.03 21.77 22.48
23. 17
23.85
24.50
25.14
2.4
19.75
20.63❘ 21.48 |
2.6
20.84
2.8
21.89
22. 29 | 23.07❘
21.76 22.65❘ 23. 51
22.87 23.80 24.70 | 25.57
23.83
24. 56
25. 27
25.96
26. 64
24. 33
25. 13
25.90
26.66
27.39
28.10
26.40
27.22
28.01
28.77
29.52
3.0
22.92 23.94
3.2 23.93
24.92
25.00 26.02
25.86 | 26.77
27.65
28.50
29.32
30. 13
30.91
27.00 | 27.95
28.86
29.75
30.61
31.45
32.27
3.4 24.92
3.6 25.89
3.8 26.84
26.03 27.09 28.11 29.10
27.04 | 28.14 | 29. 20 | 30.23
28.03 29.17 30.28 31.34
30.05
30.98
31.88
32.75
33.60
31. 22
32. 18
33. 11
34.02
34.90
32.37
33.36
34. 33
35. 27
36. 19
4.0 27.77
4.2 28.69
4.4
4.6
29.59
30.48
29.00 30.19 | 31.33 32.43
29.96 31.19 32.36 33.50
30.91 32.17 33.38 34.56
31.84 33.14 | 34. 39 | 35.59 36.76 37.89
33.49
34.52
35.52 36.50
37.44
34.60 35.66
36.70
37.70
38.68
35.69
36.79
37.85
38.89
39.90
38.99
40.06
41. 10
4.8 31.36
32.75
34.09 | 35.38
36.62 | 37.82 | 38.98
40. 11
41. 21
42.28
5.0
32. 22
33.66
35.03❘ 36.35
36.35 37.63
38.86
40.06
41.22
42.35
43. 45
5.2
33.08
34.55
35.96 | 37.32 | 38.63
39.89
41. 12
42.31
43. 47
44.60
5.4
33.92
35. 43
36.88
38.27 39.61
40.91
42.17
43.39
44. 58
45.74
5.6 34.75
36.30
37.78
39. 21
40.58
41.91
43. 20
44. 46
45. 67
46.86
5.8 35.58
37.16 38.67
40. 13
41.54
42.91 44. 23
45. 51
46.76
47.97
6.0 36.39
38.01 39.56
41.05
42.49
43.89 | 45. 24
46.55
47.82
49.07
6.2
37.19
38.85 40.43
41.96
43.43
44.86
46.24
47.58
48.88
50.15
6.4
37.99 39.68
41.30
42.86
44. 36
45.82
47.23
48.60 49.93
51. 22
6.6 38.78 40.50
42. 15
43.75 | 45. 28
46. 77
48.20
49.60
50.96
52.29
6.8 39.56
41.31
43.00
44.62
46. 19
47.71
49. 17
50.60
51.99
53.34
7.0
40.33
42.12
43.84 | 45. 50 | 47.09
48.64
50.13
51.59
53.00
54. 38
7.5
42. 23
44. 10
45.90 47.64 | 49.31
50.93
52.49 54.01
55. 50
56.94
8.0
44.08
46.04 | 47.92 | 49.73
51. 48
53. 16
54.80 | 56.39
57.93
59.44
9.0
8.5 45.90
47.68
47.94 49.90 51.78
49.80 51.84
53.60
53.79 55.68
55.36
57.06 58.72
57.51 59.28
60.32 61.89
61.00
62.67
64.30
9.5
66.66
49.43 51.63 53.74
63.23 64.97
55.77 57.73 59.62 | 61.45
320
HYDRAULIC TABLES
Table 22.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.010—Continued

.01
.02
.03 .04 .05
.06 .07 .08
.09
.10
0.2
5.08
7.19
8.80
10. 16
11.36
12.45 13.45
14.37
15.25
16.07
0.4
8.07
11. 41
13.97
16. 13
18.04
19.76 21.34
22.82
24. 20
25.51
0.6 10.57
14.95
18.31
21. 14
23.64
25.89
27.97
29.90 31.71
33.43
0.8
12.81
18.11
22.18
25.61
28.63
31.37
33.88
36.22 | 38.42
40.50
1.0
14.86
21.02 25.74
29.72
33.23 36.40
39.32
42.03 44.58
46.99
1.2
16. 78
23.73 | 29.06
1.4
18.60
26.30
32.21
33.56 37.52
37.19
41.10 44.40
47.46 50.34
53.06
41.58 45.55
49.20
52.60 55.79
58.81
1.6
20.33
28.75
35. 21
40.66
45.46
49.79
53.78
57.50
60.98
64.28
1.8
21.99
31.10
38.09 | 43.98
49.17 53.86
58.18
62. 19
65.97
69.53
2.0
23.59
33.36
40.86 47.18
52.75
57.78
62.41
66.72
70.77
74.59
2.2
25.14
35.55
43.54 | 50.27
56.21
61.57
66.50
71. 10 75.41
79.49
2.4 26.64
37.67
46.14 | 53.27
59.56
65.25
70.48
75.34 | 79.91
84.24
2.6
28.10
39.74 48.67 56.20
62.83
68.82
74.34
79.47 84.29
88.85
2.8
29.52
41.75
51.13 59.04
66.01
72.31
78.10
83.50
88.56
93.35
3.0
30.91
43.71 53.54 61.82
69.12
75.71
81.78 87.43 92.73
97.75
3.2
32.27
45.64 55.89 64.54
72.16
79.04 85.38 91.27 96.81
102.04
3.4
33.60
47.52 58.20
67.20
75. 13
82.30 88.90 95.03 100.80
106.25
3.6
34.90
49.36 60.46
69.81
78.05
85.50
92.35 98.73 104.71
110.38
3.8
36. 19
51.17 | 62.68
72.37
80.91
88.64
95.74 102.35 108.56
114.43
4.0 37.44
52.96 64.86 74.89
83.73
91.72
99.07 105.91 112.33
118.41
4.2 38.68
54.71 67.00 77.37
86.50
94.75 102.35 109. 41 116.05
122.33
4.4 39.90
56.43
4.8
4.6 41.10 58.13
42.28 59.80
69.11 | 79.80
71. 19 82.20
73.24 84.57
89.22
97.74 105.57 112.86 119.70
91.91 100.68 108.74 116.25 123.30
94.55 103.58 111.87 119.60 126.85
126.18
129.97
133.71
5.8
47.97
5.0 43.45 61.45 75.26 | 86.90 97.16 106.43 114.96 122.90 130. 35
5.2 44.60 63.08 77.25 89.20 | 99.73 109.25 118.01 126. 15
5.4 45.74 64.68 79.22 91.48102.27 112.04 121.01 129. 37
5.6 46.86 66.27 81.17 93.72 104.78 114.79 123.98 132. 54
67.84 83.09 | 95.94107.26 117.50 126.92 135. 68
137.40
133.81
141.04
137.22
144, 64
140.58
148. 19
143.91
151.69
6.0
49.07
69.39 84.99 98. 13
6.2
50. 15
6.4
51.22
6.6 52.29
6.8 53.34
98.13109.72 120.19 129.82 138. 78
70.92 86.86 100.30 112. 14 122.84 132. 69 |141.85 150.45
72.44 88.72 102.45 114.54 125.47 135.53 144.88 153.67
73.94 90.56 104, 57 116.91 128.07 138.33 147.89 156.86
75.43 92.38 106.67 119. 26 130.65 141.12 150.86 160. 01
147.20
155. 16
158.59
161.98
165.34
168.66
7.0
54.38
76.90
7.5
56.94
8.0 59.44
8.5
61.89
9.0 64.30
94. 18108.75 121. 59
80.52 98.62 113.87 127.31
84.06 102.95 118. 88 132. 91
87.53 107.20 123.78 |138. 39
90.93 111.36 128. 59 143.77
133.20 143.87 153.80 163. 13
139.47 150.64 161.04 170.81
145. 60 157.26 168. 12178.32
|151. 60 |163.75 |175.06 185.67
157.49 170. 11 181.86 192.89
171.96
180.05
187.97
195.72
203.32
9.5
210.78
66.66
94.26 115.45 133. 31 149.05 163. 27 176.35 188. 53 199.97
HYDRAULIC TABLES
321
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 72/31/2
n
n=.010—Continued


.00005
r
.00010.00015 | .00020 | .00025 | .00030 | .00035 | .00040 | .00045 | .00050
00:20
10
4.88
6.90
8. 45
9.75
10.91
11.95
12.90 13. 79
14. 63
15.42
11
5.20
7.35
9.00
10. 39
11. 62
12.73
13.75
14. 70
15. 59
16. 43
12
5.51
7.79
9.54
11.02
12.32
13.49
14. 57
15. 58
16.52
17.42
13
5.81
8.22 10.06
11.62
12.99
14.23
15.37
16. 43
17.43
18.37
14
6. 10
8.63
10.57
12. 21
13.65
14.95
16. 15
17. 26
18. 31
19.30
15
6.39
9.04
11.07
12.78
14.29
15. 65
16.91
18.08
19. 17
20. 21
16
6. 67
9.44
11.56
13. 34
14.92
16.34
17.65
18.87
20.02
21. 10
17
6.95
9.82
12.03
13.89
15.53
17.02
18. 38
19.65
20.84
21.97
18
7.22
10. 21
12.50
14. 43
16. 14
17.68
19.09
20.41
21.65
22.82
19
7.48
10.58
12.96
14.96
16.73
18.33
19.79
21. 16
22.45
23.66
2222 OL
20 7.74
10.95
13.41
15. 48
17. 31
18.96
20.48
21.90
23. 23
24.48
21 8.00
11.31 13.85
16.00
17.88
19.59
21. 16
22.62
23.99
25. 29
22 8.25 11.67 14.29
16.50 18.45
20. 21
21.83
23.33
24.75
26.09
23
8.50 12.02
14.72
17.00
19.00
20.82
22.48
24.04
25.49
26.87
24 8.74
12.36
15. 14
17.49
19.55 | 21. 42
23. 13
24.73
26. 23
27.65
31
37
46
48
BRAKR A**** ***88 24331 495447 8
25
8.98
12. 71
15. 56
17.97
20.09 22.01
23.77 ·
25. 41
26.95
28.41
26
9.22
13.04
15.97
18. 44
20..62
22.59
24. 40
26.08
27.67
29. 16
27
9.46
13.37
16.38
18.91
21. 15
23. 16
25.02
26.75
28.37
29.91
28
9.69 13.70
16.78
19.38
21. 67
23.73
25.63
27.40 29.07
30.64
29
9.92 14.03 17.18
19.84
22.18 | 24. 29
26. 24
28.05
29.75
31.36
30
10. 14
14.35
17.57
20. 29
22.68
24.85 26.84
28.69
30.43
32.08
10.37
14.66
17.96:20.74
23. 19
25.40
27.43
29.33
31. 11
32.79
32
10. 59
14.98
18.34
21. 18
23.68
25.94 28.02
29.96
31. 77
33.49
33
10.81
15. 29
18.72
21.62
24. 17
26.48
28.60
30.58
32. 43
34. 19
34 11.03
35
15.60
19.10 22.06
24.66
27.01
29.18
31. 19
33.08
34.87
11. 24
15.90
19. 47
22.49
25. 14
27.54
29.75
31.80.33.73
35.55
36
11. 46
16.20
19. 84 22.91
25.62
28.06
30.31
32.40 34.37
36. 23
11. 67
16.50
20. 21
23.33
26.09
28.58 30.87
33.00 35.00
36.90
38
11.88
16.80
20.57
23.75
26.56
29.09 31.42
33.59
35.63
37.56
39 12.08
17.09
20.93
24. 17
27.02
29.60
31.97
34. 18
36.25
38. 21
40
12. 29
17.38
21. 29
24.58
27.48
30. 10
32.52
34.76
36.87
38.86
12.49
12.70
17.67
21. 64
24.99
27.94
30.60
33.06
35. 34
37.48
39. 51
17.95
21.99
25.39
28.39
31. 10
33. 59
35.91
38.09
40. 15
12.90
18. 24
22. 34
25.79
28.84
31.59
34. 12
36.48
38.69
40.78
44
13. 10
18. 52
22.68
26. 19
29.28
32. 08
34.65
37.04
39.29
41. 41
13.29
18.80 23.03
26.59 29.73
32. 56
35. 17
37.60
39.88
42.04
13.49
19.08
23.37
26.98
30.16
33.04
35.69
38. 16
40.47
42.66
13.68 19. 35
23. 70
27.37
30.60
33. 52
36.21
38.71
41.05
43. 27
13.88
19. 63
24.04
27.76
31.03
33.99
36.72
39.25
41.63
43.89
14.07
19.90
24. 37 28. 14
31. 46
34. 46
37.23
39.80
42. 21
44.49
50
14.26
20.17 24.70 28.52 31.89
34.93
37.73
40.34 42.78
45. 10
322
HYDRAULIC TABLES
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.010—Continued


.00055
.00060
.00065.00070.00075.00080.00085.00090.00095 .00100
|
21
23
24
25
26
27
28
29
PERRI BR=== 222** RRRRR
10
16.18
16.90
17.58
18. 25
18.89 19.51 20.11 20.69
21.26
21.81
11
17.24
18.00
12
18. 27
19.08
18. 74 19.45 20.13
19.86| 20. 61 21.33
20.79
21.43
22.05
22. 65
23. 24
22.03
22. 71
23. 37
24. 01
24. 63
14
13 19. 27
20.24
20.12❘ 20.95 | 21.74 | 22.50
21.14 22.01 22.84 23. 64
23. 24
23.95
24.65
25.32
25.98
24. 41
25. 17
25.90
26.61
27.30
15
21.20
22.14 23.04 23.91 24.75
25.56
26.35
27.11
27.86
28.58
18
22. 13
23.04
24.07 25.05
23.11 24.06 24.96
25.99 26.91
25.84
26. 69
27.51
28.31
29.08
29.84
27.79
28.64
29. 47
30.28
31.07
18
23.94
25.00
26.02
27.00 27.95
28.87
29.76
30.62
31.46
32. 28
19
24.81
25.92
26. 98
27.99 28.98
29.93
30.85
31.74
31. 74
32. 61
33.46
20 25. 68
26.53
26.82 27.91
28.97
29.98
30.97 31.92
32.85
33. 75
34.62
27.71
28.84
29.93
29.93
30. 98
30.98
31.99 32.98
33.93
34.86
35.77
27.36
28.58
29.75
30.87
31.95
33.00 | 34.02
35.00
35.96
36.89
28. 19.
29.44
30, 64
30.64
31.80
32.91
33.99 35.04
36.05 37.04
38.00
29.00
30.29
31.52
32.71
33.86
34.97
36.05
37.09 | 38.11
39. 10
29.80
31. 12 | 32. 39
33.61
34.79 35.94
37.04
38. 12❘ 39.16
40. 18
30.59
31.95 33.25 34.51
35.72 36.89
38.02
39. 13
39.13 | 40. 20
41. 24
31.36
32.76
34. 10 |
35. 38
36.63
37.83
38.99
40.12 | 41. 22
42.29
32. 13
33.56
34. 93
36.25
37.53
38.76
39.95
41. 11
42.23
43.33
32.90
34. 36
35.76
37.11 38.41 39.67 40.89
42.08 43. 23
44.36
30
33. 65
35. 14
36.58 37.96
39.29
40.58
41.83
43.04 | 44. 22
45.37
31
34.39
35.92
37.39
38.80
40. 16
41.48
42.75
43. 99
45. 20
46.37
41
43
46
47
48
*** ***** ***** *****
32 35. 13
36.69
38.19 39.63
41.02
42.36
43.67
44.93
46. 17
47.36
33
35.85
37.45
38.98 40.45
41.87
43. 24
44.57
45.87
47.12
48.35
34
36.58
38.20
39.76
39.76
41. 26
42.71
44. 11
45.47
46. 79
48.07
49.32
35
37.29 38.95 40.54 | 42.07
43.54
44.97
46.36
47.70 49.01
50.28
36
38.00 39.69 41.31 42.86
44. 37
45.82
47.23 48.60
49.94
51. 23
37
38.70
40.42
42.07 | 43.66
45. 19
46.67
48.11
49.50
50.86
52. 18
38
39.39
41. 14
42.82
44. 44
46.00
47.51 48.97
50.39
51.77
53. 11
39 40.08
41.86
43. 57
45. 21
46.80 48.34
49.82
51. 27
52.67
54.04
40
40.76
42.57
44. 31
45.98
47.60
49.16 50.67
52. 14
53.57
54.96
41.44
43.28
45.05
46.75
48.39 49.98
51.51
53. 01
54. 46
55.87
42
42.11 43.98
45.78
45.78
47.50
49.17
50.78
52.35
53.86
55. 34
56.78
42.77
44.68
46.50
48. 26
48. 26
49.95
51.59
53. 17
54.72
56. 22
57.68
44
43. 43
45.37
47. 22
49.00
50.72
52.38
54.00
55, 56
57.08
58.57
45
44.09
46.05 47.93 | 49.74
51.49
53.17
54.81
56. 40
57.95
59.45
44.74
46.73 48.64 50.47
52.25
53.96
55.62
57. 23
58.80
60.33
45. 39
47.41 49.34 51.20
53.00
54.74
56.42
58.06
59.65
61.20
46.03
48.08 50.04
51.93
53.75
55. 51
57.22 58.88
60.49 62.06
49 46.67
48. 74 50. 73
52. 65
54.49
56.28
58.01 59.69
61.33
62.92
50 47.30
63.78
49.40 51.42 53.36
62. 16
55. 23
60.50
57.04
58.80
HYDRAULIC TABLES
323
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.010—Continued

.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045 .0050
T
13
16
21
25
26
27
29
31
33
35
36
37
38
39
CIRIL 1-=-= 2222* *2E88 A=88* *8*88
10
21.81
26.71
30.85
34. 49
37.78
40.81
43.62
46. 27
48.77
11
23.24
28.47
32.87
36.75
40.26
43.48
46.48
49.30
51.97
12
24.63
30. 17
34.83
38.94
42.66
46.08
49.26
52.25
55.08
25.98
31.82
36.74 41.08
45.00
48.61
51.96
55. 11
58.09
14 27.30 33.43
38.60
43.16
47.28
51.07
54.59
57.90
61.04
15
28.58
35.00
40.42
45. 19
49.50
53.47
57.16
60.63
63.91
29.84
36.54
42.20
47. 18
51.68
55.82
59.68
63.30
66.72
17
31.07
38.05
43.94
49. 12
53.81
58.12
62.14
65.91
69.47
18 32.28 39.53 45.64
51.03
55.90
60.38 64.55
68.47
72.17
19 33.46
40.98 47.32
52.90
57.95
62.60
66.92
70.98
74.82
20 34.62
36.89
23
38.00
24
39. 10
42.41 48.97
35.77 43.81 50.58 56.55
45.19
46.55 53.75 60.09
47.89
54.74
59.97
64.77
69.25
73.45
77.42
61.95
66.92 71.54 75.88
79.98
52.18 58.34
63.90
69.02 73.79 78.27
82.50
65.83
71.10
76.01 80.62
84.98
55.29
61.82
67.72
73.15
78.20
82.94
87.43
40.18
49.21 56.82
63.53
69.59
75. 16
80.35
85.23
89.84
41.24 50.51
58.32
65. 21
71.43
77.16
82.48
87.49
92. 22
42.29
51.80
59.81
66.87
73.25
79. 12
84.58
89.72
94.57
43.33
53.07
61.28
68.51
75.05
81.06
86.66
91.92
96.89
44.36
54. 32
62.73
70.13
76.83
82.98
88.71 94.09
99.18
30
45.37
55. 57
64.16 71.74
78.58 84.88
90.74
96.24
101.45
46.37
56.79
65.58
73.32
80.32 86.75
92.74
98.37
103.69
32
47.36 58.01 66.98
74.89
82.04
88.61
94.73
100.48
105.91
48.35 59.21 68.37
76.44
83.74
90.45
96.69
102. 56
108. 11
34 49.32 60.40 69.75
77.98
85.42
92.27
98.64
104. 62
110.28
50.28 61.58 71.11 79.50
87.09
94.07
100. 56
106.66
112. 43
51.23
62.75 72.46
52. 18
63.90
73.79
53. 11
65.05
75. 11
81.01 88.74
82.50 90.37
83.98 92.00
95.85❘ 102. 47
108.68
114. 56
97.62
104. 36
110.69
116.67
99.37
106.23
112.67
118.77
54.04
66. 19
76.43
85.45
93.60
101. 10
108. 08
114.64
120.84
40
54.96
67.31
77.73
86.90 95.20
102.82
109. 92
116.59
122.90
41
55.87
68.43
79.02 88.34
96.78
104.53
111.75
118.53
124. 94
42
56.78
69. 54
80.30
89.77
98.34
106. 22
113.56
120.45
126.96
43
57.68
70.64
81.57
91. 19
99.90
107.90
115. 35
122.35
128.97
44
58. 57
71.73 82.83
92.60
101.44
109.57
117. 13
124.24
130.96
47
49592 8
59.45 72.81 84.08
94.00
102.97
111. 22
118.90
126.11
132.94
46
60.33 73.89 85.32
95.39 104.49
112.86
120.66
127.98 134.90
48
50
61.20 74.95 86.55
62.06 76.01 87.77
62.92 77.07 88.99
63.78 78.11 90. 19
96.77
106.00
114.49
122.40
129.82
136.85
98. 13
107.50
116. 11
124. 13
131.66
138.78
99.49
108.99
117.72
125.85
133.48
140.70
100.84 110.47 119.32
127.55 135. 29
142.61
324
HYDRAULIC TABLES
Table 22.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.010-Continued

.0055
.0060
0065 0070 0075 0080 0085
0090
0095
0100
•
•
10
51.15
53.43
55. 61
57.71
59.73 61.69 63,59
11
54.51
56.93
59.26
61.49
63.65
12
57.76
60.33
62.80
65. 17
67.45
65.74
69. 67
67.76
65.43
69. 73
67.23
.68.97
71.64 73.50
71.81 73.89
13
60.93)
63. 64
66.24
68.74
71.15] 73.48]
75.75 77.94
75.92 77.89
80.0882.16
14
64. 02
66.86
69.59
72.22
74.75 77.21
79.58 81.89
84.13 86.32
15
67.03
70.01
72.87 75.62
78.27 80.84
83.33
85.74
88. 09
90.38
16
18
20
2222 222**
69.98
73.09
76.07
17
72.86 76.10 79.21
78.94 81.71 84.39
82.20 85.08 87.87
86.99
89.51
91.97
94.36
90.58
93.21
95.76 98.25
75.69
79.06
82.29
19
78.47
81.96
85. 31
85.39 88.39 91.29
88.53 91.63 94.64 97.55 100. 38
94.10
96.83
99.48 102.06
103. 13 105. 81
24
81.20 84.81 88.27 91.61
21 83.88 87.61 91.19 94.63
86.53 90.37 94.06 97.61
23 89.13 93.09 96.89 100. 55
91.69 95.77 99.68 103.44
107.49 110. 80
110. 59
113.99
94.82 97.93| 100.94 103.87 106.72 109.49
97.96 101.17 104.28 107.30
101.04 104.35 107.57
104. 08
107.08
110.25| 113.11
110. 68
113. 72 116. 67
114. 01
117. 14] 120. 18
117.30
120. 51
123. 64
2222
LO COE
25
26
27
28
94. 22
96.72
99.18
101.62
98.41 102. 43
106.30
110.03
113.64
117. 14
120. 53
123.83]
127.05
101.02 105. 15
109. 11
112.94
116.65 120.24
123.72
127.11
130. 42
103.59 107.82
111.89
115.82
119.62 123. 30|
126. 88|
130. 35|
133. 74 ·
106. 14
110. 47
114. 64
118. 66
122.56
126: 33
129.99
133. 55
137.02
29
104. 02
108.65 113.09
117.35
121.47
125.46
129.32
133. 07
136. 71
140. 27
30 106.40
111.13 115. 67)
120. 04
124. 25
128. 33
132. 27
136. 11
139. 84
143.47
31
108.75
113.59 118. 23
122. 69
127.00
131.16
135: 20
139. 12|
142.93
146. 64
32 111.08
116. 02 120.76
125. 31
129. 71
133.97
138.09
142. 09
145. 99
149. 78
33
113.38
118.42 123.26 127.91
132.40
136. 74
140.95
145.04
149.01
152. 88
34
115.66
120.80 125.74 130. 48
135.06
139.49
143. 79
147.95
152. 01
155.96
35
117.92
123.16 128. 19
133. 03
137.70
142. 21
146. 59
150.84 154. 97
159.00
36
120. 15
125.50 130.62 135. 55
140.31
144.91
149.37
153. 70 157.91 162.01
37
122.37
127.81 133.03 138.05
142.90
147.58
38
124. 56
130. 10 135. 41
140. 53
145. 46
150. 23
39
126.74
132.37 137.78
142.98
148.00
152.85
152. 12 156. 53 160.82 165.00
154.85 159.34 163.71 167.96
157.56 162.12 166. 57 170.89
40
128.90
134. 63 140.12 145. 41
150. 52
41
131. 04
136.86 142.45 147.83 153.02
42
133. 16
43
135. 26
44
137.35
160.24 164.88 169.40 173.80
158.03 162.90 167.62 172.21 176. 69
139.08 144.76 150.22 155. 49 160. 59 165. 54 170.34 175.00 179. 55
141.28 147.05 152.60 157.95 163.13 168.15 173.03 177.77 182.39
143. 46 149.32 154.95 160.39 165.65 170.75 175.70 180. 52 185. 21
155. 45
45
139.43
145.62 151.57 157.29
162.81 168.15 173.33 178.35 183. 24
188.00
46
141.48
147.77 153.81 159. 61
165. 22 170.64
175.89 180.99
185. 95
190.78
47
143.53
149.91 156.03 161.92
167.60
173. 10
178.43] 183. 60
188. 63
193. 53
48
145. 56
152.03 158. 24| 164. 21,
169.97
175.55
180.95
186. 19
191.30) 196.27
49
147.57
154. 13 160.43 166. 48
172. 32
177.98
183. 45
188. 77
193.94 198. 98
50
156.22 162.60 168. 74 174. 66 180. 39 185, 94 191.33 196. 57 201.68
149.57
HYDRAULIC TABLES
325
Table 22.--Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.010—Continued

01
02
03
04 .05
06
07
08
09
10
36
PIRII 19222 22222 22222 A788* *808* ***** *****
68.97 97.54 119.47 137.95 154. 23| 168.95 182.49 195.09 206.92| 218.11
73.50 103.94 127.30 147.00 164.35 180.03| 194. 46 207.89| 220.50 232. 42
77.89 110.15 134.91 155.78 174.16 190.79 206.07 220.30 233.67 246.30
82.16 116. 19 142.30 164.32 183.71| 201.24| 217.37| 232.38| 246. 47 259.81
122.07 149.51 172.64 193. 01| 211.44 228.38 244. 15 258. 96 272.96
10
11
12
13
15
14 86.32
90.38
16 94.36
17
98.25
18 102. 06
105.81
127.82 156.55 180.76 202.10 221. 39 239. 13 255. 64
133.44 163.43] 188.71| 210.98 231.12 249.64 266.88
138.94 170.17 196.49 219.69) 240.65| 259.94| 277.88
144.34 176.78 204.13 228.22| 250.00 270.03| 288.68
149.64 183.27 211.62 236.60 259.18| 279.94| 299. 27
271. 14 285.81
283.07| 298.38
294.74 310.68
306. 19 322.75
317.43 334.60
20
109.49
21
23
24
113. 11
116.67
120. 18
123.64
154.84 189.64 218.98 244.83 268.19 289.68 309.68 328.47 346.24
159.96 195.91 226. 22 252.92 277.06] 299.26 319.92 339. 33 357.68
165.00 202.08 233.34 260.89 285.79 308. 69 330.00 350.02 368.95
169.96 208. 16 240. 36 268.73 294. 38 317.97 339.92 360, 54 380.05
174.85 214. 15 247.28 276.47 302.86 327.12| 349. 71| 370. 92 390.98
26
130.42
25 127.05 179.68 220.06| 254. 10| 284. 10 311.21
184.44 225.89 260.83 291.62 319.46 345.05 368.88
336.15 359. 36
381. 15
401.77
391.25 412. 41
27
28
133. 74
137.02
29
140.27
189.14 231.64 267.48 299.05
193.78 237.33 274.04 306. 39
198.37 242.95 280.53] 313. 64
327.59 353.84
378. 27
401.22 422.92
335.63
343, 58
362. 53
387.56 411.07 433. 30
371. 11
396. 73. 420. 80 443.56
30
143.47 202.90 248.50 286.94 320.81| 351.43 379. 59
405.80 430.42| 453. 70
31 146.64 207.38 253.99 293.29 327.90 359.20 387.98 414.77 439.93| 463, 72
149.78 211.82 259.43 299.56 334.92 366.88 396.28 423.64 449.34 473.64
216.21 264.80] 305.77| 341.86 374.49 404.49 432. 42
220.56 270.13 311.91 348. 73 382. 01 412. 62 441. 11
32
33 152.88
34 155.96
458.65 483.46
467.87 493. 18
477.00 502.80
512. 33
35 159.00 224.86 275. 40 318.00 355. 54 389.47 420.67 449. 72
162.01 229.12 280.62 324.03 362.28].396.85 428.65 458. 25 486.04
37 165.00 233.35 285.79 330.00 368.95 404.17 436.55 466.69 495.00 521. 78
38 167.96 237.53 290.92 335.92 375. 57 411.42 444.38 475.06
39 170.89 241.68 296.00 341.79 382. 13 418.60 452. 14 483. 36
503.88 531. 14
512.68 540. 42
40
41
42
173.80
176. 69
179.55
245.80 301.04 347.61
249.88 306.03 353. 38
253.92 310.99 359. 10
388.64 425.73 459.84 491.59
395.09 432.80 467.47
521. 41·549. 62
499. 75
530. 07 558.74
401.49
439.81
475. 04
507.84
538. 65
567.79
43 182.39 257.94 315.91 364. 78
407.83
446. 76
482. 55
515.87
547. 17
576.76
44
185.21
261.92 320.79 370. 41
414. 13
453. 66
490. 01
523. 84
555. 62
585. 67
45
188.00
265.87 325. 63
376.00
420.38
460.51
497. 40
531.75
564.00 594. 51
46
190. 78
269.80 330.43 381.55
426. 59
467. 30
504. 75
539.60
572. 33
603. 29
47
193.53
273.69 335. 21
387.06
432.75
474. 05|
512.04|
547.39
580.59 612.00
48
49
196. 27
198.98
277.56 339.94 392. 53
438. 87
480. 75
519. 27
555. 13
588.80 620.65
281.40 344. 65 397.97
444.94
487. 41
526. 46
562, 81
596.95 629. 24
50 201.68
285.22 349.32 403.36| 450.97 494.02 533.60 570.44 605.04 637.77
326
HYDRAULIC TABLES
Table 23.—Velocity of water, v, in feet per second, based on
00
8
.00005
1.486
n
Manning's formula v= r2/31/2
n=.011

.00010 .00015 .00020.00025.00030.00035.00040 | .00045 | .00050
|
T
0.2
0.33
0.46
0.57
0.65
0.73
0.80
0.86
0.92
0.98
1.03
0.4
.52
. 73
.90
1.04
1. 16
1.27
1.37
1.47
1.56
1.64
0.6
.68
.96
1. 18
1.36
1.52
1.66 1.80
1.92
2.04
2. 15
0.8
.82
1. 16
1.43
1.65
1.84
2.02 2.18
2.33
2.47
2.60
1.0
1.2
1.4
1.6
1.8
O2 - ∞ ∞
.96
1.35
1.65
1.91
2. 14
2.34
2.53
2.70
2.87
3.02
1.08
1.53
1.87
2. 16
2.41
2.64
2.85
3.05
3.24
3. 41
1.20
1.69
2.07
2.39
2.67
2.93
3. 16
3.38
3.59
3.78
1. 31
1.85
2. 26
2.61
2.92
3.20
3.46
3.70
3.92
4. 13
1. 41
2.00
2.45
2.83
3. 16
3.46
3.74
4.00
4. 24
4.47
2.0
1.52
2. 14
2.63
3.03
3.39
3.71
4.01
4. 29
4. 55
4.80
2.2
1.62
2. 29
2.80
3.23
3.61
3.96
4.28
4. 57
4.85
5.11
2.4 1.71
2.42
2.97
3.42
3.83
4. 19
4. 53
4.84
5. 14
5. 41
2.6
1.81
2.55
3. 13
3.61
4.04
4.42
4. 78
5. 11
5.42
5.71
2.8
1.90
2.68
3.29
3.80
4. 24
4.65
5. 02
5.37
5.69
6.00
3.0
1.99
2.81
3. 44
3.97
4. 44
4.87
5. 26
5.62
5.96
6.28
3.2
2.07
2.93
3.59
4. 15
4.64
5.08
5.49
5.87
6.22
6.56
3.4
2.16
3.05
3.74
4.32
4.83
5.29
5.71
6. 11
6. 48
6.83
3.6
2.24
3. 17
3.89
4.49 5.02
5.50
5.94
6.35
6.73
7.10
3.8
2. 33
3.29
4.03 4.65
5.20
5.70
6. 15
6.58
6.98
7.36
4.0 2.41
3.40
4. 17
4.81
5.38
5.90
6.37
6.81
7.22
7.61
4.2
2.49
3.52
4.31
4.97
5. 56
6.09 6.58
7.03
7.46
7.86
4.4 2.56
3.63
4.44
5. 13
5.74
6.28
6.79 7.25
7.69
8. 11
4.6
2.64
3. 74
4.58
5. 28
5.91
6.47 6.99
7.47
7.93
8.36
4.8
2.72
3.84
4.71
5. 44
6.08
6.66
7.19
7.69
8.15
8.60
5.0
2.79
3.95
4.84
5. 59
6.25
6.84
7.39 7.90
8.38
8.83
5.2 2.87
4.05
4.97
5.73
6.41
7.02
7.59 8.11
8.60
9.07
5.4 2.94
4.16
5.09
5.88
6.57
7.20 7.78
8.32
8.82
9.30
5.6
3.01
4. 26
5. 22
6.02
6.74
7.38 7.97
8.52 9.04
9.53
5.8
3.08
4.36
5. 34
6. 17
6.90
7.55
8.16
8.72
9.25
9.75
6.0
3. 15
4.46
5.46
6. 31
7.05
7.73
8.35
8.92 9.46
9.97
6.2
3. 22
4. 56
5.58
6.45
7.21
7.90
8.53
9.12 9.67
10. 19
6.4
3. 29
4.66
5.70
6.59
7.36 8.07
8.71
9.31
9.88
10.41
6.6
3.36
4.75 5.82
6.72
7.52 8.23
8.89
9. 51
10.08
10.63
6.8 3.43
4.85 5.94 6.86
7.67
8.40
9.07
9.70
10.29
10.84
7.0
3.50
4.94
6.05 6.99
7.82
8.56
9.25
9.89
10.49
11.05
7.5
3.66
5. 18
6.34 7.32
8. 18
8.97
9.68
10.35
10.98
11. 57
8.0
3.82
5.40
6.62 7.64
8. 54
9.36
10. 11
10.81 11.46
12.08
8.5
3.98
5. 63
6.89
7.96
8.90
9.75
10. 53
11. 25
11.94
12.58
9.0
4. 13
5.85
7.16 8.27 9.24
10. 12
10.94
11.69
12.40
13.07
9.5
13. 55
4.28
12.85
6.06
12. 12
7.42
11.34
8.57 9.58
10.50
HYDRAULIC TABLES
327
Table 23.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/3g1/2
n=.011—Continued

8
.00055
.00060
.00065.00070.00075.00080 | .00085.00090.00095 .00100
T
0.2
1.08
1. 13
1. 18
1. 22
1.27
1.31
1.35
1.39
1.42
1.46
0.4
1.72
1.80
1.87
1.94
2. 01
2. 07
2. 14
2.20
2. 26
2.32
0.6
2.25
2. 35
2.45
2. 54
2. 63
2.72
2.80
2.88
2.96
3.04
0.8
2.73
2.85
2.97
3.08
3. 19
3. 29
3.39
3.49
3.59
3. 68
1.0
1.2
1.4
1.6
1.8
0248 00
3. 17
3.31
3. 44
3. 57
3.70
3.82
3.94
4.05
4. 16
4. 27
3.58
3.74
3.89
4.04
4. 18
4.31
4.45
4.58
4.70
4.82
3.96
4. 14
4.31
4. 47
4. 63
4.78
4.93
5. 07
5. 21
5.35
4.33
4. 53
4. 71
4.89
5.06
5. 23
5.39
5. 54
5.70
5.84
4.69
4.90
5. 10
5. 29
5.47
5. 65
5.83
6.00
6. 16
6.32
2.0
5.03
5. 25
5.47
5. 67
5.87
6.07
6. 25
6.43
6.61
6.78
2.2
5.36
5.60
5.83
6.05
6.26
6.46
6.66
6.86
7.04
7. 23
2. 4
5.68
5.93
6. 17
6.41
6. 63
6.85
7.06
7.26
7.46
7.66
2.6
5.99
6. 26
6. 51
6.76
7.00
7.22
7.45
7.66
7.87
8.08
2.8
6. 29
6.57
6.84
7.10
7.35
7.59
7.82
8.05
8. 27
8.49
3.0
6.59
6.88
7.16
7.43 7.70
7.95
8. 19
8.43
8.66
8.89
3.2 6.88
7. 19
7.48
7.76 8.03
8.30
8.55
8.80
9.04
9.28
3.4
7.16
7.48
7.79
8.08
8.37
8. 64
8.91
9. 16
9.41
9.66
3.6
7.44
7.77
8.09
8.40
8.69
8.98
9.25
9.52
9.78
10.03
3.8
7.71
8.06
8.39
8.70
9.01
9.30
9.59
9.87
10. 14
10.40
4. 0
7.98
8.34
8.68
9. 01
9.32
9.63
9.92
10. 21
10.49
10.76
4.2
8.25
8.61
8.97
9.30
9.63
9.95
10. 25
10.55
10. 84
11. 12
4.4
8.51
8.89
9.25
9.60
9.93
10. 26
10.58
10.88
11. 18
11.47
4.6
8.76
9. 15
9.53
9.89
10.23
10. 57
10.89
11. 21
11.52
11.82
4.8
9.02
9.42
9.80
10. 17
10. 53
10.87
11. 21
11. 53
11.85
12. 16
5.0
9.26
9.68
10.07 10.45
10.82
11. 17
11. 52
11.85
12. 17
12.49
5.2
9.51
9.93
10.34 10.73 11.10
11.47
11.82
12. 16
12.50
12.82
5. 4
9.75
10. 19
10.60
11.00
11.39
11.76
12. 12 | 12. 47
12.82
13. 15
5. 6
9.99
10. 44
10.86
11. 27
11.67
12.05
12.42 12.78
13. 13
13.47
5.8
10. 23
10.68
11. 12
11. 54
11.94
12. 33
12.71
13.08
13. 44
13.79
6,0 10.46
10.93
11.37
11.80
12. 22
12. 62
13.00
13.38
13.75
14. 11
6.2
10.69
11. 17
11.62
12.06
12.49
12.90
13. 29
13. 68
14.05
14. 42
6.4
10.92
11. 41
11.87
12. 32
12.75
13. 17
13. 58
13.97
14.35
14. 73
6.6
11. 15
11. 64
12. 12 | 12. 58
13.02
13. 44
13.86
14. 26
14.65
15.03
6.8
11.37
11.88
12.36
12.83
13. 28
13.71
14. 14
14. 55
14. 94
15.33
7.0
11.59
12. 11
12.60
13.08
13. 54
13.98
14.41 14.83
15. 24
15.63
7.5
12. 14
12.68
13. 20
13. 69
14. 18
14.64
15.09
15.53
15.95
16.37
8.0
12.67
13. 24
13.78
14.30
14.80
15. 28
15.75
16. 21
16.66
17.09
8.5 13.20
13.78
14.34
14.89
15. 41
15.91
16. 40
16.88
17.34
17.79
9.0
13.71
14.32
14.90
15. 46
16.01
16. 53
17.04
17.54
18.02
18.48
9.5
19. 16
14. 21
18.68
14.84
18. 18
15. 45
17.67
16.03 16.59
17. 14
328
HYDRAULIC TABLES
Table 23.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.011-Continued

.0010
.0015
.0020
.0025 .0030 .0035 .0040
.0045
.0050
0.2
1.46
1.79
2.07
2.31
2.53
2.73
2.92
3. 10
3.27
0.4
2. 32
2.84
3. 28
3.67
4.02
4.34
4.64
4.92
5. 19
0.6
3.04
3.72
4.30
4.81
5.26
5. 69
6.08
6. 45
6.80
0.8
3.68
4. 51
5. 21
5.82
6.38
6.89
7.36
7.81
8.23
1.0
4. 27
5. 23
6. 04
6.75
7.40
7.99
8.54
9.06
9.55
1.2
4.82
5.91
6.82
7.63
8.36
9.03
9.65
10. 23
10.79
1.4
5. 35
6. 55
7.56
8.45
9.26
10.00
10.69
11.34
11.95
1.6
5.84
7.16
8.26
9.24
10. 12
10.93
11.69
12.40
13.07
1.8
6. 32
7.74
8.94
9.99
10.95
11.83
12. 64
13. 41
14. 13
2.0
6.78
8.31
9.59
10.72
11.75
12.69
13. 56
14.39
15. 16
2.2
7.23
8.85
10.22
11. 43
12.52
13.52
14. 45
15. 33
16. 16
2.4
7.66
9.38
10.83
12. 11
13. 26
14.33
15.32
16. 24
17.12
2.6
8.08
9.89 11.42
12. 77
13.99
15. 11
16. 15
17. 13
18.06
2.8
8.49
10.39
12.00
13.42
14.70
15.88
16.97
18.00
18.98
3.0
8.89
10.88
12.57
14.05
15.39
16.62
17.77
18.85
19.87
3.2 9.28
11.36
13. 12
14.67
16.07
17.36
18.55
19.68
20.74
3.4
9.66
11.83
13.66
15. 27
16. 73
18.07
19.32 20.49
21.60
3.6
10.03
12.29
14. 19
15.87
17.38
18.77
20.07
21.29
22.44
3.8
10.40
12. 74
14.71
16. 45
18.02
19.46
20.81
22.07
23.26
4.0
10.76
13. 18
15.22
17.02
18. 64
20. 14
21.53
22.84
24.07
4.2
11. 12
13.62
15.73
17.58
19.26
20.80
22. 24
23.59
24.87
4.4
11.47
14.05
16. 22
18. 14
19.87
21.46
22.94
24. 33
25.65
4. 6
11.82
14. 47
16.71
18.68
20.47
22.11
23. 63
25.07
26. 42
4.8
12.16
14.89
17. 19
19. 22
21.05
22.74
24. 31
25.79
27. 18
5.0
12.49
15.30
17.67
19.75
21.64
23.37
24.98
26.50
27.93
5.2
12.82
15.70
18. 13
20.27
22. 21
23.99
25.64 27.20
28.67
5.4
13. 15
16. 10
18.60
20.79
22.77
24. 60
26.30 27.89
29.40
5.6
13.47
16.50
19.05
21.30
23. 33
25. 20
26.94
28.58
30.12
5.8
13. 79
16.89
19.50
21.80
23.89
25.80
27.58
29.25
30.84
6.0
14. 11
17.28
19.95
22.30
24. 43
26.39
28. 21
29.92
31.54
6. 2
14.42
17.66 20.39
22.80
24.97
26.97
28.83
30.58
32. 24
6. 4
14.73
18.04 20.83
23.28
25.51
27.55 29.45
31.24
32.93
6.6
15.03
18.41
21.26
23.77
26.03
28.12
30.06
31.89
33. 61
6.8
15. 33
18.78
21.68
24. 24
26. 56
28.69
30.67
32.53
34. 29
7.0
15.63
19.15
22. 11
24.72
27.08
29.25
31.26
33.16
34.96
7.5
16.37 20.05
23. 15
25.88
28.35
30.62
32. 74
34.72
36.60
8.0
17.09 20.93
24. 17
27.02
29.60
31.97
34. 18
36. 25
38. 21
8.5
17.79
21.79
25. 16
28.13
30.82
33. 29
35.59
37.74
39.79
9.0
18.48 22.64
26. 14
29.23
32.01
34.58
36.97
39. 21
41.33
9.5
42.85
19. 16
40.65
23.47
38.32
27.10
35.85
30.30
33. 19
HYDRAULIC TABLES
329
Table 23.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.011-Continued

s
0055
.0060
.0065
.0070
.0075
.0080
.0085 .0090 .0095 .0100
•
T
0.2
3.43
3.58
3.72
.3.87
4.00
4. 13
4. 26
4.38
4.50
4.62
0.4
5. 44
5.68
5.91
6. 14
6.35
6. 56
6.76
6.96 7.15
7.33
0.6
7.13
7.44 7.75
8.04
8.32
8.60
8.86
9.12
9.37
9.61
0.8
8.63
9.02 9.39
9.74
10.08
10.41 10.73
11.04 11.35
11.64
1.0
10.02
10.46
10.89
11.30
11.70
12.08
12.45
12.82 | 13. 17
13.51
1.2
11. 31
11.82
12.30
12.76
13. 21
13.64
14.06
14. 47
14.87
15. 26
1. 4
12.54
13. 10
13. 63
14. 14
14.64
15. 12
15.59
16.04
16. 48
16.91
1.6
13.71
14. 31
14.90
15.46
16.00
16. 53
17.04
17.53
18.01
18. 48
1.8
14.82
15.48
16. 12
16.72
17.31
17.88
18.43
18.96
19.48
19.99
2.0
15.90
16. 61
17.29 17.94
18.57
19.18 19.77 20.34
20.90
21.44
2.2 16.95
17.70
18.42
19.12
19.79
20.44
21.07
21.68
22. 27
22.85
2.4 17.96
18.76 19.52
20.26
20.97
21.66
22. 33
22.97
23. 60
24. 22
2.6 18.94
19.79
20.59
21.37
22. 12
22.85
23.55
24. 23
24.90
25. 54
2.8
19.90
20.79
21.64
22.45
23. 24
24.00
24.74
25.46
26.16
26.84
3.0
20.84
21.77
22.65
23.51
24.34
25. 13
25.91
26.66
27.39
28.10
3.2 21.76 22.72
23. 65
24.54
25. 41
26.24
27.05
27.83 28.59
29.34
3.4 22.65
23.66
24. 63
25. 56
26. 45
27.32
28. 16
28.98 29.77
30.55
3.6 23.53
24.58
25.58
26.55
27.48
28.38
29.26
30.10
30.93
31.73
3.8
24.40
25.48 26.52
27.52 28.49
29.42
30.33
31. 21
32.06
32.90
4.0
25. 25
26.37 27.44 28.48
29.48
30.45
31.38
32. 29
33.18
34.04
4. 2
26.08
27.24 28.35 29.42
30.45
31.45
32.42
33.36
34. 28
35. 17
4. 4
26.90
28.10 29.24
30.35 31.41
32. 44
33.44
34. 41
35.36
36. 27
4.6
27.71
28.94 30.12 31.26
32.36
33.42
34.45
35.45
36.42
37.36
4.8 28.51
29.78 30.99
32.16
33. 29
34.38
35.44
36.47
37.47
38.44
5.0
29.29
30.60
31.85
33.05
34. 21
35. 33
36.42
37.47 38.50
39.50
5.2 30.07
31. 41
32. 69
33.92
35. 11
36. 27
37.38
38.47
39.52
40.55
5. 4
30.84
32. 21
33.52
34.79
36.01
37. 19
38.34
39. 45
40.53
41.58
5. 6
31.59
33.00
34. 35
35.64
36.89
38. 10
39.28
40.41
41.52
42.60
5.8
32. 34
33.78
35. 16
36. 49
37.77
39.01
40.21
41.37 42.50
43. 61
6.0
33.08
34. 55
35.96 37.32
38.63
39.90
41.12
42. 32 | 43. 48
44. 61
6.2
33.81
35. 32 | 36. 76 | 38. 14
39.48
40.78
42.03
43.25
44. 44
45.59
6.4
34. 54
36.07 37.54 | 38.96
40.33
41.65
42.93
44. 18
45.39
46. 57
6.6
35. 25
36.82 | 38. 32 | 39.77
41. 16
42. 51
43.82
45.09
46.33
47.53
6.8
35.96
37.56 39.09 | 40.57
41.99
43.37
44.70
46.00
47.26
48. 49
7.0 36.66
7.5 38.39
38.29
39.85 41.36
42.81
44.22
45.58 46.90
48. 18
49.43
40.09 41.73
43.31
44.83
46.30
47. 72 | 49. 10
50.45
51.76
8.0 40.07
41.86 43.57
45. 21
46.80 48.33
49.82
51. 26
52.67
54.04
8.5
41.73
43.58 45.36
47.07
48.73
50.32
51.87
53.38
54.84
56. 27
9.0
43.35
45.28 47. 12
48.90 50.62
52. 28
53.89
55.45
56.97
58.45
9.5
44.94
46.94 48.85
50.70 52.48
54. 20
55.87
57.49 59.06
60. 60
563189°—14- 22
330
HYDRAULIC TABLES
Table 23.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
N
n=.011—Continued

.01
.02
.03
.04
.05
.06
.0%
.08
.09
.10
0.2 4.62
6. 53
8.00
9.24
10.33
11.32
12. 22
13.07
13.86
14.61
0.4
7.33
10.37
12. 70
14.67
16.40
17.96
19.40
20.74
22.00
23. 19
0.6
9.61
13. 59
16. 65
19. 22
21.49
23. 54
25.43
27. 18
28.83
30.39
0.8
11.64
16.46
20. 16
23.28
26.03
28.52
30.80 | 32.93
34.93
36.81
1.0
13. 51
19. 10
23.40
27.02
30. 21
33.09 35.74 38. 21
40.53
42.72
1.2
15.26
21.57
26.42
30. 51
34. 11
37.37 | 40.36 | 43. 15
45.77
48. 24
1.4
16.91
23.91
29.28
33.81
37.80
41. 41 | 44.73
47.82
50.72
53.46
1.6
18.48
26. 13
32.01
36.96
41.32 45.27
|
48.89
52. 27
55.44
58.44
1.8
19.99
28.27 | 34.62
34.62
39.98
44.70
48.96
52.89
56. 54
59.97
63.21
2.0
21.44
30.33
37.14
42.89 | 47.95
52. 53
56.74
60. 65
64.33
67.81
2.2
22.85
32.32
39. 58
45.70
51. 10
55.97 | 60.46
64.63
68.55
72. 26
2.4
24. 22
34. 25
41.94
48.43
54. 15
59.32
64. 07
68.49
72.65
76.58
2.6
25.54
36. 12
44.24
51.09
57.12 |
62. 57
67.58
72.25
76.63
80.77
2.8
26.84
37.95
46.48
53.67
60. 01
65.74
71.00
75.91 80.51
84.87
3.0
28. 10
39.74
48.67
56. 20
62.83
3.2
29.34
41.49 50.81
58.67
68.83
65.60 71.86 77.61
74.35 79.48
84.30
88.86
82.97
88.01
92. 77
3.4
30.55
43. 20❘ 52.91
61.09
68.30 74.82 80.82
86.40
91. 64
96.59
3.6
31.73
44.88 54.96
63.46
70.95
77.73 83.95
89.75
95. 20
100. 34
3.8
32.90
46.52 56.98
65. 79
73.56
80.58 | 87.04
93.05
98.69
104. 03
4.0
34.04
48. 14
58.96
68.08
76. 12
83.38
90.06
96. 28 102. 12
107.65
4.2
35. 17
49.73
60.91
70.33
78.63
86. 14
93.04
99. 47105. 50
111. 21
4.4
36. 27
51.30
62.83 72.55
81. 11
88.85
95.97102.60 108. 82
114.71
4.6
37.36
52.84
64.72
74.73
83.55
91.53
98.86105. 68
112. 09
118. 16
4.8 38.44
54.36
66. 58
76.88
85, 96
94. 16
101. 70 108. 73
115, 32
121. 56
5.0 39.50
55.86
68.42
79.00 | 88.33
96. 76
104. 51
111. 73
118. 50
124.91
5.2 40.55
57.34
70.23 | 81.09
90.67
99.32
107. 28
114. 69
121. 64
128.22
5.4
41.58
58.80
72.02 | 83. 16
92. 98
92.98
101.85 110. 01
101.85 110. 01
117. 61124. 74
131.49
5.6 42.60
60. 25
73.79 85.20
95. 26
104.35
112. 71
120.49 127. 80
134. 72
5.8
43.61
61.67
75.53
87.22
97.51
106. 82
115. 38
123. 35
130.83
137.90
6.0 44.61
63.08 77.26
89.21
99.74 109. 26
118. 02
126. 16
133. 82
141. 06
8.2 45.59
64.48 78.97
91. 18
101.95
|111. 68
|120. 62
|128. 95
|136. 78
144. 17
6.4 46.57
65.86 | 80.66
93. 13
104. 13
114. 07
123. 21
|131. 71
139. 70
147.26
6.6
47.53
67.22 | 82.33
95.06
106. 29
116. 43
125. 76
134. 44
142. 60
150. 31
6.8 18.49
68.57 83.98
96.98 108. 42
118. 77
128. 29137. 14
145. 46
153.33
7.0 49.43
69.91 85.62
98.87
110. 54
121.09
130.79 139.82
148. 30
156. 32
7.5 51.76
73.20
89.65 103. 52
115.74
126. 79
|136. 95 |146. 40
155.28
163.68
8.0
54.04
76.42
93.59 108. 07
120.83
132.36
142. 97152. 84
162. 11
170.88
8.5
56. 27
79.57
9.0
58.45
82.66 101. 24
97.45 112.53
116.90
125. 81
|137.82
130. 70 |143. 17
148. 86 159. 14
168. 80
177.93
|154.65 |165. 32
|175. 35
184. 84
9.5 60.60
191. 62
85.70 104.95 121. 19 135. 50 148. 43 160. 32 171.39 181.79
HYDRAULIC TABLES
331
Table 23.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.011-Continued

.00005 | .00010
.00015.00020
00025.00030 | .00035.00040.00045.00050
T
10
4. 43
6.27
7.68
8.87 9.91 10.86 11.73
12.54
13.30
14. 02
11
4.72
6.68
8. 18
9.45❘ 10.56 11.57
12.50
13.36
14. 17
14.94
12
5.01
7.08
8.67
10.01 11.20
12.26
13.25
14. 16
15.02
15.83
13
5. 28
7.47
9.15
10.56 11.81
12.94
13.97
14.94
15.84
16.70
14
5.55
7.85
9.61
11.10
12.41 13.59
14.68
15.69
16.65
17.55
15
5.81
8.22
10.06
11.62
12.99
14.23 15.37
16.43
17.43
18.37
16 6.07
8.58
10. 51
12. 13
13.56
14.86
16.05
17. 16
18.20
19. 18
17
6.32
8.93
10.94
12.63
14. 12
15.47
16.71
17.86
18.95
19.97
18 6.56 9.28
11.36
13. 12
14.67
16.07 17.36 18.56
19.68
20.75
19
6.80
9.62
11.78
13.60 15. 21
16.66
18.00 19.24
20.40
21.51
20
7.04
9.95
12. 19
14.08
15.74
17.24
18.62 19.91
21.11
22. 26
2222
21 7.27
10.28
12.59
14.54
16. 26
17.81
19.24 20.57
21.81
22.99
22 7.50
10.61
12.99
15.00
16.77
18.37
19.84 21.21
22.50
23.72
23 7.73
10.93
13. 38
15. 45
17.27
18.92
20.44 21.85
23.18 24.43
24
7.95
11. 24
13.77
15.90
17.77
19.47
21.03 22.48
23.84
25.13
25
8. 17
11.55
14. 15
26
8.38
11.86
14.52
27
8.60
12. 16
28 8.81
12.46
29
9.02
12.75
16.33 18.26 20.01
16.77 18.75 20.54
14.89 17.19 19.22 21.06 22.75
15.26 17.62 19.70
15.62 18.03 20.16
21.61
23.10
24.50
25.83
22.18 23.71
25. 15
26.51
24.32
25.79
27.19
21.58 23.30 24.91
26.42
27.85
22.09 23.86 25.50
27.05
28.51
30
9.22
13.04 15.97 18.45
20.62
22.59
24.40 26.09
27.67
29.16
31
9.43
13.33 16.33 18.85
21.08
23.09
24.94
26.66 28.28
29.81
32
9.63
13.62 16.68 19.26
21.53
23.58
25.47 27.23
28.88
30.45
33
9.83
13.90
17.02 19.66
21.98
24.07
26.00 27.80 29.48
31.08
34
10.03
14. 18
17.36 20.05 22.42
24.56
26.52 28.36
30.08
31.70
35
10.22
14. 45
17.70 | 20.44 | 22.85
25.04 | 27.04 | 28.91
30.66
32.32
36
10. 41
14. 73
18.04 20.83 | 23.29
25.51 27.55 29.46
31.24
32.93
37
10. 61
15.00
18.37
21.21
23.72
25.98 28.06 30.00
31.82
33.54
38
10.80
15. 27
18.70 21.59
24. 14
39
10.99
15.54
19.03 | 21.97 | 24.56
24.56
26.45
26.91
28.57 30.54
32.39
34. 14
29.06 31.07 32.96
34.74
40
11. 17
15.80
41
11.36
42
11.54
43 11.72
44 11.91
19.35 22.35 24.98
16.06 19.67 22.72 25.40
16.32 19.99 23.08
16.58 20.31 23.45
16.84 20.62 | 23.81
25.81
26. 22
26.62 | 29.16 | 31.50
27.37 29.56
27.82 | 30.05
28.27 30.54 32.65
31.60
33.52
35.33
32. 13
34.07
35.92
34.63
36.50
28.72 31.02 | 33.16
35. 17
37.08
33.67
35.72
37.65
45 12.09
46
12.26
17.09
17.34
47
12. 44
17.59 21.55
20.93 | 24. 17
21.24 24.53
24. 88
27.02 29.60 31.97
27.42 30.04 32.45
27.82 | 30.47 | 32.91
34. 18
36.26
38.22
34.69
36.79
38.78
35. 19
37.32
39.34
48
12.62
17.84 21.85
25. 23
28.21 30.90 33.38
35.68
37.85
39.90
49 12.79
18.09 22.15
25.58
28.60 31.33
33.84 | 36. 18
38.37
40.45
50 12.96
41.00
18.33 22.46 | 25.93 | 28.99 | 31.76 34.30 | 36.67
38.89
332
HYDRAULIC TABLES
Table 23.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v=· r2/31/2
N
n=.011-Continued

.00055
070
.00060 | .00065.00070.00075.00080.00085.00090.00095.00100
10
11
27
28
38
PERRI 49*** &7232 32532 878** *8-88
14. 71
15. 36
15.99
16.59 17. 17
17.74 18. 28
18.81 19.33
19.83
15.67
16. 37
17.04 17.68
18.30
18.90
19.48
20.05 | 20.59
21. 13
12
16.61
17.34
18.05
18.73
19.39
20.03
20. 64
21.24 21.82
22.39
13 17.52
18.29 19.04
19.76
20.45
21. 13
21.78
22. 41
23. 02
23.62
14
18.40
19.22
20.01
20.76
21.49
22.20
22.88
23.54 | 24. 19
24.81
15 19. 27
20.13
20.95 | 21. 74
22.50
23. 24
23.96
24. 65
25.32
*25.98
16
20.12
21.01
21.87 22.69
23.49
24. 26
25. 01
25.73
26. 44
27. 13
17
20.95
21.88
22.77❘ 23. 63
24. 46
25.26
26.04
26.79
27.53
28. 24
18 21.76 22.73
23.66
24. 55
25. 41
26. 24
27.05
27.84 28.60
29. 34
19
22.56
23.56
24.52 | 25. 45
26. 34
27. 21
28.04
28.86 29.65
30.42
20
23.34
24.38
25. 38
26. 33
27.26
28. 15
29.02
29.86
30.68
31.48
21
24. 11
25. 19
26. 22
27.21
27.21
28. 16
29.08
29.98
30.85 31.69
32.52
24.87
25.98
27.04 | 28.06
29.05
30.00
30.92 31.82
32.69
33. 54
25. 62
26.76
27.85 28.91
29.92
30.90
31.85 32.78 33.67
34.55
24
26.36
27.53
28.66
29.74
30.78
31.79
32.77 | 33.72 | 34. 64
35.54
27.09
28. 29
29. 45
29.45
30.56
31.63
32.67
33.67 34.65
35.60
36.52
26
27.81
29.04
30.23
31. 37
32. 47
33.53
34.57
35.57
36.54
37.49
28.51 29.78 31.00
32. 17
33.30
34.39
35.45
36. 47
37.47
38.45
29.21
30.51 31.76
32.96
34. 11
35. 23
36.32 | 37.37
38.39
39.39
29
29.90
31.23 32.51
33.74
34.92
36.07
37. 18
38.25
39.30
40. 32
30 30.59 31.95 33.25
34, 51
35.72
36.89
38.03
39.13
40. 20
41.25
32
31 31.26 32.65 33.99
31.93 33.35 34.71
35. 27
36. 51
37.71
38.87 39.99
41.09
42. 16
36.03
37.29
38.51 39.70 40.85 41.97
43. 06
33 32.59 34.04 35.43
36. 77
38.06
39.31
40.52 | 41.70 | 42.84
43.95
34 33.25
34.73
36.15
37.51
38.83
40. 10
41.34 42.53 43. 70
44.83
35
33.90
35. 41
36.85
38.24 39.59
40.88
42. 14 |
43. 36
44.55
45.71
36
34.54
36.08
37.55
38.97 40.34
41.66
42.94
44. 19
45.40
46.58
37
35. 18
36.74
38. 24
39.69
41.08
42. 43
43.73
45.00
46. 23
47. 43
35.81
37.40
38.93
40.40
41.82
43. 19
44.52
45.81
47.06
48. 29
39 36.43
38.05 39.61
41. 10
42.55
43.94
45.29
46. 61
47.88
49. 13
40 37.06
38.70 40.28
41.80
43. 27
44.69
46. 07
47.40
48.70
49.97
41
37.67
39.35
40.95
42.50
43.99
45.43
46.83
48. 19
49.51
50.79
42
38. 28
39.98
41.61
43. 19
44.70
46. 17
47.59
48.97
50.31
51.62
43
38.89
40. 61
42. 27
43.87
45. 41
46.90
48. 34
49.74
51. 11
52.43
44
39.49
41. 24
42.93
44.55
46. 11
47.62
49.09
50.51
51.89
53.24
45
*****
40.08
41.86
43. 57
45. 22
46.81
48.34
49.83
51. 27
52.68
54.05
46
40.67
42.48
44. 22
45.89
47.50
49.05
50.56
52.03
53.46
54.84
47
41. 26
43. 10
44.86
46. 55
48. 18
49.76
51.29
52.78
54. 23
55.64
48
41.84
43.70
45.49
47. 21
48.86
50. 47
52.02
53. 53
54.99
56. 42
49
42. 42
44.31
46. 12
47.86
49. 54
51. 16
52.74
54. 27
55.76
57.20
50
57.98
43.00
56. 51
44.91 46.74 48. 51
55.00
50. 21
53.45
51.86
HYDRAULIC TABLES
333
Table 23.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -p2/3p1/2
n=.011—Continued

8
.0010
.0015
.0020
.0025 .0030 .0035
.0040 .0045 .0050
T
10
19.83
24. 29
11
21.13
25.88
12
22.39
27.42
28.04
29.88
31.67 35.40
31.35
33.41 36.60
34.34
37.10
39.66
42.06
44.34
39.53
42. 26
44.82
47.25
38.78
41.89
44.78
47.50
50.07
13
23.62
28.93
33.40
37.34
40.91
44. 19
47.24
50. 10
52.81
14
24.81
30.39 35.09
39.24
42.98
46.42
49.63
52.64
55.49
15
25.98
31.82
36.75
41.08
45.00
48.61
51.97
55.12
58. 10
16
27.13
33.22
38.36 42.89
46.98
50.75
54.25
57.54
60.65
17
28. 24
34.59
39.94
44.66
48.92
52.84
56.49
59.91
63. 16
18
29.34
35.94
41.49
46.39 50.82
54.89
58.68
62. 24
. 65. 61
19
30.42
37.25
43.02
48.09
52.69
56.91
60.84
64.53
68.02
20
31.48
38.55
44. 51
49.77
54.52
58.89
62.95
66.77
70.38
21
32.52
39.82
45.99
51.41
56.32
60.83
65.03
68.98
72.71
22
33. 54
41.08
47.43
53.03
58.09
62.75
67.08
71.15
75.00
23
34.55
42.31
48.86
54.63
59.84
64.64
69. 10
73.29
77.26
24
35.54
43.53 50.27
56.20
61. 56
66.50
71.09
75.40
79.48
25
36.52
44.73
51.65
57.75
63. 26
68.33
73.05 77.48
81.67
26 37.49 45.92
53.02
59.28
64.94
70.14
74.98 79.53
83.84
27 38.45 47.09
54.37
60.79
66.59
71.93 76.90
81.56
85.97
28 39.39 48.24 55.71
62.28
68.23
73.69
78.78
83.56
88.08
29
40.32
49.39
57.03
63.76
69.84
75.44
80.65
85.54
90.17
30
41.25
50.51
58.33
65. 21
71. 44
77.16
82.49 87.49
92. 23
31
42. 16
51.63
59.62
66.66
73.02
78.87
84.31 89.43
94.27
32
43.06
52.74
60.89
68.08
74.58
80.56 86.12
91.34
96.28
33
43.95
53.83
62. 16
69.49
76. 13
82.22
87.90
93.23
98.28
34
44.83 54.91
63.41
70.89
77.66
83.88
89.67
95. 11
100. 25
35
45.71
55.98
64.64
72.27
79. 17
85.51
91.42
96.96
102. 21
36 46.58
57.04
65.87
73.64
80.67
87.14
93. 15
98.80
104. 15
37
47.43
58.10 67.08
75.00
82. 16
88.74
94.87
100. 62
106. 07
38
48.29
59. 14
68.29
76.35
83.63
90.33
96. 57
102.43
107.97
39
49. 13
60. 17
69.48
77.68
85.09
91.91
98.26
104.22
109.86
40
49.97
61. 19
70.66
79.00
86.54 93.48 99.93
105.99
111.73
41
50.79
62. 21
71.83
80. 31
87.98
95.03 101.59
107.75
113.58
42
51.62
63.22
73.00
81.61
89.40
96.57 103.23
109.50
115.42
43
52.43
64.22
74. 15
82.90 90.82
98.09
104.87
111. 23
117. 24
44
53.24
65. 21
75.30
84.18 92.22
99.61
106.49
112.95
119.05
45
51.05
66.19
76.43
85.46
93.61
101.11
108.09
114.65
120.85
46 54.84
67.17
77.56 86.72
94.99
102.60
109. 69
116.34
122. 64
47
55.64
68. 14
48
56.42
69.10
49 57.20
78.68 87.97
79.79
70.06 80.90
96.36
104. 09
111. 27
118.02
124.41
89.21 97.73
90.45 99.08
105.56
112.85
119.69
126. 16
107.02
114. 41
121.35
127.91
50 57.98
129.65
71.01 82.00
122.99
91.67 100.42 108. 47
115.96
334
HYDRAULIC TABLES
Table 23.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.011—Continued

8
.0055
.0060
.0065
.0070 .0075 .0080 .0085
.0090 .0095
.0100
T
10
46. 50
48.57
50. 55
52.46
54. 30|
56.08
57.81
59.49
61. 12
62.70
11
49.55
51.76
53.87
55.90
57.87
59.76
61. 60
63.39
65. 13
66.82
12
52.51
54.85 57.09 59.24
61.32
63.33
65. 28
67.17
69.01
70.81
13
55. 39
57.85 60.22 62.49
64.68
66.80
68.86
70.86
72.80
74.69
14
58.20
60.78
63.27
65.65
67.96
70. 19
72.35
74. 44
76.48
78. 47
15
19
21
29-09 27224 22RAR SM?
60.94
63.64
66.24
68. 74]
71.16
73.49
75.75
77.95
80.08 82.17
16 63.61
66.44
69.16
71.77
74.29
76.72
79.08
81.38
83.61 85.78
17 66.24
69. 18
72. 01
74.73
77.35 79.89
82.34
84.73
87.05
89.32
18 68.81
71.87
74.81
77.63 80.35
82.99
85. 54
88.02
90.43
92.78
71.34
74.51
77.55
80.48| 83.30
86.03
88.68
91.25
93. 75
96. 19
20
73.82
77.10 80.25
83.28 86.20
89.03
91. 77
94.43
97.02
99.54
76. 26
79.65
82.90
86.03
89.05
91.97
94.80
97.55
100. 22
102.83
78.66
82.16
85. 51
88.74
91. 86
94.87
97.79 100. 62)
103. 38
106.07
23
81.03
84.63
88.08
91.41
94.62
97.72 100.73
103. 65
106. 49
109.26
83.36
87.06 90.62
94.04
97.34 100. 53
97.34 100.53| 103.63
106.63
109. 55
112.40
25
85.66
89.47 93, 12]
96. 64
100.03) 103. 31
106. 49
109. 57
112.58
115, 50
26
87.93 91.84 95.59
99.20 102.68 106.04
109. 31
112. 48
115. 56
118. 56
27
28
90.17 94.18 98.02 101.72
92.38 96.49 100.43 104. 22
105. 29
108.75
112.09
115. 34
118. 50
121.58
107.88
111.41
114.84 118. 17
121.41
124. 57
29
94.57
98.77 102.81| 106. 69|
110. 43
114.05| 117.56 120.97
124. 29
127. 51
30
96.73
101.03 105. 16
109. 12
31
98.87
103.26 107.48 111. 54
112.95
115. 45
116. 66| 120.25】 123.74 127.13) 130.43
119. 24| 122.91 126.47
129.94 133.31
32
100.98
105.47 109.78 113.92
117.92
121.79 125.54
129. 18
132. 72
136.16
33
103. 07
107.66 112. 05
116. 28
120.36
124.31 128. 14
131.85
135. 47
138.99
34
105.15
109.82 114. 31
118. 62
122.78
126.81
130. 71
134. 50
138. 19
141.78
***88
35
107.20
111.96 116.54
120.94
125. 18
129.29
133. 26
137.13
140.89 144.55
36
109.23
114.09 118.75 123. 23
127. 55
131.74
135. 79
139. 73
143. 56
147.29
37
111. 24
116.19 120.93 125.50
129.90
134.16
138. 29|
142.30
146. 20
150.00
38
113.24
118.27 123. 10
127.75
132. 23
136.57
140. 77
144. 86
148. 83
152.69
39
115. 22
120. 34 125. 25
129.98
134. 54
138.96
143. 23]
147.39
151.43 155.36
40
117.18
41
119.12
42
121.05
122.39 127.39 132.20 136.83
124.42 129.50 134. 39|| 139. 11
126.44 131.60 136. 57 141.36
141.32
145. 67
149.90 154.00 158.00
143. 67
43 122.97
128. 43 133.68 138. 72
143. 59
148.09 152.38 156. 56
145.99] 150.49 154.85 159.09
148. 30
160. 63
163. 23
152.87 157.30 161. 61
165.81
44 124.87
130.42 135. 74
140. 87
145.81
150. 59
155. 23
159.73
164. 11
168. 37
45 126.75
132.39 137.79 142.99
148. 01
152.87
157.57
162.14
166. 58
170.91
46
128.62
134. 34 139.83 145. 10
150. 20
155. 12
159.90
164. 53
169. 04
173. 43
47
130. 48
136.28 141.85 147.20
152. 37
157.36
162. 21
166. 91
171. 48
175.94
48
132.32
138.21 143.85 149. 28
154. 52
159. 59
164. 50
169. 27| 173.91 178.42
49
134. 15
140. 12 145. 84 151. 35
156. 66
161.80
166. 78
171. 61 176.31 180.89
50
135.97 142.02 147.82 153.40 158.78 163.99 169.04 173.94| 178.70 183.35
HYDRAULIC TABLES
335
Table 23.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.011—Continued

S
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
11
13
16
17
18
20
21
23
24
26
27
28
29
30
33
35
36
37
SERIE 19E-2 RR222 22222 AMS** ---38 **** 94599 8
10 62.70
66.82
12 70.81
74.69
14
78.47
15
82.17
116.20
142. 31
85.78
121. 31
148. 57
89.32
126. 31
154. 70
92.78
131. 22
96. 19
160.71
136.03| 166. 61|
88.68 108. 61| 125. 41| 140. 21 153.59 165.90 177.35 188.11 198.29
94.49 115.73| 133.63 149.41 163. 67| 176.78| 188.99| 200.45| 211.29
100. 14| 122. 64| 141.62| 158. 33 173.44 187.34 200.27 212.42 223.91
105.63 129.36 149. 38 167.01 182.95 197.61 211.25| 224.07 236.19
110.98 135.92 156. 94 175.47 192. 21 207.62 221.95 235. 41 248. 15
164. 33] 183. 73 201.26 217.39] 232.40| 246. 50| 259. 83
171.55 191.80 210. 11 226.95] 242.62| 257.33] 271.25
178.63] 199.71 218.78 236.31 252.62 267.95 282.44
185. 57 207.47 227.27 245.48 262.43 278.35 293. 41
192. 38 215.09 235. 62 254.49 272.07 288. 57
304. 18
99.54
102.83
106. 07
109.26
112.40
140.76 172.40 199.07 222.57 243.81 263.35 281.53 298. 61)
145. 42 178. 10 205. 65 229.93 251.87 272.05 290.84 308. 48
150.00 183. 71 212. 13 237. 17 259.81 280.62 300.00 318. 20
154. 51 189. 24| 218. 51| 244.30 267.62| 289.06| 309.02] 327.77|
158.96 194. 68| 224.80| 251.33 275. 32 297.38 317.92] 337.20
314. 76
325. 17
335. 41
345. 50
355.44
25
115. 50
118.56
163.34 200.05
231.00
258.27| 282.92
305.59
326. 69
346. 50
365. 25
167.67 205. 35
237. 12
265. 11
290.41
313. 68
335. 34|
355. 68
374.92
121.58
171.94 210. 59
243. 16
271.87
297.81
321.68
343.89
364.75
384. 48
124. 57
176. 16
215. 75
249. 13
278. 54
305. 12
329. 57
352. 32
373.70
393.91
127.51
180.33 220.86
255.03
285. 13
312.34
337.37】
360. 66|
382. 54)
403. 23
130.43
184.45 225.91 260.86 291.65
319.48
345.08 368.91
391. 29
412.45
31
133. 31
188.53 230.90 266.62 298.09
326. 54
352. 71
377.06
399.93
421. 57
32
136. 16
192.56 235.84 272. 33|
304. 47
333. 53
360.25
385. 13
408. 49|
430.59
138.99
196.55 240.73 277.97
310.78
340.44
367.72
393. 11
416.96
439. 51
34
141.78
200. 51 245. 57
283. 56
317.03
347.29
375. 11
401.01
425. 34
448. 34
144. 55
204. 42 250. 36
289.09
323. 21
354. 06
382. 43
408. 84 433. 64 457.09
147.29
208.29 255. 11|
294. 57
329. 34
360.78
389.68
416. 59] 441.86| 465.76
150,00
212. 13 259.81 300.00
335. 41|
367.43]
396.87|
424. 27| 450.00 474. 34
152.69
215.94 264.47 305. 38
341. 43
374. 02
403.98
431.88|| 458.07|| 482.85
39 155.36 219.71 269.09 310.72
347. 39
380. 55
411.04
439. 42 466.08 491. 29
41
40 158.00
160.63
223.45 273.67 316.01
353. 31
387.03
418.04
446. 90
474. 01
499.65
227.16 278. 21
321. 25
359. 17
393. 45
424. 98
454. 32
481.88
507.94
42
163. 23
230.84 282.72 326.45 364.99
399.82
431.86
461. 68
489. 68
516. 17
43
165.81
234.49 287. 19 331.62 370.76
406. 14|
438. 69|
468.98
497.42
524. 33
44
168.37
238. 11 291.62 336.74 376. 48|
412. 42
445. 46
476. 22|
505. 11|
532. 43
170.91
241.70 296.03 341.82 382. 17
418. 64
452. 19
483. 41
512.73 540.47
46 173.43 245. 27 300.39 346. 87
387.81
424. 82
458. 86
490. 54
520.30
548. 44
47
48
175.94
178.42
180.89
248.81 304.73 351.87
393. 41
430.96
465. 49
497.63
527.81
556. 36
252.33 309. 04 356. 85
398.97
437.05
472.07
504. 66
535. 27
564. 23
255.82 313.32 361.79
404. 49
443. 10
478.60
511.64
542.68
572. 04
50
183. 35
259.29 317. 57 366. 69 409.98 449. 11 485. 09 518. 58 550.04 579.79
336
HYDRAULIC TABLES
Table 24.—Velocity of water, v, in feet per second, based on
1.486
2/3 S¹
1/2
n
Manning's formula v= 7'
Co
n=.012

.00005 .00010.00015 | .00020 | .00025 | .00030 | .00035 | .00040 | .00045 .00050
་
Т
0.2 0.30
0.42
0.52 0.60 0.67
0.73
0.79 0.85 0.90 0.95
0.4
.48
.67 .82
.95
1.06
1. 16
1.26
1.34 1.43
1.50
0.6
.62
.88 1.08
1.25
1.39
1.53
1.65
1.76
1.87
1.97
0.8
.75
1.07 1.31
1.51
1.69
1.85
2.00
2. 13
2.26
2.39
1.0
.88
1.24
1.52
1.75
1.96
2. 14
2. 32
2.48
2.63
2.77
1.2
.99
1.40 1.71
1.98
2. 21
2.42
2.62
2.80
2.97
3. 13
1.4
1.10
1.55 1.90
2.19
2.45
2.68
2.90
3.10 3.29
3.47
1.6
1.20
1.69 2.07
2.40
2.68
2.93 3.17
3.39
3.59
3.79
1.8
1.30
1.83
2.24
2.59
2.90
3.17
3.43
3.66
3.89
4. 10
2.0
1.39
1.97
2.41
2.78
3. 11
3.40
3.68
3.93
4. 17
4.40
2.2
1.48
2.09
2.57
2.96
3.31
3.63
3.92
4.19
4. 44
4.68
2.4 1.57
2.22
2.72
3. 14
3.51
3.84
4. 15
4.44
4.71
4.96
2.6
1.66
2. 34
2.87
3.31
3.70
4.06
4.38
4.68
4.97
5. 24
2.8
1.74
2.46
3.01
3.48
3.89
4. 26
4.60
4.92
5.22
5.50
3.0 1.82
2.58
3.15
3.64
4.07
4.46
4.82
5. 15
5.46
5.76
3.2
1.90
2.69
3.29
3.80
4.25
4.66
5.03
5.38
5.70
6.01
3.4
1.98
2.80 3.43
3.96
4. 43
4.85
5. 24
5.60
5.94
6.26
3.6
2.06
2.91
3.56
4. 11
4.60
5.04
5.44
5.82
6. 17
6.50
3.8
2. 13
3.02
3.69
4. 26
4.77
5.22
5.64
6.03
6.40
6.74
4.0
2. 21
3. 12
3.82
4.41
4.93
5.40
5.84
6. 24
6.62
6.98
4.2
2.28
3.22
3.95
4.56
5.10
5.58
6.03
6.45
6. 8i
7.21
4.4
2.35
3.33
4.07
4. 70
5. 26
5.76
6. 22
6.65
7.05
7.44
4. 6
2.42
3.43
4. 19
4.84
5.42
5.93
6. 41
6.85
7.27
7.66
4.8
2.49
3.52
4. 32
4.98
5.57
6. 10
6.59
7.05
7.47
7.88
5.0
2. 56
3.62
4. 43
5. 12
5.73
6.27
6.77
7.24 7.68
8.10
5.2
2.63
3.72
4.55
5. 26
5.88
6. 44
6.95
7.43
7.88
8.31
5.4
2.70
3.81
4.67
5.39
6.03
6.60
7. 13
7.62
8.09
8.52
5.6
2.76
3.91
4.78
5.52
6. 17
6.76
7.31
7.81
8.28
8.73
5.8
2.83
4.00
4.90
5.65
6.32
6.92
7.48
8.00
8.48
8.94
6.0
2.89
4.09
5.01
5.78
6.47
7.08
7.65
8.18
8. $7
9.14
6.2
2.96
4. 18
5. 12
5.91
6.61 7.24
7.82
8.36
8.87
9.35
6.4
3.02
4. 27
5. 23
6.04
6.75 7.39
7.99
8.54
9.06
9. 54
6. 6
3.08
4.36
5.34
6. 16
6.89
7.55
8. 15
8.71
9.24
9.74
6.8
3.14
4.44
5. 44
6.29
7.03
7.70
8.32
8.89
9.43
9.94
7.0
3.20
4.53
5.55
6. 41
7.16
7.85
8.48
9.06
9.61
10. 13
7.5 3.36
4.74
5.81
6.71
7.50
8.22 8.88
9.49
10.07
10.61
8.0
3.50
4.95
6.07
7.01
7.83 8.58
9.27
9.91
10. 51
11.08
8.5
3.65
5. 16 6.32 7.29
9.0
3.79
5. 36
6.56 7.58
8.15 8.93
8.47 9.28
9.65
10.32
10.94
11.53
10.02 10.72 11.37
11.98
9.5
12.42
3.93
11.78
5.55
10.39 11. 11
6.80 7.86 8.78
9.62
HYDRAULIC TABLES
337
Table 24.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.012-Continued

s
.00055
.00060
00070
.00065.00070.00075.00080.00085 | .00090.00095
080
.00100
0.2
0.99
1.04
1.08
1. 12 1.16 1.20
1. 23 1.27
1. 31
1.34
0.4
1.58
1.65
1. 71
1.78
1.84
1.90
1.96
2.02
2.07
2. 13
0.6
2.07
2. 16
2.25
2. 33
2.41
2.49
2. 57
2. 64
2.72
2.79
0.8
2.50
2.61
2.72
2.82
2.92
3.02
3. 11
3.20
3.29
3.37
Hi Hi Hi Hi H
0246
1.0
2.90
3.03
3. 16
3.28
3.39
3.50
3.61
3.72
3.82
3.92
1.2
1.4
1.6
1.8
3.28
3.43
3.57
3.70
3.83
3.96
4.08
4.20
4. 31
4.42
3. 63
3.80
3.95
4. 10
4. 24
4. 38
4.52
4. 65
4. 78
4.90
3.97
4. 15
4.32
4. 48
4. 64
4.79
4.94
5.08
5. 22
5. 36
0
4.30
4. 49
4. 67
4.85
5.02
5. 18
5.34
5.50
5.65
5.79
2.0
4.61
4.82
5.01
5.20
5.38
5.56
5.73
5.90
6.06
6. 22
2.2
4.91
5. 13
5. 34
5. 54
5.74
5.92
6. 11
6. 28
6. 46
6.62
2.4
5. 21
5. 44
5.66
5.87
6.08
6. 28
6.47
6.66
6. 84
7.02
2.6
5.49
5.74
5.97
6. 19
6.41
6. 62
6.83
7.02
7.22
7.40
2.8
5.77
6.03
6. 27
6. 51
6. 74
6.96
7.17 7.38
7.58
7.78
3.0
6.04
6. 31
6.57
6.82
7.05
7.29
7.51
7.73
7.94
8. 15
3. 2
6. 31
6. 59
6.86
7.11
7.36
7.61
7.84
8.07
8. 29
8.50
3.4
6.57
6.86
7. 14
7.41 7.67
7.92
8. 16
8.40
8.63
8.85
3.6
6.82
7.12
7.42
7.70 7.97
8.23
8.48
8.73
8.97
9.20
3.8
7.07
7.39
7.69 7.98
8.26
8.53
8.79
9.05
9.29
9.54
4.0
7.32
7.64
7.96
8.26
8.55
8.83
9.10
9.36
9.62
9.87
4.2 7.56
7.90
8.22 8.53
8.83
9. 12
9.40
9.67
9.94
10. 19
4.4 7.80
8. 14
8.48
8.80
9. 11
9.40
9.69
9.98
10. 25
10. 51
4.6
8.03
8.39
8.73 9.06
9.38
9.69
9.99
10. 28
10. 56
10.83
4.8
8.26
8.63
8.98 9.32
9.65
9.97
10. 27
10. 57
10.86
11. 14
5.0
8.49
8.87
9.23
9.58
9.92
10. 24
10.56
10.86
11. 16
11.45
5.2
8.72
9. 10
9. 48
9.83
10. 18
10. 51
10.84
11. 15
11. 46
11.75
5.4 8.94
9.34
9.72
10.08
10.44
10.78
11.11
11.43
11.75
12.05
5.6
9.16
9.57
9.96
10.33
10.69
11.05
11.39
11.72
12.04
12.35
5.8
9.37
9.79
10. 19
10.58
10.95
11. 31
11.65
11.99
12. 32
12.64
6.0
9.59
10.02
10.42
10.82
11.20
11.57
11.92
12. 27
12.60
12.93
6.2
9.80
10. 24
10.66
11.06
11.45
11.82
12. 18
12. 54
12.88
13. 22
6. 4
10.01
10. 46
10.88
11. 29
11.69
12.07
12. 45
12.81
13. 16
13.50
6.6
10. 22
10.67
11. 11
11.53
11.93
12.32
12.70
13.07
13. 43
13.78
6.8
10.42
10.89
11.33
11.76
12.17 12.57
12. 96
13. 33
13.70
14.06
7.0
10.63
11. 10
11.55
11.99 12.41
12.82
13. 21
13.59
13.97
14.33
7.5
11.13
11.62
12. 10
12.55
12.99
13. 42 | 13.83
14. 23
14.62
15.00
8.0
11.62
12. 13
12.63
13.11
13.57
14.01 14.44
14.86
15. 27
15. 66
8.5
12. 10
12.63
13. 15
13.65
14. 12
14.59
15.04
15.47
15.90
16.31
9.0
12.57
13. 12
13.66
14. 18
14.67
15. 15
15.62
16. 07
16. 51
16.94
9.5
17.57
13.03
17.12
13. 61
16. 66
14. 16
16. 19
14.70
15. 71
15. 21
338
HYDRAULIC TABLES
Table 24.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 72/31/2
co
n=.012
N
Continued

.0010
.0015
.0020 .0025
.0030 .0035 .0040
.0045
.0050
0.2
1.34
1.64
1.89
2.12
2.32
2.51
2.68
2.84
2.99
0.4
2. 13
2.60
3.01 3.36
3.68
3.98
4. 25
4. 51
4.75
0.6
2.79
3.41
3.94
4.40
4.83
5.21
5.57
5.91
6.23
0.8
3.37
4. 13
4.77
5.34
5.85
6.31
6.75
7.16
7.55
1.0 3.92
4.80
5.54
6.19
6.78
7.33
7.83
8.31
8.76
1.2
4.42
5. 42
6.25
6.99
7.66
8.27
8.84
9.38
9.89
1.4
4.90
6.00
6.93
7.75
8.49
9.17
9.80
10.40
10.96
1.6 5.36
6.56
7.58
8.47
9.28
10.02
10.71 11.36
11.98
1.8
5.79
7.10
8.19
9.16
10.04
10.84
11.59
12.29
12.96
2.0
6.22
7.61
8.79
9.83
10.77
11.63
12. 43
13. 19
13.90
2.2 6.62
8.11
9.37
10.47
11.47
12.39
13.25
14.05
14.81
2.4
7.02
8.60
9.93
11.10
12.16
13.13
14.04
14.89
15.70
2.6 7.40
9.07
10.47 11.71
12.82
13.85
14.81
15.71
16.56
2.8
7.78
9.53
11.00 12.30
13.47
14.55
15.56
16.50
17.40
3.0
8.15
9.98
11.52
12.88
14.11
15.24
16. 29
17.28
18. 21
3.2 8.50
10.41
12.03
13.45
14.73
15.91
17.01
18.04
19.01
3.4
8.85 10.84
12.52
14.00
15. 34
16.56
17.71
18.78
19.80
3.6 9.20 11.27
13.01
14.54
15.93
17.21
18.40
19.51
20.57
3.8
9.54 11.68 13.49
15.08
16.52
17.84
19.07
20.23
21.32
4.0
9.87
12.09 13.95
15.60
17.09
18.46
19.74
20.93
22.06
4.2
10. 19
12.48 14.42 16.12
17.66
19.07
20.39
21.62
22.79
4.4
10.51
12.88
14.87
16.63
18. 21
19.67
21.03
22. 31
23.51
4.6
10.83
13.27
15. 32
17.13
18.76
20.26
21.66
22.98
24. 22
4.8
11. 14
13.65
15.76
17.62
19.30
20.85
22.29
23.64
24.92
5.0 11.45
14.02
16. 19
18.10 19.83 21.42
22.90
24. 29
25.60
5.2 11.75
14.40
16.62
18.58
20.36 21.99
23.51
24.93
26. 28
5.4
12.05
14.76
17.05
19.06 20.88
22.55
24.11
25.57
26.95
5.6
12.35
15. 12
17.46 19.53
21.39
23.10
24.70
26.20
27.61
5.8 12.64
15.48
17.88
19.99
21.90
23.65
25. 28
26.82
28.27
6.0
12.93
15.84
18.29 20.44
22.40
24.19
25.86
27.43
28.91
6.2
13. 22
16. 19
18.69
20.90
22.89
24.72 26.43
28.04
29.55
6.4
13.50
16.53
19.09 21.34
23.38
25.25 27.00 28.63
30.18
6.6 13.78 16.88
6.8 14.06 17.21
19.49
21.79
23.86
25.78
27.56 29.23
30.81
19.88 22.22
24.34
26.30 28.11 29.82
31.43
7.0 14.33 17.55
7.5 15.00
8.0 15.66
20.27 22.66
24.82
26.81
28.66
30.40
32.04
18.38
21.22 23.72 25.99
28.07
30.01
31.83
33.55
19. 18
22.15 24.77
27.13
29.30
31.33
33.23
35.03
8.5
16.31
9.0 16.94
19.98 23.07 25.79
20.75 23.96 26.79 29.35
28.25
30.51 32.62
34.60
36.47
31.70
33.89
35.94
37.89
9.5 17.57 21.51 24.84 27.77 30.42
39.28
32.86
37.26
35. 13
HYDRAULIC TABLES
339
Table 24.—Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
n=.012-Continued

.0055
.0060 .0065 .0070
.0075 .0080
.0085
.0090
.0095
.0100
T
0.2
3. 14
3.28
3. 41
3. 54
3. 67
3.79
3.90
4.02
4. 13
4. 24
0.4
4.99
5. 21
5. 42
5.62
5.82
6.01
6. 20
6. 38
6. 55
6.72
0.6
6. 53
6.82
7.10
7.37
7.63 7.88
8.12
8.36
8.59
8.81
0.8
7.91
8. 27
8.60
8.93
9.24
9.54
9.84
10.12 10.40
10.67
11111
024G∞O
1.0
9.18
9.59
9.98
10.36
10.72
11.08
11.42
11.75
12.07
12.38
1.2
1.4
1.6
1.8 13. 59
10.37
10.83
11. 27
11.70
12.11
12.51
12.89
13. 27
13.63
13.98
11.49
12.00
12.49
12.97
13. 42
13.86
14. 29
14.70
15. 10
15.50
12.56
13.12
13.66
14. 17
14. 67
15. 15
15.62
16. 07
16.51
16.94
14. 19
14. 77
15.33
15.87
16.39
16.89
17.38
17.86
18.32
2.0 14.58
15.23
15.85
16.45
17.02
17.58
18. 12
18.65
19. 16
19.66
2.2
15.53
16. 23
16.89 17.53
18. 14
18.74
19. 31
19.87
20.42
20.95
2.4
16. 46
17.19
17.90 18.57
19. 22
19.85
20.47
21.06
21.64
22.20
2.6
17.36
18. 14 18.88 19.59
20.28
20.94
21.59
22. 21
22.82
23.41
2.8
18. 24
19.06
19.83
20.58
21.30
22.00
22. 68
23.34
23.98
24.60
3.0
19. 10
19.95
20.77 21.55 22.31
23.04 23.75
24.44
25.11
25.76
3.2
19. 94
20.83 21.68
3.4
20.77
21.69
22.57
3.6 21.57
22. 53
23.45
22.50 | 23. 29
23.43 24. 25
24.34 25. 19
24.05 24.79
25.51
26. 21
26.89
25.04 25.81 26.56 27.29
28.00
3,8
22.36
23.36
24. 31
25.23
26.12
26.02 | 26.82 | 27.59 | 28.35
26.97 27.80 28.61 29.39
29.09
30.16
4.0
23. 14
24. 17
25. 16
26. 11
27.02
27.91
28.77
29.60 | 30.41
31. 20
4.2
23.91
24.97
25.99 | 26.97
27.92 28.83
29.72
30. 58 31.42
32. 24
4.4
24. 66
25.76 26.81 27.82
28.80 | 29.74
30.66
31.54 | 32. 41
33.25
4.6
25.40
26.53 27.61
28.66 | 29.66 | 30.64
31.58
32.49 33.38
34.25
4.8
26. 13
27.29 28.41
29.48
30.52 | 31. 52
32. 49 |
33. 43
34.34
35.24
5.0 26.85
28.05 29.19
30.29
31.36
5.2
27.56 28.79
5.4 28.27
29.97
31. 10
29.52 30.73
31.89
5.6 28.96
30.25 31.48
32.67
5.8
29.65 30.96 32.23
33. 45
32.39
32. 19 33.24
33.01 34.09
33.82 | 34.93
34.62 | 35.75 |
33. 38 |
34, 35 | 35.29
36. 21
34. 27 35.26
35. 14 | 36. 16 37.15
36.00 37.05 | 38.06
36. 23
37. 17
38. 12
39.05
36.86 | 37.92 | 38.96
39.98
6.0
30.32 31.67
32.97
34. 21
35. 41
36. 57
6.2
30.99
32.37
33.69
34.97
36. 19
37.70
37.38 38.53
38.79 | 39.85
40.89
39.65
40.73
41.79
6.4
31.66
33.06
34. 41
35.71
36.97
38.18 | 39.36 40.50
41. 61
42.69
6.6
32. 31
33.75
35. 13
36. 45
37.73
38.97
40.17 | 41.34
42.47
43. 57
6.8
32.96
34.43
35.83
37.19
38.49
39.75
40.98
42. 17
43.32
44. 45
7.0
33.61
35.10 36.53 37.91 39.24 40.53
41.78 | 42.99
44.17
45.31
7.5
35. 19
36.75 38.25 39.70 41.09
42.44
43.74 45. 01
46.25
47.45
8.0
36.73
38.37
39.94 | 41.44 | 42.90
44.30
45.67 | 46.99
48.28
49.53
8.5
38.25
39.95
41.58 43. 15
44. 67
46. 13
47.55 48.93 50.27
51.58
9.0
39.74
41.50
43. 20
44.83
46.40
47.92
49.40
50.83 52.22
53.58
9.5
55.55
41. 19
54. 14
43.03 44.78 46.47
52.70
48. 10
51. 21
49.68
340
HYDRAULIC TABLES
Table 24.--Velocity of water, v,
-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.012—Continued

.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2
4. 24
5.99
7.34
8.47
9.47
10.37
11.20
11.98 12.71
13.39
0.4
6.72
9.51
11.64
13.45
15.03
16.47
17.79
19.01
20.17
21.26
0.6
8.81 12.46 15.26
17.62
19.70
21.58
23. 31
24.92
26. 43
27.86
0.8
10.67
15.09 18.48
21. 34
23.86
26. 14
28.23
30.18
32. 01
33.75
1.0 12.38
17.51 21.45
24.77 | 27.69
30.33
32.76
35.03
37. 15
39. 16
1.2
13.98
1.4 15.50
1,6
16.94
1.8
18.32
19.78❘ 24. 22 | 27.97 | 31. 27
21.92 26.84 30.99 34. 65
23.96 29.34
25.91 31.74
|
34. 25
37.00
39.55
41.95
44.22
37.96
41.00
43.83
46. 49
49.01
33.88
37.88
41. 49
44.82
47.91
50.82
53. 57
36.65 | 40.97
44.88
48. 48
51.83
54.97
57.95
2.0 19.66
27.80 34.05
39.31
43.96
48. 15
52.01
55.60
58.97
62.16
2.2
20.95
29.62 | 36. 28
41.89
46. 84
51.31
55.42 59.25
62.84
66.24
2.4
22.20
31. 39
38.45
44.40
49.64
54.37
58.73 62.79
66. 59
70.20
2.6
23. 41
33. 11
40.56
46.83
52.36
57.35
61.95 | 66. 23
70. 24
74.04
2.8
24. 60
34.79
42.61
49.20
55.01
60.26
65.09
69.58
73.80
77.79
3.0
25.76
36.43
44. 61
51.52
57.60
63.09
68. 15
72.86 77.28
81.46
3.2
26.89
38.03
46. 58
53.78
60. 13
60. 13
65.87
71. 15
76.06 80.67
85.04
3.4 28.00
39.60
48,50
56.00
62.61
68. 59
74.08
79.20
84.00
88.54
3.6
29.09
41. 14
50.38
58. 17
65.04
71. 25
76.96
82.27 87.26
91.98
3.8
30. 16
42.65
52. 23
60. 31
67.43
73.86
79.78
85.29 90.47
95.36
4.0
31.20
44. 13
54.05
62.41 | 69.77
76.43
82.56
88.26
93. 61
98.68
4.2
32. 24
45.59
55.83
64. 47 72.08
78.96
85.29
91. 18
96.71
101.94
4.4
33. 25
47.02
57.59
66.50 | 74.35 81.45
87.97
94.05
99. 75
105. 15
4. 6
34.25
48. 44
59.32
68.50 76.59 | 83.90
90.62
96.88 102. 75
108. 31
4.8
35.24
49.83
61.03
70.47
78.79
86.31
93.23
99.67105.71
111.43
5.0
36. 21
51. 21
62.72
72.42
80.97
88. 69
95.80
102. 41 108. 63
114.50
5.2
37.17
52.56
64.38 74.34
83.11 | 91.04
98.34
105. 13
111. 51
117.54
5.4
38. 12
53.90
66.02 | 76. 23
85. 23
93.36 100.84
107. 81
|114. 35
120.53
5.6
39.05
55.23
67.64 78.10
87.32
95. 65103. 32
110. 45
117. 15
123. 49
5.8
39.98
56.53
69. 24
79.95
89.39
97.92105.76
113.07
119.93
126. 41
6.0
40.89
57.83
70.82
81. 78
91. 43
100. 16 108. 18
115. 65
122. 67
129.30
6.2 41.79
59. 10
72.39
83.59 | 93.45 [102. 37
|110. 57
118. 21
|125. 38
132. 16
6.4 42.69
60.37
73.94
85.37
95. 45
104. 56
112.94
120.74
128. 06
134.99
6.6 43.57
61.62
75. 47
87.14
97.43 106. 73
115. 28
123. 24 |130. 71
137.78
6.8 44.45 62.86
76.98 | 88.89
99.39 108.87 117.60
125. 72
133. 34
140. 55
7.0
45.31 64.08 78.49 90.63
7.5 47.45 67.10 | 82. 18 | 94. 89
8.0 49.53 70.05 85.79 99.07
101.33
111. 00119. 89
128. 17
135.94
143.30
|106. 10
|116. 22
|125. 53
|134. 20
|142. 34
150.04
110. 76
121.33
131. 05
140. 10
148. 60
156. 64
8.5 51.58
9.0 53.58
72.94 89.33 103. 15
75.77
115. 33
126. 34
|136. 46
145. 88
|154. 73
163. 10
92.80 107.16
119. 81
131. 24
141.76
151. 55
160. 74
169.43
9.5 55.55 78.55
175.65
96. 21 111.09 124. 20 136. 06 146.96 157. 11 166. 64
HYDRAULIC TABLES
341
Table 24.-Velocity of water, v, in feet per second, based on
8
.00005
1.486
Manning's formula v= r2/31/2
n
n=.012-Continued



.00010.00015.00020.00025 .00030.00035.00040.00045.00050
30
31
32
33
36
39
41
42
PERRE 1-*** 2*8** 22522 **** 33588 =**
10
4.06
5.75
7.04 8. 13
9.09
9.96
10.75
11.50
12.19
12.85
11
4.33
6.12
7.50
8.66
9.68
10. 61
11.46
12. 25
12.99
13.70
12
4. 59
6. 49
7.95
9.18
10.26
11. 24
12. 14
12.98
13.77
14. 51
13
4.84
6.85
8.39
9.68
10.83
11.86
12.81
13. 69
14. 52
15. 31
14
5.09
7.19
8.81
10. 17
11.37
12.46
13.46
14.39
15. 26
16.08
15
5. 33
7.53
9.22
10. 65
11.91
13.05
14.09❘ 15.06 | 15.98
16.84
16
5. 56
7.86
9.63
11. 12 |
12. 43
13.62
14.71
15.73 | 16.68
17.58
5.79
8. 19
10.03 11.58
12.95
14. 18
15. 32
16.37 | 17.37
18. 31
.
18
6. 01
8.51
10.42 | 12.03
13.45
14.73
15.91
17.01
18.04
19.02
6. 23
8.82
10.80 12.47
13.94
15.27
16.50
17.63
18.70
19.72
20
6. 45
9.12
11.17
12.90
14.43
15.80
17.07
18. 25
19.36
20.40
21
6.67
9.43
11.54
13. 33
14.90
16.33
17.63
18.85
20.00
21.08
22 6.87
9.72 11.91
13.75
15. 37
16.84
18. 19
19.45 20.62
21.74
23
7.08
10.02 | 12. 27
14. 16
15.84
17.35
18.74
20.03 | 21.25
22.39
24
7.29
10.30
12.62
14. 57
16.29
17.85
19. 28 | 20. 61
21.86
23.04
7.49
10.59
12.97
14.97
16.74
18.34
19.81
21.18
22. 46
23.67
26
7.68 10.87
13. 31
15. 37
17. 18
18.82 20.33
21.74
23.05
24.30
7.88 11.15
13.65
15.76
17.62
19.30
20.85
22. 29
23.64
24.92
28 8.07 11.42
29 8.27
13.98
16. 15
18.05
19.78
21.36
22.84
24. 22
25. 53
11.69
14. 32
16. 53
18.48
20.25
21.87
23.38
24.80
26. 14
8. 45
11.96
14. 64
16.91
18.90
20.71
22.37
23.91
25. 36
26.73
8.64
12.22
14.97
17.28 19.32
21.17
22.86
24. 44
25.92
27.33
8.83
12. 48
15. 29
17.65 19.74
21.62
23.35
24.96
26.48
27.91
9.01
12. 74
15.60
18.02
20.14
22.07
23.83
25.48
27.03
28.49
34
9.19
13.00
15.92
18.38
20.55 22.51
24.31
25.99 27.57
29.06
9.37
13. 25
16. 23
18.74
20.95 22.95
24.79
26. 50
28.11
29.63
9.55
13.50
16. 54
19.09
21.35
23.38
25. 26
27.00 28.64
30.19
37 9.72
13.75
16.84
19. 45
21.74
23.82
25.72
27.50
29.17
30.75
9.90
14.00
17. 14
19.79
22.13
24. 24
26. 19
27.99
29.69
31.30
10.07
14. 24
17.44
20. 14
22.52
24.67
26. 64
28.48
30.21
31.84
40 10.24
14.48
17.74
20.48
22.90
25.09
27.10 28.97
30.72
32.39
10.41
14. 72
18.03
20.82❘ 23. 28
25.50 27.55
29.45 31.23
32.92
10.58
14.96
18. 33
21. 16
23.66
25.92 27.99
29.92
31. 74
33.46
43 10.75
15.20
18. 61
21.49
24.03
26.33 28.43
30.40
32. 24
33.99
44 10.91
15.43
18.90
21.83
24.40 26.73
28.87
30.87
32. 74
34. 51
45
11.08
15.67
19. 19
22.16
24. 77
27. 14
29.31
31. 33
33. 23
35.03
46
11. 24
15.90
19.47
22.48
25. 14
27.54
29.74
31.80
33.72
35. 55
47
11.40
16. 13
19. 75
22.81
25.50
27.93
30. 17
32. 26
34.21
36.06
48
11.57
16.36
20.03
23. 13
25.86
28.33
30.60
32.71
34.70
36.57
49 11.73
16.58 20.31
23.45
26.22
28.72
31.02
33. 16
35. 18
37.08
50
37.58
11.88
35. 65
16.81 20.58
33.61
23.77
31. 44
26.57 29.11
342
HYDRAULIC TABLES
Table 24.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
.00055.00060
n=.012-Continued


.00065.00070 | .00075.00080.00085.00090.00095.00100
.00065 070
27
37
47
PIRII 49209 22232 42233 C-83* ***** **** ***** 8
11
10 13.48
14.36
14.08
14.65
15. 21 15.74
16.26
16. 76
17.24 17.72
18. 18
15.00
15. 62
16. 20
16.77
17.32
17.86
18.37
18.88
19.37
12
15. 22
15.90
16.55
17.17
17.78
18.36 18.92
19.47
20.01
20.53
13
16.06
16. 77
17.46
18. 11
18.75
19.36 19.96
20.54
21.10
21.65
14
16.87
17.62
18.34
19.03
19.70
20.35
20.97
21.58
22.17
22.75
15
17.66
18.45 19.20 19.93
20.63
21.30
21.96
22.60
23. 21
23.82
16 18.44 19.26
20.05 20.80
21.53
22. 24
22.92
23.59
24. 24
24.86
17 19.20 20.05 20.87
21.66
22.42
23.16
23.87
24.56
25. 23
25.89
18 19.95
20.83 21.68
22.50
23.29
24.06
24.80
25.52
26. 21
26.90
19
20.68 21.60 22.48
23.33
24. 15
24.94
25.71
26.45
27. 18
27.88
21
20 21.40 22.35 23.26
22.11 23.09 24.03
24. 14
24.99
25.81
26.60 27.37
28.12
28.85
24.94
25.81
26.66 27.48
28.28 29.05
29.81
22.80 23.82 24.79
25.72 26.63
27.50 28.35 29.17 29.97
30.75
23.49
24.53
25.53
26.50
27.43
28.33
29.20 30.05
30.87
31.67
24
24. 16
25.24
26. 27
27.26
28. 22
29.14
30.04
30.91
31.76
32.58
25
24.83
25.93
26.99
28.01
29.00
29.95
30.87 31.76
32.63
33.48
26
25.49
26.62 27.71 28.75
29.76
30.74 31.69 32.60
33.50
34.37
26. 14
27.30 28.41 29.49
30.52
28
26.78
27.97 29.11
30.21
31. 27
31.52
32.30 33.29
32.49 33.44
34.35
35.24
34.26
35. 19
36.11
29 27.41
28.63 29.80
30.93
32.01
33.06 34.08 35.07
36.03
36.96
30 28.04
29.29
30.48
31.63
32.74 | 33.82 | 34.86 | 35.87
36.85
37.81
31
28.66 29.93
31. 16
32.33
33.47 34.56 35.63 36.66
37.67
38.64
32
29.27
30.57
31.82
33.02
34. 18
35.30
36.39 37.44
38.47
39.47
34
33 29.88
30.48
31. 21
32.48
33.71
34.89
36.04
37.14
38.22
39. 27
40.29
31.83
33. 13
34.39 35.59 36.76
37.89
38.99
40.06
41.10
35 31.07
32.46 33.78 35.06 36.29
37.48
38.63
39.75
40.84
41.90
36
31.66
33.07 34.42
35.72 36.97
38. 19
39.36
40.50
41.61
42.69
32. 25
33.68 35.06
36.38 37.66
38.89
40.09 41.25
42.38
43.48
38
32.83
34.28
35.68
37.03
38.33
39.59
40.81 41.99
43. 14
44. 26
39 33.40
34.88 36. 31
37.68
39.00 40.28
41.52
42.72
43.89
45.03
40
33.97 35.48 36.93
38.32
39, 67
39.67 40.97
42.23
43.45
44.64
45.80
41
34.53
36.07 37.54
38.96
40.32 | 41.65
42.93
44. 17
45.38
46.56
42 35.09 36.65
43 35.64 37.23 38.75
44 36.20 37.80 39.35
38. 15
39.59
40.98 42.32 43.62
44.89
46. 12
47.32
40. 21
41.62 42.99 | 44.31
45.60
46.85
48.06
40.83
42.27 43.65 45.00
46.30
47.57
48.81
45 36.74 38.38 39.94 41.45
42.91
44.31 45.68
47.00
48.29
49.54
46 37.28 38.94 40.53
42.06
43.54
44.97 46.35 47.69
49.00
50.27
37.82 39.50
41. 12
42.67
44. 17
45.62 | 47.02 | 48.38
49.71
51.00
48 38.36 40.06 41.70
43.27
44.79
46.26 | 47.68 49.07
50.41
51.72
49
38.89 40.62 42.28
43.87 45. 41
46.90 48.34
49.75
51. 11
52.44
50
39.42
41.17 42.85
44.47 46.03 47.54 49.00
50.42
51.80
53.15
HYDRAULIC TABLES
343
Table 24.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= p2/31/2
n
n=.012—Continued

8
.0010
.0015
.0020
.0025 .0030
.0035
.0040 .0045
.0050
T
35
37
38
40
41
42
46
47
48
49
PERRI 19=== 22222 22282 ***** ***** ***** ***** 8
10
18.18
22.26
25.71 28.74
31.48
34.00
36.35
38.56 40.64
11
19.37
23.72
27.39 30.62
33.55
36. 24
38.74
41.09
43.31
12
20.53
25. 14
29.03
32.45 35.55
38.40
41.05
43.54
45.90
13
21.65
26. 52
30.62
34.23
37.50
40.50
43.30
45.93
48.41
14
22.75
27.86
32. 17
35.97
39.40
42. 56
45.49
48.25
50.86
15
23.82
29.17
33.68
37.66
41.25
44. 56
47.64
50.52
53.26
16
24.86
30.45
35.16
39.31
43.07
46.52
49.73
52.75
55. 60
17
25.89
31.71
36. 61
40.94
44.84
48.44
51.78
54.92
57.89
18
26.90
32.94
38.04
42.53
46.59
50.32
53.79
57.05
60. 14
27.88
34.15
39.43
44.09
48.29
52.16
55.77
59.15
62.35
20 28.85
35.34
40.80
45.62
49.97
53.98
57.71
61. 21
64.52
21 29.81
36. 51
42. 15
47.13
51.63 55.76
59.61
63. 23
66.65
23
30.75
31.67
37.66
43. 48
48.61 53.25
57.52
61.49
65. 22
68.75
38.79
44.79
50.08 54.86
59.25
63.34
67.18
70.82
24 32.58 39.90
46.08
51.52
56.43 60.96
65. 16
69. 12
72.86
25
33.48
41.01 47.35
52.94
57.99 62.64
66.96
71.02
74.87
26
34.37
42.09
48.60
54. 34
59.53
64.30
68.74
72.91
76.85
27
35. 24
43. 16
49.84
55.73
61.04
65.93
70.49 74.76
78.81
36.11
44.22
51. 07
57.09
62.54
67.55
72.22
76.60
80.74
29
36.96
45. 27
52. 27
58.44
64. 02
69.15
73.93 78.41
82.65
30
37.81
46. 31
53.47
59.78
65. 49
70.73
75.62
80.20
84.54
31
38.64
47.33
54. 65
61.10
66.93
.72.30
77.29
81.98
86. 41
32
39.47
48.34
55.82
62. 41
68.36
73.84
78.94
83.73
88.26
33 40.29 49.34
56.98
63.70
69.78
75.37
80. 58
85.46
90.09
34 41.10 50.33
58. 12
64.98
71. 18
76.89
82.20
87.18
91.90
41.90 51.32
59.26
66. 25
72.57
78.39
83.80 88.88
93.69
36
42.69
52.29
60.38
67.51
73.95
79.87
85.39 90.57
95.47
43. 48
53.25
61.49
68.75
75.31 81.35
86.96 92.24
97.23
44. 26
54. 21
62.60
69.98
76.66 82.81
88.52
93.89
98.97
39
45.03
55. 16
63.69
71. 21
78.00
84.25
90.07
95, 53
100. 70
45.80
56.09 64.77
72.42
79.33
85.69
91.60
97.16
102. 41
46. 56
47.32
57.03 65.85 73.62
57.95 66.91
80.65
87.11
93. 12
98.77
104. 11
74.81
81.95
88.52
94.63
100.37
105.80
43 48.06 58.87 67.97 76.00
83.25
89.92
96. 13
101.96
107.47
44 48.81 59.77
69.02
77.17
84.53
91. 31
97.61
103.53
109. 13
45
49.54
60. 68
70.06
78.33
85.81
92.69
99.09
105. 10
110.78
50.27
61.57
71.10
79.49
87.08
94.05
100.55 | 106.65
112. 42
51.00 62.46
72. 12
80. 64
88.33
95. 41
102.00 108. 19
114. 04
51.72 63.34
73. 14
81.78
89.58
96.76 | 103. 44 | 109.72
115. 65
52.44 64.22
74.16
82.91
90.82
98.10 104.87 111.23
117.25
53.15 65.09 75.16 84.03 92.05
99.43 106.30 | 112. 74
118.84
344
HYDRAULIC TABLES
Table 24.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/381/8
n
n=.012-Continued

8
.0055
.0060
.0065 .0070
.0075 .0080 .0085 .0090 .0095 .0100
T
10
42. 63
44.52
46. 34
48.09
11
45.42
47.44
49.38
51.24
49.78 51.41 52.99 54.53 56.02 57.48
53.04 54.78 56.47 58.11 59.70 61.25
12
48. 14
50.28 52.33
54. 31
56.21
58.05
59.84
61.58| 63.26 64.91
13
50.77
53.03
55.20
57.28
59.29
61. 24
63. 12
64.95
66.73
68.46
14
53.35
55.72
57.99
60.18
62.30
64.34
66.32
68.24
70. 11
71.93
15
55.86
58.34
60. 72
63.02 65.23
67.37
69.44
71.45
73.41
75.32
16
58.31
60.91
63.39
65.79
68.09
70.33
72.49
74.59
76.64 78.63
17
60.72
63.42
66. 01
68.50
70.90 73.23
75.48
77.67 79.80] 81.87
18 63.08
65.88
68.57
71.16 73.66
76.07
78. 41
80.69
82.90 85.05
19
65.39
68.30 71.09 73.77
76.36
78.87
81.29
83.65
85.94 88.17
20
67.67
70.68 73.56
76.34
79.02
81. 61
84. 12
86.56
88.93
91. 24
21
69.90
73.01 75.99 78.86
81.63
84.31
86.90
89.42
91.87
94.26
22
72.11
75.31 78.39 81.35
84.20
86.96
89.64|| 92.24|
94.76
97.23
23
74.27
24
76.41
77.58
79.81
80.74 83.79 86.73
83.07 86.20 89.23
89.58
92.16
92.33 95.01
94.99 97.75 100.42 103.03
97.62 100. 15
25
78.52
82.01 85.36 88.58
91.69
26
80.60
27 82.65
84.18 87.62 90.93
86.33
94.12
94.12
94.70 97.61 100.44 103. 20 105.88
97.21 100.20 103.10 105.93 108.68
89.85 93.25
96.52
28
84.68
88.45
29
86.69
90.54
99.68 102.75 105.73| 108.63| 111.45
92.06 95.53 98.89 102. 13 105.27 108.33 111. 29 114. 19
94.24 97.80 101.23 104.55 107.77 110.89 113.93 116.89
30
88.67
92.61
31
90.63
94.66
32
92.57
33
94.48
34
96.38
96.39 100.03 103.54 106.94 110.23 113. 42
98.52 102. 24 105.83 109.30 112.66 115.93
96. 68 100.63 104. 43 108.09 111. 64 115.07 118. 41
98.69 102.72 106.59 110.33 113.95 117.46
100.67 104.78 108.74 112. 55 116. 24
116.53 119.56
119. 11
122. 20
121. 66
124.82
120.87 124.18 127.40
119.82
123.29 126.67 129.96
35
98.26
36
100. 13
37
101.97
38
103.80
39
105. 62
102.63 106.83 110.86 114.75 118. 51 122. 16 125.70 129.15 132.50
104.58 108.85 112.96 116.92 120.76| 124.47 128.08 131.59 135.01
106.51 110.86 115.04 119.08 122.98 126.77
108.42 112.85 117.11 121.22 125. 19 129.04
110.31 114.82 119. 15 123.33 127.38
130. 44
134.02 137.50
132.78
136. 42
139.97
131. 30
135. 10
138. 81
142.41
40
107.41
41
109. 20
42
110.96
112. 19 116.77 121. 18 125. 43
114.05 118.71 123.19 127.51 131.70 135.75 139.68 143.51| 147.24
115.90 120.63 125.19 129.58 133.83 137.95 141.95 145.84 149.62
129.55 133. 53
137.40 141. 17 144.84
43
112.72
44 114.46
117.73 122.54 127.16 131.63
119.55 124. 43 129. 13 133.66
135.94 140. 13|
138.04 142. 29
144.19
148. 14
151.99
146. 42
150. 43
154. 34
45
116. 19
121.35 126.31 131.08
135. 68
140.13
144. 44
148. 63 152. 70
156.67
46
117.90
47
48
123.15 128. 17 133. 01
119.61 124.92 130.02 134.93 139.67
121.30 126.69 131.86 136.84 141.64
137.68
142. 20
146.57
144. 25
150.82 154.95 158.98
148.69 153.00 157.19 161.28
49
122.97
146.29| 150.79 155. 16 159.41 163. 56
128.44 133. 69 138.73 143. 60 148.31 152.88 157.31 161. 62 165.82
50
124. 64 130.18 135. 50 140.62 145.55 150.32 154.95 159.44 163.81 168. 07
HYDRAULIC TABLES
345
Table 24.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.012—Continued.

.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
10
57.48
81.29 99.56 114.96
128. 53
140.79
152.07
162. 57
172. 44
181, 76
11
61.25
86.62 106.09
122. 50
136.96
150.03
162.05
173. 24
183. 75
193.69
12
64.91
91.79 112. 42
129. 81
145. 14
158. 99
171. 73
183. 58
194. 72
205.25
13
68.46
96.82 118.58 136.93
153.09
167.70
181. 14
193. 65
205.39
216. 50
14
71.93
101.73 124.59 143.86
160.85
176. 20
190.31
203. 45)
215.80
227. 47
15
75.32
106. 52 130.45
150.64
168. 42
184. 49
199. 27
213. 03
225.95 288. 18
16
78.63
111. 20
136. 19
157. 26
175.82
192. 60
208.03
222.40
235.89) 248.65
17
81.87
115.78 141. 81
163. 74
183. 07
200. 55
216. 61
231. 57
245. 62
258. 90
18
85.05
120.28 147.31
170. 10
190. 18
208. 33
225.03
240. 56
255. 16
268.96
19
88. 17
124.70 152. 72
176. 35
197. 16
215.98
233. 29
249. 39
264. 52
278.83
20
91. 24
129.03 158.03
182.48
204.02
223.49
241.40
258.07
273.72 288.53
21
94. 26
133.30 163. 26
188. 52
210.77
230.88
249. 38
266. 60
282.77 298.07
22
97.23
137.50 168. 40
194. 45
217.41
238. 16
257. 24
275.00
291. 68
307. 46
23
100. 15
141. 64
173. 47
200. 30
223.94
245. 32|
264.98
283. 27
300. 45
316. 71
24
103. 03
145. 71
178. 46
206.07
230.39
252.38
272.60
291, 42
309. 10
325.82
25
105.88
149.73 183. 38|
211.75
236.75
259.34
280. 12
299, 46
317.63 334.81
26
108.68
153.70 188. 24 217.36
243. 02
266. 21
287.54
307.40
326.04 343.68
27
111.45
157.61 193.04 222.90
249. 21
273.00
294. 87
315. 23
334. 35 352.44
28
114. 19
161.48 197.77 228.37 255.33
279. 70
302. 11|
322, 96|
342. 56| 361.09
29
116.89
165.30 202.46] 233.78| 261.37
286. 32
309. 26|
330.61
350.66 369.63
30
119. 56
31
122.20
32
124.82
33
127.40
34
129.96
172.82 211.66 244.40
176. 52 216. 19 249.63
180.18 220. 67
183.80 225. 10
254. 81
284.88
312. 07
259.93
290. 61
318. 35
169.08 207.08 239.12 267.34 292.86] 316. 33|
273.25] 299.33| 323.32|
279.10 305.74 330. 23|
337.08
345.64 366.61 386.44
353.03] 374. 45| 394. 70
360, 35 382. 21 402.88
360.35|
367.59 389.89 410.98
338. 17
358.68] 378.08
343. 85
35
132. 50
187.38 229.50 265.00 296. 28]
324.56
350.56
374.77
397.50 419.00
36
135. 01
37
137.50
190.94 233.85 270.02 301.90
194.46 238. 16 275.00 307.46
330. 71
357. 21
381. 87
405. 04 426.95
336.81
363. 79
388. 91
412.50 434.82
38
139.97
197.94 242.43
279.93】 312. 98|
342,85
370.32
395.89] 419.90) 442.62
39
142. 41
201.40 246. 67
284.82 318. 44
348. 84
376. 79
402. 80
427. 24) 450.35
40
144.84
204.83 250.86 289.67
323.86
354.78
383. 20
409. 66
434. 51)
458. 01
41
147. 24
208.23 255.03 294. 48
329. 24
360. 66
389. 56
416.46
441.72 465.61
42
149.62
211.60 259. 16
299. 25
334. 57
366. 50
395.87
423. 20
448. 87
473. 16
43
151.99
214.95 263. 26
303.98
339.86
372,30
402. 13
429.89
455.97 480.64
44
154. 34
218.27 267.32 308.68] 345. 11|
378.05 408.34
436. 53|
463.01| 488.06
45 156.67
46
158.98
221.56 271.36 313.34 350.32 383.76 414. 50
224.83 275.36 317.96 355.49 389.42 420.62
443. 12
470.00 495. 43
449. 66
476.94 502.74
47
161.28
228.08 279.34 322, 55
360.62
395 04
426.70 456. 16
483. 83
510.00
48
163. 56
231.30 283.29 327. 11
365. 72
400.63
432.73
462, 60
490.67 517.21
49
165.82
234.50 287.21 331. 64
370. 78
406. 17
438.72
469. 01
497. 46
524. 37
50
168. 07
237.68 291. 10 336. 14 375. 81 411. 68 444. 67 475. 37 504. 20 531.48
563189°
--23
41
346
HYDRAULIC TABLES
Table 25.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.013



.00005 .00010 .00015 .00020 .00025 .00030.00035 .00040.00045.00050
00040
00045
T
0.2
0.28
0.39
0.48
0.55
0.62
0.68 0.73
0.78
0.83
0.87
0.4
.44
.62 .76
.88
.98
1.07
1.16
1. 24
1.32
1.39
0.6
.57
.81 1.00
1.15
1.29
1.41
1.52
1.63
1.72
1.82
0.8
.70
.99
1.21
1.39
1.56
1.71
1.84
1.97
2.09
2. 20
1.0
+2
1.4
1.6
1.8
0246 00
.81
1.14
1.40
1.62
1.81
1.98
2. 14
2.29
2.42
2.56
.91
1.29
1.58
1.83
2.04
2.24
2. 41
2.58
2.74
2.89
1.01
1.43
1.75
2.02
2.26
2.48
2.68
2.86
3.03
3.20
1.11
1.56
1.92
2. 21
2.47
2.71
2.93
3. 13
3.32
3.50
1.20
1.69
2.07
2.39
2.67
2.93
3. 16
3.38
3.59
3.78
2.0
1.28 1.81
2.22
2.57
2.87
3. 14
3.39
3.63
3.85
4.06
2.2
1.37
1.93
2.37
2.73 3.06
3.35
3.62
3.87
4.10
4. 32
2.4
1.45
2.05
2. 51
2.90
3.24
3.55
3.83
4. 10
4.35
4. 58
2.6
1.53
2.16
2.65
3.06 3.42
3.74
4.04
4. 32
4.58
4.83
2.8
1.61
2.27
2.78
3.21
3.59
3.93
4. 25
4. 54
4.82
5.08
3.0
1.68
2,38
2.91
3.36
3.76
4.12
4. 45
4.76
5. 04
5.32
3.2
1.76
2.48
3.04
3.51
3.92
4.30
4.64
4.96
5. 27
5. 55
3. 4
1.83
2.58
3. 17
3.66
4.09
4.48
4.84
5. 17
5.48
5.78
3.6
1.90
2.68
3.29
3.80
4. 25
4.65
5. 02
5.37
5.70
6.00
3.8
1.97
2.78
3. 41
3.94
4. 40
4.82
5. 21
5.57
5.90
6. 22
4.0
2.04
2.88
3.53
4.07
4. 55
4.99
5.39
5.76
6. 11
6.44
4.2
2.10
2.98
3.64
4. 21
4.70
5. 15
5. 57
5.95
6.31
6.65
4.4
2.17
3.07
3.76
4. 34
4.85
5. 32
5.74
6. 14
6. 51
6.86
4.6
2. 24
3. 16
3.87
4.47
5.00
5.48
5.91
6. 32
6.71
7.07
4.8
2.30
3.25
3.98
4.60
5.14
5. 63
6.09
6.51
6.90
7.27
5.0
2.36
3.34
4.09
4.73
5. 28
5.79
6. 25
6.68
7.09
7.47
5.2 2.43
3.43
4.20
4.85
5. 42
5.94
6.42
6.86
7.28
7.67
5.4
2.49
3.52
4. 31
4.98
5. 56
6.09
6.58
7.04
7.46
7.87
5.6
2.55
3.60
4. 41
5.10
5.70
6. 24
6.74
7.21 7.65
8.06
5.8
2.61
3.69
4.52
5.22
5.83
6.39
6.90 7.38
7.83
8.25
6.0 2.67
3.77
4.62 5.34
5.97
6.54 7.06 7.55
8.01
8.44
6.2
2.73
3.86
4.72
5.46
6.10
6.68
7.22 7.72
8.18
8.63
6.4 2.79
3.94
4.83
5. 57
6. 23
6.82
7.37
7.88
8.36
8.81
6.6
2.84
4.02
4.93
5.69
6.36
6.97 7.52
8.04
8.53
8.99
6.8
2.90
4. 10
5.02
5.80
6.49
7.11 7.68
8. 21
8.70
9.17
7.0
2.96
4. 18
5. 12
5.92
6.61
7.24
7.83
8.37
8.87
9. 35
7.5 3.10
4.38
5.36
6. 19
6.92
7.59
8. 19
8.76
9.29
9.79
8.0 3.23
4, 57
5.60
6.47
7.23 7.92
8.55
9. 14
9.70
10.22
8.5
3.37
4.76
5.83 6.73
7.53 8.25
8.91
9.52
10. 10
10.65
9.0
3.50
4.95 6.06 6.99
7.82
8.57
9.25
9.89
10.49
11.06
9.5
11. 47
3.63
10.88
5. 13
10.25
6.28
9.59
7.25 8.11
8.88
HYDRAULIC TABLES
347
Table 25.-Velocity of water, v, in feet per second, based on
co
.00055
1.486
Manning's formula v= r2/3g1/2
n
n=.013—Continued



.00060.00065.00070.00075.00080.00085.00090.00095 | .00100
0.92
0.96 1.00 1.03 1.07 1. 11
1. 14
1. 17
1.20
1.24
1.46
1.52 1.58
1.64
1.70
1.76
1.81
1.86
1.91
1.96
1.91
1.99
2.07
2. 15
2.23
2.30
2.37
2.44
2. 51
2.57
2.31
2.41
2.51
2. 61
2.70
2.79
2.87
2.96
3.04
3. 12
1,0
2.68
2.80
2.91
3.02
3. 13
3. 23
3.33
3.43
3.52
3.61
1.2
3.03
3.16
3. 29
3.42
3. 54
3. 65
3.76
3.87
3.98
4.08
1.4
3. 35
3.50
3.65
3.78
3.92
4.05
4. 17
4. 29
4. 41
4. 52
1.6
3. 67
3.83
3.99
4. 14
4. 28
4.42
4. 56
4. 69
4.82
4.94
1.8
3.97
4. 14
4. 31
4. 48
4. 63
4. 78
4.93
5. 07
5. 21
5.35
2.0
4. 26
4. 44
4. 63
4.80
4.97
5. 13
5. 29
5. 44
5.59
5.74
2.2
4.53
4.74
4.93
5. 12
5.30
5. 47
5. 64
5.80
5.96
6. 11
2.4
4. 81
5. 02
5. 22
5. 42
5. 61
5.80
5.97
6. 15
6.32
6.48
2.6
5.07
5. 29
5. 51
5.72
5.92
6. 11
6.30
6.48
6.66
6.83
2.8
5.33
5. 56
5.79
6. 01
6. 22
6. 42
6.62
6. 81
7.00
7. 18
3.0
5.58
5.82
6.06
6. 29
6. 51
6. 73
6.93
7. 13
7.33
7.52
3.2
5.82
6.08
6.33
6.57
6.80
7.02
7.24
7.45
7.65
7.85
3.4
6.06
6.33
6. 59
6.84
7.08
7.31
7.54
7.75
7.97
8. 17
3.6
6.30
6. 58
6.85
7.10
7.35
7.59
7.83
8.05
8. 28
8.49
3.8
6. 53
6.82
7.10
7.36
7.62
7.87
8. 12
8.35
8.58
8.80
4.0
6.76
7.06
7.34
7.62
7.89
8. 15
8.40
8.64
8.88
9.11
4.2
6.98 7.29
7.59
7.87
8. 15
8.42
8.68 8.93
9.17
9. 41
4.4 7.20
7.52
7.83
8. 12
8. 41
8.68
8.95
9.21
9.46
9.71
4.6
7.41
7.74
8.06
8.36
8.66
8.94 9.22 9.48
9.74
10.00
4.8
7.63
7.97
8. 29
8.61
8.91
9.20
9.48 9.76
10.03
10.29
5.0
7.84
8. 19
8.52
8.84
9. 15
9.45
9.74
10.03
10.30
10.57
5.2
8.05
8.40
8.75
9.08
9.40
9.70
10.00
10. 29
10. 57
10.85
5.4
8.25
8.62
8.97
9. 31
9.64
9.95
10. 26
10.56
10. 84
11. 13
5.6 8.45
8.83
9. 19
9.54
9.87
10. 20
10. 51
10.81
11. 11
11.40
5.8
8.65
9.04
9. 41
9.76
10. 11.
10. 44
10.76
11.07
11. 37
11.67
6.0 8.85
9.25
9.62
9.99 ❘ 10.34
10.68
11.00
11. 32 | 11. 63
11.94
6.2 9.05
9.45
9.84
10. 21
10. 56
10.91
11. 25
11.57
11.89
12. 20
6.4 9.24
9. 65
10.05
10.43
10.79
11. 14
11.49
11.82
12. 14
12.46
6.6
9.43
9.85
10. 25
10.64
11. 01
11.38
11.73
12.07
12.40
12.72
6.8
9.62
10.05
10. 46
10.86
11. 24
11. 60
11.96
12.31
12. 65
12.97
7.0
9.81
10. 25
10.66
11.07
11. 46
11.83
12. 20
12.55
12.89
13. 23
7.5
10. 27
10. 73
11. 17
11. 59
11.99
12. 39
12. 77
13. 14
13.50
13.85
8.0
10.72
11.20
11. 66
12. 10
12.52
12. 93
13. 33
13.72
14.09
14. 46
8.5
11. 17
11.66
12. 14
12. 60
13.04
13.47
13.88
14. 28
14.67
15.06
9.0
11.60
12. 11
12. 61
13. 09
13. 54
13.99
14.42
14.84
15. 24
15. 64
9.5 12.02
16. 21
12. 56
15.80
13.07
15. 38
13.57 14.04
14.95
14.50
348
HYDRAULIC TABLES
Table 25.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.013—Continued


.0010
.0015
.0020
.0025
.0030 .0035
.0040
.0045
.0050
T
0.2
1.24
1.51
1.75
1.95
2. 14
2.31
2.47
2.62
2.76
0.4
1.96
2.40
2.78
3. 10
3.40
3.67
3.92
4. 16
4.39
0.6
2.57
3. 15
3.64
4.07
4.45
4.81
5. 14
5.45
5.75
0.8
3. 12
3.82
4.41
4.93
5.40
5.83
6. 23
6.61
6.97
1.0
3.61
4.43
5. 11
5.72
6.26
6.76
7.23
7.67
8.08
1.2
4.08
5.00
5.77
6.45
7.07
7.64
8.16
8.66
9. 13
1.4
4.52
5. 54
6.40
7.15
7.84
8.46
9.05
9.60
10. 12
1.6
4.94
6.06
6.99
7.82
8.56
9.25
9.89
10.49
11.06
1.8
5.35
6.55
7.56
8.46
9.26
10. 01
10.70
11.35
11.96
2.0
5.74
7.03
8.11
9.07
9.94
10. 73
11.48
12.17
12.83
2.2
6. 11
7.49
8.65
9.67
10.59
11. 44
12.23
12.97
13.67
2.4
6.48
7.94 9.16
10.25
11.22
12. 12
12.96
13.75
14.49
2.6
6.83
8.37
9.67
10.81
11.84
12. 79
13.67
14.50
15. 28
2.8
7.18
8.79
10. 16
11.35
12. 44
13.43
14.36
15. 23
16.06
3.0
7.52
9.21
10.63
11.89
13.02
14.07
15.04
15.95
16.81
3. 2
7.85
9.61
11.10 12.41
13.60
14.69
15.70 16.65
17.55
3.4
8.17
10. 01
11.56
12.92
14. 16
15.29
16.35 17.34
18.28
3.6
8.49
10.40
12.01
13.42
14.71
15.88
16.98 18.01
18.99
3.8
8.80
10.78
12.45
13.92
15. 25
16.47
17.60
18.67
19.68
4.0
9.11
11. 16
12.88
14.40
15.78
17.04
18. 22
19.32
20.37
4.2
9.41
11.52
13.31
14.88
16.30
17.60
18.82
19.96
21.04
4. 4
9.71
11.89
13.73
15.35
16.81
18. 16
19.41 20.59
21.70
4.6 10.00
12.25
14. 14
15.81
17.32
18.70
20.00
21.21
22.36
4.8
10.29
12.60
14.55
16.26
17.82
19. 24
20.57
21.82
23.00
KO V KO KO NG
5.0
5. 2
5.4
5.6
5.8
20 -- 1 20
10.57
12.94
14.95
16.71
18.31
19. 77
21. 14
22.42
23.63
10.85
13.29
15.34
17. 15
18.79
20.30
21.70
23.02
24.26
11. 13
13.63
15,73
17.59
19. 27
20.81
22.25
23.60
24.88
11.40
13.96
16. 12
18.02
19. 74
21.33
22.80
24. 18
25.49
11.67
14. 29
16.50
18. 45
20. 21
21.83
23.34
24.75
26.09
6.0
11.94
14.62
16.88
18.87
20.67
22.33
23.87
25.32
26.69
6. 2
12. 20
14.94 17.25
19.29 21.13
22.82
24.40
25.88
27.28
6.4
12.46
15. 26
6.6
12.72
15.58
6.8 12.97
15.89
17.62 19.70
17.99 20.11 22.03
18.35 20.51 22.47
21.58
23.31
24.92
26.43
27.86
23.79
25.44
26.98 28.44
24. 27
25.95
27.52 29.01
7.0 13.23 16.20 18.71
20.91
22.91
24.75
26.45 28.06 29.58
7.5
13.85 16.96 19.59
21.90
23.99
25.91
27.70 29.38
30.97
8.0
14.46
17.71 20.45 22.86
25.04
27.05
28.92
30.67
32.33
8.5
15.06
18.44
21.29 23.80
26.08
28. 17
30.11
31.94
33.66
9.0
15. 64
19. 16
22.12 24.73
27.09
29.26
31.28
33. 18
34.97
9.5
36.26
16. 21
34.40
19.86
32.43
22.93 25.64
30.33
28.08
HYDRAULIC TABLES
349
Table 25.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
-.013-Continued

.0055
.0060 0065 .0070
.0075 0080 0085
.0090
.0095.0100
0.2
2.90
3.03
3.15 3.27
3.39
3.50 3.60
3.71
3.81
3.91
0.4
4.60
4.81
5.00
5.19 5.37
5.55
5.72
5.89
6.05
6. 21
0.6 6.03 6.30
6.56
6.80
7.04
7.27
7.50
7.71
7.93
8.13
0.8
7.31
7.63
7.94
8.24
8.53
8.81
9.08
9.35
9.60
9.85
1.0
8.48
8.85
9.22
9.56
9.90
10. 22
10. 54
10.84
11. 14
11.43
1.2
9.57
10.00
10.41
10.80
11. 18
11.55 11.90
12.25
12.58
12.91
1.4
10. 61
11.08
11.53
11.97
12.39
12. 79 |
13. 19 |
13. 57
13.94
14.31
1.6
11.60
12.11
12. 61
13.08
13. 54
13.99
14. 42
14.83
15. 24
15.64
1.8
12.54
13. 10
13.64
14. 15
14. 65
15. 13
15.59
16.05
16. 49
16.91
2.0
13.46
14.06
14.63
15. 18
15.71
16.23
16.73
17.21 17.69
18.15
2.2 14.34 14.98
15.59
16. 18
16.75
17.29
17.83
18.34 18.85
19.34
2.4
15.20
15.87
16. 52
17.14
17.75
18.33
18.89
19.44 19.97
20.49
2.6 16.03
16.74
17. 43
18.08
18.72
19.33
19.93
20.50 | 21.07
21.61
2.8
16.84
17.59
18.31
19.00
19.67
20.31
20.94
21.54
22. 13
22.71
3.0
17.63
18.42
19.17
19.89 | 20.59
21.27
21.92
22.56
23.17
23.78
3.2
18. 41
19.23
20. 01
20.77 | 21.50
22.20
22.89
23.55
24. 19
24.82
3.4
19.17
20.02
20.84
21.62
22.38
23.12 23.83
24.52
25. 19
25.85
3.6
19.91
20.80
21.65
22.46
23. 25
23.25
24.02❘ 24.75
25.47
26.17
26.85
3.8
20. 64
21.56
22.44
23. 29
24. 11
24.90 25.66
26. 41
27.13
27.84
4.0
21.36
22.31
23. 22
24.10 24.94
25.76
26.56
27.33
28.07
28.80
4.2
22.07
23.05
23.99
24.90❘ 25. 77
26.61
27.43
28.23 29.00
29.76
4.4
22.76
23.77
24.75
25.68 | 26, 58
27.45
28.30
29.12 | 29.92
30.69
4.6
23.45
24.49 | 25. 49
26.45 27.38
28.28
29. 15
29.99 30.82
31.62
4.8
24. 12
25. 19
26. 22
27.21 28.17
29.09
29.99
30.86
31.70
32. 53
5.0
24.79
25.89 26.95
27.96 | 28.95 | 29.90
30.82
31. 71 32.58
33.42
5.2
25. 44
26.58 27.66
28.71 | 29. 71 | 30.69
31.63
32. 55 | 33. 44
34.31
5.4
26.09
27.25 28.37
29.44 | 30.47
31.47
32.44
33. 38 | 34.29
35. 18
5. 6
26.73
27.92 29.06
30.16 | 31. 22
32. 24
33.23
34. 20 | 35. 13
36.05
5.8
27.37
28.58 29.75
30.87 | 31.96
33.00
34.02 | 35. 01
35.01 35.97
36.90
6.0
27.99
29. 24
30.43
31.58
32.69
33.76
34.80
35.81 36.79
37.74
6.2
28. 61
29.88
31.10 32.28
33. 41
34.50 35.57
36.60 | 37.60
38.58
6.4
29.22
30.52
31.77 | 32.97 | 34. 12
35.24
36.33
37.38 38.41
39.40
6.6
29.83
31. 15
32. 43
33.65 | 34.83
| 35.97 37.08
38.16 39.20
40.22
6.8
30.43
31.78
33.08
34.33
35. 53
36.70
36.70 | 37.83
38.92 39.99
41.03
7.0 31.02
32.40
33.72
35.00
36. 22
37.41
38.56
39.68
40.77
41.83
7.5 32.48
33.93 35. 31 36.64 37.93
39.17
40.38
41.55
42.69
43.80
8.0
33.91 35.42
8.5 35.31 36.88
9.0 36.68 38.31
36.86 | 38.25 | 39.60
40.90
42. 15
43.38
44. 57
45.72
38.38 39.83 41.23
39.87 41.38
42.58
43.89
45. 17
46.40
47.61
42.83
44. 24
45. 60
46.92
48. 21
49.46
9.5
51.27
38.03 39.72
48.64 49.98
41.34 42.90
44.40 45.86 | 47.27
350
HYDRAULIC TABLES
Table 25.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3 s1/2
n
n=.013-Continued

Co
$
.01
.02
.03
.04
.05
:06
.07
.08
.09
.10
0.2
3.91
5.53
6.77
7.82
8.74 9.58 10.34
11.06
11.73
12.36
0.4
6. 21
8.78
10.75
12. 41
13.88
15.20 16.42 17.55 18.62
19.62
0.6
8.13
11.50
14.08
16.26
18.18
19.92
21.51 23.00 24.39
25.71
0.8
9.85
13.93 17.06
19.70
22.03
24. 13
26.06 | 27.86 | 29.55
31. 15
1.0
11.43
16.17 19.80
22.86
25.56
28.00
30.24
32.33
32.33 34.29
36.15
1.2 12.91
1.4 14.31 20.23
18.25
22.36 25.82
28.86
31.62
34. 15
34. 15
36.51 38.72
40.82
24.78 | 28.61
31.99
35.04
37.85
37.85
40.46 | 42.92
45. 24
1.6 15.64 22.11 27.08 31.27
34.97
38.30
41.37
44.23 46.91
49.45
1.8
16.91
23.92
29.30 33.83
37.82
41.43
44.75
47.84 | 50.74
53.49
2.0
18.15
25.66
31.43 | 36.29
40.57
44. 45
48.01
51.32 54.44
57.38
2.2
19.34
27.34
33.49 | 38.67
43. 24
47.36
51.16
54.69
58.01
61. 14
2.4
20.49
28.98
35.49 | 40.98
45.82
50.19
54. 21
57.96
61.47
64.80
2.6 21.61
30.57
37.44
37.44 | 43.23
48.33
52.94
57.18
61.13 64.84
68.35
2.8 22.71
32.11
39.33
45. 42
50.78
55.62
60.08
64.23
68.12
71.81
3.0
23.78
33.63
41.18 47.55
53.17
58.24
62.91 67.25
71.33
75. 19
3.2 24.82
35.10
42.99 | 49.64
55.50
60.80 65.67 70.21
74.47
78.50
3.4 25.85
36.55
44.77 51.69
57.79
63.31
68.38
73.10 77.54
81.73
3.6
26.85 37.97 46.51 53.70
60.04
65.77
71.04
75.94 | 80.55
84.91
3.8
27.84
39.37 48.21 55.67
62.24
68. 18
73.65
78.73 83.51
88.02
4.0 28.80
40.73
49.89 | 57.61
64.41
70.55
76.21
81.47
86.41
91.09
4.2
29.76
42.08
51.54 59.51
66.54
72.89
78.73
84.16
89. 27
94.10
4.4 30.69
43.41
53.16 61.39 68.63
75. 18
81. 21
86.81
92.08
97.06
4.6 31.62
44.71
54.76 | 63.23 | 70.70
77.44
83.65
89.43 94.85 99.98
4.8
32.53
46.00
56.34 65.05 | 72.73
79.67
86.06
92.00 97.58
102.86
5.0
33.42
47.27
57.89 66.85 74.74
81.87
88.43
94.54 100. 27
105.70
5.2
34.31
48.52
59.43 | 68.62 | 76.72
84.04
90.77
97.04 102.93
108.50
5.4
35. 18
5.6
36.05
5.8 36.90
49.76 60.94 70.37 78.67
50.98 62.43 | 72.09
52.18 63.91 73.80
86.18
93.09 99.51 105.55
111.26
80.60
88.30
95.37 101.96 108.14
113.99
82.51
90.39
97.63 104.37 110.70
116.69
6.0
37.74
53.38 65.37 75.49 84.40
92.45
99.86 106.75 113. 23
119.36
6.2
38.58 54.56 66.82
77.16
86.26
6.4
39.40
55.72 | 68.25
78.81
88.11
6.6 40.22
56.88 69.66
80.44
89.93
6.8
41.03 58.02 71.06
82.06
94.50 102.07
96.52 104. 25
98.52 106. 41
91.74 100.50 108.55
109. 11
115.73
121.99
111. 45
118. 21
124.60
113.76 120.66
127. 19
116.04 |123.08
129.74
7.0 41.83 59.15 72.45
7.5 43.80 61.94 75.86
8.0 45.72 64.66 79.19
8.5 47.61 67.33 82.46
9.0 49.46 69.94 85.66
83.66
87.60
93.53 102.46 110. 67
97.93107.28 115.88 123.88
118.31
125. 49
132. 27
131.39
138.50
91.45 102.24 112.00
120.97
129. 32
137. 17
144. 59
95. 22 106.46 116. 62
98.92 110.59 121. 15
125.96
134. 66
142.83
150. 55
130. 85
139. 89
148.37
156.40
9.5
162. 14
51.27
72.51 88.81 102.55 114. 65 125. 59 135. 66 145.02 153.82
HYDRAULIC TABLES
351
Table 25.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/3 s1/2
8
n=.013—Continued

.00005 .00010 .00015 .00020.00025 .00030.00035.00040.00045 00050
|
47
2I221 49202 8*2** ***AR AMAM* --~88 ***** 49509
222
10
3.75
5.31
11
4.00
5.65
4. 24
5.99
13
4. 47
6.32
14
4.70
6. 64
8.13
6.50 7.50 8.39 9.19 9.93 10.61 11.26
6.92 8.00 8.94 9.79 10.58 11.31 11.99
7.34 8.47 9.47 10.38 11.21 11.98 12.71
7.74 8.94 9.99 10.95 11.82 12.64
9.39 10.50 11.50
11.86
12. 64
13.40
13.41
14.13
12.42 13.28
14.09
14.85
15 4.92
6.95
8.51
9.83
10.99
12.04
13.01 13.90
14.75
15. 55
16 5.13
7.26
8.89
10. 26
11.48
12.57
13.58 14.52
15.40
16.23
17
5.34
7.56
9.26
10.69
11.95
13.09
14.14
15.11 16.03
16.90
18
5. 55
7.85
9.62
11. 10
12.41
13.60
14.69 15.70 16.65
17.56
19
5.76
8.14
9.97
11. 51
12.87
14. 10
15.23
16.28 17.27
18.20
20
5.96
8.42
10.32 | 11.91
13.32
14.59
15.76 16.84
17.87
18.83
21
6.15 8.70 10.66
12.30
13.76
15.07
16. 28
17.40
18.46 19.46
22
6.35 8.97
10.99
12. 69
14. 19
15.54
16.79
17.95 19.04
20.07
24
23 6.54
6.73
9.24 11.32
13.07
14.62
16.01
17.30 18.49 19.61
20.67
9.51
11.65
13.45 |
15.04
16.47
17.79 19.02
20.18
21.27
25
6. 91
9.77 11.97
13.82 15.45
16.93
18.28 19.55 20.73
21.85
26
7.09
10.03 | 12.29
14.19
15.86
17.38
18.77 20.06
21.28
22.43
27
7.27
10.29 12.60
14.55
16. 27
17.82
19.25❘ 20.58
21.82
23.00
28
7.45 10.54 12.91 14.91
16. 67
18. 26
19.72 21.08
22.36
23.57
29
7.63
10.79
13.21 15.26
17.06
18.69
20.19
21.58
22.89
24. 13
30
7.80
11.04
13. 52
15.61
17.45
19.12 | 20.65
22.07
23.41
24.68
31
7.98 11.28
13.82
15.95
17.84
19.54 | 21.10
22.56
23.93
25. 22
32 8.15 11.52
14. 11
16.29
18. 22
19.96 21.55
23.04
24.44
25. 76
33 8.32 11.76
34 8.48
14.40
16.63
18.59
20.37 | 22.00
23.52 24.95
26.30
12.00
14.69
16.97
18.97
20.78
20.78 22.44
23.99
25.45
26.83
35 8.65
12. 23
14.98
17.30
19.34
21.18 22.88
24.46
25.95
27.35
36
8.81
12.46
15. 26
17.62 19.71
21.59
23.32
24.93 26.44
27.87
37
8.97
12.69
15.54
17.95 20.07 21.98
23.75
25.38 26.92
28.38
38
9.14
12.92
15.82
18.27 20.43
22.38
24. 17
25.84
27.41
28.89
39 9.30
13. 15
16.10
18. 59
20.79
22.77
24.59
26. 29
27.89
29.39
40
9.45
13.37
16. 37
18.91
21.14
23.16
25. 01
26.74
28.36
29.90
41 9.61 13.59
16. 65
19.22 21.49
23.54
25.43
27.18
28.83
30.39
42 9.77
13.81
16.92
19.53
21.84
23.92 | 25. 84
27.62 29.30
30.88
43
9.92
14.03
17. 18
19.84
22. 18
24.30
26. 25
28.06
29.76
31.37
44 10.07
14. 25
17.45
20.15 | 22.53
24.68
26.65
28.49
30. 22
31.86
46
10.23
10.38 14.68
14.46 17.71
20.45 22.87
25.05
25.05
27.06
28.92
30.68
32. 34
17.97
20.75 23.20
25.42
27. 45
29.35 31.13
32. 81
10.53
14.89
18. 23 21.05 23.54 25.79 |
27.85
29.77
31.58
33. 29
48 10.68 15. 10
18.49
21.35 | 23.87 | 26. 15
28. 24
30. 19
32.03
33.76
10.82
15.31
18.75 21.65
24. 20❘ 26, 51
28.64
30.61
32.47
34.23
50
34.69
10.97
31.03 32.91
15.51
29.02
19.00 21.94
24.53 26.87
352
HYDRAULIC TABLES
Table 25.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/3g1/2
8
n=.013-Continued

.00055 .00060.00065 | .00070 | .00075 | .00080 | .00085 | .00090 | .00095 | .00100
10
12.44
13.00 13. 53 14.04 14.53
15.01
11
13. 26
13.85
14.41
14.96
15.48
15.99
15.47 15.92 16.35 16.78
16.48 16.96 17.43 17.88
12
14.05
14.68
15. 28
15.85
16. 41
16.95
17.47 17.97
18.47 18.95
13 14.82
15.48
16. 11
16.72
17.31
17.88
18.43 18.96
19.48
19.99
14
15.57
16.26
16.93
17.57
18. 18
18.78
19.36 19.92 20.47
21.00
15
16.30
17.03
17.73
18.39
19.04
19.04
19.66 20.27 | 20.86 | 21.43
21.99
16
17.02
17.78
18.50
19.20
19.88
20.53 | 21. 16
21.77
22.37
22.95
17 17.72
18.51
19. 27
20.00
20. 70
21.38 22.03
22. 67
23. 29
23.90
18
18.41
19.23
20.02
20.77
21.50
22. 21 22.89
23.55
24. 20
24.83
19 19.09
19. 94
20.75
21.53
22.29
23.02 | 23.73
24.42
25. 09
25. 74
A2222 2R^AR AMA** *888* ***** *****
20
19.75
20.63
21.47
22.28
23.07
23.82
24.55
25. 27
25.96
26.63
21
20.40 21.31
22. 18
23.02
23. 83
24. 61
25. 37
26.10
26.82
27.51
21.05
21.98
22.88
23.75
24.58
25.38
26. 17
26.92
27.66
28.38
23
21.68
22.64
23.57
24. 46
25.32 | 26. 15 | 26.95
27.73
28.49
29.23
24
22.30
23.30
24.25
25. 16
26.05 26.90
27.73
28.53
29. 31
30.08
25
22.92
23.94
24.92
25.86
26.76 | 27.64
28.49
29.32
30.12
30.91
26
23. 53
24.57
25.58
26.54
27.47
28.38
29.25
30. 10
30.92
31.72
27
24. 13
25.20
26. 23
27.22
28. 17
29. 10
29.99
30.86
31.71
32.53
28
24.72
25.82
26.87 27.89
28.87
29.81
30.73
31.62
32. 49
33.33
25.30
27.02
27.58
28. 13
29
30 25.88 27.03
31 26.45
32
34
26. 43
27.51 | 28.55
29.55
30.52
30.52 |
31. 46
32.37
33. 26
34. 12
28. 14
29.20
30.22
31. 22
32. 18
33.11
34.02
34.90
27.63
28.76
29.84
30. 89
31.91
32.89
33.84
34. 77
35. 67
28. 22
29.37
30.48
31.55
32.59
33.59
34.56
35.51
36.43
28.81
29.98
31. 11
32. 21
33.26
34. 29
35. 28
36.25
37.19
29.39
30.59
31.74
32.85
33.93
34.98
35.99
36.98
37.94
28.68
29.96 31.18
32.36
33.50
34.59
35.66
36.69 37.70
38.68
36
29.23
30.53 31.77 32.97
34. 13
35.25
36. 33
37.39
38.41
39. 41
37
29.77
31.09 32.36 | 33. 58 |
34.76
35.90
37.00
38.08
39.12
40.14
30.30
31.65
32.94 34. 18
35. 38
36.54 37.67 38.76 39.82
40.86
30.83
32. 20
33.52
34,78
36.00
37.18 | 38, 33 | 39. 44
| 40.52
41.57
40 31.35 32.75
34.09 35.37
36.61
37.81
38.98
40. 11
41. 21
42.28
41
31.87 33.29
34.65
35.96
37.22
38.44
39.63
40.77
41.89
42.98
42 32.39 33.83
35. 21
36. 54
37.82 39.06
40.27
41.43
42.57
43.68
43
32.90 34.37
35.77
37.12
38.42 | 39.68
40.90
42.09 | 43. 24
44.37
44
33.41 34.90 36.32 37.69
39.02
39.02 | 40.30
40.30
41.54
41.54
42.74 | 43.91
45.05
45 33.92 35.42
36.87 38.26 39.60
39.60 40.90
42. 16 | 43.38 | 44. 57
45.73
46 34.42 35.95 37.41 38.83 40.19 41.51
42.78 44.03
45. 23
46.41
47
34.91
48
35. 41
35.90
36.47 37.95 39.39
39.39 40.77
36.98
38.49 39.94 41.35
37.49 39.02 40.50
40.50 41.92
41.92
42.11
43.40
44.66
45.88
47.08
42.70
44.02
45. 29
46. 53
47.74
43. 29
43.29
44.63 | 45.92 | 47.18
48.40
50 36.38 38.00 39.55 49.06
41.05
41.05
42. 49
42. 49 | 43.88 | 45. 23 46.54 47.82
HYDRAULIC TABLES
353
Table 25.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.013—Continued



8
.0010
.0015
.0020
.0025 .0030 .0035 .0040
.0045
.0050
10
16.78
20.55
23.73
26.53
29.06 31.39 33.56
35.59 37.52
11
17.88
21.90
25. 28
28.27
30.97
33.45
35.76
37.93
39.98
12 18.95 23.20
26.79
29.96
32.82
35.45
37.89
40. 19
42.37
13
19.99 24.48
28.26
31.60
34.62
37.39
39.97
42.39
44.69
14
21.00 25.72
29.69
33. 20
36.37
39.28
41.99
44.54
46.95
15
21.99
26.93
31.09
34.76
38.08
41. 13
43.97
46.64
49. 16
16
22.95
28.11
32. 46
36.29
39.75
42.94
45.90 48.69
51.32
17
23.90
29.27
33.80
37.79
41.39
44.71
47.80
50.70
53.44
18
24.83 30.41
35. 11
39.25
43.00
46.45
49.65
52.67
55.51
19
25.74
31.52
36.40
40.70
44.58
48. 15
51.48
54.60
57.55
21
37
41
27232 R2222 A---- --538 97*&&#
20
26.63 32.62
37.67
42. 11
46. 13
49.83
53.27
56.50
59.55
27.51
33.70
38.91
43.50
47.66
51.47
55.03
58.37
61.52
28.38 34.76
40. 14
44.87
49.16
53. 10
56.76
60.20 63.46
29.23
35.80
41.34
46. 22
50.64
54.69
58.47
62.02
65.37
24
30.08 36.84
42. 53
47.55
52.09
56.27
60. 15
63.80
67.25
25
30.91
37.85
43.71
48.87
53.53
57.82
61.81
65.56
69. 11
26
31. 72
38.85
44.86
50. 16
54.95
59.35
63.45 67.30
70.94
27
32. 53
39.84
46.01
51.44
56.35
60.86 65.07
69.01
72.74
28
33.33
40.82
47.14
52.70
57.73
62.36 66.66
70.71
74.53
29
34. 12
41.79
48. 25
53.95
59. 10
63.83
68.24
72.38
76.29
30 34.90 42.74
49.36
55. 18
60.45
65.29
69.80
74.03
78.04
31 35.67 43.69
32 36.43 44.62
33 37.19 45.55
50.45
56.40
61.78
66. 73
71.34
75.67
79.76
51. 53
57.61
63. 11
68. 16
72.87
77.29
81.47
52.59
58.80
64.41
69.57
74.38
78.89 83.16
34 37.94 46.46
53.65
59.98
65. 71
70.97
75.87
80.48
84.83
38.68
47.37
54.70
61. 15
66.99
72.36
77.35
82.05
86.48
36
39.41
48.27
55.73
62.31
68.26 73.73
78.82
83.60
88.12
40. 14
49. 16
56.76
63.46
69.52 75.09
80.27
85. 14
89.75
40.86
50.04
57.78
64.60
70.77
76.44
81.71
86.67
91.36
39
41.57
50.91
58.79
65. 73
72.00
77.77
83. 14
88. 18
92.95
40 42.28 51.78 59.79
66.85
73.23
79.10
84.56
89.69
94.54
42.98 52.64
60.78
67.96
74.44
80.41
85.96
91. 17
96.11
42 43.68 53.49 61.77
69.06
75.65
81. 71
87.35
92.65
97.66
43
44.37
54.34
62.74
70. 15
76.84
83.00
88.73
94.12
99.21
44
45.05
55. 18
63.71
71. 23
78.03
84.28
90.10
95.57
100. 74
45
45.73 56.01
64.67
72.31 79.21
85.56
91.46
97.01
102.26
46
46.41 56.84 65.63
73.38
80.38
86.82
92.81
98.44
103.77
47
47.08 57.66 66.58 74.44
48 47.74 58.47 67.52
49 48.40 59.28 68.45
81.54
88.07
94. 15
99.87
105. 27
75.49 82.69
89.32
95.48
101.28
106.75
76.53 83.84
90.55
96.81
102.68
108. 23
50 49.06 60.09
109.70
69.38 77.57 84.97
98.12 104. 07
91.78
354
HYDRAULIC TABLES
Table 25.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.013-Continued

.0055
.0060
.0065
.0070 .0075 .0080 .0085
.0090
.0095
.0100
10
12
13
18
20
21
23
26
27
28
PIRRI 2*=*= 222** *22*2 A*88* ---** ***** 49598 8
39.35
41.10 42. 78
11
41.93
43.79
45.58
44.39
47.30
45.95 47.46 48.92
48.96 50.57
50.33
51.71
53.06
52.13
53.64
55. 11
56.54
44. 43
46.41 48.30 50.13 51.89
53.59
55. 24
56.84
58.40
59.91
46.87
48.95 50.95
52.88
54.73
56.53
58.27
59.96
61.60
63.20
14 49.24
51.43
53.53
55. 55
57.50
59.39
61.22 | 62.99
64.72
66.40
15 51.56
53.85
56.05
58.17
60.21
62.18
64.10
65.96 67.76
69.52
16 53.83
56.22
58.52
60.73
62.86 64.92
66.92
68.86 | 70.74
72.58
17
56.05 58.54 60.93
63.23
65.45
67.60
69. 68
71.70 73.66
75.57
58.22
60.81
63.30
65. 69
67.99 70.22
72.38
74.48 | 76. 52
78.51
19 60.36
63.05 65.62
68.10
70.49 | 72.80 |
75.04 | 77.21 79.33
81.39
62.46
65. 24
67.90
70.47
72.94
75.33
77.65
79.90 | 82.09
84.22
64.53
67.40
70.15
72.80
75.35
77.82
80. 22
80.22 |
82. 54 84.80
87.01
66. 56
68.56
69.52
72.36 75.09
77.72 80.27
82.74 85. 14
87.48
89.75
71.61
74.53
77.35
80.06 | 82.69 |
85.23 | 87.70 | 90. 11
92.45
24 70.53
25 72.48 75.70 78.79
73.67 76.68
79.57
82.37 85.07
87.69 | 90.23 | 92.70
95. 11
81.77
84.64 87.41
90.10 | 92.72 | 95. 26
97.73
74.40 77.71 80.88
83.93
86.88 | 89.73
92.49
95. 17 97.78
100. 32
76.30
79.69 82.94
86.07
89.09
92.02
94.85
97.60 100. 27
102.88
78.17
81.64 84.98 88.19
91.28
94.27
97. 18
99.99 102. 73
105.40
29 80.02 83.58 86.99 90.27
93.44
96. 51
99.48
102.36
105. 16
107.90
30
32
81.85 85.49 88.98 92.34
31 83.66 87.38 90.94 94.38
85.45 89.25 92.89
33 87.22 91.09 94.81
95.58 98.71 101.75 104. 70
107.57
110.36
97.69 100.89 104.00
107.01
109.95
112.80
96.40 99.78 103.05
106. 22
109. 30
112.30
115. 21
98.39 101.85 105. 19
108. 42
111.57
114. 63
117.60
34
88.97
92.93 96.72 100.37 103.89
107.30
110. 60
113.81
116. 93
119.97
35
90.71
94.74 98. 61
102. 33
105. 92
109. 40
112.76
116.03
119. 21
122. 31
36
92.43
96.54 100. 48
104. 27
107.93
111. 47
114.90
118. 23
121. 47
124.63
37
94.13
98.31 102. 33
106. 19
109. 92
113. 52
117.02
120.41
123.71
126.92
38
95.82 | 100.08 104.16 108. 10
111.89
115. 56
119. 12
122. 57
125. 93
129.20
39
97.49
101.83 105.98 109.99
113.85
117.58
121.20
124.71
128. 13
131.46
40 99.15 103.56 107.79 111.86 115.78
41 100.80 105.28 109. 58 113. 71
42 102.43 106.98 111.35 115. 56
119.58 123.26
126.83
130. 31
133.70
117.71
121.57
125. 31
128.94
132. 47
135.91
119.61
123. 53
127.34
131.03 134. 62
| 138.12
43
104.05 108.68 113.11 117.38
121.50
125.49
129. 35
133. 10136. 75
140.30
44105.66
110.35 114.86 119. 20
123. 38
127.43
131. 35
135. 15
138. 86
142. 47
45 107.25 112.02 116.59 120.99
125. 24
129. 35
133.33
137. 20
140.95 | 144. 62
46108.83
47110.40
113.67 118.31 122. 78
127.09
131.26
135. 30
139. 22
143. 04
146.75
115.31 120.02 124. 55
128.93
133.15
137. 25
141.23
145. 10
148.87
48
111.97 116.94 121.72 126. 31
130.75
135. 04
139. 19
143. 23
147. 15
150.97
49 113.52
118.56 123. 40
128. 06
132. 56
136. 90
141. 12
145. 21
149. 19 | 153.06
50 115.05
120.17 125. 08 129.80 134. 35 138.76 143. 03 147.18 151. 21
155. 14
HYDRAULIC TABLES
355
Table 25.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.013-Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
13
HIRRI
10
53.06
11
56.54
12
59.91
63.20
14
66. 40
75.03 91.90 106.11 118. 64
79.96 97.93 113.08 126. 42
84.73 103.77 119.83 133.97
89.38 109.46 126.40 141. 32
93.90 115.01 132.80 148. 47
138. 49
129.96 140.38 150.07 159.17 167. 78
149.58 159.91 169.61| 178.79
146.76
158. 52
169.46 179.74 189.47
154. 80
167.21
178. 75
189. 59 199.85
162. 64
175. 67
187.80
199. 20
209.97
15
69.52
98.32 120.42| 139.05
155.46
170.30
183.94
196. 64
208. 57
219,85
16
72.58
102.64 125. 71 145. 16
162.30 177.79
192. 03
205. 29
217.74
229. 52
17
75.57
106.88 130.90 151.15 168.99
185. 12
199, 95
213. 76
226, 72
238.99
18
78.51
111.03 135.98 157.02
175. 55
192. 31
207. 72
222. 06
235. 53
248. 27
19
81.39
115.10 140.97 162. 78
182.00
199. 37
215. 34
230. 21
244.17
257.38
20
84.22
119.11 145.88 168. 45
188. 33
206.30 222.83 238. 22
252.67
266. 34
21
87.01
123.05 150.70
174. 01|
194. 55
213.12 230.20 246.09
261. 02
275. 14
22
89.75
126.92 155. 45
179. 50
200.68
219.84 237.45 253.85 269. 24
283.81
23
92.45
130.74 160.12
184.89
206. 72
226. 45 244.59 261.48
277.34 292.34
24
95. 11
134. 50
164. 73
190. 22
212. 67
232.97
251. 63
269. 01
285. 32
300.76
25
97.73
138.21
169. 28
195.46
218. 53
239.39
258.57
276.43
293. 20
309. 05
26
100. 32
141.88 173. 76
200. 64
224. 32
245. 73
265. 42
283. 75
300. 96
317.24
27
102.88
145. 49
178. 19
205. 75
230.04
252. 00
272. 19
290.98
308. 63
325. 33
28
105.40
149.06 182. 56
210.80
235. 69
258. 18
278.87
298. 12
316. 21
333. 31
29
107.90
152.59 186.88
215.79| 241.26
264.29| 285.47
305.18
323. 69
341.20
30
110.36
156.08 191.15 220.73
246.78
270.33] 291.99
312.15] 331.09 349.00
31
112.80
159.53 195. 38
225. 60
252. 23
276. 31
298. 45
32
115. 21
162.94 199. 56
230. 43
257.63
282. 22
304.83
319. 05 338. 41 356.71
325.88 345.64 364.34
33
117.60
166. 32
203. 69
235. 21
262. 97
288. 07
34
119.97
169.66 207.79
239.93
268.25
293. 86
35
122. 31
36
124. 63
37
126.92
38 129.20
39 131.46
332. 63 352.81 371.89
339. 32 359.90 379.37
172.97 211.84 244. 62 273.49 299.59 323.60 345.94 366.92 386.77
176.25 215.86 249.25 278. 67 305.27| 329.73| 352.50 373.88 394.10
179.50 219.84 253.85 283.81 310.90 335.81 358.99 380.77 401.37
182.72 223.78 258. 40 288.90 316. 48 341.83 365.43 387.60 408.57
185.91 227. 69 262.91 293.95 322. 00 347.80 371.82 394. 37 415. 70
311. 15
317. 40
40
133.70
189.07 231. 57 267.39
298.95
327.48
353. 72
378. 15 401.09 422.78
41
135.91
192. 21 235. 41 271.83
303.91
332. 92
359. 60
384. 42
407.74 429.80
42
138. 12
195.32 239.22 276. 23
308. 84
338. 31
365. 42
390. 65
414. 35 436. 76
43
140.30
198.41 243.00| 280. 60|
313.72
343. 66
371.20
396.83 420.90 443. 66
44
142. 47
201.48 246.76| 284.93|
318. 56
348.97
376.93] 402.95 427.40 450.52
45
144.62
204.52 250.48 289. 23
323. 37|
354. 24
382.62 409.04 433.85 457.32
46
146.75
207.54 254. 18 293.50
328. 14
359. 46
388. 27
415.07 440.25 464.07
47
148,87
210.53 257.85 297.74
332.88
364. 66
393.87
421.07 446. 61 470.77
48
150.97
213. 51 261. 50 301.95
337. 59
369. 81
399. 44
427.02 452.92 477.42
49
153.06
216.47 265. 11
306. 13
342.26| 374.93
404.97 432.93 459.19 484.03
50
268.71 310. 28 346.90| 380.01| 410.46 438.80 465.42 490.59
155. 14
219.40 · 40|
356
HYDRAULIC TABLES
Table 26.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.014

8
.00005
|
.00010 .00015 .00020 | .00025 | .00030 | .00035 | .00040.00045 | .00050
0.2
0.26
0.36
0.44 0.51
0.57
0.63
0.68
0.73
0.77
0.81
0.4
41
.58
.71
.81
.91
1.00
1.08
1. 15
1. 22
1.29
•
0.6
.53
.76
.92
1.07
1. 19
1.31
1. 41
1.51
1.60
1.69
0.8
.65
.91
1. 12
1.29
1. 45
1.58
1.71
1.83
1.94
2.05
1.0
.75
1.06
1.30
1.50
1.68
1.84
1.99
2.12
2.25
2.37
1.2
.85
1.20
1.47
1.70
1.90
2.08
2. 24
2.40 2.54
2.68
1. 4
.94
1.33
1.63 1.88
2.10
2.30
2.49
2.66
2.82
2.97
1.6
1.03
1.45
1.78
2.05
2.30
2. 51
2.72
2.90
3.08
3.25
1.8
1.11
1.57
1.92
2.22
2.48
2.72
2.94
3. 14
3.33
3.51
2.0
1. 19
1.68
2.06
2.38
2.66
2.92
3. 15
3.37
3. 57
3.77
2.2
1.27
1.80
2.20
2. 54
2.84
3.11
3.36
3.59
3.81
4.01
2.4
1.35 1.90
2.33
2.69
3.01
3.30
3.56
3.81
4.04
4. 25
2.6
1.42
2.01
2.46
2.84
3. 17
3.48 3.75
4.01
4. 26
4.49
2.8 1.49
2.11
2.58
2.98
3.33
3.65
3.94
4.22
4.47
4.71
3.0
1.56
2. 21
2.70
3. 12
3.49
3.82
4. 13
4.42
4.68
4.94
3.2
1.63
2.30
2.82
3. 26
3. 64
3.99
4. 31
4. 61
4.89
5. 15
3.4
1.70
2.40
2.94
3.39
3.79
4.16
4.49
4.80
5.09
5.37
3.6 1.76 2.49
3.05
3.53
3.94
4.32
4.66
4.99
5.29
5.57
3.8
1.83
2.58
3. 17
3.66
4.09
4.48
4.84
5. 17
5. 48
5. 78
4. 0
1.89
2.67
3.28
3.78
4.23
4.63
5.00
5.35
5.67
5.98
4.2
1.95
2.76
3.38
3.91
4. 37
4.79
5. 17
5.53
5.86
6. 18
4. 4
2.02
2.85 3.49
4.03
4.51
4.94
5.33
5.70
6.05
6.37
4.6
2.08
2.94 3.60
4. 15
4.64
5.08
5.49
5.87
6. 23
6.56
4.8
2. 14
3.02
3.70
4.27
4.78
5.23
5. 65
6.04
6. 41
6.75
5.0
2. 19
3.10
3.80
4.39
4.91
5.38
5.81
6.21
6.58
6.94
5.2
2.25
3. 19
3.90
4.51
5.04
5.52
5.96
6.37 6.76
7.12
5.4
2.31
3.27
4.00
4.62
5. 17
5. 66
6. 11
6.53 6.93
7.31
5.6
2.37
3.35
4. 10
4.73
5.29
5.80
6. 26
6.69 7.10
7.48
5.8
2.42
3.43
4.20
4.85 5.42
5.93
6.41
6.85
7.27
7.66
6.0
2.48
3.50
4.29
4.96 5.54
6.07
6. 56
7.01
7.43
7.84
6.2
2.53
3.58
4.39
5.07
5.66
6.20
6.70
7.16
7.60
8.01
6.4
2.59
3.66
4.48
5. 17
5.79
6.34
6.85 7.32
7.76
8. 18
6. 6
2.64
3.73
4. 57
5. 28
5.91
6.47
6.99
7.47
7.92
8.35
6.8
2.69
3.81
4.67
5.39
6.02
6.60
7.13
7.62
8.08
8.52
7.0
2.75
3.88 4.76
5.49
6. 14
6.73
7.27
7.77
8. 24
8.69
7.5
2.88
4.07
4.98
5.75
6.43
7.04
7.61
8. 13
8.63
9.09
8.0
3.00
4. 25
5.20
6.00
6.71
7.35
7.94
8.49
9.01
9.49
8.5
3. 13
4.42
5.41
6.25 6.99
7.66
8.27
8.84 9.38
9.89
9.0
3. 25
4. 59
5.62 6.49
7.26
7.95
8.59
9.19 9.74
10. 27
9.5
10.65
3.37
10. 10
4.76 5.83
9.52
6.73
8.91
7.53
8.25
HYDRAULIC TABLES
357
Table 26.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/3g1/2
n-.014-Continued




.00055
065
0070
.00060 | .00065.00070.00075.00080.00085
.00090.00095 .00100
|
T
0.2
0.85
0.89
0.93 0.96
0.99
1.03 1.06
1.09
1.12
1. 15
0.4
1.35
1.41
1.47 1.52
1.58
1.63
1.68
1.73
1.78
1.82
0.6
1.77
1.85
1.93
2.00
2.07
2. 14
2.20
2. 27
2.33
2.39
0.8
2. 15
2. 24
2. 33
2.42
2.51
2.59
2.67
2.74
2.82
2.89
1.0
2.49
2.60
2.71
2.81
2.91
3.00
3.09
3.18
3.27
3.36
1.2
2. 81
2.94
3.06
3. 17
3.28
3.39
3.49
3.60 3.69
3.79
1.4
3. 12
3.25
3.39
3.51
3.64
3.76
3.87
3.99
4.09
4. 20
1.6
3. 41
3.56
3.70
3.84
3.98
4.11
4. 23
4.36
4.48
4.59
1.8
3.68
3.85
4.00
4. 16
4.30
4. 44
4.58
4.71
4.84
4.97
2.0
3.95
4.13
4.30
4.46
4.61
4.77
4.91
5.05
5. 19
5.33
2.2
4. 21
4.40
4.58
4.75
4.92
5.08
5. 23
5.39
5. 53
5.68
2.4
4.46
4.66
4.85
5.03
5. 21
5.38
5. 55
5.71
5.86
6.02
2.6
4. 71
4.92
5. 12
5. 31
5.50
5. 68
5.85
6.02
6. 19
6.35
2.8
4.95
5. 17
5.38
5.58
5.77
5.96
6. 15
6.33
6.50
6.67
3.0
5. 18
5. 41
5. 63
5.84
6.05
6. 24
6.44
6.62
6.81
6.98
3.2
5. 41
5.65
5.88
6. 10
6. 31
6. 52
6.72
6.91 7.10
7.29
3.4
5. 63
5.88
6.12
6. 35
6. 57
6. 79
7.00
7.20
7.40
7.59
3.6
5.85
6. 11
6. 36
6.60
6.83
7.05
7.27
7.48 7.68
7.88
3.8
6. 06
6.33
6. 59
6.84
7.08
7.31
7.54
7.75
7.97
8. 17
4.0
6. 27
6.55
6.82
7.08 7.32
7.57
7.80
8.02
8. 24
8.46
4. 2
6. 48
6.77
7.04
7.31 7.57
7.82
8.06
8. 29
8.52
8.74
4.4
6.68
6.98
7.27 7.54
7.81
8.06
8. 31
8.55
8.78
9.01
4. 6
6.89
7.19
7.48 7.77
8.04
8.30
8.56
8.81 9.05
9.28
4.8
7.08
7.40 7.70
7.99
8.27
8.54
8.81
9.06 9.31
9.55
5.0
7.28
7.60 7.91
8. 21
8.50
8.78 9.05
9.31 9.57
9.81
5. 2
7.47
7.80 8.12
8.43
8.72
9.01
9.29 9.56 9.82
10.07
5. 4
7.66
8.00 8.33
8.64
8.95 9.24
9.52 9.80 10.07
10.33
5.6
7.85
8.20 8.53
8.86
9.17
9.47
9.76❘ 10.04 10.32
10.58
5.8
8.04
8.39 8.74
9.07
9.38
9.69
9.99
10.28 10.56
10.84
6.0
8.22
8.58 8.94
9.27
9.60
9.91
10. 22
10. 51
10.80
11.08
6.2
6.4
8.40 8.77
8.58
9.13
9.48 9.81
10. 13
10.44
10.75
11.04
11.33
8.96
9.33
9.68 10.02
10.35
10.67
10.98
11. 28
11.57
6.6 8.76
6.8
8.93
9.15 9.52
9.33 9.71
9.88 10.23
10.56
10.89
11. 20
11.51
11.81
10.08 10.43
10.78
11.11
11. 43
11.74
12.05
7.0
9. 11
9.51 9.90
10.28
10.64
10.99
11.32 | 11. 65
11.97
12. 28
7.5
9.54
9.96 10.37
10.76
11. 14
11.50
11.86
12.20
12.54
12.86
8.0
9.96 10.40 10.82
11. 23
11.63
12. 01
12.38
12. 74
13.09
13. 43
8.5 10.37 10.83 11.27
11.70
12. 11
12.50
12.89
13. 26
13. 63
13.98
9.0
10.77 11.25 11.71 12. 15
12.58
12.99
13.39
13. 78
14. 16
14.52
9.5
15.06
11.17 11.66
13.88 14. 28 14.67
12. 14 12.60
13.47
13.04
358
HYDRAULIC TABLES
Table 26.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.014-Continued

.0010
.0015
.0020
.0025 .0030
.0035 .0040
.0045
.0050
T
0.2
1.15
1.41
1.62
1.82
1.99
2. 15
2.30
2.44
2.57
0.4
1.82
2.23
2.58
2.88
3. 16
3.41
3. 64
3.87
4.07
0.6
2.39
2.92
3.38
3.78
4. 14
4. 47
4.78
5.07
5. 34
0.8
2.89
3. 54
4.09
4.57
5.01
5. 41
5.79
6. 14
6.47
1.0
3.36
4. 11
4.75
5. 31
5.81
6. 28
6.71
7.12
7.51
1.2
3.79
4. 64
5.36
5.99
6. 57
7.09
7.58
8.04
8.48
1. 4
4.20
5. 14
5.94
6. 64
7. 28
7.86
8.40
8.91
9.39
1.6
4.59
5. 62
6.49
7.26
7.95
8.59
9. 18
9.74
10. 27
1.8
4.97
6.08
7.02
7.85
8.60
9.29
9.93
10.54
11.11
2.0
5.33
6. 53
7.54
8.42
9.23
9.97
10. 66
11.30
11.91
2.2
5. 68
6.95
8.03
8.98
9.83
10. 62
11.36
12.04
12.70
2.4
6.02
7.37
8.51
9.51
10.42
11. 26
12.03
12.76
13. 45
2.6
6.35
7.77
8.98
10.03
10.99
11.87
12.69
13.46
14. 19
2.8
6. 67
8.17
9.43
10.54
11.55
12.47
13.34
14. 14
14.91
3.0
6.98
8.55
9.87
11.04
12.09 13.06
13.96
14. 81
15. 61
3.2
7.29
8.93
10. 31
11.52
12.62
13.64
14. 58
15. 46
16.30
3. 4
7.59
9.30
10.73
12.00
13. 15
14.20
15. 18
16. 10
16.97
3.6
7.88
9.66
11. 15
12. 47
13.66
14.75
15.77
16.72
17.63
3.8
8. 17
10.01
11.56
12.92
14. 16
15. 29
16.35
17.34
18. 28
4. 0
8.46
10. 36
11.96
13. 37
14. 65
15.82
16.92
17.94
18.91
4.2
8.74
10.70
12.36
13.82
15. 13
16.35
17.48
18.54
19. 54
4.4
9.01
11.03
12.75
14. 25
15.61
16.86
18.03
19. 12
20.15
4.6 9.28
11.37
13. 13
14.68
16.08
17.37
18. 57
19.69
20.76
4.8
9.55
11.70
13. 51
15. 10
16. 54
17.87
19. 10
20. 26
21.36
5.0
9.81
12.02
13.88
15.52
17.00
18.36
19. 63
20.82
21.95
5.2
10.07
12. 34
14.25
15.93
17.45
18.85
20.15
21.37
22.53
5.4
10.33
12.65
14.61
16. 34
17.89
19.33
20.66
21.92
23.10
5.6
10.58
12.96
14.97
16. 74
18.33
19.80
21. 17
22.45
23.67
5.8
10.84
13. 27
15.32
17.13
18.77
20.27
21.67
22.99
24. 23
6.0
11.08
13. 57
15.67
17.52
19.20
20.73
22. 17
23.51
24.78
6.2
11.33
13.87
16.02
17.91
19. 62
21. 19
22.66
24.03
25.33
6. 4
11. 57
14. 17
16. 36
18. 29
20.04
21.65
23. 14
24.54
25.87
6.6
11.81
14.46
16.70
18.67
20.46
22.09
23.62
25.05
26.41
6.8
12.05 14.76
17.04
19.05
20.87
22.54
24.09
25.56
26.94
— 1 — —
12. 28
15.04
17.37
19.42
21. 27
22.98
24. 57
26.06
27.46
12.86
15.75
18. 19
20.33
22. 28
24.06
25.72
27.28
28.76
13.43
16. 44
18.99
21.23
23. 25
25. 12
26.85
28.48
30.02
13.98
17.13
19.77
22.10
24. 21
26. 15
27.96
29.66
31. 26
14.52 17.79 20.54
22.96
25. 15
27.17
29.05
30.81
32.47
9.5
33.67
15.06 18.44 21.29
31.94
23.81
30.11
26.08
28. 17
HYDRAULIC TABLES
359
Table 26.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= Pr2/3g1/2
n
n=.014- Continued

.0055
.0060
.0065
.0070 .0075
.0080
.0085
.0090
.0095
.0100
0.2
2.69
2.81
2.93
3.04
3. 14
3. 25
3.35
3. 44
3. 54
3.63
0.4
4. 27
4.46
4. 65
4.82
4.99
5. 15
5. 31
5.47
5. 62
5.76
0.6
5.60
5.85
6.09
6. 32
6. 54
6.75
6.96
7.16
7.36
7.55
0.8
6.78
7.09
7.37
7.65
7.92
8.18
8.43
8.68
8.92
9.15
1.0 7.87 8.22
8.56
8.88
9.19
9.49
9.79
10.07
10.35
10. 61
1.2
8.89 9.28
9.66
10.03
10.38
10.72
11.05
11.37 11.68
11.99
1.4 9.85 10.29
10.71
11.11
11.50 11.88
12.25
12.60 12.95
13.28
1.6 10.77 11.25
11.71
12.15
12.57
12.99
13.39
13.78 14.15
14. 52
1.8
11.65 12.17
12.66
13. 14
13.60
14.05
14.48
14.90 | 15. 31
15.71
2.0
12.50
13.05 13.58
14.10
14. 59
15.07
15.53
15.98 16.42
16.85
2.2
13. 32
13.91
14.48
15.02
15. 55
16.06
16.55 17.03
17.50
17.95
2.4
14. 11
14. 74
15.34
15.92
16. 48
17.02
17.54 18.05 18.54
19.03
2.6
14.88
15. 55
16.18
16.79
17.38
17.95
18.50
19.04 19.56
20.07
2.8
15.64
16.33
17.00
17.64
18.26
18.86
19. 44
20.00
20.55
21.09
3.0
16.37
17.10
17.80 18.47
19. 12
19.75
20.36
20.95
21.52
22.08
3.2
17.09
17.85 18.58
19.28
19.96
20.62 | 21.25
21.87
22. 47
23.05
3.4
17.80
18. 59
19.35 20.08
20.78
21.47
22. 13
22.77
23.39
24.00
3.6
18. 49
19.31 20.10
20.86
21.59
22.30
22.99
23.65
24.30
24.93
3.8
19.17
20.02
20.84 21.63
22.38
23.12
23.83
24. 52
25. 19
25.85
4.0
19.84
20.72 21.56
22.38
23.16
23.92
24.66
25.37
26.07
26.75
4.2 20.49
21.40 | 22. 28
23.12
23.93
24. 71
25. 47
26. 21
26.93
27.63
4.4 21.14
22.08 22.98
23.85 24.68
25.49
26.28
27.04
27.78
28.50
4.6 21.77
4.8
22.40
22.74 | 23.67 24.56 | 25. 42
23.40 24.35 | 25.27 26. 16
26. 26
27.07
27.85
28. 61
29.36
27.01
27.85
28.65
29.44
30.20
5.0
23.02
5.2
23.63
5.4
24. 23
5.6
24.82
25.93
5.8
25. 41
26.54
24.04 | 25.02 | 25.97 | 26.88
24.68 25.69 26.65 27.59
25. 31 26.34 27.33 | 28.29
26.99 28.00 28.99
27.62 28.67 29.67
27.76 | 28. 61
29.44 30.25
31.04
28.50 29.37
29. 22 30.12
30.22
31.05 31.86
30.99 31.84 32.67
29.94
30.86
31.75
32.62
33.47
30.65
31.59
32. 51
33. 40
34.26
6.0
25.99
6.2 26.57
6.4 27.13
6.6 27.70 28.93
28.34
27.15 28.26 29.32 30.35
27.75 28.88 29.97 31.02
29.50 30.61 31.69
31.35
32.31 | 33. 25
34. 16
35. 05
32.04 33.03 33.98
34.92
35.82
32. 73 | 33. 73
34.71
35.66
36.59
30.11 | 31.25
32.34
33.40
34. 43
35.43
36.40
37.35
6.8 28.25 29.51
30. 72
30.72
31.87 | 32.99
34.08
35. 12
36.14
37.13
38. 10
7.0
28.81 30.09
7.5 30.16
8.0 31.49
31.31 32.50 | 33.64
34.74
35.81
36.85
37.86
38.84
31.50
32.79 | 34.03 | 35. 22
36.38
37.50
38.58 39.64
40.67
32.89
34. 23 35.52 36.77
37.97
39. 14
40.28
41.38
42.46
8.5
32.79 34.24
35.64 | 36.99 | 38.29
39.54
40.76
41.94
43. 09
44. 21
9.0
34.06
35.57 37.03 38.42 39.77
41.08
42. 34
43. 57
44.76
45.93
9.5
47.61
35. 31
46. 41
36.88 38.39
38.39 39.83 41.23
43.90 45.17
42.58
360
HYDRAULIC TABLES
Table 26.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.014-Continued

.01
.02
.03
.04 .05
.06
.07 .08
.09
.10
0.2
3.63
5. 13
6.29
7.26
8.12
8.89
9.60
10.27 10.89
11.48
0.4
5.76
8.15
9.98
11.52
12.88
14. 11
15.25
16.30 17.29
18. 22
0.6 7.55
10.68
13.08
15. 10
16.88
18.50
19.98
21.36
22.65
23.88
0.8
9.15
12.94
15.84
18.29
20.45
22. 41
24. 20
25.87
27.44
28.93
1.0
10. 61
15.01
18.38
21.23
23.73
26.00
28.08
30.02
31.84 33.57
1.2
11.99
16.95 20.76
23.97
26.80
29.36
31.71
33.90
35.96 37.90
1.4
13. 28
18.79
23.01 26.57
29.70
32.54
35. 14
37.57
39.85
42.01
1.6
14. 52
20.53
25.15
29.04
32.47
35.57
38.42
41.07
43. 56
45.92
1.8
15.71
22.21
27.20
31.41
35. 12
38.47
41.55
44. 42
47.12
49.67
2.0
16.85
23.83
29.18
33.70
37.68
41.27
44. 58
47.66
50.55
53.28
2.2
17.95
25.39 31.10
35.91.
40. 15
43.98
47.50
50.78
53.86
56.78
2.4
19.03 26.91
32.96
38. 05
42.55
46.61
50.34
53.82
57.08
60. 17
2.6
20.07 28.38
34.76
40.14
44.88
49.16 53.10
56.77
60.21
63.47
2.8
21.09
29.82 36.52
42.17
47.15
51.65
55.79
59.64
63. 26
66.68
3.0
22.08
31.22 38. 24
44. 16
49.37
54.08
58.41
62.45
66. 24
69.82
3.2 23.05
32.60
39.92
46.10
51.54
56. 46
60.98
65. 19
69.15
72.89
3.8
8.4 24.00 33.94 41.57 48.00 53.67
3.6 24.93 35.26 43.18 49.86
25.85
58.79
63.50
67.88
72.00
75.89
55.75
61.07
65.96
70.52
74.80
78.84
36.55 44.77 51.69
57.80
63.31
68.39
73.11
77.54 81.74
4.0
26.75
37.83 46.33]
53.49
59.81
65. 51
70.76
75.65 80.24 84.58
4.2
27.63 39.08 47.86 55.26
61.78
67.68
73.10
78.15 82.89 87.38
4.4
28.50
40.31 49.37 57.00
63.73
69.81
75.41
80.61 85.50
90.13
4.6 29.36
41.52 50.85
58.72
65.65
71.91 77.67
83.04
88.07
92.84
4.8
30.20 42.71 52.31
60.41
67.54
73.98
79.91
85.43
90.61
95. 51
5.0 31.04
43.89
53.76
62.07
69. 40
76.02
82. 11
87.78
93.11
98.15
5.2 31.86
45.05 55. 18
63.72
71.24
78.04
84.29
90. 11
95. 58 100.75
5.4
32.67
46.20
56.59
65.34 73.05
80.03
86.44
92.41
98.01 103.31
5. 6
33.47
47.34 57.98 66.94 74.85
81.99
88.56
94.67 100. 42 105.85
5.8
34.26
48.46 59.35 68.53 76.62 83.93
90.66
96.91 102.79 108.35
6.0
35.05
49.56 60.70 70.10
78.37
85.85
92.73
99. 13
105. 14 110.83
6.2%
35.82
50.66 62.05
71.64
80. 10
87.75
94.78 101.32
107.47 113.28
6.4 36.59 51.74
63.37
73. 18
81.81
89.62
96.80] 103, 49]
109. 77
115. 70
6.6 37.35 52.82 64. 69)
74.69
6.8
38.10
53.88
65.99
76.20
83.51 91.48
85.19 93.32
98.81 105.63 112.04
100.80] 107.76 114. 29
118. 10
120.47
7.0
38. 84
7.5
40.67
54.93 67.27 77.68
57.51 70.44 81.34
8.0
42.46
60.04 73.54 84.91
8.5
44. 21
9.0
45.93
86.85 95.14 102.76 109.86 116. 52
90.94 99.62 107.60 115.03 122.01 128.61
94.94 104.00 112.33 120.09 127.37 134.26
62.52 76.57 88.42 98.85 108.29 116.96 125. 04| 132. 62
64.95 79.55 91.85 102.69 112. 49 121.51 129.90 137.78
139.80
122.83
145. 23
9.5
67.33 82.46 95. 22 106.46 116.62 125.97 134. 66 142.83 150. 56
47.61
HYDRAULIC TABLES
361
Table 26.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.014
.014-Continued

.00005
.00010.00015.00020.00025.00030.00035.00040.00045.00050
10
13
15
16
17
18
19
20
21
23
24
25
27
29
35
37
41
47
CERRI B***= 22222 22222 8-20 -0008 ***** *****
3.48
4.93
6.03 6.97 7.79 8.53 9.22 9.85 10.45
11.02
11
3.71
5. 25
6.43
7.42
8.30 9.09 9.82
10.50
11.14
11.74
12
3.93
5. 56
6. 81
7.87
4.15
5.87
7.19
8.30
8.80
9.28 10.16
9.64
10.41
11. 13
11.80
12. 44
10.98 | 11.74
12.45
13. 12
14
4.36
6. 17
7.55
8.72
9.75
10.68
11.53 12.33 | 13.08
13.79
4.56
6.46
7.91
9. 13
10. 21
11.18
12.08 | 12.91
13.69
14.44
4.77
6.74
8.25
9.53
10.66
11.67
12.61
13.48
14.30
15.07
4.96
7.02
8.59
9.92
11.10
12.15
13. 13
14.04
14.89 15.69
5.15
7.29
8.93
10.31
11.53
12.63
13. 64
14.58
15.46
16.30
5.34
7.56
9.26
10.69
11.95
13.09
14.14
15. 12
16.03
16.90
5. 53
7.82
9.58 11.06
12.37
13.55
14.63
15.64
16. 59
17.49
5.71
8.08
9.90
11.43
12.77
13.99
15.11
16. 16
17. 14
18.07
5.89
8.33
10. 21
11.79
13. 18
14.43
15.59
16. 67
17.68
18.63
6.07
8.58
10. 51
12. 14
13. 57
14.87 16.06
17.17
18.21
19. 20
6. 24
8.83
10.82
12.49
13.96
15.30 | 16.52
17.66
18.73
19.75
6.42
9.08
11.11
12.83
14.35
15.72
16.98
18. 15
19.25
20.29
26
6. 59
9.32 11.41
13. 17
14.73
16. 13
17.43
18.63
19.76
20.83
6.75
9.55 11.70
13.51
15. 10
16. 55
17.87
19.11 20.26
21.36
28 6.92
7.08
9.79 11.99
13.84
15.48
16.95
18.31
19.57
20.76
21.89
10.02 12.27
14. 17
15.84
17.35
18.74 20.04
21.25
22.40
30 7.25
31 7.41
32 7.57
33 7.72 10.92
10.25
12.55
14.49
16. 20
17.75
19.17
20.50
21.74
22.92
10.47
12.83
14.81
16.56
18. 14
19.60
20.95
20.95
22. 22
22.22
23.42
10.70 13. 10
15. 13
16.92
18.53
20.02
21.40
22.70
23.92
13.37
15.44
17.27
18.91 20.43
21.84
23. 17
24.42
34
7.88 11.14 13.64 15.75
17.61 19.29
20.84
22. 28
23.63
24.91
8.03 11.36 13.91
16.06
17.96 19.67
21.25 | 22. 71
24.09
25.40
36
8.18 11.57 14. 17
16. 37
18.30 20.04
21.65 23. 14
24.55
25.88
8.33
11.79
14.43
16. 67
18.63 20.41
22.05 | 23. 57
25.00
26.35
38
8.48
12.00
14.69
16.97
18.97 | 20.78
22. 44
23.99
25.45
26.83
39 8.63
12. 21
14.95
17.26
19.30 21.14
22.84
24. 41
25.89
27.30
40
8.78 12.41 15.20
17.56
19.63
21.50
23.23
24.83
26. 34
27.76
8.92
12.62 15.46
17.85
19.95
21.86
23. 61
25. 24
26. 77
28.22
42
9.07 12.82 15.71
18. 14
20.28
22. 21
23.99
25. 65
27.21
28.68
43
9.21
13.03
15.96
18.42
20.60
22.56
24.37
26.06
27.64
29.13
44
9.35
13. 23
16.20
18.71
20.92 22.91
24.75 26. 46
28.06
29.58
45
9.50
13. 43
16.45
18.99
21.23 23.26
25.12❘ 26.86 | 28.49
30.03
46
9.64
13.63
16. 69
19. 27
21.55
23.60
25.49 27.25 28.91
30.47
48 9.91
9.77 13.82
14.02
16.93
19.55
21.86
23.94
25.86
27.65
29.32
30.91
17.17 19.83 22.17
24. 28
26. 23
28.04
29. 74
31.35
49 10.05 14. 21
17.41 20.10
22.47
24.62
26.59
28.43
28.43
30.15
31.78
50
10. 19
14.41
17.64 20.37
22.78❘ 24.95 26.95
26.95
28.81
28.81 30.56
32. 21
563189°-44- -24
362
HYDRAULIC TABLES
Table 26.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= 72/31/2
n=.014—Continued

.00055
.00060
.00065.00070.00075.00080.00085.00090.00095 .00100
|
T
12
13
18
21
PIRRI 19=-= 22234 *22** *H*** 18508 243** ***** 8
10 11.55
12.07 12.56
13.03 13.49 13.93
14.36
14.78
15. 19
15.58
11 12.31
13.05
12.86
13.38
13.89
14.38
14.85
15. 31
15.75
16. 18
16. 60
13.63
14. 18
14.72
15. 24
15. 74
16.22
16.69
17.15
17.59
13.76
14.37
14.96
15.53
16.07
16.60
17.11
17.61 18.09
18.56
14
14.46 15.10
15.72 16.31
16.89
17.44
17.98
18.50 19.00
19.50
15 15. 14
15.81
16.46
17.08
17.68
18.26
18.82
19.37
19.90
20.42
16
15.81
16. 51
17.18
17.83 18.46
19.06
19. 65
20.22
20.77 21.31
17 16.46
17.10
17.19
17.89 18.57
19.22
19.85
20.46
21.05
21.63
22.19
17.86 18.59 19.29
19.97
20.62
21.25 21.87
22.47
23.05
17.72 18.51 19.27
20.00
20.70
21.38
22.03
22.67
23.29
23.90
20 18.34 19.16 19.94
20.69
21.42
22.12
22.80
23.46
24.10
24.73
18.95 19.79 20.60
19.54
20.13 21.03 21.89 22.71
21.38
22. 13
22.85
23.55
24. 24
24.90
25.55
20.41 21.25 22.05
22.82
23.57
24.30
25.00
25. 69
26.35
23.51
24. 28
25.03
25.75
26.46
27.15
20.71 21.63 22.52
23.37
24. 19
24.98
25.75 26.49 | 27.22
27.93
25
21.28 22.23 23.14 24.01
24.85
25.67
26.46 | 27.23
27.97
28.70
26
21.85 22.82
23.75
24.65
25.51
26. 35
27.16 27.95
28.71
29.46
27 22.40 23.40
24. 36
25. 27
26.16
27.02
27.85 28.66
29.44
30.21
28
22.95
23.97
24.95
25.89
26.80
27.68
28.53
29.36 30.17
30.95
29 23.50 24.54 25.54 26.51 27.44
28.34
29.21
30.06 30.88
31.68
30
24.03
25.10 26.13 27.11
28.07 28.99 29.88
30.74 31.59
32.41
31
24.56
25.66
26.70 27.71
28.69
29.63
30.54
31.42 | 32. 28
33. 12
32
25.09
26. 21
27.28 28.31
29.30
30.26
31. 19
32.10 32.98
33.83
33
25.61
26.75
27.84 28.89
29.91
30.89
31.84
32.76 33.66
34.53
34
26. 13
27.29
28.40 | 29.47
30.51
31.51
32.48
33.42 34.34
35.23
35
26.63
27.82
28.96 | 30.05
31.10
32.12 33.11
34.07
35.01
35.91
36 27.14
28.35
29.50 | 30.62
31.69
32.73
33.74
34. 72
35.67
36.60
37
27.64
28.87 30.05 31.18
32. 28
33.34
34.36 | 35. 36
36.33
37.27
38
28. 14
29.39 30.59 31.74
32.86
33.93
34.98 35.99
36.98
37.94
39
28.63
29.90
31.12 32.30
33.43
34.53
35.59
36. 62
37.62
38.60
40
29.11
30.41
31.65
32.85
34.00
35. 11
36.19
37.24
38.26
39.26
41 29.60 30.91 32. 18
33.39
34.56
35.70
36.80
37.86 38.90
39.91
30.08
31.41
32.70
33.93
35. 12
36. 27
37.39 38.47
39.53
40.56
30.55 31.91 33.21 34.47
35.68
36.85
37.98 39.08
40. 15
41.20
44
31.02 32.40 33.73
35.00
36. 23
37.42
38.57 39.69
40.77
41.83
45 31.49
32.89 | 34. 24
35.53
36.78
37.98
39. 15
40.29
41.39
42.47
46
31.96
33.38
34. 74
36.05
37.32
38.54
39.73
40.88
42.00
43.09
47
32.42
33.86
35. 24
36. 57
37.86
39.10
40.30 41.47
42.61
43. 71
48 32.88 34.34
35.74
37.09
38.39
39.65 40.87
42.06
43. 21
44. 33
49
33.33
34.81 36.24 37.60 38.92
40.20
41.44
42.64
43.81
44.95
60
33.78 35.29 36.73 38.11 39.45
40.75
42.00 43.22 | 44.40
45.56
HYDRAULIC TABLES
363
Table 26.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/3g1/2
n
n=.014—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
T
10
12
17
PERII BCF-2
15.58
19.08
22.03 24.63
26.98
29.15
31. 16
33.05
34.84
11
16.60 20.33
23.48
26.25
28.75
31.06
33.20
35.22
37. 12
17.59 21.55
24.88
27.82
30.47
32.91
35. 19
37.32
39.34
13
18.56
22.73
26. 24
29.34
32. 14
34.72
37. 12
39.37
41.50
14
19.50
23.88
27.57
30.83
33.77
36.48
38.99
41.36
43.60
15 20.42
25.00
28.87
32. 28
35.36
38. 19
40.83
43.31
45. 05
16 21.31
26. 10
30. 14
33.70
36.91
39.87
42.63
45. 21
47.66
22.19
27.18
31.38
35.09
38.44
41.52
44.38
47.08
49.62
18
23.05
28.23
32.60
36.45
39.93
43. 13
46.11
48.90
51.55
19
23.90
29. 27
33.80
37.79
41.40
44. 71
47.80
50.70
53.44
~~~~~
20
24.73
30.29
34.98
39. 10
42.84
46.27
49.46
52.46
55.30
21
25.55
31.29
36. 13
40.40
44.25
47.80
51. 10
54. 20
57. 13
22
26.35
32.28
37.27
41.67
45, 65
49.30
52.71
55.90
58.93
23
27. 15
33.25
38.39
42.92
47.02
50.79
54. 29
57.59
60.70
24
27.93
34.20
39.50
44. 16
48.37
52.25
55.85
59. 24
62.45
25
28.70
35. 15
40.59
45.38
49.71
53.69
57.40
60.88
64. 17
26
29.46
36.08
41.66 46.58
51.02
55.11
58.92
62.49
65.87
27
30.21 37.00
42.72 47.76
52.32
56.52
60.42 64.08
67.55
28 30.95 37.91 43.77
48.94
53. 61
57.90
61.90
65.66
69.21
29
31.68
38.80
44.81 50.09
54.88
59.27
63.37 67.21
70.84
30
32.41
39.69
45.83
51. 24
56. 13
60.63
64.81
68.75
72.46
31
33. 12
40.57
46.84
52.37
57.37
61.97 66.25
70.26
74.07
32
33.83
41. 44
47.85 53.49
58.60
63.29
67.66
71.77
75.65
33
34.53
42.29
48.84 54.60 59.81
64.61
69.07 73.26
77.22
34
35. 23
43. 14
49.82 55.70
61.02
65.90
70.45
74.73
78.77
35
35.91
43.99
50.79
56.79
62. 21
67. 19
71.83
76. 19
80.31
36
36.60 44.82
51.75
57.86
63.38
68.46
73.19
77.63
81.83
37
37.27
45.65
52.71 58.93
64.55
69.73
74.54
79.06
83.34
38
37.94 46.46
53.65
59.99
65. 71
70.98
75.88 80.48
84.83
39 38.60
47.28
54.59
61.03
66.86
72.22
77.20
81.89
86.31
40 39.26 48.08
55.52
62.07
68.00
73.45
78.52
83.28 87.78
41 39.91 48.88
56.44
63. 10
69. 13
74.66
79.82
84.66
89.24
42 40.56 49.67
57.36
64. 12
70.25
75.87
81. 11
86.03
90.69
43 41.20
50.46
58.26
65. 14
71.36
77.07
82.39
87.39
92.12
44
41.83
51.24
59.16
66. 14
72.46
78.26
83.67
88.74
93.54
45
42.47
52.01 60.05
67.14
73.55
79.44
84.93
90.08
94.95
46
43.09
52.78 60.94
68. 13
74.64
80.62
86. 18
91.41
96.36
47
43.71
53.54 61.82
69. 12
75.72
81.78
87.43
92.73
97.75
48
44. 33
54.30 62.70
70.10
76.79
82.94
88.66
94.04
99. 13
49
44.95
55.05 63.56 71.07
77.85 84.09
89.89
95.34
100.50
50
101.86
45.56
91.11 96.64
55.79 64.42 72.03
78.90 85.23
364
HYDRAULIC TABLES
Table 26.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.014—Continued

8
Co
.0055
.0060 .0065 .0070 .0075 .0080 .0085 .0090 .0095 .0100
10
13
14
18
28
29
31
CERRE 19**= 222** *2222 8-*** MANA G**** ***
36.54
11 38.93
12 41.26
43.52
38. 16 39.72 41.22
40.67 42.33
48.09 44.85
42.67 44.07 45.42 46.74 48.02
49.27
43.92
45.47
46.96 48.40 49.81 51.17
52.50
46.55
48. 18
49.76
51.29
52.78
54.23
55.63
45.46
47.31 49.10
50.82
52.49
54. 10
55.67
57.20
58.68
45. 73
47.76 49.71
51.59
53.40
55. 15
56.84
58.49 60.09
61.66
15 47.88
50.01 52.05
54.01
55.91
57.74
59.52
61.25 | 62.92
64.56
16 49.98
52.21 54.34
56.39
58.37
60. 28
62. 14
63.94
65. 69
67.40
17 52.04
54.36 56.58
58.71
60.77 |
62.77
64.70
66.58
68.40
70. 18
54.07 56.47 58.78
60.99
63. 13
65. 21
67.21 69.16
71.06
72.90
56.05 58.54 60.93
63.23
65.45
67.60
69.68
71.70
73.66
75.58
20 58.00
60.58
63.05
65.43
67.73
69.95
72.10
74. 19
76.23
78. 21
21 59.92
62.58
65. 14
67.60 | 69.97
72.26
74.49
76.65
78.75
80.79
61.80
23 63.66
24 65.50
64.55
67. 19
69.72 | 72. 17
74.54
76.83
79.06 81.23
83.34
66.49
69.21
71.82 74.34
76.78
79.14 81.44 | 83.67
85.84
68.41
71.20 73.89 76.48
78.99 | 81.42 | 83.78 | 86.08
88.31
25
67.30 70.30 73.17 75.93
26 69.09 72.16 75.10 77.94
78.59
81.17 83.67
86.09 | 88.45
90.75
80.67
83.32
85.88
88.37 90.80
93. 16
27 70.85 74.00 77.02
79.92
82.73 85.44
88.07
90.63
93.11
95.53
72.58 75.81 78.91
81.89 84.76 87.54
90.23
92.85
95. 39
97.87
74.30 77.61 80.78 83.8286.77
89.61
92.37
95.05
97.65
100. 19
30 76.00 79.38 82.62
85.74 88.75 | 91.66
94.48
97.22 | 99.88
102.48
32
35 84.23
34 82.61
87.97
77.68 81.13 84.45 87.64 90.71 93.69
79.34 82.87 86.25 89.51 92.65 95.69 98.64 101. 50
33 80.99 84.59 88.04 91.37 94.57 97.67 100.68 103. 60
86.29 89.81 93.20 96.47 99.64 102.70 105. 68
96.57
99.37 |102.09
104. 74
104.28
106.99
106. 44
109. 20
108.58
111.40
36 85.82 89.64
91.56 95.02 98.36 101.58 104.71
93.30 96.82 100.22 |103. 51
107.74 110.70
113.57
|106.69
109. 79 |112. 79
115. 72
38
39
37 87.41 91.29 95.02 98.61102. 07
88.97 92.93 96.72 100.38 103.90
90.53 94.55 98.41 102. 13 |105. 71
105. 42
108. 66
111.81 114.87
117.86
107.31
110.61
113.82 116.93
119.97
109. 18
112. 54
115.80 118.98
122. 07
40
92.07
96.16 100.09 103.87
107.51
111.04
|114. 46
117. 77 |121.00
124. 15
41
93.60
97.76 101.75 105. 59
109. 30
112. 88
116. 36
119. 73
123. 01
126. 21
42
95. 11
99.34 103.40 107.30
111.07
114. 71
118. 24
121. 67
125. 00
128.25
43
96.62
100.91 105.03 109.00
112. 82
116. 52
120. 11
|123.59
126.98
130. 28
44
98.11
102. 47 106.66 110. 68
114. 57
118. 32
|121.97 |125.50 128.94
132. 29
45 99.59
104.02 108. 27 |112.35
|116.30
120. 11
|123.81
127.40 130.89
134. 29
46
101.06
105.55 109.86 114.01
118.01
121.88
125. 63
129. 28
|132. 82
136. 27
48
47 102, 52
103.97
107.08 111. 45
115. 66
119. 72
123. 64
127. 45
131. 14
134. 74
138.24
108.59 113.03 117.29
121. 41
125. 39
129. 25
133.00
136. 64
140. 19
49 | 105. 41
110.09 114.59 118. 92
123.09
127. 13
131. 04
134.84
138. 53
142. 13
50
144.06
106.84
111.59 116. 14 120. 53 124. 76 128. 85 132. 81 136. 67 140. 41
HYDRAULIC TABLES
365
Table 26.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.014-Continued

.01
.02
.03
.04
.05
.06
06.0
.07
.08
.09
.10
T
10
49.27
11
52.50
12
55.63
13
58.68
14
61.66
69.67 85.33 98.53 110.16 120.68 130.35 139.35 147.80 155.80
74.25 90.93 105.00 117.39 128.60 138.90 148.49 157.50| 166.02
78.68 96.36 111. 27 124. 40 136.28 147.20 157.36 166.90 175.93
82.99 101.64 117.37 131. 22 143.75 155.26 165.98 176.05 185. 58
87.19 106.79 123. 31| 137.87 151.03 163. 13 174. 39 184.97 194.97
15
64. 56
16
67.40
17
70.18
18
72.90
19
75. 58
91.30 111.82 129.12 144. 36
95.31 116.73| 134. 79] 150.70
99. 24 121.55 140.35 156.92
103.10 126. 27 145.80 163.01
106.88 130.90 151. 16
158.13| 170.81| 182. 60
165.09| 178. 31| 190.63]
171.90 185. 67| 198.49
178.57 192.88| 206. 20]
169.00 185. 13 199.96 213.77 226.73 239.00
193. 67| 204.15
202. 19| 213.13
210. 53| 221.92
218.71| 230. 54
20
78.21
21
80.79
22
83.34
23
85.84
24
88.31
110.60 135. 46 156. 41
114.26 139.94 161. 58
117.86 144.34| 166.67
121.40 148. 69 171.69
124.90 152.97 176. 63
174.88 191.57 206.92 221.20| 234. 62| 247.31
180.66| 197.90] 213.76| 228. 52| 242. 38| 255.49
186.35| 204.13| 220.49 235.71| 250.01| 263. 54
191.95 210.27 227. 12 242.80 257. 53 271.46
197.48] 216.33 233. 66
249.79
264. 94
279.27
25
90.75
128.34 157.19 181. 50
202.93
222. 29
240. 10
256. 68
272. 25
286.98
26 93.16
131.74 161.35 186. 31|
208.30
228.18
246. 47
263. 48
279. 47
294. 58
27
95.53
135.10 165. 46
191.06
213. 61
234.00
252. 74
270.20
286. 59
302.09
28
97.87
138.41 169.52
195. 75
218.85
239. 74
258. 95
276.83
293. 62
309.50
29
100. 19
141.69 173. 53
200. 38
224. 03
245. 41|
265.08
283. 38
300. 57
316.83
30
102. 48
144.93 177.50 204. 96
229. 15
251.02
271. 14
289.86
307.44
324. 07
31
104. 74
32
106.99
33
109. 20
34
111.40
148. 13 181.42 209.49 234.22
151.30 185.30 213.97 239.23 262.06 283.06
154. 44 189. 14 218.41 244. 18 267.49 288.92
157.54 192.95 222.80 249.09 272.87 294. 73
256.57 277. 13
296. 26
314. 23
331.23
302. 60
320.96 338.32
308.87 327.61
315. 08 334. 19
345. 33
352.27
35
113.57
36 115.72
37 117.86
160.61 196.71 227.14| 253.95| 278.19
163.66 200.44 231.45 258.77 283.47
166.68 204. 14| 235.72 263.54 288. 69
300. 48
306. 18
321.23] 340.71 359.14
327.32 347.17| 365.95
311.82| 333.35 353. 57 372.70
38 119.97
169.67 207.80 239.94
268. 27
293. 87
39
122.07
172.63 211.43 244. 14
272.95
299.00
317.42 339.33] 359.92 379.38
322.96 345. 26 366. 20 386.01
40
124. 15
175.57 215. 03]
248. 29]
277.60
41
126. 21
178.48 218.60 252.41|
282. 21|
42
128.25
181.37 222.14
256. 50|
286. 78]
314. 15|
304.09| 328.46 351.14] 372. 44| 392. 58
309.14 333.91| 356.96 378.62| 399.10
339.32
362.75 384. 75 405.56
43
130.28
184.24 225. 65
260. 56
291.31
319. 11
344. 68
368. 48 390.83 411.97
44
132. 29
187.09 229. 13
264. 58
295.81
324. 04
350. 01
374. 17 396.87 418.34
45
134. 29
46
47
48
49
140. 19
142.13
189.91 232.59 268.57| 300.27
136. 27 192.71 236.02 272.54 304.71 333.79
138.24 239.43| 276.47|
195.50 239. 43 276. 47 309.11 338. 61
198.26 242.82 280.38 313. 48 343.39|
201.00 246. 18 284.26 317.81| 348.15
328.93
355.29]
379.82| 402.86| 424. 65
360. 53 385.43 408.81| 430.92
365. 74 390.99 414.71 437.14
370.91| 396. 52 420.57 443.32
376.04 402. 01′ 426. 39| 449.46
50 144.06 203. 73 249. 52 288. 12 322. 12 352.87 381. 14 407.46 432. 17 455.55
366
HYDRAULIC TABLES
Table 27.-Velocity of water, v, in feet per second, based on
♡
1.486
Manning's formula v= •r2/31/2
n=.015
n


030
.00015.00020.00025.00030.00035.00040.00045 | .00050
.00005 .00010.00015
0.2
0.24
0.34
0.41
0.48 0.54 0.59
0.63
0.68
0.72
0.76
0.4
.38
.54
.66
.76
.85
.93
1.01
1.08
1. 14
1.20
0.6
.50
.70
.86
1.00
1. 11
1. 22
1. 32
1. 41
1.49
1.58
0.8
.60
.85
1.05
1. 21
1.35
1.48
1.60
1.71
1.81
1.91
1.0
.70
.99
1.21
1.40
1.57
1.72
1.85
1.98
2.10
2. 22
1.2
.79
1. 12
1.37
1.58
1.77
1.94
2.09
2. 24
2.37
2.50
1.4
.88
1.24
1.52
1.75
1.96
2.15
2.32
2.48
2.63
2.77
1.6
.96
1.36
1.66
1.92
2. 14
2.35
2. 54
2.71
2.87
3.03
1.8
1.04
1.47
1.80
2.07
2.32
2.54
2.74
2.93 3.11
3.28
2.0
1. 11
1.57
1.93
2. 22
2.49
2.72
2.94 3.15
3.34
3.52
2.2
1. 18
1.68
2.05
2.37
2.65
2.90 3.14 3.35
3.55
3.75
2. 4
1. 26
1.78
2.17
2. 51
2.81
3.08
3.32
3.55
3.77
3.97
2.6
1.32
1.87
2.29
2.65
2.96
3. 24
3.50
3.75
3.97
4. 19
2.8
1.39
1.97
2. 41
2.78
3. 11
3. 41
3.68
3.94
4. 17
4.40
3.0
1.46
2.06
2.52
2.91
3.26
3.57
3.86
4. 12
4. 37
4. 61
3.2
1.52
2. 15
2. 63
3.04
3.40
3.73
4.02
4.30
4.56
4.81
3.4
1.58
2. 24
2.74
3. 17
3. 54
3.88
4. 19
4.48
4.75
5. 01
3.6
1.65
2. 33
2.85
3. 29
3.68
4.03
4.35
4.65
4.94
5.20
3.8
1.71
2.41
2.95
3.41
3.81
4. 18
4. 51
4.82
5. 12
5.39
4.0
1.77
2.50
3.06
3.53
3.95
4. 32
4. 67
4.99
5.30
5. 58
4.2
1.82
2.58
3. 16
3.65
4.08
4.47
4.82
5. 16
5.47
5.77
4.4
1.88
2.66
3. 26
3.76
4. 21
4.61
4.98
5.32
5.64
5.95
4.6 1.94
2.74
3.36
3.88
4. 33
4.75
5. 13
5.48
5.81
6. 13
4.8
1.99
2.82
3.45
3.99
4.46
4.88
5. 27
5.64
5.98
6.30
5.0
2.05
2.90 3.55
4. 10
4.58
5.02
5.42 5.79
6. 14
6.48
5.2
2.10
2.97 3.64
4.21
4.70
5. 15
5.56
5.95
6.31
6.65
5. 4
2. 16
3.05
3.73 4.31
4.82
5. 28
5.70
6.10
6.47
6.82
5.6
2. 21
3. 12
3.83 4.42
4.94
5.41
5.84
6. 25
6.63
6.99
5,8
2.26
3.20
3.92
4.52
5.06
5.54
5.98
6.40
6.78
7. 15
ம்ம்ம்ம்ம்
−2+ CO GO
2.31
3.27
4.01 4.63
5. 17
5.67
6. 12
6.54
6.94
7.31
2.36
3.34
4.09
4.73
5. 29
5.79
6.25
6.69
7.09
7.48
2.41
3.41
4. 18
4.83
5.40
5.91
6.39 6.83
7.24
7.64
2.46
3.49
4. 27
4.93
5.51
6.04
6.52
6.97
7.39
7.79
2.51 3.56
4.35
5.03
5.62
6. 16
6.65
7.11
7.54
7.95
7.0 2.56
3.63
4.44
5. 13
5. 73
6. 28
6.78
7.25
7.69
8.11
7.5 2.68 3.80
4. 65
5.37
6.00
6. 57
7.10
7.59
8.05
8.49
8.0 2.80
3.96
4.85
5.60
6.27
6.86
7.41
7.93 8.41
8.86
8.5 2.92
4. 13
5.05
5.84
6.52
7.15
7.72
8.25 8.75
9.23
9.0
3.03
4.29
5.25 6.06 6.78
7.42
8.02 8.57
9.09
9.58
9.5
9.94
3. 14
9.43
4.44
8.31 8.89
5.44 6.28 7.03
7.70
HYDRAULIC TABLES
367
Table 27.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.015-Continued

.00055 .00060.00065 | .00070.00075.00080.00085 | .00090 | .00095.00100
0.2 0.79
0.83
0.86 0.90
0.93
0.96
0.99 1.02
1.04
1.07
0.4
1.26
1.32
1.37
1.42
1.47
1.52
1.57
1.61
1.66
1.70
0.6
1.65
1.73
1.80
1.86
1.93
1.99
2.05
2.11
2.17
2. 23
0.8
2.00
2.09
2.18
2.26
2.34
2.41
2.49
2. 56
2.63
2.70
1.0
2.32
2.43
2.53
2.62
2.71
2.80
2.89
2.97
3.05
3. 13
1.2
2.62
2.74
2.85
2.96
3.06
3. 16
3.26
3.36
3.45
3.54
1.4
2.91
3.04
3. 16
3.28
3.40
3.51
3. 61
3.72
3.82
3.92
1.6
3.18
3.32
3.46
3.59 3.71
3.83
3.95
4.07 4.18
4.29
1.8
3.44
3.59
3.74
3.88 4.01
4. 15
4. 27
4.40
4.52
4.64
2.0
3.69
3.85
4.01
4.16
4.31
4.45
4.58
4.72
4.85
4.97
2.2 3.93
4.10
4. 27
4.43
4.59
4.74
4.89
5.03
5. 17
5.30
2.4
4.16
4. 35
4.53
4.70
4.86 5.02
5.18
5.33
5.47
5.62
2.6
4.39
4.59
4.78
4.96
5. 13
5.30
5.46
5.62
5.77
5.92
2.8
4.62
4.82
5.02
5. 21
5.39
5.57
5.74 5.90
6.07
6. 22
3.0
4.83
5.05
5.25
5.45
5.64
5.83
6.01
6.18
6.35
6.52
3.2
5.05
5.27
5.48
5.69
5.89
6.08
6.27
6.45
6.63
6.80
3.4 5.25
5.49
5.71
5.93
6. 13
6.34
6.53
6.72
6.90
7.08
3.6
5.46
5.70
5.93
6.16
6.37 6.58
6.78
6.98 7.17
7.36
3.8
5.66
5.91
6. 15
6.38
6.61 6.82 7.03
7.24 7.44
7.63
4.0 5.85 6.11
6.36
6.60
6.84
7.06
7.28 7.49 7.69
7.89
4.2 6.05
6.32
6.57
6.82
7.06
7.29
7.52 7.74
7.95
8.16
4.4 6.24
6.52
6.78
7.04
7.28
7.52
7.76 7.98
8.20
8.41
4.6 6.43
6.71
6.99
7.25
7.50
7.75
7.99
8.22 8.45 8.66
4.8 6.61
6.91
7.19
7.46
7.72
7.97
8.22
8.46 8.69
8.91
5.0 6.79
7.10
7.39
7.66
7.93
8. 19
8.45
8.69
8.93
9.16
5.2 6.97 7.28
7.58 7.87
8.14
8.41
8.67
8.92
9.16
9.40
5.4 7.15
7.47
7.77 8.07
8.35
8.62
8.89
9. 15
9.40
9.64
5.6 7.33
7.65
7.96
8.27 8.56
8.84
9.11
9.37
9.63
9.88
5.8
7.50
7.83
8. 15
8.46
8.76 9.05
9.32
9.59 9.86
10. 11
6.0
7.67
8.01
8.34
8.65
8.96 9.25
9.54 9.81
10.08
10.34
6.2
7.84
8. 19
8.52
8.85
9.16
9.46
9.75
10.03
10.31
10.57
6.4 8.01
8.36 8.71
9.04
9.35 9.66
9.96
10. 24
10.53
10.80
6.6
8.17
6.8 8.34
8.54 8.89 9.22
8.71 9.07 9.41
9.55 9.86
10.16
10.46
10.74
11.02
9.74 10.06
10.37
10.67
10.96
11. 24
7.0 8.50
8.88 9.24 9.59 9.93
10.25
10.57
10.88
11.17
11.46
7.5 8.90
9.30 9.68 10.04 10.40
10.74
11.07 11.39
11.70
12.00
8.0 9.29
9.71 10.10 10.48
10.85
11. 21
11.55 11.89
12. 21
12.53
8.5 9.68
10.11 10.52 10.92
11.30
11.67
12.03 12.38
12.72
13.05
9.0
10.05 10.50 10.93
11.34
11. 74
12. 12
12.50 12.86 13.21
13.55
9.5
13.33 13.70 14.05
10. 42 10.88 11.33
12.96
11.76
12.57
12.17
368
HYDRAULIC TABLES
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.015-Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040 .0045
.0050
T
0.2
1.07
1.31
1.52
1.69
1.86
2.00
2. 14
2.27
2.40
0.4
1.70
2.08
2. 41
2.69
2.95
3. 18
3.40
3.61
3.80
0.6
2.23
2.73
3. 15
3.52
3.86
4. 17
4.46
4.73
4.98
0.8
2.70
3.31
3.82
4. 27
4.68
5.05
5. 40
5. 73
6.04
1.0
3. 13
3.84
4. 43
4.95
5. 43
5.86
6.27
6.65
7.01
1.2
3.54
4.33
5.00
5.59
6. 13
6.62
7.08
7.50
7.91
1.4
3.92
4.80
5.54
6. 20
6. 79
7.33
7.84
8.32
8.77
1.6
4. 29
5.25
6.06
6. 78
7.42
8.02
8.57 9.09
9.58
1.8
4.64
5.68
6. 56
7.33
8.03
8.67
9.27
9.83
10.37
2.0
4.97
6.09
7.03
7.86
8.61
9.30
9.95
10.55
11. 12
2.2
5.30
6.49
7.49
8.38
9. 18
9.91
10.60
11. 24
11.85
2.4
5. 62
6.88
7.94
8.88
9.73
10.51
11. 23
11.91
12. 56
2.6
5.92
7.25
8.38
9.37
10.26
11.08
11. 85
12. 57
13.25
2.8
6. 22
7.62
8.80
9.84
10.78
11.64
12. 45
13. 20
13.92
3.0
6.52
7.98
9.22
10.30
11.29
12. 19
13.03
13.82
14.57
3.2
6.80
8.33
9.62
10.76
11.78
12.73
13.61
14. 43
15. 21
3.4.
7.08
8.68
10.02
11.20
12.27
13. 25
14. 17
15.03
15.84
3.6
7.36
9.01
10. 41
11.63
12.75
13.77
14. 72
15. 61
16.45
3.8
7.63
9.34
10.79
12.06
13.21
14. 27
15. 26
16. 18
17.06
4.0
7.89
9.67
11. 16
12.48
13. 67
14.77
15.79
16.75
17.65
4.2
8. 16
9.99
11. 53
12.89
14. 12
15. 26
16. 31
17.30
18. 24
4.4
8.41
10.30
11.90
13.30
14.57
15. 74
16.82
17.84
18. 81
4.6
8.66
10. 61
12. 25
13.70
15.01
16. 21
17.33
18.38
19.38
4.8
8.91
10.92
12. 61
14.09
15. 44
16.68
17.83
18.91
19.93
5.0
9. 16
11. 22
12.95
14.48
15.87
17. 14
18.32
19.43
20.48
5.2
9.40
11.52
13.30
14.87
16.29
17.59
18.81
19.95
21.03
5.4
9.64
11.81
13.64
15. 25
16.70
18.04
19.29 20.45
21.56
5.6
9.88
12.10
13.97
15.62
17.11
18.48 19.76 20.96
22.09
5.8
10. 11
12.39
14.30
15.99
17.52
18.92
20.23
21.45
22.61
6.0
10.34
12. 67
14.63
16.36
17.92 19.35
20.69
21.94
23. 13
6.2
10. 57
12.95
14.95
16.72
18.31 19.78 21.15
22.43
23.64
6.4
10.80
13. 23
15. 27
17.07
18.70
20.20
21.60
22. 91
24. 15
6.6
11.02
13.50
15.59
17.43
19.09
20.62
22.05
23.38
24.65
6.8
11. 24
13. 77
15.90
17.78
19.48
21.04
22.49
23.85
25.14
7.0
11.46
14.04
16. 21
18. 13
19.86 21.45
22.93
24. 32
25.63
7.5
12.00
14.70
16.98
18.98
20.79
22.46 24.01
25.46
26.84
8.0
12, 53
15.35
17.72 19.81
21.70
23.44 25.06
26.58
28.02
8.5 13.05
15.98
18.45
20.63
22.60
24.41
26.10
27.68
29.18
9.0
13.55
16. 60
19. 17
21.43
23.48 25.36
27.11
28.75 30.31
9.5
29.81 31.42
14.05
28. 10
17. 21
26. 29
19.87 22.22
24.34
HYDRAULIC TABLES
369
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.015-Continued

8
.0055
.0060
.0065 .0070 .0075 .0080 .0085
.0090
.0095 .0100
0.2
2.51
2.62
2.73 2.83 2.93
3.03
3. 12
3. 21
3. 30
3.39
0.4
3.99
4. 17
4.34 4.50
4.66
4.81
4.96
5. 10
5. 24
5.38
0.6
5. 23
5.46
5.68 5.90
6. 10
6.30
6.50
6.69
6.87
7.05
0.8
6. 33
6.61
6.88 7.14
7.39
7.64
7.87
8. 10
8.32
8.54
1.0
7.35
7.67
7.99
8.29
8.58
8.86
9. 13
9.40
9.66
9.91
1.2 8.30
8.67
9.02
9.36 9.69
10.01
10. 31
10.61
10.90
11. 19
1.4 9.19
9.60
10.00
10.37 | 10.74
11.09
11. 43
11.76
12.08
12.40
1.6 10.05
10.50
10.93
11.34 11.74
12. 12
12.49
12.86 13.21
13.55
1.8
10.87
11.35
11.82
12.26
12.70
13.11
13.52
13.91 14.29
14.66
2.0
11.66
12.18
12.68
13. 16
13.62
14.07
14.50 14.92
15.33
15.73
2.2
12.43
12.98
13. 51
14.02
14.51
14.99
15.45 15.90
16.33
16.76
2.4
13. 17
13.76
14.32
14.86
15.38
15.88
16.37
16.85
17.31
17.76
2.6
13.89
14.51
15. 10
15.67
16. 22
16.75
17.27
17.77
18. 26
18.73
2.8
14.60
15.24
15.87
16.47
17.04
17.60
18. 14
18.67
19.18
19.68
3.0
15.28
15.96
16.61
17.24
17.85
18.43
19.00
19.55 | 20.08
20.61
3.2
15.95
16. 66
17.34 18.00
18.63 19.24
19.83
20.41 20.97
21.51
3.4
16. 61
17.35
18.06 18.74
19.40
20.04
20.65
21.25
21.83
22.40
3.6
17.26
18.02 18.76 19.47
20.15
20.81
21.45
22.08
22.68
23.27
3.8
17.89
18.69
19.45 20.18
20.89
21.58
22.24
22.89
23.51
24. 12
4.0
18.51
19.34 20.13 20.89
21.62
22.33
23.01
23.68
24.33
24.96
4.2
19. 13
19.98 20.79
21.58
22.33 23.07
23.78
24.47
25. 14
25.79
4.4
19.73
20.60 21.45
22. 26
23.04
23.79
24. 52
25.24
25.93
26.60
4. 6
20.32
21.22 22.09
22.93
23.73
24.51
25.26
25.99
26.71
27.40
4.8
20.91
21.84 22.73
23.59
24. 41
25. 21
25.99
26.74
27.48
28. 19
5.0
21. 48
22.44
23.35
24. 24
25.09
25.91
26.71
27.48
28.23
28.97
5.2
22.05
23.03
23.97
24.88
25.75 26.60
27.41 28.21
28.98
29.73
5.4
22. 61
23.62
24. 58
25. 51
26.41 27.27
28.11
28.93
29. 72
30.49
5.6
23. 17
24.20
25.19
26. 14
5.8
23.72
24. 77
25.78
26.76
27.06
27.70 28.60
27.94 28.80
29.64
30.45
31.24
29.48
30.34
31.17
31.98
6.0
24. 26
25.34 26.37
27.37
28.33 29.26 30.16 31.03
31.88
32.71
6.2
24. 80
25.90 26.96 27.97
28.95
29.90
30.82
31.72 32.59
33.43
6.4
25.33
26.45 27.53 28.57
29.57
30.54
31.48
32.40
33.28
34. 15
6.6
25.85
27.00 28.10 29.16
30.19
31. 18
32. 14
33.07
33.97
34.86
6.8 26.37
27.54 28.67
29.75
30.79
31.80
32.78
33.73 | 34.66
35.56
7.0 26.88
7.5 28.15
8.0 29.39
8.5 30.60
9.0 31.79
28.08 29.23 30.33 31.39 | 32.42 | 33.42
33.42
29.40 30.60 31.76 32.87 33.95 35.00
30.69 31.95 33.15 34.32 35.44
34.39 35.33
36.25
36.01
37.00
37.96
36.53 37.59
38.62
39.63
31.96 33.27
33.20 34.56
34.52 35.73 36.90
35.86 37.12 38.34
38.04
39.14
40.22
41.26
39.52
40. 66
40.66
41.78
42.86
9.5 32.96 34.42 35.83 37.18 38.48
44.44
39.75
43.31
40.97
42. 16
370
HYDRAULIC TABLES
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.015-Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
0.2
3. 39
4.79
5.87
6.78
7.58
8.30
8.96
9.58
10.16
10.71
0.4
5.38
7.61
9.32
10.76
12.03
13. 17
14. 23
15. 21
16. 13
17.01
0.6
7.05
9.97
12. 21
14.09
15.76
17.26
18.65
19.93
21. 14
22.29
0.8
8.54
12.07
14.80
17.07
19.09
20.91
22.59
24. 15
25.61
27.00
1.0 9.91 14.01
17.16
19.81
22.15
24.27 | 26. 21
28.02 | 29.72
31.33
1.2
11.19 15.82
19.38
22.37
25.01
27.40 29.60
31.64 33.56
35.38
1.4 12.40
17.53 21.47
24.80
27.72
30.37 32.80
35.07
37.19
39. 21
1,6 13.55
19.17
23.47 27.10
30.30
33.20 | 35.86
35.86
38. 33
40.66
42.86
1.8 14.66
20.73
25.39 29.32
32.78
35.91
38.78
41.46
43.98
46.36
23.70
2.0 15.73 22.24 27.24 31.45
2.2 16.76
2.4 17.76 25.11
35.16
38.52
41.61
44. 48 | 47. 18
49.73
29.02 33.52
37.47
41.05
44. 34
47.40 50.27
52.99
30.76
35.52
39.71
43.50
46.98
50.23
53.27
56. 16
2.6 18.73
26.49
32. 44
37.46
41.89
45.88
49.56
52.98
56.20
59.23
2.8
19.68 27.83
34.09
39.36
44. 01
48. 21
52.07 | 55.66
59.04
62. 23
3.0
20. 61
29.14
35.69
41. 21
46.08
50.48
54. 52
58.28
61.82
65. 16
3.2
21.51
30.42
37.26
43.03
48. 10
52.70
56.92
60.85
64. 54
68.03
3.4 22.40
31.68 38.80
44.80
50.09
54.87
59.26
63.36
67.20
70.83
3.6
23.27
32.91
40.30 46.54
52.03
57.00
61.57
65.82
69.81
73.59
3.8
24. 12
34.12 41.78 48.25
53.94
59.09
63.83 68.23
72.37
76.29
4.0
24.96
35.30 43.24 49.93
55.82
61.15
66.05 | 70.61
74.89
78.94
4.2
25.79 36.47
44.67 51.58
57.66
63.17
68.23
72.94
77.37
81.55
4.4 26.60
37.62 46.07 53.20
59.48
65. 16
70.38
75. 24
79.80
84.12
4.6
27.40 38.75 47.46 54.80
61.27
67.12
72.50
77.50 82.20
86.65
4.8
28.19
39.87 48.83 56.38
63.03
69.05 74.58
79.73 | 84.57
89. 14
5.0 28.97 40.97 50.17 57.93
64.77
70.96
76.64
81.93 | 86.90
91.60
5.2 29.73
42.05
51.50 59.47
66.49
72.83
78.67
84.10 | 89.20
94.03
5.4 30.49
43. 12
52.81
60.98
68. 18
74.69 80.68
86.25 91.48
96.43
5. 6
31.24
44. 18
54. 11
62.48
69.86
76.52 | 82.65
88.36
93.72
98.79
5.8
31.98
45.23
55.39
63.96
71.51
78.33 84.61
90.45
95.94
101. 13
6.0
32.71
46. 26
56.66
65. 42
73.14
80.13 86.55
92.52 98. 13
103.44
6. 2
33.43
47.28
57.91
66.87
6. 4
34. 15
48.29
59.15
74.76 81.90
68.30 76.36 83.65
88.46
94.57 100.30
105.73
6.6
34.86
49.30 | 60.37
69.71
6.8 35.56
50.29 61.59
71. 12
90.35
77.94 85.38 92,22
79.51 87.10 94.08 100.57
96.59 102. 45
107.99
98.59 104. 57
110. 23
106. 67
112.44
7.0
7.5
8.5 41.26
9.0 42.86
36.25 51.27 62.79 72.50 81.06
37.96 53.68 65.74 75.92 84.88
8.0 39.63 56.04 68.64 79.25 88.61
58.35 71.47 82.52 92.26 101.07 109. 17
60.62 74. 24 85.73 95.85 104. 99 113. 41
88.80 95.91 102. 53
108.75
114.64
92.98 100.43 107.36
113. 87
120.03
97.07 104.84
112. 08
118. 88
125.31
116. 70
123. 78
130.48
121. 24
128. 59
135.55
9.5 44.44 62.84 76.97 88.87
140.52
99.36 |108.85 117.57 125. 69 |133.31
HYDRAULIC TABLES
371
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
.00005
.00010
n=.015—Continued

.00015.00020.00025.00030.00035.00040.00045.00050
CERRE 19722 222** *2288 A-SH** ---** ***** *****
10 3.25
4.60
5.63
6.50 7.27 7.96
8.60
9.20❘ 9.75
10.28
11
3.46
4.90
6.00
6.93
7.75
8.49
9. 17
9.80
10.39
10.96
12
3.67
5. 19
6.36
7.34
8. 21
8.99
9.71
10.39
11.02
11.61
13
3.87
5. 48
6.71
7.75
8.66
9.49
10.25
10.95
11. 62
12. 25
14
4.07
5.75
7.05
8. 14
9. 10
9.97
10.77
11. 51
12. 21
12.87
15
4. 26
6.03
7.38
8.52
9.53
10.44
11. 27
12.05
12.78
13.47
16
4.45
6.29 7.70
8.90
9.95
10.90
11.77
12.58
13. 34
14.07
4.63 6.55 8.02 9.26
10.36
11. 34
12. 25
13.10
13.89
14.65
18
4.81 6.80
8.33 9.62
10.76
11.79
12.73
13. 61
14.43
15. 21
4.99
7.05 8.64
9.98
11. 15
12.22
13. 20
14. 11
14.96
15.77
20
5. 16
7.30
8.94 10.32
11.54
12.64
13.66
14.60
15.48
16.32
21
5.33
7.54 9.24 10.66
11.92
13.06
14. 11
15.08 16.00
16.86
5.50
7.78 9.53
11.00
12.30
13.47
14. 55
15. 56 16.50 17.39
23
5.67
8.01
9.81
11.33
12.67
13.88
14.99
16.02❘ 17.00
17.92
24 5.83
8. 24
10. 10
11. 66
13. 04
14.28
15.42
16.49 | 17.49
18.43
25
5.99
8.47
10.37
11.98
13. 39
14. 67
15.85
16.94
17.97
18.94
26
6.15
8.69
10.65 12.30
13.75
15.06
16. 27
17.39
18. 44
19.44
27
6.30
8.92
10.92
12.61
14. 10
15. 44
16.68
17.83
18.91
19.94
6.46
9. 13
11.19
12.92
14. 44
15.82
17.09
18. 27
19.38
20.43
29
6.61
9.35
11.45
13. 22
14.79 | 16. 20
17.49
18.70
19.84
20.91
30
6.76
9.56
11. 71
13. 53
15. 12
16.57
17.89
19. 13
20. 29
21.39
31 6.91
9.78
11.97
13.83
15. 46
16.93
18. 29
19.55
20.74
21.86
32
7.06
9.99
12.23
14. 12
15. 79
17.30
18.68
19.97
21. 18
22.33
33
7.21
10. 19
12. 48
14.41
16. 12
17.65
19.07
20.38
21.62
22.79
34 7.35
10.40
12.73
14.70
16.44
18.01
19.45
20.79 22.06
23. 25
35
7.50
10.60
12.98
14.99
16.76
18.36
18.36
19.83
21.20 | 22.49
23.70
36 7.64
10.80 13.23
15. 27
17.08
18.71 20. 21
21.60 | 22.91
24. 15
37
7.78
11.00
13.47
15.56
17.39 19.05
20.58
22.00 23.33
24.60
38 7.92 11.20
13. 71
15.84
17.70 19.39 20.95
22.39 | 23.75
25.04
39
8.06
11.39
13.95
16. 11
18.01
19.73 | 21.31
22.79 24. 17
25.48
40
8. 19
11..59
14. 19
16.39
18.32
20.07 21.68
23.17 | 24. 58
25.91
41
8.33
11.78
14.43
16. 66
18.62
20.40
22.04
23.56 24.99
26.34
8.60
42 8.46
43
44 8.73
45 8.86 12.53
11.97
14. 66
16.93
18.93
20. 73
22.39
23.94 25.39
26.77
12. 16
14.89
17.20
19.23
21.06
22.75
24.32❘ 25.79
27. 19
12.35
15. 12❘ 17. 46
19.52
21. 39
23.10
24.69 26.19
27.61
15.35
17.72
19.82
21.71
23.45
25.07 26.59
28.03
46 8.99 12.72
15. 58
17.99
20.11
22.03
23.79
25.44❘ 26.98
28.44
47 9.12 12.90
15.80 18.25
20. 40
22.35
24. 14
25.80
27.37
28.85
49
48 9.25
9.38
13.08
16. 03
18.50
20.69
22.66
24.48
26.17
27.76
29.26
13. 27
16.25
18.76 20.97
22.98
24.82
26.53
28. 14
29.66
50
30.06
9.51
26.89 28.52
13.45
25.15
16.47 19.01 21.26
23.29
372
HYDRAULIC TABLES
Table 27.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v== r2/3g1/2
n=.015—Continued

.00055 .00060.00065 | .00070 | .00075 | .00080.00085.00090 | .00095 .00100
10 10.78
11 11.49
11.26
12.00
11.72 12.17
12.59 13.01
13.41 13.79 14. 17
14. 54
12.49 12.96
13.42
13.86
14.29
14.70
15. 10
15.49
12
12.18
12.72 13.24
13.74
14. 22
14.69
15. 14
15. 58
16.00
16.42
13
12.85
13.42
13.96
14.49
15.00
15.49
15.97
16.43
16.88
17.32
14
13.50
14. 10
14.67
15.23
15.76
16.28
16.78
17.26
17. 74
18.20
15
14. 13
14.76
15.36
15.94 | 16.50
17.04
17.57
18.08
18.57
19.05
16
14.75
15.41 16.04
16.64 17.23
17.79 18.34
18.87
19.39
19.89
17
15.36
16.04 16.70
17.33
17.94
18.53
19.10
19.65
20.19
20.71
18
15.96
16.67 17.35
18.00
18.63
19.25
19.84 20.41
20.97
21.52
19
16.54
17.28
17.98
18.66
19.32
19.95
20.57 | 21.16
21.74
22.31
20
17.12 17.88
18.61
19.31
19.99
20.65
21.28 | 21.90
| 22.50
23.08
21 17.68 18.47
22 18.24 19.05
19. 22
19.95 | 20.65
21.33
21.98
22. 62
23.24
23.85
19.83 20.58 | 21.30
22.00
22.68
23.33
23.97
24.60
23 18.79
24 19.33
19.63 20.43 | 21.20 | 21.94
20.19 21.01
22.66 23.36
24.04
24.69
25.34
21.81 22.57
23.31
24.03
24. 73
25.41
26.07
25
26
29
3282 SH*** ****
27 20.91 21.84
21.42
19.86 20.75 21.59
20.39 21.30 22.17
22.73
22.38 23.29
22. 41
23.20
23.96
24.69
25. 41
26.11
26.78
23.00 | 23.81
24.59 25.35
26.08
26.80
27.49
23.59 24.42
25.22
25.99
26.75
27.48
28. 19
24.17❘ 25.02
25.84
26.63
27.40
28. 16
28.89
21.93 22.91 23.84
24.74 25.61
26.45
27.26
28.05
28.82
29.57
34
24.38
30 22.43 23.43 24.39
31 22.93 23.95 24.92
32 23.42 24.46 25.46
33 23.90 24.97 25.99
25.47 26.51
35 24.86 25.96 27.02
25.31 | 26. 19
27.05
27.89
28.69
29.48
30.25
25.87 26.77
27.65
28.50
29.33
30. 13
30.91
26.42 | 27.35
28.24 29.11
29.96
30.78
31.58
26.97 27.91
27.51 28.47
28.83
29.72 30.58
31.41
32.23
29.41
30.31 | 31. 19
32.05
32.88
28.04 29.03
29.98
30.90 31.80
32.67
33.52
36
25.33 26.46 27.54
28.58
29.58
30.55
31.49 32.40
33.29
34. 16
37 25.80 26.94 28.04
29.10
30. 12
31.11
32.07
33.00 33.90
34.79
38
39
26.26 27.43 28.55 29.63
26.72 27.91 29.05 30.14
30.67
31.67
32.65
33.59 34.51
35.41
31. 20
32. 22
33.22
34. 18
35.12
36.03
40 27.17 28.38 29.54 | 30.66
41 27.62 28.85 30.03
31.73
32.77
33.78
34.76 | 35.71
36.64
31.16 32.26
33.32
34.34
35. 34
36.31
37.25
42 28.07
29.32 30.52
31.67 | 32.78
33.86 34.90
35.91
36.89
37.85
43 28.52
29.78 31.00
32. 17
33.30
34.39
35.45 | 36, 48
37.48 38.45
44
28.96
30.24 31.48
32.67
33. 81
34.92 | 36.00 37.04
38.06 39.04
45
29.39
30.70
31.95
33. 16
34.32
35.45 36.54
37.60
38.63
39.63
46 29.83
31. 15
32.43 | 33.65
34.83
35.97
37.08
38. 16
39.20
40.22
47 30.26
31.60
32.89
34. 14
35. 33
36.49
37.62
38.71
39.77
40.80
48 30.69
32.05 33.36
34.62
35.83
37.01
38. 15
39.25 40.33 41.38
49 31.11 32.49 33.82 35. 10
36.33
37.52
38.68
39.80
40.89 41.95
50 31.53
38.03 39.20 40.34 41.44 42.52
32.93 34.28 35.57
36.82
HYDRAULIC TABLES
373
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= · r2/3g1/2
n
n-.015-Continued

.0010
.0015 .0020
.0025
.0030
.0035
.0040
.0045
.0050
13
18
21
23
25
26
31
32
PIRKI 4-2-2 22224 82282 872
10
14.54 17.81 20.56
22.99
25. 19
27.20
29.08
30.85
32. 51
11
15.49 18.98 21.91
24.50
26.84
28.99
30.99 32.87
34. 65
12 16.42
20.11
23.22
25.96
28.44
30.72
32.84 34.83
36.72
17.32
21. 21
24.49
27.39
30.00
32.40
34.64
36.74
38.73
14
18.20
22.29
25.74 28.77
31.52
34.04
36.40
38.60
40.69
15
19.05
23.34
26.95
30.13
33.00
35.65
38. 11
40.42
42. 61
16 19.89 24.36
28. 13
31.45
34. 45
37.21
39.78
42.20
44. 48
17 20.71
25.37
29.29
32.75
35.87
38.75
41.42
43.94
46.31
21.52
26.35
30.43
34.02
37.27
40.25
43.03
45.64
48. 11
19
22.31
27.32
31, 55
35. 27
38.64
41.73
44.61
47.32
49.88
20
23.08
28.27
32.64
36.50
39.98
43. 18
46. 16
48.97
51.61
23.85
29.20
33.72
37.70
41.30
44.61
47.69
50.58
53.32
24. 60
25.34
30. 12
34.78
38.89
42.60
46.02
49. 19
52. 18
55.00
31.03
35.83
40.06
43.88
47.40
50.67
53.75
56.65
26.07
31.92
36.86
41. 21
45. 15
48.76
52. 13
55. 29
58.28
26.78 32.80 37.88
42.35
46.39
50. 11
53. 57
56.82
59.89
27.49 33.67 38.88
43.47
47.62
51.44
54.99
58.32
61.48
27
28.19 34.53 39.87
44.58
48.83
52.75
56.39
59.81
63.05
28.89 35.38 40.85
45.67
50.03
54. 04
57.77
61.28
64.59
29 29.57 36.22 41.82
46.76
51. 22
55.32
59. 14
62.73
66. 12
30
30.25 37.04 42.78
47.82
52.39
56.59
60.49
64. 16
67.63
30.91 37.86 43.72
48.88
53.55
57.84
61.83
65.58
69. 13
31.58
38.67
44.66
49.93
54.69
59.07
63.15
66.98
70.61
33
32. 23
39.47
45.58
50.96
55.83
60.30
64. 46
68.37
72.07
34
32.88
40.27
46.50 51.99
56.95
61.51
65.76
69.75
73.52
35
33.52
41.05
47.40
53.00
58.06
62. 71
67.04
71. 11
74.95
36
34. 16
41.83
48.30
54.00
59.16
63.90
68. 31
72.46
76.37
37
34.79
42.60
49. 19
55.00
60. 25
65.08
69.57
73.79
77.78
38
35. 41
43.37
50.08
55.99
61.33
66.24
70.82
75. 11
79. 18
39
36.03
44. 12
50.95
56.96
62.40
67.40 72.06
76.43
80.56
40
36.64
44.88 51.82 57.93
41 37.25 45.62 52.68 58.90
42 37.85 46.36 53.53 59.85
63.46
68.55 73.28
77.73
81.93
64.52 69.69 74.50
79.02
- 83.29
65.56 70.82
75.70
80.30
84.64
43
38.45 47.09 54.38
60.80
66.60
71.94
76.90
81.57
85.98
44
39.04
47.82 55.22
61.74
67.63
73.05
78.09
82.83
87.31
45
39.63
48.54 56.05 62.67
68.65
74. 15
79.27 84.08
88.62
46
40. 22
49.26 56.88 63.59
69.66
75.24
80.44
85.32
89.93
47
40.80
49.97 57.70
64.51
70.67
48 41.38
50.68 58.52
65. 42
49
41.95
51.38 59.33
66.33
76.33
71.67 77.41 82.75
72.66 78.48
81.60 86.55
91.23
87.77
92.52
83.90 88.99
93.80
50 42.52
95.07
52.07
90. 19
60. 13
79.54 85.04
67.23
73.64
374
HYDRAULIC TABLES
Table 27.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.015—Continued

8
.0055
.0060 .0065
.0070 .0075 .0080 .0085 .0090 .0095 .0100
go
10
11
12
13
15
17
18
19
20
21
26
27
PIRRI B0009 2223* ***** O**** ---88 *****
34.10
35. 62 37.07
38.47 39.82
41.13
42.39
43.62 44.82 45.98
36. 34
37.95
39.50
41.00
42.43
43.83
45. 18
46.48
47.76 49.00
38.51
40. 22
41.86
43.44
44.97
46. 44
47.87
49.26 50.61
51.93
40.62
42. 43
44. 16
45.83
47.43
48.99
50.50
51.96
53.38
54. 77
14
42.68
44. 57
46.39
48.15 49.84
51.47
53.05
54. 59
56.09
57.55
44.69
46.67 48.58 50.41 52.18
53.89
55.55
57.16
58.73
60. 25
16
46. 65
48.72 50.71 52.63
54.48
56.26
57.99
59.68
61.31
62.90
48.57
50.73
52.81
54.80
56.72
58.58
60.39
62. 14
63.84
65. 50
50.46
52.70
54.86
56.93
58.93
60.86 62.73
64.55
66.32
68.04
52.31
54. 64
56.87
59.02
61.09
63.09
65.03
66.92
68.75
70.54
54. 13
56. 54
58.85
61.07
63. 21
65.29 67.30
69.25
71. 14
72.99
55.92
58.41
60.79
63.09
65.30
67.45 69.52
71.54
73.50
75.41
57.68 60.25 62.71 65.08
67.36
69.57
71.71 73.79
75.81
77.78
59.42 62.06 64.60
67.03
69.39
71.66
73.87 76.01 78.09
80.12
24
61.13
63.85 66.45
68.96
71.38 73.72
75.99
78.20
80.34
82.43
25
62.82
65. 61
68.29 70.87 73.35
75.76
78.09 80.35
82.56 84.70
64. 48
67.35
70.10 72.74 75.30
77.77
80.16 82.48
84.74
86.94
66. 12
69.06
71.88 74.60 77.21
79.75
82.20
84.58]
86.90
89.16
28
67.75
70.76
73.65 76.43 79.11
81.70]
84.22
86.66
89.04
91.35
29
69.35
72.43 75.39
78.24 80.98
83.64
86.21
88.71
91. 14
93. 51
30
70.93 74.09 77.11 80.02
82.83
85.55
88.18
90.74
93. 23
95.65
31 72.50 75.73 78.82 81.79
84.66
87. 44
90. 13
92.74
95. 29
97.76
32
74.05
77.35 80.50 83.54 86.48
89.31
92.06
94.73
97.32
99.85
33
75.59
78.95 82.17 85.27
88.27
91.16
93.97 96.69 99.34 101.92
34
77. 11
80.54 83.82 86.99
90.04
92.99
95.86 98.64| 101.34| 103.97
35
78.61
82.11 85.46 88.69
91.80
94.81
97.73 100.56 103.32 106.00
36
80.10 83.66 87.08 90.37
93.54
96.61
99.58
102.47
105. 27
108.01
37
38
83.04
81.58 85.21 88.69 92.03
86.73 90.28
95. 26
98.39
101. 42
104. 36
107. 22
110.00
39 84.49 88.25 91.85
93.68
95.32
96.97 100.15
103. 23
106. 23
109. 14
111.97
98.67 101.90 105.04
108.08
111.05 113.93
40
85.93
89.75 93.42
42
88.77
43
90. 18
98.03 101.73 105. 30
96.94 100.35 103. 64] 106.83 109.92] 112.94 115.87
41 87.36 91.24 94.97 98.55 102.01 105.36 108.60) 111.75 114.81 117.79
92.72 96.51 100.15 103.66 107.06
94. 19
108. 76
44
91.57
95.64
99.54 103.30 106.93)
110. 44
110.36 113. 56 116.67 119. 70
112.10 115.35 118. 51 121.59
113.83 117. 13
120.34 123.47
45
92.95
97.08 101.05 104.86
108. 54
112.10
46
94.32
98.52 102. 54 106. 41
47
95.68
48
97.04
49
98.38
113.76
99.94 104.02 107.95 111.74 115. 40
101.35 105.49 109.47 113.31 117.03
102.75 106.95 110.99 114.88 118. 65
110. 14
115. 55 118.90 122. 16
117.26 120.66 123.96 127. 18
118.95 122.40 125.75 129.02
120.63 124.13 127.53 130.84
122.30 125.85 129. 30 132. 66
125. 33
50
104. 15 108. 40 112.49 116. 44 120. 26 123.96 127.55 131. 05 134. 45
99.71
HYDRAULIC TABLES
375
Table 27.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.015—Continued

T
·
.01
.02
.03
.04
.05
.06
.07
.08
08.09 .10
10
45.98
65.03 79.64
12
13
16
18
20
21
26
27
ER== ===-= 2223* 22282 8788* 38588 ***** ***** 8
11 49.00
51.93
69.30 84.87
73.43
91.97 102. 82]
98.00 109.57
98.00 109.57 120.02
89.94 103.85 116. 11
112. 63
121.66
130.06 137.95) 145. 41
129. 64
138. 59 147.00 154.95
127. 19
137.38
146.87
155. 78
164. 20
54.77
77.46
94.87 109.54 122. 47
134. 16
144. 91
154.92
164.32
173. 20
14
57.55
81.38 99.67 115.09
128. 68
140.96
152. 25
162.76
172. 64
181.98
15
60.25
85.21 104.36 120. 51
134. 73
147. 59
159. 42
170.43 180.76 190.54
62.90
88.96 108.95 125.81
140.66
154.08
166.43
177.92 188.71 198. 92
17 65. 50
92.63 113.45 131.00 146. 46
160.44
173. 29
185.26 196.49 207.12
68.04
96.23 117.85] 136.08 152. 15
166.67
180.02
192.45
204.13| 215. 17
19 70.54
99.76 122.18 141.08
157.73
172.78
186. 63
199. 51
211. 62
223.06
72.99
103.23 126. 43
145.99
163. 22
178.80
193. 12
206. 46
218.98
230.82
75.41 106.64 130.61
150.81
168. 61
184. 71
199. 51
213. 28
226. 22
238. 46
77.78
110.00 134. 72
155. 56
173. 92
190. 52
205. 79
220.00
233. 34
245. 97
24
80. 12
82.43
113.31 138.77 160. 24
179.16
196. 26
211.98
226.62
240.36
253. 36
116.57 142.77 164.85
184.31
201. 90
218.08]
233. 14
247.28
260.66
25 84.70
119.79 146.71
169. 40
189. 40
207. 47
224. 10
239. 57
254. 10
267.85
86.94
122.96 150. 59
173. 89
194. 41
212.97
230.03
245.92
260. 83
274.94
89.16
126.09 154. 43
178. 32
199. 37
218. 40
235.90
252. 18
267, 48
281.95
91.35
129. 19
158. 22
182. 70
204.26
223. 76
29
93. 51
132.24 161.96
187.02 209.10
229.05
241.68 258.37 274.04 288.87
247.41| 264.49 280.53 295.71
30 95.65
31
32
99.85
33 101.92
34 103.97
135. 27 165.67
97.76 138. 26 169.33 195.52 218.60
141. 21 172.95 199. 71 223.28
144. 14 176.53 203.85 227.91
147.04 180.08 207.94 232. 49
191.30 213. 88
234. 29
253.06 270. 53
286.94 302.46
239.47 258.65
244. 59| 264. 19|
249.66】 269.66
254. 68 275.08
276. 51
282.43
293. 29
309.15
299. 56|
315. 76
288.28 305.77 322.31
294.08 311.91 328. 79
106. 00
149.91 183. 60 212.00
237.02
259. 65
280. 45
299.81
318.00
335. 20
36
108. 01
152.75 187.08 216.02
241. 52
264. 57
285. 77
305. 50
324. 03
341. 56
37
110.00
155.56] 190. 53 220.00 245.97
269.45]
291.03
311. 13
330.00 347.85
39
111.97 158.35 193. 94 223.95 250.38
113.93 161.12 197.33 227.86 254.75 279.07
274. 28
296. 25
316. 71
335.92
354. 09
301.43
322.24 341.79 360. 28
41
43
44
40 115.87 163.86 200.69 231.74 259.09 283.82 306. 56
117.79 166.58 204.02 235. 58 263. 39 288.53 311.65
42 119.70 169.28 207.33 239.40 267.66 293.20 316.70 338. 56
121.59 171.96 210.60 243. 18 271.89 297.84 321.70 343.92
123.47 174. 61 213.86 246.94) 276.09 302.44 326.67 349.23 370.41 390.45
327.73
347.61
366. 41
333. 17
353. 38
372.49
359. 10
378.52
364. 78
384.51
45 125.33
47
48
49
177.25 217.09| 250.67| 280.26| 307.00| 331.60 354.50 376.00 396.34
46 127.18 179.87 220. 29 254.37 284. 39| 311.54 336.50 359. 73 381.55 402.19
129.02 182.46 223.47 258.04 288. 50
130.84 185.04 226.63 261.69 292.58
132.66 187.60 229.77 265. 31 296.63
316.03) 341.36) 364.93| 387.06 408.00
320.50 346. 18 370.08 392.53| 413.77
324. 94 350.97 375. 21 397.97 419. 49
134.45 190.15 232.88 268.91 300.65 329.34 355. 73 380.29 403. 36 425. 18
376
HYDRAULIC TABLES
Table 28.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n=.0175
N



.00005 | .00010 | |
.00015 00020.00025.00030.00035.00040.00045 | .00050
8
T
0.2
0.4
0.6
00 ED 1 2
¿¿¿ë ritiririri sisisisici eð eð eð eð eå di di di di si
0.21
0.29
0.36 0.41
0.46 0.50 0.54
0.58
0.62 0.65
.33
.46 .56
.65
.73
.80
.86
.92
.98
1.03
.43
.60
.74
.85
.96
1.05
1.13
1. 21
1.28
1.35
0.8
.52
.73
.90
1.03
1.16
1.27
1.37
1.46
1.55
1.64
1.0
1.2
1.4
1.6
1.8
2.0
0248 AD
.60
.85
1.04
1.20 1.34
1.47
1.59
1.70
1.80
1.90
.68
.96
1. 17
1.36
1.52 1.66
1.79
1.92
2.03
2. 14
.75
1.06
1.30
1.50
1.68 1.84
1.99
2.13
2.25
2.38
.82
1. 16
1.42
1.64 1.84
2.01
2.17
2.32
2.46
2.60
.89
1.26
1.54
1.78
1.99 2.18
2.35
2. 51
2.67
2.81
.95
1.35
1.65 1.91
2.13
2.33
2.52
2.70
2.86
3.01
2.2
1.02
1.44
1.76
2.03
2.27
2.49
2.69
2.87
3.05
3. 21
2.4
1.08
1.52
1.86
2.15
2.41 2.64
2.85
3.04
3. 23
3.40
2.6
1. 14
1.61
1.97
2.27
2.54 2.78
3.00
3. 21
3. 41
3.59
2.8
1. 19
1.69
2.07
2,39
2.67 2.92
3.16
3.37
3.58
3.77
3.0
1.25
1.77
2. 16
2.50
2.79 3.06
3.30
3. 53
3.75
3.95
3.2 1.30
1.84
2. 26
2.61
2.92 3.19
3.45
3.69
3.91
4. 12
3.4
1.36
1.92
2.35
2.72
3.04
3.33
3.59
3.84
4.07
4. 29
3.6 1.41
1.99
2.44
2.82
3.15 3.45
3.73
3.99
4.23
4. 46
3.8
1.46
2.07
2.53
2.92
3.27
3.58
3.87
4. 14
4.39
4. 62
4.0
1.51
2.14
2.62
3. 03
3.38
3.71
4.00
4. 28
4. 54
4.78
4.2
1.56
2. 21
2.71
3.13
3.50
3.83
4. 14
4. 42
4.69
4.94
4.4 1.61
2.28
2.79
3. 22
3.61
3.95
4.27
4.56
4.84
5.10
4.6
1.66
2.35
2.88
3.32
3.71
4.07
4.39
4.70
4.98
5.25
4.8
1.71
2.42
2.96
3.42
3.82
4. 19
4.52
4.83
5.13 5.40
5.0
1.76 2.48
3.04
3. 51
3.93
4.30
4.65
4.97
5.27
5.55
5.2 1.80
2.55
3. 12
3.60
4.03
4. 41
4.77
5. 10
5.41
5.70
5.4
1.85
2.61
3. 20
3.70
4. 13
4. 53
4.89
5. 23
5. 54
5.84
5.6
1.89
2.68
3. 28
3.79
4. 23
4.64
5. 01
5.36
5.68
5.99
5.8
1.94
2.74
3.36
3.88
4.33
4.75
5. 13
5.48
5.81
6. 13
6.0
1.98
2.80
3. 43
3.97
4. 43
4.86
5.25
5.61
5.95
6.27
6.2
2.03
2.87
3. 51
4.05
4.53
4.96
5.36
5.73
6.08
6. 41
6.4
2.07 2.93
3.58
4. 14
4.63
5.07
5. 48
5.85
6. 21
6.55
6.6
2.11
2.99
3.66
4. 23
4.72
5. 17
5. 59
5.98
6.34
6. 68
6.8
2. 16
3.05
3.73
4.31
4.82
5.28
5.70
6. 10
6.47
6.82
7.0
8.0
8.5
9.0
O LA O LA O
2.20
3. 11
3.81
4.39
4.91
5.38
5.81
6. 21
6.59
6.95
7.5 2.30
3.25
3.98
4.60
5. 14
5.64
6.09
6. 51
6.90
7.28
2.40
3.40
4. 16
4.80
5.37
5.88
6.35
6.79
7.21
7.59
2.50
3.54
4.33
5.00
5.59
6. 13
6. 62
7.07
7.50
7.91
2.60 3.67 4.50
5. 20
5.81
6.36
6.87
7.35 7.79
8. 22
9.5
8.52
2.69
7.62 8.08
3.81 4.66
7.13
5.39
6.60
6.02
HYDRAULIC TABLES
377
Table 28.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.0175—Continued

.00055 .00060 | .00065.00070.00075.00080.00085.00090.00095 .00100
8
|
T
0.2
0.68
0.71
0.74
0.77
0.80
0.82
0.85
0.87
0.90
0.92
0.4 1.08
1. 13
1.18
1. 22
1. 26
1.30
1. 34
1.38
1.42
1.46
0.6
1.42
1.48
1.54
1.60
1.65
1.71
1.76
1.81
1.86
1.91
0.8
1.72
1.79
1.87
1.94
2.00
2.07
2. 13
2.20
2. 26
2.31
1.0
1.99
2.08
2. 16
2.25
2.33
2.40
2.48
2.55
2.62
2.69
1.2
2.25
2.35
2. 44
2.54
2. 63
2.71
2.80
2.88
2.96
3.03
1.4
2.49
2.60
2.71
2.81
2.91
3.01
3. 10
3. 19
3.28
3.36
1.6 2.72
2.85
2.96
3.07
3. 18
3.29
3.39
3.48
3.58
3.67
1.8
2.95
3.08
3.20
3.32
3. 44
3.55
3.66
3.77
3.87
3.97
2.0
3. 16
3.30
3. 44
3.57
3.69
3.81
3.93
4.04
4. 15
4. 26
2.2
3.37
3.52
3.66
3.80
3.93
4.06
4. 19
4.31
4. 43
4. 54
2.4
3.57
3.73
3.88
4.03
4. 17
4. 31
4. 44
4.57
4.69
4.81
2.6
3.77
3.93
4.09
4. 25
4.40
4. 54
4.68
4.82
4.95
5.08
2.8
3.96
4. 13
4.30
4. 46
4.62
4. 77
4.92
5.06
5.20
5.33
3.0
4. 14
4.33
4.50
4. 67
4.84
5.00
5.15
5.30
5. 44
5. 59
3.2
4. 32
4.52
4.70
4.88
5.05
5. 22
5.38
5.53
5.68
5.83
3.4
4.50
4.70
4.90
5.08
5. 26
5. 43
5.60
5.76
5.92
6. 07
3.6
4.68
4.89
5.09
5. 28
5.46
5.64
5.82
5.98
6. 15
6. 31
3.8
4.85
5.06
5. 27
5.47
5.66
5.85
6.03
6. 20
6. 37
6. 54
4.0
5.02
5. 24
5.46
5.66
5.86
6.05
6. 24
6.42
6.60
6.77
4.2
5. 18
5. 41
5.64
5.85
6. 05
6.25
6. 44
6.63
6.81
6.99
4.4
5.35
5.59
5.81
6.03
6. 24
6.45
6. 65
6.84
7.03
7.21
4. 6
5. 51
5.75
5.99
6. 21
6.43
6.64
6.85
7.05
7.24
7.43
4.8
5.67
5.92
6. 16
6. 39
6.62
6.83
7.04
7.25
7.45
7.64
5.0
5.2
5.4
5.6
5.8
= 2 ** ES AD
5.82
5.98
6.08
6. 33
6. 57
6.80
7.02
7.24
7.45
7.65
7.85
6. 24
6. 50
6.74
6.98
7. 21
7.43
7.65 7.86
8.06
6. 13
6.40
6.66
6.92
7.16
7.39
7.62 7.84
8.06
8.27
6.28
6.56
6.83 7.08
7.33
7.57
7.81
8.03
8.25
8.47
6.43
6.71 6.99
7.25
7.51
7.75
7.99
8. 22
8.45
8.67
6.0
6.2
6. 58
6.87 7.15
7.42
7.68
7.93
8.17
8.41 8.64
8.87
6.72
7.02 7.31
7.58
7.85
8.11
8.36
8.60
8.83
9.06
6.4 6.86
7.17 7.46
7.74
8.02
8. 28
8.53
8.78
9.02
9.26
6.6 7.01
7.32 7.62
7.90
8.18
8. 45
8.71
8.96
9. 21
9.45
6.8 7.15
7.47 7.77 8.06
8.35
8.62
8.89
9. 14
9.39
9.64
7.0
7.29
7.61 7.92 8.22
8.51
8.79
9.06
9.32
9.58
9.83
7.5
8.0
8.5
9.0
LOD O
7.63 7.97
8.29 8.61 8.91
9.20
9.49
9.76
10.03
10.29
7.97 8.32 8.66 8.99
9.30
9. 61
9.90
10. 19
10.47
10.74
8.29 8.66 9.02 9.36 9.69
8.62 9.00 9.37 9.72 10.06
10.00
10.31
10.61 10.90
11. 18
10.39
10.71
11.02 | 11.32
11.62
9.5
8.93
9.33 9.71 10.08 10.43 10.77
10.77 11.10 11.43 11.74
12.04
563189°-44- -25
378
HYDRAULIC TABLES
Table 28.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/3g1/2
n=.0175—Continued


8
.0010
.0015
.0020
.0025 .0030
.0035 .0040
.0045
.0050
T
0.2
0.92
1.12
1.30
1.45 1.59
1.72
1.84
1.95
2.05
0.4
1.46
1.79
2.06
2.30
2.52
2.73
2.92
3.09
3.26
0.6
1.91
2.34
2.70
3.02
3.31
3.57
3.82
4.05
4. 27
0.8
2.31
2.83
3.27
3.66
4. 01
4. 33
4. 63
4.91
5. 17
1,0
2.69
3.29
3.80
4. 25
4. 65
5.02
5.37
5.70
6.00
1.2 3.03
3.71
4. 29
4.79
5.25
5.67
6.06
6. 43
6.78
1.4 3.36
4. 12
4.75
5. 31
5.82
6.29
6.72
7.13
7.51
1.6
3.67
4.50
5. 19
5.81
6.36
6.87
7.35
7.79
8. 21
1.8
3.97
4.87
5.62
6.28
6.88
7.43
7.95
8.43
8.88
2.0
4. 26
5. 22
6.03
6.74
7.38
7.97
8.53
9.04
9.53
2.2
4. 54
5.56
6.42
7.18
7.87
8.50
9.08
9.64
10. 16
2.4
4.81
5.90
6.81
7.61
8.34
9.01
9.63
10.21
10.76
2.6
5.08
6. 22
7.18
8.03
8.79
9.50
10.15
10.77
11.35
2.8
5.33
6. 53
7.54
8.43
9.24
9.98
10.67
11. 32
11.93
3.0
5.59
6.84
7.90
8.83
9.67
10.45
11.17
11.85
12.49
3.2
5.83
7.14
8. 25
9.22
10.10
10.91
11.66
12.37
13.04
3.4
6.07
7.44
8.59
9.60 10.52
11.36
12. 14
12.88
13.58
3.6
6.31
7.72
8.92
9.97
10.92
11.80
12. 61
13.38
14.10
3.8
6. 54
8.01
9.25
10.34
11.33
12.23
13.08
13.87
14.62
4.0
6.77
8.29
9.57
10.70
11.72
12.66
13. 53
14. 35
15. 13
4.2
6.99
8.56
9.89
11.05
12.11
13.08
13.98
14. 83
15. 63
4.4 7.21
8.83 10.20
11.40
12.49
13.49
14. 42
15.30
16.12
4.6
7.43
9.10
10.50
11.74
12.86
13.89
14.85
15.76
16.61
4.8
7.64
9.36
10.81
12.08
13. 23
14.29
15. 28
16. 21
17.09
5.0
7.85
9.62
11.10
12. 41
13.60
14.69
15.70
16.66
17.56
5.2
8.06
9.87
11.40
12.74
13.96
15.08
16. 12
17.10
18.02
5.4
8.27
10. 12
11.69
13.07
14.32
15. 46
16.53
17.53
18.48
5.6
8.47
10.37
11.98
13.39
14. 67
15.84
16.94 17.96
18.93
5.8
8.67
10.62
12. 26
13.71
15.01
16. 22
17.34
18.39
19.38
6.0
8.87
10.86
12. 54
14.02
15. 36
16.59
17.73
18.81
19.83
6.2
9.06
11. 10
12.82
14. 33
15.70
16.95
18. 12
19. 22
20.26
6.4
9.26
11.34
13.09
14.64
16.03
17.32
18.51
19.64
20.70
6.6
9.45
11.57
13.36
14.94
16.36
17.68 18.90
20.04
21. 13
6.8
9.64
11.80
13.63
15. 24
16.69
18.03
19.28
20.45
21.55
7.0 9.83
12.03
13.90
15.54
17.02
18.38
19. 65
20.84
21.97
7.5
10.29
12. 60
14.55
16. 27
17.82
19.25
20.58
21.83
23.01
8.0
10.74
13. 15
15. 19
16.98
18.60
20.09
21.48
22.78
24.02
8.5
11. 18
13.70
15.82
17.68
19.37
20.92
22.37
23.72
25. 01
9.0
11.62
14. 23
16.43
18.37
20. 12
21.74
23. 24
24.65
25.98
9.5
26.93
12.04
25.55
14.75 17.03
24.09
19.04
22.53
20.86
HYDRAULIC TABLES
379
Table 28.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
î
n=.0175—Continued

Co
.0055
.0060
.0065
.0070 .0075 .0080
.0085 .0090 .0095
.0100
0.2 2. 15
2.25
2. 34
2.43
2. 51
2.60
2.68
2.76 2.83
2.90
0.4
3.42
3.57
3.72
3.86
3.99
4. 12
4. 25
4.37 4.49
4. 61
0.6
4.48
4.68
4.87
5.05
5. 23
5.40
5. 57
5.73
5.89
6.04
0.8
5.43
5.67
5.90
6. 12
6.34
6.55
6.75
6.94
7.13
7.32
1.0
6.30
6.58
6.85
7.10
7.35
7.59
7.83
8.06
8.28
8.49
1.2 7.11
7.43
7.73
8.02
8.30 8.58
8.84
9.10
9.35
9.59
1.4
7.88
8.23
8.57
8.89
9.20
9.50 9.80
10.08
10.36
10.63
1.6
8.61 9.00
9.37
9.72
10.06
10.39
10.71
11.02
11. 32
11.62
1.8
9.32
9.73
10. 13
10. 51
10.88
11. 24
11.58
11.92
12.25
12.56
2.0
10.00
10.44
10.87
11. 28
11.67
12.06
12.43
12.79
13. 14
13.48
2.2
10.65
11. 13
11.58
12.02
12.44
12.85
13. 24
13. 63
14.00
14.36
2.4
11. 29
11.79
12.27
12. 74
13. 18
13. 61
14.03
14. 44
14.84
15. 22
2.6
11.91
12. 44
12.94
13.43
13.90
14. 36
14.80
15. 23
15, 65
16.06
2.8
12. 51
13.07
13.60
14. 11
14.61
15.09
15.55
16.00
16.44
16.87
3.0
13. 10
13.68
14. 24
14.78
15.30
15.80
16.28
16.76
17. 22
17.66
3.2
13.68
14. 28
14.87
15. 43
15.97
16.49
17.00
17.49
17.97
18.44
3.4
14. 24
14.87
15.48
16.06
16.63
17. 17
17.70
18. 21
18. 71
19. 20
3.6
14.79
15.45
16.08 16.69
17.27
17.84
18.39
18.92
19. 44
19.95
3.8 15.34
16.02
16.67 17.30
17.91
18.49
19.06
19. 62
20.15
20. 68
4.0
15. 87
16.57
17.25 17.90
18.53
19. 14
19.73
20.30
20.86
21.40
4.2
16.39
17. 12
17.82
18.49
19. 14
19.77
20.38 20.97
21.54
22.10
4.4
16.91
17.66
18.38
19.08
19.75
20.39
21.02
21.63
22. 22
22.80
4. 6
17.42
18. 19
18.94
19. 65
20.34
21.01
21.65
22.28
22.89
23.49
4.8
17.92
18.72
19.48
20.22
20.93
21.61
22. 28
22.92
23.55
24. 16
5.0
18.41
19. 23
20.02
20.77
21.50
22.21
22.89
23.55
24.20
24.83
5.2 18.90
19.74
20.55
21.32
22.07
22.80
23.50
24. 18
24.84
25.49
5. 4
19.38
20. 25
21.07 21.87
22.63
23.38
24. 10
24.80
25.47
26. 14
5.6
19.86
20.74 21.59
22.40
23. 19
23.95
24.69
25.40
26.10
26.78
5.8
20.33 21.23
22.10 22.93
23.74
24. 52
25. 27
26.00
26.72
27.41
6.0
20.79 21.72 22.61
23.46
24. 28
25.08
25.85 26.60 27.33
28.04
6.2
21.25 22.20
23.10 23.98
24.82
25. 63
26.42 27.19 27.93
28.66
6. 4
21.71
6.6
22.16
6.8
22.60
23.61
22.67 23.60 24.49 25.35
23.14 24.09 25.00 25.87
24.57 25.50 26.39
26. 18
26.99 27.77 28.53
29.27
26.72
27.55 28.34 29.12
29.88
27. 26
28.10
28.91 29.71
30.48
7.0
23.04
24.07
25.05
26.00
26.91
27.79 28.65 29.48 30.29
31.07
7.5
24. 13
25.20
26. 23
27.22
28. 18
29.10 30.00
30.87 31.71
32.54
8.0
25. 19
26.31
27.38
28.42 29.42
30.38
31.31
32. 22 | 33. 11
33.97
8.5
26.23
27.39
28.51 29.59 30.63
31.63
32. 61
33.55 34.47
35.37
9.0
27.25 28.46 29.62
30.74 31.82
32.86
33.87
34.85
35.81
36.74
9.5
38.09
28.25
37.12
29.50 30.71
35. 12 36. 13
31.87 32.99
34.07
380
HYDRAULIC TABLES
Table 28.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.0175—Continued

.01
.03
.03
.04
.05
.06
.07
.08
.09
.10
0.2
0.4
0.6
0.8
224∞
2.90
4. 11
5.03
5.81 6.49
7.11
7.68
8. 21
8.71
9.18
4. 61
6. 52
7.98
9.22❘ 10.31
11.29
12.20
13.04
13.83
14.58
6.04
8.54
10.46
12.08
13. 51
14.80
15.98
17.09
18. 12
19.10
7.32
10.35
12.67
14. 64
16.36
17.92
19.36
20.70
21.95
23. 14
1.0
8.49
12.01
14.71
16.98
18.99 20.80 22.47
24.02
25.47
26.85
1. 2
9.59
13.56
16. 61
19.18
21.44
23.49
25.37
27.12
28.77
30.32
1.4
10.63
15.03
18. 41
21.25
23.76
26.03
28.12
30.06 31.88
33.60
1.6
11.62
16. 43
20.12 | 23. 23
25.97 28.45
30.73
32.86
34.85
36.73
1.8 12.56
17.77
21.76
25.13 | 28. 10 | 30.78
33. 24
35. 54
37.69
39.73
2.0
13. 48
19.06
23.35 26.96
30.14
33.02
35.66
38. 13
40.44
42.63
2.2
14.36
20.31
24.88
28.73
32. 12
35. 18
38.00
40.63
43.09
45.42
2.4
15.22
21.53
26.36 30.44
34.04
37.28
40.27 | 43.05
45.66
48. 13
2.6
16.06
22.71
27.81 32.11
35.90
39.33
42.48
45. 41
48. 17
50.77
2.8
16.87
23.86
29.22
33.74
37.72
41.32
44. 63
47.71
50.61
53.34
3.0
17.66
24.98
30.59 35.33
39.50 | 43.27 | 46.73
49.96
52.99
55.85
3.2
18.44
26.08
31.94
36.88
41.23
45. 17
48.79
52.15
55. 32
58.31
3.4
19. 20
27.15
33.26
38.40
42.93
47.03
50.80
54. 31
57.60
60.72
3.6
19.95
28.21 34. 55
39.89
44.60
48.86
52.77
56. 41
59.84
63.07
3.8
20.68
29.24
35.81
41.36
46. 24
50.65
54.71
58.49
62.03
65.39
4.0 21.40
30.26 37.06
42.79
47.85
52.41
56. 61
60.52
64. 19
67.66
4.2 22.10
31.26
38.29
44. 21
49.43
54. 14
58.48
62.52
66.31
69.90
4.4
22.80 32.25 39.49
45.60
50.98
55.85
60.33
64. 49
68.40
72.10
4.6
23.49
33.22
40.68
46.97
52.52
57.53
62. 14
66.43
70.46
74.27
4.8
24. 16
34. 17
41.85 48.32
54.03
59.19
63.93
68.34
72.49
76. 41
5.0 24.83
35. 11
43.01
49.66
55. 52
60.82
65.69
70.23
74.49
78.52
5.2
25.49
36.04
44. 14
50.97
56.99
62.43
67.43
72.09
76. 46
80.60
5.4 26.14
36.96
45. 27
52.27
58.44
64.02
69. 15
73.92
78.41
82.65
5.6
26.78
37.87
46.38
53.56 59.88
65.59
70.85 | 75.74.
80.33
84.68
5.8 27.41
38.77
47.48
54.82 | 61. 29
67.14 |
72.52 | 77.53
77.53
82.23
86.68
6.0 28.04
39.65
6.2
28.66
6.4
29. 27
48.56
48.56 56.08 62.70
40.53 49.64 57.32 64.08
41.40 50.70 58.54 65.45
68.68
74.18 | 79.30
84.11
88.66
70.20 | 75.82 | 81.06
85.97
90.62
71.70
77.44 | 82.79
87.81
92.56
6.6
29.88
42. 25
6.8
30.48
43. 10
51.75 59.75
52.79 60.96
66.81
73. 18
79.05 84.51
89.63
94.48
68.15
74.66
80.64
86.20
86.20 91.43
96.38
7.0
31.07
43.94
53.82
62. 15
69.48 76. 11
82.21
87.89
93. 22
98.26
7.5
32.54
46. 01
56.35
65.07
8.0
33.97
8.5
35.37
9.0 36.74
48.03 58.83
50.02 61.26 70.73
51.96 63.64 73.48
67.93
82. 15
72.75❘ 79.69 86.08
75.95 | 83. 20 | 89.86 96.07 101.90
79.08 86.63 93.57 100.03 106. 10
89.99 97.21 103.92 110. 22
92.02
97.61
102.89
107.41
111.84
116. 18
9.5 38.09
120.45
53.87 65.97 76. 1885. 17
93.30 100.77 107.73 114. 27
HYDRAULIC TABLES
381
Table 28.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
n=.0175—Continued

.00005 .00010.00015 |
.00015 .00020.00025 .00030 .00035.00040.00045.00050
|
11
12
15
16
26
27
28
29
36
DERRE **** 22222 22222 AMCS ----- ****:
10 2.79
3.94
4.83
5.57
6. 23
6.83 7.37
7.88
8.36
8.81
2.97
4.20
5. 14
5.94
6. 64
7.27
7.86
8.40
8.91
9.39
3.15
4.45
5.45
6. 29
7.04
7.71
8.33
8.90
9.44
9.95
13
3. 32
4.69
5.75
6.64
7.42
8.13
8.78
9.39
9.96
10.50
14
3.49
4.93
6.04
6.98
7.80
8.54
9.23
9.86
10. 46
11.03
3.65
5. 16
6.33
7.30
8.17
8.95
9.66 10.33
10.96
11.55
3.81
5.39
6.60 7.63
8.53
9.34
10.09 | 10.78
11.44
12.06
17
3.97
5. 61
6.88 7.94
8.88 9.72
10.50 11.23
11.91
12.55
18
4. 12
5.83
19
4.28
6.05
7.14 8.25
7.41 8.55
9.22 10.10
9.56 10.47
10.91 11.66 12.37
13.04
11.31
12.09
12.83
13.52
20
4.42
6.26
7.66 8.85
9.89
10.84
11.70 12.51
13.27
13.99
21
4.57
6.46
7.92
9.14
10.22
11.19
12.09 | 12.93
13.71
14.45
4. 71
6. 67
8.17
9.43
10.54
11.55
12.47 | 13.33
14. 14
14.91
23
4.86
6.87
8.41
9.71 10.86
11.89 12.85 13.74
14. 57
15.36
24
5.00
7.07
8.65 9.99
11.17
12.24 | 13. 22 | 14. 13 | 14.99
15.80
25
5. 13
7.26
8.89
10.27
11.48
12.57
13.58 14.52 15.40
16.23
5. 27
7.45
9. 13
10. 54
11.78
12.91
13.94
14.90
15.81
16.66
5.40
7.64
9.36
10.81
12.08
13. 24
14.30
15.28
16. 21
17.09
5.54
7.83
9.59 11.07
12.38
13.56
14.65
15. 66
16.61
17.51
5.67
8.02 9.82 11.34
12.67
13.88
15.00 | 16.03
17.00
17.92
30
5.80
8.20
10.04 | 11.59
12.96
14.20
15.34
16.40 | 17.39
18.33
31
5.93
8.38 10.26 11.85
13.25
14. 51
15.68
16.76 17.78
18.74
32
6.05 8.56 10.48 12.10
13.53
14.82
16.01
17.12
18. 16
19. 14
33
6. 18
8.74 10.70
12.35
13.81
15. 13
16. 34
17.47
18.53
19.53
34
6.30
8.91 10.91 12.60 14.09
15.44
16.67
17.82
18.90
19.93
35
6. 42
9.09 11.13 12.85 14.37 15.74
17.00
18.17
19. 27
20.32
6.55
9.26 11.34 13.09
14.64
16.04
17.32
18. 52
19. 64
20.70
37
6. 67
9.43 11.55 13.33 14.91
16.33
17.64 18.86
20.00
21.08
38
6.79
9.60 11.75 13.57 15.18
16.62
17.96 | 19.20
20.36
21.46
39
6.91
9.77 11.96 13.81
15.44
16.91
18.27 19.53
20.72
21.84
40 7.02
9.93 12.16 14.05
15.70
17.20
18.58
19.86
21.07
22. 21
41 7.14
10.10❘ 12.37
14.28
15 96
17.49
18.89
20. 19
21.42
22.58
42
7.25
10.26 12. 57 14.51
16. 22
17.77 19.19
20. 52
21.76
22.94
43
7.37
44
7.48
10.42 12.76 | 14.74
10.58 12.96 14.97
16.48
18.05
19.50 | 20.84
22.11
23.30
16.73
18.33
19.80 21.17
22.45
23.66
45
7.60
10.74 | 13. 16
15. 19
16.99
18.61 20.10 21.49
22.79
24.02
48 7.71
10.90 13.35
15.42
17.24 18.88
20.39 21.80
23.13
24.38
47
7.82
11.06 13.54
15. 64
17.49 19.15
20.69 22.12 23.46
24.73
48 7.93
49
8.04
11.22 13.74 15.86 17.73 19.43
11.37 13.93 16.08 17.98 19.69
20.98 22.43 23.79
25.08
21.27 | 22.74 | 24. 12
25.43
50
25.77
8.15
18.22 19.96 | 21.56 | 23.05 | 24. 45
11.52 14.11 16.30
382
HYDRAULIC TABLES
Table 28.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.0175—Continued


.00055 .00060.00065 | .00070 | .00075 | .00080.00085.00090.00095 | .00100
10
9.24 9.65 10.05 | 10.43
11 9.85 10.29 10.71
10.79 11.15 11.49 11.82 12.15
12.46
11. 11
11.50 11.88
12.24 12.60
12.95
13. 28
12
10.44 10.90 11.35
11.78
12.19 12.59
12.98
13.35
13.72
14.07
13
11.01
11.50
11.97
12.42
12.86
13.28
13. 69
14.08
14. 47
14.85
14
11.57
12.08
12.58
13.05
13. 51
13.95
14.38
14.80
15. 20
15.60
15
12.11
12.65
13. 17
13.66
14. 14
14. 61
15.06
15.49
15.92
16.33
16
12.64
13. 21
13.75
14. 27
14.77
15.25
15.72
16. 18
16. 62
17.05
17
13.17
13.75
14.31
14.85
15.37
15.88
16. 37
16.84
17.30
17.75
18
13.68
14.29 14.87
15.43
15.97
16.50
17.00
17.50
17.98
18.44
19
14.18
14.81 15.41
16.00
16.56
17.10
17.63
18. 14
18.64
19. 12
20
14.67
15.33 15.95
16.55
17.13
17.70
18. 24
18.77
19.28
19.78
21
15. 16
15.83 16.48
17.10
17.70 18.28
18.84
19.39
19.92
20.44
22
15.64
16.33
17.00
17.64
18.26 18.86
19.44 20.00
20.55
21.08
A
23
16. 11
16.82
17.51
18. 17
18.81 19.42 20.02 20.60
21.17
21.72
24
16.57
17.31
18.01
18.69
19.35 19.98
20.60
21.20
21.78
22.34
37
BANAR A*** 1858
25 17.03 17.78 18.51
19. 21
19.88
20.53 21.17
21.78
22.38
22.96
26 17.48 18.25
19.00
19.72
20.41
21.08 21.73 22.36
22.97
23.57
27
17.92 18.72 19.48
20.22
20.93
21.62
22.28
22.93
23.56
24. 17
28 18.36 19.18 19.96 20.72
21.44
22. 15
22.83
23.49
24. 13
24.76
29
18.80 19.63
20.43 21.21
21.95
22.67
23.37
24.05
24.70
25.35
30 19.23
20.08 20.90 | 21.69
22.45
23.19
23.90
24.60 | 25.27
25.93
31
19.65
20.53 21.36
22.17
22.95
23.70
24.43
25. 14
25.83
26.50
32
20.07 20.96 21.82
22.64
23.44
24. 21
24.95
25. 68
26.38
27.07
33
20.49
21.40
34 20.90 21.83
22.27
22.72 | 23. 58
23. 11
23.93
24.71
25.47
26. 21
26.93
27.63
24. 41
25. 21
25.98
26.74❘ 27.47
28. 18
35
21.31
36 21.71
39
22.11
38 22. 51
22.90
23.10
22.26 23.16 24.04
22.68 23.60 24.49
24.04 24.95 25.82
24.88
25.70
26.49
27.26 28.00
28.73
25.35
26. 19
26.99❘ 27.77 28.53
29.28
26.67
27.49 28.29
29.06
29.82
23. 51
23.92
24.47 25.39 26.28 27.15
24.90 25.84
27.98 28.79 29.58
30.35
26.74❘ 27.62
28.47
29.30 | 30.10
30.88
40
23.29
24.33
25.32 26.28
27.20 28.09
28.96
29.79 | 30.61
31.41
41
23.68
24. 73
25.74 26.71
42
24.06
25. 13
26.16
27.65
27.15 28.10
28.56
29.44
30.29 31.12
31.93
29. 02
29.91
30.78
31.62
32.44
43
24. 44
25.53
26.57
27.57 | 28.54 29.48
30.39
31.27
32. 12
32.96
44
24.82
25.92 26.98
28.00 28.98 | 29.93
30.85
31.75
32.62
33.47
45
25.19
46 25.57
26.31 27.39
26.70
28.42
29.42 | 30.39
31.32
32. 23
33.11
33.97
27.79
28.84
29.85 30.83
31.78
32.70
33.60
34.47
47
25.94
27.09
28. 19 29.26
30.29 31.28
32. 24
33.18
34.09
34.97
48 26.30
27.47
28. 59 29.67
30.71
31.72
32.70
33.65
34.57
35.47
49 26.67
27.85
28.99
30.08
31. 14
32.16
33.15
34. 11
35.05
35.96
50 27.03
36.44
28.23 29.38
35.52
30.49
34.57
31.56 32.60
33.60
HYDRAULIC TABLES
383
Table 28.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.0175-Continued

3
.0010
.0015
.0020
.0025 .0030 .0035 .0040
.0045
.0050
10
12.46
15.26
17.63
19.71 21.59
23.32
24.93
26.44 27.87
11
13.28
16. 27
18.78 21.00 23.00
24.85
26.56
28.17
29.70
12
14.07
17.24
19.90
22.25
24.38
26.33
28. 15
29.86
31.47
13
14.85
18.18
21.00
23.47
25.71
27.77
29.69
31.49
33.20
14 15.60
19. 10
22.06
24.66
27.02
29. 18
31.20
33.09
34.88
15
16.33
20.00
23. 10
25.82
28. 29
30.55
32.66
34.65
36.52
16
17.05
20.88
24. 11
26.96
29.53
31.90
34. 10
36. 17
38. 13
17
17.75
21.74
25.11
28.07
30.75
33. 21
35.51
37.66
39.70
18
18.44
22.59
26.08
29.16
31.94
34.50
36.89
39. 12
41.24
19
19.12
23.42
27.04
30.23
33. 12
35.77
38.24
40.56
42.75
222** *2222 A-8** ***88
20
19.78
24. 23
27.98
31.28
34.27
37.01
39.57
41.97
44. 24
21
20.44
25.03
28.91
32.32
35.40
38.24
40.88
43.36
45.70
21.08
25.82 29.82
33.33
36.52
39.44
42. 17
44.72
47. 14
23
21.72 26.60 30.71
34.34
37.61
40.63
43. 43
46.07
48.56
24 22.34
27.36 31.60
35.33
38.70
41.80
44.68
47.39
49.96
25
22.96
28.12
32.47
36.30
39.77
42.95
45.92
48.70
51.34
26
23.57
28.86
33.33
37.26
40.82
44.09
47.13
49.99 52.70
27
24. 17
29.60
34. 18
38. 21
41.86
45. 21
48.33
51.27
54.04
28
24. 76
30.32
35.02
39. 15
42.89
46.32
49.52
52.52
55.37
29
25.35
31.04
35.84
40.08
43.90
47.42 50.69
53.77
56.68
30 25.93
31.75 36.66
40.99
44.90
48.50 51.85
55.00
57.97
31 26.50
32 27.07
33
32.45
37.47
41.90
45.90
49.57
53.00
56.21
59.25
33. 15
38.28 42.79
46.88
50.63
54. 13
57.41
60.52
27.63
33.84
39.07 43.68
47.85
51.68
55.25
58.60
61.77
34
28. 18
34.52
39.85 44.56
48.81
52.72
56.36
59.78
63.02
35
28.73
35. 19
40.63
45.43 49.76
53.75
57.46
60.95
64. 25
36
29.28
35.86
41.40
46.29
50.71 54.77
58.55
62. 10
65.46
37 29.82
36.52
42. 17
47.14
51.64
55.78
59.63
63.25
66.67
38 30.35
39 30.88
37. 17
42.92
47.99 52.57
56.78
60.70
64.38
67.87
37.82
43.67
48.83
53.49
57.77 61.76 65.51
69.05
40
31.41
38.47
44. 42
49.66
54.40
58.76 62.81 66.62
70.23
41
31.93
39. 10
45. 15
50.48
55.30
42
32. 44
39.74
45.88
51.30 56.20
43
32.96
40.37
46.61
52.11
44
33.47 40.99 47.33
52.92
57.97
59.73 63.86
60.70
57.08 61.66
62.61
67.73
71.39
64.89
68.83
72.55
65.92 69.91
73.70
66.93 70.99
74.83
46
45 33.97 41.61 48.04
34.47 42.22
53.71
58.84
63.56 67.94 72.07
75.96
48.75
54.51 59.71
64.49
68.95
73.13
77.09
47 34.97
42.83
49.46
55.29
60.57
65. 43
69.94
74.19
78.20
48
35.47
43. 44
50.16
56.08
61.43
66.35
70.93
75.23
79.30
49
35.96
44.04
50.85 56.85
62.28
67.27 71.91
76.28
80.40
50
81.49
36.44
72.89 77.31
44.63
68.18
51.54 57.62
63. 12
384
HYDRAULIC TABLES
Table 28.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v=· r2/31/2
n=.0175—Continued

8
.0055
.0060 .0065 .0070
.0075 .0080 .0085 .0090 .0095 .0100
10
29.23
30.53 31.78
32.98
34. 13
35.25
36.34 37.39
38.42 39.41
11
31.15 32.53
33.86
35. 14
36.37
37.57
38.72
39.84 40.94 42.00
12
33.01
34.48 35.88
37.24
38.54
39.81
41.03
42.22
43.38
44.51
13
34.82 36.37
37.85
39, 28
40.66
41.99
43.28
44. 54
45.76
46.95
14
36.58
38.21
39.77
41.27
42.72
44. 12
45.48
46.79
48.08
49.32
15
38.30
40.01
41.64
43.21
44.73
46. 19
47.62
49.00
50.34
51.65
16
39.99
41.76
43.47
45. 11
46.69
48.23
49.71
51.15 52.55
53.92
17 41.64
43.49
45.26
46.97
48.62
50.21
51.76 53.26
54.72
56. 14
18
43.25
45. 18
47.02
48.80
50.51
52.16
53.77 55.33
56.84
58.32
19
44.84
46.83
48.75
50.59
52.36
54.08
55.74 57.36 58.93
60.46
20
46.40
48.46 50.44
52.35
54. 18
55.96
57.68
59.35 60.98
62.57
21
47.93
50.07
52.11 54.08
55.97
57.81
59.59 61.32
63.00
64.63
22 49.44
51.64
53.75 | 55.78
57.74
59.63
61.47 | 63.25
64.98 66.67
23 50.93
53.20
55.37 57.46
59.47
61.42
63.32
65. 15
66.94
68.68
24
52.40
54.73
56.96 | 59.11
61. 19
63.19
65.14
67.03 | 68.86
70.65
25
53.84
56.24
58.53 60.74
62.87
64.94
66.93
68.88 70.76
72.60
26 55.27
57.73
60.08 62.35
64.54
66.66
68.71 70.70 72.64
74.52
27
56.68
59.20
61.61
63.94
66.18 68.35
70.46
72.50
74.49
76.42
28
58.07
60.65
63. 13
65. 51
67.81 70.03
72. 19
74.28 76.32
78.30
29
59.44
62.09
64.62 | 67.06
69.41
71.69
73.90
76.04
78.12
80.15
30
60.80
63.50
66. 10
68.59
71.00 73.33
75.59
77.78 79.91
81.98
31
62. 14
64.91
67.56 70.11
72.57
74.95 77.26
79.50 81.67
83.80
32
63.47
66.30
69.00 | 71.61
74. 12
76.55
78.91
81.20 83.42
85.59
33 64.79
67.67
70.43 73.09
75.66
78.14
80.54
82.88
85.15
87.36
34
66.09
69.03 71.85 74.56
77.18
79.71
82. 16
84.55 86.86
89.12
35 67.38
70.38 73.25 76.02
78.68
81.27
83.77
86.19 88.56
90.86
36
68.66
71.71 74.64 77.46 80.18
82.81
85.35
87.83 | 90.24
92.58
37
69.92
73.03 76.02 78.89 81.65
84.33
86.93 89.45 91.90
94.29
38 71.18 74.34 77.38
39 72.42 75.64
80.30 83.12
85.84
88.49
91.05 93.55
95.98
78.73 81.70 84.57
87.34
90.03
92.64 95.18
97.65
41
40 73.65
74.88
76.93 80.07
83.09 86.01
88.83
91.57 94.22❘ 96.80
99.32
78.21 81.40
84.47 87.44
90.31
93.08 | 95.78 | 98.41
100.96
42 76.09
79.47 | 82.72
85.84 88.85
91.77
94.59 97.33 100.00
102.60
43
44
77.29
78.49
80.73 84.03
87.20 90.26
81.98 85.32 88.55 91.65
93.22 96.09 98.87 101.58
94.66
104.22
97.57 100.40 103. 15
105.83
45 79.67 83.21 86.61 89.88 93.04 96.09 99.04 101.92 104.71
46 80.85 84.44 87.89 91.21 94.41 97.51 100.51 103. 42
47 82.02 85.66 89.16 92.53 95.77 98.91101.96 104.91 107.79
48 83.17 86.87 90.42 93.83 97.13 100.31 103.40 |106.40 109.31
49 84.33 88.08 91.67 95.13 98.47 101.70 104.83 107.87 110.83
107.43
106. 25
109.01
110.59
112. 15
113.70
50 85.47 89.27 92.91 96.42 99.81103.08 106. 25 109.33 112. 33
115.25
HYDRAULIC TABLES
385
Table 28.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
N
n=.0175—Continued



.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
SERIE 4-700 22222 82*** S**** 1828-
10
39.41
11
42.00
12
44. 51
62.94
55.74 68.27
59.40 72.75
77.09
13
46.95
66.39
81.31
14
49.32
69.76
85.43
130.50
78.83 88.13 96.54 104.28 111.48 118. 24 124, 64
84.00 93.91 102.88 111.12 118.79 126.00 132.81
89.02 99.52 109.02 117.76 125.89
93.89 104.98 115.00 124. 21
98.65 110.29 120.82
133.52
140. 75
132. 79
140. 84
148. 46
139. 51
147.97
155. 98
15
51.65
73.04
16
53.92
17
56. 14
18
58.32
19
60.46
89.45 103.29 115. 49
76.25 93.39 107.83 120.56
79.40 97.24 112.28 125. 54
82.48 101.02 116.64| 130.41
85.51 104.72 120.92
126. 51
132.07
137. 52
142.86
135. 20
148. 10
136.64 146.08 154.94 163. 32
142.65 152.50 161.75 170.50
148.54 158.79 168.42 177. 53
154.30 164.96| 174.96 184. 43
159.97 171.01 181.39 191.20
20 62.57 88.48 108.37 125. 13
139.90
153. 25
21
64.63
66.67
23
68.68
24
70.65
91.41 111.95 129.27 144. 53
94. 29 115.48 133.34| 149.08
97.12 118.95 137.35 153. 56
99.92 122. 37 141.30 157.98
165. 53 176.96 187.70 197.85
158. 32 171.01 182.81 193.90 204.39
163.31 176.39 188.57 200.01| 210.83
168.22 181.70 194.24 206.03 217.17
173.06 186.93 199.83 211.95| 223.42
25
72.60
102.67 125. 75 145. 20
26
74.52
27
30
81.98
31
83.80
32
85.59
33
87.36
34 89.12 126.03 154.36 178. 24
35
90.86 128.49 157.37 181.71| 203.16
222. 55
240.39 256.98 272.57| 287.32
29
162.34 177.83
105.39 129.08 149.05 166. 64 182. 55 197.17 210.79 223. 57 235.67
76.42 108.08 132.37 152.85 170.89 187.20 202.20 216. 16 229.27 241.67
78.30 110.73 135.62 156.60 175.08 191.79 207.16 221.46 234.90 247. 60
80.15 113.35 138.83| 160.30 179.22 196.33 212.06| 226.70| 240.46| 253. 46
115.94 142.00 163.97 183.32 200.82 216.91 231.89 245.95 259.26
118. 51| 145. 14| 167.59 187.37 205.26| 221.70 237.01 251.39 264.99
121.04 148. 24 171.18 191.38 209.65 226.45 242.08 256. 76 270.65
123.55 151.32 174.72 195. 35 213.99 231. 14 247.10 262.09 276. 26
199. 27 218. 29 235.78 252.06 267.35 281.82
192.08 205.35 217.80 229.58
36 92.58 130.93| 160.35 185.16 207.01| 226.77 244.94 261.85 277.74 292. 76
37
38
39
94.29 133.34 163. 31| 188.57 210.83 230.95
95.98 135.73 166.24 191.96
97.65 138.10 169. 14 195. 31
214. 61
218.36
235. 10
239. 20
249.46 266.68 282.86 298. 16
253.93 271.47 287.93). 303. 51
258. 37 276. 21 292.96 308.81
40 99.32
243.27
41
42
100.96
102.60
43 104.22
44
105.83
140.45 172.02 198.63 222.08
262.77 280.91 297.95 314.07
142.79 174.88 201.93 225. 76 247.31 267.13 285. 57 302.89] 319.28
145. 10 177.71 205.20 229.42 251.32 271.45 290.20| 307.80| 324.45
147.39 180.52| 208. 44| 233.05| 255. 29 275.75 294. 78 312.67 329.58
149.67 183.31 211.66 236.65 259.23 280.00 299.34 317.50| 334. 67
303.86 322.29 339.72
308. 34 327.04 344. 74
312. 79 331. 77 349.71
317.21| 336.46| 354.66
45 107.43 151.93 186.07 214.86 240.22 263.15 284.23
46 109.01 154.17 188.82 218.03 243.76 267.03 288. 43
156.40 191.55 221.18 247.28 270.89 292. 59
158.61 194. 25| 224.30| 250.78 274.72 296.73
160.80 196.94 227.41 254.25 278.52 300.83 321.61| 341. 11| 359, 57
47
110.59
48
49
112. 15
113.70
50 115.25
162.98 199.61 230.49 257.70 282.29 304.91| 325.97 345.74 364.44
386
HYDRAULIC TABLES
Table 29.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
S
n=.020
n

035
0010
.00005 .00010 | |
.00015 .00020.00025 .00030.00035.00040.00045.00050
0.2 0.18
0.25
0.31 0.36
0.40
0.44 0.48
0.51
0.54
0.57
0.4
.29
.40
.49
.57
.64
.70
.75
.81
.86
.90
0.6
.37
.53
.65
.75
.84
.92 .99
1.06
1. 12
1.18
0.8
.45
.64
.78
.91
1.01
1. 11
1.20
1.28
1.36
1.43
1.0
.53
.74
.91
1.05
1. 17
1.29
1.39
1.49
1.58
1.66
1.2
.59
.84
1.03
1. 19
1. 33
1.45
1.57
1.68
1.78
1.88
1. 4
.66
.93
1. 14
1.31
1.47
1.61
1.74
1.86
1.97
2.08
1.6
.72
1.02
1.24
1.44
1.61
1.76
1.90
2.03
2.16
2.27
1.8
.78
1. 10
1.35
1.55
1.74
1.90
2.06
2.20
2.33
2.46
2.0
.83
1.18
1.44
1.67
1.86
2.04
2. 21
2.36
2.50
2.64
2.2
.89
1.26
1.54
1.78
1.99
2. 18
2.35
2. 51
2.67
2.81
2. 4
.94
1.33
1.63
1.88
2. 11
2.31
2.49
2.66
2.83
2.98
2.6
.99
1.40
1.72 1.99
2. 22
2.43
2.63
2.81
2.98
3. 14
2.8
1.04
1. 48
1.81
2.09
2.33
2.56
2.76
2.95
3. 13
3.30
3.0
1.09
1.55
1.89
2.19
2.44
2.68
2.89
3.09
3.28
3.46
3.2
1. 14
1.61
1.98
2. 28
2.55
2.79
3.02
3. 23
3.42
3.61
3.4
1.19
1.68
2.06
2.38
2.66
2.91
3. 14
3.36
3.56
3.76
3.6 1.23
1.75
2. 14
2.47
2.76
3.02
3.27
3.49
3.70
3.90
3.8
1.28
1.81
2.22
2.56
2.86
3. 13
3.38
3.62
3.84
4.05
4.0
1.32
1.87
2. 29
2.65
2.96
3.24
3.50 3.74
3.97
4. 19
4.2
1.37
1.93
2.37
2.74
3.06
3.35
3.62
3.87
4. 10
4.32
4.4 1.41
2.00
2.44
2.82
3. 15
3.46
3.73
3.99
4. 23
4. 46
4. 6
1.45
2.06
2.52
2.91
3. 25
3.56
3.84
4. 11
4.36
4.60
4.8
1.49
2.11
2. 59
2.99
3.34
3.66
3.96
4.23
4.48
4.73
5.0
1. 54
2. 17
2.66
3.07
3.44
3.76
4.06
4. 35
4.61
4.86
5.2
1.58
2.23
2.73
3. 15
3. 53
3.86
4. 17
4.46
4.73
4.99
5.4
1.62
2. 29
2.80
3. 23
3.62
3.96
4. 28
4.57
4.85
5. 11
5.6
1.66
2.34
2.87
3. 31
3.70
4.06
4.38
4.69
4.97
5. 24
5.8 1.70
2.40
2.94
3.39
3.79
4. 15
4.49
4.80
5.09
5.36
6.0
1.73
2.45
3.00 3.47
3.88
4.25
4. 59
4.91
5.20
5.49
6.2
1.77 2.51
3.07
3.55
3.96
4. 34
4.69
5.02
5.32
5. 61
6.4 1.81
2.56
3. 14
3.62
4.05
4. 44
4.79
5. 12
5.43
5.73
6.6
1.85
2.61
3.20
3.70
4. 13
4.53
4.89
5. 23
5.55
5.85
6.8
1.89
2.67 3.27
3.77
4. 22
4.62
4.99
5. 33
5.66
5.96
7.0
1.92
2.72
3.33
3.85
4.30
4.71
5.09
5. 44
5.77
6.08
7.5
2.01
2.85
3.49 4.03 4.50
4.93
5.33
5.69
6.04
6.37
8.0
2. 10
2.97
3.64
4.20
4.70
5. 15
5. 56
5.94
6.30
6. 65
8.5
2.19
3.09
3.79
4.38
4.89
5.36
5.79
6. 19
6.56
6.92
9.0
2. 27
3. 21
3.94
4. 55
5.08
5.57
6.01
6.43
6.82
7.19
9.5
7.45
2.36
7.07
3.33
6.67
4.08
6.24
4.71
5.77
5. 27
HYDRAULIC TABLES
387
Table 29.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.020—Continued

.00060.00065.00070.00075.00080.00085 .00090.00095 .00100
.00055
T
6666
0.2
0.60
0.62
0.65
0.67
0.70
0.72
0.74
0.76
0.78
0.80
0.4
.95
.99
1.03
1.07
1. 10
1. 14
1.18
1. 21
1. 24
1.28
0.6
1.24
1.29 1.35
1.40
1.45
1.49
1.54
1.59
1.63
1.67
0.8
1.50 1.57
1.63
1.69
1.75
1.81
1.87
1.92
1.97
2.02
1.0 1.74
1.82
1.89
1.97
2.03
2.10
2.17
2.23
2.29
2.35
1.2
1.97
2.06
2.14
2.22
2.30
2.37 2.45 2.52
2.59
2.65
1.4
2.18
2. 28
2.37
2.46
2.55
2.63
2.71
2.79
2.87
2.94
1.6
2.38
2.49
2.59
2.69
2.78
2.87
2.96
3.05
3. 13
3. 21
1.8
2. 58
2.69
2.80
2.91
3.01
3.11
3. 21
3.30
3.39
3.48
2.0
2.77
2.89
3.01
3.12
3.23
3.34
3. 44
3.54
3.64
3.73
2.2
2.95
3.08
3. 20
3.33 3.44 3.55
3.66
3.77
3.87
3.97
2.4
3.12
3.26
3.40
3.52 3.65
3.77
3.88
4.00
4. 11
4. 21
2.6
3.29 3.44
3.58
3.72
3.85
3.97
4.10
4. 21
4.33
4. 44
2.8
3.46
3.62
3.76
3.91
4. 04
4. 17
4.30
4. 43
4. 55
4.67
3.0
3.62
3.79
3.94
4.09
4. 23
4.37
4.51
4.64
4.76
4.89
3.2
3.78
3.95
4. 11
4.27
4. 42
4. 56
4.70
4.84
4.97
5.10
3.4
3.94
4.12
4.28
4. 44
4.60
4.75
4.90
5.04
5. 18
5. 31
3.6
4.09
4. 27
4.45
4.62
4. 78
4.94
5.09
5. 24
5.38
5.52
3.8
4. 24
4. 43
4. 61
4.79
4.95
5. 12
5.27
5.43
5.58
5.72
4.0
4.39
4.59
4.77
4.95
5. 13
5.30
5.46
5.62
5.77
5.92
4.2
4. 54
4.74
4.93
5. 12
5.30
5.47
5.64
5.80
5.96
6.12
4.4
4.68
4.89
5.09
5. 28
5.46
5.64
5.82
5.99
6.15
6.31
4.6
4.82
5.03
5.24
5. 44
5. 63
5.81
5.99
6. 17
6. 33
6.50
4.8
4.96
5. 18
5. 39
5,59
5.79
5.98
6. 16
6.34
6. 52
6.69
NO NO NO NO NO
5.0
5.2
5.4
5. 6
5.8
0216 00
5.10
5.32
5.54
5.75
5.95
6. 14
6. 33
6. 52
6.70
6.87
5. 23
5.46
5.69
5.90
6. 11
6. 31
6.50
6.69
6.87
7.05
5.36
5. 60
5.83
6. 05
6.26
6.47
6. 67
6.86
7.05
7.23
5. 49
5.74
5.97
6.20
6.42
6. 63
6.83
7.03 7.22
7. 41
5. 62
5.88
6. 12
6.35
6. 57
6.78
6.99 7.20 7.39
7.58
6.0
5.75
6.01
6.25
6. 49
6.72
6.94
7.15 7.36 7.56
7.76
6.2
5.88
6. 14
6.39
6.63 6.87
6.4
6.01
6. 27
6. 53
6.6
6. 13
6.40
6. 67
6.8
6. 25
6. 53
6.80
7.09
6.78 7.01 7.24 7.47 7.68 7.89
6.92 7.16 7.39
7.06 7.30 7.54
7.31 7.52 7.73
7.93
8.10
7.62 7.84 8.06
8.27
7.78 8.00
8.22
8.43
7.0
6. 38
6.66
6.93
7.19 7.45 7.69
7.93
8. 16
8.38
8.60
7.5
6.68
6.97
7.26
7.53
7.80
8.05
8.30
8. 54
8.77
9.00
8.0 6.97
7.28 7.58
7.86
8. 14
8.41
8.66
8.92
9.16
9.40
8.5 7.26
7.58
7.89
8. 19
8.47
8.75 9.02 9.28
9.54
9.79
9.0 7.54
7.87
8.20
8. 51
8.80
9.09 9.37
9.64
9.91
10.17
9.5
10.54
7.82
10. 27
8. 16
10.00
8.50
9.72
8.82
9.43
9. 13
388
HYDRAULIC TABLES
Table 29.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.020—Continued

.0010
.0015
.0020
.0025 .0030
.0035 .0040
.0045
.0050
0.2
0.80
0.98
1.14
1.27
1.39
1.50
1.61
1.70
1.80
0.4
1.28 1.56
1.80
2.02
2. 21
2.39
2.55
2.71
2.85
0.6
1.67 2.05
2.36
2.64
2.90
3. 13
3.34
3. 55
3.74
0.8
2.02
2.48
2.86
3.20
3. 51
3.79
4. 05
4.30
4.53
1.0
2.35
2.88
3.32
3.72
4.07
4.40
4.70
4.98
5.25
1.2
2.65
3.25
3.75
4.20
4.60
4.96
5. 31
5.63
5.93
1.4
2. 94
3.60
4. 16
4.65
5.09
5.50
5.88
6. 24
6.57
1.6
3. 21
3.94
4. 55
5.08
5.57
6. 01
6.43
6.82
7.19
1.8
3.48
4.26
4.92
5.50
6.02
6. 50
6.95
7.38
7.77
2.0
3.73
4.57
5.27
5.90
6.46
6.98
7.46
7.91
8.34
2.2
3.97
4.87
5.62
6.28
6.88
7.44 7.95
8.43
8.89
2.4
4, 21
5. 16
5.96
6.66
7.29
7.88
8.42
8.93
9.42
2.6
4. 44
5. 44
6. 28
7.02
7.69
8.31
8.89
9.42
9.93
2.8
4.67
5.72
6.60
7.38
8.08
8.73
9.34
9.90
10.44
3.0
4.89
5.99
6.91
7.73
8.47
9.14
9.77
10.37
10.93
3.2
5. 10
6.25
7.22
8.07 8.84
9.55
10. 20
10.82
11.41
3.4
5.31
6. 51
7.51
8.40 9.20
9.94
10. 63
11. 27
11.88
3.6
5.52
6.76
7.80 8.73
9.56
10.33
11.04
11.71
12.34
3.8
5.72
7.01
8.09 9.05
9.91
10.70
11. 44
12.14
12.79
4.0
5.92
7.25
8.37
9.36
10.25
11.08
11.84
12.56
13.24
4.2
6.12
7.49
8.65
9.67
10.59
11.44
12.23
12.97
13.68
4.4
6.31
7.73
8.92
9.98
10.93
11.80
12.62
13. 38
14. 11
4.6
6.50
7.96
9.19
10.28
11. 26
12.16
13.00
13. 79
14.53
4.8 6.69
8.19
9.46
10.57
11.58
12.51
13. 37
14. 18
14.95
5.0 6.87
8.41
9.72
10.86
11.90
12.85
13.74
14.57
15.36
5.2
7.05
8.64
9.97
11. 15
12. 21
13.19
14.10
14.96
15.77
5.4 7.23
8.86
10.23
11.43
12.53
13.53
14. 46
15.34
16. 17
5.6
7.41
9.07
10.48
11.72
12.83
13.86
14.82
15.72
16.57
5.8
7.58
9.29
10.73
11.99
13. 14
14.19
15. 17
16.09
16.96
6.0
7.76 9.50
10.97
12.27
13.44
14.51
15.52
16.46
17.35
6.2 7.93
9.71
11.21
12.54
13.73
14.83
15.86
16.82
17.73
6.4
8.10
9.92 11.45
12.81 14.03
15.15
16. 20
17.18
18. 11
6.6
8.27
10. 13
11.69 13.07
14.32
15.47
16. 53
17.54
18.49
6.8
8.43
10.33
11.93
13.33
14.61
15.78
16.87
17.89
18.86
7.0
7.5
8.0
8.5
9.0
— 16 — KA —
8.60
10.53 12.16
13.59
14.89
16.09
17.20
18. 24
19.23
9.00
11.03 12.73
14. 23
15.59
16.84
18.00
19.10
20. 13
9.40
11.51 13.29
14.86
16.28
17.58
18.80
19.94
21.02
9.79 11.99 13.84
15.47
16.95
18. 31
19.57
20.76
21.88
10.17 12.45 14.38
16.07
17.61
19.02
20.33
21.57
22.73
9.5 10.54 12.91 14.90
23.57
16. 66
21.08 22.36
18.25
19.72
HYDRAULIC TABLES
389
Table 29.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.020—Continued



$
.0055
.0060
.0065 .0070 .0075 .0080 .0085 .0090 .0095
.0100
T
0.2
1.88
1.97
2.05
2. 13
2.20
2.27
2.34 2.41
2.48
2. 54
0.4
2.99
3. 12
3.25
3.37
3.49
3.61
3.72 3.83
3.93
4. 03
0.6 3.92
4.09
4. 26
4. 42
4.58
4.73
4.87
5.01
5. 15
5. 29
0.8
4.75
4.96
5. 16
5. 36
5. 55
5.73
5.90
6.07
6. 24
6.40
1.0
5. 51
5.76
5.99
6. 22
6.43
6.65
6.85
7.05
7.24
7.43
1.2
6. 22
6.50
6. 76
7.02
7.27 7.50
7.74
7.96
8. 18
8.39
1.4
6.90
7.20
7.50
7.78
8.05
8.32
8.57
8.82
9.06
9.30
1.6
7.54
7.87
8.19
8.50
8.80
9.09
9.37
9.64
9.91
10. 16
1.8
8.15
8.52
8.86
9.20
9.52
9.83
10. 14
10.43
10.72
10.99
2.0
8.75
9.14
9.51
9.87
10.21
10.55
10.87
11. 19
11.50
11.79
2.2
9.32
9.74
10. 13
10. 52
10.88
11. 24
11. 59
11.92
12.25
12.57
2.4 9.88 10.32
10.74
11. 14
11.53
11.91
12.28
12. 64
12.98
13. 32
2.6 10.42 10.88
11.33
11.75
12.17
12. 57
12.95
13.33
13.69
14.05
2.8
10.95
11.43
11.90
12.35
12.78
13.20
13.61
14.00
14.39
14.76
3.0
11.46
11.97
12. 46
12.93
13.38
13.82
14. 25
14.66
15.06
15.46
3.2
11.97
12.50
13.01
13.50
13.97
14.43
14.88
15. 31
15. 73
16. 13
3.4
12. 46
13. 01
13. 54
14.06
14. 55
15.03
15.49
15.94
16.37
16.80
3,6
12.94
13.52
14.07
14.60
15. 11
15. 61
16.09
16. 56
17.01
17.45
3.8
13. 42
14.01
14.59
15. 14
15.67
16. 18
16.68
17. 16
17.63
18.09
4.0
13.88
14.50
15.09
15.66
16. 21
16.75
17.26
17.76 18.25
18.72
4.2
14. 34
14.98
15.59
16. 18
16.75
17.83 18.35
4.4
14.80
15.45
16.08
16.69
17.28
4.6
15. 24
15.92
16. 57
17. 19
17.80
4.8
15.68
16.38
17.05
17.69
18.31
17.30
17.84 18.39 18.93 19.45
18.38 18.95 19.50 20.03
18.91 19.49
18.85
19.34
19.95
20.55
20.06 20.61
21. 14
5.0
16. 11
16.83 17.52
18. 18
18.81
19.43 20.03
20.61
21. 18
21.73
5.2
16.54
17.27
17.98
18.66
19.31
19.95
20.56
21. 16
21.74
22.30
5.4
16.96
17.71
18. 44
19. 13
19.81
20.45 21.08
21.70
22.29
22.87
5.6
17.38
18. 15
18.89
19.60
20.29 20.96
21.60 22.23
22.84
23.43
5.8
17.79
18.58
19.34
20.07
20.77
21.45
22.11
22.75
23.38
23.99
6.0
18. 19
19.00
19. 78
20.53
21. 25
21.94
22.62
23. 27
23.91
24.53
6.2
18.60
19.42
20.22
20.98
21.72
22. 43
23. 12
23.79
24. 44
25.08
6.4
18.99
19.84
20.65 21.43
22. 18
22.91
23.61 24.30
24.96
25.61
6.6 19.39
20. 25
21.08
21.87
22.64
23.38
24. 10 | 24.80
25.48
26. 14
6.8
19.78
20.66
21.50
22.31
23. 10
23.85
24.59 25.30
25.99
26.67
7.0
20. 16
21.06 21.92
22.75
23.55
24. 32
25.07
25.79
26.50
27.19
7.5
21. 11
22.05 22.95
23.82 24.65
25.46
26.25
27.01
27.75
28.47
8.0
22.04
23.02 23.96 24.87
25.74
26.58
27.40
28. 19
28.97
29.72
8.5
22.95
23.97 24.95 25.89
26.80
27.68
28.53
29.36
30.16
30.95
9.0 23.84
24.90 25.92 26.90
27.84
28.75
29.64
30.50
31.33
32. 15
9.5 24.72
33.33
25.82 26.87 27.88
30.73 31.62 32.48
28.86
29.81
390
HYDRAULIC TABLES
Table 29.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v== r2/3g1/2
n
n=.020-Continued

.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
0.2
2.54
3.59
4.40
5.08
5. 68
6. 22
6.72
7.19
7.62
8.04
0.4
4.03 5.70
6.99
8.07
9.02
9.88
10.67
11. 41
12.10
12.76
0.6
5.29
7.47
9.15
10. 57
11.82
12.95
13.98
14.95
15.86
16.71
0.8
6.40
9.06
11.09
12.81
14. 32
15.68
16.94 18. 11
19. 21
20.25
1.0
7.43
10.51
12.87
14.86
16.61
18.20
19.66 | 21.02 | 22. 29
23.50
1.2
8.39
11.87
14.53
16.78
18.76
20.55
22.20 | 23.73 | 25.17
26.53
1.4
9.30
13. 15
16. 11
18.60
20.79
22.78
24.60 | 26.30 | 27.90
29.40
1.6
10.16
14.37
17.60
20.33
22.73
24.90
26.89 28.75
28.75
30.49
30. 49
32. 14
1.8
10.99
15.55
19.04
21.99
24.58
26.93
29.09
31. 10
32.98
34.77
2.0 11.79
16.68 20.43
23.59
26.37
28.89
31. 21
33.36
35. 38
37.30
2.2 12.57
17.77 21.77
25. 14
28. 10
30.79
33.25❘ 35, 55 | 37.70
39.74
2.4
13.32
18.84
23.07
26.64
29.78
32.62
35 24. | 37.67
39.96
42.12
2.6
14. 05
19.87 24.33
28.10
31.41
34.41
37. 17 39.74
42. 15
44.43
2.8
14.76
20.87 25.57 29.52
33.00
36.16
39.05
41.75
44.28
46.68
3.0
15.46
21.86 26.77
30.91
34.56
37.86 40.89
43.71
46.37
48.87
3.2
16. 13
22.82
27.95
32. 27
36.08
39.52 | 42.69
45.64
48.40
51.02
3.4
16.80
23.76
29.10
33.60
37.57
41. 15
44. 45
47.52
50.40
53. 13
3.6
17.45
24. 68
30. 23
30.23
34.90
39.02
42.75
46.17 | 49.36
52.36
55. 19
3. 8
18.09
25.59
31. 34
36. 19
40.46
44.32
47.87
51. 17
54. 28
57.22
4.0
18.72
26.48
32.43
37.44
41.86
45.86
49.53
52.96
56. 17
59. 21
4.2 19.34
27.35 33.50
38.68
43. 25
43.25
47.38
51. 17
54. 71
58.02
61.16
4.4
19.95
28.21 34.56
39.90
44.61
48.87
52.78
56.43
59.85
63.09
4. 6
20. 55
29.06
35.59
41.10
45.95
50.34 54.37 58.13 61.65
64.99
4.8
21. 14
29.90
36.62
42. 28
47.28
51.79
55.94 59.80
63.43
66.86
5.0
21.73 30.72
37.63 43.45
48.58
53.22
57.48 61.45
65. 18
68.70
5.2
22.30 31.54
38.63 44.60
49.87
54.63 59.00
63.08
66.90
70.52
5.4
22.87
32.34
39.61 45.74
51. 14
56.02 60.51
64.68
68.61
72.32
5.6
23.43
33. 14
40.58
46.86
52.39
57.39 61.99
66. 27
70.29
74.09
5.8
23.99
33.92
41.54
47.97
53.63
58.75 63.46
67.84
71.96
75.85
6.0 24.53
34 70 42.49
49.07
54.86
6.2
25.08
35.46
43.43
6.4
25. 61
36. 22
6.6
26. 14
36.97
6.8
26.67
37.71
60.09 64.91
50.15 56.07 61.42
44.36 51.22 57.27 62.74
45.28 52.29 58.46 64.04 69. 17 73.94 78.43
46. 19 53.34 59.63 65,32 | 70.56 | 75.43 | 80.00
69.39
73.60
77.58
66.34 70.92 75.23
79.30
67.76 72.44 76.84
80.99
82.67
84.33
7.0
27. 19
38.45
47.09 54.38
60.80
66.60
7.5
28.47
40.26
49.31 56.94
63.66
69.73
71.93
75.32
76.90 | 81.57
85.98
80.52 | 85.41
90.02
8.0 29.72
42.03
51.48 59.44
66.46
72.80 78.63 84.06 89.16
93.98
8.5
30.95
43.76
9.0
32. 15
45.46
53.60 61.89 69.20
55.68 64.30 71.88
75.80 81.87 87.53 92.84
78.75❘ 85.05 90.93 96.44
97.86
101.66
9.5
105.39
33.33
81.64 88.1894. 26 99.98
47.13 57.73 66.66
74.52
HYDRAULIC TABLES
391
Table 29.-Velocity of water, v, in feet per second, based on
Manning's formula v=
n=.020—Continued
1.486
r2/31/2
n

.00005
.00010 | .00015 | .00020.00025.00030.00035.00040.00045 .00050
|
T
10
12
13
DIRRI
2. 44
3.45
4. 22
4.88 5.45 5.97 6.45
6.90 7.32 7.71
11
2.60
3.67
4.50
5.20
5.81
6.37 6.88
7.35
7.80
8.22
2.75
3.89
4.77
5. 51
6.16
6.75 7.29
7.79
8.26
8.71
2.90
4.11
5.03
5.81
6.50
7.12
7.69
8.22
8.71
9.19
14
3.05
4.32
5. 29
6.10
6.82
7.48
8.07
8.63
9.16
9.65
15
3.20
4.52
5.53
6.39
7.15
7.83
8.45
9.04
9.59
10. 10
16
3.34
4.72
5.78
6.67 7.46
8.17
8.83
9.44
10.01
10.55
17
3.47
4.91
6.02
6.95
7.77
8. 51
9.19
9.82
10.42
10.98
18
3.61
5.10
6. 25
7.22 8.07
8.84
9.55
10. 21
10.83
11.41
19
3.74
5. 29
6.48
7.48
8.36
9.16
9.90
10.58
11. 22
11.83
20
3.87
5.47
6.70
7.74
8.66
9.48
10. 24
10.95
11.61
12. 24
21
4.00
5.66
6.93
8.00
8.94
9.80
10.58
11.31
12.00
12.65
22
4.12
5.83
7.14
8.25
9.22 10.10
10.91
11.67
12. 37
13.04
23
4. 25
6.01
7.36
8.50
9.50
10.41 11.24
12.02
12.75
13.44
24
4.37
6.18
7.57
8.74
9.77
10.71
11.57 12.36
13. 11
13.82
25
4.49
6.35
7.78
8.98 10.04
11.00
11.88
12.71
13.48
14.20
26
4.61
6. 52
7.99
9.22
10.31
11.29
12. 20
13.04
13.83
14.58
27
4.73
6. 69
8.19
9.46 10.57
11.58
12. 51
13, 37
14. 19
14.95
28
4.84
6.85
8.39
9.69 10.83
11.87
12.82
13.70
14.53
15.32
29
4.96
7.01 8.59 9.92
11.09
12.15
13. 12
14.03
14.88
15.68
30
5.07
7.17 8.79 10.14
11.34
12.43 13.42
14.35
15. 22
16.04
31
5. 18
7.33
8.98 10.37
11.59
12.70
13.72
14.66
15. 55
16.40
32
5.30
7.49
9.17 10.59 11.84
12.97
14.01
14.98
15.89
16.75
33
5. 41
7.64
9.36 10.81
12.09
13. 24
14.30
15.29
16. 22
17.09
34
5.51
7.80
9.55
11.03
12.33
13.51
14.59 15.60
16.54
17.44
35
5.62
7.95
9.74
11. 24
12.57
13.77
14.87
15.90
16.86
17.78
36
5.73
8.10 9.92
11.46
12.81
14.03
15. 16
16.20
17.18
18. 11
37
5.83
8.25 10.10
11.67
13.04
14.29
15.43
16.50
17.50
18.45
38 5.94
8.40 10.29 11.88
13.28
14.55
15.71
16.80
17.81
18.78
39
6.04
8.54 10.47
12.08
13. 51
14.80
15.99
17.09
18. 13
19. 11
40
6. 14
8.69 10.64
12.29
13.74
15.05
16.26 17.38
18.43
19.43
41
6. 25
8.83 10.82 12.49
13.97
15.30 16.53
17.67 18.74 19.75
42
6.35
8.98 11.00
12.70
14. 19
15.55 16.80
17.95
19.04 20.07
43 6.45
9.12 11.17
12.90
14.42
15.80 | 17.06
18. 24
19.35
20.39
44 6.55
9.26 11.34
13. 10
14.64
16.04
17.32
18. 52
19.64
20.71
45
6.65
9.40 11.51
13.29
14.86
16.28
17.59
18.80
19.94
21.02
46 6.74
9.54 11.68 13.49
15.08
16. 52
17.85
19.08
20.23
21.33
47
48
6.84 9.68 11.85 13.68 15.30
6.94 9.81 12.02 13.88 15.52
49 7.04 9.95 12.19 14.07 15.73
16.76
18. 10
19.35
20.53
21.64
17.00
18.36
19.63
20.82
21.94
17.23
18. 61
19.90 21.11
22. 25
50
22.55
7.13
15.94 17.47 | 18.87 | 20.17 | 21.39
10.08 12.35 14.26
392
HYDRAULIC TABLES
Table 29.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.020—Continued

8
.00055
.00060
0070
.00065 .00070.00075.00080.00085.00090.00095 .00100
10
8.09
8.45 8.79 9.12 9.44
9.75
10.05
10.35
10.63
10.91
11
8.62
9.00 9.37
9.72
10.06
10.39
10. 71
11.02
11. 33
11.62
12
9.13
9.54
9.93
10.30
10.67
11.02
11.35
11.68
12.00
12.32
13
9.63
10.06 10.47
10.87
11. 25
11.62
11.98
12.32
12.66
12.99
14
10. 12
10. 57
11.00
11.42
11.82
12. 21
12.58
12.95 | 13.30
13. 65
15
16
21
23
24
25
26
27
28
29
31
32
33
34
29000 222** *2KRS AN≈ 888 SE*** *****
10.60
11.07 11.52
11.96
12.38
12.78
13. 18
13. 56
13.93
14. 29
11.06
11.56
12.03
12. 48
12.92
13. 34
13. 75
14. 15
14. 54
14.92
17 11.52
12.03 12.52
13.00
13.45
13.89
14. 32
14. 74
15. 14
15.53
18 11.97
19 12.41 12.96
20 12.84 13.41
13.26
12.50 13.01
13.50
13.98
14.43
14.88
15. 31
15.73
16. 14
13.49 14.00 14.49
14.96
15. 42
15.87
16.31
16.73
13.96
14.48
14.99
15. 48
15,96
16.42
16.87
17.31
13.85
14. 42
14.96
15.49
16.00
16.49
16.97 17.43
17.88
13. 68
14.29
14.87
15. 43
15.98
16. 50
17.01
17.50 17.98
18.45
14.09
14.72
15.32
15.90
16.46
17.00
17.52
18.03 18.52
19.00
14.50
15. 14
15.76
16.36
16.93
17.49
18.02 18.55 19.05
19.55
14.90
15. 56
16.20 16.81
17.40
17.97
18.52 19.06 19.58
20.09
15. 29
15.97
16.62 17.25 17.86
18.44
19.01 19.56
20.10
20.62
15.68
16.38
17.05
17.69
18.31
18.91
19.50 20.06
20. 61
21. 15
16.07
16.78
17.47
18. 13
18.76
19.38 19.97
20.55
21. 12
21.67
16.45
17. 18
17.88
18.56
19. 21
19.84❘ 20.45
21.04
21.62
22. 18
30 16.82
17.57
18.29
18.98 19.65
20.29 20.91
21. 52
22. 11
22.68
17.20
17.96
18.69 19.40 20.08
20.74
21.38
22.00
22.60
23. 19
17.56
18. 34
19.09
19.81 20.51
21. 18
21.83
22.47 23.08
23.68
17.93
18.72
19.49
20.22 20.93
21.62
22.29 22.93
23.56
24. 17
18. 29
19. 10
19.88
20.63
21.36
22.06
22.73
23.39 24.03
24.66
35 18.64
19.47 20.27 21.03
21. 77
22.49
23.18
23.85
24.50
25. 14
36
19.00
19.84 20.65 21.43
22.18
22.91
23.62
24. 30
24.97
25.62
37 19.35 20.21 21.03
21.83 22.59
23.33
24.05
24.75
25.43
26.09
38 19.70 20.57 21.41
22.22 | 23.00
23.75
24.48
25. 19
25.88
26.56
39
20.04 20.93 21.78 22.61 23.40
24. 17
24.91
25.63
26.34
27.02
40
20.38 21.29
22.16
22.99
23.80
24.58
25.34
26.07
26.78 27.48
41
20.72 21.64 22. 52
23.37
24. 19
24.99
25. 76
26.50 27.23
27.94
42
21.05 21.99
22.89
23.75
24.59
25.39
26. 17
26.93
27.67
28.39
43 21.39
22.34
23.25
24. 13
24.97
25.79
26.59
27.36
28. 11
28.84
44
21.72
22.68 23. 61
24.50
25.36
26. 19
27.00
27.78
28. 54
29.28
45
22.05
23.03 23.97
24.87
25.74
26.59
27.41
28.20
28.97
29.73
46 22.37
23.37 24.32
25. 24
26. 12
26.98
27.81
28.62 29.40
30. 16
48 23.01
47 22.69 23.70 24.67
24.04 25.02
25.60
26.50
27.37
28. 21
29.03 29.83
30.60
25.96 26.87
27.76
28.61
49 23.33 24.37 25.37
26.32 27.25
28. 14
29.01
29.44 30.25 31.03
29.85 30.67 31.46
50 23.65 24.70 25.71 26.68 27.62
31.89
28.52 29.40 30.25
31.08
HYDRAULIC TABLES
393
Table 29.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.020—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
10
16
17
18
20
21
24
25
26
27
28
29
30
31
32
33
35
36
37
40
41
43
45
PIRRE 12222 2223* *22*2 ***** 1500 27*** ***** 3
10.91
13.36
15.42
17.24
18.89
20.40
21.81
23. 13
24.39
11
11.62
14.23
16. 43
18.37
20.13
21.74
23. 24
24.65
25.99
12
12.32
15.08
17.42
19.47
21.33
23.04
24. 63
26.12
27. 54
13 12.99 15.91
18.37
20.54
22.50
24.30
25.98
27.56
29.05
14
13.65
16.72
19.30
21.58
23.64
25.53
27.30
28.95
30.52
15 14.29
14.92
17.50
20. 21
22.60
24.75
26.74
28.58
30.31
31.95
18. 27
21.10
23.59
25.84
27.91
29.84
31.65
33.36
15.53
19.03
21.97
24.56
26.91
29.06
31.07
32.95
34. 74
16.14
19.76
22.82
25.52
27.95
30.19
32. 28
34.23
36.08
19
16. 73
20.49
23.66
26.45
28.98
31.30
33.46
35.49
37.41
17.31
21.20
24.48
27.37
29.98
32.39
34.62
36.72
38.71
17.88 21.90 25.29 28.28
30.98
33.46
35.77
37.94
39.99
18.45
22.59
26.09
29.17
31.95
34.51
36.89
39. 13
41.25
19.00 23.27
26.87
30.05
32.91
35.55 38.00
40.31
42.49
19.55
23.94
27.65
30.91
33.86
36.57
39.10
41.47
43. 71
20.09
24.60
28.41
31.76
34.79
37.58
40. 18
42. 61
44.92
20.62
25. 26
29.16
32.60
35. 72
38.58
41.24
43.74
46. 11
21.15
25.90
29.91
33.44
36.63
39.56
42. 29
44.86
47.28
21.67
26.53
30.64 34.26
37.53
40.53
43.33
45.96
48. 44
22.18 27.16
31.36
35.07
38.41
41.49
44.36
47.05
49.59
22.68 27.78
32.08
35.87
39.29
42.44
45.37
48.12
50.72
23.19
28.40
32.79 36.66
40.16
43.38 46.37
49.19
51.85
23.68
29.00
33.49 37.44
41.02
44.31
47.36
50. 24
52.96
24. 17
29.61
34.19
38.22 41.87
45.22
48.35
51.28
54.05
34
24.66
30.20 34.87
38.99
42.71
46. 13
49.32
52.31
55. 14
25. 14
30.79
35.55
39.75
43. 54
47.03
50.28
53.33
56.22
25.62
26.09 31.95
38 26.56
31.37
36. 23
40.50
44.37
47.92 51.23
54.34
57.28
36.90
41.25
45. 19
48.81 52.18
55.34
58.34
32.53
37.56
41.99
46.00
49.68 53.11
56.34
59.38
39 27.02 33.09
38. 21
42.72
46.80
50.55 54.04
57.32
60.42
27.48
33.66
38.86
43.45
47.60
51.41 54.96
58.30
61.45
27.94
34.22
39. 51
44. 17
48.39 52.27
55.87
59.26
62.47
42
28.39
34.77
40. 15
44.89
49.17 53.11
56.78
60.22
63.48
28.84
35. 32
40.78
45.60
49.95 53.95
57.68
61. 18
64.48
44 29.28
35.86
41.41
46.30
50.72
54.78
58.57
62. 12
65. 48
29.73
36. 41
42.04 47.00
51.49
55. 61
59.45
63.06
66.47
46
30. 16
36.94
42.66 47.69
52.25
56.43
60.33
63.99
67.45
47
30.60
37.48
43.27 48.38 53.00
57.25 61.20 64.91
68.42
48
31.03
38.01 43.89 49.07
53.75
58.06
62.06 65.83
69.39
49
31.46 38.53
44.49 49.75
54.49
58.86
62.92 66.74
70.35
50
31.89 39.06 45. 10
50.42
55.23
59.66
63.78
67.65
71.31
563189°-44———26
394
HYDRAULIC TABLES
Table 29.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.020-Continued

.0055
.0060 .0065 .0070 .0075 .0080 .0085 .0090 .0095
.0100
T
13
21
27
33
35
CERRE B**** 228** *25*2 A**** ---88 GE**
10
25.58
26.71
27.80 28.85 29.87
11
27.25
28.47
29.63 30.75 31.83
12
28.88
30. 17
31.40
32.58
33.73
30.85 31.80 32.72 33.61 34.49
32.87 33.88 34.86 35.82
34.83 35:90 36.95 37.96
36.75
38.94
30.46
31.82
33.12
34.37
35.58
36.74
37.87 38.97 40.04
41.08
14
32.01
33.43
34.80
36. 11
37.38
38.60
38.60
39.79 | 40.94 | 42.07
43. 16
15 33.51 35.00 36.43
37.81
39. 14
40.42 | 41.66 42.87
44.05
45. 19
16
34.99
36.54 38.04
39.47
40.86
42.20 43.50 | 44.76
45.98
47. 18
36.43
38.05
39.60
41.10
42.54
43.94
45.29 46.60
47.88
49.12
18
37.85 39.53
41. 14
42.70
44. 19
45.64
47.05 48.41
49.74
51.03
19
39.23
40.98
42.65
44.26
45.82
47.32
48.78
50.19 51.56
52.90
20 40.60 42.41
44. 14
45.80
47.41
48.97
50.47
51.94
53.36
54.74
41.94
43.81
45.60
47.32 48.98 50.58
52. 14
53.65
55. 12
56.55
43.26 45.19 47.03 48.81 50.52
52.18
53.78
55. 34
56.86
58.34
23 44.56 46.55 48.45
50.28
52.04
53.75
55.40
57.01
58.57
60.09
24
45.85
47.89 49.84
51.72
53.54
55.29
57.00
58.65 60.25
61.82
47.11
49.21
51. 22
53. 15
55.01
56.82
58.57
60.27
61.92
63.53
26
48.36 50.51
52.57
54.56
56.47
58.32
60. 12
61.86
63.56
65. 21
49.59 51.80
53.91
55.95
57.91 59.81
61.65
63.44
65. 18
66.87
28 50.81
53.07 55. 24
57.32
59.33
61.28
63. 16
65.00
66.78
68.51
29
52.01 54.32
56.54
58.68
60.74
62.73
64.66
66.53
68.36
70. 13
30
53.20
55.57 57.84
60.02
62. 13
64.16
66.14 68.05 69.92
71.74
31
54.38 56.79
59.11
61.34
63.50
65.58
32
55. 54
58.01
60.38 62.66
64.86
56.69 59.21
61.63
63.96
66. 20
34
57.83
60.40
62.87
65. 24
67.53
67.60 69.56 71.46
66.98 69.04 71.05 72.99
68.37 70.48 72.52 74.51
69.75
73.32
74.89
76.44
71.89 73.98 76.00
77.98
58.96
61.58
64. 10
66.51
68.85
71.11
73.30 | 75.42 | 77.49
79.50
36
60.08
62.75
65.31
67.78 70.15
72.46
74.68 76.85 | 78.96
81.01
37
61. 18
63.90
66.51 69.02 71.45
73.79
76.06
78.27 80.41
82.50
38
62.28
65.05
39 63.37
66. 19
67.71 70.26
68.89 71.49
72.73
75. 11
77.43
79.67 81.85
83.98
74.00.76.43
78.78
81.06 | 83.28
85.45
40 64.45
67.31
70.06
41
42
72.38
43
44
72.71 75.26 77.73 80.12 | 82. 44 | 84.70
65.52 68.43 71. 23 73.91 76.51
66.58 69.54
75.11 77.75
67.63 70.64 73.52 76.30 78.98
68.68 71.73 74.66 77.48 80.20
86.90
79.02 | 81.45 83.81 86. 11
88.34
80.30 82.77
85.17
87.50
89.77
81.57 84.08 86.51
88.89
91. 19
82.83 85.38
87.85
90.26
92.60
*****
45
69.71
72.81 75.79 78.65
81.41
84.08 | 86.66
89.18
91.62
94.00
46 70.74 73.89 76.90 79.81
82.61
85.32 87.94
90.49 92.97
95.39
47 71.76 74.95 78.01 80.96
48 72.78 76.01 79.12 82.10
49 73.78 77.07 80.21 83.24
83.80 86.55
84.99 87.77 90.47 93.10 95.65
86.16 88.99 91.73 94.39 96.97
89.21
91.80 94.32
96.77
98.13
99.49
50 74.79 78.11 81.30 84.37
100.84
87.33 90.19 92.97 95.67 98.29
HYDRAULIC TABLES
395
Table 29.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.020—Continued

Go
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
CH241
10 34.49
48.77
59.73
68.97
77.12
11
36.75
51.97
63. 65
73.50
12
38.94
55.08
67.45
13
41.08
58.09
71.15
14
43. 16
61.04
74.75
84.48 91.24 97.54 103. 46| 109.06
82. 17 90.02 97.23 103.94 110. 25 116. 21
77.89 87.08 95.39 103.04 110.15 116.83 123. 15
82.16 91.85 100.62 108. 68 116. 19 123.24 129.90
86.32 96.51 105.72 114.19 122.07
129.48 136.48
15
45. 19
63.91
78.27
16
47.18
66.72
81.71
90.38 101.05 110.69 119.56 127.82
94.36 105.49 115.56 124. 82
135.57
142. 91
133. 44
141. 53
149. 19
17
49. 12
69.47
85. 08
98.25 109.84 120.33 129.97
138.94
147.37
155. 34
18
51.03
72. 17
19
52.90
74.82
88.39 102.06 114. 11 125.00
91.63 105.81 118.30 129.59
135. 02
144. 34
153. 09
161.38
139.97
149.64| 158.71
167.30
20
54.74
77.42
94.82 109.49 122.41|
134. 10
144.84
21
56.55
79.98 97.96 113.11 126. 46
138. 53
22
58.34
82.50 101.04 116.67
130. 44
142. 89|
23
60..09
84.98 104.08 120. 18
134. 37
147. 19
154.84 164. 23| 173. 12
149.63 159.96 169.66| 178.84
154. 34| 165.00 175.01 184.47
158.99 169.96 180.27 190. 02
24
61.82
87.43 107.08 123.64
138. 23
151.43
163. 56
174.85
185. 46
195. 49
25
63.53
89.84 110.03 127.05 142.05
155. 61
168.07
179. 68
190.58
200.89
26
65. 21
92. 22 112.94 130.42
145.81
159.72
172. 53|
184. 44|
195. 63
206. 21
27
66.87
94.57 115.82 133. 74
149. 53
163. 80
176.92
189. 14
200. 61
211.46
28
68.51
96.89 118.66 137.02 153.20
167.82
181. 26|
193.78
205. 53
216. 65
29
70.13
99.18 121.47 140.27 156.82 171.79
185.55 198.37
210.40
221.78
30
71.74
101.45 124. 25 143. 47
160.41
175.72
189.80
202. 90|
215. 21❘ 226.85
31
73.32
103.69 127.00 146.64
163.95
179. 60
193.99
207.38
219. 96
231.86
32
74.89
105.91 129. 71
149. 78
167.46
183. 44
198. 14
211. 82
224. 67
236.82
33
76.44
34
77.98
108. 11 132. 40
110.28 135.06 155.96 174.37 191. 01
152.88
170.93
187.24
202.25|
216. 21|
229. 33
241.73
206.31 220. 56
233.94
246. 59
35
79.50
36 81.01
112.43 137.70 159.00 177.77
114.56 140.31 162.01
194.73
181. 14
198. 43
210.34| 224.86 238.50 251.40
214.32 229.12| 243.02| 256.17
37
82.50
116.67 142.90 165.00
184. 48
202.08
218.28 233.35 247.50 260.89
38 83.98
39
85.45
118.77 145. 46 167.96 187.79 205. 71
120.84 148.00 170.89 191.07 209.30
222. 19
237.53 251.94 265. 57
226.07
241. 68
256. 34
270. 21
40
86.90
122.90 150.52 173.80
194.32 212.87
229.92
245.80
260. 71
274.81
41 88.34
124.94 153.02 176. 69
197.54
216. 40
233. 74
249.88 265. 03
279.37
42 89.77
43 91.19
44 92.60
126.96 155. 49
179. 55
200. 74
219.90
237.52
253.92 269. 32
283.89
128.97 157.95 182.39
203.92
223. 38
241.28 257.94 273. 58
288.38
130.96 160.39 185. 21
207.07
226. 83
245.00 261.92 277.81 292. 84
45
94.00 132.94 162.81 188.00 210.19 230.25 248.70| 265.87| 282.00] 297.26
46 95.39 134.90 165.22 190.78 213.29 233.65 252.37 269.80 286.16 301.64
47 96.77 136.85 167.60 193.53 216.37 237.03 256.02 273.69 290.30 306.00
48 98.13 138.78 169.97 196.27 219.43| 240.38 259.64 277.56 294.40] 310. 32
49 99.49 140.70 172.32 198.98 222.47 243.70 263.23 281.40 298. 47 314.62
50
142. 61 174. 66 201.68 225. 49 247.01 266.80 285. 22 302. 52 318.89
100.84
396
HYDRAULIC TABLES
Table 30.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0225


Co
.00005
.00010
0030
.00015.00020.00025.00030.00035.00040.00045 | .00050
00040
↑
0.2
0.16
0.23 0.28
0.32 0.36
0.39 0.42 0.45 0.48
0.51
0.4
.25
.36
.44
.51
.57
.62 .67 .72
.76
.80
0.6
.33
.47
.58
.66
.74
.81
.88
.94
1.00
1.05
0.8 .40
.57
.70
.80
.90
.99
1.06
1. 14
1.21
1. 27
1,0
.47
.66
.81
.93
1.04
1. 14
1.24
1. 32
1.40
1.48
1.2
.53
.75
.91
1.05
1.18
1.29
1.40
1.49
1.58
1.67
1.4
.58
.83
1.01
1.17
1.31
1. 43
1.55
1.65
1.75
1.85
1.6
.64
.90
1. 11
1.28
1. 43
1.56
1.69
1.81
1.92
2.02
1,8
.69
.98
1.20
1.38
1. 55
1.69
1.83
1.95
2.07
2. 19
2.0
.74
1.05
1.28
1.48
1.66
1.82
1.96
2.10
2.22
2.34
2.2
.79
1. 12
1.37
1.58
1.77
1.93
2.09
2.23
2.37
2.50
2.4
.84
1. 18
1.45
1.67
1.87
2.05
2. 21
2.37
2. 51
2.65
2.6
.88
1.25
1.53
1.77
1.97
2.16
2.34
2.50
2.65
2.79
2.8
.93
1.31
1.61
1.86
2.07
2. 27
2.45
2.62
2.78
2.93
3.0
.97
1.37
1.68
1.94
2.17
2.38
2.57
2.75
2.91
3.07
3.2
1.01
1.43
1.76
2.03
2.27
2.48 2.68
2.87
3.04
3. 21
3.4
1.06
1.49
1.83
2. 11
2.36
2.59
2.79
2.99
3.17
3.34
3.6
1. 10
1.55
1.90
2. 19
2. 45
2.69
2.90
3.10
3.29
3.47
3.8
1. 14
1. 61
1.97
2. 27
2.54
2.79
3.01
3. 22
3.41
3.60
4.0
1.18
1.66
2.04
2.35
2.63
2.88
3. 11
3.33
3.53
3.72
4.2
1. 22
1.72
2.11
2.43
2.72
2.98
3.22
3.44
3.65
3.84
4.4
1. 25
1.77
2. 17
2. 51
2.80
3.07
3.32
3.55
3.76
3.97
4.6
1.29
1.83
2. 24
2.58
2.89
3. 16
3.42
3.65
3.88
4.08
4.8
1.33
1.88
2.30
2.66
2.97
3.26
3.52
3.76 3.99
4.20
5.0
1.37
1.93
2.37
2.73
3.05
3.34
3.61
3.86
4. 10
4.32
5.2 1.40
1.98
2.43
2.80
3. 13
3.43
3.71
3.96
4. 21
4.43
5.4
1.44
2.03
2.49
2.87
3. 21
3.52
3.80
4.07
4. 31
4.55
5. 6
1.47
2.08
2.55 2.95
3.29
3. 61
3.90
4. 17
4.42
4.66
5.8
1.51
2.13
2.61 3.02
3.37
3.69
3.99
4. 26
4.52
4.77
6.0
1. 54
2.18
2.67
3.08
3.45
3.78
4.08
4.36
4.63
4.88
6.2
1.58
2. 23
2.73
3. 15
3.52
3.86
4. 17
4.46
4.73
4.98
6.4
1.61
2.28
2.79
3. 22
3.60
3.94
4. 26
4.55
4.83
5.09
6.6
1. 64
2.32
2.85
3.29
3.67
4.02
4. 35
4. 65
4.93
5. 20
6.8
1.68
2.37
2.90
3.35
3.75
4. 11
4.43
4.74
5.03
5.30
7.0
1.71
2.42
2.96
3.42
3.82
4. 19
4.52
4.83
5. 13
5. 40
7.5
1.79
2. 53
3. 10
3.58
4.00
4.38
4.73
5.06
5.37
5. 66
8.0 1.87
2.64
3.24
3.74
4. 18
4.58
4.94
5. 28
5.60
5.91
8.5 1.95
2. 75
3.37
3.89
4.35
4.76
5. 15
5.50
5.84
6. 15
9.0 2.02
2.86
3.50
4.04
4.52
4.95
5.35
5.72
6.06
6.39
9.5 2.09
6.62
2.96
6.28
3.63
5.92
4. 19
5.54
4.68
5. 13
HYDRAULIC TABLES
397
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
N
n=.0225—Continued



00070
.00060.00065 .00075.00080 |
.00065.00070.00075 .00080 .00085 .00090.00095 .00100
.00055
T
0.2
0.53
0.55 0.58
0.60
0.62
0.64 0.66
0.68
0.70
0.71
0.4
.84
.88
.91
.95
.98
1.01
1.05
1.08
1.11
1. 13
0.6
1. 10
1. 15
1.20
1.24
1,29
1. 33
1.37 1.41
1.45
1.49
0.8
1.33
1.39
1.45
1. 51
1.56
1.61
1.66
1.71
1.75
1.80
1.0
1.2
0246 00
1.55
1.62
1,68
1.75
1.81
1.87
1.93
1.98
2.04
2.09
1.75
1.83
1.90
1.97
2.04
2. 11
2. 17
2. 24
2.30
2.36
2.8
si ci si ci si
O2 + CS 00
1.4
1,6
1.8
2.0
2.2
2.4
2.6 2.93
1.94
2.02
2. 11
2. 19
2.26
2.34
2. 41
2. 48
2.55
2. 61
2. 12
2. 21
2.30
2.39
2.47
2.56
2.63
2.71
2.78
2.86
2.29
2.39
2.49
2.59
2.68
2.76
2.85
2.93
3.01
3.09
2.46 2.57
2.67
2.77
2.87
2.97
3.06
3. 15
3.23
3.32
2.62
2.74
2.85
2.96
3.06
3. 16
3.26
3.35
3.44
3.53
2.78
2.90
3.02
3. 13
3. 24
3.35
3.45
3. 55
3.65
3.74
3.06
3. 18
3.30
3.42
3.53
3.64
3.75
3.85
3.95
3.08
3. 21
3.35
3.47
3. 59
3.71
3.83
3.94
4.04
4. 15
3.0 3.22
3.37
3.50
3.63
3.76
3.89
4.01
4. 12
4. 23
4.34
3.2 3.36 3.51
3.66
3.79
3.93
4.06
4. 18
4.30
4.42
4. 54
3.4
3.50
3.66
3.81
3.95
4.09
4. 22
4. 35
4. 48
4.60
4.72
3.6
3. 64
3.80
3.96
4. 10
4.25
4.39
4. 52
4. 65
4. 78
4.91
3.8
3.77
3.94
4. 10
4. 26
4.40
4.55
4. 69
4.82
4.96
5.09
4.0
3.90
4.08
4. 24
4.40
4.56
4.71
4.85
4.99
5. 13
5. 26
4.2
4.03
4. 21
4. 38
4.55
4.71 4.86
5. 01
5. 16
5.30
5.44
4. 4
4. 16
4.34
4.52
4.69 4.86
5.02
5. 17
5.32
5. 47
5. 61
4.6
4. 28
4.47
4.66
4.83
5.00
5. 17
5.33
5.48
5. 63
5.78
4.8
4. 41
4.60
4.79
4.97
5. 15
5.32
5. 48
5. 64
5.79
5.94
5.0
5.2
5.4
5. 6
5.8
12146 ∞
4. 53
4.73
4.92
5. 11
5. 29
5.46
5. 63
5.79
5.95
6. 11
4.65
4.86
5.05
5. 24
5.43
5. 61
5.78
5.95
6. 11
6. 27
4.77
4.98
5. 18
5. 38
5. 57
5.75
5.93
6. 10
6. 27
6.43
4.88
5. 10
5.31
5. 51
5.70
5.89
6.07
6. 25
6.42
6. 59
5.00
5. 22
5. 44
5. 64
5.84
6.03
6. 22
6.40
6.57
6.74
6.0
5. 11
5. 34
5. 56
5.77
5.97
6. 17
6.36
6. 54
6.72
6.90
6.2
5.23
5.46
5. 68
5.90
6. 10
6.30
6.50
6.69
6.87
7.05
6.4
5.34
5. 58
5.80
6.02
6. 23
6. 44
6. 64
6. 83
7.02
7.20
6.6
5. 45
5.69
5.92
6. 15
6.36
6. 57
6.77
6.97 7.16
7.35
6.8
5.56
5.81
6.04
6. 27
6.49
6.70
6.91
7.11
7.31
7.50
7.0
5.67
5.92
6. 16
6. 39
6.62
6.84
7.05
7.25
7.45
7.64
7.5
5.93
6. 20
6.45
6.70
6.93 7.16 7.38
7.59
7.80
8.00
8.0 6.20
6.47
6.74 6.99
7.23
7.47
7.70
7.93
8. 14
8.35
8.5
6.45
6.74
7.01
7.28 7.53
7.78
8.02
8. 25
8.48
8.70
9.0
6.70
7.00
7.29
7.56
7.83 8.08 8.33
8.57
8.81
9.04
9.5
9.37
6.95
9. 13
7.26 7.55
8.89
7.84
8.64
8. 11
8.38
398
HYDRAULIC TABLES
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= ·r2/3§1/2
n
n=.0225—Continued

Ꮽ
.0010
.0015
.0020
.0025 .0030 .0035 .0040
.0045
.0050
T
0.2
0.71
0.87
1.01
1.13
1.24
1.34
1.43
1.52
1.60
0.4
1. 13
1.39
1.60
1.79 1.96
2.12
2. 27
2. 41
2.54
0.6
1.49
1.82
2. 10
2.35
2.57
2.78
2.97
3. 15
3. 32
0.8
1.80
2.20
2.55
2.85
3.12
3.37
3.60
3.82
4.02
1.0
2.09
2.56
2.95
3.30
3.62
3.91
4. 18
4.43
4.67
1.2
2.36
2.89
3.34
3.73
4.08
4.41
4.72
5.00
5.27
1.4
2. 61
3. 20
3.70
4. 13
4. 53
4.89
5. 23
5. 54
5.84
1.6
2.86
3.50
4.04
4.52
4.95
5.35
5.71
6.06
6. 39
1.8
3.09
3.78
4.37
4.89
5.35
5.78
6. 18
6.56
6.91
2.0
3. 32
4.06
4.69
5. 24
5.74
6. 20
6.63
7.03
7.41
2.2
3.53
4.33
5.00
5.59
6. 12
6.61
7.07
7.49
7.90
2.4
3.74
4.59
5. 29
5.92
6. 48
7.00
7.49
7.94
8.37
2.6
3.95
4.84
5.58
6. 24
6.84
7.39
7.90
8.38
8.83
2.8
4. 15
5.08
5.87
6.56
7.19
7.76
8.30
8.80
9.28
3.0
4. 34
5.32
6. 14
6.87
7.52
8.13
8.69
9.22
9.71
3.2
4.54
5.55
6. 41
7.17
7.86
8.48
9.07
9.62
10. 14
3.4
4. 72
5.78
6.68
7.47
8. 18
8.83
9.44
10.02
10.56
3.6
4.91
6.01
6.94
7.76
8.50
9. 18
9.81
10. 41
10.97
3.8
5.09
6.23
7.19
8.04
8.81
9.51
10. 17
10.79
11.37
4.0
5. 26
6.45
7.44
8.32
9.12
9.85
10. 53
11. 16
11.77
4.2
5. 44
6.66
7.69
8.60
9.42
10. 17
10.87
11.53
12. 16
4.4
5. 61
6.87
7.93
8.87
9.71
10.49
11. 22
11.90
12. 54
4. 6
5.78
7.07
8. 17
9. 13
10.01
10.81
11.55
12. 25
12.92
4.8
5.94
7.28
8.40
9.40
10. 29
11.12
11.89
12. 61
13.29
5.0
6. 11
7.48
8.64
9.66
10.58
11.42
12. 21
12.95
13.66
5.2
6. 27
7.68
8.87
9.91
10.86
11.73
12. 54
13.30
14.02
5.4
6. 43
7.87
9.09
10. 16
11. 13
12.03
12.86
13. 64
14.37
5.6
6.59
8.07
9. 31
10.41
11. 41
12. 32
13. 17
13.97
14.73
5.8
6.74
8.26
9.53
10.66
11.68
12. 61
13.48
14.30
15.08
6.0
6.90
8.45
9.75
10.90
11.94
12.90
13.79
14.63
15.42
6.2
7.05 8.63
9.97
11.14
12. 21
13. 19
14. 10
14.95
15.76
6.4
7.20
8.82
10. 18
11.38
12.47
13. 47
14.40
15. 27
16. 10
6.6
7.35 9.00
10.39
11.62
12.73
13.75
14.70
15.59
16.43
6.8
7.50
9.18
10.60
11.85
12.98
14.02
14.99
15.90
16.76
7.0 7.64
9.36
10.81
12.08
13. 24
14.30
15. 28
16. 21
17.09
7.5 8.00
9.80 11.32
12.65
13.86
14.97
16.00
16.98
17.89
8.0 8.35
10.23
11.81
13. 21
14.47
15.63
16.71
17.72
18.68
8.5 8.70
10. 65
12.30
13.75
15.07
16. 27
17.40 18.45
19.45
9.0
9.04
11.07
12.78
14.29
15.65
16.91
18.07 19.17
20.21
9.5
20.95
9.37
19.87
11.47
18.74
13. 25
17.53
14.81
16. 23
HYDRAULIC TABLES
399
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.0225—Continued

.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090 .0095
.0100
T
0.2
1.68
1.75
1.82
1.89 1.96
2.02
2.08
2. 14
2.20
2. 26
0.4
2.66
2.78
2.89 3.00 3.11
3. 21
3.31
3.40
3.49
3.59
0.6
3.48
3.64
3.79
3.93
4.07
4.20
4.33
4. 46
4.58
4.70
0.8
4. 22
4.41
4.59
4.76
4.93
5.09
5.25
5.40
5.55
5. 69
1.0
4.90
5. 12
5.32
5.53
5.72
5.91
6.09
6. 27
6.44
6.60
1.2
5.53
5.78
6.01
6. 24
6.46
6.67
6.88
7.08
7.27
7.46
1.4
6. 13
6.40
6.66
6.92
7.16
7.39
7.62
7.84
8.06
8.27
1.6
6.70
7.00
7.28
7.56
7.82
8.08
8.33
8.57
8.81
9.03
1.8
7.25
7.57
7.88
8. 18
8.46
8.74
9.01
9.27
9.53
9.77
2.0
7.78
8.12
8.45
8.77
9.08
9.38
9.67
9.95
10. 22
10.48
2.2 8.29
8.65
9.01
9.35
9.67
9.99 10.30
10.60
10.89
11. 17
2.4
8.78
9. 17
9.54
9.91
10.25
10.59
10.91
11.23
11.54
11.84
2.6
9.26
9.67
10.07
10.45
10.81
11. 17
11.51
11.85
12. 17
12.49
2.8
9.73
10. 16
10.58
10.98
11.36
11.74
12.10
12.45
12.79
13. 12
3.0
10.19
10. 64
11.08
11.49
11.90
12.29 12.67
13.03
13.39
13.74
3.2
10. 64
11. 11
11.56
12.00
12.42
12.83
13.22
13.61
13.98
14. 34
3.4
11.07
11.57
12.04 12.49 12.93
13.36
13.77
14. 17
14.56
14.93
3.6
11.50 12.02
12.51
12.98
13.43
13.88
14.30
14.72
15.12
15.51
3.8 11.93
12.46 12.97
13.46
13.93
14. 38
14.83
15. 26
15.68
16.08
4.0
12. 34
12.89
13.42
13.92
14. 41
14.89
15.34
15.79
16.22
16. 64
4.2
12.75
13.32
13.86 14.38
14.89
15.38
15.85 16.31 16.76
17.19
4.4
13. 15
13.74
14.30
14.84
15.36
15.86
16.35 16.82 17.28
17.73
4.6
13.55
14. 15
14.73
15.28
15.82
16.34 16.84 17.33 17.80
18.27
4.8
13.94
14.56
15. 15
15.72
16. 28
16.81
17.33 17.83
18.32
18.79
5.0
14.32
14.96 15.57
16.16
16.72
17.27
17.80
18.32
18.82
19.31
5.2
14.70
15.35 15.98 16.59
17.17
17.73
18.28
18.81
19.32
19.82
5. 4
15.08
15.75
16.39
17.01
17.60
18. 18
18.74
19. 29
19.81
20.33
5.6
15.45
16. 13
16.79
17.43 18.04
18.63
19.20
19.76
20.30
20.83
5.8
15.81
16. 51
17.19
17.84 18.46
19.07
19.66
20.23
20.78 21.32
6.0
16. 17
16.89
17.58
18.25 18.89
6.2
16.53
17.27
17.97
18.65
19.30
19.51
19.94 20.55 21.15
20.11 20.69
21.26
21.81
21.72
22.29
6.4 16.88
17.63
18. 35
19.05
19. 72
17.23 18.00
6.6
6.8 17.58 18.36 19.11 19.83 20.53
18.74
19.44
20.12
20.36 20.99 21.60
20.78 21.42 22.05 22.65
21.20 21.86 22.49 23.10
22.19
22.77
23. 24
23.71
7.0 17.92
18.72 19.48 20.22 20.93
21.62
22.28
22.93
23.56
24. 17
7.5 18.77
19.60 20.40 21.17 21.91
22.63
23. 33
24.01
24.66
25. 31
8.0 19.59
20.46 21.30 22.10 22.88
23.63
24.36
25.06 25.75
26.42
8.5 20.40
9.0
21.31 22.18
21.19
22.13 23.04
23.01 23.82
23.91 24.75
24.60
25.36
26.10 26.81
27.51
25.56
26.35 27.11 27.85
28.58
9.5
29.62
21.97
27.31 28.10 28.87
22.95 23.88
24.79 25. 66 26.50
400
HYDRAULIC TABLES
Table 30.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.0225-Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2
2.26
3.19
3.91 4.52 5.05
5.53 5.98
6.39
6.78
7.14
0.4
3.59
5.07
6.21 7.17 8.02
8.78
9.49
10.14
10.76
11.34
0.6
4.70
6.64
8.14 9.40
10.51
11.51
12.43
13.29
14.09
14.86
0.8
5. 69
8.05 9.86 11.38
12.73
13.94
15.06
16.10
17.07
18.00
1.0
6.60
9.34
11.44 13.21
14.77
16. 18
17.47 18.68
19.81
20.89
1.2
7.46
10. 55
12.92
14.92
16.68
18.27
19.73
21.09
22.37
23.58
1.4 8.27
11.69
14.32
16.53
18.48
20.25
21.87
23.38
24.80
26. 14
1.6
9.03
12.78
15.65
18. 07
20.20
22.13
23.90
25. 55
25.55
27.10
28.57
1.8 9.77
13.82 16.93
19.55
21.85
23.94
25.86
27. 64
29.32
30.90
2.0
10.48
14.83
18.16
20.97
23.44
25.68
27.74
29.65
31.45
33.15
2.2
11.17
15.80
19.35
22.34
24.98 27.36
29.56
31.60
33.52
35.33
2.4 11.84 16.74
20. 51
23.68 26.47
29.00
31.32
33. 49
35.52
37.44
2.6 12.49 17.66
21.63
24.98
27.92
30. 59
33.04 | 35.32
37.46
39.49
2.8
13.12
18.55
22.72❘ 26. 24
29.34
32. 14
34.71 37.11 39.36
41.49
3.0
13.74
19.43
23.79
27.48
30.72
33.65
36.35 38.86
41.21
43. 44
3.2
14.34
20. 28
24.84 28.68
32.07
35. 13
37.94 40.56
43.03
45.35
3.4
14.93
21.12
25.87 29.87 33.39
36.58
39.51
42.24
44.80
47.22
3.6
15. 51
21.94
3.8
16.08
22.74
27.86
26.87 31.03
32.17
34.69
38.00
41.04
43.88
46. 54
49.06
35.96
39. 39
39.39
42.55
45. 49
48.25
50.86
4.0
16. 64
23. 54
28.83
33.28 37.21
40.76
44.03
47.07
49.93
52.63
4.2
17.19
24. 31
4.4
17.73
4.6
18.27
29.78 34.38
25.08 30.72 35.47
25.83 31.64 36.53 40.85
38.44
42. 11
45.49
48.63 51.58
54.37
39.65
43. 44
46.92
50.16 53.20
56.08
44.75
48.33 51.67 54.80
57.77
4.8
18.79
26.58 32.55
37.59 42.02
46.03
49.72 53.15
56,38
59.43
5.0 19.31
5.2 19.82 28.03
5.4 20.33
5.6 20.83 29.45
27.31 33.45
38.62
43. 18
47.30
51.09
54. 62
57.93
61.07
34.33
39.65
44.33
48.56
52.45
56. 07
59.47
62.69
28.75
35. 21
40.66
45.46
49.79
53.78
57.50
60.98
64.28
36.07
41.65
46. 57
51.02
55. 10
58.91
62.48
65.86
5.8 21.32
30.15 36.93
42.64
47.67
52. 22
56.41
60.30 63.96
67.42
6.0 21.81
6.2 22.29
6.4 22.77
30.84 37.77
43. 61
48.76
53.42 57.70 61.68
65.42
68.96
31.52 38.61
44.58
49.84 54.60 58.97
63.04
66.87
70.49
32. 20
39.43
45.53
50.91
55.77 60.23 64.39
68.30
71.99
6.6 23.24
32.86 40.25
46. 48
51.96
56.92 61.48 65.73 69.71
73.49
6.8 23.71
33.52 41.06
47.41
53.01
58.07 62.72 67.05
71.12
74.96
•
7.0 24.17
34. 18
41.86
48.34 54.04
59.20 63.94
68.36
72.50
76.42
7.5
25.31
35.79
43.83
50.61 56.58
61.98 66.95
71.57
75.92 80.02
8.0
26.42
37.36
45.76
52.84 59.07
64.71 69.89
74.72
79.25
83.54
8.5
27.51
38.90 | 47.64
55.01 61.51
67.38 72.78 77.80
82.52
86.99
9.0 28.58
40. 41
49.49
57.15 63.90
70.00 75.60 80.82
85.73
90.36
9.5 29.62
78.38 83.79 88.87 93.68
41.90 51.31
72.57
59.25 66.24
HYDRAULIC TABLES
401
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0225—Continued

.00005
.00010.00015 | .00020
.00025 .00030.00035.00040.00045.00050
CERIE 19E-2 22882 22222
10
2. 17
3.07
3.75 4. 34
4.85
5.31
5.74
6. 13
6.50
6.85
11
2.31
3.27
4.00
4.62
5. 16
5.66
6. 11
6.53
6.93
7.30
12
2.45
3.46
4.24
4.90
5. 47
6.00
6.48
6.92
7.34
7.74
13
2.58
3.65
4.47
5. 16
5.77
6.32
6.83
7.30
7.75
8. 16
14
2.71
3.84
4.70
5.43
6.07
6.64 7.18
7.67
8. 14
8.58
15
2.84
4.02
4.92
5.68
6.35
6.96
7.52
8.03
8.52
8.98
16
2.97
4. 19
5. 14
5.93
6.63
7.26
7.85
8.39
8.90
9.38
17
3.09
4.37
5.35
6. 18
6.90
7.56
8. 17
8.73
9.26
9.76
18
3.21
4. 54
5. 56
6.42
7.17 7.86
8.49
9.07
9.62
10. 14
3.33
4.70
5.76
6.65
7.44
8.15
8.80
9.41 9.98
10.52
20
3.44
4.87
5.96
6.88
7.69 8.43
9.10
9.73
10.32
10.88
21
3.55
5.03
6.16
7.11
7.95
8.71 9.40 10.05
10.66
11. 24
3.67
5. 19
6.35
7.33
8.20
8.98
9.70
10.37
11.00
11.59
23
3.78
5.34
6.54
7.55
8.45
9.25 9.99
10.68
11.33
11.94
24
3.89
5.50
6.73 7.77
8.69
9.52
10.28
10.99
11. 66
12.29
25
3.99
5.65
6.92
7.99
8.93
9.78
10.56
11.29
11.98
12. 63
26
4. 10
5.80
7.10
8.20
9.16
10.04
10.84
11.59
12.30
12.96
27
4. 20
5.94
7.28
8.41
9.40
10.30
11. 12
11.89
12. 61
13. 29
28
4. 31
6.09
7.46 8.61
9.63
10.55
11.39
12. 18
12.92
13. 62
29
4.41
6.23
7.64 8.82
9.86
10.80
11. 66
12.47
13. 22
13.94
30
4. 51
6.38
7.81 9.02
10.08
11.04
11.93
12.75
13. 53
14.26
31
4.61
6.52 7.98
9.22 10.30
11.29
12. 19
13.03
13.83
14. 57
32
4.71
6.66 8.15
9.41 10.53 11.53
12.45
13. 31
14. 12
14.89
33
4.80
6.79
8.32 9.61
10.74
11.77
12. 71
13. 59
14.41
15. 19
34
4.90
6.93
8.49
9.80
10.96
12.01
12.97
13.86
14.70
15. 50
35
5.00
7.07
8.65
9.99
11.17
12.24
13. 22
14. 13
14.99
15.80
36
5.09
7.20
8.82
10. 18
11.39
12.47
13.47
14.40
15.27
16. 10
37
5. 19
7.33
8.98
10.37
11.60
12.70
13.72
14.67
15. 56
16.40
38
5.28
7.46
9. 14
10.56
11.80
12.93
13.97
14.93
15.84
16.69
39
5.37
7.60
9.30
10.74
12.01
13. 16
14.21
15. 19
16. 11
16.98
40
5.46
7.72
9.46
10.92
12. 21
13.38
14. 45
15.45 16.39
17.27
41
5. 55
7.85
9.62
11. 11
12.42
13.60
14.69
15.71 16.66
17.56
42
5.64
7.98
9.77
11.29
12.62 13.82
14.93
15.96
16.93
17.84
43
5. 73
8. 11
9.93
11.46
12.82
14.04
15. 17
16. 21
17.20
18. 13
44
5.82
8.23
10.08 11.64
13.01
14.26
15.40
16.46
17.46
18.41
45
5.91
8.36
10.23 11.82
13. 21
14.47
15.63
16. 71
17.72
18.68
46
6.00
8.48
10.38 11.99
13.41
14.69
15.86 16.96
17.99
18.96
47
6.08
8.60
10.53 12. 16
13.60
14.90
16.09 17.20
18.25
19.23
48
6. 17
8.72
10.68 12.34
13.79
15. 11
16.32 17.45 18.50
19.51
49
6.25
8.84
10.83 12. 51
13.98
15. 32
16.55
17.69
18.76
19.78
50 6.34
20.04
8.96
19.01
10.98 12.68
17.93
14. 17
16. 77
15.53
402
HYDRAULIC TABLES
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0225—Continued


S
.00055
.00060 .00065.00070 | .00075 | .00080.00085 | .00090 | .00095 | .00100
T
10
12
16
21
28
29
FIRRI 49222 2223* RRROR AHHH 3888 ***** *****
7.19
7.51
7.82
8. 11
8.40
8.67
8.94 9.20 9.45
9.69
11
7.66
8.00
8.33
8. 64
8.95
9. 24
9.52
9.80
10.07
10.33
8.12 8.48
8.83
9. 16
9.48
9.79
10.09
10.39
10.67
10.95
13
8.56
8.94
9.31
9.66
10.00
10.33
10. 65
10.95
11. 25
11.55
14
9.00
9.40
9.78
10. 15
10. 51
10.85
11. 18
11. 51
11.82
12. 13
15
9.42
9.84
10.24
10.63
11.00
11.36
11.71
12.05
12.38
12.70
9.83
10. 27
10.69
11. 10
11.48
11.86
12.23
12.58
12.93
13. 26
18
17 10. 24
10.64
10.70
11. 13
11. 55
11.96
12.35
12.73
13. 10
13.46
13.81
11. 11
11.56
12.00
12.42
12.83
13. 22
13.61
13.98
14.34
19
11.03
11. 52
11.99
12.44
12.88
13.30
13.71
14. 11
14.49
14.87
20 11.41
11.92 12.41
12.87
13.33
13.76
14. 19
14.60
15.00
15.39
11.79
12.31
12.82
13.30
13.77
14.22
14. 66
15. 08
15.49
15.90
12. 16
12.70
13.22
13. 72
14.20
14. 67
15. 12
15. 56
15.98
16.40
12.53
13.08
13.62
14. 13
14.63
15. 11
15.57
16.02
16.46
16.89
24
12.89
13. 46
14.01
14. 54
15.05
15. 54
16.02
16. 49
16.94
17.38
25
13. 24
13.83
14.40
14.94
15.46
15.97
16.46
16.94
17.40
17.86
26
13.59
14.20
14.78
15. 34
15.87
16. 39
16.90
17.39
17.87
18.33
27
13.94
14.56
15. 15
15. 73
16.28
16. 81
17.33
17.83
18.32
18.80
14. 28
14.92
15. 53
16. 11
16.68
17. 22
17.75
18. 27
18.77
19. 26
14.62
15. 27
15.89
16.49
17.07
17.63
18. 18
18.70
19. 21
19.71
30 14.95
15.62
16. 26
16. 87
17.46
18.04
18.59
19. 13
19. 65
20. 16
31
15.28
15.96
16. 62
17. 24
17.85
18.43
19.00
19. 55
20.09
20.61
32
15.61
16. 31
16.97
17.61
18.23
18.83
19. 41
19. 97
20.52
21.05
33
15.94
16. 64
17.32 17.98
18. 61
19.22
19.81
20.38
20.94
21.49
34
16. 26
16.98
17.67 18.34
18.98
19. 61
20. 21
20.79
21.36 21.92
35
16. 57
17.31 18.02
18.70
19.35
19.99
20.60 | 21. 20
21.78
22.35
36
16.89
17.64 18.36 19.05
19. 72
20.37
20.99
21.60
22. 19
22.77
37
17.20
17.96 18.70
19.40
20.08
20.74
21.38 22.00
22.60
23. 19
17.51 18.29 19.03
19.75
20.44 21.11
21.76
22.39
23.01
23.61
39 17.81
18.60 19.36
20. 10
20.80
21.48
22. 14
22.79
23.41
24.02
40
18. 12
18.92
19.69
20.44
21. 15
21.85
22.52
23. 17
23.81
24.43
41
18.42
19. 24
20.02 20.78
21. 51
22. 21
22.89
23. 56
24, 20
24.83
42
18.71
19.55 20.35
21. 11
21.85
22. 57
23.27
23.94
24.60
25. 23
43 19.01 19.86 20.67
21.45
22. 20
22.93
23.63
24. 32
24.98
25. 63
44 19.30 20.16 20.99
21.78
22.54
23. 28
24.00
24.69
25.37
26.03
45
19.60 20.47 21.30
22.11
22.88
23.63
24.36
25.07
25.75
26.42
47
46 19.88 20.77 21.62
20.17 21.07 21.93
22. 43
23. 22
23.98
24. 72
25. 44
26. 13
26.81
22.76
23.56
24.33
25.08
25.80
26. 51
27.20
48
20.46 21.37 22. 24
23.08
23.89
24. 67
25.43
26. 17
26.89
27.58
49
20.74
21.66
22.55
23.40
24. 22
25.01
25.78
26.53
27.26
27.97
50
28.35
21.02
27.63
21.96 22.85
26.89
23.72
25.35 | 26. 13
24. 55
HYDRAULIC TABLES
403
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0225—Continued

8
.0010
.0015 .0020
.0025 .0030
.0035 .0040
.0045
.0050
20
21
25
27
29
30
31
32
34
36
37
CIRRI 49209 2223* *22** ~~~** 38588
10 9.69
11.87
13. 71
15.33
16.79
18. 14
19.39
20.56
21.68
11 10.33
12
12.65
14.61
16.33
17.89
19.33
20.66
21.91
23.10
10.95
13.41
15.48
17.31
18.96
20.48
21.89
23. 22
24.48
13
11.55
14. 14
- 16.33
18.26
20.00 21.60
23.09
24.49
25.82
14
12. 13
14.86
17.16
19. 18
21.01
22.70
24. 26
25.74
27. 13
12.70
15.56
17.96
20.08
22.00
23.76
25. 41
26.95
28.40
16
13.26
16. 24
18.75
20.97
22.97
24.81
26.52
28. 13
29.65
13.81
16.91
19.53
21.83
23.92
25.83
27.62
29.29
30.88
14.34
17.57
20.29
22.68
24.85
26.84
28.69
30.43
32.08
19
14.87
18. 21
21.03
23. 51
25.76
27.82
29.74
31.55
33.25
15.39
18.85
21.76
24. 33
26.65
28.79
30.78
32.64
34. 41
15.90
19.47
22. 48
25. 14
27.53
29.74 31.79
33.72
35.55
16. 40
20.08
23. 19
25.93
28.40
30.68 32.80
34.78
36.67
16.89
20.69
23.89
26.71
29.26
31.60
33.78
35.83
37.77
24
17.38
21.28
24.57
27.48
30.10
32.51
34.75
36.86
38.86
17.86 21.87
25. 25
28. 23
30.93
33. 41
35.71
37.88
39.93
26 18.33
22.45
25.92
28.98
31.75
34.29
36. 66
38.88
40.99
18.80 23.02
26.58
29.72
32.56
35. 17
37.59
39.87
42.03
28 19.26
23.59
27.23
30.45
33.36
36.03
38.52 40.85
43.06
19.71
24. 14
27.88
31. 17
34. 15
36.88
39.43
41.82
44.08
20.16
24.70
28.52
31.88
34.93
37.72
40.33
42.78
45.09
20.61
25. 24
29.15
32.59 35.70
38.56
41. 22
43.72
46.09
21.05
25. 78
29.77
33.28
36.46
39.38
42. 10
44.66
47.07
33 21.49
26. 32
30.39
33.97
37.22
40.20
42.97
45.58
48.05
21.92
26.85
31.00
34.66
37.96
41.01
43.84 46.50
49.01
22.35
27.37
31.60
35. 33
38.71
41.81
44.69 47.40
49.97
22.77
27.89
32. 20
36.00
39. 44
42.60
45.54 48.30
50.92
23. 19
28.40
32.80
36.67
40.17
43.38
46.38
49.19
51.85
23. 61
28.91
33.38
37.32
40.89
44. 16
47. 21
50.08
52.78
24.02
29.42
33.97
37.98
41.60
44.93
48.04
50.95
53.71
40
24. 43
29.92
34.55
38.62
42. 31
45.70
48.85 51.82
54. 62
41
24.83
30.41
35. 12
39.26
43.01
46.46
49.67 52.68
55.53
42
25.23 30.91
35.69
39.90
43. 71
47.21
50.47
53.53
56.43
43
25.63 31.40
36.25
40.53
44.40
47.96 51.27
54.38
57.32
44
26.03
31.88
36.81
41. 16
45.08
48.70
52.06
55. 22
58.20
45
26. 42
32.36
37.37
41.78
45.77
49.43
52.85
56.05
59.08
46
26.81
32.84
37.92 42.39
46. 44
50.16
53.63
56.88
59.96
47
27.20
33.31 38.47 43.01
47. 11
50.89
54.40
57.70
60.82
48
27.58
49 27.97
33.78 39.01
34. 25 39.55
43.61
47.78
51.61
55. 17
58.52
61.68
44.22 48.44
52.32
55.93
59.33
62.53
50
63.38
28.35
60. 13
34.72
56.69
40.09
49.10 53.03
44.82
404
HYDRAULIC TABLES
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -12/31/2
N
n=.0225—Continued


.0055
.0060 .0065 .0070 .0075 .0080 .0085 .0090
.0095 .0100
T
10
25
PIRRI 1***2 22232 32282 SM*** *808* *****
22.73
11
24. 23
12
25.67
26.81 27.91
13
27.08
28.28 29.44
14
28.45
29.72 30.93
28.96
30.55
32.10
23.75 24.71 25.65 26.55 27.42
25.30 26.34 27.33 28.29 29.22
29.98 30.96 31.92 32.84
28.26 29.08
29.88
30.66
30.12 | 30.99
31.84
32.67
33.74
34.62
31.62 | 32.66 | 33.66 | 34.64
35.59
36.51
33.22 | 34.31
35.37
36.40
36.40
37.39
38.36
15 29.79
31. 12 | 32. 39 33.61
34.79 35.93
37.03
38. 11
39. 15
40.17
18
16 31.10
17 32.38
33.64
34.88
20 36.09
21 37.28
32.48 33.81 | 35.09 | 36.32 | 37.51
38.66
39.78
40.87
41.94
33.82
35.20 36.53 37.82 | 39.06 | 40.26
41.42
42. 56
42.56
43.67
35. 14
36.57 37.95 39.28 40.57 | 41.82
43.03
44. 21
45.36
36.43
37.91 39.34
40.73
42.06 43.36
44.61
45.84
47.03
37.69
38.94
40.53
39.23 40.71
42.06
42. 14
43.52
44.86
46. 16
47.43
48.66
43.54
44.96 46.35
47.69
49.00 50.27
38.46
39.61
40. 17
41.37
41.81
43.38 44.91
46.38 47.81
49.19
50.54 51.85
24 40.75 42.57
43.06 44.69 46.26
44.30 45.98
47.77 49.25
50.67
52.06
53.41
47.59
49.15
50.66
52. 13
53.56
54.95
26 42.99
41.88 43.74 45.53 47.24
44.90
48.90
50.51
52.06
53.57
55.04
56.47
46.73 48.50 50.20
27
44.08 46.04
47.92
49.73
51.84
51.48 53.16
53.44 54.99 56.50 57.96
54.80
56.39
57.93 59.44
45. 16
47.17
49. 10
50.95
52.74
54.47
56. 15
57.77 59.36 60.90
29
46.23
48.29
50.26
52. 16
53.99
55.76
57.47
59.14
60.76
62.34
30
47.29
49.39
51.41 53.35
55.22 57.03
58.79
60.49
62.15
63. 77
31
48.33 50.48
52.54 54.53
32 49.37 51.56
53. 67
56.44
55.70 57.65 59.54 61.37
58.29 60.09 61.83
63.52
65. 17
63.15
64.88
66.57
33 50.39
52.63
54.78
56.85 58.84
60.77
62.65
64.46
66. 23
67.95
34
51.40 53.69 55.88
57.99 60.03
62.00
63.90
65.76
67.56
69.31
35
52.41 54.74 56.97
59.12
61.20
63.21
65. 15
67.04
68.88
70.67
36 53.40 55.78 58.05
60. 24
62.36
64. 40
66.39
68.31
70.18
72.01
37 54.39
56.80
59.12
61.36
63.51
65.59
67.61
69.57 71.48
73.33
38 55.36 57.82
60. 18
62.46
64. 65
66.77 68.82 70.82
72.76
74. 65
39
56.33
58.83 61. 24
63.55
65.78
67.93
70.03
72.06
74.03
75.95
40
57.29 59.83 62.28
64.63 | 66.90 | 69.09
71. 22
73.28
75.29
77.25
41
58.24
60.83
63.31 65.70
42
59. 18
61.81
64.34 66.77
68. 01
69.11
70.24
72.40
74.50 76.54
78.53
71.38
73.57
75.70 77.78
79.80
43
60. 12
62.79
65.35 67.82 70.20 72.50
74.74
76.90 79.01
81.06
44
61.05
63.76
66.36 68.87 71.29
73.62
75.89
78.09 80.23
82.31
45 61.97
49
64.72 67.37 69.91
46 62.88 65.68
47 63.79 66.63
48 64.69 67.57
65.59 68.50
72.36
74.73
77.03
79.27 81.44
83.56
68.36 70.94 73.43
75.84
78. 17
80.44 82. 64
84.79
69.35 71.96 74.49 76.93
79.30
81.60 83.84
86.01
70.33 72.98
75.54
78.02
80.42
82.75 | 85.02
87.23
71.30 73.99
76.59
79.10
81.53
83.90 86.20
88.44
50
89.64
66.48
85.04 87.37
69.43
80.17 82.64
72.27 74.99
77.63
HYDRAULIC TABLES
405
Table 30.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v
r2/31/2
n
n=.0225—Continued

.01
.02
.03
.04
.05 .06
.07
.08
.09
.10
PERRI ==== 272**
22222 AF*** ****
10
30.66 43.35
53. 10
11
32.67
46.20
56.58
61.31 68.55 75.09
65.33 73.04 80.02)
86. 71
12
34.62 48.96
59.96
69.23
77.41 84.79
13
36.51 51.64
63.24
73.03
81.65
14
38.36
54.25 66.45
76.73
85.78
101.50 108. 51
81.11
86.43 92.39 98.00 103. 30
91.59 97.91 103.85 109.47
89.44 96.61 103.28 109. 54 115.47
93.97
115.09| 121.32
91.97
96.94
15
40.17
56.81 69.58
80.34
89.82 98.39 106.28
113.62
120. 51 127.03
16
41.94
59.31
72.63 83.87
93.77
93.77 102.72 110. 95
118. 61
125.81
132. 61
17
43. 67
61.75
75.63
87.33
97.64 106.96 115. 53
123. 50
131.00
138.08
18 45. 36
64. 15
78.57
90.72 101.43 111.11
120. 01
128.30
136. 08
143. 44
19
47.03
66.50
81.45
94.05 105. 15
94.05 105. 15
115. 19
124. 42
133. 01
141.08 148.71
20
48.66
68.82 84.28 97.32 108.81
119. 20
128.75
137.64 145.99
153. 88
21
50. 27
71.09
87.07 100.54 112. 41
123. 14
133.00
142. 19
150.81 158.97
51.85
73.33
89.81 103.71 115.95
127.02
137. 19
146.67
155. 56
163.98
23
53. 41
75.54
92.52
92. 52 106.83 119. 44
130. 84
141. 32
151.08
160. 24
168.91
24
54.95
77.71
95.18 109.90 122.87
134. 60
145. 39
155. 43
164. 85
173.77
25
56. 47
79.86 97.80 112.93 126. 26
138. 32
149. 40
159.71
169.40 178. 56
26
57.96
81.97 100.40 115.93 129. 61
141.98
153. 36
163.94 173.89 183.30
27 59.44
28
84.06 102.95 118.88 132. 91
60.90 86.12 105.48 121.80 136. 17
29 62.34 88.16 107.98 124.68 139.40
145. 60
157.26
168.12 178.32 187.97
149. 17
152.70
161. 12 172.25 182.70 192.58
164.94 176.32 187.02 197.14
30
63.77
90.18 110.44| 127.53
142. 58
156. 19
168.71
180.36
191.30 201.64
31
65. 17
92.17 112.89 130. 35
145. 73
159. 64
172. 44
184. 34
195. 52 206.10
32
66. 57
94.14 115.30 133. 14
148.85
163.06
176.12
188. 28
199.71| 210. 51
33
67.95
96.09 117.69 135.90
151.94
166. 44|
179. 77|
192.19
203.85 214.87
69.31
98.03 120.06 138.63 154.99
169. 78
183.39
196.05 207.94 219.19
35
70.67
158. 02
72.01
73.33
74. 65
75.95
199.88 212.00 223.47
203. 66 216.02 227.70
207.42| 220.00 231.90
99.94 122.40 141.33
101.83 124. 72 144. 01
103.71 127.02 146.67
105.57 129. 30| 149.30 166.92 182.85 197.50 211.14 223.95 236.06
107.41 131.55 151.91 169.84 186.05 200.95 214.83 227.86 240. 19
186. 97
161.01 176. 38 190. 51
163.98| 179.63| 194.02
173.10
77.25 109.24 133. 79
154. 49
172.73
189. 21
204. 37 218.48
231.74 244.27
78.53
111.06 136. 01
157.06
175. 59
192. 35
207. 77 222.11
235. 58 248.33
42
79.80
112.85 138.22
159.60
178. 44]
195. 47|
211. 13| 225.71
239. 40| 252.35
43
81.06
114. 64
140. 40
162.12
181.26
198.56
44
82.31
116. 41
142. 57
164. 63
184. 06
201. 63
214. 47 229.28 243.18 256.34
217.78 232.82 246.94 260.30
45
83.56
46 84.79
47 86.01
48 87.23
118.17 144. 72 167.11 186.84 204. 67 221.07 236. 33 250.67 264. 23
49 88.44
119.91| 146.86 169.58 189.59 207.69|
121.64 148.98 172.03 192.33 210. 69
123.36 151.09] 174. 46 195.05 213. 67
125.07 153.18 176.87 197.75 216.63
224.33| 239.82 254.37 268.13
227.57
243. 28 258.04 272.00
230. 79
246. 72
261.69 275.84
233.98
250.14
265. 31 279.66
50
126.76 155.25 179.27 200.43 219.56 237. 15 253. 53 268.91 283. 45
89.64
406
HYDRAULIC TABLES
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.025


.00005
.00010.00015 | |
.00015 .00020.00025 .00030.00035.00040.00045.00050
T
0.2
0.14
0.20 0.25 0.29
0.32
0.35
0.38
0.41 0.43
0.45
0.4
.23
.32
.40 .46
51
.56
.60 .65
.68
.72
0.6
.30
.42
.52
.60
.67
.73
.79
.85
.90
.95
0.8
.36
.51
.63
.72
.81
.89
.96
1.02
1.09
1. 15
TLİLİLİ
1.0
1.2
1.4
1.6
1.8
−2+∞ GO
.42
59
.73
.84
.94
1.03
1. 11
1. 19
1. 26
1.33
.47
.67
.82
.95
1.06
1. 16
1.26
1.34
1.42
1.50
53
.74
.91
1.05
1. 18
1.29
1.39
1.49
1. 58
1.66
.57
.81
1.00
1. 15
1.29
1. 41
1.52
1.63
1.72
1.82
. 62
.88
1.08
1.24
1.39
1.52
1.65
1.76
1.87
1.97
2.0
.67
.94
1. 16
1.33
1.49
1.63
1.77
1.89
2.00
2. 11
2.2
.71
1.01
1.23
1.42
1.59
1.74
1.88
2.01
2. 13
2. 25
2.4
.75
1.07
1.30
1.51 1.68
1. 85
1.99
2. 13
2. 26
2.38
2.6
.79
1. 12
1.38
1. 59
1.78
1.95
2.10
2.25
2.38
2. 51
2.8
.83
1. 18
1.45
1.67
1.87
2.05
2.21
2.36
2.50
2.64
3.0
.87
1. 24
1.51
1.75
1.95
2. 14
2.31
2.47
2.62
2.76
3.2
.91
1.29
1.58
1.83
2.04
2. 24
2.41
2. 58
2.74
2.89
3.4
.95
1.34
1.65
1.90
2. 13
2. 33
2. 51
2.69
2.85
3. 01
3.6
.99
1.40
1.71
1.97
2. 21
2.42
2.61
2. 79
2.96
3. 12
3.8
1.02
1.45
1.77
2.05
2.29
2. 51
2.71
2.89
3.07
3. 24
4.0
1.06
1.50
1.83
2. 12
2.37
2.59
2.80
3.00
3.18
3.35
4.2
1.09
1.55
1.90
2. 19
2.45
2. 68
2.89
3.09
3.28
3.46
4.4
1. 13
1.60
1.95
2. 26
2.52
2.76
2.99
3. 19
3.39
3.57
4. 6
1. 16
1.64
2. 01
2. 33
2.60
2.85
3.08
3.29
3.49
3.68
4.8
1. 20
1. 69
2.07
2.39
2.67
2.93
3. 16
3.38
3.59
3.78
5.0
1. 23
1.74
2. 13
2.46
2.75
3. 01
3. 25
3. 48
3.69
3.89
5.2
1.26
1.78
2. 19
2.52
2.82
3.09
3. 34
3.57
3.78
3.99
5.4
1.29
1.83
2. 24
2.59
2.89
3. 17
3.42
3.66
3.88
4.09
5.6
1.33
1.87
2.30
2.65
2.96
3. 25
3. 51
3.75
3.98
4. 19
5.8
1.36
1.92
2.35
2.71
3.03
3. 32
3.59
3.84
4.07
4.29
6.0
1.39
1.96
2.40
2.78
3.10
3.40
3.67
3.93
4. 16
4.39
6.2 1.42
2.01
2.46 2.84
3. 17
3.47
3.75
4.01
4. 26
4.49
6.4
1.45
2.05
2.51 2.90
3. 24
3.55
3.83
4. 10
4.35
4. 58
6.6
1.48
2.09
2.56 2.96
3.31
3.62
3.91
4. 18
4. 44
4. 68
6.8
1. 51
2. 13
2.61 3.02
3.37
3.70
3.99
4. 27
4. 53
4.77
7.0
1. 54
2. 18
2.66
3.08
3.44
3.77
4.07
4.35
4. 61
4.86
7.5
1.61
2. 28
2.79
3. 22
3.60
3.94
4. 26
4. 55
4.83
5.09
8.0
1.68
2.38
2.91
3.36
3.76
4. 12
4.45
4.76
5. 04
5.32
8.5
1.75
2.48
3.03
3.50
3.91
4. 29
4.63
4.95
5. 25
5. 54
9.0 1.82
2.57
3. 15
3.64
4.07
4.45
4.81
5. 14
5.46
5.75
9.5
5.96
1.89
5.66
2.67
5.33
3.27
4.99
3.77
4.62
4. 22
HYDRAULIC TABLES
407
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.025—Continued



.00065.00070.00075.00080.00085 .00090.00095 .00100
.00055
.00060.00065
0080
| |
00090
T
0.2
0.48
0.50
0.52
0.54
0.56 0.57
0.59 0.61 0.63
0.64
0.4
.76
.79
0.6
.99
1.04
1.08 1.12
.82 .85 .88
.91
.94
.97
.99
1.02
1.16
1.20
1.23
1.27
1.30
1.34
0.8
1.20
1.25
1.31
1.36
1.40
1.45
1.49
1. 54
1.58
1.62
1.0
1.2
1.4
1.6
1.8
− 2 - CD OO
1.39
1.46
1.52
1.57
1.63
1.68
1.73
1.78
1.83
1.88
1.57 1.64
1.71
1.78
1.84
1.90
1.96
2.01
2.07
2.12
1.74
1.82
1.90
1.97
2.04
2.10
2. 17
2. 23
2. 29
2.35
1.91
1.99
2.07
2.15
2. 23
2.30
2.37
2.44
2.51
2.57
2.06
2. 15
2. 24
2.33
2. 41
2.49
2. 56
2.64
2.71
2.78
2.0
2. 21
2.31
2.41
2.50
2.58
2.67
2.75
2.83
2.91
2.98
2.2
2.36
2.46
2.56
2.66
2.75
2.84
2.93
3.02
3.10
3. 18
2.4
2,50
2.61 2.72
2.82
2.92
3.01
3.11
3. 20
3.28
3.37
2.6
2,64
2.75
2.87
2.97
3.08
3. 18
3. 28
3.37
3.46
3.55
2.8
2.77
2.89
3.01
3. 12
3. 23
3.34
3.44
3.54
3. 64
3.73
3.0
2.90
3.03
3. 15
3.27
3.39
3.50
3.60
3.71
3.81
3.91
3.2 3.03
3.16
3.29
3.42
3.53
3.65
3.76
3.87
3.98
4.08
3.4 3.15
3.29 3.43
3.56 3.68
3.80
3.92
4.03
4. 14
4. 25
3.6
3.27
3.42
3.56 3.69
3.82
3.95
4.07
4. 19
4.30
4. 42
3.8 3.39
3.55
3.69 3.83
3.96
4.09
4.22
4.34
4.46
4.58
4.0
3:51
3.67
3.82
3.96
4. 10
4. 24
4.37
4.49
4. 62
4.74
4.2 3.63
3.79
3.94
4.09
4. 24
4.38
4. 51
4.64
4.77
4.89
4.4 3.74
3.91
4.07
4. 22
4. 37
4. 51
4.65
4.79
4.92
5.05
4.6 3.86
4.03
4. 19
4.35
4.50
4.65
4.79
4.93
5.07
5.20
4.8
3.97
4. 14
4.31
4.47 4.63
4.78
4.93
5.07
5. 21
5.35
5.0
4.08
4. 26
4.43
4.60
4.76
4.92
5.07
5.21
5.36
5.50
5.2
4. 18
4.37
4. 55
4.72
4.89
5.05
5.20
5.35 5.50
5.64
5.4
4. 29
4. 48
4.66
4.84
5.01
5. 17
5.33
5. 49
5.64
5.79
5.6
4. 40
4.59
4.78
4.96
5. 13
5.30
5.46
5.62
5.78
5.93
5.8
4.50
4.70
4.89
5.08
5.25
5. 43
5.59
5.76
5.91
6.07
6.0
4.60
4.81
5.00
5. 19
5.37
5.55
5.72
5.89
6.05
6. 21
6.2
4.70
4. 91
5. 11
5. 31
5.49
5.67
5.85
6.02
6. 18
6.34
6.4
4.81
5.02
5.22
5.42
5.61
5.80
5.97
6. 15
6.32
6.48
6.6
4.90
5. 12
5.33
5. 53
5.73
5.92
6. 10
6.27
6. 45
6.61
6.8
5.00
5. 23
5.44
5.64
5.84
6.03
6.22
6.40
6.58
6.75
7.0
5.10
5.33
5.55 5.75
5.96
6. 15
6. 34
6.53
6.70
6.88
7.5
5. 34
5.58 5.81 6.03
6. 24
6. 44
6. 64
6.83
7.02
7.20
8.0
5.58
5.82 6.06 6.29
6.51
6.72
6.93
7.13 7.33
7.52
8.5 5.81 6.06
9.0 6.03 6.30
6.31 6.55 6.78
6.56 6.80 7.04
7.00 7.22
7.43 7.63
7.83
7.27 7.50
7.72
7.93
8. 13
9.5
8.43
6. 25
8.22
6.53
8.00
6.80
7.77
7.05
7.54
7.30
408
HYDRAULIC TABLES
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.025—Continued

8
.0010
.0015
.0020
.0025
.0030
.0035
.0040 .0045
.0050
0.2
0.64
0.79
0.91
1.02
1. 11
1.20
1.29
1.36
1.44
0.4
1.02
1.25
1,44
1.61
1.77
1.91
2.04
2.16
2.28
0.6
1.34
1.64
1.89
2. 11
2.32
2.50
2.67
2.84
2.99
0.8
1.62
1.98
2. 29
2.56
2.81
3.03
3.24
3.44
3.62
HHHHH
0246 00
1. 0
1.88
2.30
2.66
2.97
3.26
3.52
3.76
3.99
4.20
1.2
2.12
2.60
3.00
3.36
3.68
3.97
4. 25
4.50
4.75
1.4
1.6
1.8
2.35
2.88
3.33
3.72
4. 07
4.40
4.70
4.99
5. 26
2.57
3. 15
3.64
4. 07
4. 45
4. 81
5. 14
5.45
5.75
2.78
3.41
3.93
4.40
4.82
5.20
5.56
5.90
6. 22
2.0
2.98
3.65
4. 22
4.72
5. 17
5.58
5.97
6. 33
6.67
2.2
3. 18
3.89
4.50
5.03
5.51
5.95
6.36
6.74
7.11
2.4
3.37
4. 13
4.77
5. 33
5.84
6.30
6.74
7.15
7.53
2.6
3.55
4.35
5.03
5. 62
6. 16
6.65
7.11
7.54
7.95
2.8
3.73
4.57
5. 28
5.90
6.47
6.99
7.47
7.92
8.35
3.0
3.91
4.79
5.53
6. 18
6.77
7.31
7.82
8.29
8.74
3.2
4.08
5.00
5.77
6.45
7.07
7.64
8. 16
8.66
9. 13
3. 4
4.25
5. 21
6.01
6.72
7.36
7.95
8.50
9.02
9.50
3.6
4.42
5.41
6.24
6.98
7.65
8.26
8.83
9.37
9.87
3.8
4.58
5. 61
6.47
7. 24
7.93
8.56
9.15
9.71
10. 23
4.0
4.74
5.80
6.70
7.49
8.20
8.86
9.47
10.05
10.59
4.2 4.89
5.99
6.92
7.74 8.47
9.15
9.79
10.38
10.94
4.4
5.05
6. 18
7.14
7.98
8.74
9.44
10.09
10.71
11.29
4.6
5.20
6.37
7.35
8.22
9.00
9.73
10.40
11.03
11.63
4.8
5.35
6.55
7.56
8.46
9.26
10.01
10.70
11. 35
11.96
5.0
5.50 6.73
7.77
8.69
9.52 10.28
10.99
11.66
12.29
5.2
5.64 6.91
7.98
5.4 5.79
7.09
8. 18
9.15
5. 6
5.93
7.26
8.38
9.37
8.92 9.77
10.02
10.27 11.09
10.55
11. 28
11.97
12.62
10.82
11.57
12. 27
12.94
11.85
12.57
13.25
5.8
6.07
7.43
8.58
9.59 10.51
11.35
12. 14
12.87
13.57
6.0
6. 21
7.60
8.78
9.81
10.75
11.61
12.41
13. 17
13.88
6. 2
6.34
7.77
8.97
10.03
10.99
11.87
12.69
13. 46
14. 18
6. 4
6.48
7.94
9.16
10. 24
11. 22
12. 12
12.96
13. 74
14.49
6.6 6.61
8.10 9.35
10.46
11.46
12.37
13.23
14.03
14.79
6.8
6.75
8.26
9.54
10.67
11.69
12. 62
13.49
14.31
15.09
7.0
6.88
8.42
9.73
10.88
11.91
12.87
13.76
14.59
15.38
7.5
7.20
8.82
10. 19
11.39
12.47 13.47
14.40
15. 28
16.10
8.0 7.52
9.21
10.63
11.89 13.02
14.07
15.04
15.95
16.81
8.5 7.83
9.0 8.13 9.96 11.50
9.59 11.07
12.38 13.56
14.65
15.66
16. 61
17.51
12.86
14.09
15. 22
16.27
17.25
18. 19
9.5
18.85
8.43 10.33
17.89
11.92
16.86
13.33
15.77
14.60
HYDRAULIC TABLES
409
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.025-Continued

8
.0055
.0060
.0065
.0070
.0075 .0080 .0085 .0090 .0095
.0100
0.2
1.51
1.57
1. 64
1.70
1.76
1.82
1.87
1.93
1.98
2.03
0.4
2.39
2.50
2.60
2.70
2.79
2.89 2.98
3.06
3. 15
3. 23
0.6
3. 14
3.28
3.41
3. 54
3.66
3.78 3.90
4.01
4.12
4. 23
0.8
3.80
3.97
4. 13
4.29
4.44
4.58
4.72
4.86
4.99
5.12
1.0
4. 41
4.60
4.79
4.97
5. 15
5.32
5. 48
5.64
5.79
5.94
1.2
4 98
5. 20
5. 41
5. 62
5.81
6.00
6. 19
6.37
6. 54
6. 71
1.4
5. 52
5.76
6.00
6. 22
6. 44
6.65
6.86
7.06
7.25
7.44
1.6
6. 03
6.30
6. 56
6.80
7.04
7.27
7.50
7.71
7.93
8. 13
1.8
6. 52
6.81
7.09
7.36
7.62
7.87
8. 11
8.34
8.57
་
8.80
2.0
7.00
7.31
7.61
7.89
8. 17
8.44
8.70
8.95
9.20
9.44
2.2
7.46
7.79
8. 11
8. 41
8.71 8.99
9.27
9.54
9.80
10.05
2.4
7.90
8.25
8.59
8.91
9.23❘ 9.53
9.82
10.11
10.39
10.65
2.6
8.34
8.71
9.06 9.40
9.73 10.05
10.36
10.66
10.95
11. 24
2.8
8.76
9. 15
9.52
9.88
10.23
10.56
10.89
11. 20
11.51
11.81
3.0
9. 17
9.58
9.97
10.34
10. 71
11.06
11.40
11.73
12.05
12.36
3.2
9.57
10.00
10. 41
10.80
11. 18
11.54
11.90
12.25
12. 58
12.91
3.4 9.97
10.41
10,
10,84
11. 24
11. 64
12.02
12.39
12.75
13. 10
13. 44
3.6
10.35
10.81
11. 26
11.68
12.09
12.49 12.87
13. 25
13. 61
13.96
3.8
10.73
11. 21
11. 67
12. 11
12. 54
12.95 | 13. 34
13.73
14. 11
14. 47
4.0
11. 11
11.60
12.08
12.53
12.97
13.40
13.81
14. 21
14. 60
14.98
4.2
11.48
11.99
12. 47
12.95
13.40
13.84
14. 27
14.68
15.08
15. 47
4.4
11.84
12. 36
12.87
13. 35
13.82
14. 28
14.71
15. 14
15. 56
15.96
4.6
12. 19
12.73
13. 25
13.76
14. 24
14.70
15. 16
15.60
16.02
16. 44
4.8
12.54
13.10
13. 64
14. 15
14.65
15. 13
15.59
16.05
16. 49
16.91
5.0 12.89
13.46
14.01
14.54
15.05
15. 55
16.02
16.49 16.94
17.38
5.2 13.23
13.82
14.38
14.93
15.45
15.96
16.45
16.93 17.39
17.84
5.4
13.57
14. 17
14.75
15. 31
15. 84
16.36
16.87 17.36
17.83
18.30
5.6
13.90
14. 52
15. 11
15.68
16.23
16. 77
17.28
17.78
18. 27
18. 74
5.8
14. 23
14. 86
15.47
16.05 16.62
17. 16
17.69
18.20
18.70
19. 19
6.0
14. 56
15. 20
15.82
16.42 17.00 17.55
18.09
18.62
19. 13
19. 63
6.2
14.88
15. 54
16. 17
16.78
17.37 17.94
18.49
19.03
19.55
20.06
6.4
15. 20
15.87
16. 52
17. 14
17.74
18.33
18.89
19.44 19.97
20.49
6.6
15. 51
16. 20
16.86
17.50
18. 11
18.71
19. 28
19.84
20.38
20.91
6.8
15.82
16. 53
17.20
17.85
18. 48
19.08
19.67
20. 24
20.79
21.33
7.0
16. 13
16.85
17.54
18. 20
18. 84
19.45
20.05
20.63
21.20
21.75
7.5
16.89
17.64
18.36
19.05
19.72
20.37 21.00
21.61
22.20
22.77
8.0
17.63
18.42
19. 17
19.89
20.59
21. 27 | 21. 92
22.56
23. 17
23.78
8.5 18.36
19. 18
19.96
20.71
21.44
22. 14
22.82
23.49
24. 13
24. 76
9.0 19.07
19.92
20.73
21. 52
22.27
23.00
23.71 | 24.40
25.07
25.72
9.5 19.77
20.65 21.50 22.31 23.09 23.85
24. 58 25. 29
25.99
26.66
563189°-44-
-27
410
HYDRAULIC TABLES
T
Table 31.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.025—Continued

co
.01
.02
.03 .04
.05
.06
.07
.08
.09
.10
0.2
2.03
2.87 3.52 4.07
4.55
4.98
5.38
5.75
6. 10
6. 43
0.4
3. 23
4.56
5.59
6.45
7.22 7.90
8.54
9. 13
9.68
10. 20
0.6
4. 23
5.98
7.32
8.46 9.46
10.36
11. 19
11.96
12.69
13.37
0.8
5. 12
7.24
8.87
10. 24
11.45
12.55
13.55
14.49
15.37
16.20
1.0
5.94
8.41
10.30
11.89
13.29
14.56
15.73
16.81
17.83
18.80
1.2
6.71
9.49
11. 63
13. 42
15.01
16. 44
17.76
18.99
20.14
21. 23
1.4
7.44
10.52
12.88
14.88
16.63
18.22
19.68 21.04
22.32
23.52
1.6
8. 13
11.50
14.08
16.26
18. 18
19.92
21.51 23.00
24.39
25.71
1.8
8.80
12. 44
15. 23
17.59
19.67
21.54
23.27
24.88 26.39
27.81
2.0
9.44
13. 34
16.34
18.87
21.10
23.11
24.96 26.69 28.31
29.84
2.2
10.05
14.22
17.41
20.11
22.48
24. 63
26.60
28.44
30.16
31.80
2.4
10.65
15.07
18.45 21.31
23.83
26.10
28.19
30. 14
31.96
33.69
2.6
11. 24
15.89 19.47
22.48
25. 13
27.53
29.74
31.79
33.72
35.54
2.8
11.81
16.70 20.45
23.62
26.40
28.92 31.24
33.40
35.42
37.34
3.0 12.36
17.49 21.42 24.73
27.65
30.29
32.71
34.97 37.09
39.10
3.2
12.91
18.25
22.36
25.82
28.86
31.62
34. 15
36.51 38.72
40.82
3.4 13.44
19. 01
23. 28
26.88
30.05
32.92
35. 56
38.01 40.32
42.50
3.6
13.96
19.75
24. 18
27.92
31.22 34.20
36.94
39.49
41.89
44. 15
3.8
14.47
20.47
25.07
28.95
32. 37 | 35.45
38.30
40.94 43.42
45.77
4.0
14.98
21. 18
25.94
29.96
33.49 36. 69
39.63
42.36 44.93
47.36
4.2
15.47
21.88
26.80
30.95
34.60
37.90
40.94
43.76
46.42
48.93
4. 4
15.96
22.57 27.64 31.92
35.69
39.10
42.23
45. 14
47.88
50.47
4.6
16. 44
23.25 28.48 32.88
36.76
40.27
43.50
46.50
49.32
51.99
4.8
16.91
23.92
29.30 | 33.83
37.82
41.43
44. 75
47.84
50.74
53.49
5.0
17.38
24. 58
30. 10
34.76
38.86
42.57
45.98
49.16
52.14
54.96
5.2 17.84
25.23
30.90
35.68
5.4 18.30
25.87 31.69
36.59
5.6
18.74
26.51
32.47
37. 49
5.8
19. 19
27.14
33. 23
38.38
39.89 43.70 47.20 50.46
40.91 44.81 48.41
41.91 45.91
42.91 47.00
53.52 56.42
51.75 54.89
57.86
49.59
53.02 56.23
59.27
50.77 54.27
57.56
60.68
6.0 19.63
27.76 33.99
39.25
43.89 | 48.08
51.93
55.51
58.88
62.06
6.2 20.06
28.37 34.75
40.12
44.86
49. 14
53.07
56.74
60. 18
63.44
6.4 20.49
28.98
35.49 40.98
45.82
50. 19
54. 21
57.95
61. 47
64.79
6.6 20.91
29.58
36. 22
41.83 46.77
51.23
55. 33
59. 15
62.74
66. 14
6.8 21.33
30. 17
36.95 | 42.67 | 47.71
52.26
56.45
60.34
64.00
67.47
7.0 21.75
30.76
37.67 43.50 48.64
53.28
57.55
61.52
65. 25
68.78
7.5 22.77
8.0 23.78
32. 21
39.45 45.55
50.93
55.79
60.26 64.42
68.32
72.02
33.62
41. 18
47.55
53. 16
58. 24
62.91 67.25 71.33
75.19
8.5 24.76
35.01
42.88
49.51
55.36
60.64
65.50 70.02 74.27
78.29
9.0 25.72
36.37 44.55
51.44
57.51
63.00
68.04 72.74 77.15
81.33
9.5
84.31
26.66
70.54 75.41 79.99
37.71 46. 18
59.62 | 65.31
53.32
HYDRAULIC TABLES
411
Table 31.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
2/31/2
n=.025—Continued

.00005 .00010
.00015 .00020.00025.00030.00035.00040.00045.00050
T
AIRRI 49202
10
1.95
2.76
3.38
3.90
4.36
4.78
5. 16
5.52
5.85
6. 17
11
2.08
2.94
3.60
4. 16
4.65
5.09
5.50
5.88
6. 24
6. 57
12
2.20
3. 12
3.82
4.41
4.93
5.40
5.83
6. 23
6.61
6.97
13
2.32
3.29
4.02
4.65
5.20
5.69
6. 15
6. 57
6.97
7.35
14
2.44
3.45
4.23
4.88
5.46
5.98
6.46
6.91
7.32
7.72
15
2.56
3.62
4. 43
5. 11
5.72
6.26
6.76
7.23
7.67
8.08
16
2.67
3.77
4.62
5. 34
5.97
6.54 7.06
7.55
8.01
8.44
17
2.78
3.93
4.81
5. 56
6. 21
6.81
7.35
7.86
8.34
8.79
18
2.89
4.08
5.00
5.77
6.46
7.07 7.64
8. 17
8.66
9. 13
19
2.99
4. 23
5. 18
5.99
6.69
7.33
7.92
8.46
8.98
9.46
22222
20
3.10
4.38
5.36
6. 19
6.92
7.59
8. 19
8.76
9.29
9.79
21
3.20
4. 52
5.54
6.40
7.15
7.84
8.46
9.05
9.60
10. 12
22
3.30
4.67
5.72 6.60
7.38 8.08
8.73 9.33
9.90
10.44
23
3.40
4. 81
5.89
6.80
7.60 8.33
8.99
9.61
10.20
10.75
24
3.50
4.95
6.06
6.99
7.82
8.57
9.25
9.89
10.49
11.06
22222 8≈≈** *8-8
25
3.59
5.08
6. 22
7.19
8.04 8.80
9.51
10. 16
10.78
11.36
26 3.69
5. 22
6.39
27
3.78
5.35
7.38
6.55 7.57 8.46
28
3.88
5.48
6.71 7.75
8.67
8.25 9.04
9.27
9.49 10.25 10.96
9.76
10.43
11.07
11.66
10.01
10.70
11.35
11.96
11.63
12. 26
29
3.97
5.61
6.87 7.93
8.87
9.72
10.50
11. 22
11.90
12.55
30
4.06
5.74
7.03
8. 12
9.07
9.94
10.74
11.48
12.17
12.83
4. 15
5.87
7.18
8.30
9.27
10.16
10.97
11.73
12.44
13. 12
33
4. 24
5.99
7.34 8.47 9.47
10.38
11. 21
11.98
12. 71
13. 40
4.32
6. 12
7.49 8.65
9.67
10.59
11. 44
12. 23
12.97
13.67
34
4. 41
6.24
7.64 8.82 9.86
10.81
11.67
12.48
13. 23
13.95
35
4.50
6.36 7.79
8.99
10.06
11.02
11.90
12.72
13.49
14.22
4.58
6.48 7.94
9. 16
10.25
11. 22
12. 12
12.96
13.75
14.49
37
4.67 6.60
8.08
9.33
10.44
11.43
12.35
13.20
14.00
14.76
38
4.75 6.72
8. 23
9.50
10.62
11.64
12.57
13. 44
14.25
15.02
39
4.83
6.84
8.37
9.67
10.81
11.84 12.79
13.67
14.50
15. 29
40
4.92
6.95 8.51
9.83
10.99
12.04
13.01
13.90
14.75
15. 55
41
5.00
7.07 8.66
10.00
11. 17
12. 24
13. 22
14. 14
14.99
15.80
42
5.08
7.18
8.80
10. 16
11.36
12. 44
13.44
14.36
15. 24
16.06
43
5. 16
7.30
8.94
10.32
11.54
12.64
13.65 14.59
15.48
16.31
44
5. 24
7.41
9.07 10.48 11.71
12.83
13.86 14.82
15. 72
16. 57
45
5.32
7.52
9.21
10.63 11.89
13.03
14.07 15.04
15.95
16.82
46
5.40
7.63 9.35 10.79
12.07
13. 22
14.28
15.26
16. 19
17.06
47
5.47
7.74 9.48
10.95
12. 24
13.41
14.48
15.48
16.42
17.31
48
5. 55
7.85
9.62 11. 10
12.41
13.60 14.69
15.70
16. 65
17.55
49
5.63
7.96
9.75
11.26
12.58
13.79 14.89
15.92
16.88
17.80
50
18.04
5.70
17.11
8.07
13.97 15.09 16. 13
9.88 11. 41
12.76
412
HYDRAULIC TABLES
Table 31.—Velocity of water, v, in feet per second, based on
Manning's formula v= r2/31/2
1.486
N
n=.025
.025-Continued

S
9070
.00055 .00060.00065 | .00070 | .00075 | .00080 | .00085 | .00090.00095 | .00100
0090
T
11
12
18
CERIE 492-2
10
6.47 6.76
6.89 7.20
7.03 7.30 7.56 7.80 8.04 8.28
8.50
8.72
7.50
7.78
8.05
8.32
8.57
8.82
9.06
9.30
7.31
7.63
7.94
8.24
8.53
8.81 9.08
9.35
9.60
9.85
13
7.71
8.05
8.38
8.69
9.00
9.30 9.58
9.86 10.13
10.39
14
8.10
8.46
8.80
9.14
9.46
9.77
10.07
10.36 10.64
10.92
15
8.48
8.86
9.22
9.57
9.90
10.23
10. 54
10.85
11.14
11.43
16
8.85
9.24 9.62
9.99 10.34
10.68
11.00
11.32 11.63
11.94
17
9.22
9.63
10.02
10.40 | 10.76
11. 12
11.46
11.79 12.11
12.43
9.57
10.00
10. 41
10.80
11. 18
11.55
11.90
12.25 12.58
12.91
19 9.93
10.37
10.79
11. 20
11. 59
11.97
12. 34
12.70 13.04
13.38
40
43
27224 22RRAR AMA** ***** ***** ****
20
10.27
10.73
11.17
11. 59
11.99
12.39
12.77
13.14
13. 50
13.85
21
10. 61
11.08
11.53
11.97
12. 39
12.80
13. 19
13.57
13.95
14. 31
10.94
11.43
11.90
12.35
12.78
13. 20
13.61 14.00
14. 38
14.76
23
11.27
11.78
12. 26
12.72
13. 17
13.60
14.02
14.42
14.82
15.20
11.60
12.11
12.61
13.08
13. 54
13.99
14.42
14.84
15. 24
15. 64
25
11.92
12. 45
12.96
13.45
13.92
14.37
14.82
15. 25
15.66
16.07
26
12, 23
12. 78
13.30
13.80
14. 29
14.76
15. 21
15.65
16.08
16.50
27
12.55
13.10
13. 64
14. 15
14. 65
15. 13
15.60
16.05
16. 49
16.92
28
12.85
13.43
13.97
14.50
15.01
15.50
15.98
16.44
16.89
17.33
29
13. 16
13.74
14.30
14.84
15. 37
15.87
16.36
16.83
17. 29
17.74
30
13. 46
14.06
14. 63
15. 18
15. 72
16.23
16.73
17.22
17.69
18.15
13.76
14.37
14.95
15.52
16.06
16.59 17.10
17.60
18.08
18.55
32
14.05
14.68
15.27
15.85
16.41 16.95 17.47
17.97
18. 47
18.95
33
14. 34
14.98
15.59
16. 18
16.75
17.30
17.83
18.35
18. 85
19.34
34
14. 63
15.28 15.90
16.50
17.08 17.64
18. 19
18.71
19. 23
19.73
35
36❘ 15.20
14.92
15. 58 16.21
16.83 17.42
17.99
18. 54
19.08
19.60
20.11
15.87
16.52 17.15 17.75
18.33
18.89
19.44 19.97
20.49
15. 48
16. 17
16.83 17.46 18.07
18.67
19. 24
19.80 20.34
20.87
38
15.76
16.46
17.13
17.78 18.40
19.00
19.59
20.16 20.71
21.25
39 16.03 16.74 17.43 18.09
18.72
19.33
19.93
20.51 21.07
21.62
41
16.30 17.03 17.72 18.39
16.57 17.31 18.02 18.70
19.04 19.66
20.27
20.86
21.43
21.98
19.36
19.99
20.61 21.20
21.78
22.35
42
16.84
17.59 18.31
17.11 17.87 18.60 19.30
19.00
19. 67
20.31
20.94 21.55
22. 14
22.71
19.98
20.63
21.27
21.89
22. 49
23.07
44 17.37 18.15 18.89 19.60 20.29
20.95 21.60
22.22
22.83
23.43
45 17.64 18.42 19. 17
19.90 20.59
21.27
21.92
22.56
23. 18
23.78
46
17.90
18.69
19.46
20.19 20.90
21.58
22. 25
22.89 23.52
24. 13
47
18.15
18.96 19.74 20.48 21.20
21.90
22.57
23. 22 | 23.86
24.48
.
48
49
18. 41
18. 67
19.23 20.02 20.77 21.50 22.21
19.50 20.29 21.06 21.80
22.89
23.55 | 24. 20
24.83
22.51
23. 21
23.88
24. 53
25. 17
50 18.92 19.76
25.51
20.57 21.34
23.52 | 24.20 24.86
22.09
22.82
HYDRAULIC TABLES
413
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.025- -Continued

Co
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045
.0050
T
21
25
26
27
28
29
30
31
32
PERII B9=29 2723* ***** *-***
10
8.72
10.69
12. 34
13.79
15. 11
16. 32
17.45
18.51 19.51
11
9.30
11.39
13. 15
14.70
16. 10
17.39
18.59
19.72
20.79
12
9.85
12.07
13.93
15.58
17.06
18.43
19. 70
20.90
22.03
13
10.39
12.73
14.70
16.43
18.00
19.44
20.78
22.05
23. 24
14
10.92
13.37
15.44
17.26
18.91
20.43
21.84
23. 16
24. 41
15
11.43
14.00
16. 17
18.08
19.80
21.39
22.86
24.-25
25.56
16
11.94
14.62
16.88
18.87 20.67
22.33
23.87
25. 32
26.69
17
12. 43
15.22
17.57
19.65
21,52
23.25
24.85
26.36
27.79
18
12.91
15.81
18.26
20.41
22.36
24. 15
25.82
27.39
28.87
19
13.38
16.39
18.93
21. 16
23. 18
25.04
26.77
28.39
29.93
20
13.85
16.96
19.59
21.90
23.99
25.91
27.70
29.38
30.97
14. 31
17.52
20.23 22.62
24.78
26.77
28.61 30.35
31.99
14.76
18.07
20.87
23.33
25.56
27.61
29.52
31.31
33.00
15. 20
18.62
21.50
24.04
. 26. 33
28.44
30.40
32.25
33.99
24
15. 64
19. 15
22.12
24. 73
27.09
29.26
31.28
33. 18
34.97
16.07
19.68
22.73
25.41
27.84
30.07
32. 14
34.09
35.94
16.50 20.20
23.33
26.08
28.57
30.86
32.99
34.99
36.89
16.92 20.72
23.92
26. 75
29.30
31.65
33.83
35.89
37.83
17.33 21.23
24. 51
27.40
30.02
32.43
34.66
36.77
38.76
17.74 21.73
25.09
28.05
30.73
33. 19
35.48
37.64
39.67
18. 15 22.23
25.67
28.69
31.43
33.95
36.30
38.50
40.58
18.55
22.72
26.23
29.33
32. 13
34.70
37.10
39.35
41. 48
18.95 23.20 26.79
29.96
32.82
35.44
37.89
40. 19
42.36
33 19.34
23.68
27.35
30.58
33.50
36. 18
38.68
41.02
43. 24
34 19.73
24. 16
27.90
31. 19
34. 17
36.91
39.45 41.85
44. 11
35 20.11
24.63
28.44
31.80
34.84
37.63
40.22
42..66
44.97
36
20.49 25.10
28.98 32.40
35.50
38.34
40.99
43.47
45.82
37 20.87
25.56
29.52
33.00
36.15
39.05
41.74
44. 27
46.67
38 21.25
26.02
30.05
33.59
36.80 39.75
42.49
45. 07
47.51
39 21.62
26. 47
30.57
34.18
37.44
40.44
43.23
45.86
48.34
40
21.98
26.93
31.09
34.76
38.08
41. 13
43.97
46. 64
49. 16
41
22.35 27.37
31.61
35. 34
38.71
41.81
44.70
47.41
49.98
42 22.71
27.82
32. 12
35.91
39.34
42.49
45.42
48. 18
50.78
43
23.07 28.26
32.63
36.48
39.96
43.16
46. 14
48.94
51.59
44
23.43
28.69
33. 13
37.04
40.58
43.83
46.85
49.70
52.38
45
23.78
29. 13
33.63
37.60
41. 19
44.49
47.56
50.45
53. 17
46
24. 13
29.55
34. 13
38. 16
41.80
45. 15
48.26
51. 19
53.96
47
24.48
29.98
34.62
38.71
42.40
45.80
48.96
51.93
54.74
48
24.83
30.41
35. 11
39.25
43.00
46.45
49.65
52.66
55. 51
49
25. 17
30.83
35.60
39.80 43.60
47.09
50.34
53.39
56.28
50
57.04
25.51
54. 12
31.24
51.02
36.08
47.73
40.34
44. 19
414
HYDRAULIC TABLES
Table 31.—Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
r2/31/2
n=.025—Continued


♡
.0055
.0060 .0065
.0070 .0075 .0080 .0085
.0090
.0095
.0100
T
21
DERRI 12222 222** *22*2 --88
10
20.46
21.37
22. 24
23.08
23.89
11
21.80
22.77
23.70
24. 60
25.46
24.68 | 25. 44
26.30 27.11 27.89
26.17
26.89
27.59
28.66
29.40
12
23. 11
24. 13
25. 12
26.07
26.98 27.87
28.72 | 29.56 | 30.37
31.16
14
13 24. 37
25.61
25.46
26.50
27.50
26.74
27.84
28.89 29.90
28.46 29.39
30.88
30.30 31.18 32.03
32.86
31.83 32.76
33.65
34.53
15
26.81
28.00 29.15
30.25
31.31
32.34 33. 33 | 34. 30
35.24
36.15
16 27.99 29.23 30.43
31.58
32.69
33.76 | 34.80 35.81
36.79
37.74
17 29.14
30.44 31.68
32.88
34.03
35. 15 36.23
37.28 38.30
39.30
18 30.28
31.62
32.91
34. 16
35.36
36.52
37.64 38.73 39.79
40.83
19 31.39
32.78
34.12
35.41
36.65 37.86
39.02
39.02❘ 40.15 | 41.25
42.32
20
32. 48
33.92
35. 31
36.64 37.93 | 39.17
40.38
41.55 42. 69
43.80
33.55
35.05
36.48
36. 48
34.61
36.15
37.63
37.85 | 39.18 | 40. 47 | 41.71 42.92
39.05 40.42 | 41.74 | 43.03| 44. 27
44. 10
45. 24
45.49
46.67
24
23 35.65 37.24 38.76
36.68 38.31 39.87
25 37.69 39.37 40.97
40.22 41.63 43.00 44.32 | 45.61
41.38 42.83 | 44.23 | 45.60 | 46.92
46.86
48.07
48.20
49.46
42.52
44. 01
45.46
46.85 48. 21 | 49.53
50.82
26
38.69
40.41
42.06
43.65
45.18
46. 66
48.10
49.49 50.85
52. 17
27
39.67
41. 44
43. 13
44.76
46.33
47.85
49.32
50.75
52.14
53.50
28
40. 65
42.45
44. 19
45.86
47.47 49.02 50.53
52.00
53.42
54.81
29
41. 61
43.46
45.23
46.94 48.59 50.18
51.73
53.23
54.69
56.11
30
42.56
44.45
46.27
48.01
49.70 51.33 52.91
54.44
55.94
57.39
31 43.50
45. 44
47.29
49.08
50.80 52.46 54.08
55. 65
57.17
58.66
32
44.43
46. 41
48.30
50. 13
33
45.35
47.37
49.30
51.16
34 46. 26
48.32 50.29
52.19
51.89 53.59 55.24
52.96 54.70 56.38
54.03 55.80 57.51
56.84
58.39
59.91
58.02 59.61
61.15
59.18 60.80
62.38
35 47.17 49.26
51.28
53. 21
55.08
56.89 | 58.64
60.34 | 61.99
63.60
36 48.06 50.20
52.25
54.22
56. 12
57.96 | 59.75 | 61.48
63.16
64.81
37 48.95
51.12
53. 21
55. 22
57.16
59.03
60.85
62. 61
64.33
66.00
38
49.83
52. 04
54. 17
56. 21
58. 18
60.09
61.94
63.74
65.48
67.18
39
50.70
52.95
55.11
57.19
59.20
61.14
63.02❘ 64.85 66.63
68.36
40
51.56
53.85 56.05
58.17
60. 21
62.18
64.10 | 65.95
67.76
69.52
41
52. 41
54.74 56.98 59.13
61. 21
63.21
65. 16
67.05
68.89
70.68
42
53.26
55.63
57.90 60.09
62. 20
64. 24
66. 21
68.13 70.00
71.82
43
54.11
56. 51
58.82 61.04
63.18
65. 25
67.26
69.21
71.11
72.96
44
54.94
57.38
59.73 61.98
64. 16
66. 26
68.30
70.28
72. 21
74.08
45
55.77
58.25 60.63 62.92
65. 13
67.26 69.33
71.34
73.30
75.20
46
56. 59
59.11 61.52 63.85
66.09
68.25 | 70.35
72.39 74.38
76.31
47
57.41
59.96 62.41
64.77
67.04
69.24 71.37
73.44 75.45
77.41
48 58.22
60.81
63.29
65. 68
67.99
70.22 72.38
74.48 76.52
78.51
49 59.03
61.65 64. 17
66.59
68.93
71.19 | 73.38
75.51 77.58
79.59
50 59.83
80.67
62.49 72.16 74.38 76.53 78.63
65.04 65.04
67.50 69.86
HYDRAULIC TABLES
415
Table 31.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.025—Continued

.01
.02
.03
03.0
.01
.05
.06
.07
.08
.09
.10
T
CERIE 1==== 27833 *2*KR SH☹*** ***88 ***** ****
10
27.59
39.02
47.79
55. 18
61.69
67.58 73.00
78.04
82.77
87.25
11
29.40
41.58
50.92
58.80
65. 74
72.01
77.78
83.15
88. 20
92.97
12
31. 16
44.06
53.96
62.31
69.67
76.31
82.43
88. 12
93.47
98. 52
13
32.86
46.48
56.92
65. 73
73.48
80.50 86.95
92.95
98.59 103.92
14
34.53
48.83
59.80
69.05
77.21
84.57
91.35
97.66
103.58 109. 19
15 36. 15
51. 13
62. 62
72.31
80.84 88.56
95.65 102, 26
108, 46
114.32
16
37.74
53.38
65.37
75.48
17
39.30
55. 58
68.07
78.60
87.87
84.39 92.45
96.26
99.86 106.75
113. 23
119.35
103.97
111. 15|
117.90
124. 27
18
40.83
57.74
70.71
81.65
91.29 100.00 108. 01|
115. 47
122. 48
129.10
19
42.32
59.85 73.31
84.65
94. 64 103, 67|
111.98
119. 71|
126. 97
133.84
20
43.80
22
21 45. 24
46.67
48.07
61.94 75.86|
63.98 78.36
66.00 80.83
67.98 83. 26
24
49.46
69.94
85.66
87.59 97.93 107.28
90.49 101. 17 110.82
93.34 104.35 114. 31
96.15 107.49 117.75
98.91 110.59
115.87 123.87
131.39
138.49
119.70 127.97 135. 73
143. 07
123. 47
132.00
140.01
147.58
127. 19
135.97 144. 22
152. 02
121. 14|
130.85
139.88 148.37
156. 39
25
50.82
26
52, 17
71.87 88.02 101.64 113. 64
73.78 90.36 104.33 116.65
124. 48
134.46 143.74 152.46| 160.71
127.78
138.02 147.55
156. 50 161.97
27
53. 50
75.65 92.66 106.99 119.62
131. 04
141.54
151.31
160.49| 169. 17
28
54.81
77.51
94.93 109.62 122. 56
134. 25|
145. 01
155. 02
164.43| 173. 32
29
56. 11
79.35
97.18 112. 21|
125. 46
137.43
148.44
158. 69
168.32 177.42
30 57.39
81. 16 99.40 114.78
128. 33
140. 57
140.57
151.84
162. 32
172. 17
181. 48
31 58.66
82.95 101.60 117.31
131. 16
143. 68
155. 19
165. 91
175. 97
185.49
32
59.91
84.73 103.77 119.82 133.97
146.75
158. 51|
169.46
179.74
189.46
33
61. 15
86.48 105.92 122.31|
136. 74
149. 79
161.80
172.97
183. 46
193.38
34
62.38
88.22 108.05 124. 77
139. 49
152.81
165.05
176. 45
187. 15
197.27
35
63.60
89.94 110. 16
127. 20
142. 21|
155. 79
168. 27
179.89| 190.80 201. 12
36
64.81
91.65 112. 25
129.61|
144.91
158.74
171.46
183.30
194.42) 204.93
37
66.00
93.34 114.32
132.00
147. 58
161. 67
174. 62
186. 68
198. 00
208.71
38
67. 18
95.01 116. 37
134. 37
150. 23
164. 57
177.75
190. 03
201. 55
212.46
39
68.36
96.67 118.40 136.72
152.85
167.44
180.86 193. 35
205. 07❘
216. 17
40
69.52
98.32 120.41|
139.04|
155. 45
170.29|
183.94| 196. 64
208. 56|
219.85
41
70.68 99.95 122.41 141. 35
158. 03
173.12
186. 99
199.90
212.03 223.50
42
71.82 101.57 124. 40
143.64
160. 59
175.92
190.02 203. 14
215. 46| 227.11
43 72.96 103.17 126.36 145.91
163. 13|
178.70
193.02 206.35
218.87 230.71
44
74.08
104.77 128.31
148. 16
165. 65
181. 46
196.00 209.54 222. 25 234.27
45
75. 20
106.35 130. 25
150. 40
168. 15
184. 20
198.96 212.70 225. 60
237.80
46
76. 31
107.92 132. 17
152. 62
170. 64
186.92
201.90 215.84 228.93
241.31
47
77.41
109. 48 134.08 154. 82
173. 10
189. 62
204.81
218.96 232. 24
244.80
48
78.51
111.03 135.98 157.01
175. 55
192. 30
207. 71
222.05
235. 52
248.26
49
79.59 112.56 137.86 159. 19
177.98
194. 96
210. 58
225. 12
238. 78
251.70
50
80.67 114.09 139.73 161.34| 180.39 197.61 213.44| 228. 18 242.02 255. 11
•
416
HYDRAULIC TABLES
Table 32.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
2/31/2
n=.0275


8
.00005
005
.00010 | |
0010 .00015 .00020.00025.00030.00035.00040.00045.00050
0.2
0.13
0.18 0.23 0.26
0.29
0.32
0.35 0.37
0.39
0.41
0.4
.21
.29
.36
41
.46
.51 .55
.59
.62
.66
0.6
.27
.38
.47
.54
.61
.67
.72
.77
.82
.86
0.8
.33
.47
.57
.66
.74
.81
.87
.93
.99
1.04
1.0
1.2
1. 4
1.6
1.8
0248 αO
.38
.54
.66
.76
.85
.94
1.01
1.08
1.15
1. 21
.43
.61 .75
.86
.96
1.06
1. 14
1. 22
1,29
1.36
48
•
.68
.83
.96
1.07
1.17
1.27
1.35
1.43
1. 51
.52
.74
.91
1.05
1.17
1.28
1.38
1.48
1.57
1.65
.57
.80 .98
1.13
1.26
1.38
1.50
1.60
1.70
1.79
2.0
.61
.86
1.05
1.21
1.36
1.49 1.60
1.72
1.82
1.92
2.2
.65
.91
1.12
1.29
1.45
1.58
1.71
1.83 1.94
2.04
2.4
.68
.97
1.19
1.37
1.53
1.68
1.81
1.94
2.05
2.17
2.6
.72
1.02
1. 25
1.44
1.62
1.77
1.91
2.04 2.17
2.28
2.8
.76
1.07
1.31
1.52
1.70
1.86
2.01
2.15
2.28
2.40
3.0
.79
1.12
1.38
1.59
1.78
1.95 2.10
2.25
2.38
2. 51
3.2
.83
1.17
1. 44
1.66
1.86
2.03
2.20
2.35
2.49
2.62
3.4
86
1.22
1.50
1.73
1.93
2. 12
2.29
2. 44
2.59
2.73
3.6
.90
1.27
1.55
1.80
2.01
2.20 2.37
2.54
2.69
2.84
3.8
.93
1.32
1.61
1.86
2.08
2.28
2.46 2.63
2.79
2.94
4.0
.96
1.36
1.67
1.93
2.15
2.36
2.55 2.72
2.89
3.04
4.2
.99
1. 41
1.72
1.99
2.22
2.44
2.63 2.81
2.98
3.15
4.4
1.03
1.45
1.78
2.05
2.29
2.51
2.71
2.90
3.08
3.24
4.6
1.06
1.49
1.83
2.11
2.36 2.59 2.80
2.99
3. 17
3.34
4.8
1.09
1.54
1.88
2. 17
2.43
2.66 2.88
3.08
3.26
3. 44
ம்ம்ம்ம்ம்
5.0
5.2
5.4
5.6
5.8
−2+ SO OD
1.12
1.58
1.94
2. 23
2.50
2.74 2.96
3.16
3.35
3.53
1. 15
1.62
1.99
2. 29
2,56
2.81
3.03
3. 24
3.44
3.63
1. 18
1.66
2.04
2. 35
2.63
2.88
3. 11
3.33 3.53
3.72
1.20
1.70
2.09
2.41
2.69 2.95
3.19
3.41 3.61
3.81
1. 23
1.74
2. 14
2.47
2.76
3.02
3.26
3.49 3.70
3.90
6.0
1.26
1.78
2.19
2.52
2.82
3.09
3. 34
3.57
3.78
3.99
6.2
1.29
1.82
2.23
2.58
2.88
3.16
3.41
3.65 3.87
4.08
6.4
1. 32
1.86
2.28
2.63 2.95
3.23 3.48
3.73
3.95
4. 17
6.6
1.34
1.90
2. 33
2.69
3.01 3.29 3.56
3.80
4.03
4. 25.
6.8
1.37
1.94
2.38
2.74 3.07 3.36 3.63
3.88
4.11
4.34
7.0
1.40
1.98
2.42
2.80
3.13 3.42 3.70
3.95
4. 19
4.42
7.5 1.46
2.07
2. 54
2.93
3.27 3.59
3.87
4. 14
4.39
4.63
8.0 1.53
2.16
2.65
3.06
3.42 3.74
4.04
4.32
4.59
4.83
8.5
1.59
2.25
2.76
3. 18
3.56 3.90
4. 21
4.50
4.77
5.03
9.0 1.65
2.34
2.86
3.31
3.70 4.05
4.37
4.68
4.96
5. 23
9.5 1.71
5.42
2.42
5.14
2.97 3.43 3.83
4.85
4.20
4. 53
HYDRAULIC TABLES
417
Table 32.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0275—Continued



8
.00055
.00060 .00065.00070 | .00075 | .00080 | .00085 | .00090 | .00095
075 0080 0085 0090
.00100
T
0.2
0.43
0.45
0.47
0.49 0.51
0.52
0.54
0.55
0.57
0.58
0.4
.69
.72
.75
.78 .80
.83
.86
.88
.90
.93
0.6
.90
.94
.98
1.02
1.05
1.09
1. 12
1. 15
1. 18
1. 22
0.8
1.09
1.14
1.19
1. 23
1.28
1.32
1.36
1.40
1.44
1.47
1.0
1.27
1.32
1.38
1.43
1.48
1.53
1.58
1.62
1.67
1.71
1.2
1.43
1.49
1.56
1.61
1.67
1.73
1.78
1.83
1.88
1.93
1,4
1.59
1.66
1.72
1.79
1.85
1.91
1.97
2.03
2.08
2. 14
1.6
1.73
1.81
1.88
1.96
2.02
2.09
2. 16
2. 22
2.28
2.34
1.8
1.88
1.96
2.04
2.12
2. 19
2. 26
2. 33
2.40
2.46
2.53
2.0
2.01
2.10
2. 19
2.27
2.35
2.43
2.50
2.57
2.64
2.71
2.2
2. 14
2. 24
2. 33
2.42
2.50
2.59 2.66
2.74
2.82
2.89
2.4
2.27
2.37
2. 47
2.56
2.65
2.74
2.82
2.91
2.99
3.06
2.6
2.40
2.50
2.60
2.70
2.80
2.89
2.98
3.07
3. 15
3. 23
2.8
2.52
2.63
2.74
2.84
2.94
3.04
3. 13
3. 22
3. 31
3.39
3.0 2.64
2.75
2.87
2.97
3.08
3.18
3. 28
3.37
3.46
3.55
3.2 2.75
2.87
2.99
3. 10
3. 21
3.32
3.42
3.52
3.62
. 3.71
3.4
2.87
2.99
3. 12
3. 23
3.35
3.46
3.56
3.67
3.77
3.86
3,6
2.98
3.11
3. 24
3.36
3.48
3.59
3.70
3.81
3.91
4.01
3.8
3.09
3. 22
3.35
3.48
3.60 3.72
3.84
3.95
4.06
4. 16
4.0
3. 19
3.34
3.47
3.60
3.73
3.85
3.97
4.08
4. 20
4. 31
4.2
3.30
3.45
3.59
3.72
3.85
3.98
4. 10
4. 22
4.34
4. 45
4.4
3.40
3.55 3.70
3.84
3.97
4.10
4. 23
4.35
4. 47
4. 59
4.6 3.51
3.66
3.81
3.95
4.09
4. 23
4.36
4.48
4.61
4.73
4. 8
3.61
3.77
3.92
4.07
4. 21
4. 35
4. 48
4.61
4.74
4.86
5.0
3.71
3.87
4.03
4. 18
4.33
4. 47
4. 61
4.74
4.87
5.00
5.2
3.80
3.97
4. 14
4. 29
4. 44
4. 59
4.73
4.87
5.00
5. 13
5.4 3.90
4. 07
4. 24
4.40
4.55
4.70
4. 85
4.99
5. 13
5. 26
•
5.6
4.00
4. 17
4. 34
4.51
4.67
4.82
4.97
5. 11
5. 25
5. 39
5.8
4.09
4. 27
4. 45
4.62
4.78
4.93
5.09
5. 23
5.38
5.52
6.0
4. 18
4.37
4. 55
4.72
4.89
5. 05
5.20
5.35
5.50
5. 64
6.2
4. 28
4. 47
4.65
4. 82
4.99
5. 16
5.32
5.47
5. 62
5.77
6.4
4.37
4.56
4.75
4.93
5. 10
5. 27
5. 43
5.59
5.74
5.89
6.6
4. 46
4.66
4.85 5. 03
5. 21
5.38
5.54
5.70
5.86
6.01
6.8
4.55
4.75
4.94 5. 13
5.31
5.49
5. 65
5.82
5.98
6. 13
7.0
4.64
4.84
5.04
5. 23
5.42
5.59
5.76
5.93
6.09
6. 25
7.5 4.86
5.07
5. 28
5. 48
5.67
5.86
6.04
6. 21
6.38
6. 55
8.0
5.07
5. 29
5.51
5.72
5.92
6. 11
6.30
6. 48
6.66
6.84
8.5
5.28
5.51
5.74
5.95
6. 16
6.37
6. 56
6.75
6.94
7. 12
9.0
5. 48
5.73
5.96 6. 19
6.40
6. 61
6.82
7.01
7.21
7.39
9.5
7.66
5.68
7.47
5.94
7.27
6. 18 6. 41
7.07
6. 64
6.86
418
HYDRAULIC TABLES
Table 32.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
Co
n=.0275—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
T
0.2
0.58
0.72
0.83
0.92
1.01
1.09
1.17
1.24
1.31
0.4
.93
1.14
1.31
1.47
1.61
1.74
1.86
1.97
2.07
0.6
1.22
1.49
1.72
1.92
2.11
2. 27
2.43
2.58
2.72
0.8
1.47
1.80
2.08
2.33
2.55
2.75
2.95
3. 12
3.29
1.0
1. 2
1. 4
1. 6
1.8
→2→ ∞ ∞
1.71
2.09
2.42
2.70
2.96
3.20
3.42
3.62
3.82
1.93
2.36
2.73
3.05
3.34
3.61
3.86
4.09
4. 31
2. 14
2.62
3.02
3.38
3.70
4.00
4. 28
4. 54
4.78
2.34 2.86
3.31
3.70
4.05
4. 37
4.68
4.96
5. 23
2.53
3.10
3.58
4.00
4.38
4. 73
5.06
5.36
5.65
2.0
2.71
3.32
3.84
4.29
4.70
5.07
5.43
5.75
6.07
2.2
2.89
3.54
4.09
4.57
5.01
5.41
5.78
6. 13
6.46
2. 4
3.06
3.75
4.33
4.84
5. 31
5.73
6. 13
6.50
6.85
2.6
3.23
3.96
4. 57
5. 11
5.60
6.04
6.46
6.85
7.22
2.8
3.39
4. 16
4.80
5.37
5.88
6.35
6.79
7.20
7.59
3.0
3.55
4.35
5.03
5.62
6. 16
6.65
7.11
7.54
7.95
3.2
3.71
4.54
5.25
5.87
6.43
6.94
7.42
7.87
8.30
3. 4
3.86
4.73
5.46
6. 11
6. 69
7.23
7.73
8.20
8.64
3. 6
4.01
4.92
5.68
6.35
6.95
7.51
8.03
8.51
8.98
3.8
4. 16
5.10
5.88
6.58
7.21 7.78
8.32
8.83
9.30
4.0
4.31
5.27 6.09
6.81
7.46
8.06
8.61
9.13
9.63
4.2
4.45
5.45 6.29
7.03
7.70
8.32
8.90
9.44
9.95
4. 4
4.59
5.62
6.49
7.25
7.95
8.58
9.18
9.73
10.26
4. 6
4.73
5.79
6.68
7.47
8. 19
8.84
9.45 10.03
10.57
4.8
4.86
5.96
6.88
7.69
8.42
9.10
9.72
10.31
10.87
5.0
5.00
6. 12
7.07
7.90
8.65
9.35
9.99
10.60
11.17
5.2
5. 13
6. 28
7.25
8.11
8.88
9.60
10.26
10.88
11.47
5.4
5. 26
6. 44
7.44
8.32
9. 11
9.84
10.52
11. 16
11.76
5.6
5.39
6.60
7.62
8.52
9.33
10.08
10.78
11.43
12.05
5.8
5.52
6.76
7.80
8.72
9.55
10.32
11.03
11.70
12.33
6.0
5.64
6.91
7.98
8.92
9.77
10.56
11.28
11.97
12.62
6.2
5.77
7.06
8.16
9.12
9.99
10.79
11.53
12.23
12.90
6.4 5.89
7.21
8.33
9.31
10. 20
11.02
11.78
12.50
13. 17
6.6
6.01
7.36
8.50 9.51
10.41
11. 25
12.02
12.75
13.44
6.8
6. 13
7.51
8.67
9.70
10.62
11.47
12.27
13.01
13.71
7.0
6. 25
7.66
8.84 9.89
10.83
11.70
12. 51
13.26
13.98
7.5
6.55
8.02
9.26 10.35
11.34
12. 25
13 09
13.89
14.64
8.0
6.84
8.37 9.67
10.81
11.84
12.79
13.67
14.50
15. 28
8.5
7.12
8.72 10.06
11.25
12.33
13.31
14.23
15.10
15. 91
9.0 7.39
9.06
10.46 11.69
12.81 13.83
14.79
15.68
16.53
9.5
17. 14
7.66
16.26
9.39
15.33
10.84 12. 12
14.34
13. 28
HYDRAULIC TABLES
419
Table 32.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v=- -r2/31/2
n=.0275—Continued

8
.0055
.0060 .0065 .0070 .0075 .0080 .0085 .0090 .0095 .0100
0.2
1.37
1.43
1.49
1.55 1.60
1.65
1.70
1.75 1.80
1.85
0.4
2. 18
2. 27
2.37
2.45 2.54
2. 62
2.70
2.78
2.86 2.93
0.6
2.85
2.98
3. 10
3.22
3.33
3.44
3. 54
3.65
3.75
3.84
0.8
3.45
3.61
3.75
3.90
4.03
4. 17
4.29
4. 42
4. 54
4.66
1.0
4.01
4. 19
4. 36
4.52
4. 68
4.83
4.98
5. 13
5. 27
5.40
1.2
4. 53
4. 73
4.92
5. 11
5. 28
5.46
5. 63
5.79
5.95
6. 10
1.4
5.02
5. 24
5. 45
5.66
5.86
6.05
6. 23
6.42
6.59
6.76
1.6
5.48
5.73
5.96
6. 18
6.40
6.61
6.82
7.01
7.20
7.39
1.8
5.93
6. 19
6.45
6.69
6.92
7. 15
7.37
7.59
7.79
8.00
2.0
6.36
6.64
6.92
7.18
7.43
7.67
7.91
8. 14
8.36
8.58
2.2
6. 78
7.08
7.37
7.65
7.92
8. 18
8.43
8.67
8.91
9. 14
2.4
7. 18
7.50
7.81
8.10
8.39
8.66
8.93
9. 19
9.44
9.69
2.6
7.58
7.91
8. 24
8.55
8.85
9. 14
9.42
9.69
9.96
10. 22
2.8
7.96
8.32
8.65
8.98
9.30
9.60
9.90
10. 18
10.46
10.73
3.0 8.34
8.71
9.06
9.40
9.73
10.05
10.36
10.66
10.96
11. 24
3.2 8.70
9.09
9.46
9.82
10. 16
10.50
10.82
11. 13
11. 44
11. 73
3.4 9.06
9.46
9. 85
10. 22
10.58
10.93
11. 26
11. 59
11. 91
12. 22
3.6
9.41
9.83
10.23
10. 62
10.99
11.35
11.70
12. 04
12. 37
12.69
3.8 9.76
10. 19
10. 61
11.01
11.40
11.77
12. 13
12. 48
12. 83
13. 16
4.0
10. 10
10.55
10.98
11.39
11. 79
12. 18
12.55
12.92
13. 27
13. 62
4.2
10.43
10.90
11. 34
11.77
12. 18
12.58
12.97
13. 34
13. 71
14.07
4.4
10. 76
11. 24
11.70
12. 14
12. 57
12.98
13.38
13.76
14. 14
14. 51
4.6
11.08
11.58
12.05
12.50
12.94
13.37
13.78
14. 18
14. 57
14.95
4.8
11.40
11.91
12.40
12.86
13. 32
13.75
14. 18
14.59
14.99
15.38
5.0
11. 72
12. 24
12. 74
13. 22
13.68
14. 13
14. 57
14.99
15.40
15.80
5.2
12.03
12. 56
13.08
13. 57
14.05
14. 51
14.95
15. 39
15. 81
16.22
5.4
12. 33
12.88
13. 41
13.92
14. 40
14.88
15. 33
15.78
16. 21
16. 63
5.6
12. 64
13. 20
13.74
14.26
14.76
15. 24
15.71
16. 17
16. 61
17.04
5.8
12.94
13. 51
14.06
14.59
15. 11
15.60
16.08
16. 55
17.00
17.44
6.0
13. 23
13.82
14.39
14.93
15.45
15.96
16. 45
16.93
17.39
17.84
6.2
13.52
14. 13
14.70
15. 26
15. 79
16. 31
16.81
17.30
17.77
18. 24
6.4
13.81
14. 43
15.02
15.58
16. 13
16. 66
17. 17
17.67
18. 16
18.63
6.6
14. 10
14.73
15.33
15.91
16.47
17.01
17.53
18.04
18. 53
19.01
6.8
14.38
15.02
15. 64
16. 23
16.80
17.35
17.88
18.40
18.90
19.40
7.0
14.66
15.32
15. 94
16. 54
17. 12
17.69
18. 23
18.76
19. 27
19.77
7.5
15. 35
16. 04
16.69
17.32
17.93
18.52
19.09
19. 64
20. 18
20.70
8.0
16. 03
16.74
17.43
18.08
18.72
19. 33
19. 93
20. 51
21.07
21. 61
8.5
16.69
17.43
18. 14
18.83
19.49
20. 13
20.75
21.35
21.94
22.51
9.0
17.34
18. 11
18.85
19.56
20.25
20.91
21. 56
22. 18
22.79
23.38
9.5
24. 24
17.98
23.62
18. 77 19.54 20. 28
22.99
20.99
22.35
21.68
420
HYDRAULIC TABLES
Table 32.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/3g1/2
N
n=.0275—Continued

co
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
0.2
1.85
2.61
3.20
3.70
4. 13
4. 53
4.89
5. 23
5.54
5.84
0.4
2.93
4. 15
5.08
5.87
6.56
7. 19
7.76
8.30
8.80
9.28
0.6
3.84
5. 44
6.66
7.69
8.60
9.42
10. 17
10.87
11.53
12. 16
0.8
4.66
6.59
8.07
9.31
10.41
11.41
12.32
13. 17
13.97
14. 73
1.0
5.40
7.64 9.36 10.81
12.08
13. 24
14.30
15. 28
16. 21
17.09
1.2
6. 10
1.4
6.76
8.63 10.57
9.56 11.71 13.52
12.20
13. 64
14.95
16. 14
17.26
18.31
19.30
15. 12
16.56
17.89
19. 13
20.29
21.38
1.6
7.39
10.45
12.80
14.78
16.53
18. 11
19.56
20.91
22.18
23.38
1.8
8.00
11.31 13.85
15.99
17.88
19.59
21.16
22.62
23.99
25. 29
2.0
8.58
12. 13
14.86
17.16
19.18
21.01 22.69
24.26
25.73
27. 13
2.2
9. 14
12.93
15.83
18.28 20.44
22.39❘ 24. 18
25.85 27.42
28.90
2.4
9.69
13.70
16.78
19.37
21.66
23.73
25.63
27.40 29.06
30.63
2.6
10. 22
14. 45
17.70
20.43
22.85
25.03
27.03
28.90 | 30.65
32. 31
2.8
10.73
15. 18
18.59
21.47
24.00
26. 29
28.40
30.36 32.20
33.95
3.0
11. 24
15.90
19.47
22.48
25.13
27.53
29.74
31.79
33.72
35. 54
3.2
11.73
16.59
20.32
23.47
26. 24
28.74
31.05 33.19
35.20
37. 11
3.4
12.22
17.28 21.16
24. 44
27.32
29.93
32.33 | 34.56
36.65
38.64
3.6
12.69
17.95 21.98
25.39
28.38
31.09
33.58 35.90
38.08
40. 14
3.8
13. 16
18. 61
22.79
26.32
29.42
32.23 34.81
37.22
39.48
41.61
4.0
13.62
19. 26
23.58
27.23
30.45
33.35
33.35 36.03 | 38.51
40.85
43.06
4.2 14.07
19.89
24.36
28. 13
31.45
34.46
37.22 39.79
42. 20
44.48
4.4 14.51
20.52
25.13 29.02
32. 44
35.54
38.39 41.04
43. 53
45.88
4.6 14.95
21.14
25.89
29.89
33.42
36.61
39.54
42.27
44.84
47.26
4.8
15.38
21.75
26.63
30.75
34.38
37.66
40.68
43.49
46. 13
48.62
5.0
15.80
22.35 27.37
31.60
35. 33 | 38.70
41.80
44. 69
47.40
49.97
5.2
16. 22
22.94
28.09
32. 44
36. 27 39.73
42.91
45.87
48.66
51.29
5.4
16. 63
23.52
28.81
33.26
37.19 | 40.74
44.00
47.04
49.90
52.60
5.6
17.04
24.10 29.51
5.8
17.44
24.67 | 30. 21
34.08 38.10 41.74
34.89 39.01
45.08
48.20
51. 12
53.89
42.73
46. 15
49.34
52.33
55. 16
6.0
17.84
25.23 30.90
35.68 39.90
43.70 | 47.21
50.47
53.53
56. 42
6.2
18.24 25.79
31.59
36.47
40.78
44.67 48.25
51.58 54.71
57.67
6.4
18.63 26.34
32. 26
37.25
41.65
45.63
49.28
52.68 55.88
58.90
6.6 19.01 26.89
32.93
38.03
42. 51
46.57
50.30
53.78
57.04
60. 12
6.8 19.40
27.43 33.59 38.79
43.37 | 47.51
51.31
54.86 58.19
61.33
7.0 19.77 27.96 34.25
7.5 20.70 29.28 35.86 41.41
39.55
44. 22
48. 44
52.32
55.93
59.32
62.53
46.30
50.71
54.78
58.56
62.11
65. 47
8.0 21.61 30.57 37.44
43.23
48.33
52.94
57.19
61. 14
64.84
68.35
8.5 22.51 31.83 38.98
9.0 23.38 33.06 40.50
45. 01
50.32
55. 13
59.55
63.66
67.52
71. 17
46.76
52.28
57.27
61.86
66. 13
70. 14
73.93
9.5
76.65
24. 24 34. 28 41.98 | 48.48 | 54. 20 | 59.37
72.71
64. 13
68.56
HYDRAULIC TABLES
421
Table 32.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v=· r2/31/2
n=.0275—Continued




.00005
|
.00010 .00015 .00020.00025.00030.00035.00040.00045.00050
035 .00040 0045
T
10
1.77
2. 51
3.07 3.55
3.97
4.34 4.69 5.02
5. 32
5.61
11
1.89
2.67
3.27
3.78
4. 23
4.63
5.00 5.35
5.67
5.98
12
2.00
2.83
3.47
4.01
4.48
4.91
5.30 5.66
6.01
6.33
13
2. 11
2.99
3.66
4. 23
4.72
5. 17
5.59
5.98
6.34
6.68
14
2. 22
3. 14
3.84
4.44
4.96
5. 44
5.87
6. 28
6.66
7.02
15
2. 32
3.29
4.03
4.65
5. 20
5.69
6.15
6. 57
6.97
7.35
16
2. 43
3.43
4.20
4.85
5.43
5.94
6.42
6.86
7. 28
7.67
17
2.53
3.57
4.38
5.05
5.65
6. 19
6.68
7.15
7.58
7.99
18
2.62
3.71
4.55
5. 25
5.87
6.43
6.94
7.42
7.87
8.30
19
2.72
3.85
4.71
5. 44
6.08
6.66
7.20 7.70
8.16
8.60
20
2.82
3.98
4.88
5.63
6.30
6.90
7.45
7.96
8.45
8.90
21
2.91
4. 11
5.04
5.82
6.50
7.12 7.69
8.23
8.73
9.20
22
3.00
4.24
5.20
6.00
6.71
7.35 7.94
8.49
9.00
9.49
23
3.09
4.37
5.35
6. 18
6.91 7.57
8.18
8.74
9.27
9.77
24
3. 18
4.50 5.51
6.36
7.11
7.79
8.41
8.99
9.54
10.05
222
25
3.27
4.62
5.66
6.53
7.30
8.00
8.64
9. 24
9.80
10.33
26
3.35 4.74 5.81
6.71
7.50
8. 21
8.87
9.48
10.06
10.60
27
3.44
4.86 5.96
6.88
7.69
8.42
9.10
9.73 10.32
10.87
28 3.52
4.98 6.10
7.05
7.88
8.63 9.32
9.97
10.57
11.14
29
3.61
5.10
6.25
7. 21
8.06
8.83
9.54
10. 2010.82
11.41
30
3.69
5.22
6.39
7.38
8. 25
9.04
9.76
10.43 11.07
11.67
31
3.77 5.33 6.53
7.54
8.43
9.24
9.98
10.66
11.31
11.92
32
3.85
5.45 6.67
7.70
8.61
9.43
10. 19
10.89
11.55
12. 18
33 3.93
5.56
6.81
7.86
8.79 9.63
10.40
11. 12
11.79
12.43
34 4.01
5.67
6.95
8.02
8.97
9.82
10.61
11.34
12.03
12.68
35
4.09
5.78
7.08
8.18 9.14
10.01
10.82
11.56
12. 27
12.93
36
4. 17
5.89
7.22 8.33
9.32
10.20
11.02
11.78
12.50
13. 17
37
4. 24
6.00
7.35 8.49
9.49
10.39
11.23
12.00
12.73
13.42
38
4.32
6.11
7.48
8.64
9.66
10.58 11.43 12.22
12.96
13. 66
39
4.39
6. 21
7.61
8.79
9.83
10.76
11.63
12.43 13.18
13.90
40
4.47
6.32
7.74
41 4.54
42
4.62
8.94 9.99 10.95
6.43 7.87 9.09 10.16 11.13
6.53 8.00
11.82
12.64 13.41
14. 13
12.02
12.85
13.63
14.37
9.23 10.32
11.31
12. 21
13.06
13.85
14.60
43
4.69
6.63 8.12
9.38 10.49
11.49
12.41
13.26
14.07
14.83
44
4.76
6.73 8.25
9.52 10.65
11.66
12.60
13.47
14. 29
15.06
45 4.83
6.84
8.37
9.67 10.81
11.84
12.79
13.67
14.50
15. 29
46
4.91
6.94
8.50 9.81 10.97
12.02
12.98
13.87
14.72
15. 51
47
4.98
48 5.05
49 5.12
7.04 8.62 9.95 11.13
7.14 8.74 10.09 11.28
7.24 8.86 10.23 11.44
12.19
13. 17
14.07
14.93
15.74
12.36
13.35
14.27
15. 14
15.96
12.53
13. 54
14.47
15.35
16. 18
50
16.40
5.19
13. 72 | 14.67 | 15.56
7.33
12.70
8.98 10.37 11.60
422
HYDRAULIC TABLES
Table 32.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.0275—Continued


0075
.00065.00070.00075.00080.00085.00090.00095 .00100
.00055
.00060
00080
T
25
26
27
29
30
31
32
33
35
36
37
40
41
42
44
45
46
47
49
PIRII 42002 222** *8*82 -**** ***** ***** *****
10
5.88
6. 14
6.39
6. 64
6.87 7.09 7.31 7.52
7.73
7.93
11
6. 27
6.55
6.81
7.07
7.32 7.56 7.79
8.02
8. 24
8.45
12
6.64
6.94
7.22
7.49
7.76 8.01
8.26
8.50
8.73
8.96
13
7.01
7.32
7.62
7.90
8.18
8.45
8.71
8.96
9.21
9.45
14
7.36
7.69
8.00 8.30
8.60
8.88
9.15
9.42
9.67
9.93
15
7.71
8.05
8.38
8.70
9.00
9.30
9.58 9.86
10.13
10.39
16 8.05
8.40
8.75
9.08
9.40
9.70
10.00
10.29
10.58
10.85
8.75
17 8.38
18 8.70
19 9.02
9.42 9.81 10.18
20 9.34 9.75 10.15
9.11
9.45
9.78
10. 10
10.42
10. 72
11.01
11.30
9.09 9.46
9.82
10. 16
10. 50
10.82
11.13
11. 44
11.74
10.54
10.88
11. 22
11.54
11.86
12.17
10.53
10.90 | 11.26
11.61
11.94
12. 27
12.59
21
23
9.95
10.25
24 10.54
9.65 10.07 10.49 10.88
10.39 10.82 11.22
11. 26
11.63
11.99
12.34
12.68
13.01
11.62
12.00
12.37
12.73
13.08
13.42
10.70 11.14 11.56
11.97
12.36
12. 74
13. 11
13. 47
13.82
11.01 11.46 11.90
12.31
12. 72
13. 11
13.49
13.86
14.22
10.83
11.32 11.78
12. 22
12.65
13.07
13.47
13.86
14. 24
14. 61
11.12
11.62
12.09
12.55
12.99
13. 41
13.83
14.23
14. 62
15.00
11. 41
11.91
12.40
12.87
13.32
13.76
14.18
14.59
14.99
15. 38
11.69
12. 20
12.70
13. 18
13.65
14.09
14.53
14.95
15. 36
15.76
11.96
12.49
13.00
13. 49
13.97
14. 43
14.87
15.30
15.72
16. 13
12. 24
12.78
13.30
13.80
14.29
14.76
15. 21
15.65
16.08
16. 50
12.51
13.06
13.60
14. 11
14.60 15.08
15.55
16.00
16.44
16.86
12.77
13.04
13. 34
13.89
14.41
14.92
15.41
15.88
16.34
16.79
17.22
13.62
14. 17
14. 71
15.23
15.72
16. 21
16. 68
17. 14
17.58
34 13.30
13.89
14.46
15.00
15.53
16.04
16.53
17.01
17.48
17.93
13. 56
14. 16
14.74 15.30
15.83
16.35
16.86
17.35
17.82
18.28
13.82
14.43
15.02
15.59
16. 13
16.66
17. 18
17.67
18. 16
18.63
14.07 14.70
15.30
15.87
16.43
16.97
17.49
18.00
18.49
18.97
38 14.32
14.96
15.57
16. 16
16.73
17.28
17.81
18.32
18.83
19. 31
39 14.57
15. 22
15.84
16. 44
17.02
17.58
18. 12
18.64
19.15
19.65
14.82 15.48
16. 11
16.72 | 17.31
17.88
18.43
18.96
19.48
19.99
15.07 15.74
16.38
17.00
17.60
18. 17
18.73
19. 28
19.80
20.32
15.31 15.99 16. 65
17.27
17.88
18. 47
19.04
19.59
20.12
20.65
43 15.55 16.25 16.91
17.55
18. 16
18.76
19.34
19.90
20.44 20.97
15.79
16.50 17.17
17.82
18.44
19.05 19.63
20.20
20.76
21.30
16.03
16.75
17.43 18.09 18.72
19.34 19.93
20.51
21.07
21.62
16. 27
16.99 17.69
18.35 19.00
16.50
17.24
17.94
18.62
19. 27
48 16. 74
16.97
17.48
18. 20
18.88
19.55
17.72
18.45
19. 14
19.82
19.62 20.23
19.91 20.52 21.12
20.19
20.47
20.81 21.38
21.94
21.69
22. 25
20.81 21.41 22.00
21.10 21.71 22.30
22.57
22.88
50 17.20
23. 19
17.96
22.60
18.70
20.74 21.38 22.00
19.40 20.08
HYDRAULIC TABLES
423
T
Table 32.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.0275—Continued

CO
8
.0010
.0015 .0020
.0025 .0030 .0035
.0040
.0045
.0050
29
35
36
37
41
44
45
48
49
PERRI 49202 27332 32**R AM*** ***88 GE*** ***** S
10
7.93
9.71 11.22
12.54
13.74
14.84
15.86
16.83
17.74
11
8.45
10.35 11.95
13.36
14.64
15.81
16.90 17.93
18.90
12
8.96
10.97
12.67
14. 16
15. 51
16.76
17.91
19.00
20.03
13
9.45
11.57
13.36
14.94
16. 36
17.67
18.89
20.04
21. 13
14
9.93
12. 16
14.04
15.69
17. 19
18. 57
19.85
21.06
22.20
15
10.39
12.73
14.70
16.43
18.00
19. 44
20.79
22.05
23. 24
16 10.85
13. 29
15. 34
17.16
18.79
20.30
21.70
23.02
24. 26
17
18
11.30
11.74
13.84
15.98
17.86
19.57
21. 14
22.60
23.97
25. 26
14.37
16. 60
18.56
20.33
21.96
23.47
24.90
26. 24
19 12. 17
14.90
17.21
19. 24
21.07
22.76
24.33
25.81
27.21
20
12.59
15.42
17.81
19.91
21.81
23.55
25. 18
26.71
28. 15
21
13. 01
15.93
18.39
20.57
22.53
24. 33
26.01
27.59
29.08
13.42
16. 43
18.97
21.21
23. 24
25.10
26.83
28.46
30.00
13.82
16.93
19.54
21.85
23.94
25.85
27.64
29.32
30.90
24
14. 22
17.41
20.11
22. 48
24. 63
26.60
28.44
30.16
31.79
25 14.61
17.89
20.66 23.10
25.31
27.33
29. 22
30.99
32.67
26
15.00
18. 37
21.21
23.71 25.98
28.06
29.99
31.81
33.53
27
15. 38
18.84
21.75 24.32 26.64
28.77
30.76
32.62
34.39
28
15. 76
19.30
22.28 24.91 27.29
29.48
31.51
33.42
35.23
16. 13
19.75
22.81
25.50
27.94
30.18
32. 26
34.22
36.07
30
16.50 20.21
23.33
26.09
28.58
30.87
33.00
35.00
36.89
31
16.86 20.65
23.85
26.66
29.21
31.55
33.73
35.77
37.71
32 17.22 21.09
24. 36
27.23
29.83
32. 22
34.45
36.54
38.51
33
17.58 21.53
24.86
27.80
30.45
32.89
35. 16
37.29
39.31
34
17.93 21.96
25.36
28.36 31.06
33. 55
35.87
38.04
40. 10
18.28
22. 39
25.86
28.91
31.67
34.21
36.57 38.79
40.88
18. 63
22.82
26. 35
29.46
32.27
34.85
37.26 39.52
41.66
18.97
38 19.31
23. 24
26.83
30.00
32.86
35.50
37.95
40.25
42. 43
23.65
27.31
30.54
33.45
36. 13
38.63
40.97
43. 19
39 19.65
24.07
27.79
31.07
34.04
36.76
39.30
41.69
43.94
40
19.99 24.48 28.26
31.60
34.62
37.39
39.97
42.40
44.69
20.32 24.88 28.73
32. 13
35. 19
38.01
40.64
43. 10
45. 43
42 20.65 25.29
29.20
32. 65
35.76
38.63 41.29
43.80
46. 17
43 20.97 25.69
29.66
33.16
36.33 39.24 41.95
44.49
46.90
21.30 26.08 30. 12
33.67
36.89
39.84
42.59
45. 18
47.62
21.62 26.48
30.57
34. 18
37.44
40. 44
43. 24
45.86
48.34
46 21.94 26.87 31.02
34.69
38.00
41.04
43.88
46.54
49.05
47
22.25 27.26
22.57 27.64 31.92
22.88 28.02
31.47
35. 19
38.55
41.63
44.51
47.21
49.76
35.68
39.09
42.22
45. 14
47.88
50.47
32.36
36. 18
39.63 42.81
45.76
48.54
51. 16
50
23. 19
28.40 32.80
36.67 40.17 43.39
46.38
49.20
51.86
424
HYDRAULIC TABLES
Table 32.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.0275—Continued



8
.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090 .0095 .0100
T
10
18.60
19.43 20.22
20.98 21.72
22.43 23.12
23.79
24.45 25.08
11
19.82
20.70 21.55
22.36 23.15
23.91
24.64
25.36
26.05
26.73
12
21.00
21.94
22.83
23.70 | 24.53
25.33
26. 11
26.87
27.61
28.32
13
22.16
23. 14
24.09
25.00 25.87
26.72
27.54
28.34 29.12
29.88
14
23.28
24. 31
25.31
26.26 27. 18
28.08
28.94
29.78 | 30. 59
31.39
15
24.37
25.46
26.50
26.50 27.50 | 28.46
29.40
30.30
31.18
32.03
32.87
16
25.45 26.58
27.66 28.71 29.71
30.69
31.63
32. 55
33. 44
34.31
17
26.50
27.67 28.80
29.89 | 30.94
31.95
32.94
33.89
34.82
35.73
18
27.52
28.75 29.92 31.05 | 32.14
33. 20
34. 22
35. 21
36. 17
37.11
19 28.53
29.80 | 31.02 | 32.19
33. 32
34. 41
35.47
36.50
37.50
38.48
20
29.53
21
30.50
30.84 32.10 33.31
31.86 33. 16 34.41
34.48
35.61
36.71
37.77 38.81
39.81
35.62 36.79
37.92
39.02
40.09
41.13
222
22
31.46
32.86 34.21
35.50 36.74
37.95
39. 12
40.25
41.35
42.43
23
32. 41
33.85 35.23
36.56
37.85
39.09
40.29
41.46
42.60
43.70
24
33.34
34.83
36.25
37.62
38. 94
40. 21
41.45
42.65 43.82
44.96
25
34.26
35.79
37.25
38.65
40.01
41.32
42.59 43.83 45.03
46.20
26
35. 17
36.73
38. 23
39.68
41.07
42.42 43.72
44.99
46.22
47.42
27
36.07
37.67
39. 21
40.69
42.12
43.50
44.84
46. 14
47.40
48.63
28
36.95
38.60
40.17
41.69
43. 15
44. 57
45.94
47.27
48.56
49.83
29
37.83
39.51 41.12
42.67
44. 17
45.62
47.02
48.39
49.71 51.01
30
38.69
40. 41
42.06 | 43.65 | 45. 18
46.66
48. 10
49.49
50.85 52.17
31
39.55
41.31
42.99 44.61
46. 18
47.69
49. 16
50.59
51.97 53.32
32 40.39 42.19
43.91
45. 57
47.17
48.72
50. 21
51.67
53.09
54.47
33 41.23 43.06
44.82
46.51
48. 15
49.72
51.26
52.74
54. 19
55.59
34 42.06
43.93
45.72
47.45
49.11
50.72 52.29 53.80
55.28
56.71
35
42.88
44.79
46. 61
48.37
50.07
51.71 53.31
54.85 56.35
57.82
36 43.69 45.63
47.50
49. 29
37 44.50
46.48
48.37
50.20
38 45.30
47.31
49.24
51.10
52.89
39
46.09
48. 14
50.10
51.99
53.82
51.02 52.69 54.32 55.89
51.96 53.67 55.32 56.92
54.63 56.31 57.94 59.53
55.58 57.29 58.95
57.42
58.91
58.48
60.00
61.08
60.57
62. 14
42
44
40 46.87
41 47.65 49.77 51.80 53.76
48.42 50.57 52.64 54.63
43 49.19 51.37 53.47 55.49
49.95 52.17
48.96 50.95
52.88
54.73
56. 53
58.27
59.96
61.60
63.20
55. 64
57.47
59.24
60.95 62.62
64.25
56.54
58.40
60. 20
61.94 63.64
65.29
57.44 59.32
61.15
62.92 64.64
66.32
54.30 56.35
58.32 60.24
62.09
63.89 65.64
67.35
45
50.70
52.95
55. 12
46 51.45
53.74
55.93
57.20 59.21 61.15
58.04 60.08 62.05
63.03
64.86 66.63 68.36
63.96
65.81
67.62 69.37
47 52.19
54. 51
56.74 58.88 60.95 62.95 64.88
66.76
68.59
70.37
48
52.93
55. 28
57.54 59.71 61.81
63.83
65.80
67.71
69. 56
71.37
49
53.66
56.05
58.34
60.54 62. 66
64.72
66. 71
68.64
70.53
72.36
50 54.39
71.48 73.34
56.81 59.13 61.36 63. 51
69.58
65.60
67.61
HYDRAULIC TABLES
425
Table 32.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 72/31/2
n
n=.0275—Continued

8
.01
.02
.03
04
•
.05
06
•
· 07
08
· 09
.10
13
16
19
HERRE DREDD
10
25.08 35.47 43.44 50. 16
56.08
61.44| 66.36
70.94
75. 24
79.31
11
26.73
37.80 46.29
53.45
59.76
65.47 70.71
75.59
80.18
84. 52
12
28. 32
40.05 49.06
56.65
63.33
69.38
74.94] 80.11
84.97
89.57
29.88
42. 25
51.75
59.75
66.80
73. 18
79.04
84.50
89.63
94. 47
14
31. 39
44.39
54.37
62.78
70. 19
76.89
83.05
88.78
94. 17
99. 26
15
32.87
46.48
56.93
65.73
73.49
80.50
86.96
92.96
98.60 103.93
34.31
48.52
59.43
68. 62
76.72
84.04
90.78
97.05 102.93 108.50
17
35.73
50. 52
61.88
71.45
79.89
87.51
94.52
101.05
107. 18
112.98
18 37. 11
52.49
64. 28
74.23
82.99 90.91
98. 19
104. 97
111. 34
117.36
38.48
54.41
66.64
76.95
86.03
94.25 101.80
108. 83
115. 43
121.67
20
39.81
56.31
68.96
79. 63
89.03
97.52 105.34
112. 61|
119.44
125. 90
21
41. 13
58.17
71.24
82. 26
91.97 100.75 108. 82
116. 34
123. 39
130. 07
22
42. 43
60.00
73.48
84.85|
94.87 103.92 112, 25
120.00
127. 28
134, 16
23
40
41
46
47
3* 22582 87881 38588 ***** 49582 8
43.70
61.80
75.69
87.40
97.72 107.05
115. 63
123. 61
131. 11
138. 20
24
44.96
63.58
77.87
89.92
100. 53
110. 13
118. 95
127. 17
134. 88
142. 18
46. 20
65.34
80. 02
80.02
92.40
103. 31
113. 17
122. 23
130. 67
130.67
138. 60
146. 10
26
47.42
67.07
82. 14
94.85 106.04
116. 17
125. 47
134. 14
142. 27
149. 97
27
48.63
68.78
84.23
97.27 108.75
119. 13
128. 67
137. 55
145. 90
153. 79
49.83
70.46
86.30
99.65| 111. 41|
122. 05
131.83
140.93
149. 48
157.56
29
51. 01
72. 13
88.34 102. 01
114. 05
124. 94
134. 95
144. 27
153. 02
161, 29
30
52. 17
73.78 90.36 104. 34
116. 66
127.79
138.03
147.56
156. 51
164.98
31
53.32
75.41
92.36 106.65
119. 24
130.62
141.08 150.82
159.97
168. 63
32
54.47
77.03
94.34 108.93
121. 79
133. 41
144. 10
154. 05
163. 40
172.23
33
55. 59
78.62
96. 29
111. 19
124. 31
136. 18
147.09
157. 24
166. 78
175. 80
34
56. 71
80.20
98.23
113.42
126. 81
138. 91
150. 04
160. 40
170. 13
179.34
57.82
81.77 100. 14
115. 64
129. 29
141.63
152. 97
163. 54
173. 45
182.84
36
58.91
83.32 102.04 117.83
131. 74
144. 31
155.87
166. 63
176.74
186.30
37
60.00
84.85 103.92 120.00
134. 16
146. 97
158. 75
169. 71
180.00
189. 74
61. 08
86.38 105.79 122. 15
136. 57
149. 61
161. 59
172.75
183. 23
193. 14
39
62. 14
87.88 107.64 124. 29
138.96
152. 22
164. 42
175. 77
186. 43
196. 52
63.20
89.38 109.47 126.40
141.32
154.81
167. 21
178.76
189.60
199.86
64. 25
90.86 111.28 128. 50
143. 67
157.38
169.99
181.73
192. 75
203. 18
42
65. 29
92.34 113.09 130. 58
145. 99
159. 93
172.74
184. 67
195. 87
206.47
43
66. 32
93.80 114.88 132.65
148. 30
162. 46
175. 47
187.59
198. 97
209.73
44
67.35
95.24 116.65 134. 69
150. 59
164.97
178. 18
190.49
202.04 212.97
68.36
96.68 118.41 136. 73
152. 87
167.46
180.87
193. 36
205. 09
216, 19
69.37 98.11 120.16 138. 75
155. 12
169. 93
183. 54
196. 22
208. 12
219. 38
70.37
99.53 121.89 140. 75
157.36
172.38
186. 19
199. 05
211. 12
222. 55
71.37 100.93 123. 62
142. 74
159. 59
174. 82
188. 83
201. 86
214. 11
225. 69
72.36 102.33 125. 33|
144. 71|
161.80
177.24| 191.44
204.66| 217.07 228.81
50
73.34 103.72 127.03 146.68 163.99 179.64| 194.04| 207.43|| 220.02| 231.92
563189° —44. -28
426
HYDRAULIC TABLES
Table 33.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
r2/31/2
n=.030



.00005
.00010 .00015 .00020.00025 .00030.00035 .00040 .00045
.00025.00030 | | | .00050
00035 00040
T
0.2
0.12
0.17 0.21
0.24 0.27 0.29 0.32
0.34 0.36
0.38
0.4
. 19
.27
.33
.38
.43
.47
.50
.54
.57
.60
0.6
.25
.35
.43
.50
.56
.61
.66
.70
.75
.7
0.8
.30
.43
.52
.60
.67
.74
.80
.85
.91
.9.
1.0
1.2
1.4
1.6
1,8
024∞ ∞
.35
.50
.61
.70
.78
.86
.93
.99
1.05
1.11
.40
.56
.69
.79
.88
.97
1.05
1.12
1. 19
1.2
.44
.62
.76
.88
.98
1.07
1.16
1. 24
1.31
1.39
.48
.68
.83
.96
1.07
1. 17
1.27
1.36
1.44
1.5
.52
.73
.90
1.04
1. 16
1.27
1.37
1.47
1.55
1.64
2.0
56
•
.79
.96
1.11
1.24
1.36
1.47
1.57
1.67
1.7
2.2
.59
.84
1.03
1.18
1. 32
1.45
1.57
1.68
1.78
1.81
2.4
.63
.89
1.09
1.26
1.40
1.54
1.66
1.78
1.88
1.99
2.6
.66
.94
1.15
1.32
1.48
1.62 1.75
1.87
1.99
2.0
2.8
.70
.98
1.21
1.39
1.56
1.70
1.84
1.97
2.09
2.2
3.0
.73
1.03
1.26
1.46
1.63
1.78
1.93
2.06
2. 19
2.3
3.2
.76
1.08
1.32
1.52
1.70
1.86
2.01
2. 15
2.28
2.41
3.4
.79
1. 12
1.37
1.58 1.77
1.94
2. 10
2.24
2.38
2.5
3.6
.82
1.16
1.42
1.65
1.84
2.02
2. 18
2.33
2.47
2.6
3.8
.85
1.21
1.48
1.71
1.91
2.09
2.26
2.41
2.56
2.7
4.0
.88
1.25
1.53
1.77
1.97
2. 16
2.34
2.50
2.65
2.7
4.2
.91
1.29
1.58
1.82
2.04
2.23
2. 41
2.58
2.74
2.8
4.4
.94
1.33
1.63 1.88
2.10
2.30
2.49
2.66
2.82
2.91
4.6
.97
1.37
1.68
1.94
2. 17
2.37
2.56
2.74 2.91
3.0
4.8
1.00
1.41
1.73
1.99
2. 23
2.44
2.64
2.82
2.99
3. 1.
5.0
1.02
1.45
1.77
2.05
2.29
2.51
2.71
2.90
3.07
3.2
5.2
1.05
1.49
1.82
2.10
2.35
2.58
2.78
2.97
3. 15
3. 31
5.4
1.08
1.52
1.87
2.16
2.41
2.64
2.85
3.05
3. 23
3.41
5.6
1.10
1.56
1.91
2.21
2.47
2.71
2.92
3. 12
3.31
3.49
5.8
1. 13
1.60
1.96
2. 26
2. 53
2.77
2.99
3.20
3.39
3. 5
6.0
1.16
1.64
2.00
2.31
2.59
2.83
3.06
3.27
3.47
3.6
6.2
1.18
1.67
2.05
2.36
2. 64
2.90
3. 13
3.34
3.55
3.74
6.4 1.21
1.71
2.09
2.41
2.70
2.96
3. 19
3.41 3.62 3.82
6.6 1.23
1.74
2. 13
2.46
2.76
3.02
3.26
3.49 3.70
3.9
6.8
1.26
1.78
2. 18
2. 51
2.81
3.08
3.33
3.56 3.77 3.98
7.0 1.28
1.81
2.22
2.56
2.87
3. 14
3.39
3.63 3.85
4.0
7.5
1.34
1.90
2.32
2.68
3.00
3.29
3.55
3.80 4.03
4. 24
8.0
1.40
1.98
2.43
2.80
3. 13
3.43
3.71
3.96
4.20
4. 41
8.5
1.46
2.06
2. 53
2.92
3.26
3. 57
3.86
4. 13
4.38
4.61
9.0
1.52
2. 14
2.62
3.03
3.39
3.71
4.01
4.29
4.55
4.79
9.5
4.97
1.57
4.71
2. 22 2.72
4.44
3. 14
4. 16
3.51
3.85
HYDRAULIC TABLES
427
Table 33.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -2/31/2
n=.030—Continued

00070
.00065.00070.00075.00080.00085.00090.00095 | .00100
.00055
.00060
T
0.2
0.40
0.41 0.43
0.45
0.46
0.48
0.49 0.51
0.52
0.54
0.4
.63
.66 .69
.71
.74
.76
.78
.81
.83
.85
0.6
.83
.86
.90
.93
.97
1.00
1.03
1.06
1.09
1. 11
0.8
1.00
1.05
1.09
1. 13
1. 17
1. 21
1. 24
1.28
1.32
1.35
1.0
1.2
1.4
1.6
1.8
0246 00
1.16
1.21
1.26
1.31
1.36
1.40
1. 44
1.49
1.53
1.57
1.31
1.37
1.43
1.48
1.53
1.58
1.63
1.68
1.72
1.77
1. 45
1.52
1.58
1.64
1.70
1.75
1.81
1.86
1.91
1.96
1. 59
1.66
1.73
1.79
1.86
1.92
1.98
2.03
2.09
2. 14
1.72
1.80
1.87
1.94
2. 01
2. 07
2. 14
2. 20
2.26
2.32
2.0
1.84
1.93
2.00
2.08
2. 15
2. 22
2. 29
2.36
2. 42
2.49
2.2
1.96
2. 05
2. 14
2. 22
2. 29
2.37
2. 44
2.51
2.58
2. 65
2.4
2.08
2. 17
2.26
2.35
2.43
2. 51
2.59
2.66
2.74
2.81
2.6
2.20
2. 29
2.39
2. 48
2.56
2. 65
2.73
2.81
2.89
2.96
2.8
2.31
2. 41
2.51
2.60
2.69
2.78
2.87
2.95
3.03
3. 11
ei ei ei ei ei
3.0
3.2
3.4
3.8
0246 00
2.42
2. 52
2.63
2.73
2.82
2.91
3.00
3.09
3. 18
3. 26
2.52
2. 63
2.74
2.85
2.95
3.04
3. 14
3. 23
3.32
3.40
2.63
3.6 2.73
2.74
2.86
2.96
3.07
3. 17
3.27
3.36
3.45
3. 54
2.85
2.97
3.08
3. 19
3.29
3.39
3.49
3. 59
3.68
2.83
2.95
3.08
3. 19
3.30
3. 41
3.52
3.62
3.72
3.81
4.0
2.93
3.06
3. 18
3.30
3.42
3. 53
3. 64
3.74
3.85
3.95
4.2
3.02
3. 16
3. 29
3. 41
3.53
3.65
3.76
3.87
3.97
4.08
4. 4
3. 12
3. 26
3.39
3.52
3. 64
3.76
3.88
3.99
4. 10
4. 21
4.6
3. 21
3.36
3.49
3.62
3.75
3.88
3.99
4. 11
4. 22
4.33
4.8
3.31
3.45
3.59 3.73
3.86
3.99
4. 11
4. 23
4. 34
4. 46
5,0
5.2
5.4
5.6
5.8
0246 00
3.40
3. 55
3.69
3.83
3.97
4. 10
4. 22
4. 35
4.46
4. 58
3.49
3. 64
3.79
3.93
4.07
4. 21
4.33
4. 46
4.58
4.70
3.58
3.73
3.89
4. 03
4. 18
4. 31
4. 44
4.57
4.70
4.82
3.66
3.83 3.98
4. 13
4. 28
4. 42
4.55
4. 69
4.81
4. 94
3.75
3.92
4.08
4. 23
4.38
4. 52
4.66
4.80
4.93
5.06
6.0
3.84
4. 01
4. 17
4. 33
4. 48
4. 63
4.77
4.91
5.04
5. 17
6.2 3.92
4.09
4. 26
4. 42
4.58
4.73
4.87
5. 02
5. 15
5. 29
6.4
4.00
4. 18
4.35
4. 52
4.68
4.83 4.98
5. 12
5. 26
5.40
6.6
4.09
4. 27
4. 44
4. 61
4.77
4.93
5.08
5. 23
5.37
5. 51
6.8
4. 17
4. 35
4.53
4.70
4.87
5.03
5. 18
5.33
5.48
5.62
7.0
4. 25
4. 44
4. 62
4.80
4.96
5. 13
5. 28
5. 44
5.59
5.73
7.5
4. 45
4. 65
4.84
5.02
5. 20
5.37
5.53
5. 69
5.85
6.00
8.0
4. 65
4.85
5.05
5. 24
5.43
5.60
5.78
5.94
6. 11
6. 27
8.5
4.84
5.05
5. 26
5. 46
5.65
5.84
6. 01
6. 19
6.36
6. 52
9.0
5.03
5. 25
5.46
5.67
5.87
6.06
6. 25
6. 43
6. 61
6.78
9.5
7.03
5. 21
6. 85
5. 44
6. 67
5.66
6. 48
5.88
6. 28
6.08
428
HYDRAULIC TABLES
Table 33.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 2/31/2
n
n=.030—Continued

.0010
.0015 .0020 .0025 .0030 .0035
.0040
.0045
.0050
0.2
0.54
0.66
0.76
0.85
0.93
1.00
1.07
1. 14
1.20
0.4
.85
1.04
1.20
1.34
1.47
1.59
1.70
1.80
1.90
0.6
1.11
1.36
1.58
1.76
1.93
2.08
2.23
2.36
2.49
0.8
1. 35
1.65
1.91
2. 13
2.34
2.53
2.70
2.86
3.02
1.0
1.57
1.92
2.22
2.48
2.71
2.93
3. 13
3.32
3. 50
1.2
1.77
2. 17
2.50
2.80
3.06
3. 31
3.54
3.75
3.96
1.4
1.96
2.40
2.77
3.10
3.40
3.67
3.92
4.16
4.38
1.6
2. 14
2.62
3.03 3.39
3.71
4.01
4. 29
4.55
4.79
1.8
2.32
2.84
3.28
3.66
4. 01
4.34
4. 64
4.92
5. 18
2.0
2.49
3.05
3.52
3.93
4.31
4.65
4.97
5. 27
5. 56
2.2
2. 65
3.25
3.75
4. 19
4. 59
4.96
5.30
5.62
5.92
2.4
2.81
3. 44
3.97
4.44
4.86
5.25
5.62
5.96
6. 28
2.6
2.96
3.63
4. 19
4.68
5. 13
5. 54
5.92
6. 28
6.62
2.8
3. 11
3.81
4.40
4.92
5.39
5.82
6. 22
6.60
6.96
3.0
3. 26
3.99
4. 61
5.15
5.64
6.10
6. 52
6.91
7.29
3.2
3.40
4. 17
4.81
5.38
5.89
6. 36
6.80
7.22
7.61
3.4
3. 54
4.34
5.01
5.60
6. 13
6. 63
7.08
7.51
7.92
3.6
3.68
4.51
5. 20
5.82
6.37
6.88
7.36
7.80
8. 23
3.8
3.81
4.67
5.39
6.03
6.61
7.14
7.63
8.09
8.53
4.0
3.95
4.83
5.58
6. 24
6.84
7.38
7.89
8.37
8.83
4.2
4.08
4.99
5.77
6.45
7.06
7.63
8.16
8.65
9. 12
4.4
4. 21
5. 15
5.95
6.65
7.28
7.87
8.41
8.92
9.40
4. 6
4. 33
5.31
6. 13
6.85
7.50
8. 11
8.66
9.19
9.69
4.8
4.46
5.46
6.30
7.05
7.72
8.34
8.91
9.46
9.97
5.0
4.58
5.61
6.48
7.24
7.93
8.57
9.16
9.72
10. 24
5.2 4.70
5.76
6. 65
7.43
8. 14
8.80
9.40
9.97
10. 51
5.4 4.82
5.90
6.82
7.62
8.35
9.02
9.64
10. 23
10.78
5.6
4.94
6.05
6.99
7.81
8.56
9.24
9.88
10.48
11.05
5.8
5.06
6. 19
7.15
8.00
8.76
9.46
10. 11
10.73
11. 31
6. 0
5. 17
6.33
7.31
8.18
8.96
9.68
10.34
10.97
11.57
6.2
5.29
6.47
7.48 8.36
9.16
9.89
10.57
11. 21
11.82
6.4
5.40
6.61
7.64
8.54
9.35
10. 10
10.80
11.45
12.07
6.6
5. 51
6.75 7.79
8.71
9.55
10.31
11.02
11.69
12.32
6.8
5.62
6.89
7.95
8.89
9.74
10. 52
11. 24
11.93
12.57
7.0
5.73
7.02
8. 11
9.06
9.93
10.72
11.46
12. 16
12.82
7.5
6.00
7.35
8.49 9.49
10.40
11. 23
12.00
12.73
13.42
8.0
6. 27
7.67
8.86
9.91
10.85
11.72
12.53
13.29
14.01
8.5
6. 52
7.99
9.23
10.32
11.30
12. 21
13.05 13.84
14.59
9.0
6.78
8.30
9.58 10.72
11.74
12.68
13.55
14.38
15. 15
9.5
15.71
7.03
14.90
8.61
14.05
9. 94 11. 11
13. 14
12. 17
HYDRAULIC TABLES
429
Table 33.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.030- Continued



.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090
.0095
.0100
0.2
1.26
1.31
1.37
1.42
1.47
1.52
1.56 1.61
1. 65
1.69
0.4
1.99
2.08
2. 17
2.25
2. 33
2. 41
2.48
2.55
2.62
2. 69
0.6
2. 61
2.73
2.84
2.95
3.05
3. 15
3. 25
3. 34
3.43
3.52
0.8
3. 17
3.31
3.44
3.57
3.70
3.82
3.94
4.05
4. 16
4. 27
1.0
3.67
3.84
3.99
4. 14
4. 29
4.43
4.57
4.70
4.83
4.95
1.2
4. 15
4.33
4. 51
4. 68
4.84
5.00
5. 16
5.31
5.45
5.59
1.4
4.60
4.80
5.00
5. 19
5.37
5.54
5.72
5.88 6.04
6. 20
1.6
5.03
5.25
5.46
5. 67
5.87
6.06
6. 25
6.43
6.60
6.78
1.8
5.44
5.68
5.91
6. 13
6. 35
6.56
6.76
6.95
7.14
7.33
2.0
5.83
6.09
6. 34
6.58
6.81
7.03
7.25
7.46
7.66
7.86
2.2
6. 21
6.49
6.76
7.01
7.26
7.49
7.72
7.95
8. 17
8.38
2.4
6.58
6.88
7.16
7.43
7.69
7.94
8. 19
8.42
8.65
8.88
2.6
6.95
7.25
7.55
7.84
8. 11
8.38
8.63
8.89
9. 13
9.37
2.8
7.30
7.62
7.93 8.23
8.52
8.80
9.07
9.34
9.59
9.84
3.0
7.64
7.98
8.31
8.62
8.92
9.22
9.50
9.77
10.04
10.30
3.2
7.98
8.33 8.67
9.00
9.32
9.62
9.92
10. 20
10.48
10.76
3.4 8.31 8.68
9.03 9.37
9.70
10.02
10.33
10.63
10.92
11.20
3.6 8.63 9.01
9.38 9.73
10.08
10.41
10.73
11.04
11. 34
11.63
3.8
8.95
9.34 9.72
10.09
10. 45
10.79
11. 12
11.44
11.76
12.06
4.0
9.26
9.67
10.06
10.44
10.81
11.16
11. 51
11.84
12.17
12. 48
4.2 9.56
9.99
10.40
10.79
11. 17
11. 53
11.89
12. 23
12. 57
12.89
4.4
9.86
10.30
10.72
11. 13
11.52
11.90
12. 26
12.62
12.96
13.30
4.6
10. 16
10. 61
11.05
11.46
11.86
12. 25
12.63
13.00
13.35
13.70
4.8
10.45
10.92
11.36
11.79
12. 21
12.61
12.99
13.37
13.74
14.09
5.0 10.74
11. 22
11. 68
12. 12
12. 54
12.95
13. 35
13.74
14. 12
14.48
5.2
11.03
11.52
11.99
12. 44
12.88
13.30
13.71
14. 10
14.49
14.87
5.4
11. 31
11.81
12.29
12.76
13.20
13. 64
14.06
14.46
14.86
15. 25
5.6
11.58
12. 10
12.59 13.07
13. 53
13.97
14. 40
14.82
15. 22
15.62
5.8
11.86
12.39
12.89 | 13. 38
13.85
14.30
14. 74
15. 17
15. 59
15.99
6.0
12. 13
12.67
13. 19
13. 68
14. 16
14. 63
15.08
15.52
15.94
16.36
6.2
12. 40
12.95
13.48
13.99
14.48
14.95
15. 41
15.86
16.29
16.72
6.4
12.66
13. 23
13. 77
14.29
14.79 15.27
15.74 16.20
16.64
17.07
6.6
12.93
13.50
14.05
14.58
15.09 15.59
16.07 16.53 16.99
17.43
6.8
13. 19
13.77
14. 33
14.87
15.40 15.90
16.39 16.87 17.33
17.78
7.0
13. 44
14.04
14. 61
15. 17
15.70
16. 21
16.71
17.20 17.67
18. 13
7.5
14.08
14.70
15.30
15.88
16. 44
16.98
17.50
18.00 18.50
18.98
8.0
14. 69
15.35
15.97
16.58
17.16
17.72
18. 27
18.80
19.31
19.81
8.5
15.30
15.98
16. 63
17.26 17.87
18.45
19.02 19.57
20. 11
20.63
9.0 15.89
16.60
17.28
17.93 18.56 19. 17
19.76 | 20.33
20.89
21.43
9.5
22.22
16. 48
21.66
17.21 17.91 18.59
20.48 21.08
19. 24
19.87
430
HYDRAULIC TABLES
Table 33.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.030—Continued

· 01
.02
.03
04
•
.05
.06
.07
899
.09
· 10
0.2
1.69
2.40
2.93
3.39
3.79
4. 15
4.48
4.79 5.08
0.4
2.69
3.80
4.66
5.38
6.01
6.59
7.11
7.61❘ 8.07
5.36
8.50
0.6
3.52
4.98
6.10 7.05
7.88
8.63
9.32
9.97 10.57
11. 14
0.8
4.27
6.04
7.39
8.54
9.54
10.46
11.29
12.07 12.81
13.50
1.0
4.95
7.01
8.58
9.91
11.08
12. 13
13. 11
14.01
14.86
15.66.
1.2
5.59
7.91
9.69
11. 19
12.51
13.70
14.80
15.82
16.79
17.69
1.4
6.20
8.77
10.74
12.40
13.86
15. 18
16. 40
17.53
18.60
19.60
1.6
6.78
9.58
11. 74
13. 55
15. 15
16.60
17.93
19. 17
20.33
21. 43
1.8
7.33
10.37
12.70
14.66
16.39
17.95
19.39
20.73
21.99
23. 18
2.0
7.86
11. 12
13.62
15. 73
17.58
19. 26
20.80
22. 24 | 23.59
24.86
2.2
8.38
11.85
14.51
16.76
18.74
20.52
22. 17
23.70
25. 14
26.50
2.4
8.88
12. 56
15.38
17.76
19.85
21.75
23.49
25. 11
26.64
28.08
2.6
9.37
13.25
16.22 18.73
20.94 22.94
24.78 26.49
28.10
29.62
2.8
9.84
13.92
17.04 19.68
22.00
24.10
26.03 | 27.83
29.52
31.12
3.0
10.30
14. 57
17.85
20.61
23.04
25. 24
27.26 29.14
30.91
32. 58
3.2
10.76
15. 21
18.63
21.51
24.05
26. 35
28.46
30.42
32. 27
34.01
3.4 11.20
15.84
19.40
22.40
25.04
27.43
29.63
31.68 | 33.60
35.42
3.6 11.63
16.45
20. 15
23.27
26.02
28.50
30.78
32.91 34.90
36.79
3.8 12.06
17.06
20.89
24. 12
26.97
29.55
31.91
34. 12 36. 19
38. 14
4. 0
12. 48
17.65
21.62
24.96
27.91
30.57
33.02
35.30 | 37.44
39.47
4.2
12.89
18. 24
22.33
25.79
28.83
31.58
34. 12
36.47 38.68
40.78
4.4
13.30
18. 81
23.04
26. 60
29.74
32.58
35. 19
37.62
39.90
42.06
4.6
13.70
19.38
23.73
27.40
30.64
33.56
36.25 38.75
41. 10
43.32
4.8 14.09
19.93
24. 41
28. 19
31.52
34.53
37.29 | 39.87
42.28
44. 57
5.0
14.48
20.48 25.09
28.97
32.39 35.48
38.32 | 40.97
43.45
45.80
5.2
14.87
21.03 25.75
29.73
33.24 36.42
39.34
42.05
44.60
47.01
5. 4
15.25
21.56 26.41
30.49
34.09
37.35
40.34
43. 12
45.74
48.21
5.6
15. 62
22.09 27.06
31. 24
34.93
38.26
41.33
44.18 46.86
49.40
5.8
15.99
22.61 27.70
31.98
35.75
39. 17
42.31
45.23 | 47.97
50.56
6.0
16.36
23. 13
28.33
32.71
36.57
40.06
43. 27
46.26
49.07
51.72
6.2 16.72
23.64
28.95
33.43
37.38
40.95
44. 23
47.28
50. 15
52.86
6.4
6.6 17.43
17.07
24. 15
29.57
34. 15
38. 18
41.82
45. 18
48. 29
51.22
53.99
24.65 | 30.19
34.86
38.97
42.69
46. 11
49.30
52.29
55. 11
6.8
17.78
25. 14
30.79
35.56
39.75
43.55
47.04
50.29
53.34
56.22
7.0
18. 13
25. 63
31.39 36.25
40.53
44.40 | 47.96
51.27
54.38
57.32
7.5
18.98
26.84
32.87 | 37.96
42. 44
46.49 50.21
53.68
56.94
60.02
8.0 19.81
28.02❘ 34.32 39.63
44.30
9.0
8.5 20.63
21.43
29.18 35.73 41.26
30.31 37.12 42.86
46. 13
47.92
48.53 52.42
50.53
54.58
52.50 56.70 60.62 | 64.30
56.04 59.44
62.66
58.35 61.89
65. 24
67.77
9.5
70.26
22, 22 31. 42 38. 48 44.44
54.42 | 58.78 | 62.84 | 66.66
49.68
HYDRAULIC TABLES
431
Table 33.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n=.030—Continued
n

8
.00005
.00015
.00010 .00015 .00020.00025.00030.00035 .00040.00045 00050
10
1.63
2.30
2.82 3.25 3.64
3.98
4.30
4.60
4.88
5. 14
11
1.73
2.45
3.00
3.46
3.87
4. 24
4.58
4.90
5.20
5.48
12
1.84
2.60
3.18
3.67
4.11
4.50
4.86
5. 19
5.51
5.81
13
1.94
2.74
3.35
3.87
4.33
4.74
5. 12
5.48
5.81
6. 12
14
2.03
2.88
3.52
4.07
4.55
4.98
5.38
5.75
6.10
6. 43
*==== 22222
15
2.13
3.01 3.69
4.26
4.76
5.22
5.64
6.03
6.39
6.74
16 2.22 3.15
3.85
4.45
4.97
5.45
5.88
6. 29
6.67
7.03
17 2.32
3.27
4.01
4.63
5. 18
5.67
6. 13
6.55
6.95
7.32
18 2.41
3.40
4. 17
4.81
5.38
5.89
6.36
6.80 7.22
7.61
19
2.49
3.53
4.32
4.99
5.58
6. 11
6.60
7.05 7.48
7.89
20
2.58
3.65
4.47
5. 16
5.77
6. 32
6.83
7.30
7.74
8.16
21
2.67 3.77
4.62
5.33
5.96
6.53
7.05 7.54 8.00
8.43
2.75 3.89
4.76
5.50
6. 15
6.74
7.28 7.78
8.25
8.70
23
2.83 4.01 4.91
5.67
6.33
6. 94
7.49
8.01 8.50
8.96
24
2.91
4.12
5.05
5.83
6.52
7.14
7.71
8.24
8.74
9.22
40
41
KARAR SH8** ***** *
25
2.99
4. 24
5. 19
5.99
6.70
7.34
7.92
8.47
8.98
9.47
26
3.07
4.35
5,32
6. 15
6.87
7.53
8. 13
8.69
9.22
9.72
27
3. 15
4.46
5.46
6.30
7.05
7.72
8.34
8.92
9.46
9.97
28
3.23
4.57 5.59
6.46
7.22
7.91
8.54
9. 13
9.69
10. 21
29
3.31
4.68 5.73 6.61
7.39
8.10
8.75
9.35
9.92
10. 45
3.38 4.78
5.86
6.76 7.56
8.28
8.95
9.56
10. 14
10.69
3.46
4.89
5.99
6.91 7.73
8.47
9. 14
9.78
10.37
10.93
3.53
4.99
6. 11
7.06
7.89
8.65
9.34
9.99
10.59
11. 16
3.60
5.10
6. 24
7.21
8.06
8.83
9.53
10.19
10.81
11.40
3.68
5. 20
6. 37
7.35
8.22
9.00
9.73
10.40
11.03
11.62
3.75 5.30
6.49
7.50
8.38
9. 18
9.92
10.60 11.24
11.85
3.82 5.40 6.61 7.64
8.54
9.35
10. 10
10.80 11.46 12.08
3.89 5.50 6.74 7.78
8.70
9.53
10.29
11.00
11.67
12.30
38
3.96
39
4.03
5.60 6.86 7.92 8.85
5.70 6.98 8.06
9.70
10. 47
11.20 11.88
12.52
9.01
9.87
10.66
11.39
12.08
12.74
4.10
5.79 7.10 8.19
9.16 10.03
10.84
11.59
12. 29
12.95
4.16
5.89 7.21 8.33
9.31 10.20
11.02
11.78
12.49
13. 17
42
4. 23
5.98
7.33 8.46
9.46 10.37
11.20
11.97
12.70
13. 38
43
4.30
6.08
7.45 8.60
9.61 10.53
11.37
12. 16
12.90
13. 59
44
4. 37
6. 17
7.56 8.73
9.76
10.69
11.55
12.35
13.10
13.80
45
4.43
6. 27
7.68 8.86 9.91 10.85
11. 72 | 12. 53
13.29
14.01
46
4.50
6.36
7.79 8.99
10.05
11.01
11.90 12.72
13.49
14. 22
47
4.56
6.45
7.90
9.12 10. 20
11. 17
12. 07
12.90
13.68
14.42
48
4.63
6. 54
8.01
9.25
10.34
11. 33
12. 24
13.08
13.88
14.63
49
4.69
6.63
8. 12
9.38
10.49
11.49
12.41
13. 27
14.07
14.83
50 4.75
15.03
6.72
14. 26
8.23
13.45
9.51
12.58
10.63
11.64
432
HYDRAULIC TABLES
Table 33.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.030
.030-Continued


.00055
.00060.00065 | .00070 | .00075.00080 | .00085 | .00090.00095 | .00100
g
10
5.39
5.63 5.86 6.08 6.30
6.50
6.70 6.90 7.09
7.27
11
5.75
6.00
6.25
6.48
6.71
6. 93
7.14
7.35
7.55
7.75
12
6.09
6.36
6.62
6.87
7.11
7.34
7.57
7.79
8.00
8. 21
13
6. 42
6.71
6.98
7.25
7.50
7.75
7.98
8. 22
8.44
8.66
14
6.75
7.05 7.34
7.61
7.88
8.14
8.39
8.63
8.87
9.10
15
7.07
7.38
7.68
7.97
8.25
8.52
8.78
9.04
9.29
9.53
16
7.38
7.70
8.02
8.32
8.61
8.90
9.17
9.44
9.69 9.95
17
7.68
8.02
8.35
8.66
8.97
9.26
9.55
9.82
10.09
10.36
18
7.98
8.33
8.67
9.00
9.32
9.62
9.92
10. 21
10.49 10.76
19
8.27
8.64
8.99
9.33
9.66
9.98
10.28
10.58
10.87
11.15
20
8.56
8.94
9.30
9.66
9.99
10.32 10.64
10.95
11.25
11.54
21
8.84
9.24
9.61
9.98
10.33 10.66
10.99
11.31
11.62
11.92
22
9.12
9.53
9.92
10.29
10.65
11.00
11.34 11.67 11.99
12.30
23
9.40
9.81
10. 21
10.60
10.97
11.33 11.68
12.02 12.35
12.67
24
9.67
10. 10
10. 51
10.90
11.29
11.66
12.02
•
12.36
12.70
13.03
2220
25
9.93
10.37
10.80
11.20
11.60
11.98
12.35
12. 71
13.05
13. 39
26
10. 20
10.65
11.08
11.50
11 91
12.30
12.67
13.04
13.40
13.75
27
10.45
10.92
11.37
11.79
12. 21
12.61
13.00
13.37
13.74
14. 10
28
10. 71
11. 19
11.64
12.08
12.51
12.92
13.32
13.70
14.08
14. 44
29
10.97
11.45
11.92
12.37
12.80
13.22
13.63
14.03
14. 41
14.79
30 11.22
11.71 12.19
12.65
13.10 13.53
13.94
14.35
14.74
15. 12
31 11.46
11.97 12.46 12.93
13.39
13.83
14. 25
14.66 15.07
15.46
32 11.71
12.23 12.73
13.21
13.67
14.12
14.56
14.98
15.39
15.79
33 11.95
12.48 12.99 13.48
13.96
14. 41
14.86
15.29 15.71
16. 12
34 12.19
12.73 13.25
13.75
14.24
14.70
15. 16
15.60 16.02
16.44
35
12. 43
12.98 13.51
14.02
14.51
14.99
15.45
15.90 16.34
16.76
36
12.67
13.23 13.77
14.29
14.79
15. 27
15.74
16.20 16.65
17.08
37
12.90
13.47 14.02
14. 55
15.06
15.56
16.04
16.50 16.95
17.39
38
13.13
13.71 14.27
14.81
15.33
15.84
16.32 16.80
17.26
17.70
39
13.36
13.95 14.52
15.07
15.60
16. 11
16.61 17.09
17.56
18. 01
40 13.59
14. 19
14.77 15.33
15.87
16.39
16.89 17.38 17.86
18.32
41 13.81
14. 43
15.02
15.58
16. 13
16.66
17.17
17.67 18.15 18.62
42
14.04
14.66
15.26 15.83
16.39
16.93
17.45
17.95
18.45
18.93
43 14.26
14.89 15.50 16.09
16. 65
17.20
17.72
18. 24
18.74
19.23.4
44 14.48
15.12 15.74 16.33
16.91
17.46
18.00
18.52 | 19.03
19.52
45
14.70
15.35 15.98 16.58
17.16
17.72
18.27
18.80 19.32
19.82
46
14.91
15.58 16.21 16.82
17.42
17.99
18. 54
19.08 19.60
20.11
47
15. 13
15.80 16.45
17.07
17.67
18.25
18.81
19.35
19.88
20.40
48
15. 34
16.03 16.68
17.31
17.92
18.50
19.07 19.63
20.16
20.69
49
15.56
16. 25 16.91
17.55
18. 16
18.76
19.34 19.90
20.44
20.97
50 15.77
21.26
16. 47
20.72
17.14
19.60 20.17
17.79
19.01
18.41
HYDRAULIC TABLES
433
Table 33.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n= =.030—Continued



8
.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
T
37
39
40
FERRI 19=02 222** ***** ***** ***88 9:
7.27
8.90
10.28
11.50
12.59
13.60
14. 54
15. 42
16. 26
11
7.75
9.49
10.96
12.25
13. 42
14.49
15. 49
16.43
17.32
12
8. 21
10.06
11. 61
12.98
14.22
15.36
16.42
17.42
18. 36
13
8.66
10. 61
12. 25
13.69
15.00
16.20
17.32
18.37
19.36
14
9.10
11. 14
12.87
14.39
15.76
17.02
18.20
19.30
20.35
9.53
11.67
13. 47
15.06
16.50
17.82
19.05
20.21
21.30
16
9.95
12. 18
14.07
15.73
17.23
18. 61
19.89
21.10
22. 24
17
10.36
12.68
14.65
16. 37
17.94
19.37
20.71
21.97
23.16
18
10.76
13. 18
15. 21
17.01
18.63
20.13
21. 52
22.82
24.06
11. 15
13.66
15.77
17.63 19.32
20.87
22. 31
23.66
24.94
20 11.54
14. 14
16. 32
18.25 19.99
21.59
23.08
24.48
25.81
21
11.92
14.60
16.86
18.85
20.65
22. 31
23.85
25.29
26.66
12.30
15.06
17.39
19.45 21.30
23.01
24.60
26.09
27.50
23
12.67
15. 52
17.92
20.03
21.94
23.70
25.34
26.87
28.33
24 13.03
15.96
18. 43
20.61
22.57
24.38
26. 07
27.65
29.14
25
13. 39
16.40
18. 94
21.18
23.20
25.05
26.78
28. 41
29.95
26
13.75
16.84
19.44
21.74
23.81
25.72
27.49
29.16
30.74
27 14.10
17.27 19.94 22.29
24.42
26. 37
28. 19
29.91
31.52
29 14.44 17.69 20.43
22.84
25.02
27.02
28.89
30.64
32.30
29
14.79 18.11 20.91
23.38
25.61
27.66
29.57
31.36
33.06
30 15.12
18.52 21.39
23.91
26. 19
28.29
30.25
32.08
33.82
31 15.46 18.93 21.86
24. 44
26.77
28.92
30.91
32.79
34.56
32
15.79 19.34 22.33
24.96
27.35
29.54
31.58
33.49
35.30
33
16.12
19.74 22.79
25.48
27.91
30.15
32. 23
34.19
36.04
34
16. 44
20.13
23.25 25.99
28.47
30.76
32.88
34.87
36.76
35 16.76
20.53
23.70
26.50
29.03
31.36
33. 52
35.55
37.48
36 17.08 20.92
24. 15
27.00
29.58
31.95
34. 16
36. 23
38. 19
17.39 21.30
24.60
27,50
30.12
32.54
34.79
36.90
38.89
38 17.70 21.68
25.04 27.99 30.67
33.12
35. 41
37.56
39.59
18.01
22.06 25.48 28.48
31.20
33.70
36.03
38. 21
40.28
18.32
22.44 25.91 28.97
31.73
34. 27
36.64
38.86
40.97
41 18.62
22.81 26.34 29.45
32,26
34.84
37.25
39.51
41.65
42 18.93
43 19.23
44
19.52
23. 18
23.55 27.19 30.40
23.91 27.61
30.87 33.81
26.77 29.92
32.78
35. 41
37.85
40.15
42.32
33.30
35.97
38.45
40.78
42.99
36.52
39.04 41.41
43.65
45
19.82
46
20. 11
47
20.40
24. 27 28.03 31.33
24.63 28.44 31.80
24.98 28.85 32.26
34.32 37.07
39.63 42.04
44.31
34.83
37.62
40.22
42.66
44.97
35. 33
38. 16
40.80
43.27
45.62
48
20.69
25.34 29.26
32.71
35.83
38.70
41.38
43.89
46. 26
49
20.97
25.69 29.66
33.16 36.33
39. 24
41.95
44.49
46.90
50
47.54
21.26
45. 10
26.04 30.06
42.52
33.61
39.77
36.82
434
HYDRAULIC TABLES
Table 33.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.030—Continued




♡
.0055 .0060 .0065 .0070 .0075 .0080
.0085 .0090 .0095
.0100
AIRII 49202 2*
10
17.05
17.81 18.54 19.24
19.91
20.56
21.20
21.81
22.41 22.99
11
18. 17
18.98
19.75
20.50
21.22
21.91
22.59
23. 24
23.88 24.50
12
19.25
20. 11
20.93
21.72
22.48
23. 22
23.94
24.63
25.31
25.96
13
20.31
21. 21
22.08
22.91
23.72 | 24.49
25.25
25.98 26.69
27.39
14
21.34
22.29
23.20
24.07
24.92
25.74 26.53
27.30
28.04
28.77
15 22.34
23. 34
24. 29
25. 21
26.09
26.95
27.78
28.58
29.36
30. 13
16
23.33
24. 36
25.36
26.31
27.24
28.13
29.00 29.84
30.66
31.45
17
24.29
25.37
26.40 27.40
28. 36
28.36
29.29
30.19
31.07
31.92
32.75
18 25. 23
26. 35
27.43
28.46
29.46
30.43
31.37
32. 28
33. 16
34.02
19
26. 16
27.32 | 28.44
29.51
30.54 | 31.55
32.52
33.46
34.38
35.27
20
27.07
28.27 29.42
30. 54
30.54
31.61
31.61
32.64
33.65
34.62
35.57 36.50
21 27.96 29.20 30.40
31.54
32.65
33.72
34.76
35.77
36.75
37.70
23
22 28.84 30.12
29.71 31.03
24 30.56
31.35
32. 54
33.68 34.78
35.86
36.89
37.91
38.89
32.30
33.52
34.69 | 35.83
36.93
38.00
39.05
40.06
31.92 33. 23
34.48
35.69 36.86
38.00
39. 10
40.17
41.21
25
26
27
ROKOR S**** **
31.41
32.80 34.14 35.43
36.68
37.88
39.05
40.18
41.28
42.35
32. 24
33.67 | 35.05
36.37
37.65
38.88
40.08
41.24
42.37
43.47
33.06
28 33.87
34.53 35.94
37.30
38.61
39.87 41.10
42.29
43. 45
44.58
35. 38
36.82 38.21
39.55
40.85 | 42. 11
43.33
44. 52
45.67
29
34.67
36.22
37.70 | 39.12
40.49
41.82
43. 11
44.36
45. 57
46.76
30 35.47 37.04 38.56 40.01
31 36.25 37.86 39.41 40.90
32 37.03
41.42
42.78
44.09
45.37
46.61
47.82
42.33
43.72
43. 72
45.07
46.37
47.64
48.88
33 37.79
34
38.55
38.67 | 40.25 | 41.77
39.47 41.09 42.64
40.27 | 41.91 | 43. 49 |
43. 24
44.66
46.03
47.36 48.66
49.93
44. 13 |
45. 58
46.98
48.35 49.67
50.96
45.02 46.50
47.93
49.32 50.67
51.99
35
39.31 41.05 42.73
36
40.05
37 40.79
38 41.52
41.83 43.54
42.60 44.34
43. 37 45. 14
44. 34
45. 18
46.02 | 47.63
45.90 | 47.40
46.77
48.86 50.28
51.66 53.00
48.30
49.79
51.23
52.64 54.00
49. 19
50.71
52. 18
53.61 55.00
46.84 48.49
50.08
51.62
53. 11
54.57
55.99
39
42.25
44. 12❘ 45.93
47.66| 49.33
50.95
52.52
54. 04
55.52
56.96
40
42.97
44.88 46.71
48.47 50.17
51.82
53.41
54.96 56.47
57.93
41 43.68
45.62 47.48
49.28 51.01
52.68
54.30
55.87 57.40
58.90
42 44.39
46.36 48.25 50.07 51.83
53.53
55. 18
56.78 58.33
59.85
43 45.09
44
45.78
47.09 49.02 50.87 52.65
47.82 49.77 51.65 53.46
54.38
56.05
57.68
59.26
60.80
55.22❘ 56.92
58.57
60. 17
61.74
45
46
46.48 48.54 50.52
47.16 49.26 51.27
47 47.84 49.97 52.01
48 48.52 50.68 52.75 54.74 56.66
49 49.19 51.38 53.48 55.49 57.44
52.43
53.20
54, 27
56.05 57.78
59.45 61.08
62.67
55.07
53.97 55.87
56.88
57.70 59.48 61.20
58.63 60.33 61.98
63.59
62.88
64.51
58.52 | 60.32
62.06
63.77
65.42
59.33
61. 15
62.92
64. 65
66.33
50 49.86 52.07 54.20 56.25
67.23
58. 22
65.52
60. 13
63.78
61.98
HYDRAULIC TABLES
435
Table 33.--Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.030—Continued

.03.04.05
8
.01
.02
.06
.0%
.08
.09
.10
T
27
28
29
30
31
32
33
35
36
37
38
39
40
45
46
48
50
CERRE 42002 222** ***** AM*** ***** GERGE 49702 2
22.99
32.51
39.82
45.98
51.41 56.32 60.83
65. 03
68.97 72.70
11
24.50
34.65
42. 43
49.00
54.78 60.01 64.82|
69.30
73.50 77.47
12
25.96
36.72
44.97
51.93
58.05
63.60
68.69
73.43 77.89 82.10
13
27.39
38.73 47.43 54.77
61.24
67. 08
72.46
77.46 82.16 86.60
14
28.77
40.69
49.84
57.55
64.34
70.48
76. 13
81.38
86.32 90.99
15
30. 13
42. 61
52.18
60.25
67.37
73.80
79.71
85. 21
90.38
95.27
16
31.45
44. 48
54.48
62.90
70.33
77.04
83. 21
88.96
94.36 99.46
17 32.75
46.31
56.72
65.50
73. 23
80. 22
86.65
92.63
98.25 103. 56
18
34.02
48. 11
58.93 68.04
76.07
83.33
90.01
96. 23 102.06 107.58
19
35. 27
49.88
61.09
70.54
78.87
86.39
93.31
99.76 105.81 111.53
20
36.50
51. 61
63. 21
72.99
81.61
89.40
96.56 103.23
109. 49
115. 41
21
37.70
53.32
65.30
75.41
84.31
92.35 99.75 106. 64
113. 11|
119. 23
38.89
55.00
67.36
77.78 86.96
95. 26
102.90 110.00
116.67
122.98
23
40.06
56. 65
69.39
80.12
80.12
89.58
98. 13
105.99
113. 31|
120.18
126. 68
24
41. 21
58. 28
71.38
82.43 92.16
100.95
109.04
116.57 123. 64
130.33
25
42.35
59.89
73.35 84.70
94.70 103.74
112. 05
119.79 127.05 133. 92
26
43. 47
61. 48
75.30 86.94
97.21
106. 49
115. 02
122.96 130.42 137.47
44.58
63.05 77.21
89.16
99.68
109. 20|
117.95
126.09 133.74 140.97
45. 67
64.59
79.11 91.35 102. 13
111.88
120.84
129. 19| 137.02
144. 43
46.76
66.12 80.98
93.51 104.55
114. 53|
123. 70
132. 24
140. 27
147.85
47.82
67.63
82.83 95.65 106. 94
117. 14
126. 53
135. 27
143. 47
151. 23
48.88
69. 13
84.66
97.76 109.30
119. 73]
129.33
138. 26|
146. 64
154.57
49.93
70.61
86.48 99.85
111. 64
122. 29
132.09
141. 21|
149. 78
157.88
50.96 72.07
88.27 101.92 113. 95
124. 83
134. 83
144. 14
152.88
161. 15
34
51.99 73.52 90.04 103.97
116. 24
127.34
137.54
147.04
155.96
164. 39
53.00
74.95 91.80 106.00
118. 51
129.82
140. 22
149. 91
159.00 167.60
54.00
76.37 93.54 108. 01
120.76
132. 28
142.88
152.75
162.01| 170.78
55.00
77.78
95.26 110.00 122.98
134.72
145. 52
155. 56
165.00 173.93
55.99
79. 18
96.97 111.97 125. 19
137. 14
148. 13
158. 35
167.96
177. 05
56.96
80.56
98.67 113.93 127.38
139. 53
150.71
161. 12
170.89
180. 14
57.93
81.93 100.35 115.87
129.55
141.91
153. 28
163.86
173.80
183. 21
41 58.90
83. 29 102.01 117. 79
131. 70
144. 27
155. 82
166. 58
176. 69
186. 25
42 59.85
84.64 103.66 119. 70
133.83
146.60
158.35
169. 28)
179. 55
189.26
43 60.80 85.98 105.30 121. 59
135. 94
148.92
160.85
171.96
182.39
192. 25
44 61.74 87.31 106.93 123. 47
138.04
151. 22
163. 34
174. 61
185. 21
195. 22
62.67
88.62 108.54
125. 33
140. 13
153. 50
165.80
177. 25
188.00
198. 17
63.59
89.93 110. 14
127. 18
142. 20|
155.77
168. 25
179.87
190.78
201. 10
64. 51
65.42
91. 23 111.74 129. 02
144. 25
158. 02
170. 68
182. 46
193. 53 204.00
92.52 113.31 130.84
146. 29
160. 25
173.09
185.04
196. 27❘ 206.88
66. 33
93.80 114.88 132. 66
148. 31
162. 47
175. 49 187.60 198.98 209.75
67.23
95.07 116. 44 134. 45 150.32 164.67 177.87 190.15 201.68 212.59
44
436
HYDRAULIC TABLES
Table 34.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.035

.00005
.00010
010 .00015 .00020.00025 .00030.00035.00040.00045.00050
| 0020
0.2
0.10
0.15
0.4
.16
0.18 0.21 0.23
.23 .28
0.25
0.27 0.29
0.31
0.32
.33
.36
.40
.43
.46
0.6
. 21
.30
.37
.49
.52
43
.48
•
.52
.57
.60
.64
0.8
.26
.68
.37
.45
.52
.58
.63
.68
.73
.78
.82
1.0
.30
.42
.52
.60
. 67
.74
.79
.85
.90
1. 2
.34
.48
.95
59
·
.68
.76
.83
.90
.96
1.02
1. 4
.38
.53
.65
1.07
.75
.84
.92
.99
1.06
1. 13
1.19
1.6
.41
.58
.71
.82
.92
1.01
1.09
1.16
1.23
1.30
1.8
.44
.63
.77
.89
.99
1.09
1.18
1.26
1.33
1.40
2.0
.48
.67
83
.95
1.07 1.17
1.26 1.35
1.43
1.51
2.2
51
.72
.88
1,02
1.14
1.24
1.34
1.44
1.52
1.61
2.4
.54
.76
.93
1.08
1.20
1.32
1.42 1.52
1.61
2.6
1.70
.57
.80
.98
1. 14
1.27
1.39
1.50
1.61
1.70
1.80
2.8
.60
.84
1.03
1. 19
1.33
1.46
1.58 1.69
1.79
1.89
3.0
.62
88
1.08
1.25
1.40
1.53
1.65 1.77
1.87
1.97
3.2
.65
.92
1. 13
1. 30
1.46
1.60
1.72
1.84
1.96
2.06
3.4
.68
.96
1.18
1.36
1.52
1.66
1.80
1.92
2.04
2.15
3.6
.71
1.00
1.22
1.41
1.58
1.73 1.87
1.99
2. 12
2.23
3.8
.73
1.03
1.27
1.46
1.63
1.79
1.93
2.07
2. 19
2.31
4.0
.76 1.07 1.31
1.51
1.69 1.85
2.00
2. 14
2.27
2.39
4.2
.78
1.11
1.35
1.56
1.75 1.91
2.07
2. 21
2.34
2.47
4. 4
.81
1.14
1.40
1. 61
1.80
1.97
2. 13
2. 28
4.6
.83 1.17 1.44
2.42
2.55
1.66
1.86
2.03
2.20
2.35
2.49
4.8
2.63
.85
1.21
1.48 1.71
1.91
2.09
2.26
2.42
2.56
2.70
5.0
88 1.24
•
1.52.
1.76
1.96
2. 15
2. 32
2.48
2.63
5.2
2.78
.90
1.27
1.56 1.80
2.01
2. 21
2.38
2.55
2.70
2.85
5.4
.92
1. 31
1.60 1.85
2.07
2.26
2. 44
2.61
2. 77
2.92
5. 6
.95
1.34
1.64
1.89
2. 12
2.32
2.50
2.68
2.84
5.8
2.99
.97
1.37
1.68
1.94
2.17
2.37
2.56
2.74
2.91
3.06
6.0
.99
1.40 1.72
1.98
2. 22
2. 43
2.62
2.80
2.97
6.2 1.01
3. 13
1.43
1.75 2.03
2.27
2.48
2.68
2.87
3.04
6.4 1.03
3.20
1.46 1.79
2.07
2.31
2.53
2.74
2.93
3. 10
6.6
3.27
1.06
1.49 1.83
2.11
2.36
2.59
2.79
2.99
3.17
6.8
3.34
1.08
1.52 1.87
2.16
2.41
2. 64
2.85
3.05
3. 23
3.41
7.0 1.10
7.5 1.15 1.63
1.55
1.90
2.20
2.46
2.69
2.91
3.11
3.30
3.47
1.99 2.30
2.57
2.82
3.04
3.25
8.0
1.20 1.70
3. 45
3. 64
2.08 2.40
2.69
2.94
3. 18
3.40
3.60
8.5
3.80
1.25
1.77 2.17 2.50
2.80
3.06
3.31
3.54
9.0 1.30
3.75
3.95
1.84
2.25 2.60
2.90
3. 18
3. 44
3.67
3.90
4. 11
9.5
4. 26
1.35
4. 04
1.90
3.81
2. 33
3.56
2.69
3.30
3.01
HYDRAULIC TABLES
437
Table 34.-Velocity of water, v, in feet per second, based on
8
.00055
T
1.486
N
Manning's formula v= 2/31/2
n=.035—Continued

.00060.00065.00070.00075.00080.00085.00090.00095 .00100
0065 .00070
0.2
0.34 0.36
0.4 0.54 0.56
0.37 0.38 0.40 0.41 0.42 0.44
0.45 0.46
0.59
0.61
0.63 0.65 0.67
0.69
0.71
0.73
0.6
0.71
0.74
0.77
0.80
0.83 0.85
0.88
0.91
0.93
0.96
0.8
0.86
0.90
0.93
0.97 1.00
1.03
1.07
1.10
1. 13
1.16
1.0
1.2
1.4
1.6
1.8
024 60 00
1.00
1.04
1.08
1.12
1.16
1.20
1.24
1.27
1.31
1.34
1. 12
1. 17
1.22
1.27
1.31
1.36
1.40
1.44
1.48
1.52
1.25
1.30
1.35
1.41
1,46
1.50
1.55
1.59
1.64
1.68
1.36
1.42
1.48
1.54
1.59
1.64
1.69 1.74
1.79
1.84
1.47
1.54 1.60
1.66
1.72
1.78
1.83
1.88
1.94
1.99
2.0
1.58
1.65
1.72
1.78
1.85
1.91
1.96
2.02
2.08
2. 13
2.2
1.68
1.76
1.83
1.90
1.97
2.03
2.09
2.15
2. 21
2.27
2.4 1.78
1.86
1.94
2.01
2.08
2.15
2.22
2.28
2. 35
2. 41
2.6 1.88
1.97
2.05
2. 12
2. 20
2.27
2.34
2.41
2.47
2.54
2.8 1.98
2.07
2.15
2.23
2.31
2.39
2.46
2.53
2.60
2.67
erð eð eð eð eð
✪ QIN CO αo
3.0 2.07
2.16
2.25
2.34
2.42
2.50
2.57
2.65
2.72
2.79
3.2 2.16
2. 26
2.35
2.44
2.52
2.61
2.69
2.77
2.84
2.92
3.4
2.25
2.35
2.45
2.54
2.63
2.72
2.80
2.88
2.96
3.04
3.6 2.34
2.44
2.54 2.64
2.73
2.82
2.91
2.99
3.07
3. 15
3.8
4.0
2.42
2.53
2.64 2.74
2.83
2.92
3.01
3.10
3. 19
3.27
2. 51
2.62
2.73 2.83
2.93
3.03
3.12
3.21
3.30
3.38
4.2
2.59
2.71
2.82
2.92
3.03
3.13
3. 22
3.32
3. 41
3.50
4.4
2.67
2.79
2.91
3.02
3. 12
3. 22
3.32
3.42
3.51
3.61
4.6 2.75 2.88
2.99
3. 11
3.22
3.32
3. 42
3.52
3.62
3.71
4.8 2.83 2.96
3.08
3.20
3.31
3.42
3.52
3.62
3.72
3.82
5.0 2.91
3.04
3.17
3.28
3.40
3. 51
3.62
3.72
3.83
3.93
5.2
2.99
3.12 3.25
3.37 3.49
3.60
3.72
3.82
3.93
4.03
5.4
3.06
3.20 3.33
3.46
3.58
3.70
3.81
3.92
4.03
4. 13
5.6
3. 14
3.28 3.41
3. 54
3.67
3.79
3.90
4.02
4. 13
4.23
5.8
3.21
3.36
3.49
3.63
3.75
3.88
4.00
4. 11
4.22
4. 33
6.0
3.29
3.43
3.57
3.71
3.84
3.97
4.09
4. 21
4.32
4. 43
6.2
3.36
3.51
3.65 3.79
3.92
4.05
4. 18
4.30
4.42
4.53
6.4
3. 43
3.58
3.73 3.87 4.01
4. 14
4. 27
4.39
4. 51
4.63
6.6
3.50
3.66
3.81
3.95
4.09
4. 23
4. 36
4. 48
4.60
4.72
6.8
3.57 3.73
3.89
4.03
4.17
4. 31
4. 44
4. 57
4.70
4.82
7.0
3.64 3.81
3.96
4. 11
4. 25
4. 39
4. 53
4. 66
4.79
4.91
7.5 3.82
3.98
4. 15
4.30
4.46
4.60
4.74
4.88
5. 01
5. 14
8.0
3.98
4.16
4. 33
4.49
4. 65
4.80
4.95
5.09
5. 23
5.37
8.5
4. 15
4.33
4. 51
4.68
4.84
5.00
5. 16
5.30
5. 45
5.59
9.0
4. 31
4.50
4.68
4.86 5.03
5.20
5.36
5. 51
5. 66
5.81
9.5
6.02
4.47
5.87
4.66
5.71
4.86
5. 55
5.04 5. 22
5.39
438
HYDRAULIC TABLES
Table 34.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.035—Continued

S
.0010
.0015
.0020
.0025 .0030 .0035 .0040 .0045
.0050
0.2
0.46
0.56
0.65
0.73
0.80
0.86 0.92
0.97
1.03
0.4
.73
.89
1.03
1.15
1.26
1.36
1.46
1.55
1.63
0.6
.96
1.17
1.35
1.51
1.65
1.79
1.91
2.03
2. 14
0.8
1.16
1.42
1.64
1.83
2.00
2.16
2.31
2.45
2.59
1.0
1.34
1.64
1.90
2. 12
2. 33
2. 51
2.69
2.85
3.00
1.2
1.52
1.86
2.14
2.40
2.63
2.84
3.03
3.22
3.39
1. 4
1.68
2.06 2.38
2.66
2.91
3. 14
3.36
3.56
3.76
1.6
1.84
2.25
2.60
2.90
3.18
3.44
3.67
3.90
4. 11
1.8
1.99
2.43
2.81
3. 14
3. 44
3.72
3.97
4. 21
4. 44
2.0
2. 13
2.61
3.01
3.37
3.69
3.99
4.26
4.52
4.77
2.2
2.27
2.78
3. 21
3. 59
3.93
4. 25
4. 54
4.82
5.08
2.4
2. 41
2.95
3.40
3.81
4. 17
4.50
4.81
5.11
5.38
2.6
2.54
3.11
3.59
4.01
4.40
4.75
5.08
5.39
5.68
2.8
2.67
3.27
3.77
4. 22
4.62
4.99
5.33
5.66
5.96
3.0
2.79 3.42
3.95
4.42
4.84
5.22
5.59
5.92
6. 24
3.2 2.92
3.57
4.12
4.61
5.05
5.45
5.83
6.18
6. 52
3.4
3.04 3.72
4. 29
4.80
5.26
5.68
6.07
6.44
6.79
3.6
3.15 3.86
4.46
4.99
5.46
5.90
6.31
6.69
7.05
3.8
3.27
4.00
4.62
5.17
5.66
6.12
6.54
6.94
7.31
4.0
3.38
4. 14
4.78
5.35
5.86
6.33
6.77
7.18
7.57
4. 2
3.50
4. 28
4.94
5.53
6.05
6.54
6.99
7.41
7.82
4. 4
3.61
4. 42
5.10
5.70
6. 24
6.74
7.21
7.65
8.06
4.6
3.71
4. 55
5. 25
5.87
6.43
6.95
7.43 7.88
8.30
4.8
3.82
4.68
5.40
6.04
6.62
7.15
7.64
8.10
8.54
5.0
3.93
4.81
5.55
6. 21
6.80
7.34
7.85
8.33
8.78
5.2
4.03
4.94
5.70
6. 37
6.98
7.54
8.06
8.55
9.01
5. 4
4. 13
5.06
5.84
6.53
7.16
7.73
8.27
8.77
9.24
5.6
4.23
5. 19
5.99
6.69
7.33
7.92
8.47
8.98
9.47
5.8
4.33
5. 31
6. 13
6.85
7.51
8.11
8.67
9.19
9.69
6.0
4.43
5. 43
6. 27
7.01
7.68
8.29
8.87
9.40
9.91
6.2
4.53
5. 55
6.41
7.16
7.85
8.48
9.06
9.61
10. 13
6.4
4.63
5.67
6. 55
7.32
8.02
8.66
9.26
9.82
10.35
6.6
4.72
5.79
6.68
7.47 8.18
8.84 9.45
10.02
10.56
6.8
4.82
5.90
6.82
7.62
8.35
9.02 9.64
10.22
10.78
7.0
4.91
6.02
6.95
7.77
8.51
9.19
9.83
10.42
10.99
7.5
5. 14
6.30
7.28
8. 13
8.91
9.62
10.29
10.91
11.50
8.0
5.37
6. 58
7.59
8.49
9.30
10.05 10.74 11.39
12.01
8.5
5. 59
6.85
7.91
8.84 9.69
10.46 11.18 11.86
12.50
9.0
5.81
7.11
8.22
9.19
10.06
10.87
11.62 12.32
12.99
9.5
13.47
6.02
12.78
7.38
12.04
8.52
11. 27
9.52
10.43
HYDRAULIC TABLES
439
Table 34.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.035—Continued

8
.0055
.0060
.0065
.0070
.0075 .0080
.0085
.0090
.0095 .0100
T
0.2
1.08
1. 12
1. 17
1. 21
1. 26
1.30
1.34
1.38
1.42
1.45
0.4
1.71
1.79
1.86
1.93
2.00
2.06
2. 13
2. 19
2.25
2.30
0.6
2. 24
2.34
2.44
2. 53
2.62
2.70
2. 78
2.87
2.94
3.02
0.8
2.71
2.83
2.95
3.06
3. 17
3.27
3.37
3.47
3.57
3.66
1,0
3. 15
3.29
3.42
3.55
3.68
3.80
3.91
4.03
4. 14
4. 25
1.2
3.56
3.71
3.87
4.01
4. 15
4.29
4. 42
4. 55
4.67
4.79
1.4
3.94
4. 12
4. 28
4.45
4.60
4.75
4.90
5.04
5. 18
5.31
1.6
4. 31
4.50
4. 68
4.86
5.03
5. 19
5.35
5. 51
5. 66
5.81
1.8
4. 66
4.87
5.07
5. 26
5. 44
5.62
5.79
5.96
6. 12
6. 28
2.0
5.00
5. 22
5. 43
5. 64
5. 84
6.03
6. 21
6.39
6. 57
6.74
2.2
5. 33
5.56
5.79
6.01
6. 22
6. 42
6.62
6.81
7.00
7.18
2.4
5.64
5.90
6. 14
6.37
6.59
6.81
7.02
7.22
7.42
7.61
2.6
5.95
6. 22
6.47
6. 72
6.95
7. 18
7.40
7.62
7.82
8.03
2.8
6. 26
6.53
6.80
7.06
7.30
7.54
7.78
8.00
8. 22
8.43
3.0
6.55
6.84
7.12
7.39 7.65
7.90
8. 14
8.38
8.61
8.83
3.2
6.84
7.14
7.43 7.71
7.98
8. 25
8.50
8.75 8.99
9.22
3.4 7.12
7.44 7.74
8.03
8.31
8.59
8.85
9.11
9.36
9.60
3.6
7.40
7.72
8.04 8.34
8.64
8.92
9. 19
9.46
9.72
9.97
3.8
7.67
8.01 8.34
8.65
8.95
.9.25
9.53
9.81
10.08
10.34
4.0
4.2
4. 4
4.6
0246 0
7.93
8.29 8.63
8.95
9.27
9.57
9.86
10. 15
10.43
10.70
8.20
8.56 8.91 9.25
9.57
9.89
10. 19
10.49
10.77
11.05
8.45
8.83 9.19 9.54
9.87
10.20
10. 51
10.82
11. 11
11.40
8.71 9.10 9.47
9.83
10. 17
10.50
10.83
11. 14
11. 45
11. 74
4,8
8.96 9.36
9.74 10.11
10.46
10.81
11. 14
11. 46
11.78
12.08
16 16 16 16 16
5.0
9.21
5.2 9.45
9.62
10.01
10.39
10.75
11. 10
11.45
11.78
12. 10
12. 41
9.87
10. 27
10.66
11.04
11.40
11.75
12.09
12. 42
12. 74
5.4
9.69
10. 12
10.54
10.93
11. 32
11. 69
12.05
12.40
12. 74
13.07
5.6
9.93
10.37
10.79
11.20
11.60
11.98
12.34
12.70
13.05
13. 39
5.8
10. 16
10.62
11.05
11. 47
11.87
12. 26❘ 12.64
13.00
13.36
13. 71
6.0 10.40
10, 86
11.30
11.73
12. 14
12.54 | 12.92
13.30
13.66
14.02
6.3 10.63
11. 10
11.55
11.99
12.41
12.82
13. 21
13.59 13.97
14.33
6.4 10.85
11.34
11.80
12. 24
12.67
13.09
13.49
13.88
14.26
14. 64
6.6 11.08
11.57
12. 04
12.50
12.94
13.36
13.77
14. 17
14.56
14.94
6.8 11.30
11.80
12. 29
12.75
13.20
13. 63
14.05
14.46
14.85
15. 24
7.0
7.5
8.0
8.5
9.0
OBOKO O
11.52
12.03
12. 53
13.00
13.45 13.90
14.32
14.74
15. 14
15.54
12.06
12.60
13, 12
13.61
14.09
14.55
15.00
15.43
15.86
16. 27
12.59
13. 15
13.69
14. 21
14.71
15. 19
15. 66
16. 11
16.55
16.98
13. 11
13.70
14.26
14.79
15.31
15.82
16.30
16.78
17.24
17.68
13.62
14. 23
14.81 15.37 15.91
16. 43
16.94
17.43
17.90
18.37
9.5
19.04
14. 12
18. 56
14. 75
18.07
15. 35
17.56
15.93 16. 49
17.03
440
HYDRAULIC TABLES
Table 34.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.035—Continued


♡
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2
1.45
2.05
2. 51
2.90
3.25
3.56
3.84
4. 11
4.36
4.59
0.4
2.30
3.26
3.99
4. 61
5. 15
5.65
6.10
6.52
6.91
7.29
0.6
3.02
4.27
5.23
6.04
6.75
7.40 7.99
8.54
9.06
9.55
0.8
3.66
5.17
6.34
7.32
8. 18
8.96
9.68 10.35
10.98
11.57
1.0
4.25
6.00
7.35
8.49
9.49
10.40
11.23
12.01
12.74
13.43
1.2
4.79
6.78
8.30
9.59
10.72
11.74 12.68
13.56
14.38
15. 16
1.4
5. 31
7.51 9.20
10.63
11.88
13.02 | 14.06
15.03
15.94
16.80
1.8
5.81
8.21
10.06
11.62
12.99
14. 23 15.37 16.43
17.42
18.37
1.8
6.28
8.88
10.88 12.56
14.05
15.39
16.62
17.77 18.85
19.87
2.0 6.74
9.53
11.67
13.48 15.07
16.51
17.83
19.06 | 20.22
21.31
2.2
7.18
10. 16
12.44
14.36
16.06
17.59
19.00
20.31 21.55
22.71
2.4 7.61
10.76
13. 18
15. 22
17.02
18. 64
18.64
20. 14
21.53
22.83
24.07
2.6
8.03
11.35
13.90
16.06
17.95
19.66
21.24
22.71
24.08
25.39
2.8
8.43
11.93
14. 61
16.87
18.86
20. 66
22.32
23.86
25.30
26.67
3.0
8.83
12.49 15.30
17.66
19.75
21.63
23.37
24.98
26, 49
27.93
3.2
9.22 13.04
15.97
18. 44
20.62
22.58
24.39
26.08
27.66
29. 16
3. 4
9.60
13.58
16.63
19.20
21.47
23.52
25.40
27.15
28.80
30.36
3.6
9.97
14. 10
17.27
19.95
22.30
24. 43
26.39
28. 21
29.92
31. 54
3. S
10.34
14. 62
17.91
20.68
23.12 | 25.32 | 27.35
29. 24
31.02
32.69
4.0
10.70
15. 13
18.53
21.40
23.92❘ 26. 21
28.31
30.26
32.10
33.83
4.2
11.05
15.63
19.14
22.10
24.71 27.07
29. 24
31.26
33. 16
34.95
4.4
11.40
16. 12
19.75
22.80
25.49❘ 27.93
30.16
32.25
34.20
36.05
4.6
11.74
16.61
20.34
23.49
26.26 28.77
31.07
33.22
35. 23
37. 14
4.8
12.08
17.09
20.93
24. 16
27.01
29.59
31.96
34.17 | 36. 24
38.20
5.0
12. 41
17.56
21.50
24.83 27.76
30.41
32.85
35. 11
37.24
39.26
5.2
12.74
18.02 22.07
25.49
28.50
31. 21
33.72
36.04
38. 23
40.30
5.4
13.07
18.48 22.63 26.14
29.22
32.01
34.58
36.96 | 39.20
41.33
5.6
13. 39
18.93 23.19 26.78 29 94
32.80
35.42 37.87 40.17
42.34
5.8
13.71
19.38 23.74 27.41
30.65
33.57
36.26 | 38.77 | 41. 12
43.34
6.0
14.02
19.83 24,28 28.04 31.35
34.34
37.09 | 39.65 | 42.06
44.33
6.2
14. 33
20.26
24.82
28.66
32.04
35.10
35. 10
37.91
37.91 | 40.53 | 42.99
45.31
6.4
14.64
20.70
25. 35
25.35
29.27 32.73
35.85
38.72 41.40 | 43.91
46.28
6.6
14.94
21. 13
25.87
29.88 33.40
36.59
39.52
42.25 | 44.82
47. 24
6.8
15. 24
21.55
26.39
30.48
34.08
37.33
37.33
40.32
43. 10
45.72
48.19
7.0
15. 54
21.97
26.91
31.07
34.74
38.06 | 41.11
43.94
46. 61
49. 13
7.5
16. 27
23.01 28. 18
32.54
36. 38
39.85 43.04
46. 01
48.80
51.44
8.0
16.98
24.02 29.42
33.97
37.97
8.5 17.68 25.01 30.63
9.0 18.37 25.98 31.82
41.60 44.93
35.37 39.54 43.32 46.79
36.74 41.08 45.00 48.60
48. 03
50.95
53.70
50.02 | 53.05
55.92
51.96
55. 11
58.09
9.5 19.04 26.93 32.99 38.09 42.58
60.22
46.65 50.39
57.13
53.87
HYDRAULIC TABLES
441
8
.00005
.00010
Table 34.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n=.035—Continued
.00015.00020.00025.00030 | .00035.00040.00045.00050
n


0030 00035 .00040
T
10
11
12
18
20
21
26
28
PERRE 10*02 222** *2*X2 SMS** *****
1.39
1.97
2.41
2.79
3. 12
3. 41 3.69
3.94
4.18
4. 41
1.48
2.10
2. 57
2.97
3. 32
3. 64
3.93
4. 20
4.45
4.70
1.57
2.23
2.73
3.15
3.52
3.85
4. 16
4.45
4.72
4.98
13 1.66
2.35
2.87
3.32
3.71
4.07
4.39
4.69
4.98
5.25
14
1.74
2.47
3.02
3.49
3.90
4.27
4.61
4.93
5. 23
5. 51
15
1.83
2.58
3. 16
3.65
4.08
4.47
4.83
5. 16
5. 48
5.77
16
1.91
2.70
3.30
3.81
4.26
4.67
5.04
5.39
5.72
6.03
17 1.98
2.81
3.44
3.97
4. 44
4.86
5.25
5.61
5.95
6. 28
2.06
2.92
3.57
4. 12
4. 61
5.05
5.46
5.83
6. 19
6. 52
19
2. 14
3.02
3.70
4. 28
4.78
5. 24
5.66
6.05
6. 41
6.76
2. 21
3. 13
3.83
4.42
4.95
5. 42
5.85
6.26
6. 64
7.00
2. 29
3.23
3.96
4.57
5. 11
5.60
6.05
6.46
6.86
7.23
2.36
3.33
4.08
4.71
5.27
5.77
6.24
6.67
7.07
7.45
23
2.43
3.43
4. 21
4.86
5. 43
5.95
6.42 6.87
7.28
7.68
24
2.50
3.53
4.33
5.00
5.59
6. 12
6.61 7.07
7.49
7.90
25
2.57
3.63
4. 45
5. 13
5.74
6. 29
6.79
7.26
7.70
8.12
2.63
3.73
4.56
5.27
5.89
6.45
6.97 7.45
7.90
8.33
27
2.70
3.82
4.68
5.40
6.04
6. 62
7.15
7.64
8. 11
8.54
2.77
3.91
4.79
5.54
6. 19
6.78
7.32
7.83
8.30
8.75
29
2.83
4. 01
4. 91
5.67
6.34
6.94
7.50
8.02
8.50
8.96
30
2.90
4.10
5.02
5.80
6.48
7.10
7.67 8.20
8.70
9. 17
31
2.96
4. 19
5. 13
5.93
6. 62
7.26
7.84 8.38
8.89
9.37
32
3.03
4. 28
5. 24
6.05
6.77
7.41
8.01❘ 8.56
9.08
9.57
33
3.09
4. 37
5.35
6.18 6.91
7.57
8. 17
8.74
9.27
9.77
34
3. 15
4. 46
5.46
6.30 7.05
7.72
8.34
8.91
9.45
9.96
35
3. 21
4.54
5.56
6. 42
7.18
7.87
8.50
9.09
9.64
10. 16
36
37
3.27
3.33
4. 63
5.67
6.55
7.32
8.02
8.66
9.26
9.82
10.35
4.71 5.77
6.67
7.45
8. 17
8.82
9.43
10.00
10. 54
39 3.39
4.80 5.88
6.79
7.59
8.31
8.98
9.60
10. 18
10.73
39 3.45
4.88 5.98
6.91 7.72
8.46
9. 13
9.77
10.36
10.92
40 3.51
4.97
6.08
7.02
7.85
8.60
9.29
9.93
10.53
11. 10
41
3.57
5.05
6. 18
7.14
7.98
8.74
9. 44
10. 10
10.71
11. 29
42
3.63
5. 13
6. 28
7.25
8. 11
8.89
9.60
10.26
10.88
11.47
43
3.68
5. 21
6.38 7.37
8. 24
9.03
9.75
10.42
11.05
11. 65
44 3.74
5.29
6.48
7.48
8.37
9.17
9.90
10.58 11. 23
11.83
45
3.80
5.37
6.58
7.60 8.49
9.30
10.05
10.74
11.39
12. 01
46 3.85
5.45
6.68
7.71 8.62
9.44
10. 20
10.90
11.56
12. 19
47
3.91
5. 53
6.77
7.82 8.74
9.58
10. 34
11.06
11.73
12.36
48
3.97
5. 61 6.87
7.93 8.87
9.71
10.49
11. 22
11.90
12.54
49
4.02
5.69
6.96
8.04 8.99
9.85
10. 64
11.37
12.06
12.71
50
4.07
5.76
7.06 8.15 9. 11
9.98
10.78 11.52
12. 22
12.88
563189°-44-
-29
442
HYDRAULIC TABLES
Table 34.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.035—Continued

.00055 .00060.00065|
.00065 .00070.00075.00080.00085.00090.00095 | .00100
10
11
12
13
14
15
18
17
18
19
PERIL 1**** 22*** *REAR 8788
4.62
4.83
5.02 5.21 5.40 5.57
5.75
5.91
6.07
6. 23
4. 92
5. 14
5.35
5.56 5.75
5.94
6. 12
6.30 6.47
6.64
5. 22
5. 45
5.67
5.89
6.09
6. 29
6.49
6.68
6.86
7.04
5. 51
5.75
5.98
6.21
6.43
6.64
6.84
7.04 7.24
7.42
5.78
6.04
6.29
6.53 6.75
6.98
7.19
7.40
7.60
7.80
6.06
6. 33
6. 58
6.83
7.07
7.30
7.53
7.75
7.96
8. 17
6. 32
6.60
6.87
7.13
7.38
7.63
7.86
8.09
8. 31
8.53
6.58
6.88
7.16
7.43
7.69
7.94
8.18
8.42
8.65
8.88
6.84
7.14
7.43
7.72
7.99
8.25
8.50 8.75
8.99
9.22
7.09
7.41
7.71
8.00
8.28
8.55
8.81
9.07
9.32
9.56
20
7.34
7.66 7.98
8.28
8.57
8.85
9.12 9.38
9.64
9.89
21
7.58 7.92
8.24
8.55
8.85
9.14 9.42 9.70
9.96
10.22
7.82
8.17
8.50
8.82
9. 13
9.43
9.72
10.00
10.27
10.54
23 8.05
8.41 8.75
9.08
9.40
9.71
10. 01
10.30
10.58
10.86
24
8.28
8.65
9.01
9.35
9.67
9.99
10.30
10.60 10.89
11.17
25
8.51
8.89
9.25
9.60
9.94
10.27
10.58
10.89
11.19
11.48
26
8.74
9. 13
9.50
9.86
10. 20
10.54
10.86
11.18
11.48
11.78
27
8.96
9.36
9.74
10.11
10.46
10.81
11. 14
11. 46
11.78
12.08
28
9. 18
9.59
9.98 10.36
10.72
11.07
11.41
11.74
12.07
12.38
29
9.40
9.82 10.22 | 10.60
10.98
11. 34
11.68
12.02 12.35
12.67
30
9.61
10.04 10.45 10.85 11. 23
11.59
11.95
12.30
12. 63
12.96
31 9.83 10.26 10.68 11.09 11.47
11.85
12. 22
12.57
12.91
13.25
32 10.04
10.48
10.91
11.32 11.72
12.10
12.48
12.84
13. 19
13.53
33
10.24 10.70
11. 14
11.56
11.96
12.35
12. 74
13. 10
13.46
13.81
34
10.45
10.91
11.36
11.79
12. 20
12.60
12.99
13. 37
13.73
14.09
35
10.65
11.13
11.58 | 12.02 | 12.44
12.85
13. 24
13.63
14.00
14.37
36 10.86
11.34
11.80 12.25
12.68
13.09
13.50
13.89
14. 27
14. 64
37
11.06
11.55 12.02
12.47
12.91
13.33
13.74
14. 14
14.53
14.91
38 11.25
11.75 12.23
12.70
13. 14
13.57
13.99
14.40
14.79
15. 18
39
11.45
11.96
12.45
12.92
13.37
13.81
14. 24
14.65
15.05
15. 44
40
11.65
12. 16
12.66
13. 14
13.60
14.05
14.48
14.90
15. 31
15.70
41
11.84
12.37 12.87
13.36
13.83
14.28
14. 72
15. 14
15.56
15.96
42
12.03
12.57 13.08
13.57 14.05
14.51
14.96
15.39
15.81
16. 22
43 12.22
12.76 13.29
13.79 | 14. 27
14.74
15. 19
15.63
16.06
16.48
44
12.41
12.96 13.49
14.00
14. 49
14.97
15.43
15.87
16.31
16.73
4.5 12.60
13.16
13.69 | 14. 21
14.71
15. 19
15.66
16. 11
16.56
16.99
46
12.78
13.35
13.90
14.42
14. 93
15.42
15.89
16.35
16.80
17.24
47
12.97
13.54
14. 10
14. 63
15. 14
15. 64
16. 12
16.59 | 17.04
17.49
48
13. 15
13.74
14.30
14.84
15.36
15.86
16.35
16.82 17.28
17.73
49
13.33
13.93
14.49
15.04 15.57 16.08 16.58
17.06 17.52
17.98
50 13.51
18. 22
14. 11
17.29 17.76
14.69
15.25 15.78 16.30 16.80
HYDRAULIC TABLES
443
་
T
Table 34.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= p2/3g1/2
N
Co
n=.035—Continued

.0010 .0015
.0020
.0025 .0030 .0035
.0040
.0045
.0050
10
13
18
PERCI 1**** 22222 22262 8*23* ***** ***** ***** 8
6. 23
7.63
8.81
9.85
10.79
11.66
12.46
13. 22
13.93
6.64
8.13
9.39
10.50
11.50
12.42
13. 28
14.09
14.85.
12
7.04
8.62
9.95
11.13
12.19
13. 17
14.07
14.93
15.74
7.42
9.09
10.50
11.74
12.86
13.89
14.85
15.75
16.60
14
7.80
9.55 11.03
12.33
13. 51
14.59
15.60
16. 54
17.44
15
8.17
10.00
11.55
12.91
14. 14
15. 28
16.33
17.32
18.26
16 8.53
10.44
12.06
13.48
14.77
15.95
17.05
18.08
19.06
17 8.88
10.87 12.55
14.04
15.37
16. 61
17.75
18.83
19.85
9.22
11.29
13.04
14.58
15.97
17.25
18. 44
19.56
20.62
19
9.56
11.71
13.52
15.12
16.56
17.88
19.12
20.28
21.38
21
20 9.89
10.22
12. 12
13.99
15.64
17. 13
18. 51
19.78
20.99
22.12
12.52
14.45
16. 16
17.70
19.12
20.44
21.68
22.85
10.54
12.91
14.91
16.67
18.26
19.72 21.08
22.36
23.57
23 10.86 13.30
24 11.17 13.68
15. 36
17.17
18.81 20.31
21.72
23.03
24. 28
15.80
17.66
19.35
20.90
22.34
23.70
24.98
25 11.48 14.06
16. 23
18. 15
19.88
21.48
22.96
24.35
25.67
11.78
14.43
16.66
18.63
20.41
22.04
23.57
25.00
26.35
27
12.08
14.80
17.09 19.11
20.93
22. 61
24. 17
25. 63
27.02
28
12.38
15. 16
17.51
19.57
21.44
23.16
24.76
26. 26
27.68
29 12.67
15. 52
17.92
20.04
21.95
23.71
25.35
26.88
28.34
30
12.96
15.88
18.33
20.50
22.45
24. 25
25.93
27.50
28.99
31
13. 25
16.23
18.74
20.95
22.95
24.79
26.50
28.11
29.63
13.53
16.57
19. 14
21.40
23.44
25. 32
27.07
28.71
30.26
33 13.81
16.92
19.53
21.84
23.93
25.84
27.63
29.30
30.89
34
14.09
17.26
19.93
22.28
24. 41
26.36
28. 18
29.89
31.51
35
14.37 17.59 20.32
22.71
24.88
26.88
28.73
30.47
32. 12
36 14.64 17.93
20.70
23. 14
25.35 27.39
29.28
31.05
32.73
37
14.91 18.26
21.08
23.57
25.82 27.89
29.82
31.62
33.34
38
15. 18
18.59 21.46
23.99
26.28
28.39
30.35
32. 19
33.93
39
15.44
18.91
21.84
24. 41
26.74
28.89
30.88
32.75
34.53
40 15.70
19.23
22. 21
24.83
27.20
29.38
31. 41
33.31
35. 11
41
15.96
19.55
22.58
25. 24
27.65
29.87
31.93
33.86
35.70
42
16. 22
19.87
22.94
25.65
28.10
30.35
32. 44
34. 41
36. 27
43
16. 48
20.18
23.30
26.06
28.54
30.83
32.96
34.96
36.85
44
16.73
20.49 23.66 26.46
28.98
31. 31
33. 47
35.50
37.42
45
16.99 20.80
24.02 26.86
29.42
31.78
33.97
36.03
37.98
46 17.24 21.11
24.38 27.25
29.85
32.25
34.47 36.56
38.54
47 17.49 21.42
48 17.73 21.72
24. 73
27.65
30.29
32.71
34.97
37.09
39. 10
25.08
28.04
30.71
33. 18
35. 47
37.62
39.65
49
17.98
22.02
25. 43
28.43
31. 14
33.63
35.96
38. 14
40.20
50
18. 22
22.32
25.77 28.81
31.56
34.09
36.44
38.65
40.75
444
HYDRAULIC TABLES
Table 34.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= -r2/3g1/2
n=.035—Continued

00
8
.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090
.0095
.0100
10
14. 61
15. 26
15.89 16.49
17.07
17.63 18.17
18.70
19. 21
19.71
11
15.57
16. 27
16.93
17.57
18. 18
18.78
19.36 19.92
20.47
21.00
12
16. 50
17.24
17.94 18.62
19.27
19.90
20.52 21.11
21.69
22.25
13
17.41
18. 18
18.93 19.64
20.33
21.00 21.64
22.27
22.88
23.47
14
18.29
19.10
19.88
20.63
21.36
22.06 22.74
23.40
24.04
24. 66
21
28
29
30
*-=-= 2**** **RAR AMA** ****8 ***** *****
15 19. 15
20.00 20.82
21.61
22.36
23.10 | 23.81
24.50
25. 17
25.82
16
19.99
20.88 21.73 22.56 23.35
24.11 24.85
25.58
26. 28
26.96
17
20.82
21.74
22.63
23.49
24.31
25.11
25.88
26.63 27.36
28.07
18 21.63
22.59
23. 51
24. 40
25.25
26.08
26.88
27.66 | 28.42
29.16
19
22.42
23.42
24. 37
25.29
26. 18
27.04
27.87 28.68 29.47
30.23
20 23.20
24. 23
25. 22
26. 17
27.09❘ 27.98 | 28.84 | 29.68
30.49
31.28
23.97
25.03
26.05
27.04
27.99 28.91 29.79 30.66
31.50
32.32
22
24.72
25.82
26.88
27.89
28.87 29.82 | 30.73
31.62
32.49
33.33
23
25.47
26.60
27. 68
28.73
29.74 | 30.71 31.66
32. 58
33.47
34.34
24
26. 20
27.36
28.48
29.56
30.59 31.60
32.57 | 33.51
34. 43
35. 33
25 26.92
28.12
29.27
30.37
31.44
32.47
33.47 34.44
35.38
36.30
26 27.63 28.86 30.04
31. 18
32. 27
33.33
34.35
35.35 36.32
37.26
27
28.34
29.60 30.81
31.97
33.09
34. 18
35. 23
36.25
37.24
38.21
29.03
30.32 31.56 32.75
33.90
35.02
36.09
37.14
38. 16
39. 15
29.72 31.04 32.31
33.53
34.71
35.84 | 36.95 | 38.02 | 39.06
40.08
30.40 31.75
33.05 34.30
31 31.07
32 31.74
33 32.39
34 33.05
35 33.69 35.19 36.63
36 34.33 35.86 37.32
37 34.96 36.52 38.01
32.45
33.78
35.05
35.50 36.66
36.28 37.47
37.79 38.89
39.95
40.99
38.63
39.75
40.84
41.90
33. 15
34.50
35.80
37.06 | 38.28
39.45
40.60
41.71
42.79
33.84
35. 22
36.55
37.83 39.07
40.27
41.44
42. 58
43.68
34.52
35.92
37.28
38. 59
39.85
41.08
42.27
43.43
44.56
38.01
39.34
40.63
41.88
43.10
44. 28
45.43
38. 73
40.09 41.40
42.68
43.91
45. 12
46.29
39.44
40.83
42.17
43.46
44.72
45.95
47.14
38
35.59
37.17 38.69
40. 15
39
36. 21
37.82
39.37
40.85
41.56 42.92
42.29 43.67
44.24 45.53 46.77
47.99
45.02
46.32
47.59
48.83
40
36.83
38.47
40.04 41.55
43.01
44.42
45.78
47.11 48.40
49.66
41
37.44
39. 10
40.70 42.24
43. 72
43.72
45. 15
46.54
47.89 | 49.20
50.48
42
38.05
39.74
41.36 42.92
44.43
45.88
47.30
48.67 50.00
51.30
43 38.65 40.37 42.01 43.60
45. 13
44
39.24 40.99 42.66 44.27
45.83
46.61 48.04
47.33
49.44 50.79
52.11
48.79 50.20 51.58
52.92
45 39.84 41.61 43.31
44.94 46.52 48.04
49.52 50.96 52.35
53.71
47
48
49 42.16 44.04
46 40.42 42.22 43.95 45.60 47.20 48.75
41.01 42.83 44.58 46.26 47.89 49.46 50.98
41.59 43.44 45. 21..46.92 48.56 50.16 51.70
45.84 47.57 49.24 50.85 52.42
50.25
51.71 53.13
54. 51
52.46 53.89
55.29
53.20 54.66
53.93
56.08
55.41 56.85
50
57.62
42.73 44.63 46.46
56. 16
48. 21
54.67
49.90
53. 13
51.54
HYDRAULIC TABLES
445
Table 34.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.035—Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
10
19.71
27.87
34. 13
39.41
44.07
48.27 52.14
11
21.00
29.70
36. 37
42.00
46.96
51.44
55.56
55.74
59.40 63.00 66.41
59.12 62.32
12
22.25
31.47
38.54
44. 51
49.76
54. 51
58.88
62.94 66.76 70.37
13 23.47
33.20
40.66
46.95
52.49
57.50
62.11
66.39 70.42 74.23
14
24.66
34.88 42.72
49.32
55. 15
60.41
65.25
69.76
73.99 77.99
15
25.82
36.52 44.73
51.65
57.74
63.25
68.32
73.04 77.47 81.66
16
26.96
38.1346. 69
53.92
60.28
66.03
71.33
76.25
80.88
85.25
17 28.07
39.70 48.62
56. 14
62.77
68.76
74.27
79.40
84. 21
88.77
18
29.16
41.24 50. 51.
58.32
65.21
71.43
77.15
82.48
87.48
92. 21
19
30.23
42.75
52.36
60.46
67.60
74.05
79.98
85.51
90.69
95.60
20
31.28
44.24
54. 18
62.57
69.95
76.63
82.77 88.48
93.85 98.92
22222
21
32.32
45.70
55.97
64.63
72.26
79.16
85.50 91.41 96.95 102.20
22
33.33
47.14 57.74
66.67
74. 54
81.65
88.20
94.29 100.00 105.41
23
34.34
48.56 59.47 68.68
76.78
84. 11
90.85
97.12 103.01 108.58
24 35.33
49.96 61.19
70.65
78.99
86.53
93. 46|
99.92 105.98 111.71
RRRRR A**** 8888 GER**
25
36.30
51.34 62.87
72.60
81.17
88.92
26
37.26
52.70
64.54
74.52
83.32
27
38. 21
54.04
66. 18
76.42
85. 44|
28
39. 15
55.37
67.81
78.30
87.54
29
40.08
56.68
69.41
80. 15
96.04 102.67 108.90 114.79
91.27 98.59 105. 39 111. 79 117.83
93.60 101.10 108.08 114.63 120.84
95.90 103.58 110.73 117.45 123.80
89.61 98.17 106.03 113.35| 120.23 126. 73
30 40.99
57.97
71.00
81.98
91.66 100.41 108. 45
115, 94
122.98 129.63
31
41.90 59.25 72.57
83.80
93.69
93.69 102.63 110.85
118. 51
125. 69
132.49
32 42.79 60.52
74.12
85.59
95.69 104.82 113.22
121.04
128.38
135. 33
33
34
35
45.43
36 46.29
37
38 47.99
43.68
44. 56
61.77 75.66
87.36
63.02
77.18
89. 12
97.67 107.00 115. 57
99.64 109.15 117. 89
123. 55
131. 04
138. 13
126.03
133.68 140.91
64.25
78.68
90.86 101.58 111.28
120.19
128.49 136.29 143.66
65. 46
80.18
47.14
66.67
81.65
67.87 83.12
39 48.83 69.05 84.57
92.58 103.51 113. 39
94. 29 105.42 115.48
95.98 107.31 117.55 126. 97
97.65 109.18 119.60 129. 18
122. 47
130.93) 138.87 146. 38
124. 73
133. 34
141. 43
149.08
135.73
143.97 151.75
138. 10
146. 48
154.40
40
49.66 70.23 86.01
99.32 111.04 121.64 131. 38
140.45
148. 97
157.03
41
42
51.30
43
52.11
44
52.92
74.83
50.48 71.39 87.44 100. 96 112.88 123.66
72.55 88.85 102.60 114.71] 125. 66
73.70 90. 26 104.22 116.52 127.65
91.65 105.83] 118.32 129.62 140.00 149.67 158.75 167.33
133. 56
142. 79
151.45 159.64
135. 73
145. 10
153.90
162. 22
137.87
147.39
156. 33 164.79
47 55.29 78.20
45 53.71 75.96 93.04 107.43 120.11 131.57
46 54.51 77.09 94.41 109.01 121.88
95.77 110.59 123. 64
142.12
151.93 161.14| 169.86
133. 52
144. 21|
154. 17 163.52 172.37
135. 44
146. 30
156. 40 165.88 174.86
48
56.08 79.30
49
56.85
80.40
97. 13 112.15 125.39
98.47 113.70 127. 13
137.36
148.36
158. 61| 168.23 177.33
139. 26
150.42 160.80 170.56 179.78
50 57.62 81.49 99.81 115.25 128.85 141.15 152.46 162.98 172.87 182.22
446
HYDRAULIC TABLES
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.040

.00005
.00010 .00015 | .00020 | .00025 | .00030 | .00035 | .00040.00045.00050
0.2 0.09
0.13
0.16 0.18
0.20 0.22 0.24 0.25
0.27
0.4
.14
.20
.25
.29
.32
.35 .38
.40
.43
0.28
.45
•
0.6
.19
.26
.32
.37
.42
.46
.49
53
.56
.59
•
0.8
.23
.32
.39
.45
.51
.55
.60
.64
.68
.72
1.0
1.2
1.4
1.6
1.8
ORIO ∞
.26
.37
.45
.53
.59
.64
.70
.74
.79
.83
.30
42
.51
.59
.66 .73
.78
.84
.89
.94
.33
.46
.57
.66
.74
.81
.87
.93
.99
1.04
.36
.51
.62
.72
.80
.88
.95
1.02
1.08
1. 14
.39
.55
.67
.78
.87
.95
1.03
1.10
1.17
1.23
2.0
.42
.59
.72
.83
.93
1.02
1.10
1.18
1.25
1.32
2.2
.44
.63
.77
.89
.99
1.09 1.18 1.26
1.33
1.41
2. 4
. 47
.67
.82
.94
1.05
1.15 1.25 1.33
1.41
1.49
2.6
.50
.70
.86
.99
1.11
1.22
1.31
1.40
1.49
1.57
2.8
.52
.74
.90
1.04
1. 17
1.28
1.38
1.48
1.57
1.65
3.0
.55
.77
.95
1.09
1.22
1.34 1.45
1.55
1. 64
1.73
3.2
.57
.81
.99
1. 14
1.28
1.40 1.51
1.61
1.71
1.80
3.4
.59
.84
1.03
1. 19
1.33
1.45 1.57
1.68
1.78
1.88
3.6
.62
.87
1.07
1. 23
1.38
1.51 1.63
1.75
1.85
1.95
3.8
.64
.90
1. 11
1.28
1.43
1.57
1.69
1.81
1.92
2.02
4.0
.66
.94
1.15
1.32
1.48 1.62
1.75
1.87
1.99
2.09
4.2
.68
.97
1. 18
1.37
1.53
1.68
1.81
1.93
2.05
2.16
4.4
.71
1.00
1.22
1.41
1.58
1.73
1.87
2.00
2. 12
2.23
4.6
.73
1.03
1.26 1.45
1.62 1.78 1.92
2.06
2.18
2.30
4.8
.75
1.06
1.29
1.49
1.67
1.83
1.98
2.11
2. 24
2.36
5.0
.77
1.09
1.33
1. 54
1.72
1.88 2.03
2. 17
2.30
2.43
5.2
.79
1.12
1.37
1.58
1.76
1.93
2.09
2.23
2.37
2.49
5.4
.81
1. 14
1.40
1.62
1.81 1.98
2.14
2.29
2.43
2. 56
5.6
.83
1. 17
1.43
1.66
1.85
2.03
2. 19
2.34
2.49
2.62
5.8
.85
1.20
1.47 1.70 1.90
2.08
2.24
2.40
2. 54
2.68
6.0
.87
1.23
1.50
1.73
1.94 2.12
2.29
2.45
2.60
2.74
6.2
.89
1.25
1. 54
1.77
1.98
2.17
2.35
2. 51
2.66
2.80
6.4
.91
1.28
1. 57
1.81
2.02
2.22
2.40
2.56
2.72
2.86
6.6
.92
1.31
1.60
1.85 2.07
2.26
2.45
2. 61
2.77
2.92
6.8
.94
1.33
1.63
1.89
2.11
2.31
2.49
2.67
2.83
2.98
7.0
.96
1.36
1.66
1.92
2. 15
2.35
2.54
2.72
2.88
3.04
7.5
1.01
1.42 1.74
2.01
2.25
2.47 2.66
2.85
3.02
3. 18
8.0
1.05
1.49
1.82
2.10
2.35 2.57 2.78
2.97
3. 15
3.32
8.5
1.09
1.55
1.90
2. 19
2.45
2.68 2.89
3.09
3.28
3.46
9.0
1. 14
1. 61
1.97
2.27
2.54
2.78
3.01
3.21 3.41
3.59
9.5
3.73
1. 18
3.53
1.67
3.33
2.04
3. 12
2.36
2.89
2.63
HYDRAULIC TABLES
447
Table 35.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.040—Continued

.00055
.00060
|
.00065 .00070.00075
.00080.00085.00090.00095 .00100
|
T
0.2
0.30
0.31
0.32 0.34 0.35
0.36
0.37
0.38 0.39
0.40
0.4
.47
.49
51
.53
.55
.57
.59
.61
.62
.64
0.6
.62
.65
.67
.70
.72
.75
.77 .79
.81
.84
•
0.8
.75
.78
.82
.85
.88
.91
.93
.96
.99
1.01
1.0
.87
.91
.95
.98
1.02
1. 05
1.08
1.11
1. 15
1. 17
1.2
.98
1.03
1. 07
1. 11
1. 15
1. 19
1. 22
1.26
1.29
1.33
1.4
1.09
1. 14
1. 19
1. 23
1.27
1. 31
1.36
1.39
1. 43
1.47
1.6
1. 19
1.24
1.30
1.34
1.39
1. 44
1.48
1.52
1.57
1. 61
1.8
1.29
1. 35
1.40
1.45
1.51
1.55
1.60
1.65
1. 69
1.74
2.0
1.38
1. 44
1.50
1.56
1.62
1.67
1.72
1.77
1.82
1.86
2.2
1.47
1.54
1.60
1.66
1. 72
1.78
1.83
1.89
1.94
1.99
2.4 1.56
1.63
1.70
1.76
1.82
1.88
1.94
2.00
2.05
2. 11
2.6 1.65
1.72 1.79
1.86
1.92
1.99
2.05
2. 11
2. 17
2.22
2.8 1.73
1.81
1.88
1.95
2.02
2.09
2. 15
2. 21
2.27
2.33
3.0
1.81
1.89
1.97
2.04
2. 12
2.19
2.25
2.32
2.38
2. 44
3.2
1.89
1.98
2.06
2. 13
2. 21
2.28
2.35
2.42
2.49
2.55
3.4
1.97
2.06
2. 14
2. 22
2.30
2.38
2. 45
2.52
2.59
2, 66
3.6
2.05
2. 14
2. 22
2.31
2.39
2.47
2.54 2.62
2.69
2.76
3.8
2. 12
2. 22
2.31
2.39
2.48 2.56
2.64
2.71
2.79
2.86
4.0
2.20
2.29
2. 39
2. 48
2.56
2.65
2.73
2.81
2.89
2.96
4.2
2. 27
2.37
2.47
2.56
2.65
2.74
2.82
2.90
2.98
3.06
4.4
2.34
2. 44
2. 54
2.64
2.73
2.82 2.91
2.99
3. 07
3. 15
4.6
2. 41
2.52
2.62
2.72
2.81 2.91
3.00
3.08
3. 17
3. 25
4.8
2.48
2,59
2.70
2.80 2.90
2.99
3.08
3. 17
3. 26
3.34
5.0
2.55
2.66
2.77
2.87
2.97
3.07
3. 17
3. 26
3.35
3. 44
5.2
2.62
2.73
2. 84
2.95
3.05
3. 15
3.25
3.35
3. 44
3.53
5.4
2.68
2.80
2.92
3.03
3. 13
3.23
3.33
3. 43
3.52
3.62
5.6 2.75
2.87
2.99
3. 10
3. 21
3.31
3.42
3. 51
3.61
3.70
5.8
2.81
2.94
3.06
3. 17
3. 28
3.39
3.50
3.60
3.70
3.79
6.0
2.88
3.00
3. 13
3. 25
3.36
3.47
3. 58
3. 68
3.78
3.88
6.2
2.94
3. 07
3.20
3.32
3.43
3.55
3.66
3.76
3.86
3.96
6.4
3.00
3. 14
3. 26
3.39
3.51 3.62
3.73
3.84
3.95
4.05
6.6
3. 07
3.20
3.33
3. 46
3.58 3.70 3.81
3.92
4.03
4. 13
6.8
3. 13
3.27
3.40
3.53
3.65
3.77
3.89
4.00
4. 11
4. 22
7.0
3. 19
3.33
3. 47
3.60
3.72
3.85
3.96
4.08
4. 19
4.30
7.5
3.34
3.49
3.63
3.77
3.90
4. 03
4. 15
4. 27
4.39
4.50
8.0
3.48
3.64
3.79
3.93
4. 07
4.20
4. 33
4. 46
4.58
4.70
8.5
3.63
3.79
3.94
4.09
4. 24
4. 38
4.51
.4.64
4.77
4.89
9.0 3.77
3.94
4. 10
4. 25
4.40
4. 55
4.69
4.82
4.95
5.08
9.5
5. 27
3.91
5. 14
4.08
5.00
4. 25
4.86
4. 41
4.71
4.56
448
HYDRAULIC TABLES
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.040-Continued


.0010
.0015
.0020
.0025 .0030 .0035
.0040
.0045
.0050
T
0.2
0.40
049
0.57
0.64
0.70
0.75
0.80
0.85
0.90
0.4
.64
.78
.90
1.01
1. 10
1. 19
1. 28
1.35
1. 43
0.6
84
1. 02
1. 18
1.32
1.45
1.56
1.67
1.77
•
1.87
0.8
1.01
1.24
1.43
1.60
1.75
1.89
2.02
2.15
2.26
1.0
1.17
1. 44
1.66
1.86
2.03
2.20
2.35
2.49
2. 63
1.2
1.33
1.62
1.88
2. 10
2.30
2.48
2.65
2.81
2.97
1.4
1.47
1.80
2.08
2.32
2.55
2.75
2.94
3. 12
3.29
1.6
1.61
1.97
2.27
2. 54
2.78
3.01
3. 21
3.41
3.59
1.8
1. 74
2. 13
2.46
2.75
3.01
3.25
3.48
3.69
3.89
2.0
1.86
2. 28
2. 64
2.95
3.23
3.49
3.73
3.96
4. 17
2.2
1.99
2.43
2. 81
3. 14
3. 44
3.72
3.97
4. 22
4. 44
2.4
2. 11
2.58
2.98
3.33
3.65
3.94
4. 21
4.47
4.71
2.6
2. 22
2.72
3. 14
3. 51
3.85
4. 16
4. 44
4.71
4.97
2.8
2.33
2.86
3.30
3.69
4.04
4.37
4. 67
4.95
5. 22
3.0
2. 44
2.99
3.46
3.86
4. 23
4.57
4.89
5.18
5.46
3.2
2.55
3. 12
3.61
4.03
4.42
4.77
5. 10
5. 41
5.70
3.4
2.66
3.25
3.76
4.20
4.60
4. 97
5.31
5. 63
5.94
3.6 2.76
3.38
3.90
4.36
4.78
5. 16
5. 52
5.85
6. 17
3.8
2.86
3.50
4.05
4.52
4.95
5.35
5.72
6.07
6.40
4.0
2.96
3.63
4. 19
4.68
5. 13
5. 54
5.92
6. 28
6.62
4.2
3.06
3.75
4.32
4.84
5.30
5. 72
6. 12
6. 49
6.84
4.4
3. 15
3.86
4. 46
4.99
5.46
5.90
6.31
6. 69
7.05
4.6
3. 25
3.98
4.60
5. 14
5. 63
6.08
6.50
6.89
7.27
4.8
3.34
4.09
4.73
5. 29
5.79
6. 25
6.69
7.09
7.47
5.0
3.44
4. 21
4.86
5.43
5.95
6.43
6.87
7.29
7.68
5.2
3.53
4.32
4.99
5.58
6. 11
6.60
7.05
7.48
7.88
5.4 3.62
4.43
5. 11
5.72
6. 26
6.76
7.23
7.67
8.09
5.6
3.70
4.54
5. 24
5.86
6.42
6.93
7.41
7.86
8.28
5.8 3.79 4.64
5.36
6.00
6. 57
7.09
7.58
8.04
8.48
6.0
3.88
4.75
5.49
6. 13
6.72
7.26
7.76
8.23
8.67
6.2
3.96 4.86
5. 61
6. 27
6.87
7.42
7.93
8.41
8.87
6.4
4.05
4.96
5.73
6.40
7.01
7.58
8.10 8.59
9.06
6.6
4. 13
5.06
5.85
6. 54
7. 16
7.73
8.27
8.77
9.24
6.8
4. 22
5. 16
5.96
6. 67
7.30
7.89
8.43
8.94
9.43
7.0
4.30
5.27
6.08
6.80
7.45
8.04
8.60
9. 12
9.61
7.5 4.50
5. 51
6.37
7.12
7.80
8.42
9.00
9.55
10.07
8.0
4.70
5.76
6.65
7.43
8. 14
8.79
9.40
9.97
10. 51
8.5
4.89
-5.99
6.92
7.74
8.47
9. 15
9.79
10.38
10.94
9.0
5.08
6. 23
7. 19
8.04
8.80
9.51
10. 17
10.78
11.37
9.5
11.78
•
5. 27
11. 18
6.45
10. 54
9.86
7.45 8.33
9. 13
HYDRAULIC TABLES
449
Table 35.--Velocity of water, v, in feet per sccond, based on
1.486
n
Manning's formula v= r2/31/2
n =.040-Continued

.0055 .0060
.0065 .0070
.0075 .0080 .0085 .0090
.0095 .0100
T
0.2
0.94
0.98
1.02 1.06
1.10
1. 14
1. 17
1. 21
1. 24
1.27
0.4
1.50
1.56
1.63
1.69
1.75
1.80
1.86
1.91
1.97
2.02
0.6
1.96
2.05
2. 13
2. 21
2.29
2.36
2.44
2.51
2.58
2.64
0.8
2.37
2.48
2.58
2.68
2.77
2.86
2.95
3.04
3. 12
3. 20
1.0
2.76
2.88
3.00
3.11
3. 22
3.32
3.43
3.52
3.62
3.72
1.2
3.11
3.25
3.38
3. 51
3.63
3.75
3.87
3.98
4.09
4. 20
1. 4
3.45
3.60
3.75
3.89
4.03
4. 16
4. 29
4. 41
4.53
4. 65
1.6
3.77
3.94
4. 10
4. 25
4.40
4.55
4.69
4.82
4.95
5.08
1.8
4.08
4. 26
4.43
4.60
4.76
4.92
5.07
5. 22
5.36
5.50
2.0
4.37
4.57
4.75
4.93
5. 11
5. 27
5. 44
5.59
5.75
5.90
2.2
4. 66
4.87
5.07
5. 26
5. 44
5. 62
5.79
5.96
6. 12
6.28
2.4
4.94
5. 16
5.37
5.57
5.77
5.96❘
6.14
6.32
6.49
6.66
2.6
5. 21
5. 44
5.66
5.88
6.08
6. 28
6. 48
6.66
6.85
7.02
2.8
5.47
5.72
5.95
6. 17
6.39
6.60
6.80
7.00 7.19
7.38
es en en en es
3.0
3.2
3.4
3.6
3.8
0246D 00
5.73
5.99
6. 23
6.47
6. 69
6. 91
7.12
7.33
7.53
7.73
5.98
6.25
6.50
6.75
6.99
7.22
7.44
7.65
7.86
8.07
6. 23
6. 51
6.77
7.03
7.27 7.51 7.74
7.97
8. 19
8.40
6.47
6.76
7.04
7.30 7.56
7.80 8.05
8.28
8.51
8.73
6.71
7.01
7.29 7.57 7.83
8.09 8.34
8.58
8.82
9.05
4.0 6.94
7.25
7.55
7.83
8.11
8.37
8.63
8.88
9. 12
9.36
4.2 7.17
7.49
7.80
8.09
8.38
8.65
8.92
9. 17
9.43
9.67
4.4 7.40
7.73
8.04 8.35
8.64
8.92
9.20
9.46
9.72
9.98
4.6 7.62
7.96
8.28
8.60 8.90
9.19 9.47
9.75
10.02
10. 28
4.8
7.84
8. 19 8.52 8.84
9.15
9.46 9.75
10.03
10.30
10.57
16 16 16 16 16
5.0
8.06
8.41 8.76
9.09
9.41
9.72
10.01
10.31
10.59
10.86
5.2
8.27
8.64 8.99
9.33
9.66
9.97
10. 28
10.58
10.87
11. 15
5.4
8.48
8.86 9.22 9.57
9.90
10. 23
10. 54
10.85
11. 15
11.43
5.6 8.69
9.07 9.45
9.80
10. 15
10.48
10.80
11.11
11.42
11.72
5.8
8.89
9.29 9.67
10.03
10.39
10.73
11.06 11.38
11.69
11.99
6.0 9.10
9.50
9.89
10.26
10.62
10.97
11.31
11.64
11.96
12.27
6.2
9.30
9.71
10. 11
10.49
10.86
11. 21
11.56
11.89
12. 22
12.54
6.4 9.50
9.92
10.32
10. 71
11.09
11.45
11.81
12. 15
12.48
12.81
6.6
6.8 9.89
9.69
10. 13
10.54
10.94
11.32 11.69
12.05
12.40
12. 74
13.07
10.33
10.75
11. 16
11.55
11.93
12.29
12.65
13.00
13.33
7.0
10.08
10.53 10.96 11.37
11.77
12. 16
12. 53
12.90
13.25
13.59
7.5
10.56
8.0 11.02
8.5 11.48
9.0 11.92
11.03 11.48 11.91 12.33
11.51 11.98 12.43
11.99 12.47 12.95 13.40
12.45 12.96 13.45 13.92
12.73
13. 12
13.50
13.87
14. 23
12.87
13. 29
13.70
14. 10
14. 48
14.86
13.84
14. 27
14.68
15.08
15. 47
14.38
14.82
15.25
15.67
16.07
9.5
16.66
12. 36
16. 24
12.91 13.43 13.94 14.43
15.36 15.81
14.90
450
HYDRAULIC TABLES
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 1-2/31/2
n
n=.040-Continued
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
0.2
1.27
1.80
2.20
2.54
2.84
3. 11
3.36
3.59
3. 81
4.02
0.4
2.02
2.85
3.49
4. 03
4. 51
4.94
5.34
5.70
6.05
6.38
0.6
2.64
3.74
4.58
5. 29
5.91
6. 47
6.99
7.47
7.93
8.36
0.8
3. 20
4.53
5.55
6.40
7.16
7.84
8.47
9.06
9.60
10.12
1.0
3.72
5. 25
6. 43
7.43
8.31
9.10
9.83
10.51
11. 15
11.75
1.2
4. 20
5.93
7.27
8.39
9.38
10.28
11. 10
11.87
12.59
13. 27
1.4
4. 65
6. 57
8.05
9.30
10.40
11. 39
12.30
13. 15
13.95
14.70
1.6
5.08
7.19
8.80
10. 16
11. 36
12.45
13. 45
14.37
15. 25
16. 07
1.8
5.50
7.77
9.52
10.99
12. 29
13. 47
14. 54
15.55
16.49
17.38
2.0
5.90
8. 34
10. 21
11.79
13. 19
14.45
15.60
16.68
17.69
18.65
2.2
6. 28
8.89
10.88
12.57
14.05
15.39
16. 63
17.77
18.85
19.87
2.4
6. 66
9.42
11.53
13. 32
14.89
16. 31
17.62
18.84
19.98
21.06
2.6
7.02
9.93
12.17
14. 05
15.71
17. 21
18.58
19.87
21.07
22.21
2.8
7.38
10.44
12.78
14. 76
16.50
18.08
19.53 20.87
22. 14
23.34
3.0
3.2
3.4
3.6
3.8
0246 0D
7.73
10.93
13.38
15.46
17.28
18.93
20.45
21.86
23. 18
24. 44
8.07
11. 41
13.97
16. 13
18.04
19.76
21.34
22.82
24. 20
25.51
8.40
11.88
14.55
16.80
18.78
20.58
22. 22
23.76
25.20
26.56
8.73
12.34
15. 11
17.45
19. 51
21.37
23.09
24. 68
26. 18
27.59
9.05
12.79
15.67
18.09
20. 23
22. 16
23.93
25.59
27.14
28.61
4.0
9.36
13. 24
16. 21
18.72
20.93
22.93
24.77
26.48 28.08
29.60
4.2
9.67
13.68
16. 75
19.34
21.62
23. 69
25.59
27.35
29.01
30.58
4. 4
9.98
14. 11
17. 28
19.95
22.31
24. 43
26.39
28. 21
29.93 31.54
4. 6
10. 28
14.53
17.80
20.55
22.98
25. 17
27.19
29.06
30.83
32.49
4.8
10.57
14.95
18.31
21. 14
23. 64
25.89
27.97 29.90 31.71 33.43
5.0
10.86
15. 36
18.81
21.73
24. 29
26.61
28.74 30.72
32.59
34.35
5.2
11. 15
15.77
19. 31
22.30 | 24.93
27.31
29.50
31.54
33.45
35.26
5.4
11.43
16. 17
19.81
22.87 | 25. 57
28.01
30.25
32.34
34.30
36. 16
5.6
11.72
16. 57
20. 29
23.43 | 26. 20
28.70
31.00
33. 14
35. 15
37.05
5.8
11.99
16.96
20.77
23.99 26.82
29.38 31.73
33.92
35.98
37.92
6.0
12. 27
17.35
21. 25
24.53
27.43
30.05 | 32.45
34.70
36.80
38.79
6.2
12. 54
17.73
21.72
25.08
28.04 30.71 33. 17
35.46 37.61
39.65
6. 4
12.81
18. 11
22. 18 25. 61
28.63
31.37
33.88
36.22
38.42
40.50
6.6
13. 07
18. 49
22.64
26. 14
29. 23
32.02
34.58
36.97
39. 21
41.34
6.8
13.33
18.86
23.10
26.67
29.82
32.66
35.28
37.71
40.00
42. 17
7.0
13.59
19. 23
23.55
27.19 30.40 33.30 35.97
38.45
40.78
42.99
7.5
14. 23
20. 13
24. 65
28.47
31.83
34.87 37.66
40.26
42.70
45.01
8.0
14.86
21.02
25.74
29.72
33. 23
36.40
39.32
42. 03
44.58
46.99
8.5
15. 47
21.88 26.80
30.95
34.60
37.90 40.94
43.76
46.42
48.93
9.0
16.07
22.73
27.84 32. 15
35.94 39.37
42.53
45.46
48. 22
50.83
9.5
52.70
16.66
49.99
23.57 28.86 33.33
47. 13
37.26
40.82 44.09
HYDRAULIC TABLES
451
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
.00005
.00010
T
n=.040—Continued


.00930 0035
.00015.00020.00025.00030.00035 | .00040 | .00045 | .00050
27
28
29
30
33
35
36
38
39
PIRRI 2**** 222** ***** ***** *888
1.22
1.72 2.11
2. 44
2.73
2.99
3.23
3.45
3.66
3.86
1.30
1.84 2.25
2.60
2.91
3. 18
3. 44
3.67
3.90
4. 11
12 1.38
1.95
2.38
2.75
3.08
3.37
3.64
3.89
4. 13
4. 35
13
1.45
2.05
2.52
2.90
3. 25
3. 56
3.84
4. 11
4. 36
4. 59
14
1. 53
2. 16
2. 64
3.05
3. 41
3.74
4.04
4. 32
4.58
4.83
1.60
2.26
2.77
3. 20
3. 57
3.91
4. 23
4. 52
4.79
5.05
16
1.67
2.36
2.89
3.34
3.73
4.09
4.41
4.72
5.00
5. 27
17
1.74
2.46
3.01
3.47
3.88
4. 25
4.60
4.91
5. 21
5. 49
18 1.80
2.55
3. 13
3. 61
4.03
4.42
4.77
5. 10
5.41
5.71
19
1.87
2.65
3. 24
3.74
4. 18
4. 58
4.95
5.29
5.61
5.91
20
1.94
2.74
3.35
3.87
4.33
4.74
5. 12
5. 47
5.81
6. 12
21
2.00
2.83 3.46
4.00
4.47
4.90
5.29
5.66
6.00
6.32
2.06
2.92 3.57
4. 12
4. 61
5.05
5.46
5.83
6. 19
6. 52
23
2. 12
3.00 3.68
4.25
4.75
5. 20
5. 62
6. 01
6.37
6.72
24
2. 19
3.09
3.79
4.37
4.89
5. 35
5.78
6. 18
6. 56
6.91
25 2.25
3.18
3.89
4.49
5.02
5.50
5.94
6.35
6. 74
7. 10
26
2.31
3.26
3.99
4.61
5. 16
5.65
6. 10
6. 52
6.92
7.29
2. 36
3. 34
4.09
4.73
5.29
5.79
6. 26
6. 69
7.09
7.48
2.42
3.43
4.20
4.84
5. 42
5.93
6.41
6.85
7.27
7.66
2.48
3. 51
4. 29
4.96
5. 54
6.07
6.56
7.01
7.44
7.84
2.54
3.59
4.39
5.07
5.67
6. 21
6.71 7.17
7.61
8.02
31 2.59
3. 67
4.49
5. 18
5.80
6. 35
6.86 7.33
7.78
8.20
32 2.65
3.74
4. 59
5.30
5.92
6.49
7.01
7.49
7.94
8.37
2.70
3.82
4.68
5. 41
6.04
6.62 7.15
7.64
8. 11
8.55
34
2.76
3.90
4.78
5. 51
6. 16
6.75
7.29
7.80
8.27
8.72
2.81
3.98
4.87
5. 62
6.29
6.88
7.44
7.95
8.43
8.89
2.86
4.05
4.96
5. 73
6.40
7.02
7.58
8. 10
8.59
9.06
37 2.92
4. 13
5.05
5. 83
6. 52
7. 14
7.72
8.25
8.75 9.22
2.97
4. 20
5. 14
5.94
6. 64
7.27
7.86
8.40
8.91
9.39
3.02
4. 27
5. 23
6.04
6.76
7.40
7.99
8.54
9.06
9.55
40
3.07
4.35
5. 32
6. 14
6.87
7.53
8. 13
8.69
9.22
9.72
41
3. 12
4. 42
5. 41
6.25
6.98
7.65
8.26
8.83
9.37
9.88
42
3. 17
4.49
5.50
6.35
7.10 7.77
8.40
8.98
9.52
10.04
43
3.22
4. 56
5. 58
6.45
7.21 7.90
8.53
9. 12
9.67
10. 20
44
3.27
4.63
5.67
6.55
7.32
8.02 8.66
9.26
9.82
10.35
45
3. 32
4.70
5.76
6.65
7.43
8. 14 8.79
9.40
9.97
10. 51
48
3.37
4.77
5.84
6. 74
7.54
8.26 8.92
9.54
10. 12
10. 66
47
3. 42
4. 84
5.93
6.84
7.65
8.38
48
3.47
4.91 6.01
49
3.52
4.97 6.09
6.94
7.04 7.87
9.05 9.68
7.76 8.50 9.18 9.81 10.41
8.62 9.31 9.95 10.55
10.26
10.82
10.97
11. 12
50
11. 27
3.57
9.43 10.08 10.70
5.04 6. 18
8.73
7. 13
7.97
452
HYDRAULIC TABLES
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.040-Continued



8
.00055
.00060.00065.00070.00075.00080
.00065.00070 | .00075 | .00080 | .00085| .00090
.00085 .00090.00095 .00100
|
T
10
4.04
4. 22
4.40
4.56 4.72
4.88
5.03
5. 17
5.31
5. 45
11
4.31
4.50
4.68
4.86
5.03
5.20
5.36
5. 51
5.66
5.81
12
4.57
4. 77
4.96
5. 15
5.33
5. 51
5.68
5. 84
6.00
6. 16
13
4.82
5.03
5. 24
5.43
5.62
5.81
5.99
6. 16
6. 33
6. 50
14
5.06
5. 29
5.50
5.71
5.91
6.10
6.29
6.47
6.65
6.82
15
5.30
5.53
5.76
5.98
6. 19
6.39
6. 59
6.78
6.96
7.15
16
5.53
5.78
6.01
6. 24
6. 46
6. 67
6.88
7.08 7.27
7.46
17 5.76
6.02
6. 26
6.50
6.73
6.95
7.16
7.37 7.57
7.77
18
5.98
6. 25
6. 51
6.75
6.99
7.22 7.44
7.65 7.86
8.07
19
6.20
6.48
6.74
7.00
7.24 7.48
7.71
7.94
8.15
8.36
20
6. 42
6.70
6.98
7.24
7.50
7.74
7.98
8. 21
8. 44
8.66
21
6.63
6.93
7.21
7.48
7.74
8.00
8. 24
8.48
8.72
8.94
22
6.84
7.14
7.44 7.72
7.99
8.25
8.50
8.75
8.99
9.22
23 7.05
7.36
7.66
7.95
8. 23
8.50
8.76
9.01
9.26
9.50
24
7.25
7.57
7.88
8. 18
8.47
8.74
9.01
9.27
9.53
9.77
30
31
32
33
35
36
REAR MAA** ---* ***
KKK
25 7.45
7.78
8.10
8.40
8.70
8.98
9.26
9.53
9.79
10.04
26 7.65
7.84
27
28 8.03
29
7.99 8.31
8.63
8.93 9.22
9.51
9.78
10.05
10.31
8. 19
8.52
8.85
9.16
9.46
9.75 10.03 10.31
10.57
8.39 8.73
9.06
9.38
9.69
9.99❘ 10.28 10. 56
10.83
8.22
8.59 8.94
9.28
9.60
9.92
10.22 | 10. 52 | 10.81
11.09
8.41
8.79 9.14
9.49
9.82
10. 14
10.46 10.76
11.06
11.34
8.60
8.98 9.35
9.70 | 10.04
10.37
10.69
11.00
11.30
11.59
8.78 9.17
9.55
9.91 10.25
10.59
10.92 11. 23
11. 54
11.84
8.96 9.36 9.74
10.11
10.47
10.81
11.14
11.47
11.78
12.09
34
9. 14
9.55 9.94
10.32
10.68
11.03
11.37
11.70
12.02
12.33
9.32 9.74 10.13
10.52
10.89
11. 24
11.59
11.93 12.25
12.57
9.50
9.92 10.33 10.72
11.09
11.46
11.81
12.15
12.48
12.81
37 9.67
10.10 10.52
10.91
11.30
11.67
12.03
12. 38
12.71
13.04
39
38 9.85
10.02
10. 29
10.47
10.71 11.11
11.50
11.88
12. 24
12.60
12.94
13.28
10.89 11.30 11.70 12.08
12.46
12.82
13. 17
13.51
40 10.19 10.64
11.08
11.50
11.90
12. 29
12.67
13.04
13. 39
13.74
41
10.36 10.82
11. 26
11.69
12. 10 | 12.49
12.88
13. 25
13. 61
13.97
42
10.53
11.00
11.44
11.88
12, 29 12.70
13.09
13.47
13.84
14. 19
43 10.69
11. 17
11.63 12.06
12.49
12.90
13. 29
13.68
14.05
14. 42
44 10.86
11. 34
11.80
12.25
12.68
13.10
13.50
13.89
14. 27
14.64
45
11.02
11.51
11.98
12. 44
12.87
13. 29
13.70
14.10
14. 49
14.86
46
11. 19
11.68
12. 16
12.62
13.06 | 13.49
13.91
14.31
14.70
15.08
47
11.35
11.85
12.34
12.80
13.25 13.68
14. 11
14. 51
14.91
15.30
48
11.51
12.02
12.51
12.98
13. 44
13.88
14. 31
14.72
15. 12
15.52
49
11.67
12. 19
12.68 13. 16
13.62
14. 07
14.50
14.92
15.33
15.73
50 11.82
15. 94
12.35
15.54
12.85 13.34
15. 13
13.81
14.70
14.26
HYDRAULIC TABLES
453
T
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/3g1/2
n
n=.040-Continued


.0010
.0015
.0020
.0025 .0030
.0035 .0040 .0045
.0050
28
31
32
33
35
36
37
38
40
41
42
43
44
CIRRI B**** 22*** *2222 A-8** *8*88 ****
10
5. 45
6.68
7.71
8.62
9. 44
10. 20
10.91
11.57
12. 19
5.81
7.12
8. 22
9.19
10.06
10.87
11.62
12. 33
12.99
12
6.16
7.54
8.71
9.74
10.67
11.52
12. 32
13.06
13.77
6.50
7.95
9.19
10.27
11. 25
12.15
12.99
13.78
14. 52
14
6.82
8.36
9.65
10.79
11.82
12.77
13.65
14.48
15. 26
15
7.15
8.75
10.10
11.30
12.38
13.37
14.29
15. 16
15.98
16
7.46
9.14
10.55
11.79
12.92
13.96
14.92
15.82
16.68
17
7.77
9. 51
10.98
12. 28
13.45
14.53
15.53
16.48
17.37
18
8.07
9.88
11.41
12.76
13.98
15. 10
16. 14
17.12
18.04
8.36
10. 24
11.83
13. 23
14.49
15. 65
16.73
17.74
18.70
20
8.66 10.60
12. 24
13.69
14.99
16. 19
17.31
18.36
19.36
21 8.94 10.95
12.65
14. 14
15. 49
16. 73
17.88
18.97
20.00
9.22
11.30
13.04
14.58
15.98
17.26
18.45
19.57
20.62
23
9.50 11.64
13. 44
15.02
16.46
17.78
19.00
20.16
21. 25
24 9.77
11.97
13.82
15.46
16.93
18. 29
19.55
20.74
21.86
25
10.04
12.30
14. 20
15.88
17.40
18.79
20.09
21. 31
22. 46
26 10.31
12.63
14.58
16.30
17.86
19.29 20.62
21.87
23.05
27
10.57
12.95
14.95
16.72
18. 31
19.78
21.15
22.43
23. 64
10.83
13. 27
15.32
17.13
18.76
20. 27
21.67
22.98
24. 22
29
11.09
13.58
15.68 17.53
19.21
20.75
22. 18
23.52
24.80
30
11. 34
13.89
16.04 17.93
19. 65
21. 22
22.68
24.06
25.36
11.59
14. 20
16.40
18.33
20.08
21.69
23. 19
24.59
25.92
11.84
14. 50
16.75
18.72
20. 51
22.15
23.68
25.12
26.48
12.09
14.80
17.09
19.11
20.93
22.61
24. 17
25.64
27.03
34 12.33
15. 10
17.44
19.49
21.36
23.07
24.66
26.15
27.57
12. 57
15.40
17.78
19.88
21.77
23.52
25. 14
26.67
28. 11
12.81
15.69 18.11 20.25
22.18
23.96
25.62
27.17
28.64
13.04
15.98
18.45
20.63
22. 59
24.40
26.09
27.67
29.17
13. 28
16. 26
18.78
21.00
23.00
24.84
26.56
28. 17
29.69
39 13. 51
16.55
19. 11
21.36
23.40
25. 28
27.02
28.66
30.21
13.74
16.83
19.43 21.73
23.80
25.71
27.48
29.15
30.72
13.97
17.11
19.75
22.09
24. 19
26. 13
27.94
29.63
31.23
14. 19
17.38 20.07
22.44
24.59
26.56
28.39
30.11
31.74
14. 42
17.66
14.64
20.39 22.80
17.93 20.71 23.15
24.97
26.98
28.84
30.59
32. 24
25.36 27.39
29.28
31.06
32.74
45
14.86
18. 20
21.02
23.50
25.74
27.81
29.73
31.53
33.23
46 15.08
18.47
21.33
23.85
26. 12
28. 22
30. 16
31.99
33.72
47 15.30
18.74 21.64
24. 19
26.50
28. 62
30.60
32. 46
34. 21
48 15.52
19.00
21.94
24.53
26.87
29.03
31.03
32.91
34.70
49
15.73
19. 27
22.25
24.87 27.25 29.43
31.46
33.37
35. 18
50
35.65
15.94
33.82
19.53
29.83 31.89
22.55
25. 21 27.62
454
HYDRAULIC TABLES
Table 35.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.040—Continued

.0055
.0060
.0065 .0070
.0075 .0080 .0085 .0090
.0095
.0100
10
11
12
13
14
15
16
17
19
20
21
24
25
26
27
30
31
32
35
36
37
38
39
40
41
42
CERAH BORÅR 272** ***** C*88* *8788 GERR
12.79
13.36
13. 90 | 14. 43
14.93
15. 42
15.90 | 16. 36
16. 81
17. 24
13.63
14. 23
14.81
15.37
15.91
16. 43
16.94
17.43
17.91
18.37
14. 44
15.08
15.70
16. 29
16.86
17.42
17.95 18.47
18.98
19. 47
15. 23
15.91
16. 56
17. 18
17.79
18.37
18.94 19.49
20.02
20.54
16.00
16.72
17.40
18.05
18.69
19.30 19.90 20.47
21.03
21.58
16.76
17.50
18. 22
18.90
19.57
20.21❘ 20.83 | 21.44
22.02
22.60
17.49
18.27
19.02
19.74
20.43 21.10 21.75 22. 38
22.99
23.59
18. 22
19.03
19.80
20.55
21. 27 | 21.97 22.64 | 23.30
23.94
24.56
18*
18.92
19. 62
19.76
20. 57
21.35
22.10 22.82 | 23.52 | 24. 21
24.87
25.52
20.49
21. 33
22.13
22. 91
23.66
24. 39
24.39
25.09
25.78
26. 45
20.30
21. 20 | 22. 07
22.90
23.71
24.48 | 25. 24
25.97
26.68
27.37
20.97
21.90 | 22.80
23. 66
24. 49
25.29
26.07
26.83
27.56
28. 28
21.63
22.59
23. 52
24.40
25. 26
26.09
26.89
27.67
28.43
29. 17
23 22.28
22.92
23. 27
24. 22
25. 14
26.02 26.87
27.70 28.50
29.28
30.05
23.94
24.92
25.86❘ 26.77 | 27.65
28.50
29.32
30. 13
30.91
23.56
24.60
25. 61
26. 57
27. 51
28.41
29. 28
30. 13
30.96
31.76
24. 18
25. 26
26. 29
27.28
28.24
29. 16
30.06
30.93 | 31.78
32.60
24.80
25.90
26.96 27.97
28.96 | 29,91
30.83
31.72
32.59
33.44
28 25.40 26.53 27.62 | 28.66 | 29.67 | 30. 64
29 26.01 27.16 28.27 29.34 30.37 | 31.36
31.58
32.50
33.39
34.26
32.33
33.27
34. 18
35.07
26.60
27.78 28.92
30.01
30.01
27. 19
28.40 29.56
30.67
31.06 | 32.08
31.75
33.07 | 34.03 34.96
35.87
32. 79
33.80
34.78 | 35.73
36.66
27.77
29.00 30.19
31. 33 | 32. 43
33.49
34.52
35.52 | 36. 50
37.44
33 28.35 29.61 30.81
34 28.92 30.20 31.43 32.62
31.98
33. 10
34. 19
35. 24
36. 26 37.25
38.22
33.77
34.87
35.95
36. 99
36.99 | 38,00
38.99
29.48 30.79 32.05
33. 26
34.42
35.55
36.65
37.71 38.74
39.75
30.04 31.37 32.66
33.89
35.08
36. 23
37.34
38.43
39.48
40.50
30.59
31.95 33.26
34.51
35.72
36.90
38.03
39. 13
40. 21
41.25
31. 14
32.53
33.85
35. 13
36.36
37.56
38.71
39.84
40.93
41.99
31.68
33.09
34. 44
35.75
37.00
38.21
39.39
40.53
41, 64
42.72
32. 22
33.66 35.03
36.35 37.63
38.86
40.06 | 41.22
42.35
43.45
32.76
34.22
35.61
36.96 38.25
39.51
40.72 41.91
43.05
44. 17
33.29
34.77
36. 19
37.56
38.87
40. 15
41.38
42.58 43.75
44.89
43 33.82
35. 32
36.76
38. 15
39.49
40.78
42.04 43.26 | 44. 44
45.60
44 34.34
35.86
37.33
38.74
40. 10
41. 41
42.69 43.93
45. 13
46.30
45
34. 86
36.41 37.89
39.32 40.70
|
42.04
43.33
44.59 45.81
47.00
46
35.37
36.94 38.45 39.90 41.30
42.66
43.97
45.25 46.49
47.69
47
38.53
35.88 37.48 39.01 40.48
48 36.39 38.01
49 36.89
41.90
43. 27
44.61
45.90
47. 16
48.38
39.56 41.05 42.49
40. 11 41.62
43.89
45. 24
46.55 47.82
49.07
43.08
44.49
45.86
47. 19 | 48. 49
49.75
50
50.42
37.39
49. 14
39.06 40.65 42. 18
46.49 47.83
43.67
45. 10
HYDRAULIC TABLES
455
Table 35.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= ·72/31/2
n
n=.040—Continued

8
.01
.02
.03
.04 .05
.06
.07 .08
.09
.10
T
PERRI 49===
10
17.24
24.39
29.87 34.49
38.56
42.24
45.62
48.77
51.73
54.53
11
18. 37
25.99 31.83
36.75
41. 09
45. 01
48. 61
51.97
55. 12
58. 11
12
19. 47
27.54
33.73
38.94
43. 54
47.70
51.52
55. 08
58.42
61.58
13
20.54
29.05
35.58
41.08
45.93
50.31
54. 34
58.09
61.62
64.95
14
21.58
30.52
37.38
43. 16
48. 25
52.86
57.09
61.04
64.74 68. 24
15 22.60
31.95
39. 14
45. 19
50.52
55.35
59.78
63.91
67.79|
71.45
16
23.59
33.36
40.86
47. 18
52.75
57.78
62.41
66. 72
70.77
74.59
17
24. 56
34. 74
42.54
49. 12
54.92
60. 16
64.98
69.47
73.69 77.67
18
25.52
36.08
44. 19
51.03
57.05
62.50
67.51
72. 17
76.55 80.69
19
26.45
37.41
45.82
52.90
59. 15
64.79
69.99
74.82
79.36) 83.65
31
32
33
36
22222 22222 A-*** -8588 94331 495G9 8
20
27.37
38.71
47.41
54.74
61. 21
67.05
72.42
77.42
82. 12
86.56
21
28. 28
39.99 48.98 56.55
63.23
69. 27
74.81
79.98
84.83
89.42
29.17
41.25 50.52
58.34
65. 22
71.45
77.17
82.50
87. 50
92.24
24
23 30.05
30.91
42.49
52.04
60.09
67. 18
73.60
79.49
84.98
90. 14
95.01
43. 71
53. 54
61.82
69. 12
75.71
81.78 87.43
92.73
97.75
25
31.76
44.92
55. 01
63.53
71. 02
77.80
84.04 89.84
95, 29
100. 44
26
32. 60
46. 11
56.47
65. 21
72.91
79.86 86.26
92.22
97.81
103. 10
27
33.44
47.28
57.91
66.87
74, 76
81.90
88.46
94.57 100. 31
105.73
28
34.26
48. 44
59.33
68.51
76. 60|
83.91
90.63
29
35. 07
49.59
60.74
70. 13
78.41
85,89
96.89 102.77 108.33
92.78 99.18 105. 20
110.89
30
35.87
50.72
62. 13
71. 74
80.20
87.86
94.90 101.45 107, 60
113.42
36. 66
51.85
63.50
73.32
81.98
89.80
96.99 103.69 109, 98
115.93
37.44
52.96
64.86
74.89
83.73
91.72
99.07 105.91
112. 33
118. 41
38. 22
54. 05
66. 20
76.44
85.46
93.62 101. 12
108. 11
114. 66
120.87
34
38.99
55. 14
67.53
77.98
87. 18
95.50 103.16
110. 28
116.97
123. 29
35
39.75
56.22
68.85
79.50
88.88
97.37 105. 17
112. 43
119. 25
125. 70
40.50
57.28
70.15
81.01
90.57
99.21
107. 16
114. 56
121. 51
128. 08
37
41. 25
58.34
71. 45
82.50
92. 24 101.04 109. 14
116.67
123.75
130.44
38
41.99
59.38
72.73
83.98
93.89 102.85 111. 10
118. 77
125.97 132.78
39
42.72
60.42 74.00
85.45
95.53 104.65 113.04
120.84
128. 17
135. 10
40
43.45
61.45
75. 26
86.90
97. 16
106.43
114.96
122. 90
130. 35
137.40
44. 17
62. 47
76. 51
88.34
98.77 108. 20
116. 87
124. 94
132. 52
139.68
42 44, 89
63.48
77.75
89.77 100.37 109.95
118. 76
126. 96
134. 66
141.95
45, 60
64.48
78.98
91. 19 101.96 111.69
120.64
128 97
136. 79
144. 19
44
46.30
65. 48
80.20
92.60 103. 53
113.41
122.50
130.96
138.90
146. 42
47.00 66.47 81.41
94.00 105. 10
115. 13|
124. 35
132.94
141.00 148. 63
46 47.69 67.45 82.61
95.39 106.65
116.83
126. 19
134. 90
143.08
150. 82
47
48
49.07
48.38 68.42 83.80
69.39 84.99
96.77 108. 19
118. 51
128.01
136. 85
145. 15
153.00
98. 13 109.72
120. 19
129.82
138. 78
147. 20
155. 16
49.75 70.35 86. 16
99.49 111. 23
121.85
131.61
140.70
149. 24
157.31
50
50.42 71.31
87.33 100.84 112. 74 123. 50 133.40 142, 61 151, 26 159. 44
456
HYDRAULIC TABLES
Table 36.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.045

.00005
010
9015
0025 00030
.0001000015 | .00020.00025.00030.00035.00040.00045 | .00050
00040
T
0.2
0.08 0.11
0.14 0.16
0.4
.13
.18
.22
.25 .28 .31
0.18 0.20 0.21 0.23
0.24
0.25
.34 .36
.38
.40
0.6
.17
.23
.29
.33
.37
.41
.44
.47
.50
.53
0.8
.20
.28
.35
.40
.45
.49
.53
.57
.60
.64
1.0
1.2
1.4
1.6
1.8
0240 ∞
23
.33
•
.40
.47
.52
.57
.62
.66
.70
.74
.26
.37
.46
.53
.59
.65
.70
.75
.79
.83
.29
.41
.51
.58
.65
.72
.77
.83
.88
.92
.32
.45
.55
.64
.71
.78
.85
.90
.96
1.01
.35
.49
.60
.69
.77
.85
.91
.98
1.04
1.09
2.0
.37
.52
64
•
.74
.83
.91
.98
1.05
1.11
1.17
2.2
.39
.56
.68
.79
.88
.97
1.05
1.12
1.18
1.25
2.4
42
.59
.72 .84
.94
1.03
1.11
1.18 1.26
1.32
2.6
.44
•
.62 .76
.88
.99
1.08
1.17
1.25
1.32
1.40
2.8
.46
.66 .80
.93
1.04
1.14
1.23
1.31
1.39
1.47
3.0
.49
.69
.84
.97
1.09
1.19
1.29
1.37
1.46
1.54
3.2
.51
.72
.88
1.01
1.13 1.24
1.34
1.43
1.52
1.60
3.4
.53
.75
.91
1.06
1.18
1.29
1.40
1.49
1.58
1.67
3. 6
.55
.78
.95
1.10
1.23
1.34
1.45 1.55
1.65
1.73
3.8
.57
.80
.98
1.14
1.27
1.39
1.50 1.61
1.71
1.80
4.0
.59
.83
1.02
1.18
1.32
1.44
1.56
1.66
1.77
1.86
4. 2
.61
.86
1.05 1.22
1.36
1.49
1.61 1.72
1.82
1.92
4.4
.63
.89
1.09 1.25
1.40
1.54
1.66 1.77
1.88
1.98
4.6
.65
.91
1.12 1.29
1.44 1.58
1.71 1.83
1.94
2.04
4.8
.66
94 1.15
·
1.33
1.49
1.63
1.76
1.88 1.99
2.10
5.0
.68
.97
1.18
1.37
1.53
1.67
1.81
1.93
2.05
2. 16
5. 2
.70
.99
1.21
1.40
* 1.57
1.72
1.85
1.98
2.10
2.22
5.4
.72
1.02
1.24 1.44
1.61
1.76
1.90
2.03
2. 16
2.27
5. 6
.74
1.04
1.28
1.47
1.65
1.80
1.95
2.08
2. 21
2.33
5.8
.75
1.07 1.31
1.51
1.69
1.85
1.99
2. 13
2.26
2.38
6.0
.77
1.09 1.34
1.54
1.72
1.89
2.04
2. 18
2. 31
2.44
6.2
.79
1.11
1.36 1.58
1.76
1.93
2.08
2. 23
2.36
2.49
6. 4
.80
1.14
1.39
1.61
1.80
1.97
2. 13
2. 28
2.41
2.55
6. 6
.82
1.16 1.42
1.64
1.84
2.01
2. 17
2.32
2.46
6.8
2.60
.84
1.19
1.45
1.68
1.87
2.05
2. 22
2.37
2. 51
2.65
7.0
.85
1.21
1.48 1.71
1.91
2.09
2. 26
2. 42
2.56
2.70
7.5
.89
1.27
1.55
1.79
2.00
2. 19
2. 37
2.53
2.68
2.83
8.0
.93
1.32
1.62 1.87
2. 09
2. 29
2.47
2. 64
2.80
2.95
8.5
.97
1.38
1.68 1.95
2.17
2.38
2.57
2.75
2.92
3.08
9.0
1.01
1.43
1.75 2.02
2.26
2.47
2.67
2.86
3.03
3.19
9.5
3.31
1.05
3. 14
1.48
2.96
1.81 2.09 2.34
2.77
2.57
HYDRAULIC TABLES
457
Table 36.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.045—Continued

.00055 .00060.00065 |
.00065 .00970.00075.00080.00085.00090.00095 .00100
|
0.2
0.26
0.28
0.29 0.30
0.31
0.32 0.33 0.34
0.35
0.36
0.4
.42
· 44
.46
.47
.49
.51
.52
.54
.55
.57
0.6
.55
.58
.60
.62
.64
.66
.68
.70
.72
.74
0.8
.67
.70
.73
.75
.78
.80
.83
.85
.88
.90
1.0
1.2
1.4
1.6
1.8
0246 ∞
.77
.81
.84
.87
.90
.93
.96
.99
1.02
1.04
.87
.91
.95
.99
1.02
1.05
1.09
1. 12
1. 15
1.18
.97
1.01
1.05
1.09
1. 13
1.17
1.20
1.24
1.27
1.31
1.06
1.11
1. 15
1.20
1.24
1. 28
1.32
1.36
1.39
1.43
1.15
1.20
1.25
1.29
1.34
1.38
1.42
1.47
1.51
1.55
2.0
1.23
1.28
1.34
1.39
1.44
1.48
1.53
1.57
1.62
1.66
2.2 1.31
1.37 1.42
1.48
1.53
1.58
1.63
1.68
1.72
1. 77
2.4 1.39
1.45 1.51
1.57
1.62
1.67
1.73 1.78
1.82
1.87
2.6 1.46
1.53
1,59
1.65
1.71
1.77
1.82
1.87
1.92
1.97
2.8 1.54 1.61
1.67
1.74
1.80
1.86
1.91
1.97
2.02
2.07
eð eð er að eð
00 CS 1 20
1.61
1.68
1.75 1.82
1.88
1.94
2.00
2.06
2.12
2.17
1.68 1.76
1.83 1.90
1.96 2.03
2.09
2.15
2. 21
2. 27
1.75 1.83
1.90
1.98
2.04 2.11
2.18
2. 24
2.30
2.36
1.82
1.90
1.98
2. 05
2.12
2.19
2.26
2. 33
2.39
2.45
1.89
1.97
2.05
2. 13
2.20
2.27
2.34
2.41
2.48
2.54
=
4.0
1.95
2.04
2. 12
2.20
2.28
2.35
2.43
2,50
2.56 2.63
4.2 2.02
2. 11
2, 19
2. 27
2.35
2.43
2. 51
2.58
2.65
2.72
4.4
2.08
2.17
2. 26
2.35
2.43
2.51
2.59
2.66 2.73
2.80
4.6
2. 14
2. 24
2.33
2.42
2.50
2.58
2.66
2.74
2.82
2.89
4.8
2.20
2.30
2.40
2,49 2.57
2.66
2.74
2.82
2.90
2.97
5,0
2. 26
2.37
2. 46
2.55
2.64
2.73
2.82
2.90
2.98
3.05
5.2
2.32
2. 43
2.53
2.62 2.71
2.80
2.89
2.97
3.05
3. 13
5.4
2.38
2.49
2.59 2.69 2.78
2.87
2.96
3.05
3. 13
3. 21
5,6 2.44
2.55
2.65 2.76 2.85
2.95
3.04
3.12
3. 21
3.29
5.8
2.50
2.61
2.72 2.82
2.92
3.02
3.11
3. 20
3.29
3.37
6.0
2.56
2.67
2.78 2.88
2.99
3.08
3.18
3. 27
3.36
3.45
6.2 2.61
2.73
2.84 2.95
3.05
3. 15
3.25
3.34
3. 44
3.52
6.4
2.67
2.79
2.90 3.01
3. 12
3. 22
3.32
3. 41
3.51
3.60
6.6
2.72
2.85 2.96
3.07
3.18
3.29
3.39
3.49
3.58
3.67
6.8
2. 78
2.90
3.02
3. 14
3.25
3.35
3.46
3.56
3.65
3.75
7.0
2.83
2.96
3.08
3.20
3.31
3.42
3.52
3.63
3.72
3.82
7.5
2.97
3. 10
3. 23
3.35
3.47 3.58
3.69
3.80
3.90
4.00
8.0
3. 10
3. 24
3.37
3.49
3.62
3.74 3.85
3.96
4. 07
4. 18
8.5
3. 23
3.37
3. 51
3.64
3.77
3.89
4.01
4. 13
4. 24
4. 35
9.0
3.35
3.50
3.64
3.78
3.91
4.04
4. 17
4. 29
4.40
4. 52
9.5
3.47
3.63 3.78
3.92 4.06
4. 19
4.32
4.44
4. 57
4.68
563189°-44. -30
458
HYDRAULIC TABLES
Table 36.—Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
2/31/2
n=.045
Continued

Co
$
.0010
.0015
.0020 .0025 .0030 .0035 .0040
.0045
.0050
T
0.2
0.36
0.44
0.51
0.56
0.62
0.67
0.71
0.76
0.80
0.4
.57
.69
.80
.90
.98
1.06
1. 13
1.20
1.27
0.6
.74
.91
1.05
1. 17
1.29
1.39
1.49
1.58
1.66
0.8
.90
1.10
1.27
1.42
1.56
1.68
1.80
1.91
2.01
1.0
1.04
1.28
1.48
1.65
1.81
1.95
2.09
2.22
2.34
1.2
1. 18
1.44
1.67
1.86
2.04
2. 21
2.36
2.50
2.64
1.4
1.31
1.60
1.85
2.07
2.26
2.44
2.61
2.77
2.92
1.6
1.43
1.75
2.02
2.26
2.47
2.67
2.86
3.03
3. 19
1.8
1.55
1.89
2.19
2.44
2.68
2.89
3.09
3.28
3.46
2.0
1.66
2.03
2. 34
2.62
2.87
3. 10
3.32
3.52
3.71
2.2
1.77 2.16
2.50
2.79
3.06
3.30
3.53
3.75
3.95
2.4
1.87
2.29
2.65
2.96
3. 24
3.50
3.74
3.97
4.19
2. 6
1.97
2.42
2.79
3. 12
3.42
3.69
3.95
4. 19
4. 42
2.8
2.07
2.54
2.93
3.28
3.59
3.88
4. 15
4.40
4.64
3.0
2. 17
2.66
3.07
3. 43
3.76
4.06
4. 34
4. 61
4.86
3. 2
2.27
2.78
3.21
3.59
3.93
4. 24
4.54
4.81
5.07
3.4
2.36
2.89
3.34
3.73
4.09
4.42
4.72
5. 01
5.28
3.6
2.45
3.00
3. 47
3.88
4. 25
4.59
4.91
5. 20
5.48
3.8
2.54
3. 11
3.60
4. 02
4.40
4.76
5.09
5.39
5.69
4.0
2. 63
3.22
3.72
4. 16
4.56
4.92
5.26
5.58
5.88
4.2
2.72
3.33
3.84
4.30
4.71
5.09
5. 44
5.77
6.08
4.4
2.80
3.43
3.97
4.43
4.86
5.25
5. 61
5.95
6.27
4. 6
2.89
3.54
4.08
4.57
5.00
5.40
5.78
6. 13
6.46
4.8
2.97
3. 64
4.20
4.70
5. 15
5.56
5.94
6.30
6. 64
5.0
3.05
3.74
4.32
4.83
5.29
5.71
6. 11
6. 48
6.83
5.2
3. 13
3.84
4.43
4.96
5.43
5.86
6.27
6.65
7.01
5.4
3. 21
3.94
4.55
5.08
5.57
6.01
6.43
6.82
7.19
5.6
3.29
4.03
4.66
5. 21
5.70
6.16
6.59
6.99
7.36
5.8
3.37
4. 13
4.77
5.33
5.84
6.31 6.74
7.15
7.54
6.0 3.45
4.22
4.88
5.45
5.97
6.45
6.90
7.31
7.71
6.2 3.52
4.32
4.98
5.57
6.10
6.59
7.05 7.48
7.88
6.4 3.60
4. 41
5.09
5. 69
6. 23
6.73
7.20
7.64
8.05
6.6
3.67
4.50
5.20
5.81
6.36
6.87 7.35 7.79
8.22
6.8
3.75
4.59
5.30
5.93
6.49
7.01
7.50
7.95
8.38
7.0
3.82
4. 68
5.40
6.04
6.62
7.15 7.64
8.11
8.54
7.5
4.00
4.90
5.66 6.33
6.93
7.49
8.00
8.49
8.95
8.0
4. 18
5.12
5.91
6.60
7.23
7.81
8.35
8.86
9.34
8.5
4.35
5.33
6. 15
6.88
7.53
8. 14
8.70 9.23
9.73
9.0
4.52
5.53
6.39
7.14
7.83
8.45
9.04 9.58
10. 10
9.5
10.47
4.68
9.37 9.94
5.74
8.76
6.62
8.11
7.41
HYDRAULIC TABLES
459
Table 36.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= ·72/31/2
n
n=.045—Continued



8
.0055
.0060
.0065
.0070
.0075 .0080
.0085 .0090
.0095
.0100
T
0.2
0.84
0.87
0.91
0.94
0.98
1.01
1.04
1.07
1. 10
1. 13
0.4
1.33
1.39
1.45
1.50
1. 55
1.60
1.65
1.70
1.75
1.79
0.6
1.74
1.82
1.89
1.97
2.03
2. 10
2. 17
2.23
2. 29
2.35
0.8
2. 11
2.20
2. 29
2.38
2.46
2.55
2.62
2.70
2.77
2.85
1.2
1.4
1.6
1,8
024- ∞
1.0 2.45
2.56
2.66
2.76
2.86
2.95
3.04
3. 13
3. 22
3.30
2.77
2.89
3.01
3. 12
3. 23
3.34
3.44
3.54
3. 63
3.73
3.06
3.20
3.33
3.46
3.58
3.70
3.81
3.92
4. 03
4. 13
3. 35
3.50
3.64
3.78
3.91
4.04
4. 16
4. 29
4.40
4.52
3.62
3.78
3.94
4.09
4. 23
4.37
4. 51
4.64
4.76
4.89
2.0
3.89
4.06
4. 23
4.39
4.54
4.69
4.83
4.97
5. 11
5. 24
2.2
4. 14
4. 33
4.50
4.67
4.84
5.00
5. 15
5.30
5. 44
5.59
2.4
4.39
4.59
4.77
4.95
5. 13
5.29
5.46
5.62
5.77
5.92
2.6
4.63
4.84
5.03
5.22
5. 41
5. 58
5.76
5.92
6.09
6. 24
2.8
4.87
5.08
5. 29
5.49
5. 68
5.87
6.05 6.22 6.39
6. 56
3.0
5.09
5.32
5. 54
5.75
5.95
6. 14
6.33
6.52
6.69
6.87
3.2
5. 32
5. 55
5.78
6.00
6. 21
6.41
6.61
6.80
6.99
7. 17
3.4
5. 54
5.78
6.02
6.25
6.47
6.68
6.88 7.08
7.28
7.47
3.6
5.75
6.01
6. 25
6.49
6.72
6.94
7.15 7.36
7.56
7.76
3.8
5.96
6. 23
6.48
6.73
6.96
7.19
7.41
7.63
7.84
8.04
4.0
6. 17
6.45
6.71
6.96
7.21
7.44
7.67
7.89
8.11
8.32
4.2
6.38
6.66
6.93 7.19
7.44
7.69
7.93
8.16
8.38
8.60
4. 4
6. 58
6.87
7.15 7.42
7.68
7.93
8. 17
8.41
8. 64
8.87
4. 6
6.77
7.07
7.36 7.64
7.91
8. 17
8. 42
8.66
8.90
9. 13
4.8
6.97
7.28 7.58
7.86
8. 14
8.40
8.66
8.91
9. 16
9.40
5.0
7.16
7.48 7.78
8.08
8.36
8.64
8.90
9.16
9.41
9.66
5.2
7.35
7.68 7.99
8.29 8.58
8.87
9. 14
9.40
9.66
9.91
5.4
7.54
7.87 8.19
8.50
8.80
9.09
9.37
9.64
9.91
10. 16
5.6 7.72
8.07
8.40 8.71
9.02
9.31
9.60
9.88
10.15
10. 41
5.8 7.91
8. 26
8.59
8.92
9.23
9.53
9.83
10. 11
10.39
10.66
6.0
8.09
8.45
8.79
9. 12
9.44
9.75
10.05
10.34
10.63
10.90
6.2
8.27
8.63
8.99
9.32
9.65
9.97
10. 27
10.57
10.86
11. 14
6.4 8.44
8.82
9. 18
9.52
9.86
10. 18
10.49
10.80
11.09
11.38
6.6 8.62
9.00
9.37
9.72
10.06
10.39
10.71
11.02
11.32
11.62
6.8 8.79 9.18
9.56
9.92
10.26
10.60
10.93
11. 24
11.55
11.85
7.0
8.96
9.36
9.74
10. 11
10.46
10.81
11. 14
11.46
11.78
12.08
7.5 9.38
9.80
10. 20
10.59 10.96
11. 32
11.67
12.00
12. 33
12.65
8.0
9.80
10.23
10.65
11.05 11.44
11.81
12. 18
12.53
12.87
13. 21
8.5
10. 20
10.65 11.09 11.51 11.91
12.30
12.68
13.05
13.41
13.75
9.0
10.60
11.07 11.52 11.95
12.37
12.78
13. 17
13.55
13.93
14.29
9.5
14.81
10.99
13.66 14.05 14.44
11.47 11. 94 12.39
13.25
12.83
460
HYDRAULIC TABLES
Table 36.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
2/31/2
N
n=.045—Continued

8
.01
.02
.03
.04
.05
.06
.07
08.09
.10
Т
0.2
1. 13
1.60
1.96
2. 26
2.53
2.77
2.99
3.19
3.39
3.57
0.4
1.79
2. 54
3. 11
3. 59
4.01
4. 39
4.74
5. 07
5.38
5. 67
0.6
2.35
•
3.32
4.07
4.70
5. 25
5.75
6. 22
6.64
7.05
7.43
0.8
2.85
4.02
4.93
5.69
6.36
6.97
7.53
8.05
8.54
9.00
1.0
3.30
4. 67
5.72
6.60
7.38
8.09
8.74
9.34
9.91
10.44
1.2
3.73
5. 27
6. 46
7.46
8.34
9. 13
9.87
10.55
11. 19
11. 79
1.4
4. 13
5.84
7.16
8.27
9. 24
10. 12
10.93
11.69
12.40
13.07
1.6
4.52
6. 39
7.82
9.03
10. 10
11.07
11.95
12.78
13.55
14. 29
1.8
4.89
6.91
8.46
9.77
10.93
11.97
12.93
13.82
14.66
15. 45
2.0
5. 24
7.41
9.08
10.48
11.72
12.84
13.87 14.83
15.73
16.58
2.2
5.59
7.90 9.67
11. 17
12.49
13. 68
14.78
15.80
16.76
17.66
2.4
5.92
8.37 10.25
11.84
13. 24
14.50
15.66
16. 74
17.76
18.72
2.6
6. 24
8.83 10.81
12. 49
13.96
15. 29
16. 52
17.66
18.73
19. 74
2.8
6. 56
9.28
11.36
13. 12
14. 67
16. 07
17.36
18. 55
19.68
20.74
3.0
6.87
9.71
11.90
13. 74
15.36
16.83
18. 17
19.43
20.61
21.72
3.2 7.17
10.14 12.42
14.34
16.03 17.57
18.97
20. 28
21.51
22.68
3.4 7.47
10.56
12.93
14.93
16.70 18:29
19.75
21. 12
22.40
23.61
3.6
7.76
10.97
13. 43
15.51
17.34 19.00
20.52
21.94
23.27
24. 53
3.8 8.04
11. 37
13.93
16.08 17.98 19.70
21.28
22.74
24. 12
25.43
4.0
8.32
11.77
14. 41
16.64
18.61 20.38
22.02
23.54
24.96
26. 31
4.2 8.60
12. 16
14.89
17.19
19.22 21.06
22. 74
24. 31
25.79
27.18
4.4
8.87
12.54
15. 36
17.73
19:83 21.72
23.46
25.08
26. 60
28.04
4.6
9. 13
12.92
15.82
18. 27
20.42
22.37
24. 17
25.83
27.40
28.88
4.8
9.40
13.29
16. 28
18.79
21.01
23.02
24.86
26.58
28. 19
29.71
5.0
9.66
13.66 16.72
19.31
21.59
23.65
25.55
27.31
28.97
30.53
5.2
9.91
14.02 17.17
19.82
22. 16
24. 28
26. 22
28.03
29.73
31.34
5.4
10. 16
14. 37
17.60 20.33
22.73
24.90
26.89
28.75
30.49
32. 14
5.6
10.41
5.8
10.66
14.73 18.04
15.08 18.46 21.32
20.83
23.29
25.51
27.55
29.45
31. 24
32.93
23.84 26.11
28. 20❘
30. 15
31.98
33.71
6.0
10.90
15. 42 18.89
21.81
24. 38 26. 71
28.85
30.84
32.71
34.48
6.2
11. 14
15. 76 19.30
22.29
24.92 | 27.30 | 29.49
31. 52
33. 43
35. 24
6.4
11.38
16. 10
19.72
22.77
25.45 27.88 30.12 | 32. 20
34. 15
36.00
6. 6
11.62
16. 43
20.12
23. 24
25.98 28.46 30.74 | 32.86 | 34.86
36.74
6.8
11.85
16. 76
20.53
23. 71
26.50 29.03 | 31.36 33.52
35.56
37.48
7.0
12.08
17.09 20.93
24. 17
27.02 | 29.60 | 31.97 | 34. 18
36. 25
38. 21
7.5
12.65
17.89
21.91 25.31
28. 29 30.99 33.48 35.79
37.96
40.01
8.0
13. 21
18.68
22.88 26.42
8.5
13.75
19. 45
23.82 27.51
9.0
14. 29
20.21
24.75 28.58
29.54 32.36
30.75 33.69
31.95 35.00
34.9537.36
39.63
41.77
36.39 38.90
41. 26
43.49
37.80
40.41
42.86
45. 18
9.5
46.84
14. 81
41.90 44. 44
20.95 25.66 29.62 33. 12 36. 28
39. 19
HYDRAULIC TABLES
461
Table 36.-Velocity of water, v, in feet per second, based on
·
.00005
1.486
n
Manning's formula v= -r2/31/2
0010
n=.045—Continued

.00010 .00015 .00020.00025.00030.00035 .00040.00045 .00050
28
32
33
35
36
39
41
42
43
CIRRI 49508 22282 BRRAS AMN** ---88 20**:
10
1.08
1.53
1.88 2.17 2.42 2.65
2.87
3.07
3. 25
3.43
11
1.15
1.63
2.00
2.31 2.58
2.83
3.06
3.27
3.46
3.65
12
1. 22
1.73
2. 12
2.45
2.74
3.00
3. 24
3.46
3.67
3.87
13
1.29
1.83
2. 24
2.58
2.89
3. 16
3.42
3. 65
3.87
4.08
14
1.36
1.92
2.35
2.71
3.03
3.32
3.59
3.84
4.07
4. 29
15
1. 42
2.01
2.46
2.84
3. 18
3.48
3.76
4.02
4. 26
4.49
16
1.48
2.10
2.57
2.97
3.32
3.63
3.92
4.19
4. 45
4.69
17
1.54
2. 18
2.67
3.09
3.45
3.78
4.08
4.37
4. 63
4.88
18
1.60
2. 27
2.78
3. 21
3.59
3.93
4. 24
4. 54
4.81
5.07
19
1.66
2.35
2.88
3.33
3. 72
4.07
4.40
4.70
4.99
5.26
20
1.72
2.43
2.98
3.44
3.85
4. 21
4.55
4.87
5. 16
5. 44
21
1.78
2. 51
3.08
3.55
3.97
4.35
4.70
5.03
5.33
5.62
1.83
2.59
3. 18
3.67
4. 10
4.49
4.85
5. 19
5.50
5.80
23
1.89
2.67
3.27
3.78
4.22
4.63
5.00
5.34
5.67
5.97
24
1.94
2.75
3.37
3.89
4.34
4.76
5. 14
5.50
5.83
6. 14
25
2.00
2.82
3.46
3.99
4. 46
4.89
5. 28
5. 65
5.99
6.31
26
2.05
2.90
3. 55
4. 10
4.58
5.02
5. 42
5.80
6. 15
6.48
27
2.10
2.97
3. 64
4. 20
4.70
5. 15
5.56
5.94
6.30
6.65
2. 15
3.04
3.73
4. 31
4.81
5. 27
5.70
6.09
6.46
6.81
29
2.20
3.12
3.82
4. 41
4. 93
5.40
5.83
6. 23
6.61
6.97
30
2.25
3. 19
3.90
4. 51
5. 04
5.52
5.96
6.38
6.76
7.13
31 2.30
3.26
3.99
4. 61
5. 15
5.64
6.10
6.52
6.91
7.29
2.35
3. 33
4.08
4.71
5.26
5.77
6. 23
6.66 7.06
7.44
2.40
3.40
4. 16
4.80
5. 37
5.88
6.36
6.79
7.21
7.60
34
2.45
3.47
4. 24
4.90
5. 48
6.00
6.48
6.93 7.35
7.75
2.50
3.53
4. 33
5.00
5.59
6. 12
6.61
7.07
7.50
7.90
2.55
3.60
4. 41
5.09
5.69
6. 24
6.74
7.20
7.64
8.05
37 2.59 3.67
4.49
5. 19
5.80
6.35
6.86
7.33
7.78
8.20
38 2.64 3.73
4.57
5. 28
5.90
6.46
6.98
7.46
7.92
8.35
2.69 3.80
4. 65
5.37
6.00
6. 58
7.10
7.60 8.06
8.49
40 2.73
3.86
4.73
5.46
6. 11
6.69
7.23
7.72 8.19
8.64
2.78
3.93
4.81 5.55
6. 21
6.80
7.35 7.85
8.33
8.78
2.82
3.99
4.89 5.64
6.31
6.91
7.46
7.98
8.46
8.92
2.87
4.05
4.96
5.73
6. 41
7.02
7.58
8. 11
8.60
9.06
44
2.91
4. 12
5.04
5.82
6. 51
7.13
7.70
8.23
8.73
9.20
45 2.95
4. 18
5. 12
5.91
6.61
7.24 7.82
8.36
8.86
9. 34
46
3.00
4. 24
5. 19
6.00
6.70
7.34
7.93 8.48
8.99
9.48
47
3.04
4.30
5. 27
6.08
6.80 7.45
8.05 8.60 9.12
9.62
48
3.08
4.36
5.34
6. 17
6.90 7.55
8.16
8.72 9.25
9.75
49
3. 13
4.42
5.42
6. 25
6.99
7.66
8.27
8.84 9.38
9.89
50
9.51 10.02
3.17
8.96
4. 48
8.38
5.49
7.09 7.76
6.34
462
HYDRAULIC TABLES
Table 36.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.045-Continued

.00055
.00060
T
.00065.00070.00075.00080.00085.00090.00095
4.06 4.20 4.34
.00100
21
26
27
PIRRI B==== 222** **NA2 --***
3.59
3.75
3.91
4. 47
4.60
4.72
4.85
11
3.83
4.00
4. 16
4.32
4.47
4.62
4.76
4.90
5. 03
5.16
12
4.06
4. 24
4.41
4.58
4.74
4.90
5.05
5.19
5.33
5.47
13
4. 28
4. 47
4. 65
4.83
5.00
5. 16
5.32
5.48
5.63
5.77
14
4.50
4.70
4.89
5.08
5. 25
5. 43
5. 59
5.75
5.91
6.07
15
4.71
4.92
5.12
5.31
5.50
5. 68
5.86
6.03
6. 19
6.35
16
4.92
5.14
5.35
5.55
5.74
5.93
6. 11
6. 29
6.46
6.63
5. 12
5.35
5. 57
5.78
5.98
6. 18
6.37
6. 55
6.73
6.90
18
5.32
5. 56
5.78
6.00
6. 21
6.42
6.61
6.80
6.99
7.17
19
5.51
5.76
5.99
6. 22
6. 44
6. 65
6.86
7.05 7.25
7.44
20 5.71
5.96
6. 20
6. 44
6.66
6.88
7.09
7.30
7.50
7.69
5.89
6.16
6. 41
6.65
6.88
7.11
7.33 7.54
7.75
7.95
6.08
6.35
6. 61
6.86
7.10
7.33
7.56
7.78
7.99
8.20
23
6. 26
6. 54
6.81
7.07 7.31
7.55
7.79
8.01
8.23
8.45
24
6. 44
6.73
7.00
7.27
7.52
7.77
8.01
8. 24
8.47
8.09
25
6. 62
6.92 7.20
7.47
7.73
7.99
8.23
8.47
8.70
8.93
6.80
7.10
7.39
7.67
7.94
8.20
8.45 8.69
8.93
9.16
6.97
7.28
7.58
7.86
8. 14
8.41
8.66 8.92
9.16
9.40
28 7.14
7.46
7.76 8.06
8.34
8.61
8.88
9.13
9.39
9.63
29 7.31
7.64
7.95
8.25
8.54
8.82 9.09
9.35 9.61
9.86
80
7.48 7.81 8.13
8.44
8.73
9.02
9.30
9.56 9.83
10.08
31
7.64 7.98 8.31
8.62
8.92
9.22
9.50
9.78 10.04
10.30
32
7.81 8.15 8.49 8.81
9.12
9.41
9.70
9.99❘ 10.26
10. 53
83 7.97 8.32 8.66
8.99
9.30
9.61
9.91
10.19 10.47
10.74
34 8.13 8.49
8.84
9.17
9.49
9.80
10.10
10.40 10. 68
10.96
35 8.29
36 8.44
87 8.60
8.65 9.01
9.35
9.68
9.99
10.30
10.60 | 10.89
11. 17
8.82
8.98 9.35 9.70
9.18 9.53
9.86
10. 18
10. 50
10.80 11.10
11.39
10.04
10.37
10.69
11.00
11.30
11.60
88 8.75
9. 14
9.52 9.88
10. 22
10. 56
10.88
11.20 11.50
11.80
39
8.91
9.30
9.68 10.05
10.40
10.74
11.07
11.39 11.71
12.01
40
9.06
41
9.21
9.46 9.85 10.22 10.58
9.62 10.01 10.39 10.75
10.92
11.26 11.59
11.90
12. 21
11.11
11.45 11.78 12.10
12.42
42 9.36
9.77 10.17
10.56 10.93
11.29
11.63
11.97
12.30
12.62
43 9.51
44
9.65
9.93 10.33 10.72 11.10
10.08 10.49
11.46
11.82
12.16
12.49
12.82
10.89
11.27
11. 64
12.00
12. 35
12. 69
13. 01
45
47 10.09
9.80 10.23 10.65
46 9.94 10.38 10.81
10.53
11.05
11.44
11.82
12. 18
12. 53
12.88
13. 21
11. 22
11.61
11.99
12.36
12.72
13.07
13. 41
10.96
11.38
11.78
12.16
12.54
12.90
13.26
13.60
48
10.23 10.68
11. 12
11.54
11.94
12. 34
12. 72
13.08 13.44
13.79
49
10.37 10.83
11. 27 11.70
12.11
12. 51
12.89
13.27
13.63
13.98
50
14. 17
10.51
13.81
10.98
13.45
11.43 11.86
13.07
12.27
12.08
HYDRAULIC TABLES
463
Table 36.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.045—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040 .0045
.0050
T
PERRE 40202 2788*
10
4.85
5.94
6.85
7.66
8.40
9.07
9.69
10.28
10.84
11
5. 16
6.33
7.30
8.17
8.95
9.66
10.33 10.96
11.55
12
5. 47
6.70
7.74
8.65
9.48
10.24
10.95
11.61
12.24
13
5.77
7.07
8. 16
9. 13
10.00
10.80
11. 55
12. 25
12.91
14
6.07
7.43
8.58
9.59
10. 51
11.35
12. 13
12.87
13.56
15
6.35
7.78
8.98
10.04
11.00
11.88
12.70
13.47
14. 20
16 6.63
8.12
9.38
10.48
11.48
12.40
13. 26
14.07
14.83
17
6.90 8.46
9.76
10.92
11.96
12.92
13.81
14. 65
15.44
18
7.17
8.78
10. 14
11.34
12. 42
13.42
14.34
15. 21
16.04
19
7.44
9.11
10.52
11.76
12. 88
13. 91
14.87
15. 77
16.63
20
7.69
9.42
10.88
12. 17
13. 33
14.39
15.39
16. 32
17.20
21
7.95
9.73
11. 24
12.57
13.77
14.87
15.90
16.86
17.77
22 8.20
10.04
11.59
12.96
14. 20
15. 34
16.40
17.39
18.33
23
8.45
10.34
11.94
13.35
14.63
15.80
16.89
17.92
18.88
24
8.69
10. 64
12.29
13.74
15.05
16. 25
17.38
18. 43
19.43
25
8.93
10.93
12.63
14. 12
15.46
16.70
17.86
18.94
19.96
26
9.16
11. 22
12.96
14. 49
15.87
17. 15
18. 33
19.44
20.49
27
9.40
11.51
13.29
14.86
16. 28
17.58
18.80
19.94
21.02
28
9.63
11. 79
13. 62
15. 22
16.68
18.01
19. 26
20.43
21.53
29
9.86
12.07
13.94
15. 59
17.07
18. 44
19.71
20.91
22.04
30 10.08
12.35
14.26
15.94
17.46
18.86
20. 16
21.39
22.54
31
10.30
12. 62
14.57
16. 29
17.85
19. 28
20.61
21.86
23.04
32
10.53
12.89
14.89
16. 64
18.23
19.69
21.05
22.33
23. 54
33 10.74
13. 16
15. 19
16.99
18.61
20.10
21.49
22.79
24.02
34
10.96
13.42
15.50
17.33
18.98
20.50
21.92
23. 25
24. 51
35
11. 17
13.68
15.80
17.67
19.35
20.90
22.35
23.70
24.98
36
11.39
13.94
16. 10
18.00
19. 72
21.30
22.77
24. 15
25.46
37
11.60
14. 20
16. 40
18.33
20.08
21.69
23. 19
24.60
25.93
38
11.80
14. 46
16.69
18.66 20.44
22.08
23. 61
25.04
26.39
39
12. 01
14. 71
16.98
18.99
20.80
22.47
24.02
25.48
26.85
40
12. 21
14.96
17.27
19. 31
21. 15
22.85
24.43
25.91
27.31
41
12.42
15. 21
17.56
19. 63
21. 51
23. 23
24.83
26. 34
27.76
42
12. 62
15.45
17.84
19.95
21.85
23. 61
25. 23
26.77
28. 21
43
12.82
15.70
18. 13
20.27
22.20
23.98
25. 63
27. 19
28.66
44
13.01
15. 94
18.41
20.58
22.54
24. 35
26.03
27.61
29.10
45
13. 21
16. 18
18.68
20.89
22.88
24.72
26. 42
28.03
29.54
46
13. 41
16. 42
18.96
21.20
23. 22
25.08
26.81
28.44
29.98
47
13.60
16.66
19.23
21. 50
23.56
25. 44
27. 20
28.85
30.41
48
13.79
16.89
19. 51
21.81
23.89
25.80
27.58
29.26
30.84
49
13.98
17. 13
19. 78
22.11
24. 22
26. 16
27.97
29.66
31.27
50
31.69
14. 17
30.06
17.36
28.35
20.04
26. 51
22. 41
24.55
464
HYDRAULIC TABLES
Table 36.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
-.045-Continued

T
8
.0055
.0060 .0065 .0070
.0075
.0080 .0085 .0090
.0095
.0100
35
38
45
CIRII 40*** 222** *22*2 8-83- 48008 **** ***** 8
19
11.37
11.87
12.36
12, 82
13.27
13.71
14. 13
14.54
14.94
15. 33
11
12. 11
12.65
13. 17
13.67
14. 14
14.61
15.06
15.49
15.92
16.33
12
12.84
13. 41
13.95
14.48
14.99
15.48
15.96
16. 42
16.87
17.31
13 13. 54
14. 14
14.72
15. 28
15.81
16.33
16.83
17.32
17.79
18.26
14
14.23
14.86
15.46
16.05
16.61
17.16
17.68
18.20
18.70
19. 18
15
14.90
15.56
16. 19
16.80
17.39 17.96
18.52 19.05
19.58
20.08
16
15.55
16. 24
16.90
17.54
18.16 18.75
19.33 19.89
20.44
20.97
17
16. 19
16.91
17.60
18. 27
18.91 19.53
20.13 20.71
21.28
21.83
18
16.82
17.57
18. 29
18.98
19.64
20.29
20.91 21.52
22.11
22.68
19 17.44
18.21
18.96
19. 67
20.36 21.03
21.68 | 22.31
22.92
23. 51
20
18.04
18.85
19.62
20.36
21.07 | 21.76
22. 43
23.08
23.71
24. 33
21
18.64 19.47
20. 26
21.03
21.77 22.48
23. 17
23.85
24.50
25. 14
19.23 20.08
20.90
21.69
22.45 23. 19
23.90
24.60
25.27
25.93
23
19.81 20.69
21.53
22. 34
23.13
23.89
24.62
25. 34
26.03
26.71
24
20.38 21.28 22.15
22.99
23.79
24.57
25.33 | 26.07
26.78
27.48
25
20.94
21.87 22.76
23.62
24.45 25. 25
26.03❘ 26.78
27.52
28.23
26
21. 49
22.45 23.37
24.25
25.10 25.92
26.72 | 27. 49
28.25
28.98
27
22.04
23.02
23.96
24.87
25.74 | 26.58
27.40 28.19
28.97
29.72
28 22.58
23.59
24.55
25. 48
26.37 | 27. 23
28.07 | 28.89
29.68
30.45
29
23.12
24. 14
25. 13
26.08
26.99 27.88
28.74 | 29.57
30.38
31. 17
30
23.64
24.70
25.70
26.67
27.61
31
24. 17
25. 24
26. 27
27.26 28.22
32
24.68
25.78
26.83 27.85
28.83
28.52
29.15 30.04
29.77 | 30.69
29. 39
30.25
31.08
31.88
30.91
31.76
32.59
31.58
32. 44
33.28
33 25.20 26.32
27.39 28.42
29.42
30.39 | 31.32
32. 23
33.11
33.97
34 25.70 26.85 27.94 29.00
30.01
31.00 31.95
32.88
33.78
34.66
26.20 27.37 28.49 29.56
30.60
31.60 32. 58
33.52
34. 44
35.33
36
26.70 27.89
29.03 | 30.12
31.18
32.20
33. 19
34.16
35.09
36.00
37
27.19 28.40 29.56 30.68
31.75
32.80
33.81
34.79
35.74
36.67
27.68 28.91
30.09 31.23
32, 32
33.38
34.41
35. 41
36.38
37.32
39
28. 16
29.42
30.62
31.77
32.89
33.97
35.01
36.03
37.02
37.98
40
28.64 29.92 31.14
32. 31
33.45
34.55 35.61
36.64
37.65
38.62
41
29.12 30.41
31.66
32.85
34.00
35.12 | 36. 20
37.25
38. 27
39.26
42 29.59 30.91
32. 17
32.17
33. 38
33.38
34.55
35.69
36.79
37.85
38.89
39.90
43 30.06 31.40
32.68
33.91
35. 10
36.25
37.37
37.37
38.45 39.50
40.53
44 30.52 31.88 33.18
34. 43
35.64
36.81
37.94
39.04 | 40.11
41. 16
30.98
32.36
33.68
34.95
36.18
37.37
38.52 39.63
40.72
41.78
46 31.44 32.84
34. 18
35.47
36.71
37.92
39.09 | 40.22
41.32
42.39
47
48
32.35
31.89 33.31
33.78
49
32.79
34. 25
35.65 37.00
34.67 35.98 37.25 38.47
35. 16 36.49 37.77 39.01 40.21 41.38
38.29 39.55 40.77
39.65 40.80
41.92
43.01
42.51
43.61
41.95
43. 10
44.22
50
33. 24
34.72 36. 13
37.50 38.81 40.09 41.32
42.52 43.68
44.82
HYDRAULIC TABLES
465
Table 36.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.045—Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
10
15.33
21.68
26. 55
30.66
34. 27
37.54
40. 55
43.35
45.98 48.47
11
16.33
23. 10
28. 29
32. 67
36.52
40.01
43. 21
46.20
49.00
51.65
12
17.31
24.48
29.98
34.62
38.70
42.40
45.79
48.96 51.93 54.73
13
18.26
25.82
31. 62
36. 51
40.82
44.72
48.30
51.64
54.77 57.73
14
19. 18
27. 13
33.22
38.36
42.89
46.99
50.75
54. 25
57.55
60.66
15
20.08
28.40
34.79
40. 17
44.91
49.20
53. 14
56.81
60. 25
63. 51
16
20.97
29.65
36.32 41.94
46.89 51.36
55. 48
59.31
62.90
66.31
17
21.83
30.88
37.82 | 43.67
48.82
53.48
57.76
61.75
65. 50
69.04
18
22.68
32.08
39.28 | 45.36
50.72
55. 56
60.01
64. 15
68.04
71.72
19
23. 51
33.25
40.73
47.03
52.58
57.59
62. 21
66.50
70.54
74.35
20
24.33
34. 41
42. 14
48. 66
54.41
59.60
64.37
68.82
72.99
76.94
21
25. 14
35.55
43.54
50.27
56.20
61.57 66.50
71.09
75.41
79.49
22
25.93
36.67
44.91
51.85
57.97
63.51
68.60
73.33
77.78
81.99
23
26.71 37.77 46.26
53.41
59.72
65. 42
70.66 75.54
80.12
84.45
24 27.48
38.86 47.59
54.95
61.44
67.30
72.69
77.71 82. 43
86.89
27
28
29
KARAZ A*** **DAA GE===
25
28.23 39.93 48.90
56.47
63. 13
69. 16
74.70
79.86❘ 84.70
89.28
26 28.98 40.99 50.20 57.96
64.80
70.99
76.68
81.97
86.94
91. 65
29.72
42.03 51.48 59.44
66.46
72.80 78.63
84.06
89. 16
93.98
30.45
43.06 52.74
60.90
68.09
74.59
80.56
86. 12 |
91. 35
96.29
31. 17
44.08
53.99
62.34
69.70
76.35
82. 47
88. 16
93.51
98.57
30 31.88
31 32.59 46.09
45.09
55. 22
63.77
71. 29
78.10
84.35
90.18
95. 65
100. 82
56.44
65. 17
72.87
79.82
86. 22
92.17 | 97.76
103. 05
32
33.28 47.07 57.65
66. 57
74.43
81.53
88.06
94. 14 99.85
105. 25
33
33.97
34
48.05
34.66 49.01 60.03
58.84
67.95
75.97
83.22
89.89
96.09 101.92
107.44
69.31 77.50
84.89
91.69
98.03 103.97
109.60
35
35.33 49.97 61.20
70.67
79.01
86.55
93.48 99.94 106.00
111. 73
36
36.00 50.92 62.36 72.01
80.51
88. 19
37 36.67 51.85 63.51 73.33 81.99
89.82
38
37.32 52.78 64.65 74.65 83.46
39 37.98 53.71 65.78 75.95 84.92
91.43
93.02
95. 26 101.83 108. 01
97.01 103.71 110.00
98.75 105.57 111.97
100.48 107. 41
113. 85
115.95
118.03
113.93 | 120. 09
40 38.62
54. 62 66.90
77.25 86.36
94.61 102. 19
109. 24
115. 87
122. 14
41
39.26
55. 53
68.01
78.53 87.80
96.18 103.88
111.06
117.79
124. 16
42
39.90
56. 43
69.11
43
40.53
57.32
79.80 89.22
70.20 81.06 90.63
97.73
105. 57
112. 85
119. 70
126. 17
99.28
107. 23
114. 64
121. 59
128. 17
44
41. 16
58.20
71. 29 82.31
92.03 100.81
108. 89
116.41
123. 47
130. 15
45
41.78
59.08 72.36 83.56
93.42 102. 33
110. 53
118. 17
125. 33
132. 11
46 42.39
47 43.01
48
43.61
59.96 73.43 84.79
60.82 74.49
61.68 75.54 87.23
94.80 103.85
112. 17
119.91
127. 18
134. 06
86.01
96. 17105. 34
113. 79
121. 64
129. 02
136.00
97.53 106.83
115. 39
123.36
130. 84
137.92
49
44. 22
62.53 76.59
88.44 98.88 108.31
116. 99
125. 07 |132. 66
139.83
50
141. 73
44.82
100. 22 109. 78 118. 58 126. 76 134. 45
63.38 77.63 89. 89.64 64
466
HYDRAULIC TABLES
Table 37.-Velocity of water, v, in feet per second,
per second, based on
Manning's formula v=
1.486
n
r2/31/2
n=.050
.00005
.00020
.00010 .00015.00020 | .00025 | .00030 | .00035 | .00040 | .00045 | .00050
T
0.2
0.07
0.10
0.12
0. 14 0.16 0.18
0. 19 0.20
0.22
0.23
0.4 .11
.16
.20
23
.26
•
.28
.30
.32
.34
.36
0.6
.15
.21
.26
.30
.33
.37
.40
0.8
.18
.26
.42
.45
.47
.31
.36
.40 .44
.48
.51
.54
.57
1.0
.21
.30
.36
.42
.47
.51
56
•
•
.59 .63
.66
1.2
.24
.34
.41
47 .53
•
.58
63
.67
.71
.75
1.4
.26
.37
.46
.53
.59
.64
.70
.74
.79
.83
1.6
.29
.41
.50
.57
.64
.70
.76
.81
.86
.91
1.8
.31
.44
.54
.62
.70
.76
.82
.88
.93
.98
2.0
.33
.47
.58
.67
.75
.82
.88
.94
1.00
1.05
2.2
.36
.50
.62
.71
.79
.87
.94
1.01
1.07
1. 12
2.4
.38
. 53
.65
.75
.84
.92
1.00
1.07
1.13
1. 19
2.6 .40
.56
.69
.79
.89
.97
1.05
1.12
1. 19
1.26
2.8
.42
.59
.72
.83
.93
1.02
1.10
1.18
1.25
1.32
3.0
.44
.62
.76
.87
.98
1.07
1.16
1.24
1.31
1.38
3.2
.46
.65
.79
.91
1.02
1.12
1.21 1.29
1.37
3.4
.48
.67
1.44
.82
.95
1.06
1.16
1.26
1.34 1.43
1.50
8.6
.49
.70
.85
.99
1.10
1. 21
1.31 1.40
1.48
1.56
3.8
.51
.72 .89
1.02
1. 14
1.25
1.35
1.45
1.54
1.62
4.0
.53
.75
.92
1.06
1.18
1.30
1.40
1.50
1.59
1.67
4.2
.55
.77
.95
1.09
1.22
1.34
1.45
1.55
1.64
1.73
4.4
.56
.80
.98
1. 13
1.26
1.38 1.49
1.60
1.71
1.78
4.6
.58
.82
1.01
1. 16
1.30
1.42
1.54
1.64
1.74
4.8
1.84
.60
.85
1.04
1.20
1.34
1.46 1.58
1.69 1.79
1.89
5.0
5.2
5.4
5.6
5.8
0246 00
61
87
1.06
1. 23
1.37
1.51
1.63 1.74
1.84
1.94
.63
.89 1.09
1.26
1.41
1.55
1.67 1.78
1.89
1.99
.65
.91
1.12
1.29
1.45
1.58
.66
.94 1.15
1.71 1.83
1.94
2.05
1.33
1.48 1.62 1.75 1.87
1.99
.68
2.10
.96
1.18
1.36
1.52
1.66
1.79 1.92
2.04
2. 15
6.0
.69
.98
1.20
1.39
1.55
1.70
1.84
1.96
2.08
2.19
6.2
.71
1.00 1.23
1.42
1.59 1.74
1.88
2.01
2. 13
2. 24
6.4
.72
1.02 1.25
1.45
1.62 1.77
1.92
2.05
2.17
2. 29
6.6
.74
1.05 1.28
1.48
1.65 1.81
1.96
2.09
2,22
2.34
6.8
.75 1.07
1.31 1.51
1.69
1.85
2.00
2. 13
2.26
2.39
7.0
.77
1.09
1.33 1.54 1.72
1.88
2.03
2. 18
2.31
2.43
7.5
.81
1. 14
1.39 1.61
1.80
1.97
2. 13
2.28
2.42
8.0
2.55
.84
1. 19
1.46 1.68
1.88
2.06
2.22
2.38 2.52
2.66
8.5
.88
1. 24
1.52 1.75
1.96
2. 14
2.32
2.48 2.63
9.0
2.77
.91
1.29
1.57
1.82
2.03
2. 23
2.41
2.57 2.73
2.88
་

9.5
2.98
.94
2.67 2.83
1.33 1.63 1.89
2.49
2. 11
2.31
HYDRAULIC TABLES
467
Table 37.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
p2/3g1/2
n=.050-Continued

.00055
.00060.00065 |
.00065.00070 | .00075.00080 | .00085
.00080 | .00085 | .00090 | .00095 | .00100
0.2 0.24
0.25
0.26 0.27
0.28
0.29
0.30
0.30
0.31
0.32
0.4
.38
.40
.41
.43
.44
.46 .47
.48
.50
.51
0.6
.50
.52
.54
.56
.58
.60
.62
.63
.65
.67
0.8
.60
.63
.65
.68
.70
.72
.75
.77
.79
.81
1.0
.70
.73
.76
.79
.81
.84
.87
.89
.92
.94
1.2
.79
.82
.86
.89
.92
.95
.98
1.01
1.03
1.06
1.4
.87
.91
.95
.98
1.02
1.05
1.08
1.12
1.15
1.18
1.6
.95
1.00 1.04
1.08
1.11
1.15
1. 19
1.22
1.25
1.29
1.8
1.03
1.08 1.12
1.16
1.20
1.24
1.28
1.32
1.36
1.39
2.0
1.11
1.16 1.20
1.25
1.29
1.33
1.38 1.42
1.45
1.49
2.2
1. 18
1.23
1.28
1.33 1.38
1.42
1.47 1.51 1.55
1.59
2.4
1.25
1.30
1.36
1.41
1.46
1.51
1.55 1.60
1.64
1.68
2.8
1.32
1.38
1.43
1.49
1.54
1.59
1.64
1.69
1.73
1.78
2.8
1.38
1.45
1.51
1.56
1.62
1.67
1.72
1.77
1.82
1.87
3.0
1.45
1.51
1.58
1.64
1.69
1.75
1.80
1.85
1.91
1.95
3.2 1.51
1.58
1.65 1.71
1.77
1.83 1.88
1.94
1.99
2.04
3.4
1.58
1.65 1.71
1.78
1.84
1.90
1.96
2.02
2.07
2. 13
3.6
1.64
3.8
1.70 1.77
1.71 1.78
1.85 1.91
1.85 1.91 1.97 2.04
2.09
2. 15
2. 21
1.98
2.05
2.11
2.17
2.23
2. 29
4.0
1.76
1.83
1.91
1.98
2.05
2.12
2. 18
2.25
2.31
2.37
4. 2
1.81
1.90 1.97
2.05
2. 12
2.19
2.26
2.32
2.38
2.45
4.4
1.87
1.95
2.03
2.11
2.19
2.26
2.33 2.39
2.46
2. 52
4. 6
1.93
2. 01
2.10
2.17
2.25
2.33
2.40
2.47
2. 53
2.60
4.8
1.98
2.07
2.16
2. 24
2.32
2.39 2.47
2.54
2.61
2.67
5.0
2.04
2. 13
2. 22
2.30
2.38
2.46
2.53
2.61
2.68
2.75
5.2
2.09
2.19
2. 27
2.36
2.44
2. 52
2.60
2.68
2.75
2.82
5.4
2. 15
2. 24
2.33
2. 42
2. 51
2.59
2.67 2.74
2.82
2.89
5.6
2.20
2.30
2.39
2.48
2.57
2. 65
2.73 2.81
2.89
2.96
5.8
2. 25
2.35
2.45
2.54
2.63
2.71
2.80 2.88
2.96
3.03
8.0
2.30
2.40
2.50
2.60
2.69
2.78
2.86 2.94
3.02
3.10
6.2
2.35
2.46
2. 56
2.65
2.75 2.84
2.92
3.01
3.09
3.17
6.4 2.40
2. 51
2. 61
2.71
2.81 2.90
2.99
3.07
3. 16
3.24
6.6 2.45
2.56
2.67
2.77
2.86 2.96
3.05
3. 14
3.22
3. 31
6.8
2.50
2. 61
2.72 2.82
2.92
3.02
3.11
3.20
3.29
3.37
7.0
2.55
2.66
7.5
2. 67
2.79
8.0
2.79
2. 91
8.5
2.90
3.03
!
9.0
3.02
2.77 2.88
2.90
3.03 3.15
3.16 3.27 3.39
3.15 3.28 3.40
2.98
3.08
3.17
3.26
3.35
3.44
3.01 3.12
3. 22
3.32
3.42
3. 51
3.60
3.26
3.36
3.47
3.57
3.66
3.76
3.50
3.61
3.71
3.82
3.91
3.52
3. 64
3.75
3.86
3.96
4.07
9.5 3.13
4.22
3.27
4. 11
3.40
4.00
3.53
3.89
3.65
3.77
468
HYDRAULIC TABLES
Table 37.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.050—Continued


.0010
.0015
.0020 .0025 .0030 .0035 .0040
.0045
.0050
0.2
0.32
0.39
0.45
0.51
0.56
0.60
0.64
0.68
0.72
0.4
.51
.62
.72
.81
.88
.95
1.02
1.08
1. 14
0.6
.67
.82
.95
1.06
1. 16
1.25
1. 34
1. 42
1. 49
0.8
.81
.99
1. 15
1.28
1.40
1.52
1.62
1.72
1.81
1.0
.94
1. 15
1.33
1.49
1. 63
1.76
1.88
1.99
2.10
1.2
1. 06
1.30
1.50
1.68
1.84
1.99
2. 12
2.25
2.37
1.4
1. 18
1.44
1. 66
1.86
2.04
2.20
2.35
2.50
2. 63
1. 6
1.29
1.57
1.82
2.03
2.23
2. 41
2.57
2.73
2.87
1.8
1.39
1.70
1.97
2.20
2.41
2.60
2.78
2.95
3. 11
2.0
1.49
1.83
2. 11
2.36
2.58
2.79
2.98
3. 16
3.34
2.2
1.59
1.95
2.25
2. 51
2.75
2.97
3. 18
3.37
3. 55
2.4
1. 68
2.06
2.38
2.66
2.92
3. 15
3.37
3.57
3.77
2.6
1.78
2. 18
2.51
2.81
3.08
3.32
3.55
3.77
3.97
2.8
1.87
2. 29
2.64
2.95
3.23
3.49
3.73
3.96
4. 17
3.0
1.95
2.39
2.76
3.09
3.39
3.66
3.91
4. 15
4.37
3.2
2.04
2.50
2.89
3.23
3. 53
3.82
4.08
4.33
4.56
3.4
2. 13
2.60
3.01
3.36
3.68
3.98
4. 25
4.51
4.75
3.6
2.21
2.70
3. 12
3.49
3.82
4. 13
4. 42
4.68
4.94
3.8
2. 29
2.80
3. 24
3.62
3.96
4. 28
4.58
4.85
5. 12
4.0
2.37
2.90
3.35
3.74
4. 10
4.43
4.74
5.02
5.30
4.2
2. 45
3.00
3.46
3.87
4. 24
4. 58
4.89
5. 19
5.47
4.4
2.52
3.09
3.57
3.99
4.37
4.72
5.05
5. 35
5. 64
4.6
2.60
3. 18
3.68
4. 11
4.50
4.86
5.20
5. 51
5.81
4.8
2.67
3. 28
3.78
4. 23
4.63
5.00
5.35
5.67
5.98
5.0
2.75
3.37
3.89
4.35
4.76
5. 14
5.50
5.83
6. 14
5.2 2.82
3.45
3.99
4.46
4.89
5.28
5.64
5.98
6.31
5.4
2.89 3.54
4.09
4.57
5. 01
5. 41
5.79
6. 14
6.47
5.6 2.96
3.63
4. 19
4.69
5. 13
5.54
5. 93
6. 29
6. 63
5.8
3.03 3.72
4.29
4.80
5. 25
5.68
6.07
6. 44
6.78
6.0
3. 10
3.80
4.39
4.91
5.37
5.81
6.21
6. 58
6.94
6.2
3. 17
3.88
4.49
5.02
5. 49
5.93
6.34
6.73
7.09
6.4
3. 24
3.97
4.58
5. 12
5.61
6.06
6.48
6.87
7.24
6.6
3.31
4.05
4.68
5.23
5.73
6. 19
6.61
7.01
7.39
8.8
3.37
4. 13
4.77
5.33
5. 84
6.31
6.75
7. 16
7.54
7.0
3. 44
4. 21
4.86
5.44
5.96
6. 43
6.88
7.30
7.69
7.5
3.60
4.41
5.09
5. 69
6. 24
6. 74
7.20
7. 64
8.05
8.0
3.76
4.60
5.32
5. 94
6. 51
7.03
7.52
7.97
8.41
8.5
3.91
4.79
5. 54
6. 19
6.78
7.32
7.83
8.30
8.75
9.0
4.07
4.98
5.75
6. 43
7.04
7.61
8. 13
8.63
9.09
9.5
9.43
4. 22
8.94
5. 16
8.43
5.96
7.89
6. 67
7.30
HYDRAULIC TABLES
469
Table 37.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.050—Continued

8
.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090 .0095
.0100
0.2
0.75
0.79 0.82 0.85 0.88
0.91
0.94
0.96
0.99
1.02
0.4
1.20
1.25
1.30
1.35
1.40
1. 44
1.49
1. 53
1. 57
1.61
0.6
1.57
1.64
1.70
1.77
1.83
1.89
1.95
2.01
2.06
2.11
0.8
1.90
1.98
2.06
2. 14
2.22
2. 29
2.36
2.43
2.50
2. 56
1.0
2. 20
2.30
2.40
2.49
2.57
2.66
2. 74
2.82
2.90
2.97
1.2
2.49
2.60
2.71
2.81
2.91
3.00
3.09
3. 18
3. 27
3.36
1.4
2.76
2.88
3.00
3.11
3. 22
3.33
3.43
3. 53
3.63
3.72
1.6
3.02
3. 15
3.28
3.40
3.52
3.64
3.75
3.86
3.96
4.07
1.8
3.26
3. 41
3.55
3.68
3.81
3.93
4.05
4. 17
4. 29
4. 40
2.0
3.50
3.65
3.80
3.95
4.09
4. 22
4.35
4.48
4.60
4.72
2.2
3.73
3.89
4.05
4. 21
4. 35
4.50
4.63
4.77
4.90
5.03
2.4
3.95
4. 13
4.30
4.46
4. 61
4.77
4.91
5.05
5. 19
5. 33
2.6
4. 17
4. 35
4. 53
4.70
4.87
5.03
5. 18
5.33
5.48
5.62
2.8
4. 38
4.57
4.76
4. 94
5. 11
5. 28
5. 44
5.60
5.75
5.90
3.0
4. 58
4.79
4.98
5. 17
5.35
5.53
5.70
5.86
6.03
6. 18
3.2
4.79
5.00
5. 20
5.40
5.59 5.77
5.95
6. 12
6. 29
6.45
3. 4
4.98
5. 21
5. 42
5.62
5.82
6.01
6. 20
6.38
6. 55
6.72
3.6
5. 18
5. 41
5. 63
5.84
6.05
6.24
6. 44
6.62
6.80
6.98
3.8
5.37
5.61
5.83
6.06
6. 27
6.47
6.67
6.87
7.05
7.24
4. 0
5. 55
5.80
6.04
6.27
6.49
6.70
6.90
7.10
7.30
7.49
4.2
5.74
5.99
6. 24
6.47
6.70
6.92
7. 13
7.34 7.54
7.74
4.4
5.92
6. 18
6.43
6.68
6.91
7.14
7.36
7.57 7.78
7.98
4. 6
6. 10
6.37
6.63
6.88 7.12
7.35
7.58
7.80 8.01
8.22
4.8
6. 27
6.55
6.82 7.08
7.32
7.56
7.80
8.02
8.24
8.46
5.0
6. 44
6.73
7.01 7.27
7.53
7.77
8.01
8.24
8.47
8.69
5.2
6.62
6.91 7.19 7.46
7.73
7.98
8. 22
8.46
8.69
8.92
5.4
6.78
7.09 7.38 7.65
7.92
8. 18
8.43
8.68
8.92
9. 15
5. 6
6.95
7.26
7.56
7.84
8. 12
8.38
8.64
8.89 9.13
9.37
5.8
7.12
7.43
7.73
8.03
8.31
8.58
8.85
9.10 9.35
9.59
6.0
7.28
7.60
7.91
8. 21
8.50
8.78
9.05
9.31
9.56
9.81
6.2
7.44
7.77
8.09
8.39
8.69
8.97
9.25
9.52
9.78
10.03
6.4
7.60
7.94
8.26
8.57
8.87 9.16
9.45
9.72
9.99
10. 24
6.6
7.76
8. 10
8.43
8.75 9.06
9.35 9.64
9.92
10. 19
10.46
6.8
7.91
8.26
8.60
8.92
9.24
9.54
9.83
10. 12
10.40
10. 67
7.0
8.07
8.42
8.77
9. 10
9.42
9.73 10.03
10.32
10.60
10.88
7.5
8.45
8.82
9. 18
9.53 9.86
10.19
10.50
10.80
11.10 11.39
8.0
8.82
9.21
9.58 9.95
10.30
10.63
10.96
11. 28
11.59 11.89
8.5
9. 18
9.59
9.98 10.36
10.72
11.07
11. 41
11.74
12.06 12.38
9.0
9. 54
9.96
10.37 10.76
11. 14
11.50
11.86
12. 20
12.53
12.86
9.5
12.99 13.33
9.89
12.65
10.33
12. 29
10.75 11. 15
11.92
11.55
470
HYDRAULIC TABLES
Table 37.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.050—Continued

S
· 01
02
.03
.04
.05
06
07
•
.08
.09
10
•
T
0.2
1.02
1. 44
1.76
2.03
2. 27
2.49
2. 69
2.87
3.05
3. 21
0.4
1.61
2. 28
2.79
3.23
3.61
3.95
4. 27
4.56
4.84
5. 10
0.6 2.11
2.99
3.66
4. 23
4.73
5. 18
5.59 5.98
6.34
6. 69
0.8
2.56
3. 62
4. 44
5. 12
5.73
6.27
6.78
7.24
7.68
8. 10
1.0
2.97
4.20
5. 15
5.94
6.65
7.28
7.86
8.41
8.92
9.40
1.2
3.36
4.75
5.81
6.71
7.50
8.22 8.88
9.49
10.07
10. 61
1. 4
3.72
5.26
6. 44
7.44
8.32
9.11 9.84
10.52
11, 16
11.76
1.6
4.07
5. 75
7.04
8. 13
9.09
9.96
10.76 11.50
12.20
12.86
1.8
4.40
6. 22
7.62
8.80
9.83
10.77
11.64
12.44
13. 19
13.91
2.0
4.72
6.67
8.17
9.44
10.55
11.56
12. 48
13. 34
14. 15
14.92
2.2 5.03 7.11
8.71
10.05
11. 24
12.31
13.30
14.22
15.08
15.90
2.4 5.33 7.53
9.23
10. 65
11.91
13.05
14. 10
15.07
15.98
16.85
2.6
5.62
7.95
9.73
11. 24
12.57
13.76
14.87
15.89
16.86
17.77
2.8
5.90
8.35
10. 23
11.81
13.20
14. 46
15.62
16. 70
17.71
18.67
3.0
6. 18
8.74
10. 71
12.36
13.82
15. 14
16.36
17.49
18.55
19.55
3.2
6.45
9. 13
11. 18
12.91
14.43
15.81
17.08
18.25
19.36
20.41
3. 4
6. 72
9.50
11. 64
13. 44
15.03
16.46
17.78
19.01
20. 16
21.25
3.6
6.98
9.87
12.09
13.96
15.61
17. 10
18.47
19.75
20.94
22.08
3.8
7. 24
10. 23
12.54
14.47
16. 18
17.73
19. 15
20.47
21.71
22.89
4.0
7.49
10.59
12.97 14.98
16.75
18.34
19.81
21.18
22.47
23.68
4. 2
7.74
10.94
13.40 15.47
17.30
18.95
20.47
21.88
23. 21
24.47
4.4
7.98
11. 29
13.82
15.96
17.84
19. 55
21. 11
22. 57
23.94
25.24
4. 6
8.22
11.63
14. 24
16.44
18.38
20. 14
21.75
23.25
24.66
25.99
4.8
8.46
11.96
14.65
16. 91
18.91
20.72
22.37
23.92❘ 25.37
26.74
5.0
8.69
12. 29
15.05
17.38
19.43 21.29
22.99❘ 24.58 26.07
27.48
5. 2
8.92
12.62
15.45 17.84
19.95
21.85
23.60
25.23 26.76
28.21
5. 4
9. 15
12.94
15.84 18.30
20.45
22.41
24.20
25.87 27.44
28.93
5. 6
9.37
13.25
16.23
18.74
20.96
22.96
24.80
26. 51
28.12
29.64
5.8
9.59
13.57 16.62
19. 19
21.45
23.50 25. 38
27.14
28.78
30.34
6.0
6.2
6.4
6.6
6.8
0240 00
9.81
13.88
17.00
19.63
21.94
24.04❘ 25.96
27.76
29.44
31.03
10.03
14. 18
17.37
20.06
22. 43
24.57
26.54
28.37 30.09
31. 72
10. 24
14.49
17.74 20.49
22.91
25.09
27. 11
28.98 30.73
32.40
10. 46
14.79 18.11 20.91
23.38
25.61
27.67
29.58 31.37
33.07
10.67
15.09 18.48
21.33
23.85
26. 13
28.22 | 30. 17 | 32.00
33.73
7.0
10.88
15.38 18.84
21.75 24.32
26.64
28.77
30.76
32.63
34.39
7.5
11.39
16. 10
19.72
22.77 25.46
27.89
30. 13
32.21
34. 16
36.01
8.0 11.89
16.81
20.59 23.78 26.58 29. 12
31.45
33.62
35.66
37.59
8.5 12.38
17.51
9.0 12,86
18. 19
21.44 24.76 27.68 | 30.32 | 32.75
22.27 25.72 28.75 31.50
35.01
37. 13
39. 14
34.02
36.37
38.58
40.66
9.5 13.33
42. 16
18.85
39.99
23.09 26.66
37.71
29.81
35. 27
32.65
HYDRAULIC TABLES
471
Table 37.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.050- Continued

.00010 .00015.00020 | .00025.00030.00035.00040.00045.00050
.00005
T
23
25
26
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
PERRI 1-**- 22222 222OR ANN** **** *****
10
0.98 1.38
1.69 1.95 2. 18 2.39 2.58
2.76
2.93
3.08
11
1.04
1.47
1.80 2.08
2.32 2.55 2.75
2.94
3. 12
3. 29
12
1.10
1.56
1.91
2.20
2.46
2.70
2.91
3. 12
3.30
3.48
13
1.16
1.64
2.01
2.32
2.60
2.85
3.07
3.29
3.49
3.67
14
1.22
1.73
2. 11
2.44
2.73
2.99
3.23
3.45
3.66
3.86
15 1.28
1.81
2. 21
2.56
2.86
3. 13
3.38
3.62
3.83
4.04
16
1.33
1.89
2.31
2.67 2.98
3.27
3. 53
3.77
4.00
4.22
17 1.39
1.96
2.41
2.78
3.11
3.40
3.68
3.93
4. 17
4.39
18 1.44
2.04
2.50
2.89
3.23
3. 54
3.82
4.08
4. 33
4. 56
19
1.50
2.12
2.59
2.99
3.35
3.67
3.96
4.23
4.49
4.73
20 1.55
2. 19
2.68
3. 10
3.46
3.79
4. 10
4. 38
4.65
4.90
21 1.60
2. 26
2.77
3. 20
3. 58
3.92
4. 23
4. 52
4.80
5.06
1.65
2.33
2.86
3.30
3.69
4.04
4.37
4. 67
4.95
5. 22
1.70
2.40
2.94
3.40
3.80
4. 16
4.50
4.81
5. 10
5.37
24
1.75
2.47
3.03
3.50
3.91
4.28
4. 63
4.95
5.25
5. 53
1.80
2.54
3. 11
3.59
4.02
4.40
4.75
5.08
5.39
5.68
1.84
2.61
3. 19
3.69
4. 12
4.52
4.88
5. 22
5.53
5.83
27
1.89
2.67
3.28
3.78
4. 23
4.63
5.00
5.35
5.67
5.98
1.94
2.74
3.36
3.88
4.33
4.75
5. 13
5. 48
5.81
6. 13
1.98
2.81
3.44
3.97
4. 44
4.86
5. 25
5.61
5.95
6.27
2.03
2.87
3. 51
4.06
4. 54
4.97
5.37
5.74
6.09
6.42
2.07
2.93
3. 59
4. 15
4.64
5.08
5. 49
5.87
6. 22
6. 56
2. 12
3.00
3.67
4. 24
4.74
5. 19
5.60
5.99
6.35
6.70
2. 16
3.06
3.74
4. 32
4.83
5.30
5.72
6. 12
6.49
6.84
34
2. 21
3. 12
3.82
4. 41
4.93
5. 40
5.84
6. 24
6.62
6.97
2.25
3. 18
3.89
4. 50
5.03
5.51
5.95
6.36
6.75
7.11
2. 29
3. 24
3.97
4. 58
5. 12
5.61
6.06
6.48
6.87
7.25
2. 33
3.30
4.04
4.67
5. 22
5.72
6. 17
6.60
7.00
7.38
2.38
3.36
4. 11
4.75
5.31
5.82
6. 28
6.72
7. 13
7.51
2.42
3. 42
4. 19
4.83
5.40
5.92
6.39
6.84
7.25
7.64
2.46
3.48
4. 26
4.92
5.50
6.02
6.50
6.95
7.37
7.77
2.50
3.53
4.33
5.00
5. 59
6. 12
6.61
7.07
7.50
7.90
2. 54
3. 59
4.40
5.08
5.68
6. 22
6.72
7. 18
7.62
8.03
2.58
3.65
4. 47
5. 16
5.77
6.32
6.82
7.30
7.74
8. 16
2.62
3.70
4. 54
5. 24
5.86
6.42
6.93
7.41
7.86
8.28
45 2.66
3.76
4. 61
5.32
5.95
6. 51
7.03
7.52
7.98
8.41
46
2.70 3.82
4.67
5.40
6.03
6.61
7. 14
7.63
8.09
8.53
47 2.74 3.87
4.74
5.47
6. 12
6.70
7.24
7.74
8. 21
8.65
48
2.78
3.93
4. 81
5. 55
6. 21
6.80
7.34
7.85
8.33
8.78
49
2.81 3.98
4.87
5. 63
6. 29
6.89 7.45
7.96
8. 44
8.90
50 2.85 4.03
9.02
4.94
8.56
5.70
8.07
6. 38
7.55
6.99
472
HYDRAULIC TABLES
Table 37.—Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= -r2/31/2
n=.050-Continued

.00055
.00060
.00065 .00070.00075.00080.00085.00090.00095 .00100
T
10
3. 24
3.38
3.52 3.65 3.78
3.90
4.02
4. 14
4. 25
4.36
11
3.45
3.60 3.75
3.89
4.03
4. 16
4. 29
4.41
4.53
4. 65
12
3. 65
3.82
3.97
4. 12
4.27
4.41
4.54
4.67
4.80
4.93
13
3.85
4.02
4. 19
4.35
4.50
4. 65
4.79
4.93
5.06
5.20
14
4.05
4.23
4.40
4.57
4.73
4.88
5.03
5.18
5.32
5.46
15
4. 24
4.43
4. 61
4.78
4.95
5.11
5.27 5.42
5.57
5.72
16
4. 43
4.62
4.81
4.99
5.17
5.34
5.50
5.66
5.82
5.97
17
4. 61
4.81
5.01
5. 20
5.38
5.56
5.73
5.89
6.06
6. 21
18
4.79
5.00
5. 20
5.40
5.59
5.77
5.95
6. 12
6.29
6.46
19
4.96
5.18
5.40
5. 60
5.80
5.99
6. 17
6.35
6.52
6.69
2222R
20
5. 14
5.36
5.58
5.79
6.00
6. 19
6.38
6.57
6.75
6.92
21
5.31
5.54 5.77
5.99
6. 20
6. 40
6.60
6.79
6.97
7.15
22
5.47
5.72
5.95
6.17
6.39
6.60
6.80 7.00
7.19
7.38
23
5. 64
5.89
6. 13
6.36
6.58
6.80 7.01 7.21
7.41
7.60
24
5.80
6.06
6.30
6.54
6.77
6.99
7.21 7.42
7.62
7.82
27
28
29
PREHR AM**- ---88
25
5.96
6. 22
6.48
6.72 6.96
7.19
7.41
7.62
7.83
8.04
26
6.12
6.39
6.65
6.90
7.14 7.38
7.60
7.83
8.04
8.25
6. 27
6.55
6.82 7.08
7.33
7.57
7.80
8.02
8.24
8.46
6.43
6.71
6.99 7.25
7.51
7.75
7.99
8. 22
8.45
8.67
6.58
6.87
7.15 7.42
7.68
7.93
8. 18
8.42
8.65
8.87
30
6.73
7.03
7.32 7.59
7.86
8. 12
8.37
8.61
8.84
9.07
31
6.88 7.18
7.48 7.76 8.03
8.30
8.55
8.80
9.04
9.27
32
7.03
7.34
7.64
7.93
8.20
8.47
8.73
8.99
9.23
9.47
33
7.17 7.49
7.80 8.09
8.37
8.65
8.91
9. 17
9.42
9.67
34
7.32
7.64
7.95 8.25
8.54
8.82
9.09
9.36
9.61
9.86
35
7.46
7.79
8. 11
8.41
8.71 8.99
9.27
9.54
9.80
10.06
36
7.60
7.94
8.26
8.57 8.87 9.16
9.45
9.72
9.99
10.25
37 7.74 8.08 8.41
8.73 9.04
9.33
9.62
9.90
10. 17
10.44
38
7.88
8.23 8.56
8.89
9.20
9.50
9.79
10.08
10.35
10.62
39
8.02 8.37 8.71
9.04
9.36
9.67
9.96
10.25 10.53
10.81
40
8. 15
8.51
8.86
9.20
9.52
9.83 10.13 10.43 10.71
10.99
41
8.29
8.66
9.01 9.35
9.68
10.00
10.30 10.60
10.89 11.17
42 8.42
8.80 9.16 9.50
9.83
10. 16
10.47
10.77
11.07
11.36
43
44 8.69
8.55
8.94 9.30
9.65
9.99
10.32
10.63
10.94
11. 24
11.54
9.07 9.44
9.80
10. 14
10.48
10.80
11. 11
11. 42
11.71
46
45 8.82
8.95
9.21
9.59 9.95
10.30
10.63
10.96
11.28
11.59
11.89
9.35
9.73 10.09
10.45
10.79
11. 12
11.45
11.76
12.07
47 9.08
9.48
9.87 10.24
10.60
10.95
11. 28
11. 61
11.93
12. 24
48
9.21
9.62
10.01 10.39 10.75
11.10
11.44
11.78
12.10
12. 41
49
9.33
9.75
10. 15 10.53
10.90
11. 26
11.60
11.94
12. 27
12.58
50
12. 76
9.46
12.43
9.88 10.28 10.67
12. 10
11.05
11.76
11.41
HYDRAULIC TABLES
473
Table 37.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.050—Continued

8
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045 .0050
30
31
32
34
35
36
38
39
40
41
42
47
48
PERRI 4-702 22234 22583 97*** *** S**** *****
10
4. 36
5.34
6. 17
6.90
7.56
8.16
8.72
9.25
9.75
11
4. 65
5.69
6. 57
7.35
8.05
8.70
9.30
9.86
10.39
12
4.93
6. 03
6.97
7.79
8.53
9.22
9.85
10.45
11.02
13
5.20
6. 36
7.35
8. 22
9.00
9.72
10.39
11.02
11.62
14
5.46
6. 69
7.72
8.63
9.46
10. 21
10.92
11.58
12. 21
15
5.72
7.00
8.08
9.04
9.90
10.69
11.43
12. 13
12.78
16
5.97
7.31
8. 44
9.44
10.34
11. 16
11.94
12.66
13. 34
17
6. 21
7.61
8.79
9.82
10.76
11.62
12.43
13. 18
13.89
18
6.46
7.91
9. 13
10. 21
11. 18
12.08
12.91
13.69
14.43
19
6.69
8.20
9.46
10.58
11.59
12.52
13.38
14. 20
14.96
20
6.92
8.48
9.79
10.95
11.99
12.95
13.85
14. 69
15. 48
21
7.15 8.76
10. 12
11.31
12.39
13. 38
14. 31
15. 18
16.00
7.38
9.04
10.44
11.67
12.78
13.80
14.76
15.65
16.50
7.60 9.31
10.75
12.02
13. 17
14. 22
15. 20
16. 12
17.00
7.82
9.58
11.06
12.36
13. 54
14. 63
15. 64
16.59
17.49
8.04
9.84
11.36
12.71
13.92
15.03
16. 07
17.05
17.97
26
8.25
10. 10
11.66
13.04
14.29
15. 43
16. 50
17.50
18.44
27
8.46
10.36
11.96
13.37
14. 65
15.82
16.92
17.94
18.91
8.67
10. 61
12.26
13.70
15. 01
16. 21
17.33
18.38
19.38
29
8.87
10.86
12.55
14. 03
15. 37
16.60
17.74
18.82
19.84
9.07
11. 11
12.83
14. 35
15. 72
16.98
18. 15
19. 25
20.29
9.27
11.36
13. 12
14.66
16.06
17.35
18.55
19. 67
20.74
9.47
11.60
13. 40
14.98
16. 41
17.72
18.95
20.10
21. 18
33 9.67 11.84
13. 67
15. 29
16.75
18. 09
19.34
20.51
21.62
9.86 12.08
13.95
15.60
17.08
18.45
19. 73
20.92
22.06
10.06
12.32
14. 22
15.90
17.42
18. 81
20. 11
21.33
22.49
10.25
12.55
14.49
16. 20
17.75
19. 17
20.49
21.74
22. 91
37 10.44
12.78
14.76
16.50
18.07
19. 52
20.87
22. 14
23.33
10.62
13. 01
15. 02
16.80
18.40
19.87
21. 25
22.53
23.75
10.81
13. 24
15.29
17.09 18.72
20.22
21. 62
22.93
24. 17
10.99
13. 46
15.55
17.38 19.04
20.56
21.98
23.32
24. 58
11. 17
13. 69
15.80
17.67
19.36
20.91
22.35
23.71
24.99
11.36
13.91
16.06
17.95
19.67
21. 24
22.71
24.09
25.39
43 11.54
14. 13
16.31
18. 24
19.98
21:58
23.07
24. 47
25.79
44 11.71
14.35
16.57
18.52
20.29
21.91
23. 43
24.85
26. 19
45 11.89
46 12.07
14. 56
16.82 18.80
20.59
22. 24
23.78
25. 22
26.59
14.78
17.06 19.08
20.90
22.57
24. 13
25.60
26.98
12.24
12.41
14.99
17.31
19.35 21.20
22.90
24.48
25.96
27.37
15. 20
49 12.58
17.55
15. 41 17.80
19.63
19.90 21.80
21.50
23. 22
24.83
26.33
27.76
23.54
25. 17
26.70
28. 14
50
12.76
15. 62 18.04 20.17
22.09
23.86
25.51
27.06
28.52
563189°—-44.
-31
474
HYDRAULIC TABLES
Table 37.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.050—Continued

8
.0055
.0060
.0065
.0070
.0075
.0080 .0085
.0090
.0095
.0100
T
16
21
26
PERRI UC202 222** ***AR AMA❤** ***** S*** 9999
10
10.23
10.69
11. 12
11.54
11.95
12. 34
12.72
13.09
13.45
13. 79
11
10.90
11.39
11.85
12.30
12.73
13. 15
13.55
13.95
14.33
14.70
12
11.55
12.07 12.56
13.03
13.49
13.93
14.36
14.78
15. 18
15. 58
13
12. 19
12.73
13.25
13.75
14. 23
14. 70
15. 15
15.59
16.02
16.43
14
12.80
13.37
13.92
14. 44
14.95
15.44
15.92
16.38
16.83
17.26
15
13.41
14.00
14. 57
15. 12
15. 65
16. 17
16. 67
17.15
17.62
18.08
14.00
14.62
15. 21
15.79
16.34
16.88
17.40
17.90
18.39
18. 87
17
14. 57
15. 22
15.84
16. 44
17.02
17.57
18. 12
18. 64
19. 15
19.65
18 15. 14
15.81
16.46
17.08
17.68
18.26
18.82
19.37
19.90
20.41
19
15.69
16.39
17.06
17.71
18.33
18.93
19.51
20.08
20.63
21. 16
20
16. 24
16.96
17.65
18.32
18.96
19.59
20. 19
20.77
21.34
21.90
16.78
17.52
18. 24
18.93
19.59
20. 23
20.86
21.46
22.05
22.62
17.31
18. 07
18.81
19. 52
20. 21
20.87
21.51
22. 14
22.74
23.33
23
17.83
18.62
19.38
20. 11
20.82
21.50 22.16
22.80
23.43
24.04
24
18.34
19. 15
19.94
20.69
21.42
22.12
22.80
23.46
24. 10
24.73
25 18.84 19.68
20.49
21. 26
22.01
22.73 23.43
24.11 24.77
25.41
19.34 20.20
21.03
21.82
22.59
23.33
24.05
24.74 25.42
26.08
27 19.84 20.72
21. 56
22.38 23.16
23.92
24.66
25.38
26.07
26.75
28 20.32
21.23
22.09
22.93
23.73
24.51
25. 27
26.00
26.71
27.40
29
20.80
21.73 22.62
23.47
24.29
25.09
25.86
26.61
27.34
28.05
30
21.28
22.23
23. 13
24.01
24.85
25. 67
26.45
27.22 27.97
28.69
31
21.75
22.72
23.65
24. 54
25.40
26. 23
27.04
27.82 28.59
29.33
32 22.22
23.20
24. 15
25.06
25.94
26. 79
27.62
28.42 | 29. 20
29.96
33
22.68
23.68
24. 65
25.58
26.48
27.35
28. 19
29.01 29.80
30.58
34
23. 13
24. 16
25. 15
26. 10
27.01
27.90
28.76
29.59
30.40
31. 19
35
23.58
24.63
25.64
26.61 27.54
28.44
29.32
30. 17
30.99
31.80
36
24.03
25. 10
26.12
27.11
28.06
28.98 29.87
30.74
31.58
32.40
37
24.47
25.56
26. 61
27.61
28.58
29.52 30.42 31.31
32. 16
33.00
38 24.91
26.02
27.08
28. 11
29.09
30.05 30.97 31.87
32.74
33. 59
39 25.35
26.47
27.56
28.60
29.60
30.57 31.51 32.42
33. 31
34. 18
40
41
25.78
26. 21
26.93
28.02 | 29.08
30.10
31.09
32.05 32.98
33.88
34.76
27.37 28.49 29.57
30.60
31.61
32.58
33.52
34. 44
35. 34
42
26.63
27.82 28.95 30.04
31. 10
32. 12
33. 11
34.07
35.00
35.91
43
27.05 28.26 29.41 30.52
31.59
32. 63
33.63
34.61
35.55
36.48
44 27.47 28.69 29.86 30.99
32.08
33. 13
34. 15
35. 14
36, 10
37.04
45 27.89 29.12
30.31 31.46
32.56
33.63
34.67
35.67
36.65
37.60
46 28.30 29.55
30.76
31.92
33.04
34. 13
35. 18
36.20
37. 19
38. 16
48
47 28.71
29.11 30.41
29.98 31. 21
32.38
33.52
34.62
35.69
36.72
37.73
38.71
31.65
32.84 33.99
35. 11
36. 19
37. 24
38.26
39.25
49 29.51 30.83 32.09
33.30 34.46
35.60
36.69
37.75
38. 79
39.80
50 29.91
40.34
31. 24 32.52 33.75 34.93
39.31
36.08
38.27
37. 19
HYDRAULIC TABLES
475
Table 37.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
*
n-.050—Continued

.01
.02
.03
.04 .05
.06
.07
.08
.09
.10
r
10
13.79
19.51
23.89
27.59
30.85
33.79
36.50
39.02
41.38
43.62
11
14.70
20.79
25. 46
29.40
32.87
36. 01
38.89
41.58
44. 10
46.48
12
15.58
22.03
26.98
31.16
34.83
38.16
.41. 21
44.06
46.73
49.26
13
16. 43
23.24
28.46
32.86
36.74
40.25
43.47
46.48
49.29
51.96
14
17.26
24. 41
29.90
34.53
38.60
42.29
45.68
48.83
51.79
54.59
15
18.08
25.56
31. 31
36.15 40.42
44.28 47.83
51.13
54.23
57.16
16
18.87
26.69
32.69
37.74 42.20
46.22 49.93
53.38
56. 61
59.68
17
19.65
27.79
34.03 39.30
43.94
48.13
51.99
55.58
58.95
62. 14
18
20. 41
28.87
35.36 | 40.83
45.64
50.00
54. 01
57.74
61. 24
64. 55
19
21.16
29.93
36.65
42.32
47.32
51.84
55.99
59.85
63.49
66.92
20
21.90
30.97
37.93
43.80
48.97
53. 64
57.94
61.94
65.69
69.25
21 22.62
31.99 39. 18
45. 24
50.58
55. 41
59.85 63.98 67.87
71.54
22
23.33
33.00
40.42
46.67
52. 18
57.16
61.74 | 66.00 | 70.00
73.79
23
24.04
33.99
41.63
48.07
53.75
58.88
63.59 67.98 72.11
76.01
24
24. 73
34.97
42.83
49.46
55.29
60.57 65.42
69.94
74. 18
78.20
25
25. 41
35.94
44. 01
50.82
56.82 62.24 67.23
71.87
76.23
80.35
26
26.08
36.89
45. 18
52. 17
58.32
63.89
69.01
73.78
78.25
82.48
27
26.75
37.83
46.33
53.50
59.81 65.52
70.77
75.65
80. 24
84.58
28
27.40
38.76
47.47
54.81 61.28 67.13
72.51
77.51
82.21
86.66
29
28.05
39.67
48. 59
56.11 62.73
68.72
74.22
79.35
84.16
88.71
30
28.69
40.58 49.70
57.39
64.16
70.29
75.92
81.16
86.08
90.74
31
29.33
32 29.96
42.36
41.48 50.80 58.66 65.58
51.89
71.84
77.60 82.95 87.99
92.74
59.91 66.98
73.38
79.26
84.73 89.87
94.73
33
30.58
43. 24
52.96 61.15
68.37
74.90
80.90
86. 48
91.73
96.69
34
31.19
44.11
54.03 62.38
69.75
76.40
82.52 | 88. 22
93.57
98.64
35
31.80
44.97
55.08
63.60 71.11
77.89
84.13 | 89.94
95.40
100.56
36
32.40
45.82
56. 12
64.81 72.46 79.37 85.73 91.65
97.21
102.47
37
33.00
46.67
57.16
66.00
73.79
80.83
87.31
93.34 99.00
104.36
38
33.59
47.51
58. 18
67.18
75. 11
82.28
88.88
95.01 100. 78
106. 23
39
34. 18
48. 34
59.20
68.36
76.43
83.72
90.43
96.67 102. 54
108.08
40
34.76
49. 16
60. 21
69.52 77.73 85.15
91.97
98.32 104. 28
109.92
41 35.34
49.98
61,21
70.68 79.02
86.56
42
35.91
50.78
62.20
71.82 80.30
87.96
43
36.48
51.59
63. 18
72.96 81.57
89.35
44
37.04
52.38
64.16
74.08 82.83
90. 73
93.49
95.01 101.57 107.73
96. 51 103.17 109.43
98.00 104.77 111. 12
99.95 106. 01
111.75
113.56
115.35
117. 13
45
37.60
53. 17
65. 13
46
38.16
53.96
66.09
47
38.71
54. 74
67.04
48
39.25
55. 51 67.99
49
39.80
56.28
75.20 84.08 92.10 99.48 106.35 112.80
76.31 85.32 93.46 100.95 107.92 114. 47
77.41
86.55 94.81 102.41 109.48 116. 12
78.51 87.77 96.15 103.85 111.03 117.76
68.93 79.59 88.99 97.48 105.29 112. 56 119.39
118.90
120. 66
122.40
124. 13
125.85
50 40.34
127.55
57.04 69.86 80.67 90.19 98.80 106. 72 114.09 121.01
476
HYDRAULIC TABLES
Table 38.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.055

.00005 | .00010
.00015.00020.00025 .00030.00035.00040.00045.00050
T
0.2
0.07
0.09 0.11
0.13
0.15 0.16
0.17
0.4
0.18 0.20
0.21
.10
.15
.18
.21
.23
.25
.27
.29
.31
0.6
.33
.14
.19
.24
.27
.30
.33
.36
.38
.41
0.8
.43
.16
.23
.29
.33
.37
.40
.44
.47
49
•
.52
1.0
1.2
1,4
1.6
1.8
0248 AD
.19
.27
.33
.38
.43
.47
.51
.54
.57
.60
.22
.31
.37
.43
.48
.53
.57
.61
.65
.68
24
•
34
.41
•
.48
.53
.59
.63
.68
.72
.76
.26
.37
45
.52
.58
64
.69
.74
.78
.83
.28
.40
.49
.57
.63
.69
.75
.80
.85
.89
2.0
2. 2
2.4
2.6
2.8
0246 0
.30
43
.53
•
.61
68
•
.74
.80
.86
.91
.32
.96
.46
.56
.65
•
.72 .79
.86
.91
.97
1.02
.34
.48
.59
.68
.77
.84
.91
.97
1.03
1.08
.36
.51
.63
.72
.81
.88
.96
1.02
1.08
1.14
.38
.54
.66
.76
.85
.93
1.00
1.07
1.14
1.20
es es es es es
3,0
.40
.56
.69
.79
.89
.97
1.05
1.12
1.19
3.2
· 41
1.26
.59 .72
.83
.93
1.02
1.10
1.17
1. 24
1. 31
3.4
.43
. 61
.75
.86
.97
1.06
1.14
1.22
3.6
· 45
1.30
1.37
.63
.78
.90
1.00
1.10
1.19
1.27
1.35
1.42
3.8
.47
.66
.81
.93
1.04
1. 14
1.23
1.32
1.40
1.47
4.0
.48
68
.83
.96
1.08
1. 18
1.27
1.36
1.44
1.52
4.2
.50
.70
.86
.99
1. 11
1. 22
1.32
1.41
1.49
1.57
4.4
.51
.73
.89
1.03
1. 15
1.26
1.36
1.45
1. 54
1.62
4.6
.53
.75
.92
1.06
1.18
1.29
1.40
1.49
1.59
4.8
1.67
.54
.77
.94
1.09
1. 22
1.33
1.44
1.54
1.63
1.72
5.0
5.2
5.4
5.6
5.8
0246 α
· 56
.79
.97
1. 12
1.25
1.37
1.48 1.58
1.68
1.77
. 57
.81
.99
1. 15
1. 28
1.40
1.52
1.62
1.72
1.81
.59
.83
1.02
1.18
1.31
1.44
1. 56
1.66
1.76
1.86
.60
.85 1.04
1.20
1.35
1.48
1.59
1.70
1.81
1.91
.62
.87 1.07
1.23
1.38
1.51
1.63 1.74
1.85
1.95
6.0
.63
.89
1.09
1.26
1. 41
1.55
1.67
1.78
1.89
1.99
6.2
.64
.91
1.12
1.29
1. 44
1.58
1.71
1.82 1.93
6.4
2.04
.66
.93
1. 14
1.32
1.47
1.61
1.74 1.86 1.98
6.6
2.08
.67
.95
1.16
1.34
1.50 1.65
1.78
1.90
2.02
2. 13
6.8
.69
.97
1.19
1.37
1.53
1.68
1.81
1.94
2.06
2. 17
7.0
70
99 1. 21
•
1.40
1.56
1.71
1.85
1.98
2.10
2. 21
7.5
.73
1.04
1.27
1.46
1.64
1.79
1.94
2.07
2.20
2. 31
8.0
.76
1.08
1.32
1.53
1.71
1.87
2.02
2. 16
2. 29
8.5
2.42
.80
1. 13
1.38 1.59
1.78
1.95
2. 11
2.25
2.39
9.0
· 83
2.52
1.17
1.43 1.65
1.85
2.02
2. 19
2.34
2.48
2.61
9.5
2.71
.86
2.57
1.21
2.42
1.48
2.27
1.71 1.92
2.10
HYDRAULIC TABLES
477
Table 38.-Velocity of water, v, in feet per second, based on
$
.00055
до
1.486
Manning's formula v= -r2/31/2
n=.055—Continued
n

|
.00065.00070.00075 .00080.00085 .00090.00095 .00100
.00070
|
0.2
0.22
0.23
0.24
0.24 0.25 0.26 0.27
0.28 0.28
0.29
0.4 .34
.36
.37
.39
.40
.41
.43
.44
.45
.46
0.6
.45
.47
.49
.51
.53
.54
.56
.58
.59
.61
0.8
.55
.57
.59
.62
.64
.66
.68
.70
.72
.74
1.0
.63
.66
.69
.71
.74
.76
.79
.81
.83
.85
1.2
.72
.75
.78
.81
.84
.86
.89
.92
.94
.96
1.4
.79
.83
.86
.89
.93
.96
.99
1.01
1.04
1.07
1.6
.87
.91
.94
.98
1.01
1.05
1.08
1. 11
1.14
1.17
1.8
.94
.98
1.02
1.06
1.09
1. 13
1.17
1,20
1.23
1.26
2.0
1.01
1.05
1.09
1. 13
1. 17
1.21
1. 25
1. 29
1.32
1.36
2.2
1.07
1. 12
1.17
1. 21
1.25
1.29
1.33
1.37
1.41
1.45
2.4
1. 14
1.19
1.23
1.28
1.33
1.37
1.41
1.45
1.49
1.53
2.6
1.20
1.25
1.30
1.35
1.40
1.44
1.49
1.53 1.57
1.62
2.8
1.26
1.31
1.37
1.42
1.47
1.52 1.56
1.61
1.65
1.70
3.0
1.32
1.38
1.43
1.49
1.54
1.59 1.64
1.69
1.73
1.78
3.2
1.38
1.44
1.50 1.55
1.61
1.66 1.71 1.76
1.81
1.86
3.4 1.43
1.50
1.56
1.62
1.67
1.73 1.78
1.83
1.88
1.93
3.6
1.49
1.55
1.62 1.68
1.74
1.80
1.85
1.90
1.96
2.01
3.8
1.54
1.61
1.68
1.74
1.80
1.86
1.92
1.97
2.03
2.08
4.0
1.60
1.67 1.74
1.80
1.86
1.93
1.98
2.04
2.10
2. 15
4.2
1.65
1.72 1.79
1.86
1.93
1.99
2.05
2. 11
2. 17
2.22
4.4 1.70
1.78
1.85
1.92
1.99
2.05
2. 12
2. 18
2. 24
2. 29
4.6
1.75 1.83
1.91 1.98
2.05
2. 11
2.18
2. 24
2.30
2.36
4.8
1.80 1.88
1.96
2.03
2.11
2.17
2. 24
2.31
2.37
2.43
5.0
1.85
1.94 2.01
2.09
2.16
2.23
2.30
2.37
2.43
2.50
5.2 1.90
1.99
2.07
2. 15
2. 22
2. 29
2.36
2.43
2.50
2. 56
5.4 1.95
2.04
2.12
2.20
2. 28
2.35
2. 42
2.49
2. 56
2.63
5.6 2.00
2.09
2.17
2.25
2.33
2. 41
2.48
2.56
2.63
2.69
5.8
2.05
2. 14
2.22
2. 31
2. 39
2.47
2. 54
2.62
2.69
2.76
6.0
2.09
2.19
2. 27
2.36
2.44
2.52
2.60
2.68
2.75
2.82
6.2
2. 14
2. 23
2.32
2.41
2.50
2,58
2.66
2.74 2.81
2.88
6.4
2. 18
2.28
2.37 2.46
2.55
2,63 2.72
2.79 2.87
2.95
6.6
2. 23
2.33
2. 42 2.52 2.60
2.69
2.77
2.85 2.93
3.01
6.8
2.27
2.38
2.47
2.57
2.66
2.74 2.83
2.91
2.99
3.07
7.0
2.32
2.42
2.52 2.62
2.71
2.80
2.88
2.97
3.05
3. 13
7.5
2. 43
2.54
2.64
2,74
2.84
2.93
3.02
3. 11
3. 19
3.27
8.0
2.53
2.65
2.76 2.86
2.96
3.06
3. 15
3. 24
3.33
3.42
8.5
2.64
2.76 2.87 2.98
3.08
3. 18
3.28
3.38
3.47
3.56
9.0
2.74
2.86 2.98 3.09
3.20
3. 31
3.41
3.51
3.60
3.70
9.5
3.83
2.84
3.64 3.74
2.97
3.53
3.09 3.21
3.43
3.32
478
HYDRAULIC TABLES
Table 38.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.055-Continued


♡
.0010
.0015 .0020 .0025 .0030 .0035 .0040 .0045
.0050
T
0.2
0.29
0.36
0.41
0.46
0.51
0.55
0.58
0.62
0.65
0.4
.46
.57
.66
.73
.80
.87
.93
.98
1.04
0.6
.61
.74
.86
.96
1.05
1. 14
1.22
1.29
1.36
0.8
.74
.90
1.04
1.16
1.28
1.38
1.47
1.56
1.65
1.0
85
1.05
1.21
1.35
1.48
1.60
1.71
1.81
1.91
1.2
.96
1. 18
1.36
1.53
1.67
1.81
1.93
2.05
2.16
1.4
1.07
1.31
1.51
1,69
1.85
2.00
2. 14
2. 27
2.39
1.6
1. 17
1.43
1.65
1.85
2.02
2.19
2.34
2.48
2. 61
1.8
1.26
1.55
1.79
2.00
2. 19
2.37
2.53
2.68
2.83
2.0
1.36
1.66
1.92
2. 14
2.35
2.54
2.71
2.88
3.03
2.2
1.45
1.77
2.04
2.29
2,50
2.70
2.89
3.07
3. 23
2.4
1.53
1.88
2.17
2.42
2.65
2.87
3.06
3. 25
3.42
2.6
1.62
1.98
2. 28
2.55
2.80
3.02
3. 23
3.43
3.61
2.8
1.70
2.08
2.40
2.68
2.94
3. 18
3. 39
3.60
3.80
3.0
1.78
2. 18
2.51
2.81
3.08
3.32
3. 55
3.77
3.97
3. 2
1.86
2.27
2.62
2.93
3. 21
3.47
3.71
3.94
4. 15
3.4
1.93
2.37
2.73
3.05
3.35
3.61
3.86
4. 10
4. 32
3.6
2. 01
2.46
2.84
3.17
3.48
3.75
4. 01
4. 26
4.49
3.8
2.08
2.55
2.94
3.29
3.60
3.89
4. 16
4. 41
4. 65
4.0
2. 15
2.64
3.04
3.40
3.73
4.03
4.31
4.57
4.81
4.2
2. 22
2.72
3.15
3. 52
3.85
4. 16
4. 45
4.72
4.97
4.4
2. 29
2.81
3.24
3.63
3.97
4.29
4.59
4.87
5. 13
4.6
2.36
2.89 3.34
3.74
4.09
4.42
4.73
5.01
5.28
4.8
2.43
2.98
3.44
3.84
4. 21
4.55
4.86
5.16
5.44
5.0
2.50
3.06
3.53
3.95
4.33
4.67
5.00
5.30
5.59
5.2
2.56
3. 14
3.63
4.05
4. 44
4.80
5. 13
5.44
5.73
5.4
2.63
3.22
3.72
4. 16
4.55
4.92
5.26
5. 58
5.88
5.6
2.69
3.30
3.81
4.26
4.67
5.04
5.39
5.72
6.02
5.8 2.76 3.38
3.90
4.36
4.78
5. 16
5.52
5.85
6.17
6.0
2.82 3.46
3.99
4.46
4.89
5. 28
5.64
5.98
6.31
6.2 2.88 3.53
4.08
4. 56
4.99
5.39
5.77
6.12
6.45
6.4
2.95
3.61
4. 17
4.66
5. 10
5.51
5.89
6. 25
6. 59
6.6
3.01
3.68
4. 25
4.75
5. 21
5.62
6.01
6.38
6.72
6.8
3.07
3.76
4.34
4.85
5. 31
5.74
6. 13
6. 51
6.86
7.0
3. 13
3.83
4.42
4.94
5.42
5.85
6. 25
6.63
6.99
7.5
3.27
4.01
4. 63
5. 18
5.67
6. 12
6.55
6.94
7.32
8.0
3.42
4.19
4.83
5.40
5.92
6.39
6.84
7.25
7.64
8.5 3.56
4.36
5.03
5.63
6.16
6.66
7.12
7.55
7.96
9.0 3.70
4.53
5. 23
5.85
6.40
6.92
7.39
7.84
8.27
9.5
8.57
3.83
8. 13
4.69
7.66
5.42
7.17
6.06
6.64
HYDRAULIC TABLES
479
Table 38.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.055-
.055-Continued

s
.0055
.0060 .0065 .0070 .0075 .0080 .0085 .0090
.0095
.0100
T
0.2
0.69
0.72
0.74
0.77
0.80
0.83
0.85
0.88
0.90
0.92
0.4
1.09
1. 14
1. 18
1.23 1.27
1.31
1.35
1. 39
1. 43
1.47
0.6
1.43
1.49
1.55
1.61
1.66
1.72
1.77
1.82
1.87
1.92
0.8
1.73
1.80
1.88
1.95
2.02
2.08
2. 15
2.21
2.27
2.33
1.0
2.00
2.09
2.18
2.26
2.34
2. 42
2.49
2. 56
2.63
2.70
1.2
2. 26
2.36
2.46
2.55
2.64
2.73
2.81
2.89
2.97 3.05
1.4
2.51
2.62
2.73 2.83
2.93
3.02
3. 12
3.21
3.30 3.38
1.6
2.74
2.86
2.98 3.09
3.20
3.31
3. 41
3.51
3.60 3.70
1.8
2.96
3.10
3.22
3.34
3.46
3.58
3.69
3.79
3.90
4.00
2.0
3. 18
3.32 3.46
3.59
3.71
3.84
3.95
4.07
4. 18
4. 29
2.2
3.39
3.54
3.68
3.82
3.96
4.09
4. 21
4.34
4.45
4. 57
2.4
3.59
3.75
3.90
4.05
4. 19
4.33
4. 47
4. 59
4. 72
4.84
2.6 3.79
3.96
4. 12
4. 27
4.42
4.57
4.71
4.85
4.98
5. 11
2.8
3.98
4. 16
4.33
4.49
4.65
4.80
4.95
5.09
5.23
5.37
3.0
4. 17
4. 35
4. 53
4.70
4.87
5.03
5. 18
5.33
5.48
5.62
3.2
4.35
4. 54
4.73
4.91
5.08
5.25
5. 41
5. 57
5.72
5.87
3.4
4.53
4.73
4.93
5. 11
5.29
5.46
5.63
5.80
5.95
6. 11
3.6
4.71
4.92
5. 12
5.31
5.50
5.68
5.85
6.02
6. 19
6. 35
3.8
4.88
5.10
5.30
5.50
5.70
5.88
6. 07
6.24
6. 41
6. 58
4.0
5.05
5.27
5.49
5.70 5.90
6.09
6. 28
6.46
6. 64
6.81
4.2
5. 22
5. 45
5.67
5.88
6.09
6.29
6.48
6.67
6.86
7.03
4.4
5.38
5. 62
5.85
6.07
6.28 6.49
6.69
6.88
7.07
7.25
4.6
5.54
5.79
6.02
6.25
6.47 6.68
6.89
7.09
7.28
7.47
4.8
5.70
5.96
6.20
6. 43
6.66
6.88
7.09
7.29
7.49
7.69
5.0
5.86
6. 12
6.37
6.61
6.84
7.07
7.28
7.49
7.70
7.90
5.2
6.01
6. 28
6.54
6.78
7.02 7.25
7.48 7.69
7.90
8.11
5.4
6. 17
6.44
6.70
6.96
7.20 7.44
7.67
7.89
8. 11
8.32
5.6
6.32
6.60
6.87
7. 13
7.38 7.62 7.86
8.08
8.30
8.52
5.8
6.47
6.76
7.03
7.30
7.55 7.80 8.04
8.27
8.50
8.72
6.0
6.62
6.91
7.19
7.46
7.73
7.98 8.22
8.46
8.70
8.92
6.2
6.76
7.06 7.35
7.63 7.90
8.16
8.41
8. 65
8.89
9.12
6.4
6.91
7.21 7.51 7.79 8.07
8.33
8.59
8.84
9.08
9.31
6.6 7.05
7.36 7.66
7.95
8.23
8.50
8.76
9.02
9.27
9.51
6.8
7.19
7.51 7.82
8. 11
8.40
8.67
8.94
9.20
9. 45
9.70
7.0
7.33
7.66 7.97
8.27
8.56
8.84
9.12 9.38
9.64
9.89
7.5 7.68
8.0 ·8.01
8.5 8.35
9.0 8.67
8.02 8.35 8.66 8.97
8.37 8.71 9.04 9.36 9.67 9.96 10.25 10.53
8.72 9.07 9.41
9.75
9.06 9.42 9.78 10. 12
9.26 9.54 9.82 10.09
10.35
10.81
10.06 10.37 10.68 10.97
10.46 10.78
11.25
11.09 11.39
11.69
9.5
12. 12
8.99
11.50 11.81
9.39 9.77 10. 14
11.17
10.50 10.84
480
HYDRAULIC TABLES
Table 38.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.055—Continued

$
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
0.2
0.92
1.31
1.60
1.85
2.07
2. 26
2. 44
2. 61
2.77
2.92
0.4
1.47
2.07
2. 54
2.93
3. 28
3.59
3.88
4. 15
4. 40
4. 64
0.6
1.92
2.72
3.33
3.84
4.30
4.71
5.09
5.44
5.77
6.08
0.8
2.33 3.29
4.03
4.66
5.21
5.70
6. 16
6.59
6.99
7.36
1.0
2.70
3.82
4.68
5.40
6.04
6. 62
7. 15
7.64
8.11
8.54
1.2
3.05
4.31
5.28 6.10
6.82
7.47
8.07
8.63
9.15
9.65
1.4
3.38
4.78
5.86
6.76
7.56
8.28
8.95
9.56
10. 14
10.69
1.6
3.70
5. 23
6.40
7.39
8.26
9.05
9.78
10.45
11.09
11.69
1.8
4.00
5. 65
6.92
8.00
8.94
9.79
10.58
11.31
11.99
12.64
2.0
4. 29
6.07
7.43
8.58
9.59
10. 51
11.35
12. 13
12.87
13.56
2.2
4.57
6.46
7.92
9. 14
10.22
11. 19
12.09
12.93
13. 71
14. 45
2.4
4.84
6.85
8.39
9.69
10.83
11.86
12.81
13.70
14.53
15.32
2.6
5.11
7.22
8.85
10. 22
11.42
12. 51
13. 52
14.45
15. 33
16. 15
2.8
5.37
7.59
9.30
10.73
12.00
13. 15
14. 20
15. 18
16. 10
16.97
3.0
5. 62
7.95
9.73
11. 24
12.57
13.77
14.87
15.90
16.86
17.77
3.2
5.87
8.30
10. 16
11.73
13. 12
14.37
15.52
16.59
17.60
18. 55
3.4
6. 11
8.64
10.58
12.22
13.66
14.96
16. 16
17.28
18.33
19.32
3.6
6.35
8.98
10.99
12.69
14. 19
15. 55
16.79
17.95
19.04
20.07
3.8
6.58
9.30
11.40
13. 16
14.71
16. 12
17.41
18.61
19.74
20.81
4.0
6.81
9.63 11.79
13.62
15.22
16.68
18.01
19. 26
20.42
21.53
4.2
7.03
9.95 12.18
14.07
15.73
17.23
18.61
19.89
21. 10
22. 24
4.4 7.25 10.26 12.57
14.51
16. 22
17.77
19. 19
20.52
21.76
22.94
4.6 7.47
10.57
12.94
14.95
16. 71
18.31
19.77
21. 14
22.42
23.63
4.8
7.69
10.87 13. 32
15.38
17.19
18. 83
20.34
21.75
23.06
24.31
5.0
7.90
11. 17 13.68
15.80
17.67
19.35
20.90 | 22.35
23.70
24.98
5.2
8.11
11.47 14.05
16.22
18. 13
19.86
21.46 22.94
24. 33
25.64
5.4 8.32
11.76
14.40
16. 63
18.60
20.37 22.00
23.52
24.95
26. 30
5.6
8.52 12.05
14.76
17.04
19.05 20.87 22.54
24. 10
25.56
26. 94
5.8 8.72
12.33
15. 11
17. 44
19.50
21.36
23.08
24.67
26. 17
27.58
6.0 8.92
12. 62
15.45
17.84
19.95 21.85
23.60
25. 23
26.76
28.21
6.2
9.12
12.90
15.79
18. 24
20.39 22.34
24. 12
25.79
27.36
28.83
6.4
9.31
13. 17
16. 13
18.63
20.83 22.81
24.64
26. 34
27.94
29.45
6.6
9.51
13. 44
16.47
19.01
21.26
23.29
25. 15
26.89
28.52
30.06
6.8
9.70
13. 71
16.80
19.40 21.68
23.75
25.66
27.43
29.09
30.67
7.0 9.89
13.98
17.12 19.77
22.11
24.22
26. 16
27.96
29.66
31.26
7.5
10.35
14.64
17.93 20.70
23. 15
25.36
27.39
29.28
31.06
32.74
8.0
10. 81
15. 28 18.72
21.61
24. 17
26.47
28.59 30.57
32.42
34. 18
8.5
11. 25
9.0
11.69
15.91 19.49
16.53 20.25 23.38
22.51 25. 16
27.56
29.77
31.83
33.76
35.59
26. 14
28.63
30.93
33.06
35.07
36.97
9.5
38.32
12. 12
36.36
17. 14
34.28
20.99
29.69 32.06
24. 24
27.10
HYDRAULIC TABLES
481
T
Table 38.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
∞
N
n
-.055-Continued



.00015.00020.00025.00030.00035.00040.00045.00050
.00005 .00010.00015
0030
00040
045
37
PIRRI 49202 27232 32RØR AMA** ***88 SE*** 99599 2
10
0.89
1. 25
1.54 1.77
1.98
2. 17 2.35
2.51
2.66
2.80
11
.94
1.34
1.64
1.89
2. 11
2.31
2.50
2. 67
2.83
2.99
12
1.00
1.42
1.73
2.00
2. 24
2.45
2.65
2.83
3.00
3. 17
13
1.06
1.49
1.83
2. 11
2.36
2.59
2.79
2.99
3. 17
3.34
14
1.11
1.57
1.92
2.22
2.48
2.72
2.94
3. 14
3.33
3. 51
15
1.16
1.64
2.01
2.32
2.60
2.85
3.07
3.29
3.49
3.67
16
1. 21
1. 72
2.10
2.43
2.71
2.97
3. 21
3.43
3. 64
3.84
17
1.26
1.79
2. 19
2.53 2.82
3.09
3.34
3.57
3.79
3.99
18
1.31
1.86
2.27
2.62
2.93
3. 21
3.47
3.71
3.94
4. 15
19
1.36
1.92
2.36
2.72
3.04
3.33
3.60
3.85
4.08
4.30
20
1. 41
1.99
2. 44
2.82
3. 15
3.45
3.72
3.98
4. 22
4.45
21
1.45
2.06
2.52
2.91
3.25
3.56
3.85
4. 11
4.36
4.60
1.50
2. 12
2.60
3.00
3.35 3.67
3.97
4. 24
4.50
4.74
1.55
2. 19
2.68 3.09
3.45
3.78
4.09
4.37
4.64
4.89
24
1.59
2.25
2.75 3.18
3. 55
3.89
4.21
4.50
4.77
5.03
25 1.63
2.31
2.83
3.27
3.65
4.00
4.32 4.62
4.90
5. 17
26 1.68
2.37
2.90
3.35
3.75
4.11
4.44
4.74
5. 03
5.30
27 1.72
2. 43
2.98
3. 44
3.84
4. 21
4.55
4.86
5. 16
5. 44
28
1.76
2.49
3.05
3.52
3.94
4.32
4.66
4.98
5. 28
5.57
29
1.80
2.55
3. 12
3.61
4.03
4.42
4.77
5. 10
5. 41
5.70
30
1.84
2.61
3. 19
3.69
4. 12
4.52
4.88
5. 22
5. 53
5.83
31
1.89
2. 67
3.27
3.77
4. 22
4.62
4.99
5.33
5.66
5.96
32 1.93
2.72
3.34 3.85
4. 31
4.72
5.09
5.45
5.78
6.09
33
1.97
2.78
3.40 3.93
4.40 4.81
5.20
5.56
5.90
6.22
34
2.01
2.84
3.47
4.01
4.48
4.91
5.30
5.67
6.02
6.34
35
2.04
2.89
3. 54
4.09
4. 57
5. 01
5. 41
5.78
6. 13
6.46
36
2.08
2.95
3.61
4. 17
4.66
5.10
5.51
5.89
6.25
6.59
2. 12
3.00
3.67
4. 24
4.74
5.20 5.61
6.00
6.36
6.71
38
2. 16
3.05
3.74
4.32
4.83
5.29
5.71 6.11
6.48
6.83
39
2.20
3. 11
3.81 4.39 4.91
5.38
5.81
6.21
6.59
6.95
40
2. 23
3.16
3.87 4.47 5.00 5.47
5.91
6.32 6.70
7.07
41
2.27
3. 21
3.93 4.54
5.08
5.56 6.01
6.43
6.81
7.18
44
42 2.31
43 2.34
2.38
3.26
4.00
4.62
5. 16
5.65
6.11
6. 53
6.93
7.30
3.32
4.06 4.69
5. 24
5.74
6.20
6.63
7.03
7.42
3.37 4.12
4.76
5.32
5.83
6.30
6.73
7.14
7.53
45 2.42
3.42
4. 19
4.83
5.40
5.92 6.39
6.84
7.25
7.64
46
2.45
3.47
4. 25
4.91
5.48
6.01 6.49
6.94 7.36
7.76
47
2.49
3. 52
4.31
4.98
5.56
6.09
6.58
7.04 7.46
7.87
48
2. 52
3.57
4.37
5.05
5.64
6. 18
6.68
7. 14
7.57
7.98
49
2. 56
3.62
4.43
5. 12
5.72
6. 27
6.77
7.24
7.67
8.09
50
2.59
3.67
4.49
5. 19
5.80
6.35
6.86
7.33
7.78
8.20
482
HYDRAULIC TABLES
Table 38.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
$
.00055
.00060
T
n=.055-Continued


.00065.00070.00075 | .00080.00085.00090.00095 .00100
28
PERRE 12732 22231 33262 A♫*** ----- *****
2.94
3.07
3.20
3.32
3. 43 3.55
3.66
3.76
3.87
3.97
11
3. 13
3.27
3. 41
3.54
3.66
3.78
3.90
4.01
4. 12
4. 23
12
3.32
3.47
3.61
3.75
3.88
4.01
4. 13
4. 25
4.36
4. 48
13
3.50
3.66
3.81
3.95
4.09
4. 23
4.36
4.48
4. 60
4.72
14
3.68
3.84
4.00
4. 15
4.30
4. 44
4.58
4.71
4.84
4.96
15
3.85
4.03
4. 19
4. 35
4.50
4. 65
4.79
4.93
5.06
5.20
16
4.02
4.20
4.37
4. 54
4.70
4.85
5.00
5.15
5.29
5. 43
4. 19
4.38
4. 55
4.73
4.89
5.05
5. 21
5.36
5.51
5.65
18
4.35
4.55
4.73
4.91
5.08
5. 25
5. 41
5. 57
5.72
5.87
4. 51
4.71
4.90
5.09
5.27
5. 44
5.61
5.77
5.93
6.08
20 4.67
4.88
5.08
5.27
5. 45
5. 63
5.80
5.97
6.14
6.30
4.82
5.04
5. 24
5. 44
5. 63
5.82
6.00
6. 17
6. 34
6. 50
4.97
5.20
5.41
5.61
5.81
6.00
6.18
6. 36
6.54
6.71
5.12
5.35
5.57
5.78
5.98
6. 18
6.37
6. 56
6.73
6.91
24
5.27
5. 51
5. 73
5.95
6. 16
6.36
6.55
6.74
6.93
7. 11
25
5.42
5.66
5.89
6.11
6.33
6.53
6.73
6.93
7.12
7.30
5.56
5.81
6.05
6.27
6.49
6.71
6.91 7.11
7.31
7.50
27 5.70
5.96
6.20
6. 43
6.66
6.88
7.09
7.29
7.49
7.69
5.84
6. 10
6.35
6.59
6.82
7.05
7.26
7.47 7.68
7.88
29
5.98
6. 25
6.50
6.75
6.98
7. 21
7.44
7.65
7.86
8.06
30 6.12
6.39
6.65
6.90
7.14
7.38
7.61
7.83 8.04
8.25
31
6.25
6.53 6.80
7.05
7.30 7.54
7.77
8.00 8.22
8.43
32
6.39
6.67 6.94
7.21
7.46 7.70
7.94
8.17
8.39
8.61
33
6. 52
6.81
7.09 7.35
7.61
7.86 8.10
8.34
8.57
8.79
34
6.65
6.95 7.23
7.50
7.77
8.02
8.27
8.51
8.74
8.97
35 6.78 7.08 7.37
7.65
7.92
8. 18
8.43
8.67
8.91
9.14
36
6.91 7.22 7.51
7.79
8.07
8.33
8.59 8.84
9.08
9.32
37
7.04
7.35 7.65
7.94
8. 22
8.49
8.75 9.00
9.25
9.49
38
7.16
7.48 7.79
8.08
8.36
8.64 8.90 9.16
9.41
9.66
7.29
7.61
7.92
8.22
8.51
8.79
9.06
9.32
9.58
9.83
40
7.41
7.74
8.06
8.36
8.65
8.94
9. 21
9.48
9.74
9.99
41
7.53
7.87
8. 19
8.50 8.80
9.09
9.37
9.64 9.90 10.16
42 7.66
8.00
8.32
8. 64
8.94 9.23
9.52
9.79 10.06
10.32
43
7.78
8. 12
8.45
44
7.90
8. 25
8.59
8.77 9.08 9.38
8.91 9.22 9.52
9.67
9.95 10.22
10.49
9.82
10.10❘ 10.38
10.65
45
8.02
8.37
8.71
46
8. 13
9.04 9.36
8.50 8.84 9.18 9.50
47
8.25 8.62
48
49
8.48
8.86 9.22
8.97 9.31 9.64
8.37 8.74 9.10 9.44 9.77
9.57 9.91
9.67
9.81
9.95 10.26
10.09 10.40
10.23 10.55
9.97 10.25 10.54
10.81
10.11
10.41 10.69
10.97
10.56 10.85
11.13
10.71 11.00
11. 28
10.85
11.15
11.44
50
11.60
8.60
11.00 11.30
8.98 9.35
9.70 10.04 10.37 10.69
HYDRAULIC TABLES
483
Table 38.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.055—Continued

.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
10
3.97
4.86
5.61
6.27
6.87
7.42
7.93 8.41
8.87
11
4. 23
5.18
5.98
6.68
7.32
7.91
8.45 8.96
9.45
12
4.48
5.48
6. 33
7.08
7.76
8.38
8.96
9.50
10.01
13
4.72
5.79
6.68
7.47
8.18
8.84
9.45
10.02
10.56
14
4.96
6.08
7.02
7.85
8.60
9.28
9.93
10.53
11.10
15
5.20
6.36
7.35
8.22
9.00
9.72 10.39
11.02
11.62
16
5. 43
6. 64
7.67
8.58
9.40
10.15
10.85
11.51
12. 13
17
5.65
6.92
7.99
8.93
9.78
10.57
11.30
11.98
12.63
18
5.87
7.19
8.30
9.28
10.16
10.98
11.74
12.45
13. 12
19
6.08
7.45
8.60
9.62
10.54
11.38
12.17 12.91
13.60
27
35
37
40
41
45
46
2**** ***RR SH88* ---== ====* ****
20
6.30
7.71
8.90
9.95 10.90
11.78
12.59
13.35
14.08
21
6. 50
7.96
9.20
10.28
11.26
12. 17
13.01
13.80
14.54
22
6.71
8.22
9.49 10.61
11.62
12.55
13.42
14.23
15.00
24
23 6.91
7.11
8.46 9.77
10.93
11.97
12.93
13.82
14. 66
15.45
8.71
10.05
11.24
12.31
13.30
14.22
15.08
15.90
25 7.30 8.95
10.33
11.55
12.65
13.67
14.61
15.50
16.33
26
7.50 9.18 10.60
11.86
12.99
14.03
15.00
15.91
16.77
7.69
9.42
10.87
12.16
13.32 14.39
15.38
16. 31
17.19
28
7.88
9.65
11. 14
12.46
13.65 14.74
15.76
16.71
17.62
29
8.06 9.88
11.41
12.75 13.97
15.09
16. 13
17.11
18.03
30
8.25 10.10
11.67
13.04 14.29
15.43 16.50
17.50
18.45
31 8.43 10.33
11.92
13.33
14.60
15.77
16.86
17.89 18.85
32
8.61 10.55
12. 18
13.62
14.92
16. 11
17.22
18.27
19.26
33 8.79
10.77
12.43
13.90
15.23
16.44
17.58
18. 65
19.66
34 8.97
10.98
12.68
14. 18
15.53
16.78
17.93
19.02
20.05
9. 14
11.20
12.93
14.45
15.83
17.10
18. 28
19.39
20.44
36
9.32
11.41
13. 17
14.73 16.13
17.43
18.63
19.76
20.83
9.49
11.62
13.42
15.00
16.43
17.75
18.97
20.12
21.21
38 9.66 11.83
13.66
15.27
16.73
18.07
19.31 20.49
21.59
39 9.83 12.03
13.90
15.54 17.02
18.38
19.65
20.84
21.97
9.99
12.24
14. 13
15.80
17.31
18.70
19.99
21.20
22.35
10. 16
12. 44
14.37
16.06
17.60 19.01
20.32
21.55
22.72
42
10.32
12.64
14.60
16.32 17.88
19.31
20.65
21.90
23.08
43 10.49 12.84 14.83
16.58 18.16
19.62
20.97
22. 25
23.45
44 10.65 13.04
15.06
16.84 18.44 19.92
21.30
22.59
23.81
10.81
10.97
13. 24
13.43
15.29 17.09
47 11.13 13.63
48 11.28 13.82
49 11.44 14.01
18.72
15.51 17.34 19.00 20.52
15.74 17.59 19.27 20.82
15.96
16. 18 18.09 19.82
20.22
21.62
22.93
24.17
21.94 23.27
24.53
22.25
23.60
24.88
17.84 19.55 21.11
22.57
23.94
25.23
21.40
22.88
24. 27
25.58
50
25.93
11.60 14.20
24.60
16.40 18.33 20.08
23.19
21.69
484
HYDRAULIC TABLES
Table 38.-Velocity of water, v, in feet per second, based on
♡
Manning's formula v=
1.486
n
2/31/2
n=.055—Continued

.0055
.0060
.0065
.0070 .0075
.0080 .0085
.0090
.0095
.0100
T
26
27
30
31
35
PERRE F2E02 2222* *2*22 8788* 8808
10
9.30
9.71
10. 11
10.49
10.86
11. 22
11.56
11.90
12. 22
12. 54
11
9.91
10.35
10.77
11. 18
11.57
11.95
12.32
12.68
13.03
13. 36
12
10.50
10.97
11. 42
11.85
12. 26
12.67
13.06
13. 43
13.80
14. 16
13
11.08
11.57
12. 04
12.50
12.94
13.36
13. 77
14. 17
14. 56
14.94
14
11.64
12. 16 | 12.65
13. 13
13.59
14.04
14. 47
14.89
15.30
15.69
15
12. 19
12.73
13.25
13.75
14. 23
14.70
15. 15
15. 59
16.02
16. 43
16
12.72
13.29
13.83
14. 35
14.86
15. 34
15.82
16. 28
16.72
17. 16
17
13. 25
13.84
14. 40
14.95
15.47
15.98
16. 47
16.95
17.41
17.86
18
13.76
14. 37
14.96
15.53
16. 07
16.60
17. 11
17.60
18.09
18.56
19
14. 27
14.90
15.51
16. 10
16.66
17.21
17.74
18. 25
18.75
19.24
20
14.76
15.42
16.05
16.66
17. 24
17.81
18.35
18.89
19.40
19.91
21
15.25
15.93
16.58
17. 21
17.81
18.39
18.96
19.51 20.04
20.57
15.73
16. 43
17.10
17.75
18.37
18.97 19.56
20.12❘ 20.68
21. 21
23
16. 21
16.93
17.62
18. 28
18.92
19.54
20.15
20.73 21.30
21.85
24
16.67
17. 41
18. 12
18.81
19.47
20.11
20.73
21.33
21.91
22.48
25
17. 13
17.89
18.62
19. 33
20.01 20.66 21.30 21.91
22.52
23. 10
17.59
18.37
19. 12
19.84
20.54 21.21 21.86
22.50
23. 11
23. 71
18.03
18.84
19.60
20.34
21.06
21.75 22.42
23.07
23.70
24.32
28
18.48
19.30 20.09
20.84
21.58
22. 28
22.97
23. 63
24. 28
24.91
29
18.91
19.75 20.56
21.34
22.09
22.81
23.51
24. 19
24.86
25.50
19.35
20. 21
21.03
21.82
22.59 23.33
24.05
24.75
25.43
26.09
19.77
20.65
21.50 22.31 23.09
23.85
24. 58
25. 29
25.99
26.66
32
20. 20
21.09
21.96
22.78
23.58
24.36
25. 11
25.84 26.54 27.23
33
20.61
21.53
22. 41
23. 26
24. 07
24.86
25.63
26.37 27.09
27.80
34 21.03
21.96
22.86
23.72
24.56
25.36
26. 14
26.90 27.64
28.36
21.44 22.39 23.31
24. 19
25.04
25.86
26.65
27.43
28.18
28.91
36
21.85
22.82
23.75
24. 65
25.51
26. 35
27.16
27.95
28.71
29.46
37 22.25
23. 24
24. 19
25. 10
25.98
26.83
27.66
28.46
29. 24
30.00
38
22.65
23.65
24.62
25.55
26.45
27.31
28. 15
28.97
29.77
30.54
39 23.04 24.07
25.05 | 26.00
26.91
27.79
28.65
29.48
30.29
31.07
40
23.44 24.48
25.48 26. 44
27.37
28. 26
29.13
29.98
30.80
31.60
41
23.82
24.88
25.90
26.88
27.82
28.73
29.62 30.48
31. 31
32. 13
42
24. 21
25. 29
26.32
27.31
28. 27
29.20
30.10
30.97 31.82
32.65
43
24.59
25.69
26. 74
27.74
28.72
29.66
30.57 31.46
32.32
33. 16
44 24.97
26.08
27.15
28. 17
29. 16
30.12
31.05 31.95
32.82
33.67
45
25.35
26.48
27.56 28.60 29.60
30.57
46
25.72
26. 87
27.97 29.02 30.04
31.02
31.51 32.43
31.98 32.91 33.81
33.32
34. 18
34.69
47 26.10
27.26
28.37
29.44 30.47
31.47
32.44
33.38
34.30
35. 19
48
49
26.46 27.64
26.83 28.02 29.17 30.27 31.33
28.77
29.86 30.90
31.92
32.90
33.85 34.78
35.68
32.36
33.36
34.32
35.26
36.18
50 27.19 28.40 29.56 30.68 31.76
36.67
32.80
34.79 35.74
33.81
HYDRAULIC TABLES
485
Table 38.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.055—Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
T
10
12.54
17.74
21.72
25.08 28.04
30.72
33.18
35. 47
37.62
39.66
11
13.36
18.90
23. 15
26.73 29.88
32.73
35.36
37.80
40.09
42.26
12
14. 16
20.03
24. 53
28.32
31.67
34.69
37.47 | 40.05
42. 48
44.78
13
14.94
21.13
25.87
29.88 33.40
36.59
39.52 42.25
44.81
47.24
14
15.69
22.20
27.18 31.39 35.09
38.44
41.52
44.39
47.08
49.63
15
16.43
23.24
28.46
32.87
36.75
40.25
43.48
46.48 49.30
51.97
16
17.16
24. 26
29.71
34. 31
38.36
42.02
45.39
48.52
51.47
54. 25
17
17.86
25.26
30.94
35.73
39.94
43.76
47.26
50.52 53.59
56.49
18
18.56
26. 24
32. 14
32.14
37.11
41.49
45.45
49.10 52.49
55.67
58.68
19
19.24
27.21
33.32
38.48
43.02
47. 12
50.90 54.41
57.71
60.84
2**** ***AR AMXX
20 19. 91
28.15
34.48
39.81
44.51
48.76
52.67
56.31
59.72
62.95
21
20.57
29.08
35.62 41. 13
45.99 50.37
54.41
58.17 61.70
65.03
22
21. 21
30.00 36.74
42.43
47.43 51.96
56. 12
60.00 63.64
67.08
23
21.85
30.90 37.85 43.70
48.86
53.52
57.81
61.80 65.55
69.10
24
22.48
31.79 38.94
44.96
50.27
55.06
59.48
63.58
67.44
71.09
25
23.10
32.67 40.01 46.20
51.65
56.58
61. 12
65.34
69.30
73.05
26
23.71
33.53
41.07
47.42 53.02
58.08
62.74
67.07
71. 14
74.98
27
24.32
34.39
42. 12
48.63 54.37
59.56
64.34
68.78
72.95
76.90
28
24.91
35.23
43. 15
49.83
55.71
61.02
65.91 70.46 74.74
78.78
29
25.50
36.07
44. 17
51.01
57.03
62.47
67.47 | 72.13 | 76.51
80.65
30
26.09
36.89
45. 18
52.17
58.33
63.90
69.02
73.78 | 78.26
82.49
31
26.66
37.71
46. 18
53.32
59.62
65. 31
70.54
75.41 79.99
84.31
32
27.23
38.51
47. 17
54.47
60.89
66.71
72.05
77.03 81.70
86.12
33 27.80
39.31
48. 15
55.59 62.16
68.09
73.54 78.62
83.39
87.90
34
28.36
40.10
49.11
56.71
63.41 69.46
75.02❘ 80.20
85.07
89.67
35
28.91
40.88 50.07 57.82 64.64
70.81
76.49 81.77 86.73
91.42
36 29.46
41.66 51.02 58.91
37 30.00 42.43 51.96
38 30.54 43.19 52.89
65.87
72.16
77.94
83.32 | 88.37
93.15
60.00 67.08
73.49
79.37 84.85 90.00
94.87
61.08
68.29
74.80
80.80 86.38
91.61
96.57
39
31.07
43.94 53.82
62. 14
69.48
76. 11
82.21 87.88 93.22
98.26
40
31.60
44.69 54.73
63.20
70.66
41
32. 13
45.43
55.64
64. 25
77.41
71.83 78.69 85.00
83.61 89.38 94.80
99.93
90.86 96.38
101.59
42
32. 65
46. 17
56.54
65.29
73.00
79.96
86.37
92.34 | 97.94
103.23
43
33.16
46.90
57.44 66.32
74. 15
81.23
87.74
93.80 99.48
104.87
44
33.67
47.62 58.32 67.35
75.30
82.48
89.09
95. 24 101.02
106.49
45
34. 18
48.34 59.21 68.36 76.43
83.73
90.44 | 96.68
102.55
108.09
46
34.69
49.05 60.08
47
35. 19
48
35.68
49
36. 18
69.37 77.56
49.76 60.95 70.37
50.47 61.81 71.37 79.79
51. 16 62.66 72.36 80.90
84.96
91.77 98. 11
104.06
109.69
78.68
86. 19
93. 10
99.53 105.56
111. 27
87.41
94.41100.93 107.05
112.85
88.62
95.72 102.33 108.54
114. 41
50
115.96
36.67
51.86 63.51 73.34 82.00 89.82 97.02 103.72 110.01
486
HYDRAULIC TABLES
Table 39.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.060

.00005
.00010 | .00015 .00020.00025.00030.00035 .00040.00045.00050
да
0.06
0.08 0.10
0.12
0.13 0.15 0.16
0.17 0.18
0.19
.10
.13
.16
. 19
.21
.23
.25
. 27
.29
.30
.12
18
•
.22
.25
.28
.31
.33
.35
.37
.39
.15
.21
.26
.30
.34
.37
.40
.43
.45
.48
1.0
.18
25
•
.30
.35
39
.43
.46
.50
.53
55
1.2
.20
.28
•
.34
.40
.44
.48
.52
.56
.59
1.4
.63
.22
.31
.38
.44
49
•
.54
.58
.62
.66
1.6
.69
.24
.34
.41
.48
.54
.59
.63
.68
.72
1.8
.26
.76
.37
.45
.52
.58
.63
.69
.73
.78
.82
2.0
.28
.39
.48
.56
.62
.68
.74
.79
.83
2.2
.30
.42
.88
.51
.59
.66
.73
.78
.84
.89
2.4
.94
.31
.44
.54
.63
.70
.77
.83
.89
.94
.99
2.6
.33
.47
.57
.66
.74
2.8
.35
.49
.81 .88
.94
.99
1.05
.60
.70
.78
.85
.92
.98
1.04
1. 10
3.0
.36
.52
.63
.73
.81
.89
.96
1.03
1.09
1. 15
3.2
.38
.54
.66
.76
.85
.93 1.01
1.08
1. 14
1.20
3.4
.40
.56
.69
.79
.89
.97
1.05
1. 12
1. 19
1.25
3.6
41
.58
•
•
.71
.82
.92
1.01
1.09
1. 16
1. 23
1.30
3.8
43
.60
.74
.85
.95
1.04
1. 13
1. 21
1.28
1.35
4.0
.44
.62
.76
.88
99
•
1.08
1.17
1.25
1.32
1.40
4.2
.46
64
·
.79
.91
1.02
1. 12
1. 21
1.29
1.37
1.44
4.4
.47
.67
.81
.94
1.05
1.15
1.24
1.33
1.41
4.6
1.49
.48
.69
.84
.97
1.08
1. 19
1. 28
1.37
1.45
4.8
1.53
.50
.70
.86
1.00
1. 11
1. 22
1.32
1. 41
1.49
1.58
5.0
.51
.72
.89
1.02
1.15
1.25
1.35
1.45
1. 54
5.2
1. 62
.53
.74
.91
1.05
1. 18
1.29
1.39
1.49
1.58
5.4
1.66
.54
.76
.93
1.08
1. 21
1. 32
1.43
1. 52
1.62
5.6
1.70
.55
.78
.96
1. 10
1. 23
1.35
1.46
1.56
5.8
.57
1.66
.80
1.75
.98
1. 13
1.26
1.38
1.50
1.60
1.70
1.79
6.0
.58
.82
1.00
1. 16
1.29
1.42
1.53
1.64
1.73
6.2
1.83
.59
84 1.02
•
1.18
1.32
1.45
1. 56
1.67
1.77
1.87
6.4
.60
.85 1.05
1. 21
1.35
1.48
1.60
1.71 1.81
1.91
6.6
.62
.87
1.07
1. 23
1.38
1.51 1.63 1.74 1.85
6.8
1.95
.63
.89
1.09
1.26
1.41
1.54
1.66 1.78
1.89
1.99
7.0
.64
.91
1. 11
1.28
1.43
1.57
1.70
1.81
1.92
7.5
2.03
.67
.95
1. 16
1.34
1.50
1.64
1.78
1.90
2.01
8.0
2. 12
.70
.99
1. 21
1.40
1.57
1.72
1.85
1.98
2.10
8.5
2. 22
.73
1.03
1.26
1.46
1. 63
1.79
1.93
2.06
2. 19
9.0
2.31
.76
1.07
1.31
1.52
1.69
1.86
2.00
2. 14
2.27
2.40
9.5
2.48
.79
2.36
1. 11
2. 22
1.36
2.08
1.57
1.92
1.76
HYDRAULIC TABLES
487
Table 39.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
.00055
.00060
n=.060—Continued



0070
.00065.00070.00075.00080 .00085.00090.00095 .00100
0.2
0.20
0.21
0.22 0.22 0.23
0.24
0.25
0.25 0.26 0.27
0.4
.32
.33
.34 .36
.37 .38
.39
.40 .41
.43
0.6
.41
.43
.45
.47
.48
.50
.51
.53
.54
.56
•
0.8
.50
.52
.54
.56
.58
.60
.62
.64
.66
.67
1.0
.58
.61
.63
.66
.68
.70
.72
.74
.77
.78
1.2
.66
.69
.71
.74
.77
.79
.82
.84
.86
.88
1.4
.73
.76
.79
.82
.85
.88
.90
.93
.96
.98
1.6
.79
.83
.86
.90
.93
.96
.99
1.02
1.04
1.07
1.8
.86
.90
.93
.97
1.00
1.04
1.07
1.10
1. 13
1.16
2.0
.92
.96
1.00
1.04
1.08
1.11
1.15
1.18
1.21
1.24
2.2 .98
1.03
1.07
1.11
1.15
1.18
1.22
1.26
1.29
1.32
2.4
1.04
1.09
1.13
1. 17
1.22 1.26
1.29
1.33
1.37
1.40
2.6
1.10
1.15
1. 19
1.24
1.28
1.32 1.37
1.40
1.44
1.48
2.8
1.15
1.21
1.25
1.30
1.35 1.39
1.43
1.48
1.52
1.56
3.0
1.21
1.26
1.31
1.36
1.41
1.46
1.50
1.55
1.59
1.63
3.2
3.4
1.26 1.32 1.37
1.31 1.37 1.43 1.48
3.6 1.36 1.42
1.42
1.47 1.52
1.57
1.61
1.66
1.70
1.53
1.58
1.63 1.68
1.73
1.77
1.48
1.54
1.59
1.65
1.70 1.75
1.79
1.84
3.8
1.41
1.48 1.54
1.60
1.65
1.71
1.76
1.81
1.86
1.91
4.0
1.46
1.53 1.59
1.65
1.71
1.77
1.82 1.87
1.92
1.97
4.2
1.51
1.58
1.64
1.71 1.77
1.82 1.88 1.93
1.99
2.04
4. 4
1.56
1.63
1.70 1.76 1.82
1.88 1.94
2.00
2.05
2.10
4.6
1.61
1.68
1.75
1.81 1.88
1.94
2.00
2.06
2. 11
2.17
4.8
1.65 1.73
1.80
1.86
1.93
1.99
2.05
2.11
2.17
2. 23
5.0
1.70
1.77
1.85
1.92
1.98
2.05
2.11
2.17
2. 23
2.29
5.2 1.74
1.82
1.90
1.97
2.04
2.10
2.17
2.23
2.29
2.35
5.4
1.79 1.87
1.94
2.02
2.09
2.16
2.22
2.29
2.35
2.41
5.6 1.83
1.91 1.99
2.07
2. 14
2. 21
2. 28
2.34
2. 41
2.47
5.8 1.87
1.96
2.04
2. 12
2.19
2. 26
2.33
2.40
2.46
2.53
6.0
1.92
2.00
2.08
2.16
2. 24
2. 31
2.38
2.45
2.52
2.59
6.2 1.96
2.05
2.13
2. 21
2.29
2.36
2.44
2. 51
2.58
2.64
6.4
2.00
2.09
2.18
2. 26
2.34
2.41
2.49
2.56
2.63
2.70
6.6
2.04 2.13
2.22
2. 31
2.39
2.46
2.54
2.61
2.69
2.76
6.8
2.08
2.18
2. 27
2.35
2. 43
2.51
2.59
2.67
2.74
2.81
7.0
2. 13
2.22
2.31
2.40
2. 48
2.56
2.64
2.72 2.79
2.87
7.5
2.23
2.32
2. 42
2.51
2.60
2.68
2.77
2.85
2.92
3.00
8.0
2.32
2.43
2.53
2.62
2. 71
2.80 2.89
2.97
3.05
3. 13
8.5
2.42
2.53
2.63
2.73
2.82
2.92
3.01 3.09
3. 18
3.26
9.0
2. 51
2.62
2. 73
2.84
2.93
3.03
3.12 3.21
3.30
3.39
9.5
3. 51
2. 61
3.42
2.72
3.33
2.83
3. 24
2.94
3. 14
3.04
488
HYDRAULIC TABLES
Table 39.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
Co
n=.060-Continued
.0010
.0015
.0020
.0025 .0030 .0035 .0040
.0045
.0050
T
0.2
0.27
0.33
0.38
0.42 0.46
0.50
0.54
0.57
0.60
0.4
.43
.52
.60
.67
.74
.80
.85
.90
.95
0.6
.56
.68
.79
.88
.97
1.04
1.11
1. 18
1.25
0.8
.67
.83
.95
1.07
1.17
1.26
1.35
1.43
1.51
1.0
.78
.96
1.11
1.24
1.36
1.47
1.57
1.66
1.75
1.2
.88
1.08
1.25
1.40
1.53
1.65
1.77
1.88
1.98
1.4
.98
1.20
1.39
1.55
1.70
1.83
1.96
2.08
2.19
1.6
1.07
1.31
1. 52
1.69
1.86
2.00
2. 14
2. 27
2.40
1.8
1.16
1.42
1.64
1.83
2.01
2. 17
2.32
2.46
2.59
2.0
1. 24
1.52
1.76
1.97
2. 15
2.33
2.49
2.64
2.78
2.2
1.32
1.62
1.87
2.09
2.29
2.48
2.65
2.81
2.96
2.4
1.40
1.72
1.99
2.22
2.43
2.63
2.81
2.98
3. 14
2.6
1.48
1.81
2.09
2.34
2.56
2.77
2.96
3. 14
3.31
2.8
1.56
1.91
2.20
2.46
2.69
2.91
3.11
3.30
3.48
3.0
1.63
2.00
2.30
2.58
2.82
3.05
3.26
3.46
3. 64
3.2
1.70
2.08
2.41
2.69
2.95
3. 18
3.40
3. 61
3.80
3.4 1.77
2.17
2.50
2.80
3.07
3.31
3.54
3.76
3.96
3.6
1.84
2.25
2.60
2.91
3. 19
3. 44
3.68
3.90
4. 11
3.8
1.91
2.34
2.70
3.02
3.30
3.57
3.81
4.05
4.26
4.0
1.97
2.42
2.79
3. 12
3.42
3.69
3.95
4. 19
4.41
4.2
2.04
2.50
2.88
3. 22
3.53
3.81
4.08
4.32
4.56
4.4 2.10
2.58
2.97
3.33
3. 64
3.93
4.21
4.46
4.70
4. 6
2.17
2.65
3.06
3. 43
3.75
4.05
4.33
4.60
4.84
4.8
2.23
2.73
3. 15
3.52
3.86
4. 17
4. 46
4.73
4.98
5.0
2.29
2.80
3. 24
3.62
3.97
4. 28
4.58
4.86
5. 12
5.2
2.35
2.88
3.32
3.72
4.07
4.40
4.70
4.99
5. 26
5.4
2.41
2.95
3.41
3.81
4. 18
4,51
4.82
5.11
5.39
5. 6
2.47
3.02
3.49
3.91
4. 28
4. 62
4.94
5. 24
5.52
5.8
2.53
3.10
3.58
4.00
4.38
4.73
5.06
5.36
5.65
6.0
2.59
3.17
3.66
4.09
4.48
4.84
5. 17
5.49
5.78
6.2
2.64
3. 24
3.74
4. 18
4.58
4.94
5. 29
5.61
5.91
6.4
2.70
3.31
3.82
4.27
4.68
5.05
5.40
5.73
6.04
6.6
2.76
3.38
3.90
4.36
4.77
5. 16
5.51
5.85
6.16
6.8
2.81
3.44
3.98
4. 44
4.87
5.26
5.62
5.96
6. 29
7.0
2.87 3.51
4.05
4.53
4.96
5.36
5.73
6.08
6.41
7.5
3.00
3.68
4. 24
4.74
5.20
5. 61
6.00
6.37
6.71
8.0
3. 13
3.84
4. 43
4.95
5. 43
5.86
6. 27
6.65
7.01
8.5
3.26
4.00
4. 61
5. 16
5.65
6. 10
6.52
6.92
7.29
9.0
3.39
4. 15
4.79
5.36
5.87
6.34
6.78
7.19
7.58
9.5
7.86
3.51
7.45
4.30
7.03
4.97
6. 57
5.55
6.08
HYDRAULIC TABLES
489
Table 39.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/3g1/2
n
n=.060—Continued

Co
0055
•
•
0060 0065
.0070
0075 .0080
0085
•
.0090
.0095
.0100
T
0.2 0.63
0.66
0.68
0.71 0.73
0.76
0.78
0.80 0.83 0.85
0.4
1.00
1.04
1.08
1.12
1.16
1.20
1. 24
1.28
1.31
1.34
0.6
1.31
1.36
1.42
1.47
1.53
1.58
1.62
1.67
1.72
1.76
0.8
1.58
1.65
1.72
1.79
1.85
1.91
1.97
2.02
2.08
2. 13
1.0
1.84
1.92
2.00
2.07
2. 14
2.22
2.28
2.35
2.41
2.48
1.2
2.07
2.17
2.25
2. 34
2.42
2.50
2.58
2.65
2.73
2.80
1.4
2.30
2.40 2.50
2,59
2.68
2.77
2.86
2.94
3.02
3. 10
1.6
2.51
2.62
2.73
2.83
2.93
3.03
3. 12
3. 21
3.30
3.39
1.8
2.72
2.84
2.95
3.07
3.17
3.28
3.38
3.48
3.57
3.66
2.0
2.92
3.05
3. 17
3. 29
3.40
3.52
3.62
3.73
3.83
3.93
2.2
3. 11
3.25
3.38
3. 51
3.63
3.75
3.86
3.97
4.08
4. 19
2.4
3. 29
3.44
3.58
3.71
3.84
3.97
4.09
4. 21
4.33
4.44
2.6
3. 47
3.63
3.78
3.92
4.06
4. 19
4. 32
4. 44
4.56
4.68
2.8
3. 65
3.81
3.97
4. 12
4. 26
4.40
4. 54
4.67
4.80
4.92
3.0
3.82
3.99
4. 15
4.31
4.46
4.61
4.75
4.89
5.02
5.15
3.2
3.99
4. 17
4. 34
4.50
4. 66
4.81
4.96
5. 10
5. 24
5.38
3.4
4. 15
4.34
4. 51
4.69
4.85
5.01
5. 16
5. 31
5.46
5.60
3.6
4. 31
4. 51
4. 69
4.87
5.04
5.20
5. 36
5.52
5.67
5.82
3.8
4. 47
4.67
4.86
5.05
5. 22
5.39
5.56
5.72
5.88
6.03
4.0
4.63
4.83
5.03
5.22
5.40
5.58
5.75
5.92
6.08
6. 24
4. 2
4.78
4.99
5.20
5.39
5.58
5.77
5.94
6. 12
6.28
6. 45
4. 4
4.93
5.15
5.36
5.56
5.76
5.95
6.13
6. 31
6.48
6. 65
. 4. 6
5.08
5.31
5.52
5.73
5.93
6. 13
6. 32
6. 50
6.68
6.85
4.8
5.23
5.46
5.68
5.90
6. 10
6.30
6. 50
6. 69
6.87
7.05
5.0
5.37
5.61
5.84
6.06
6. 27
6.48
6.68
6.87
7.06
7.24
5.2
5. 51
5.76
5.99
6. 22
6. 44
6.65
6.85 7.05 7.25
7.43
5.4
5.65
5.90
6. 15
6.38
6.60 6.82
7.03 7.23
7.43
7.62
5.6
5.79
6.05
6.30
6.53
6.76
6.99
7.20 7.41
7.61
7.81
5.8
5.93
6. 19
6.45
6.69
6.92
7.15
7.37
7.58
7.79
8.00
6.0
6.06
6.33
6.59
6. 84
7.08
7.31
7.54
7.76
7.97
8. 18
6.2
6.20
6.47
6.74
6.99
7.24
7.48 7.71
7.93
8. 15
8.36
6.4
6.33
6.61
6.88 7.14
7.39
7.64
7.87
8.10
8.32
8. 54
6.6 6.46
6.75
7.03
7.29
7.55
7.79
8.03
8.27
8.49
8.71
6.8
6.59
6. 89
7.17
7. 44
7.70 7.95
8.20 8.43 8.66
8.89
7.0
6.72
7.02
7.31
7.58 7.85
8.11
8.36
8.60 8.83
9.06
7.5 7.04
7.35
7.65 7.94 8.22
8.49
8.75
9.00 9.25
9.49
8.0 7.35
7.67 7.99 8.29
8.58
8.86
9. 13
9.40
9.66
9.91
8.5
7.65
7.99 8.32 8.63
8.93
9.23
9.51
9.79 10.05
10.32
9.0
7.95
8.30 8.64 8.97
9.28
9.58
9.88
10.17
10.44
10. 72
9.5
8. 24
8.61
8.96 9.29
9.62
9.94
10. 24
10.54
10.83
11.11
563189°-44-32
490
HYDRAULIC TABLES
Table 39.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v— r2/31/2
N
n=.060-Continued

.01
.02
· 03
.04
05.06
.07
.08
.09
.10
0.2
0.85
1.20
1.47
1.69
1.89 2.07 2.24
2.40
2.54
2.68
0.4
1.34
1.90
2. 33
2.69
3.01
3.29
3.56
3.80
4.03
4. 25
0.6
1.76
2.49
3.05
3.52
3.94
4.32
4. 66
4.98
5.29
5.57
0.8
2. 13
3.02
3.70
4.27
4.77
5. 23
5.65
6.04
6.40
6.75
1.0
2.48
3.50
4.29
4.95
5. 54
6.07
6. 55
7.01
7.43
7.83
1.2
2.80
3.96
4.84
5.59
6. 25
6.85
7.40
7.91
8.39
8.84
1.4
3. 10
4.38
5.37
6. 20
6.93
7.59
8.20
8.77
9.30
9.80
1.6
3.39
4.79
5.87
6.78
7.58
8.30
8.96
9.58
10. 16
10.71
1.8
3.66
5. 18
6. 35
7.33
8. 19
8.98
9.70
10.37
10.99
11. 59
2.0
3.93
5. 56
6.81
7.86
8.79
9.63
10.40
11. 12
11.79
12.43
2.2
4. 19
5.92
7.26 8.38
9.37
10. 26
11.08
11.85
12.57
13. 25
2.4
4. 44
6. 28
7.69 8.88
.9.93
10.87
11.75
12. 56
13. 32
14.04
2.6
4. 68
6.62
8. 11
9.37
10.47
11. 47
12.39
13. 25
14.05
14.81
2.8
4.92
6.96
8.52
9.84
11.00
12.05
13.02
13.92
14.76
15. 56
3.0
5. 15
7.29
8.92
10.30
11.52
12. 62
13.63
14. 57
15.46
16. 29
3.2
5.38
7.61
9.32
10.76
12.03
13. 17
14. 23
15. 21
16. 13
17.01
3.4
5.60
7.92
9.70
11.20
12.52
13.72
14.82
15. 84
16.80
17.71
3.6 5.82
8.23
10.08
11. 63
13.01
14. 25
15. 39
16.45
17.45
18.40
3.8
6.03
8.53
10.45
12.06
13. 49
14.77
15.96
17.06
18.09
19.07
4.0
6.24
8.83
10.81
12. 48
13.95
15. 29
16. 51
17.65
18.72
19.74
4.2
6. 45
9. 12
11.17
12. 89
14. 42
15.79
17.06
18. 24
19. 34
20.39
4.4
6.65
9.40
11.52
13.30
14.87
16. 29
17.59
18. 81
19.95
21.03
4.6
6.85
9.69
11.86
13.70
15. 32
16. 78
18. 12
19.38
20.55
21.66
4.8
7.05
9.97
12. 21
14.09
15.76
17.26
18.65
19.93
21. 14
22.29
5.0
7.24
10. 24
12. 54
14.48
16. 19
17.74
19. 16
20.48
21.73
22.90
5.2
7.43
.10.51
12.88
14.87
16.62
18. 21
19.67
21.03
22.30
23.51
5.4
7.62
10.78
13.20
15. 25
17.05
18.67
20. 17
21.56
22.87
24.11
5.6 7.81 11.05
13. 53
15. 62
17.46
19. 13
20.66
22.09
23.43
24.70
5.8
8.00
11.31
13.85
15.99
17.88
19.58
21.15
22. 61
23.99
25.28
6.0
8. 18
11.57
14. 16
16.36
18. 29
20.03
21. 64
23.13
24.53
25.86
6.2
8.36
11.82
14.48
16. 72
18.69
20.47
22.11
23. 64
25.08
26.43
6.4
8. 54
12.07
14.79
17.07
19.09 20.91
22.59
24. 15
25.61
27.00
6.6
8.71 12.32
6.8
8.89
15.09 17.43 19.49 21.35 23.06
12.57 15.40 17.78 19.88 21.77
24.65
26. 14
27.56
23.52
25. 14
26.67
28.11
7.0
9.06
12.82
15.70
18. 13
20.27 22.20
23.98
25.63
27.19
28.66
7.5
9.49
13. 42
16. 44
18.98
21.22 | 23. 24
25. 11
26.84
28.47
30.01
8.0 9.91
14. 01
17.16
19.81
22. 15
24. 27
26. 21
28.02 29.72
31.33
8.5 10.32
14.59
17.87
20.63
23.07
25. 27
27.29
29.18
30.95
32.62
9.0 10.72
15. 15
18. 56
21. 43
23.96
26. 25
28.35
30.31
32. 15
33.89
9.5
35. 13
11. 11
33.33
15.71
31.42
19. 24 22.22
29.39
24.84 27. 21
HYDRAULIC TABLES
491
Table 39.-Velocity of water, v, in feet per second, based on
♡
.00005
1.486
n
Manning's formula v= r2/31/2
n=.060—Continued




|
.00010 .00015 .00020.00025.00030.00035.00040.00045 .00050
.00010.00015 |
T
10
0.81
1.15
1.41
1.63
1.82
1.99
2.15
2.30
2.44
2.57
11
.87
1.22
1.50
1.73
1.94
2. 12
2. 29
2.45
2.60
2. 74
12
.92
1.30 1.59
1.84
2.05
2.25
2.43
2.60
2.75
2.90
13
.97
1.37
1.68
1.94
2.17
2.37
2. 56
2. 74
2.90
3.06
14
1.02
1.44
1.76
2.03
2.27
2.49
2.69
2.88
3.05
3.22
15
1.07
1.51
1.84
2.13
2.38
2. 61
2.82
3.01
3.20
3.37
16 1.11
1.57
1.93
2.22
2.49
2.72 2.94
3.15 3.34
3.52
17
1.16
1.64
2.01
2.32
2.59
2.84
3.06 3.27
3.47
3.66
18
1.20
1.70
2.08
2.41
2.69
2.95
3.18
3.40
3.61
3.80
19
1.25
1.76
2.16
2.49
2.79
3.05
3.30
3.53 3.74
3.94
20
1.29
1.82
2. 23
2.58
2.89
3.16
3.41
3.65
3.87
4.08
21
1.33
1.89
2. 31
2.67
2.98
3. 27
3.53
3.77 4.00
4.22
22
1.37
1.94
2.38
2.75
3.07
3.37
3.64
3.89
4.12
4.35
23 1.42
2.00
2.45
2.83
3.17
3.47
3.75
4. 01
4. 25
4.48
24
1.46
2.06
2.52
2.91
3.26
3.57
3.86
4. 12
4.37
4.61
25
1.50
2.12
2.59
2.99
પ
37
12522 AM*** *888
3.35 3.67
3.96
4. 24
4.49
4.73
26
1.54
2.17
2.66
3.07 3.44
3.76
4.07
4.35
4.61
4.86
27
1.58
2. 23
2.73
3.15
3.52
3.86
4.17
4.46
4.73
4.98
28
1.61
2.28
2.80
3. 23
3.61
3.96
4. 27
4.57
4.84
5. 11
29
1.65
2. 34
2.86
3.31
3.70
4.05
4.37
4.68
4.96
5.23
30
1.69
2.39
2.93
3.38
3.78
4. 14
4.47
4.78
5.07
5.35
31 1.73
2.44 2.99
3.46
3.86
4.23
4.57
4.89
5. 18
5.47
32 1.77
2.50
3.06
3.53
3.95
4.32
4.67
4.99
5.30
5.58
33
1.80
2.55 3.12 3.60
4.03
4.41
4.77
5.10
5. 41
5.70
34
1.84
2.60 3.18
3.68
4. 11
4.50
4.86
5. 20
5.51
5.81
35
1.87
2.65 3.25 3.75
4.19
4.59
4.96
5.30
5.62
5.93
36
1.91
2.70
3.31
3.82
4. 27
4.68
5.05
5.40
5.73
6.04
1.94
2.75 3.37
3.89
4.35
4.76
5. 14
5.50
5.83
6.15
38
1.98 2.80
3.43 3.96
4.43
4.85
5. 24
5.60
5.94
6.26
39
2. 01
2.85
3.49 4.03
4.50
4.93
5.33
5.70
6.04
6.37
40
2.05
2.90
3.55
4.10
4.58
5.02
5.42
5.79
6. 14
6.48
41
42
****
2.08
2.94 3.61
4. 16
4.66
5.10 5.51
5.89
6. 25
6.58
2. 12
2.99 3.67
4.23
4.73
5.18
5.60
5.98
6.35
6.69
43
2. 15
3.04 3.72
4.30
4.81
5. 27
5.69
6.08
6.45
6.80
44
2. 18
3.09
3.78
4.37 4.88
5.35
5.77
6. 17
6.55
6.90
45
2. 22
3.13
3.84
4.43
4.95
5.43
5.86
6. 27
6.65
7.01
46
2.25
3.18
3.89 4.50
5.03
5.51
5.95
6.36
6.74
7.11
47
2. 28
3.23 3.95
4.56
5. 10
5.59
6.03
6.45
6.84
7.21
48
2.31
3.27 4.01 4.63
5.17
5.67
6. 12
6.54
6.94
7.31
49
2. 35
3.32
4.06 4.69
5. 24
5.74
6. 20
6.63
7.04
7.42
50
7.13 7.52
2. 38
6.72
3.36
6.29
4.12 4.75
5.82
5.31
492
HYDRAULIC TABLES
Table 39.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= 72/31/2
Go
n=.060—Continued

.00055 .00060 .00065.00070 | .00075.00080.00985 | .00090.00095 | .00100
00070
10
2.70
2.82
2.93
3.04
3. 15
3.25 3.35 3.45 3.54
3.64
11
2.87
3.00
3.12
3.24
3.35
3.46 3.57
3.67
3.78
3.87
12
3.04
3. 18
3.31
3.43
3.56
3.67
3.78
3.89
4.00
4. 11
13
3.21
3.35
3.49
3.62
3.75
3.87
3.99
4. 11
4.22
4.33
14
3.37
3.52
3.67
3.81
3.94
4.07
4. 19
4.32
4.43
4.55
15
3.53
3.69
3.84
3.99
4. 13
4.26
4.39
4.52
4.64
4.76
16
3.69
3.85
4.01
4. 16
4.31
4.45
4.58
4.72 4.85
4.97
17
3.84
4.01
4. 17
4.33
4.48
4. 63
4.77
4.91
5.05
5. 18
18
3.99
4. 17
4.34
4.50
4.66
4.81
4.96
5. 10
5. 24
5.38
19
4. 14
4.32
4.50
4.67
4.83
4,99
5. 14
5. 29
5. 44
5.58
20
4.28
4.47
4.65
4.83
5.00
5.16
5.32
5.47
5.62
5.77
21
4.42
4.62
4.81
4.99
5. 16
5.33
5.50
· 5.66
5.81
5.96
22
4.56
4.76
4.96
5. 14
5.33
5.50
5.67
5.83
5.99
6. 15
23
4.70
4.91
5. 11
5.30
5.49
5.67
5.84
6. 01
6. 17
6.33
24
4.83
5.05
5.25
5.45
5.64
5.83
6.01
6.18
6.35
6.52
25 4.97
5. 19
5.40
5.60
5.80
5.99
6.17
6.35
6.53
6.70
26
5.10
5.32
5.54 5.75
5.95
6. 15
6.34
6.52 6.70
6.87
27
5.23
5.46
5.68
5.90
6.10
6.30
6.50
6.69
6.87
7.05
28
5.36
5.59
5.82
6.04
6.25
6.46 6.66
6.85
7.04
7.22
29
5.48
5. 73
5.96
6. 19
6.40
6.61
6.82
7.01 7.21
7.39
30
5.61
5.86
6. 10
6.33
6.55
6.76
6.97
7.17
7.37
7.56
31
5.73
5.99
6. 23
6.47
6.69
6.91
7. 13
7.33 7.53
7.73
32
5.85
6. 11
6.36
6.60 6.84
7.06
7.28
7.49
7.69
7.89
33
5.98
6. 24
6.50
6.74
6.98
7.21
7.43 7.64
7.85
8.06
34
6.10
6.37
6.63
6.88
7. 12
7.35
7.58 7.80
8.01
8.22
35
6.21
6.49
6.76 7.01
7.26
7.50
7.73
7.95
8. 17
8.38
36 6.33
6.61
6.88
7.14 7.39
7.64
7.87
8.10
8.32
8.54
37
6.45
6.74 7.01
7.28 7.53
7.78
8.02
8.25
8.48
8.70
38
6.57 6.86 7.14
7.41
7.67
7.92
8. 16
8.40
8.63
8.85
39 6.68 6.98 7.26
7.54
7.80
8.06
8.30
8.54
8.78
9.01
40
6.79 7.10
7.39
7.66
7.93
8. 19
8.45
8.69 8.93
9.16
41
6.91
7.21 7.51
7.79 8.06
8.33
8.59 8.83 9.08
9.31
42
7.02
7.33 7.63
43
7. 13
7.45
7.92
7.75 8.04 8.32
8.20
8.46
8.72 8.98
9.22
9.46
8.60
8.86 9.12
9.37
9.61
44
7. 24
7.56
7.87 8.17
8.45
8.73
9.00 9.26 9.51
9.76
45
7.35
7.68 7.99 8.29
8.58
8.86
9. 14
9.40 9.66
9.91
46
7.46
7.79
8.11 8.41
8.71
8.99
9.27
9.54
9.80
10.05
47
7.56
7.90 8.22 8.53
8.83
9.12
9.40 9.68 9.94
10. 20
48 7.67
8.01 8.34 8.65
8.96 9.25
49
7.78
8.12 8.46 8.77
9.08
9.54 9.81 10.08
9.38 9.67 9.95 10.22
10. 34
10.49
50
10.63
7.88
9.80 10.08 10.36
8.23 8.57 8.89
9. 51
9.21
HYDRAULIC TABLES
493
Table 39.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= ∙r2/3g1/2
n
n=.060
-Continued

s
.0010
.0015
.0020
.0025
.0030 .0035 .0040 .0045
.0050
T
10
SIRRI
3.64
4. 45
5. 14
5.75
6.30 6.80
7.27
7.71
8. 13
11
3.87
4.74
5.48
6. 12
6.71
7.25
7.75
8.22
8.66
12
4. 11
5.03
5.81
6.49
7.11
7.68
8. 21
8.71
9. 18
13
4. 33
5.30
6. 12
6.85
7.50
8.10
8.66
9.19
9.68
14
4.55
5.57
6.43
7.19
7.88
8.51
9.10
9.65
10.17
15
4.76
5.83
6.74
7.53
8.25
8.91
9.53
10. 10
10.65
16
4.97
6.09
7.03
7.86
8.61
9.30 9.95
10.55
11. 12
17
5. 18
6.34
7.32
8.19
8.97
9.69
10.36
10.98
11.58
18
5.38
6.59 7.61
8.51
9.32
10.06
10.76
11.41
12.03
19
5.58
6.83
7.89
8.82
9.66
10.43
11. 15
11.83
12.47
20
21
24
25
26
27
28
29
30
35
2*23* *REER AM*** **=== ==*** ****
5.77 7.07
8.16
9.12
9.99
10.80
11.54 12.24
12.90
5.96 7.30
8.43
9.43
10.33
11. 15
11.92
12.65
13.33
6.15
7.53
8.70
9.72
10.65
11.50
12.30
13.04
13.75
6.33
7.76
8.96
10.02
10.97
11.85
12.67
13. 44
14. 16
6.52
7.98
9.22
10.30
11.29
12. 19
13.03
13.82
14. 57
6.70
8.20
9.47
10.59
11.60
12.53
13.39
14.20
14.97
6.87
8.42
9.72
10.87
11.91
12.86
13.75
14.58
15.37
7.05
8.63
9.97
11. 15
12. 21
13. 19
14. 10
14.95
15.76
7.22
8.84
10.21
11.42
12. 51
13.51
14. 44
15.32
16. 15
7.39
9.05
10. 45
11.69
12.80
13.83
14.79
15.68
16.53
7.56
9.26
10.69
11.96
13.10
14.15
15.12
16.04
16.91
31
7.73
9.47
10.93
12. 22
13.39
14. 46
15. 46
16.40
17.28
32 7.89
9.67
11. 16.
12.48
13.67
14.77
15.79
16.75
17.65
33
8.06
9.87
11.40
12.74
13.96
15.07
16. 12
17.09
18.02
34
8. 22
10.07
11.62
13.00
14. 24
15.38
16.44
17.44
18.38
8.38
10.26 11.85
13.25
14.51
15.68
16.76
17.78
18.74
36
8.54 10.46 12.08 13.50
14.79
15.97
17.08
18. 11
19.09
37
8.70 10.65 12.30
13.75
15.06
16.27
17.39
18.45
19.45
38 8.85 10.84
12.52
14.00
15.33
16 56
17.70
18.78
19.79
39
9.01 11.03
12. 74
14. 24
15.60
16.85
18.01
19.11
20. 14
40
9.16
11. 22
12.95
14.48
15.87
17. 14
18.32
19. 43
20.48
41
9.31
11.41
13. 17
14. 72
16. 13
17.42
18.62
19.75
20.82
42
9.46
11,59
13.38
14.96
16.39
17.70 18.93
20.07
21. 16
43
9.61
11.77
13.59
15.20
16.65
17.98 19.23 20.39
21.49
44 9.76 11.95
13.80
15. 43
16.91
18.26 19.52
20.71
21.83
45
9.91
12. 14
14.01
15.67
17.16
18.54
19.82
21.02
22.16
46
10.05
12.31
14.22
15.90
17.42
18.81 20.11
21.33
22, 48
47 10.20
12.49
14.42
16. 13
17.67
19.08
20.40
21. 64
22.81
48
10.34 12.67
14. 63
16.36
17.92
19.35
20.69
21. 94
23.13
49
10.49 12.84
14.83
16.58
18. 16
19.62
20.97
22.25
23.45
50
23.77
10.63 13.02 15.03
22.55
16.81 18.41 19.89
21.26
494
HYDRAULIC TABLES
Table 39.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.060—Continued

.0055
.0060
.0065
.0070 .0075
.0080
.0085 .0090 .0095
.0100
T
།
10
8.53
8.90
9.27
9.62
9.96
10.28
10. 60
10.91
11.20 11.50
28
==== ===== 22232 ****2 A-8** ---- SE*** 49583 8
11
9.08
9.49 9.88
10. 25
10.61
10.96
11.29
11. 62
11.94
12.25
12
9.63
10.06
10.47
10.86
11. 24
11. 61
11.97
12. 32
12.65
12.98
13
10. 15
10. 61
11.04
11.46
11.86
12.25
12.62
12.99
13. 35
13.69
14
10.67
11. 14
11.60
12.04
12.46
12.87
13.26
13. 65
14.02
14.39
15
11. 17
11.67
12. 14
12.60
13.05
13.47
13.89
14. 29
14.68
15.06
16
11.66
12. 18
12.68
13. 16
13. 62
14. 07
14.50
14.92
15.33
15.73
17 12. 14
12.68
13.20
13.70
14. 18
14.65
15. 10
15. 53
15.96
16. 37
18
12.62
13. 18
13.71
14.23
14. 73
15. 21
15.68
16. 14
16. 58
17.01
19
13.08
13. 66
14. 22
14.75
15. 27
15.77
16. 26
16. 73
17. 19
17.63
20 13.53
14. 14
14.71
15. 27
15.80
16.32
16.82 17.31
17.79
18. 25
21
13.98
14.60
15.20
15. 77
16.33
16.86
17.38 17.88
18.37
18.85
14. 42
15.06
15.68
16. 27
16.84
17.39
17.93 18.45
18.95
19.45
14.85
15.52
16. 15
16.76
17.35
17.92
18.47
19.00
19. 52
20.03
24
15.28
15.96
16. 61
17. 24
17.85
18.43
19.00
19. 55
20.08
20.61
25
15.70
16.40
17.07
17.72
18.34
18.94
19.52
20.09
20.64
21. 18
26
16. 12
16. 84
17.52
18. 19
18.82
19. 44
20.04
20.62
21. 19
21.74
27
16.53
17.27
17.97
18.65
19.30
19.94
20.55
21. 15
21.73
22.29
16.94
17.69
18.41
19. 11
19. 78
20.43
21.05
21.67
22.26
22.84
29
17.34
18. 11
18.85
19.56
20.25
20.91
21.55
22. 18
22.79
23.38
30
17.73
18.52
19. 28
20.01
20.71
21. 39
22.05
22.68
23.31
23.91
31
18. 13
18.93
19.70
20.45
21. 17
21.86
22. 53
23.19
23.82
24. 44
32
18.51
19.34
20. 13
20.89
21.62
22.33
23.01
23.68
24.33
24.96
33
18.90
19.74
20.54
21.32
22. 07
22.79
23.49
24. 17
24.84
25.48
34
19. 28
20.13
20.96
21.75
22. 51
23. 25
23.96
24. 66
25. 33
25.99
35
19. 65
20.53 21.37
22.17
22.95
23.70
24.43
25. 14
25.83
26.50
36
20.03
20.92 21.77 22.59
23.38
24. 15
24.89
25.62
26.32
27.00
37 20.39
21.30
22.17 | 23.01
23.82
24.60
25. 35
26.09
26.80
27.50
38
20.76
21.68
22.57 23.42
24. 24
25.04
25.81
26.56
27. 28
27.99
39
21. 12
22.06
22.96
23.83
24. 67
25.48
26. 26
27.02
27.76
28.48
40 21.48
22. 44
23.35
24. 24
25.09
25.91
26. 71
27.48
28.23
28.97
41
21.84
22.81
23.74
24. 64
25.50
26. 34
27. 15
27.94
28.70
29.45
42 22.19
23. 18
24. 13
25.04
25.92 | 26. 77
27.59
28.39 29.17
29.92
43 22.54
23.55
24. 51
25. 43
26. 33
27. 19
28.03
28.84 29.63 30.40
44 22.89
23.91
24.89
25.83
26.73
27. 61
28.46
29.28 30.09 30.87
46
23. 24
23.58
24. 27
25. 26
26. 22
27. 14
28.03 28.89
29.73
30.54
31.33
24.63
25.63
26.60
27.54
28.44
29.31
30. 16
30.99
31.80
47
23.92
24.98
26.00
26.99 27.93 28.85
29.74
30.60
31.44
32. 26
24. 26
25. 34
26. 37
24.59
25.69
26. 74
27.37 28.33 29.26
27.75 28.72 29.66
30.16
31.03 31.88
32. 71
30.58 31.46
32.32
33. 16
50 24.93
26.04
27.10 28.12 29.11 30.06
30.99 31.89
32.76
33. 61
HYDRAULIC TABLES
495
T
Table 39.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.060-Continued


Co
8
.01
.02
.03
.04
.05
.06
.07 .08
.09
.10
18
21
25
26
31
33
36
40
41
43
47
48
PIRII 49222 222** RAAKR AHC** ***** ***** *9*92
10
11.50
16.26
19.91 22.99
25.71
28.16
30.41 32.51
34.49 36.35
11
12. 25
17.32 21.22
24.50
27.39
30.01
32.41 34.65 36.75
38.74
12
12.98
18.36
22.48 25.96
29.03
31.80
34.35
36.72
38.94
41.05
14
13 13.69
14.39
19.36 23.72 27.39
20.35 24.92
30.62
33. 54
36.23
38.73
41.08
43.30
28.77
32. 17
35. 24
38.06
38.06
40. 69
43. 16
45.49
15
15.06
21.30 26.09 30.13
33.68
36.90
39.85
42.61
45. 19
47.64
16
15.73
22.24
27.24 31.45
35. 16
38.52
41.61
44.48
47. 18
49.73
17
16.37
23. 16
28.36 32.75
36.61
40.11
43.32
46.31
49.12
51.78
17.01
24.06
29.46 34.02 38.04
41.67
45. 01
48.11
51.03
53.79
19
17.63
24.94
30.54 35.27
39.43 43.20
46.66
46.66
49.88
52.90
55.77
20
18.25
25.81
31. 61
36.50
40.80
44.70
48. 28
51.61
54.74
57.71
18.85
26.66
32.65
37.70
42.15
46. 18
49.88
53.32 56.55
59.61
19.45
27.50 33.68 38.89
43.48
47.63
51.45 55.00
58.34
61.49
23
20.03 28.33 34.69
40.06
44.79
49.06
53.00
56.65
60.09
63. 34
24
20.61
29.14 35.69
41.21
46.08
50.48
54. 52 |
58. 28
61.82
65. 16
21.18 29.95 36.68 42.35
47.35
51.87
56.02
59.89
63.53
66.96
21.74 30.74 37.65 43.47
48.60
53.24 57.51
61.48
65. 21
68.74
27
22.29
31.52 38.61
44.58
49.84
54.60 58.97
63.05
66.87
70.49
28 22.84 32.30
29
30
23.38
39.55
33.06 40.49
45. 67
51.07 55.94
60.42
64.59
68.51
72.22
46.76
52.27
57.26
61.85
66. 12
70. 13
73.93
·
23.91
33.82 41.42 47.82 53.47
58.57
63.27
67.63 71.74
75.62
24. 44
34.56
42.33 48.88 54.65
59.87
64.66
69.13 73.32
77.29
32
24.96
35.30 43. 24
49.93
55.82
61. 15
66.05
70.61
74.89
78.94
25.48
36.04
44. 13
50.96
56.98
62.41
67.42
72. 07
76.44
80.58
34 25.99
36.76
45.02 51.99
58.12 63.67
68.77
73.52
77.98
82.20
35
26.50
37.48
45.90 53.00 59.26
64.91
70.11
74.95 79.50
83.80
27.00
38. 19
46.77 54,00 60.38
66.14
71.44 76.37
81.01 85.39
37
27.50
38.89 47.63
55.00 61.49
67.36
72.76
77.78 82.50
86.96
38 27.99 39.59 48.49 55.99
62.60
68.57
74.06
79.18 83.98
88.52
39
28.48 40.28 49.33 56.96
63.69
69.77
75.36
80.56 | 85.45
90.07
28.97 40.97 50. 17
57.93 64.77
70.96
76.64 81.93
86.90
91.60
29.45 41.65
51.01
58.90 65.85
72. 13
77.91 83.29
88. 34
93. 12
42 29.92 42.32 51.83 59.85
66.91 | 73.30
79.17
84.64
89.77
94.63
30.40
42.99
44 30.87
43. 65
52.65
53.46 61.74
60.80
67.97 74.46
80.43
85.98
91. 19
96. 13
69.02
69.02 75.61
81.67
87.31
92.60
97. 61
45
46
31.33
31.80
44. 31
54.27 62.67
70.06| 76.75
82.90
88.62
94.00
99.09
44.97
55.07
63.59
71. 10
77.88
84.12
89.93
95.39
100.55
32. 26
32.71
45. 62
55.87
64. 51
72. 12
79.01
85.34
91. 23
96. 77
102.00
46.26 56.66 65. 42
73. 14
80.13
86.55
92. 52
98. 13
103. 44
49 33.16
46.90 57.44
66.33
74.16
81.23
87.74
93.80
99. 49
104.87
50
106.30
33. 61 47.54 58. 22
88.93 95.07 100.84
67.23
82.34
75. 16
496
HYDRAULIC TABLES
Table 40.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.065

8
.00005 .00010
T
.00015 .00020.00025 .00030.00035.00040.00045.00050
0015
0.2
0.06
0.08
0.10 0.11 0.12
0.15 0.16
0.4
.09
0.16 0.17
.12
.15
0.17
.18
.20 .21
.23
0.6
.25
.26
.11
.16
.20
.28
.23
.26
.28
0.8
30
.14
.33
.20
.24
.28
.34
.36
.31
.34
.37
.39
.42
.44
1.0
.16
•
1.2
.18
1. 4
.20
1.6
22
•
1.8
· 24
2.0
2.2
26
27
.36
•
•
2.4
.29
2.6
.31
. 43
2.8
.32
.45
3.0
.34
.48
3.2
.35
.50
3.4
.37
.52
3. 6
.38
3.8
.39
4.0
41
·
.58
4.2
.42
.60
4.4
.43
.61
4.6
.45
.63
4.8
.46
•
5.0
5.2
5. 4
5. 6
5.8
1246∞
.47
•
.49
.69
.50
.70
.51
.72
.52
.74
Nado* A TODO 8586 CORNN
28
·
.32
36
•
.40
.43
.46
.26
.48
.32 .37
.51
41
.45
.48
.52
.29
.55
.35 .40
. 31
.45
.58
.50
.54
.57
.61
.38
.64
.44
.49
.54
.59
.63
.34
.41
66
.48
·
.70
.53
.59
.63
. 68
.72
.76
.44
.51 .57
.63
.68
.47
.73
.77
.81
.55
.61
.67
.72
.77
.82
.50
.86
.58
.65
.71
.77
.82
.53
.87
.92
.61
.68
.75
.81
.86
.92
.97
.56
.64
.72
.79
.85
.91
.96
1.02
.58 .67
.75
.82
89
•
.61
.95
1.01
1.06
.70
.78
.86
.93
.99
1.05
.63
1.11
.73
.82
.90
.97 1.03
1.10
.54 .66 .76
1.16
.85
.93
1.00 1.07
1.14
56
.68 .79
1.20
.88
.96
1.04
1.11
1. 18
1.24
. 71
.81
91
•
1.00
1.08
1.15
1.22
.73
1.29
.84
.94
1.03
1. 11
1.19
1.26
.75
.87
1.33
.97
1.06
1.15
1.23
.77
1.30
1.37
.89
1.00
1.10
1. 18
1.26
1. 34
.80 .92
1.41
1.03 1.13
1.22
1.30
1.38
1.45
•
82 .95
1.06
1.16
1.25
1.34
1.42
.84 .97
1.49
1.08
1.19
1.28
1.37
1.46
.86 1.00
1.53
1.11
1.22
1.32
1.41
.88
1.49
1.02
1.57
1. 14
1.25
1.35
1. 44
1.53
.90
1.61
1.04
1.17
1.28 1.38
1.48
1.57
1.65
6.0
.53
.75
.92
1.07
1. 19
1.31
6.2
1. 41
.55
1.51
.77
1.60
.94
1.09
1.69
1.22
1.34
6.4
1.44
.56
.79
1.54 1.64
.97
1.73
1.11
1.25
1.36
6.6
1.47
.57
1.58
.80
1.67
.99
1.14
1.76
1. 27
1.39
6.8
.58
1.50 1.61
.82
1.71
1.00
1.16
1.80
1.30
1.42
1.54
1.64
1.74
1.83
7.0
.59
.84
1.02
1.18
1.32
1.45
7.5
1.57
.62
.88
1.07
1.67 1.77
1.24
1.87
1.38
8.0 .65
.91
1.12
8.5
1.29 1.45 1.58
1.52 1.64
1.71
1.75
1.86
1.96
.67
.95
1.17
1.83 1.94
2.04
1.35
9.0
1.51 1.65
1.78
.70
1.90
2.02
99
·
1. 21
2. 13
1.40
1.56
1.71 1.85
1.98
2. 10
2. 21
9.5
2.29
.73
2.18
1.03
2.05
1.26
1.92
1.45
1.78
1.62
HYDRAULIC TABLES
497
Table 40.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.065—Continued

.00055
.00060
.00065.00070.00075.00080.00085.00090.00095 .00100
.00090
|
T
0.2
0.18
0.19
0.20
0.21
0.21
0.22 0.23 0.23 0.24
0.25
0.4
.29
.30
.32
.33
.34 .35
.36
.37
.38
.39
0.6
.38
.40
.41
.43
.45
.46
.47
.49
.50
.51
0.8
.46
.48
-.50
.52
.54
.56
.57
.59
.61
.62
1.0
.54
.56
.58
.60
.63
.65
. 67
69
.70
.72
•
1.2
. 61
.63
.66
68
.71
.73
.75
•
.77
.80
.82
1.4
.67
.70
.73
.76 .78
.81
.83
.86
.88
.90
1.6
.73
.77
.80
.83
.86
.88
.91
.94
.96
.99
1.8
.79
.83
.86
.90
.93
.96
.99
1.01
1.04
1.07
2.0
.85
.89
.93
.96
.99
1.03
1.06
1.09
1. 12
1. 15
2.2
.91
.95
.99
1.02
1.06
1.09
1. 13
1.16
1. 19
1.22
2.4
.96
1.00
1.04
1.08
1.12
1.16
1.19
1. 23
1.26
1.30
2.6
1.01
1.06
1. 10
1. 14
1. 18
1.22
1.26
1.30
1.33
1. 37
2.8
1.07
1. 11
1.16
1.20
1. 24
1.28
1. 32
1.36
1.40
1.44
3.0
1.12
1.16
1. 21
1.26
1.30
1.35
1.39
1.43
1.47
1.50
3.2
1.16
1.22
1.27
1. 31
1.36
1.40
1.45
1.49
1.53
1.57
3.4 1.21
1.27
1.32
1.37
1.42
1.46 1.51 1.55
1.59
1. 63
3.6
1.26
1.32
1.37
1.42
1.47
1.52
1.57 1.61
1.66
1.70
3.8
1.31 1.36
1.42
1. 47
1.52
1.57
1.62
1.67
1.72
1.76
4.0
1.35
1.41
1.47
1.52
1.58
1.63
1.68
1.73
1.78
1.82
4. 2
1.40
1.46 1.52
1.57
1. 63
1.68
1.74
1.79
1.83
1.88
4.4
1.44
1.50 1.57
1.62
1.68
1.74
1.79 1.84
1.89
1. 94
4.6
1.48
1.55 1.61
1.67
1.73
1.79 1.84
1.90
1.95
2.00
4.8
1.53
1.59 1.66
1.72
1.78
1.84
1.90 1.95
2.01
2.06
5.0 1.57 1.64
5.2 1.61
1.70 1.77
1.83
1.89
1.95
2.01
2.06
2. 11
1.68
1.75 1.82
1.88
1.94
2.00
2.06
2.11
2. 17
5.4
1.65
1.72
1.79
1.86
1.93
1.99
2.05
2.11
2.17
2. 23
5.6 1.69
1.77
1.84
1.91
1.97
2.04
2. 10
2. 16
2.22
2. 28
5.8
1.73
1.81
1.88
1.95
2.02
2.09
2. 15
2. 21
2.27
2. 33
6.0
1.77 1.85
1.92
2.00
2.07
2. 14
2.20
2.26
2.33
2.39
6.2 1.81
6.4 1.85 1.93
1.89 1.97
2.04 2.11
2. 18
2. 25
2.31
2.38
2.44
2.01
2.09
2.16
2. 23
2.30
2.36 2.43
2.49
6.6
1.89 1.97
2.05
2. 13
2.20
2. 28
2.35
2.41 2.48
2. 54
6.8 1.92
2.01
2.09
2.17
2. 25
2.32
2.39 2.46
2.53
2.59
7.0
1.96
2.05
2. 13
2.21
2. 29
2.37
2. 44
2.51 2.58
2. 65
7.5
2.05
2. 15
2. 23
2.32
2.40
2.48
2.55
2.63
2.70
2.77
8.0
2. 14
2. 24
2.33
2.42
2.50
2.59
2. 67
2.74 2.82
2.89
8.5
2.23
2.33
2. 43
2.52
2. 61
2.69
2.78
2.86
2.93
3. 01
9.0
2.32
2.42
2.52
2.62
2.71
2.80
2.88 2.97
3.05
3. 13
9.5
3. 24
2.40
3.16
2.51
2.90 2.99 3.08
2.61 2.71
2.81
498
HYDRAULIC TABLES
Table 40.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.065—Continued


3
.0010
.0015
.0020
.0025
.0030 .0035 .0040
.0045
.0050
T
0.2
0.25
0.30
0.35
0.39
0.43 0.46
0.49
0.52
0.55
0.4
.39
.48
.56
.62
.68
.73
.78
.83
.88
0.6
.51
.63
.73
.81
.89
.96
1.03 1.09
1. 15
0.8
.62
.76
.88
.99
1.08
1.17
1.25
1.32
1.39
1.0
.72
.89
1.02
1.14 |
1.25
1.35
1.45
1.53
1.62
1.2
.82
1.00
1. 15
1.29
1.41
.1.53
1.63
1.73
1.83
1.4
.90
1.11
1.28
1.43
1.57
1.69
1.81
1.92
2.02
1.6
.99
1.21
1.40
1.56
1.71
1.85
1.98
2.10
2. 21
1.8
1.07
1.31
1.51
1.69
1.85
2.00
2. 14
2.27
2.39
2.0
1. 15
1.41
1.62
1.81
1.99
2.15
2.30
2. 43
2.57
2.2
1.22
1.50
1.73
1.93
2.12
2.29
2.45
2.59
2.73
2.4
1.30
1,59
1.83
2.05
2. 24
2.42
2.59
2.75
2.90
2.6
1.37
1.67
1.93
2. 16
2.37 2.56
2.73
2.90
3.06
2.8 1.44
1.76
2.03
2.27
2.49
2.69
2.87
3.05
3. 21
3.0
1.50 1.84
2. 13
2.38
2,60
2.81
3.01
3. 19
3.36
3.2
1.57 1.92
2.22
2.48
2.72
2.94
3. 14
3.33
3.51
3.4
1.63
2.00
2.31
2.58
2.83
3.06
3.27
3.47
3.66
3.6
1.70
2.08
2.40
2.68
2.94
3. 18
3.40
3.60
3.80
3.8
1.76
2.16
2.49
2.78
3.05
3.29
3.52
3.73
3.94
4.0
1.82
2.23
2.58
2.88
3. 16
3.41
3.64
3.86
4.07
4. 2
1.88
2.30
2.66
2.98
3.26
3.52
3.76
3.99
4. 21
4.4
1.94 2.38
2.75
3.07
3.36
3.63
3.88
4. 12
4.34
4.6
2.00 2.45
2.83
3. 16
3.46
3.74
4.00
4. 24
4.47
4.8
2.06
2.52
2.91
3.25
3.56
3.85
4.11
4.36
4.60
5.0 2.11
2.59
2.99
3.34
3.66
3.95
4. 23
4.48
4.73
5.2 2.17 2.66
3.07
3.43
3.76
4.06
4.34
4.60
4.85
5.4
2.23
2.73
3. 15
3.52
3.85
4. 16
4.45
4.72
4.98
5.6
2.28
2.79
3.22
3.60
3.95
4. 27
4.56
4.84
5. 10
5.8
2.33
2.86
3.30
3.69
4.04
4.37
4.67
4.95
5.22
6.0 2.39 2.92
3.38
3.77
4. 13
4.47
4.77
5.06
5.34
6.2
2.44
2.99
3.45
3.86
4. 23
4. 56
4.88
5. 18
5.46
6.4
2.49
3.05
3.52
3.94
4.32
4.66
4.98
5.29
5.57
6.6
2.54
3. 12
3.60
4.02
4.41
4.76
5.09
5.40
5.69
6.8
2.59
3. 18
3.67
4. 10
4.49
4.85
5. 19
5.50
5.80
7.0
2.65
3. 24
3.74
4. 18
4. 58
4.95
5.29
5.61
5.92
7.5
2.77
3.39
3.92
4.38
4.80
5. 18
5.54
5.88
6. 19
8.0
2.89
3.54
4.09
4.57
5.01
5.41
5. 78.
6. 13
6.47
8.5
3.01
3.69
4. 26
4.76
5. 22
5.63
6.02
6.39
6.73
9.0
3. 13
3.83
4.42
4.95
5.42
5.85
6.26
6.64
6.99
9.5
7.25
3.24
6.88
3.97
6.49
4.59
6.07
5. 13
5.62
HYDRAULIC TABLES
499
Table 40.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.065—Continued

.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090
.0095
.0100
T
0.2
0.58
0.61
0.63 0.65 0.68
0.70
0.72
0.74
0.76
0.78
0.4
.92
.96
1.00
1.04
1.07
1.11
1. 14
1. 18
1. 21
1. 24
0.6
1.21
1.26
1.31
1.36
1. 41
1.45
1.50
1. 54
1.59
1.63
0.8
1. 46
1.53
1.59
1. 65
1.71
1.76
1.82
1.87
1.92
1.97
1.0
1.70
1.77
1.84
1.91
1.98
2.04
2.11
2. 17
2. 23
2. 29
1.2
1.91
2.00
2.08
2.16
2. 24
2.31
2.38
2.45
2. 52
2.58
1.4
2. 12
2. 22
2.31
2.39
2. 48
2. 56
2. 64
2.71
2.79
2.86
1.6
2.32
2. 42
2.52
2. 62
2.71
2.80
2.88
2.97
3.05
3. 13
1.8
2.51
2.62
2.73
2.83
2.93
3.03
3. 12
3.21
3.30
3.38
2.0
2.69
2.81
2.93
3.04
3. 14
3.25
3.35
3.44
3.54
3.63
2.2
2.87
3.00
3. 12
3. 24
3.35
3.46
3. 57
3.67
3.77
3.87
2.4
3.04
3.17
3.30
3. 43
3.55
3.67
3.78
3.89
3.99
4. 10
2.6
3. 21
3.35
3.49
3. 62
3.74
3.87
3.99
4. 10
4. 21
4. 32
2.8
3.37
3.52
3.66
3.80
3.93
4. 06
4. 19
4.31
4. 43
4.54
3.0
3.53
3.68
3.83
3.98
4. 12
4. 25
4. 38
4.51
4. 63
4.76
3.2
3.68
3.85
4.00
4. 15
4.30
4. 44
4.58
4.71
4. 84
4.96
3.4
3.83
4.00
4. 17
4. 32
4. 48
4.62
4.77
4.90
5. 04
5. 17
3.6
3.98
4. 16
4. 33
4.49
4. 65
4.80
4.95
5.09
5. 23
5.37
3.8
4. 13
4.31
4. 49
4.66
4.82
4.98
5. 13
5. 28
5.43
5.57
4.0
4. 27
4. 46
4. 64
4.82
4.99
5.15
5. 31
5.47
5.61
5.76
4.2
4. 41
4.61
4.80
4.98
5. 15
5.32
5. 49
5.65
5.80
5.95
4.4
4.55
4.75
4.95
5. 14
5.32
5.49
5. 66
5.82
5.98
6. 14
4.6
4.69
4.90
5. 10
5.29
5. 48
5.66
5.83
6.00
6. 16
6.32
4.8
4.82
5.04
5. 24
5.44
5.63
5.82
6.00
6. 17
6. 34
6. 51
5.0 4.96
5. 18
5.39
5. 59
5.79
5.98
6. 16
6.34
6. 52
6.68
5.2 5.09
5.32
5.53
5.74
5.94
6. 14
6. 33
6.51
6.69
6.86
5.4 5.22
5. 45
5.67
5.89
6.09
6. 29
6.49
6.68 6.86
7.04
5.6
5.35
5.58
5.81
6.03
6. 24
6. 45
6.65
6.84 7.03
7.21
5.8
5.47
5.72
5.95
6. 17
6.39
6.60
6.80
7.00 7.19
7.38
6.0
5.60
5.85
6.09
6.32
6. 54
6.75
6.96
7.16 7.36
7.55
6.2
5.72
5.98
6. 22
6.46
6.68
6.90
7.11
7.32 7.52
7.72
6. 4
5.84
6. 10
6.35
6.59
6.82
7.05 7.27 7.48
7.68
7.88
6.6
5.97
6. 23
6.49
6.73
6.8
6.09
6.36
6.62
6.97 7.19 7.42 7.63
6.87 7.11 7.34 7.57
7.84
8.04
7.78
8.00
8. 21
7.0 6.20
6.48
6.74 7.00
7.24
7.48 7.71 7.94
8.15
8.37
7.5 6.50
6.79
7.06
7.33
7.59
7.83
8.08
8.31
8.54
8.76
8.0 6.78
7.08 7.37
7.65
7.92
8. 18
8.43
8.68 8.91
9. 14
8.5
7.06
7.38 7.68
7.97
8. 25
8.52
8.78
9.03
9.28
9.52
9.0 7.34
7.66
7.97 8.28
8.57
8.85
9. 12
9.38
9.64
9.89
9.5
10. 25
7.61
10.00
7.94
9.73
8.27 8.58
9.45
8.88
9.17
500
HYDRAULIC TABLES
Table 40.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.065—Continued

00
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2
0.78
1. 11
1.35
1.56
1.75
1.92
2.07
2. 21
2.35
2.47
0.4
1. 24
1.76
2. 15
2.48
2.78
3.04
3. 28
3. 51
3.72
3.92
0.6
1.63
2.30
2.82
3. 25
3.64
3.98
4.30
4.60
4.88
5. 14
0.8
1.97
2.79
3.41
3.94
4. 41
4.83
5. 21
5.57
5.91
6. 23
1.0
2. 29
3. 23
3.96
4.57
5.11
5.60
6.05
6. 47
6.86
7.23
1.2
2.58
3. 65
4.47
5. 16
5.77
6.32
6.83
7.30
7.74
8. 16
1.4
2.86
4. 05
4.96
5.72
6.40
7.01
7.57
8.09
8.58
9.05
1.6
3. 13
4.42
5.42
6. 25
6.99
7.66
8.27
8.85
9.38
9.89
1.8
3.38
4.78
5.86
6.77
7.56
8.29
8.95
9.57
10. 15
10.70
2.0
3.63
5. 13
6.29
7.26
8. 11
8.89
9.60
10. 26
10.89
11.48
2.2
3.87
5. 47
6.70
7.73
8.65
9.47
10. 23
10.94
11.60
12. 23
2.4
4. 10
5.80
7.10
8.20
9. 16
10.04
10.84
11.59
12. 29
12.96
2.6
4.32
6.11
7.49
8.65
9.67
10.59
11.44
12.23
12.97
13. 67
2.8
4. 54
6.42
7.87
9.08❘ 10. 16
11. 12
12.02
12.85
13. 62
14.36
3.0
4.76
6. 73
8. 24
9.51 10.63
11. 65
12.58
13. 45
14. 27
15. 04
3.2
4.96
7.02
8.60
9.93
11.10
12. 16
13. 13
14.04
14. 89
15. 70
3.4
5. 17
7.31 8.95
10.34
11.56
12.66
13.68
14.62
15.51
16.35
3.6
5.37
7.59
9.30
10.74
12.01
13. 15
14. 21
15. 19
16. 11
16.98
3.8
5.57
7.87 9.64
11. 13
12. 45
13.64
14. 73
15.75
16.70
17.60
4.0
5.76
8. 15
9.98
11.52
12.88
14. 11
15. 24
16. 29
17.28
18. 22
4.2
5.95
8.42
10.31
11.90
13. 31
14.58
15.75
16.83
17.85
18.82
4.4
6. 14
8.68
10.63
12.28
13.73
15. 04
16. 24
17.36
18.42
19.41
4. 6
6.32
8.94
10.95
12. 65
14. 14
15. 49
16.73
17.89
18.97
20.00
4.8
6. 51
9.20 11. 27
13. 01
14. 55
15.93
17.21
18.40
19.52
20.57
5.0
6. 68
9.45
11.58
13. 37
14.95
16. 37
17.69
18.91
20.05
21. 14
5.2
6.86
9.70
11.89
13.72
15.34
16.81
18. 15
19.41
20.59
21.70
5.4
7.04
9.95
12. 19
14. 07
15.73
17. 24
18.62
19.90
21. 11
22. 25
5.6
7. 21
10. 20
12.49
14.42
16. 12
17.66
19.07
20.39
21.63
22.80
5.8
7.38
10.44
12.78
14.76 | 16.50 |
18.08
19.53
20.87
22. 14
23.34
6.0
7.55
10.68 13.07
15. 10
16. 88
18.49
19.97 21.35
22.65
23.87
6.2
7.72
10.91
13.36
15. 43
17.25
18.90
20.41
21.82
23. 15
24.40
6.4
7.88
11. 14
13. 65
15. 76
17.62
19.30
20.85
22. 29
23.64
24.92
6.6
8.04
11.38
13.93
16.09
17.99
19.70
21. 28
22.75
24. 13
25.44
6.8
8. 21
11.60
14. 21
16.41
18.35 20.10
21.71
23. 21
24. 62
25.95
7.0
8.37
11.83
14.49
16.73
18.71 20.49
22.13
23.66
25.10
26.45
7.5
8.76
12.39 15. 17
17.52
19.59 21.46
23. 18
24.78
26.28
27.70
8.0
9. 14
12.93
15.84
18. 29
20.45
22.40
24. 19
25.86
27.43
28.92
8.5
9.52
13. 47
16. 49
19.04
21.29
23.32
25. 19
26.93
28.57
30.11
9.0
9.89
13.99
17. 13
19.78
22.12
24. 23
26. 17
27.98 29.67
31.28
9.5
32.43
10. 25
29.00 30.76
14.50 17.76
27.13
20.51
25.12
22.93
HYDRAULIC TABLES
501
.00005
.00010
0015
Table 40.—Velocity of water, v, in feet per second, based on
Manning's formula v= -r2/3s1/2
n=.065—Continued
.00015.00020.00025.00030.00035 | .00040 | .00045 | .00050
1.486
n

10 0.75
1.06
1.30 1.50 1.68
1.84 1.99
2.12
2.25
2.37
11
.80
1. 13
1.38
1.60 1.79
1.96
2.12
2. 26
2.40 2.53
12
.85
1.20
1.47
1.69
1.89
2.08
2.24
2.40
2.54
2.68
13
.89
1.26
1.55
1.79
2.00
2. 19
2.36
2.53
2.68
2.83
14
.94
1.33
1.63
1.88
2.10
2.30
2.48
2.66
2.82
2.97
15
.98
1.39
1.70
1.97
2.20
2. 41
2.60
2.78
2.95
3. 11
16
1.03
1.45 1.78
2.05
2.30
2.51
2.72
2.90
3.08
3.25
17
1.07
1.51
1.85
2. 14
2.39
2.62
2.83
3.02
3. 21
3.38
18
1.11
1.57
1.92
2.22
2.48
2.72
2.94
3. 14
3.33
3. 51
20
23
2 22284 22222 2228*
19
1.15
1.63
1.99
2.30
2.57
2.82
3.05
3. 26
3.45
3. 64
1. 19
1.68 2.06
2.38
2.66
2.92
3. 15
3.37
3.57
3.77
21
1.23
1.74
2.13
2. 46
2.75
3.01
3.26
3.48
3.69
3.89
1.27
1.79 2.20
2.54
2.84
3. 11
3.36
3.59
3.81
4. 01
1.31
1.85
2.26
2.61
2.92
3. 20
3. 46
3.70
3.92
4. 13
1.35
1.90 2.33
2.69
3. 01
3.29
3. 56
3.80
4. 04
4. 25
25
1.38 1.95 2.39
2.76
3.09
3.39
3.66
3.91
4. 15
4.37
26
1.42
2.01
2.46
2.84
3.17
3.48
3.75
4. 01
4. 26
4.49
27 1.45
2.06
2.52
2.91
3. 25
3. 56
3.85
4. 12
4.36
4.60
23
1.49
2.11
2.58
2.98
3. 33
3.65
3.94
4. 22
4. 47
4.71
29 1.53
2.16
2. 64
3.05
3.41
3.74
4. 04
4.32
4.58
4.83
30 1.56
2.21
2.70
3. 12
3.49
3.82
4. 13
4. 41
4. 68
4.94
31
1.60
2.26
2.76
3. 19
3.57
3.91
4. 22
4. 51
4.79
5.04
32
1.63
2,30
2.82
3.26
3. 64
3.99
4. 31
4. 61
4.89
5. 15
33
1.66
2.35 2.88
3. 33
3.72
4. 07
4. 40
4.70
4.99
5. 26
34
1.70
2.40
2.94
3.39
3.79
4. 16
4. 49
4.80
5.09
5.37
35
1.73
2.45 3.00
3.46
3.87
4. 24
4. 58
4.89
5. 19
5.47
36
1.76
2.49
3.05
3.52
3.94
4.32
4.66
4.99
5. 29
5. 57
37
1.79
2.54
3. 11
3.59
4. 01
4.40
4.75
5. 08
5.38
5. 68
38
1.83
2.58
3. 16
3.65
4.09
4. 48
4.83
5. 17
5. 48
5.78
39
1.86
2.63
3. 22
3.72
4. 16
4. 55
4.92
5. 26
5.58
5.88
40
1.89
2.67
3. 27
3.78
4. 23
4.63
5.00
5.35
5.67
5.98
41
1.92
2.72
3.33
3.84
4.30
4.71
5.09
5. 44
5.77
6.08
43
47
*** ***** 8
42
1.95
2.76
3.38
3.91
4.37
4.78
5.17
5.52
5.86
6. 18
1.98
2.81
3. 44
3.97
4. 44
4.86
5. 25
5. 61
5.95
6. 27
44
2. 01
2.85
3.49
4.03
4. 51
4.94
5. 33
5.70
6.04
6.37
45 2.05
2.89
3.54
4. 09
4. 57
5. 01
5. 41
5.78
6. 14
6.47
46
2.08
2.94
3.59
4. 15
4.64
5.08
5.49
5.87
6.23
6. 56
2.11
2.98
3. 65
4. 21
4. 71
5. 16
5. 57
5.95
6. 32
6. 66
48
2. 14
3.02
3.70
4. 27
4.77
5. 23
5.65
6.04
6. 41
6.75
49
2.16
3.06
3.75
4.33
4.84
5.30
5.73
6, 12
6. 49
6.85
50
2. 19
3. 10 3.80 4.39 4.91
5.37
5.80
6. 21
6. 58
6.94
502
HYDRAULIC TABLES
Table 40.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.065-Continued


T
♡
.00055
.00060
.00065.00070.00075.00080.00085.00090.00095.00100
10
2.49
2.60
2.71
2.81
2.91
3.00 3.09
3. 18
3.27
3.36
11
2. 65
2.77
2.88
2.99
3. 10
3.20
3.30
3.39
3.49
3.58
12
2.81
2.94
3.06
3. 17
3.28
3.39
3.49
3.59
3.69 3.79
13
2.96
3. 10
3. 22
3. 34
3.46
3.58
3.69
3.79
3.90
4.00
14
3. 11
3.25
3.39
3.51
3.64
3.76
3.87
3.98
4.09
4.20
15
3.26
3.41
3.55
3.68
3.81
3.93
4.05
4. 17
4. 29
4.40
16
3.40
3.56
3.70
3.84
3.98
4. 11
4. 23
4.35
4. 47
4. 59
17 3.54
3.70
3.85
4.00
4. 14
4. 28
4.41
4. 53
4.66
4.78
18
3.68 3.85
4.00
4. 15
4.30
4. 44
4.58
4. 71
4.84
4.97
19
3.82
3.99
4. 15
4.31
4.46
4.60
4.75
4.88
5.02
5. 15
20
3.95
4. 13
4.29
4.46
4.61
4.76
4.91
5.05
5. 19
5.33
21
4.08
4. 26
4. 44
4. 60
4.77
4.92
5.07
5.22
5.36
5.50
22N
22
4. 21
4.40
4. 58
4.75
4.92
5.08
5.23
5.38
5.53
5.68
23
4.34
4.53
4.71
4.89
5.06
5. 23
5.39
5. 55
5.70
5.85
24
4.46
4.66
4.85
5.03
5. 21
5.38
5.55
5.71
5.86
6.02
25
26
27
29
35
37
38
RRRRR A-8** ***** ***** *****
4.58
4.79
4.98
5. 17
5. 35
5. 53
5.70
5.86
6.02
6. 18
4.71
4.91
5. 12
5.31
5.49
5.68
5.85
6.02
6. 18
6.34
4.83
5.04
5.25
5.44
5.63
5.82
6.00
6. 17
6.34
6.51
28 4.94
5. 16
5.37
5.58
5.77
5.96
6. 15
6. 32
6.50
6.67
5.06
5. 29
5.50
5.71
5.91
6. 10
6. 29
6.47
6.65
6.82
30
5. 18
5.41
5.63
5.84
6.04
6. 24
6. 44
6.62
6.80
6.98
31
32
33
5. 29
5. 53
5.75
5.97
6. 18
6.38
6.58
6.77
6.95
7. 13
5.40
5. 64
5.87
6. 10
6.31
6. 52
6. 72
6.91
7.10
7.29
5.52
5.76
6.00
6. 22
6.44
6.65
6.86
7.06
7.25
7.44
34
5. 63
5.88
6. 12
6.35
6. 57
6.79
7.00
7.20
7.40
7.59
1
5.74
5.99
6.24
6.47
6.70
6.92
7. 13
7.34
7.54
7.74
36
5. 85
6. 11
6.35
6.59
6.83
7.05
7.27
7.48
7.68
7.88
5.95
6. 22
6.47
6.72 6.95
7.18
7.40 7.62 7.82
8.03
6.06
6. 33
6.59
6. 84
7.08
7.31
7.53 7.75
7.96
8. 17
39
6. 17
6. 44
6. 70
6.96
7.20
7.44 7.67
7.89
8.10
8.31
40
6. 27
6. 55
6.82
7.07
7.32
7.56
7.80
8.02
8. 24
8.46
6.37
6.66
6.93
7.19
7. 44
7.69
7.93
8. 15
8.38
8.60
42
6.48 6.77 7.04 7.31
7.56
7.81
8.05
8. 29
8.51
8.74
43
6.58 6.87 7.15 7.42
7.68
7.94
8. 18
8.42
8.65
8.87
44
6.68 6.98 7.26 7.54
7.80
8.06
8.31
8.55
8.78
9.01
45
6. 78
7.08 7.37 7.65
7.92
8.18
8.43
8.68
8.91
9. 15
46
6.88
7.19 7.48 7.77
8.04
8.30
8.56
8.81
9.05
9.28
47
6.98
7.29 7.59 7.88
8. 15
8.42
8.68
8.93
9. 18
9.42
48
7.08 7.40 7.70
7.99
8.27
8. 54
8.80
9.06
9.31
9.55
49
7. 18
7.50 7.80
8.10 8.38
8.66
8.93
9. 18
9.44
9.68
7.28
9.81
7.60 7.91
9.56
8. 21
9.31
8.50
9.05
8.78
HYDRAULIC TABLES
503
Table 40.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.065—Continued

co
.0010
.0015
.0020
.0025
.0030
.0035 .0040 .0045 .0050
30
32
33
35
37
39
40
41
45
46
49
CERRE 29202 22*** *2*** SH*** ***** ***** *****
10
3.36
4. 11
4.75
5.31
5.81
6.28
6.71
7.12
7.50
11
3.58
4.38
5.06 5.65
6. 19
6.69
7.15
7.59
8.00
12
3.79
4.64
5.36
5.99
6.56
7.09
7.58
8.04
8.47
13
4.00
4.90
5.65
6.32
6.92
7.48
7.99
8.48
8.94
14
4.20
5.14
5.94
6.64
7.27
7.86
8.40
8.91
9.39
15
4.40
5.39
6. 22
6.95
7.62
8.23
8.79
9.33
9.83
16
4.59
5.62
6.49
7.26
7.95
8.59
9.18
9.74
10.26
17
4.78
5.85
6.76
7.56
8.28
8.94
9.56
10. 14
10.69
18 4.97
6.08
7.02
7.85
8.60
9.29
9.93
10.53
11.10
19
5.15
6.30
7.28
8. 14
8.92
9.63
10.30
10.92
11.51
20
5.33
6. 52
7.53
8.42
9.23
9.97 10.65
11.30
11.91
21
5.50
6.74
7.78
8.70
9.53
10.29
11.01 11.67
12.30
5.68
6.95
8.03
8.97
9.83
10.62
11.35 12.04
12.69
23
5.85
7.16
8.27
9.24
10. 13
10.94
11.69
12.40
13.07
24
6.02
7.37
8.51
9.51
10.42
11.25
12.03
12.76
13.45
25
6. 18
7.57
8.74
9.77
10. 71
11.56
12.36
13. 11
13.82
26
6. 34
7.77
8.97
10.03
10.99
11.87
12.69
13.46
14.19
27
6. 51
7.97
9.20
10.29
11.27
12.17
13.01
13.80
14.55
28
6.67
8.16
9.43
10.54
11.55
12.47
13. 33
14. 14
14.91
29
6.82
8.36 9.65
10.79
11.82
12.77
13.65
14.48
15. 26
6.98
8.55
9.87
11.04
12.09
13.06
13.96
14.81
15.61
31
7.13 8.74
10.09
11. 28
12.36
13.35
14.27
15. 13
15.95
7.29 8.92
10.31
11.52
12.62
13.63
14.57
15.46
16. 29
7.44
9.11
10.52
11.76
12.88
13.91
14.88
15.78
16.63
34 7.59 9.29
10.73
12.00
13. 14
14. 19
15.17
16. 10
16.97
7.74 9.47
10.94
12.23
13.40
14.47
15.47
16.41
17.30
36 7.88 9.65
11.15
12.46
13.65
14.75
15.76
16.72
17.62
8.03 9.83 11.35
12.69
13.90
15.02
16.05 17.03
17.95
38 8.17
10.01
11.56
12.92
14. 15
15. 29
16.34
17.33
18. 27
8.31
10. 18
11.76
13.15
14.40
15. 55
16.63
17.64
18.59
8.46
10.36
11.96
13.37
14.65
15.82
16.91
17.94
18.91
8.60
10. 53
12.16 13.59
14.89
16.08
17.19
18.23
19. 22
42 8.74
43 8.87 10.87
10.70
12.35 13.81
15. 13
16. 34
17.47
18.53
19.53
12.55 14.03
15.37
16.60
17.75
18.82
19.84
44 9.01 11.04 12.74
14.25
15.61 16.86
18.02 19.11
20.15
9.15 11.20
12.93
9.28 11.37
13. 13
47 9.42 11.53
13.32
14.46 15.84
14.68 16.08
14.89 16.31 17.61
17.11
18.29
19.40
20.45
17.36
18.56
19.69
20.75
18.83 19.97
21.05
48 9.55 11.69 13.50 15.10 16.54
9.68 11.86
17.86
19.10 20.26
21.35
13.69 15.31
16.77
18.11
19.36
20.54
21.65
•
50
21.94
9.81 12.02 13.88 15. 51
19.62 20.81
16.99
18.36
504
HYDRAULIC TABLES
Table 40.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.065—Continued




co
8
.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090 .0095
.0100
T
10
7.87
8.22
8.56
8.88 9.19
9.49
9.78❘ 10.07
10.34 10.61
11
8.39
8.76
9.12
9.46
9.79
10. 11
10. 43 10.73
11.02
11.31
12
8.89
9.28
9.66
10.03
10.38
10.72
11.05
11.37
11.68
11.98
13
9.37
9.79
10. 19
10.58
10.95
11.31
11.65
11.99
12. 32
12. 64
14
9.85
10.29
10.71
11.11
11.50
11.88
12. 24
12.60
12.94
13.28
15
10.31
10.77
11. 21 11.63
12.04
12. 44
12.82
13.19
13.55
13.90
16
10.77
11. 24
11.70
12.15
12.57
12.98
13.38
13.77
14. 15
14. 52
17
11.21
11.71
12. 19
12.65
13.09
13.52
13.94
14. 34
14.73
15.11
18
11.64
12.16
12.66
13. 14
13.60
14.04
14.48
14.90
15.30
15.70
19
12.07
12.61
13. 12
13.62
14. 10
14.56
15.01
15. 44
15.87
16. 28
20
12.49
13.05
13.58
14.09
14.59
15.07
15. 53
15.98
16.42
16.84
21
12.91
13. 48
14.03 | 14. 56
15.07
15. 56
16. 04
16.51 16.96
17.40
22
13.31
13.90
14.47 15.02
15.54
16.05
16.55
17.03 17.50
17.95
23
13.71
14.32
14.91 15.47 16.01
16.54 17.05
17.54 18.02
18.49
24
14.11
14.73
15.34
15.91
16.47
17.01 17.54
18.05 18.54
19.02
25
14. 50
15. 14
15.76
16.35
16.93 17.48 18.02
18. 54
19.05
19.55
26
14.88
15.54
16. 18
16.79
17.38 17.95
18.50
19.03
19.56
20.06
27
15.26
15.94
16.59
17.21
17.82 18.40
18.97
19. 52
20.05
20.58
RR AM***
28
15.63 16.33
17.00 17.64 18.26
18.85
19.44
20.00
20.55
21.08
29
16.00 16.72
17.40
18.05
18.69
19.30
19.90
20.47
21.03
21.58
30
16.37 17.10
17.80
18. 47
19. 12
19.74
20.35
20.94 21.51
22.07
31 16.73 .17.48
18. 19
18.88
19.54
20. 18
20.80
21.40
21.99 22.56
32 17.09
17.85
18.58
19.28
19.96
20.61
21. 24
21.86
22.46
23.04
33 17.44
18. 22
18.96
19.68
20.37
21.04
21.68
22.31
22.93 23.52
34 17.79
18.59
19.34
20.07
20.78
21.46
22.12
22.76
23.39
23.99
35
18. 14
18.95
19.72 20.47
21. 18
21.88
22.55
23. 21
23.84
24.46
36
18.49
19.31
20.10 20.85
21.59
22. 29
22.98
23.65
24. 29
24.93
37
18.83
19.66 20.47 21.24
21.98
22.70
23.40
24.08
24.74
25.38
38
19. 16
20.02❘ 20.83 21.62
22.38
23. 11
23.82
24.51
25. 19
25.84
39
19.50
20.37 21.20 22.00 22.77
23.52
24. 24
24.94
25.63
26.29
40
19.83
20.71
41
20. 16
21.06
42
20.49
21.56 22.37 23.16
21.92 22.74
21.40 22.27 23.11
23.92
24.65
25.37
26.06
26.74
23.54
24. 31
25.06
25.79
26.49
27.18
23.92
24.71
25.47
26. 21
26.92
27.62
43
20.81
21.74 22.62 23.48 24.30
25. 10
25.87
26.62
27.35
28.06
44 21.13
22.07 22.97
23.84 24.68
25.49
26. 27
27.03 27.77
28.49
45
21.45 22.40 23.32
24.20 25.05
25.87
26.67
27.44
28. 19
28.92
46
21.77 22.73
23.66
24.56 25.42
26.25
27.06
27.84
28.61
29.35
47
22.08 23.06
24.00
24.91
25.79
26.63
27.45
28. 25
29.02
29.77
48 22.39 23.39
24. 34
25.26
26.15
27.01
27.84
28.65
29.43
30. 19
49
22.70 23.71
24. 68
25.61
26. 51
27.38
28. 22
29.04
29.84
30.61
50
30.24 | 31. 03
23.01 24.03
29.44
25.02 25.96
28.61
26.87
27.75
HYDRAULIC TABLES
505
T
Table 40.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.065—Continued

co
8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
10
10. 61
15.01
18.38
21. 22
23.73
25.99
11
11.31
15.99 19.59
22.62
25.28
27.70
12
11.98
16.95 20.75
23.97
26.79
29. 35
31.70
13
12. 64
17.88
21.89
25. 28
28.26
30.96
33.44
14
13.28
18.78 23.00
26.56
29.69
32.53
33.89 35.95
35.75
35.13 | 37.56
28.08 30.01
33.56
29.92 31.98 33.92 35.76
37.89
31.83
37.92 39.97
39.84
41.99
15
13.90
19.66
24. 08
27.81
31.09
34.06
36.79 39.33 41.71
43.97
16
14. 52
20.53
25.14
29.03❘ 32.46
35.56
38.41 41.06 43.55
45.90
17
15.11
21.38
26.18
30.23
33.80
37.02
39.99 42.75 45.34
47.80
18
15.70
22.21 27.20
31.40
35. 11 38.46
41.54 44.41 47.11
49.65
19
16.28
23.02
28.19
32. 56
36.40 | 39.87
43.07
46.04 48.83
51.48
20
16.84
23.82
29.18
33.69
37. 67
41.26
44.57
47.64
50.53
53.27
21 17.40
24.61
30. 14
34.80
38.91
42. 62
46.04
49. 22
52. 20
55.03
22 17.95 25.38
31.09
35.90
40. 14
43.97
47.49
50.77
53.85
56. 76
23 18.49
26.15 32.02
36.98
41.34
45.29
48.92 52.30
55.47
58.47
24 19.02
26.90 32.95
38.04
42. 53
46. 59
50.33
53.80
57.06
60. 15
પર ત્ય
25
19.55
27.64
33.86 39.09
43.71
47.88
51.71
55.29
58.64
61.81
26
20.06 28.38
34.75 40.13
44.86
49.15
53.08
56.75
60. 19
63.45
27
20.58 29.10
35.64
41.15
46. 01
50.40
54. 44
58. 20
61.73
65.07
28 21.08 29.81
36. 51
42.16
47. 14
51.64
55.77
59.62
63.24
66.66
29
21.58 30.52
37.38
43.16
48.25
52.86
57.09 61.04
64.74
68.24
30 22.07 31.22
38.23 | 44. 15
49.36
54.07
58.40
62.43
66. 22
69.80
31 22.56
32
33
23.04
23.52
34 23.99
31.91 39.08
32.59 39.91
45. 12
50.45
55.26
59. 69
63.81
67.68
71.34
46.09
51.53 56.44
60.97
65. 18
69.13
72.87
33.26 40.74 | 47.04
33.93
52.59 57.61
62.23
66. 53
70.56
74.38
41.56 47.99
53.65
58.77
63.48
67.86
71.98
75.87
35
36
24.46
24.93
34.59
35.25 43. 17
42.37
48.92 54.70
59.92
64.72❘ 69. 19
73.38
77.35
49.85 55.73
61.05
37 25.38
35.90
43.97
50.77
38 25.84
36.54 44.76
51.68
57.78
39 26.29
37.18 45.54
52.58
58.79
56.76 62.18
63.30
64.40
65.95 70.50
67.16
68.37 73.09
74.78
78.82
71.80
76. 15
80.27
77.52
81.71
69.56
74.36
78.87
83.14
40 26.74 37.81 46. 31
53.48
59.79 65.50 70.74
75.63 80.22
84.56
41 27.18
38.44 | 47.08
54.37
60.78
66.58
71.92
76.88 81.55
85.96
42 27.62 39.06 47.84
55.25
61.77
43 28.06 39.68 48.60
56. 12
62.74
67.66
68.73 74.24
73.08 78.13 82.87
87.35
79.37
84.18
88.73
44 28.49
40.30 49.35
56.99
63.71 69.79
75.39 80.59
85.48
90. 10
45 28.92
46
29.35
47
29.77
48
30. 19
42.70
40.90 50.10 57.85
41.51 50.84 58.70
42. 11 51.57 59.55
52.30 60.39
49
30. 61
43.29
53.02 61.23
64.67 70.85
65. 63 71.89
66.58 72.93
67.52 | 73.96
68.45 74.99
76.52 81.81
77.65
86.77
91.46
83.01
88.05
92.81
78.77 84.21 89.32
79.89
80.99
94.15
85.40 90.58
86.59 91.84
95.48
96.81
50
31.03
43.88
53.74 62.06
69.38 76.00
82.09 87.76 93.08 98.12
563189°-44- -33
506
HYDRAULIC TABLES
Table 41.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= -r2/31/2
n=.070

8
.00005 .00010.00015 | .00020 | .00025 | .00030 | .00035 | .00040 | .00045 | .00050
0.2
0.05
0.07
0.09 0.10
0.11
0.13
0.4
.08
0.14
0.15
.12
.14
0.15
0.16
.16
.18
20
0.6
·
.22
23
.11
.24
.15
.18
.26
.21
.24
0.8
.13
.18
. 26
.22
.26
.28
.30
.32
.34
.29
.32
•
.34
.37
.39
.41
1.0
.15
. 21
.26
.30
.34
.37
1.2
.40
.17
.42
.24
.45
.29
.34
. 47
.38
.42
1.4
.45
.19
.48
.27
.51
.33
.38
.54
.42
.46
1.6
21
. 29
.50
.53
.56
36
.41
.59
.46
1.8
.22
.50
.54
.31
.58
.38
.62
44
.65
•
.50
.54
.59
.63
.67
.70
2.0
24
•
.34
· 41
48
53
•
58
2.2
.25
•
.63
.67
71
.36
44
►
51
.57
·
75
2.4
.62
.67
.27
.72
.38
.76
.47
.54
.80
.60
2.6
.66
.71
28
.76
•
.40
.81
.49
.57
2.8
.30
· 63
.85
.70
.75
.80
42
.85
•
52
.90
•
.60
.67
.73
.79
.84
.89
.94
3.0
.31
.44
.54
. 62
.70
.76
3.2
.33
.83
.88
.46
.94
.56
.99
.65
.73
.80
3.4
.86
.34
.92
.48
.98
.59
1.03
.68
.76
.83
3.6
.35
.90
.96
.50
1.02
.61
.71
1.07
.79
.86
3.8
.37
.93
1.00
.52
1.06
.63
1.11
.73
.82
.90
.97
1.03
1.10
1.16
4.0 .38
53
.66
.76
.85
.93
4.2
1.00
.39
1.07
1.13
.55
.68
1.20
.78
.87
.96
1.03
4.4
1.11
.40
1. 17
.57
.70
1. 24
.81
.90
.99
4.6
1.07
.42
1. 14
1.21
.59
.72
1. 27
.83
.93
1.02
4.8
1.10
.43
1.17
.60
1.25
.74
1.31
.85
.96
1.05
1.13
1.21
1.28
1.35
5.0
.44
.62
.76
.88
.98
1.08
5.2
1.16
.45
1.24
64
1.32
•
.78
1.39
.90
1.01
5.4
1.10 1.19
.46
1.27
.65 .80
1.35
1.42
.92
1.03
1.13
5. 6
1.22
.47
.67
1.31 1.39
.82
1.46
.95
1.06
1.16
5.8
1.25
.48
1.34
.69
.84
1.42
1.50
.97
1.08
1.19
1.28 1.37
1.45
1.53
6.0
.50
.70
.86
.99
1.11
1. 21
6.2
1.31
.51
.72
1.40 1.49
.88
1.01
1.57
1.13
1.24
6. 4
1.34
.52
.73 .90
1.43 1.52
1.03
1.16
1.60
1.27
1.37
6.6
.53
1.46
.75
1.55
.91 1.06
1.64
1.18
1.29
6.8
1.40
.54
1.49
.76
1.58
.93 1.08
1.67
1.20
1.32
1. 43
1.52
1. 62
1.70
7.0
.55
.78
.95 1.10 1.23 1.35
7.5
1.45
.58
1.55
1.65
.81
1.00 1.15
1.74
1.29 1.41
8.0
1.52
.60
1. 63
.85 1.04
1.73
1.82
1.20
1.34 1.47
8.5
1.59
.63
1.70
.
.88
1.08
1.80
1.90
1.25
1.40
9.0
1.53 1.65
.65
1.77
.92
1.88
1. 12
1.30
1.98
1.45
1.59
1.72
1.84
1.95
2.05
9.5
2. 13
.67
1.90 2.02
.95
1.78
1.17
1.65
1.35 1.51
HYDRAULIC TABLES
507
Table 41.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.070—Continued

.00055
0070
.00060.00065
.00065.00070.00075.00080.00085 .09090.00095 .00100
|
T
0.2
0.17
0.18
0.19 0.19 0.20 0.21
0.21
0.22
0.22 0.23
0.4
.27
.28
.29 .30
.32
.33
.34
.35 .36
.36
0.6
.35
.37
.39
.40
.41
.43
.44
.45
.47
.48
0.8
.43
.45
.47
.48
.50
.52
.53
.55
.56
.58
1.0
.50
.52
.54
.56
.58
.60
.62
.64
.65
.67
1.2
.56
.59
.61
.63
.66
.68
.70
.72
.74
.76
1.4
.62
.65
.68
.70
.73
.75
.77
80
.82
.84
1.6
.68
.71
.74
.77
.80
.82
.85
.87
.90
.92
1.8
.74
.77
.80
.83
.86
.89
.92
.94
.97
.99
2.0
.79
.83
.86
.89
.92
.95
.98
1.01
1.04
1.07
2.2
.84
.88
.92
.95
.98
1.02
1.05
1.08
1.11
1.14
2.4
.89
.93
.97
1.01
1.04
1.08
1. 11
1.14
1. 17
1.20
2.6
.94
.98
1.02
1.06
1. 10
1. 14
1. 17
1.20
1. 24
1.27
2.8
.99
1.03
1.08
1. 12
1. 15
1. 19
1.23
1. 27
1.30
1.33
3.0
1.04
1.08
1. 13
1.17
1. 21
1.25
1.29
1. 32
1.36
1.40
3.2
1.08
1. 13
1. 18
1. 22
1.26
1.30
1.34
1.38
1. 42
1.46
3.4
1. 13
1. 18
1. 22
1. 27
1.31
1.36
1.40
1. 44
1.48
1.52
3.6
1. 17
1.22
1. 27
1.32
1.37 1.41
1.45
1.50
1.54
1.58
3.8
1.21
1.27
1. 32
1.37
1.42 1.46
1.51
1.55 1.59
1.63
4.0
1.25
1.31
1.36
1.42
1.46
1.51
1.56
1.60
1.65
1.69
4.2 1.30
1.35
1.41
1.46
1.51
1.56
1. 61 1.66
1.70
1.75
4.4
1.34
1.40 1.45
1.51
1.56 1.61
1.66
1.71
1.76
1.80
4.6
1.38
1.44
1.50
1.55
1.61
1.66 1.71
1.76
1.81
1.86
4.8
1.42
1.48
1. 54
1.60
1. 65
1.71 1.76
1.81
1.86
1.91
5.0
1.46
1.52
1. 58
1.64
1.70
1.76 1.81 1.86
1.91
1.96
5.2 1.49
1.56
1.62 1.69
1.74
1.80 1.86
1.91
1.96
2.01
5.4
1.53
1.60 1.67 1.73
1.79
1.85
1.90
1.96
2.01
2.07
5. 6
1.57
1.64
1.71 1.77
1.83
1.89
1.95
2.01
2.06
2.12
5.8
1.61
1.68
1.75
1.81
1.88
1.94
2.00
2.06
2. 11
2.17
6.0
1. 64
1.72
1.79
1.85
1.92
1.98
2.04
2. 10
2. 16
2.22
6.2
1.68
1.75 1.83
1.90
1.96 2.03
2.09
2.15
2. 21
2.27
6.4
1.72
1.79
1.87
1.94
2.00
2.07
2. 13
2.20
2. 26
2.31
6.6 1.75 1.83
1.90
1.98
2. 05
2.11
2. 18
2. 24
2.30
2.36.
6.8
1.79
1.87
1.94
2.02
2.09
2.16
2.22
2.29
2.35
2.41
7.0
1.82
1.90
1.98
2.06
2. 13
2.20
2.26 2.33
2.39
2.46
7.5 1.91
1.99
2.07
2.15
2.23 2.30
2.37 2.44
2.51
2.57
8.0
1.99
2.08
2. 16
2.25
2.33 2.40 2.48 2.55
2.62
2.69
8.5
2.07
2.17
2.25
2.34
2.42 2.50 2.58
2.65
2.73
2.80
9.0
2. 15
2.25
2.34
2. 43
2.52 2.60 2.68
2.76
2.83
2.90
9.5
3.01
2. 23
2.93
2.33
2.86
2. 43
2.78
2. 52
2.69
2. 61
508
HYDRAULIC TABLES
Table 41.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.070—Continued

8
.0010
.0015 .0020
.0025
.0030 .0035 .0040
.0045
.0050
0.2
0.23
0.28
0.32
0.36 0.40
0.43
0.46
0.49
0.51
0.4
.36
.45
.52
.58
.63
.68
.73
.77
.81
0.6
.48
.58
.68
.76
.83
.89
.96
1.01
1.07
0.8
.58
.71
.82
.91
1.00
1.08
1.16
1.23
1.29
1.0
.67
.82
.95
1.06
1.16
1.26
1.34
1. 42
1.50
1.2
.76
.93
1.07
1.20
1.31
1.42
1.52
1.61
1.70
1.4
.84
1.03
1.19
1.33
1.46
1.57
1.68
1.78
1.88
1.6
.92
1. 12
1.30
1.45
1.59
1.72
1.84
1.95
2.05
1.8
.99
1.22
1.40
1.57
1.72
1.86
1.99
2.11
2. 22
2.0
1.07
1.31
1.51
1.68
1.85
1.99
2.13
2.26
2.38
2.2
1. 14
1.39
1.61
1.80
1.97
2. 12
2.27
2.41
2.54
2.4
1.20
1.47
1.70
1.90
2.08
2.25
2.41
2.55
2.69
2.6
1.27
1.55
1.80
2.01
2.20
2.37
2.54
2.69
2.84
2.8
1.33
1.63
1.89
2.11
2.31
2.49
2.67
2.83
2.98
3.0
1.40
1.71
1.97
2.21
2.42
2.61
2.79
2.96
3. 12
3.2
1.46
1.79
2.06
2.30
2.52
2.73
2.92
3.09
3.26
3.4
1.52
1.86
2.15
2.40
2.63
2.84
3.04
3. 22
3.39
3.6 1.58
1.93
2.23
2.49
2.73
2.95
3. 15
3.34
3.53
3.8
1.63
2.00
2.31
2.58
2.83
3.06
3.27
3.47
3.66
4.0
1.69
2.07
2.39
2.67
2.93
3. 16
3.38
3.59
3.78
4.2 1.75
2. 14
2.47
2.76
3.03
3.27
3.50
3.71
3.91
4.4
1.80
2.21
2.55
2.85
3. 12
3.37
3.61 3.82
4.03
4.6
1.86
2.27
2.63
2.94
3. 22
3.47
3.71
3.94
4. 15
4.8
1.91
2.34
2.70
3.02
3.31
3.57
3.82
4.05
4. 27
5.0
1.96
2.40
2.78
3. 10
3.40
3.67
3.93
4. 16
4.39
5.2 2.01
2.47
2.85
3.19
3.49 3.77
4.03
4.27
4.51
5.4
2.07
2. 53
2.92
3.27
3.58
3.87
4. 13
4.38
4.62
5.6
2.12
2.59
2.99
3.35
3.67
3.96
4. 23
4.49
4.73
5.8
2. 17
2.65
3.06
3.43
3.75
4.05
4.33
4.60
4.85
6.0
2.22
2.71
3. 13
3.50
3.84
4. 15
4. 43
4.70
4.96
6.2
2. 27
2.77
3.20
3.58
3.92
4. 24
4.53
4.81
5.07
6.4
2.31
2.83
3.27
3.66
4.01
4.33
4.63
4.91
5. 17
6.6
2.36
2.89
3.34
3.73
4.09
4.42
4.72
5.01
5.28
6.8
2.41
2.95
3.41 3.81
4. 17
4.51
4.82
5.11
5.39
7.0
2.46 3.01
3.47
3.88
4. 25
4.60
4.91
5.21
5.49
7.5
2.57
3.15
3.64
4.07
4.46
4.81
5. 14
5.46
5.75
8.0 2.69
3.29 3.80
4. 25
4.65
5.02
5.37
5.70
6.00
8.5
2.80
3.42 3.95
4.42
4.84
5. 23
5.59
5.93
6.25
9.0
2.90
3.56
4.11
4.59
5.03
5. 43
5.81
6. 16
6.49
9.5
6.73
3.01
6.39
3.69 4.26
6.02
4.76
5.63
5.22
HYDRAULIC TABLES
509
Table 41.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
n=.070—Continued

8
.0055
.0060
.0065 .0070 .0075 .0080 .0085 .0090
.0095
.0100
0.2
0.54
0.56 0.59 0.61
0.63
0.65
0.67
0.69
0.71
0.73
0.4
.85
.89
.93 .96
1.00
1.03
1.06
1.09
1. 12
1.15
0.6
1.12
1.17
1. 22
1.26
1.31
1.35
1.39
1.43
1. 47
1. 51
0.8
1.36
1. 42
1. 47
1.53
1.58
1. 64
1.69
1.74
1.78
1.83
1.0
1.57
1. 64
1.71
1.78
1.84
1.90
1.96
2.01
2.07
2.12
1.2
1.78
1.86
1.93
2.01
2.08
2. 14
2. 21
2. 27
2.34
2.40
1.4
1.97
2.06
2. 14
2. 22
2.30
2.38
2. 45
2.52
2.59
2.66
1.6
2. 15
2.25
2.34
2. 43
2. 51
2.60
2. 68
2.76
2.83
2.90
1.8
2.33
2. 43
2.53
2.63
2.72
2.81
2.90
2.98
3.06
3. 14
2.0
2.50
2. 61
2.72
2.82
2.92
3.01
3. 11
3. 20
3. 28
3.37
2.2
2.66
2.78
2.90
3.00
3. 11
3. 21
3. 31
3. 41
3.50
3.59
2.4
2.82
2.95
3.07
3. 18
3.30
3.40
3. 51
3. 61
3.71
3.81
2.6
2.98
3. 11
3. 24
3.36
3.48
3.59
3.70
3.81
3.91
4. 01
2.8
3. 13
3. 27
3.40
3.53
3.65
3.77
3.89
4.00
4. 11
4. 22
3.0
3.27
3.42
3.56
3.69
3.82
3.95
4. 07
4. 19
4.30
4.42
3.2
3.42 3.57
3.72
3.86
3.99
4. 12
4. 25
4.37
4.49
4.61
3.4
3.56
3.72
3.87
4.02
4. 16
4. 29
4. 43
4.55
4. 68
4.80
3.6
3.70
3.86
4.02
4. 17
4. 32
4. 46
4.60
4.73
4.86
4.99
3.8
3.83
*4.00
4. 17
4. 33
4. 48
4.62
4.77
4.90
5.04
5. 17
4.0
3.97
4. 14
4. 31
4. 48
4.63
4.78
4.93
5. 07
5. 21
5. 35
4.2
4. 10
4. 28
4. 46
4. 62
4.79
4.94
5.09
5. 24
5.39
5. 53
4.4
4. 23
4. 42
4.60
4.77
4.94
5. 10
5. 26
5. 41
5. 56
5.70
4.6
4.35
4.55
4.73
4.91
5.08
5. 25
5. 41
5.57
5.72
5.87
4.8
4.48
4. 68
4.87
5. 05
5. 23
5.40
5.57
5.73
5.89
6.04
5.0 4.60
4. 81
5.00
5. 19
5.38
5.55
5.72
5.89
6.05
6. 21
5.2 4.73
4.94
5. 14
5.33
5.52
5.70
5.87
6. 04
6. 21
6.37
5.4 4.85
5.06
5. 27
5. 47
5.66
5.84
6.02
6. 20
6.37
6. 53
5.6
4.96
5. 19
5. 40
5.60
5.80
5.99
6. 17
6. 35
6. 52
6. 69
5.8
5.08
5. 31
5.52
5.73
5.93
6. 13
6.32
6.50
6.68
6.85
6.0 5.20
5. 43
5.65
5.86
6.07
6. 27
6. 46
6.65
6.83
7.01
6.2
5.31
5.55
5.78
5.99
6. 20
6. 41
6.61
6.80
6.98
7.16
6.4
5.43
5. 67
5.90
6. 12
6.34
6. 55
6.75
6. 94
7. 13
7.32
6.6
5. 54
5.79
6.02
6. 25
6.47
6.68
6.89
7.09
7.28
7.47
6.8
5.65
5.90
6. 14
6.37
6.60
6.82
7.02
7. 23
7.43
7.62
7.0 5.76
6.02
6. 26
6.50
6.73 6.95
7.16
7.37
7.57
7.77
7.5
6.03
6.30
6. 56
6.81
7.04 7.28
7.50
7.72
7.93
8. 13
8.0
6.30
6.58
6. 85
7.10
7.35
7.59
7.83
8.06
8. 28
8.49
8.5
6. 56
6.85
7. 13
7.40
7.66
7.91
8. 15
8.39
8.62
8.84
9.0
6.81
7.11
7.41
7.68
7.95
8. 22
8.47
8.71
8.95
9. 19
9.5
9.52
7.06
9.28
7.38
9.03
7.68
8.78
7.97
8.52
8. 25
510
HYDRAULIC TABLES
Table 41.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v=
2/31/2
n
n=.070—Continued

.01
.02
.03
04
.05
.06
.07
.08
.09
.10
0.2
0.73
1.03
1.26 1.45
1.62
1.78
1.92
2.05
2. 18
2.30
0.4
1. 15
1.63
2.00
2.30 2.58
2.82
3.05
3.26
3.46
3.64
0.6
1.51
2. 14
2.62
3.02
3.38
3.70
4.00
4. 27
4.53
4.78
0.8
1.83
2.59
3. 17
3.66
4.09
4.48
4.84
5. 17
5.49
5.79
1.0
1.2
1. 4
1.6
1.8
D&&& go
2. 12
3.00
3.68
4.25
4.75
5.20
5.62
6.00
6.37
6.71
2.40
3.39
4. 15
4.79
5.36
5.87
6. 34
6.78
7.19
7.58
2.66
3.76
4.60
5.31
5.94
6. 51
7.03
7.51
7.97
8.40
2.90
4. 11
5.03
5.81.
6.49
7.11
7.68
8. 21
8.71
9.18
3. 14
4.44
5. 44
6.28
7.02
7.69
8.31
8.88
9.42
9.93
2.0
3.37
4.77
5.84 6.74
7.54
8.25
8.92
9.53
10. 11
10.66
2.2
3.59
5.08
6.22
7.18
8.03
8.80
9.50
10.16
10.77
11.36
2.4
3.81
5.38
6.59
7.61
8.51 9.32
10.07
10.76
11. 42
12.03
4
2.6
4.01 5.68
6.95
8.03
8.98 9.83
10.62
11.35
12.04
12.69
2.8
4.22
5.96
7.30
8.43
9.43
10.33
11.16
11. 93
12.65
13. 34
3.0
4.42
6. 24
7.65
8.83
9.87
10.82
11.68
12.49
13.25
13.96
3.2
4.61
6. 52
7.98
9.22
10.31
11. 29
12.20
13.04
13.83
14.58
3.4
4.80
6. 79
8.31
9.60
10.73
11.76
12.70
13.58
14.40
15. 18
3.6 4.99
7.05
8.64 9.97
11.15
12. 21
13. 19
14. 10
14.96
15.77
3.8
5.17
7.31
8.95 10.34
11.56
12.66
13.68
14.62
15. 51
16. 35
4.0
5.35
7.57
9.27 10.70
11.96
13. 10
14,15 | 15. 13
16.05
16.92
4.2
5.53
7.82
9.57 11.05
12.36
13. 54
14.62
15. 63
16.58
17.48
4.4 5.70
8.06
9.87
11.40
12.75
13.96
15.08
16. 12 |
17. 10
18.03
4.6
5.87
8.30
10. 17
11.74
13. 13
14.38
15. 53
16. 61
17.61
18.57
4.8
6.04
8. 54
10.46
12.08
13. 51
14.80
15.98
17.09
18. 12
19. 10
5.0
6. 21
8.78
10.75
12.41
13.88
15.20
16.42
17.56
18.62
19. 63
5.2
6.37
9.01 11.04
12.74 14. 25
15. 61
16.86
18.02
19. 12
20. 15
5.4
6.53
9.24 11.32
13.07
14.61
16. 01
17.29
18.48
19.60
20.66
5. 6
6.69
9.47 11.60
13.39
14.97
16.40
17.71
18.93
20.08
21.17
5.8
6.85
9.69
11.87
13. 71
15. 32
16.79
18. 13
19.38
20.56
21.67
6.0
7.01
9.91
12. 14
14.02
15.67
17. 17
18.55
19.83
21.03
22.17
6.2
7.16
10. 13
12. 41
14.33
16.02
17.55
18.96 20.26
21.49
22.66
6.4
7.32
10.35
12.67
14.64
16.36
17.92
19.36 | 20.70
21.95
23. 14
6.6
7.47
10.56
12.94
14. 94
16.70
18.30
19.76
21. 13
22.41
23.62
6.8
7.62
10.78 13.20 15. 24
17.04
18.66
20.16
21.55
22.86
24.09
7.0
7.77
10.99
13.45
15.54
17.37
19.03
20.55
21.97 23.30 24.57
7. 5
8. 13
11.50
14.09
16. 27
18. 19
19.92 | 21. 52
23.01 24.40 25.72
8.0
8.49
12.01
14.71
16.98
18.99
8.5 8.84
12,50
15. 31
9.0 9.19
12.99
15.91
20.80 22.47 24.02 25.47 26.85
17.68 19.77 21.66 23.39 25.01 26.52 27.96
18.37 20.54 22,50 24.30 25.98
27.56
29.05
9.5
30. 11
9.52
28.57
13.47 16.49
26.93
19.04 21.29 23.32
25. 19
HYDRAULIC TABLES
511
Table 41.-Velocity of water, v, in feet per second, based on
8
.00005
1.486
n
Manning's formula v= r2/3g1/2
n=.070—Continued


.00010 .00015 .00020.00025.00030.00035.00040.00045 | .00050
|
10
11
12
15
16
17
18
19
21
23
24
26
27
29
32
CERII 49222 22222 32582 A-88 88-88 ***** ***** *
0.70
0.99
1. 21 1.39 1.56 1.71 1.84 1.97 2.09 2.20
.74
1.05
1.29
1.48
1.66 1.82 1.96 2.10
2.23
2.35
.79
1.11
1.36
1.57
1.76 1.93
2.08
2.23
2.36
2.49
.83
1.17
1.44
1.66
1.86
2.03
2.20
2.35
2.49
2.62
.87
1.23
1. 51
1.74
1.95
2. 14
2.31
2.47
2.62
2.76
.91
1.29
1.58
1.83
2.04
2. 24
2.42
2.58
2.74
2.89
.95
1.35
1. 65
1.91
2.13
2. 33
2.52
2.70
2.86
3. 01
.99
1.40
1.72
1.98
2.22
2. 43
2.63
2.81
2.98
3. 14
1.03
1.46
1.79
2.06
2.31
2, 53
2.73
2.92
3.09
3.26
1.07
1.51
1.85
2. 14
2.39
2.62
2.83
3.02
3. 21
3.38
20 1. 11
1.56
1.92
2. 21
2.47
2.71
2.93
3. 13
3. 32
3.50
1. 14
1.62
1.98
2. 29
2.55
2.80
3.02
3. 23
3. 43
3. 61
1. 18
1.67
2.04
2.36
2. 64
2.89
3. 12
3. 33
3. 54
3.73
1. 21
1.72
2.10
2.43
2.71
2.97
3. 21
3.43
3. 64
3.84
1.25
1.77
2.16
2.50
2.79
3.06
3.30
3. 53
3.75
3.95
1.28
1.82
2. 22
2.57
2.87
3. 14
3.40
3.63
3.85
4.06
1.32
1.86
2.28
2.63
2.95
3. 23
3.49
3.73
3.95
4.17
1.35
1.91 2.34
2.70
3.02
3.31
3.57
3.82
4. 05
4. 27
1.38 1.96 2.40
2.77
3.10
3.39
3.66
3.91
4. 15
4. 38
1.42 2.00
2.45
2.83
3.17
3. 47
3.75
4. 01
4. 25
4. 48
30
1.45
2.05
2.51
2.90 3.24
3.55
3.83
4. 10
4. 35
4.58
31
1.48
2.09
2. 57
2.96
3.31 3.63
3.92
4. 19
4.44
4.68
1. 51
2.14
2.62
3.03
3.38
3.71
4.00
4. 28
4.54
4.78
33
1.54
2.18
2.67
3.09
3.45
3.78
4.09
4.37
4. 63
4.88
1.58
2. 23
2.73
3. 15
3.52
3.86
4. 17
4.46
4.73
4.98
35 1.61
2.27
2.78
3. 21
3.59
3.93
4. 25
4. 54
4.82
5.08
36
1.64
2. 31
2.83
3.27
3.66
4. 01
4. 33
4. 63
4.91
5. 18
37 1.67
2.36
2.89 3.33
3.73
4.08
4.41
4.71
5.00
5.27
38
1.70
2.40
2.94 3.39
3.79
4. 16
4.49
4.80
5.09
5.37
39
1.73
2. 44
2.99 3.45
3.86
4. 23
4. 57
4.88
5. 18
5.46
40
1.76
2.48
3.04
3.51
3.93
4.30
4. 65
4.97
5. 27
5.55
41
1.78 2.52
3.09
3. 57
3.99
4.37
4.72
5.05
5.35
5.64
42
1.81
2.56
3.14
3.63
4.06
4.44
4.80
5. 13
5. 44
5.74
43 1.84 2.61
3.19
3.68
4. 12
4. 51
4.87
5.21
5.53
5.83
44
1.87 2.65
3. 24
3.74
4. 18
4.58
4.95
5. 29
5.61
5.92
45 1.90
2.69
3.29
3.80
4. 25
4.65
5. 02
5.37
5.70
6. 01
46
1.93 2.73 3.34
3.85
4.31
4.72
5.10
5.45 5.78
6.09
47 1.95 2.76 3.39
3.91
4.37
4.79
5.17
5.53
5.86
6.18
48
1.98
2.80 3.43
3.97
4. 43
4.86
5. 25
5.61
5.95
6.27
49
2. 01
2.84 3.48 4. 02
4.49
4.92
5.32
5.69
6.03
6.36
50
2.04
2.88
3.53 4.07
4.56
4.99 5.39
5.76
6. 11
6. 44
512
HYDRAULIO TABLES
Table 41.-Velocity of water, v, in feet per second, based on
.00055
1.486
N
Manning's formula v= r2/31/2
n=.070—Continued

0080
.00060.00065.00070.00075.00080 | .00085.00090.00095 .00100
|
PERII BR===
10
2.31
2.41 2.51
2. 61 2.70 2.79
2.87
2.96
3.04
3. 12
11 2.46
2.57 2.68
2.78
2.88
2.97
3.06
3. 15
3. 24
3.32
12
2.61
2.73
2.84
2.94
3.05
3. 15
3. 24
3.34
3.43
3.52
13
2.75
2.87
2.99
3. 11
3. 21
3.32
3.42
3.52
3.62
3.71
14
2.89
3.02
3. 14
3.26
3.38
3.49
3.60
3.70
3.80
3.90
15
3.03
3.16
3.29
3.42
3. 54
3.65
3.76
3.87
3.98
4.08
16
3.16
3.30
3. 44
3.57
3.69
3.81
3.93
4.04
4. 15
4. 26
17
3.29
3.44
3.58
3.71
3.84
3.97
4.09
4. 21
4.33
4. 44
18
3.42
3.57
3.72
3.86
3.99
4. 12
4. 25
4.37
4.49
4.61
19
3. 54
3.70
3.85
4.00
4. 14
4.28
4. 41
4.53
4. 66
4.78
20
3.67
3.83
3.99
4. 14
4. 28
4. 42
4. 56
4. 69
4.82
4.95
21
3.79
3.96
4. 12
4. 28
4.43
4. 57
4.71
4.85
4.98
5. 11
22
3.91
4.08
4. 25
4. 41
4.56
4.71
4.86
5.00
5. 14
5. 27
23
4.03
4. 21
4.38
4.54
4.70
4.86
5.01
5.15
5.29
5.43
24
4. 14
4. 33
4.50
4.67
4. 84
5.00
5. 15
5.30
5. 44
5.59
26
28
29
30
KARAR A-88 88-88
25
4.26
4.45
4. 63
4.80
4.97
5. 13
5. 29
5. 45
5.59
5. 74
4.37
4.56
4.75
4.93
5. 10
5. 27
5. 43
5. 59
5.74
5.89
27
4. 48
4.68
4.87
5. 05
5. 23
5. 40
5.57
5. 73
5. 89
6.04
4.59
4.79
4.99
5. 18
5.36
5. 54
5. 71
5.87
6.03
6. 19
4.70
4.91
5. 11
5.30
5.49
5.67
5.84
6.01
6. 18
6.34
4.81
5.02
5.23
5. 42
5.61
5.80
5.98
6. 15
6.32
6.48
31
4.91
5. 13
5.34
5. 54
5.74
5.93
6. 11
6.28
6.46
6.62
32
5.02
5. 24
5.46
5.66
5.86
6.05
6. 24
6.42
6.60
6.77
33
5. 12
5.35
5.57
5.78
5.98
6. 18
6.37
6.55
6.73
6.91
34
5. 23
5.46
5.68
5.89
6.10
6.30
6.50
6.68
6.87
7.05
35
5.33
5.56
5.79
6.01
6.22
6.42
6.62
6.81 7.00
7. 18
36
5.43
5.67 5.90
6. 12
6.34
6.55
6.75
6.94 7.13
7.32
37 5.53
5.77
6.01
6. 24
6.46
6. 67
6.87
7.07
7.27
7.45
38
5.63 5.88
6. 12
6.35
6.57
6.79
7.00
7.20
7.40 7.59
39 5.73
5.98
6. 22
6.46
6.69
6.91
7.12
7.32
7.52
7.72
40
5.82
6.08
6. 33
6.57
6.80
7.02
7.24
7.45
7.65
7.85
41
5.92
6. 18
6.44
6.68
6.91
7.14
7.36
7.57 7.78
7.98
42
6.02
6.28
6.54
6.79
7.02
7.25
7.48 7.69
7.91
8. 11
43
6. 11
6.38
6. 64
6.89
7. 14
7.37
7.60 7.82
8.03
8.24
44
6. 20
6.48
6.75
7.00
7.25
7.48
7.71
7.94
8. 15
8.37
45
6.30
6.58
6.85
7.11
7.36 7.60 7.83
8.06
8.28
8.49
46
6. 39
6.68
6.95
47
6.48
6. 77
48
6. 58
6.87
7. 15
49
6.67
6.96
7.25
7.21 7.46
7.71 7.95
7.05 7.31 7.57 7.82 8.06
7.42 7.68 7.93
7.52 7.78 8.04
8. 18
8.40
8.62
8.29
8.52
8.74
8.17
8.41 8.64
8.87
8.29
8.53
8.76
8.99
50 6.76
9. 11
7.06
8.88
7.35 7.62
8.64
7.89
8.40
8. 15
HYDRAULIC TABLES
513
Table 41.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.070—Continued

8
.0010
.0015
.0020
.0025 .0030
.0035
.0040
.0045
.0050
T
10
11
12
18
15
16
17
18
19
20
21
23
28
PIRRI 42292 2228* *RRRR SHA** ****8 SE*** 98599
3. 12
3.82
4.41
4.93 5.40
5.83
6. 23
6. 61
6.97
3.32
4.07
4.70
5.25
5.75
6. 21
6.64
7.01
7.42
3.52
4.31
4.98
5.56
6.09
6.58
7.04
7.46
7.87
3.71
4.55
5.25
5.87
6.43
6.94
7.42
7.87
8.30
14
3.90
4.78
5.51
6.17
6.75
7.30
7.80
8.27
8.72
4.08
5.00
5.77
6. 46
7.07
7.64
8.17
- 8.66
9.13
4. 26
5. 22
6.03
6.74
7.38
7.97
8.53
9.04
9.53
4.44
5. 44
6. 28
7.02
7.69
8.30
8.88
9.42
9.92
4.61
5. 65
6.52
7.29
7.99
8.63
9.22
9.78
10.31
4.78
5.85
6.76
7.56
8.28
8.94
9.56
10. 14
10.69
4.95
6.06
7.00
7.82
8.57
9.25
9.89
10.49
11.06
5. 11
6. 26
7.23
8.08 8.85
9.56
10. 22
10.84
11.43
5.27
6.46
7.45 8.33
9.13
9.86
10.54
11. 18
11.79
5.43
6.65
7.68
8.58
9.40
10.16
10.86
11.52
12. 14
24
5.59
6.84
7.90 8.83
9.67
10. 45
11. 17
11.85
12.49
25
5.74
7.03
8.12
9.08
9.94
10.74
11.48
12. 18
12.83
26
5.89
7.22
8.33
9.32
10. 20
11.02
11.78
12.50
13. 17
27
6.04
7.40
8.54
9.55
10.46
11.30
12.08
12.82
13. 51
6. 19
7.58
8.75
9.79
10. 72
11.58
12.38
13. 13
13.84
29
6.34
7.76
8.96 10.02
10.98
11.85
12.67
13.44
14. 17
30
6.48
7.94
9.17 10.25
11.23
12. 13
12.96
13.75
14.49
31
6.62 8.11
9.37
10.47
11.47
12. 39
13. 25
14.05
14.81
32
6.77 8.29 9.57
10.70
11.72
12.66
13.53
14.35
15. 13
33
6.91
8.46 9.77
10.92
11.96
12.92
13.81
14.65
15. 44
34
7.05
8.63
9.96
11. 14
12. 20
13. 18
14.09
14.95
15.75
35
7.18
8.80
10.16
11.36
12. 44
13. 44
14.37
15. 24
16.06
36
7.32
8.96
10.35
11.57
12. 68
13. 69
14. 64
15.53
16.37
37
7.45
9. 13
10.54
11.79
12.91
13.95
14.91
15. 81
16.67
38
7.59
9.29
10.73
12.00
13. 14
14. 20
15. 18
16. 10
16.97
39
7.72
9.46
10.92
12. 21
13.37
14.44
15.44
16.38
17.26
40
7.85
9.62
11.10
12.41
13.60
14.69
15.70
16.66
17.56
41
7.98
9.78
11.29
12.62
13.83
14.93
15.96
16. 93
17.85
42
8. 11
9.93
11.47
12.82
14.05
15. 17
16.22
17.21
18. 14
43
8.24 10.09
11.65
13.03
14. 27
15. 41
16.48
17.48
18.42
44
8.37
10.25
11.83
13.23
14.49
15.65
16.73
17.75
18.71
45
8.49
10.40
12. 01
13.43
14.71
15.89
16.99
18.02
18.99
46 8.62 10.56
12. 19
13. 63
14.93
16. 12
17.24
18.28
19.27
47 8.74 10.71
12.36
13.82
15. 14
16. 36
17.49
18.55
19.55
48 8.87 10.86
12. 54
14.02
15.36
16.59
17.73 18.81
19.83
49 8.99 11.01 12. 71
14. 21
15.57
16.82
17.98
19.07
20.10
50
20.37
9.11 11.16 12.88
19.33
14.41
18. 22
15.78
17.05
514
HYDRAULIC TABLES
Table 41.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.070—Continued



.0055
.0060
.0065
.0070 .0075
.0080
.0085 .0090 .0095
.0100
10
7.31
7.63
7.94
8. 24
8.53
11
7.79
8.13
8.47
8.78
9.09
12
8.25 8.62
8.97
9.31
9.64
8.81 9.08 9.35 9.60 9.85
9.39 9.68
9.96
9.95 10.26 10.56
10.23
10.50
10.85
11. 13
13
8.70
9.09
9.46
9.82
10. 16
10.50
10.82 11.13
11.44
11.74
14
9.15
9.55
9.94 10.32
10.68
11.03
11.37
11.70 12.02
12.33
២២២២២
15
9.58
10.00
10.41 10.80
11.18
11.55
11.90
12.25
12.58
12. 91
16
10.00
10.44
10.87 11.28
11.67
12.06
12.43
12. 79
13. 14
13.48
17
10.41
10.87
11.32 11.74
12.15
12.55
12.94
13.32
13.68
14.04
18
10.81
11.29
11.76
12.20
12. 63
13.04
13. 44
13.83
14. 21
14.58
19
11. 21
11.71
12.19
12.65
13.09
13. 52
13.94
14. 34
14.73
15.12
20
11.60
12. 12
12.61
13.09
13. 55
13.99
14.42
14.84 15.25
15.64
21
11.98
12.52
13.03
13.52
13.99
14.45
14.90
15.33
15.75 16.16
T N N
22
12.36
12.91
13. 44
13.94
14.43
14.91
15. 37
15.81
16.25
16.67
23
12.73
13.30
13.84
14.36
14.87
15.36
15.83
16.29 16.73
17.17
24
13. 10
13.68
14. 24
14.78
15.30
15.80
16.28
16.76
17.22
17.66
25
13.46
14.06 14.63
15. 19
15.72
16. 23
16.73
17.22
17.69
18.15
26
13.82
14.43
15.02
15.59
16. 13
16.66
17.18
17.67
18. 16
18.63
27
14. 17
14.80
15.40
15.98
16. 55
17.09
17.61
18. 13
18.62
19.11
28
14.52
15. 16
15.78
16.38
16.95
17.51
18.05
18.57
19.08
19.57
29
14.86
15.52
16. 16
16.76
17.35
17.92
18.47
19.01 19.53
20.04
30
15.20
15.88 16.52
17.15
17.75
18.33
18.90
19.44 19.98
20.50
31
15.54
16.23 16.89
17.53
18. 14
18.74
19.31
19.87 20.42
20.95
32
15.87
16.57 17.25
17.90
18.53
19. 14
19.73
20.30
20.86
21.40
33 16.20
16.92 17.61
18.27
18.91
19.53
20. 14
20.72
21.29
21.84
34
16.52
17.26 17.96
18.64
19.29
19.93
20.54
21. 14
21.72
22.28
35
16.85
36 17.16
17.59 18.31
17.93 18.66 19.36
19.00
19. 67
20.32
20.94 21.55
22.14
22.71
20.04
20.70
21.34 21.96
22.56
23. 14
37
17.48
18.26 19.00
19.72
20. 41
21.08 21.73
22.36
22.97
23.57
38
17.79
18. 59
19.34 20.08
20.78
21.46
22.12
22.76
23.39
23.99
39
18. 11
18.91
19.68 20.43
21.14
21.84
22.51
23. 16
23.80
24. 41
40
18. 41
19. 23
20.02 20.77
21.50
22.21
22.89
23.55
24.20
24.83
41
18.72
19.55
20.35
21.12 21.86
22.58
23. 27
23.95
24.60
25. 24
42
19.02
19.87
20.68
21.46 22.21
22.94
23.65
24.33
25.00
25.65
43
19.32
20. 18 21.01
21.80 22.56
23.30
24.02
24. 72
25.40
26.06
44
19.62
20.49
21.33
22.14 22.91
23.66
24.39
25. 10
25. 79
25.79
26.46
45
19.92
20.80 21.65
22.47
23.26
24.02
24.76
25. 48
26.18
26.86
46
20. 21
47
20.50
48 20.79
21.11 21.97
21.42 22.29 23.13
21.72 22.61 23.46
22.80
23.60
24.38
25.13
25.86
26.56
27.25
23.94 24.73
25.49
26. 23
26.95
27.65
24.28 25.08
25.85
26.60
27.33
28.04
49 21.08
22.02 22.92 23.78
24.62 25.43
26. 21
26.97
27.71
28.43
50 21.37
28.81
22.32 23.23 24. 11
28.08
24.95 | 25. 77
26.56 27.33
HYDRAULIC TABLES
515
Table 41.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.070—Continued

.01
.02
.03
.04
.05
.90
.07
.08
.09
.10
T
28
SIRII ===== 222** *RRRR
10
9.85
13.93
17.07
19.71 22.03
24. 14 26.07
27.87
29.56
31. 16
11
10.50
14.85
18. 19
21.00
23.48
25.72 27.78
29.70
31.50
33.20
12
11. 13
15. 74
19. 27
22.25
24.88
27.26
29.44
31.47
33.38
35. 19
13
11.74
16. 60
20.33
23.47
26. 24
28.75
31.05
33.20
35. 21
37. 12
14
12.33
17.44
21.36
24.66
27.57
30. 21
32.63
34.88
36.99
38.99
15
12.91
18. 26
22.36
25.82
28.87
31.63
34. 16
36.52
38. 73
38.73
40.83
16
13.48
19.06
23.35
26.96
30. 14 |
33. 02
35.66
38. 13
40. 44
42. 63
17 14.04
19.85
24. 31
28.07
31.38
34.38
37. 13
39.70
42. 11
44.38
18
14.58
20. 62
25. 25
29. 16
32.60
35. 71
38.58
41. 24
43.74
46. 11
19
15. 12
21.38
26. 18
30.23
33.80
37.03
39.99
42.75
45.35
47.80
20
15.64
22. 12
27.09
31.28
34.98
38.31 41.38
44. 24
46.92
49.46
21
16. 16
22.85
27.99
32.32
36. 13
39.58
42.75
45.70
48.48
51. 10
16. 67
23. 57
28.87
33.33
37.27
40.83
44. 10
47. 14
50.00
52.71
23
17. 17
24. 28
29.74
34.34
38.39
42.05
45.42
48.56
51. 51
54. 29
24
17.66
24.98
30.59
35.33
39.50
43. 27
46.73
49.96
52.99
55.85
25
26
18. 15
25. 67
31.44
36.30
40.59
44.46
48.02
51. 34
54.45
57.40
18.63
26. 35
32. 27
37.26
41.66 45.64 49.29
52.70
55.89
58.92
27
19. 11
27.02
33.09
38. 21
42.72
46.80
50.55
54.04
57.32
60.42
19. 57
27.68
33.90
39. 15
43.77
47.95
51.79
55.37
58.72
61.90
29
20.04
28.34
34. 71
40.08
44.81 49.08
53.02
56.68
60. 11
63.37
30
20.50
28.99
35.50
40.99
45.83 50.20
54.23
57.97
61.49
64.81
31 20.95 29.63
36. 28
41.90 46.84
51.31
55.43
59.25
62.85
66. 25
32 21.40 30.26
37.06
42.79
47.85
52.41
56. 61
60.52
64. 19
67.66
33 21.84
30.89
37.83
43.68 48.84
53.50
57.78
61. 77
65. 52
69.07
34
22.28
31. 51
38.59
44.56
49.82
54.57
58.95
63.02
66.84
70.45
35
22.71
32. 12
39.34
45. 43
50.79
55. 64
60. 10
64.25
68. 14
71.83
36
23. 14
32.73
40.09
46.29
51.75
56.69
61. 24
65.46
69.43
73. 19
37
23.57
33. 34
40.83
47. 14
52.71
57.74
62.36
66.67
70.71
74.54
38
23.99
33.93
41. 56
47.99
53.65
58.77 63.48
67.87
71.98
75.88
39
24. 41
34.53
42. 29
48.83 54.59
59.80
64.59
69.05
73. 24
77.20
40
24.83
35. 11
43. 01
49.66
55. 52
60.82 65.69
70.23 74.49
78.52
41
25. 24
35.70
43.72
50.48
56.44
61.83
66.78 71.39
75.72
79.82
42
25.65
36. 27
44.43
51.30
57.36
62.83
67.86 72.55
76.95
81. 11
43 26.06
36.85
45. 13
52. 11
58. 26
63.82.
68.94
73.70
78. 17
82.39
44 26.46
37.42
45.83
52.92
59.16
64.81
70.00 74.83
79.37
83.67
45
26.86
37.98
46. 52
53.71
60.05
65. 79
71.06
75.96
80.57
84.93
46
27.25
38. 54
47.20
54.51
60.94
66. 76
72. 11
77.09
81. 76
86. 18
47 27.65
39. 10
47.89
55.29 61.82
67.72
73. 15
78.20
82.94
87.43
48 28.04
39.65
48. 56
56.08 62.70 68.68
74. 18
79.30
84. 11
88.66
49
28.43
40.20
49.24
56.85 63.56
69.63
75. 21
80.40
85.28
89.89
50
91. 11
28.81
81.49 86. 43
40.75 49.90
76.23
57.62 | 64.42
70.57
516
HYDRAULIC TABLES
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.075
.00005 | .00010 | .00015 00020 .00025.00030.00035.00040.00045.00050
:

0.2
0.05
0.07 0.08
0.10
0.11
0.12
0.13
0.4
.08
0.14
.11
. 13
0.14
0.15
.15
.17
.19
20
0.6
.10
•
.22
.23
.14
.17
0.8
· 20
.24
.22
24
•
.26
.28
.12
.17
.30
.21
.24
.32
.27
.30
.32
.34
.36
.38
1.0
.14
.20
.24
.28
.31
.34
1. 2
.37
40
.16
.22
.27
.42
44
.32
·
.35
.39
.42
1.4
.45
.18
.47
.25
30
.50
35
•
.39
.43
1.6
.46
.19
.50
.53
.27
.33
.55
.38
.43
.47
1.8
.51
.54
.21
•
.57
.29
.36
.61
.41
.46
.51
.55
.59
.62
.66
2.0
.22
•
31
.39
.44
2.2
.50
. 54
.24
.34
. 59
.63
.41
.47
.67
.70
53
58
·
2. 4
•
.63
.25
.36
.43 .50
.67
.71
.75
:56
.62
2.6
.66
.26
.37
.46
.71
.75
.79
.53
.59
.65
2.8
.70
.28
.39
.48
.75
.79
.84
.56
.62
.68
.74
.79
.83
.88
3.0
29
41
.50
.58
.65
.71
.77
3.2
.30
.82
.43
.87
.53
.61
.68
.92
.75
.80
3. 4
.32
.86
.91
.45
.96
.55
.63
.71
.78
3.6
. 33
.84
.47
.57
.90 .95
.66
1.00
.74
.81
3.8
.87
.34
.48
.59 .68
.93 .99
1.04
.76
.84
.90
.96
·
1.02
1.08
4.0
.35
.50
.61
.71
.79
.86
4.2
.93
.36
1.00
.52
1.06
.63
1.12
.73
.82
.89
4.4
.96
.38
1.03
.53
1.09
.65
1.15
.75
.84
.92
4. 6
1.00
1.06
.39
1. 13
.55
.67
1. 19
.78
.87
.95
4.8
.40
1.03
1.10
.56
1.16
.69
1.23
.80
.89 .98
1.05
1. 13
1.20
1.26
5.0
.41
58
•
.71
.82
.92
1.00
5.2
1.08
42
1.16
.59
73 .84
1.23
1.30
.94
•
1.03
1. 11
5.4
.43
1. 19
.61
.75 .86
1.26
1.33
.96
1.06
5.6
1.14
. 44
1. 22
.62
1.29
.77
1.36
.88
.99
1.08
5.8
1.17
.45
1.25
.64
1.33
.78
1.40
.90
1.01
1. 11
1.20
1.28
1.36
1.43
6.0
.46
.65
·
80 .93
1.03
1. 13
1. 22
6. 2
.47
1.31
•
.67
1.39
.82
1.46
.95
1.06
1. 16
1.25
6. 4
1.34
.48
1.42
68
·
.84
1.50
.97
1.08
1.18
1.28
6.6
.49
.70
1.37
1. 45
.85
.99
1.53
1. 10
1. 21
6.8
1.30
.50
1.39
.71
1.48
87
1.56
1.01
1.12
1.23
1.33
1. 42
1.51
1.59
7.0
.51
.73
.89
1.03
1.15
1.26
7.5
1.36
.54
1.45
.76
1.54
.93
1.62
1.07 1.20
8.0
1.31 1.42
1.52
.56
.79
1.61
.97
1.70
1.12 1.25
8.5
.58
.83
1.37 1.48 1.59 1.68
1.01
1.77
1.17 1.30
9.0
.61
1.43 1.54 1.65
1.75
.86
1.05
1. 21
1.85
1.36 1.48
1.60 1.71
1.82
1.92
9.5
1.99
.63
1.89
.89
1.78
1.09
1.66
1.26
1.54
1.41
HYDRAULIC TABLES
517
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.075—Continued

|
.00055 .00060.00065 |
.00065 00070.00075.00080.00085.00090.00095 .00100
0.2
0.16
0.17 0.17 0.18
0.19 0.19
0.20 0.20
0.21
0.21
0.4
.25
.26
.27 .28
.29
.30
.31
.32
.33
.34
0.6
.33
.35
.36
.37
.39
.40
.41
.42
.43
.45
0.8
40
•
.42
.44
.45
.47
.48
.50
.51
.53
.54
1.0
.46
.49
.51
.52
.54
.56
.58
.59
.61
.63
•
1.2
.52
.55
.57
.59
.61
.63
.65
.67
.69
.71
1.4
.58
.61
.63
.66
.68
.70
.72
.74
.76
.78
1.6
.64
.66
.69
.72
.74
.77
.79
.81
.84
.86
1.8
.69
.72
.75
.78
.80
.83
.85
.88
.90
.93
2.0 .74
.77
.80
.83
.86
.89
.92
.94
.97
.99
2.2
.79
.82
.85
.89
.92
.95
.98
1.01
1.03
1.06
2.4
.83
.87
.91
.94
.97 1.00
1.04
1.07
1.09
1.12
2.6
.88
.92
.96
.99
1.03
1.06
1.09
1. 12
1. 15
1.18
2.8
.92
.96
1.00
1.04
1.08
1.11
1. 15
1.18
1.21
1.24
3.0
.97
1.01
1.05
1.09
1.13
1. 17
1.20
1.24
1.27
1.30
3.2
1.01
1.05
1. 10
1. 14
1.18
1.22
1.25
1.29
1.33
1.36
3.4
1.05
1.10
1.14
1.19
1.23
1.27
1.31 1.34
1.38
1.42
3.6
1.09
1. 14
1. 19
1.23
1.27 1.32
1.36
1.40
1.43
1.47
3.8
1. 13
1. 18
1.23
1.28
1.32 1.36
1.41
1.45 1.49
1.53
4.0
1. 17
1. 22
1. 27
4.2
1. 21
1.26
1.31
4.4
1.25
1.30
1.32 1.37 1.41
1.36
1.36 1.41 1.46 1.50
1.46 1.50
1.54
1.58
1.41 1.46
1.50 1.55 1.59
1.63
1.55 1.60
1.64
1.68
4.6
1.29
1.34
1.40
1.45
1.50
1.55
1.60
1.64
1.69
1.73
4.8
1.32
1.38
1. 44
1.49
1.54
1.59 1.64
1.69
1.74
1.78
ம்ம்ம்ம்
5.0
1.36
1.42
1.48 1.53
1.59
1.64
1.69 1.74
1.79
1.83
5.2
1.39
1.46
1.52
1.57
1.63 1.68
1.73 1.78
1.83
1.88
5.4
1.43
1.49 1:55
1.61
1.67 1.72
1.78
1.83
1.88
1.93
5.6
1.47
1.53 1.59
1.65
1.71 1.77
1.82
1.87
1.93
1.98.
5.8
1.50
1.57
1.63
1.69
1.75
1.81
1.86 1.92
1.97
2.02
6.0
1.53
1.60
1.67
1.73
1.79
1.85
1.91
1.96 2.02
2.07
6.2 1.57
1.64
1.70
1.77
1.83
1.89 1.95
2.01
2.06
2.11
6.4 1.60
1.67
1. 74
1.81
1.87 1.93
1.99
2.05
2. 11
2. 16
6.6 1.63 1.71
1.78
1.84 1.91
1.97
2.03
2.09
2.15
2.20
6.8
1.67
1.74
1.81
1.88 1.95
2.01
2.07
2. 13
2. 19
2.25
7.0 1.70 1.78
1.85
1.92
1.99
2.05
2. 11
2. 18
2. 23
2.29
7.5 1.78
1.86 1.94
2.01
2.08
2. 15
2.21
2. 28
2. 34
2.40
8.0 1.86 1.94
2.02
2. 10
2.17
2.24
2.31
2.38
2.44
2.51
8.5 1.94
2.02
2. 10
2. 18
2.26
2.33
2. 41
2.48
2.54
2. 61
9.0 2.01
2.10
2. 19
2.27
2.35
2.42
2.50
2.57
2. 64
2.71
9.5 2.08
2.81
2.18
2.74
2.27
2.67
2.35 2.43 2.51
2.59
518
HYDRAULIC TABLES
Table 42.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
=.075—Continued

.0010 .0015 .0020 .0025 .0030 .0035 .0040 .0045
.0050
T
0.2
0.21
0.26
0.30 0.34
0.37
0.40 0.43
0.45
0.48
0.4
.34
.42
.48
.54
.59
.64
.68
.72
.76
0.6
.45
.55
.63
.70
.77
.83
.89
.95
1.00
0.8
54
.66
.76
.85
.94
1.01
1.08
1.15
1.21
1.0
1.2
1.4
1.6
1.8
∞ — 20-
.63
.77
.89
.99
1.09
1.17
1.25
1.33
1.40
.71
.87
1.00
1. 12
1.23
1.32
1.42
1.50
1.58
.78
96
1. 11
1. 24
1.36
1.47
1.57
1.66
1.75
•
.86
1.05
1.21
1.36
1.48
1.60
1.71
1.82
1.92
.93
1. 14
1.31
1.47
1.61
1.73
1.85
1.97
2.07
2.0
99
1.22
1.41
1.57
1.72
1.86
1.99
2.11
2.22
•
2.2
1.06
1.30
1.50
1,68
1.84
1.98
2. 12
2.25
2.37
2.4
1. 12
1.38
1.59
1.78
1.95
2.10
2.25
2.38
2, 51
2.6
1.18
1.45
1.68
1.87
2,05
2.22
2.37
2. 51
2.65
2.8
1,24
1.52
1.76
1.97
2.16
2.33
2.49
2.64
2.78
3.0
1.30
1.60
1.84
2.06
2,26
2.44
2.61
2.76
2.91
3.2
1.36 1.67
1.92
2. 15
2.36
2.55
2.72
2.89
3.04
3.4
1.42
1.74
2.00
2. 24
2.45
2,65
2.83
3. 01
3.17
3.6
1.47
1.80
2.08
2.33
2. 55
2.75
2.94
3. 12
3.29
3.8
1.53
1.87
2.16
2. 41
2.64
2.85
3.05
3. 24
3. 41
4.0
1.58
1.93
2. 23
2.50
2.73
2.95
3. 16
3.35
3.53
4.2
1.63
2.00
2.31
2.58
2.82
3.05
3.26
3. 46
3.65
4.4 1.68
2.06
2.38
2.66
2.91
3. 15
3.36
3. 57
3.76
4.6
1.73
2.12
2.45
2.74
3.00
3. 24
3.47
3.68
3.88
4.8
1.78
2.18
2.52
2.82
3.09
3.34
3.57
3.78
3.99
5. 0
1.83
2.24
2,59
2.90
3.17
3.43
3.66
3.89
4. 10
5.2
1.88 2.30
2.66
2.97
3.26
3.52 3.76
3.99
4. 21
5.4 1.93
2,36
2.73
3.05
3.34 3.61
3.86
4.09
4.31
5.6
1.98
2.42
2.79
3.12
3.42 3.70
3.95
4. 19
4. 42
5.8
2.02
2.48
2.86
3.20
3.50
3.78
4.05
4. 29
4. 52
6.0
2. 07
2.53
2.93
3.27 3.58
3.87
4. 14
4.39
4.63
6.2
2.11
2.59
2.99
3.34 3.66
3.96
4. 23
4.49
4.73
6.4
2.16
2.65
3.05
3.41
3.74
4.04
4.32
4.58
4.83
6.6
2.20
2.70
3. 12
3.49
3.82
4.12
4.41
4.68
4.93
6,8
2.25
2.75
3. 18
3.56
3.90
4. 21
4.50
4.77
5.03
7.0 2.29
2.81
3. 24
3.63
3.97
4. 29
4.59
4.86
5. 13
7.5
8.0
8.5
9.0
LOOLO O
2.40
2.94
3.40
3.80 4.16
4.49
4.80
5.09
5.37
2. 51
3.07
3.54
3.96
4.34
4.69
5.01
5.32
5.60
2.61
3.20
3.69
4. 13
4.52
4.88
5.22
5.54
5.84
2.71
3.32
3.83
4. 29
4.70
5.07
5. 42
5.75
6.06
9.5
6. 28
2.81
5.96
3.44
5.62
3.97
5. 26
4. 44
4.87
HYDRAULIC TABLES
519
Table 42.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.075—Continued

S
.0055
.0060
.0065 .0070 .0075 .0080 .0085 .0090
.0095
.0100
T
0.2
0.50
0.52
0.55
0.57 0.59 0.61
0.62 0.64
0.66
0.68
0.4
.80
.83
.87
.90
.93
.96
.99
1.02
1. 05
1.08
0.6
1.05
1.09
1. 14
1. 18
1. 22
1.26
1.30
1.34
1.37
1.41
0.8
1.27
1.32
1.38
1. 43
1.48
1.53
1.57
1. 62
1.66
1.71
1.0 1.47
1.53
1.60
1.66
1.72
1.77
1.83
1.88
1.93
1.98
1.2
1.66
1.73
1.80 1.87
1.94
2.00
2.06
2. 12
2. 18
2. 24
1.4
1.84
1.92
2.00
2.07
2. 15
2. 22
2. 29
2.35
2.42
2.48
1.6
2. 01
2.10
2. 19
2.27
2.35
2. 42
2.50
2.57
2.64
2.71
1.8
2. 17
2. 27
2.36
2. 45
2.54
2.62
2.70
2.78
2.86
2.93
2.0
2.33
2.44
2.54
2. 63
2.72
2.81
2.90
2.98
3.07
3. 15
2.2
2.49
2.60
2.70
2.80
2.90
3.00
3.09
3. 18
3.27
3.35
2.4 2.63
2.75
2.86
2.97
3.08
3. 18
3. 27
3.37
3.46
3.55
2.6
2.78
2.90
3. 02
3. 13
3. 24
3. 35
3. 45
3.55
3.65
3.75
2.8
2.92
3.05
3. 17
3.29
3. 41
3.52
3.63
3.73
3.84
3.94
3.0
3.06
3. 19
3. 32
3. 45
3.57
3.69
3.80
3.91
4. 02
4. 12
3.2
3. 19
3.33
3.47
3.60
3.73
3.85
3.97
4. 08
4. 19
4.30
3.4
3.32
3. 47
3. 61
3.75
3.88
4.01
4. 13
4. 25
4. 37
4. 48
3.6
3.45
3.60
3.75
3.89
4. 03
4. 16
4. 29
4. 42
4.54
4. 65
3.8 3.58
3.74
3.89
4.04
4. 18
4. 32
4.45
4. 58
4.70
4.82
4.0
3.70
3.87
4. 03
4. 18
4. 32
4. 47
4.60
4.74
4.87
4.99
4.2
3.83
4.00
4. 16
4. 32
4. 47
4. 61
4.76
4.89
5.03
5. 16
4.4
3.95
4. 12
4. 29
4. 45
4. 61
4.76
4.90
5. 05
5. 19
5.32
4. 6
4.06
4. 24
4. 42
4. 59
4.75
4.90
5. 05
5. 20
5. 34
5.48
4.8
4. 18
4. 37
4.55
4.72
4.88
5.04
5.20
5. 35
5.50
5. 64
5.0
4.30
4. 49
4. 67
4.85
5.02
5. 18
5.34
5.50
5.65
5.79
5.2
4. 41
4.61
4.79
4.98
5. 15
5.32
5. 48
5.64
5.80
5.95
5.4
4. 52
4.72
4.92
5. 10
5. 28
5. 45
5. 62
5.79
5.94
6. 10
5.6
4. 63
4.84
5.04
5. 23
5.41
5.59
5.76
5.93
6.09
6. 25
5.8
4. 74
4.95
5. 16
5.35
5. 54
5.72
5.90
6.07
6. 23
6. 40
6.0
4.85
5.07
5.27
5. 47
5.67
5.85
6. 03
6. 21
6.38
6. 54
6.2
4.96
5. 18
5.39
5.59
5.79
5.98
6. 16
6.34
6.52
6. 69
6.4
5.07
5. 29
5. 51
5.71
5.91
6. 11
6.30
6.48
6.66
6.83
6.6
5. 17
5.40
5.62
5.83
6.04
6. 24
6. 43
6.61
6.79
6.97
6.8
5. 27
5. 51
5.73
5.95
6. 16
6.36
6.56
6.75 6.93
7.11
7.0
5.38
5.62
5.85
6.07
6. 28
6. 48
6.68
6.88
7.07
7.25
7.5
5. 63
5.88
6. 12
6. 35
6. 57
6.79
7.00 7.20
7.40
7.59
8.0
5.88
6. 14
6.39
6.63
6. 86
7.09
7.31 7.52
7.72
7.93
8.5
6. 12
6.39
6. 65
6.90
7.15
7.38
7.61
7.83
8.04
8. 25
9.0
6.36
6.64
6.91
7.17
7.42
7.67
7.90
8. 13
8.36
8.57
9.5
8.89
6.59
8.66
6.88 7.17
8.43
7.44 7.70
8. 19
7.95
520
HYDRAULIC TABLES
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.075—Continued

8
.01
.02
· 03
.04
.05
.06
.07
89
08
09
10
0.2
0.68
0.96
1.17
1.36
1.52
1.66
1.79 1.92
2.03
2. 14
0.4
1.08
1.52
1.86
2. 15
2.41
2.63
2.85
3.04
3.23
3.40
0.6 1.41
1.99
2. 44
2.82
3.15
3. 45
3.73
3.99
4.23
4.46
0.8
1.71
2.41
2.96
3.41
3.82
4. 18
4.52
4.83
5.12
5.40
1.0
1.98
2.80
3.43
3.96
4.43
4.85
5. 24
5.60
5.94
6. 27
1.2
2.24
3. 16
3.88
4. 47
5.00
5.48
5.92
6.33
6.71
7.08
1.4
2.48
3. 51
4.29
4.96
5.54
6.07
6.56
7.01
7.44
7.84
1.6
2.71
3.83
4.69
5.42
6.06
6. 64
7.17
7.67
8. 13
8.57
1.8
2.93
4. 15
5.08
5.86
6. 56
7.18
7.76
8.29
8.80
9.27
2.0
3.15
4.45
5.45
6.29
7.03
7.70
8.32
8.90
9.44
9.95
2.2
3.35 4.74
5.80
6.70
7.49
8. 21
8.87
9.48
10.05
10.60
2.4
3.55
5.02
6.15
7.10
7.94
8.70
9.40
10.05
10.65
11.23
2.6
3.75
5.30
6.49
7.49
8.38
9. 18
9.91
10.60
11. 24
11.85
2.8 3.94
5.57
6.82
7.87
8.80
9.64
10. 41
11. 13
11.81
12.45
3.0
4.12
5.83
7.14
8.24
9.22
10. 10
10.90 11.66
12.36
13.03
3.2
4.30
6.08
7.45
8.61
9.62
10.54
11.38
12.17
12.91
13.61
3. 4
4.48
6.34
7.76
8.96
10.02
10.97
11.85
12.67
13. 44
14. 17
3.6 4.65
6.58
8.06
9. 31
10. 41
11.40 12.31
13. 16
13.96
14.72
3.8
4.82
6.82
8.36
9.65
10.79
11.82 12.77
13.65
14. 47
15.26
4.0
4.99
7.06
8.65
9.99
11. 16
12. 23
13. 21
14. 12
14.98
15.79
4.2
5. 16
7.29 8.93
10.32
11.53
12.63
13.65
14.59
15.47
16. 31
4.4
5.32
7.52 9.21
10.64
11.90
13.03 14.08
15.05
15.96
16.82
4.6
5.48 7.75 9.49
10.96
12. 25
13.42
14.50 15.50
16.44
17.33
4.8
5.64
7.97.
9.77
11. 28
12.61
13.81
14.92 15.95 16.91
17.83
5.0 5.79
8. 19
10.03 11.59
12.95
14. 19
15.33
16.39
17.38
18.32
5.2 5.95
8.41
10.30 11.89 13.30
14.57
15.73
16.82
17.84
18.81
5.4
6.10
8.62
10.56 12.20
13.64
14.94
16. 14
17.25
18.30
19.29
5.6
6. 25
8.84
10.82 12.50
13.97
15.30
16.53
17.67
18.74
19.76
5,8
6.40
9.05
11.08 12.79
14.30 15.67
16. 92
18.09
19. 19
20.23
6.0
6. 54
9.25
11.33
13.08
14.63
16.03
17.31
18.50
19.63
20.69
6.2
6.69
9.46 11.58 13. 37
14.95
16. 38
17.69
18.91 20.06
21. 15
6.4 6.83
9.66 11.83
13. 66
15.27
16.73
18.07
19.32
20.49
21.60
6.6
6.8
6.97
9.86 12.07
13.94
15.59
17.08
18.44 19.72 20.91
22.05
7.11
10.06 12.32
14.22 15.90
17.42
18.82 20.11
21.33
22.49
7.0 7.25
10.25
12.56
14.50
16. 21
17.76
19. 18
20.51
21.75
22.93
7.5 7.59
10.74
13. 15
15. 18
16.98
18.60
20.09
21.47
22.77
24. 01
8.0 7.93
11. 21
13.73
15.85
17.72
19.41
20.97 22.42
23.78
25.06
8.5 8.25
11.67
14.29
16.50
18.45
20. 21
21.83
23.34 24.76
26.10
9.0
8.57
12. 12
14.85
17. 15
19. 17
21.00
22.68 24.25
25.72
27.11
9.5
28. 10
8.89
23.51 25.14 26.66
12.57
21.77
15.39 17.77
19.87
HYDRAULIC TABLES
521
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.075—Continued

.00005
.00010 .00015 .00020.00025.00030.00035.00040.00045.00050
10
11
12
13
15
16
18
19
20
21
23
26
27
28
29
37
39
PIRAL BO1-2 272** HONOR 8H8** 2008 *S** 4950GR 2
0.65
0.92
1. 13
1.30 1.45 1.59 1.72 1.84 1.95
2.06
.69
.98
1.20
1.39
1.55
1.70
1.83
1.96
2.08
2.19
.73
1.04
1.27
1.47
1.64
1.80 1.94
2.08
2.20
2.32
.77
1.10
1.34
1.55
1.73
1.90
2.05
2. 19
2.32
2.45
14
.81
1.15
1.41
1.63
1.82
1.99
2.15
2.30
2.44
2.57
.85
1.21
1.48
1.70
1.91
2.09
2.25
2.41
2.56
2.69.
.89
1.26
1.54
1.78
1.99
2. 18
2.35 2.52
2.67
2.81
17
.93
1.31
1.60
1.85
2.07
2. 27
2.45
2.62
2.78
2.93
.96
1.36 1.67
1.92
2. 15
2.36 2.55 2.72
2.89
3.04
1.00
1.41
1.73
2.00
2,23
2.44
2.64
2.82
2.99
3. 15
1.03
1.46
1.79
2.06
2.31
2.53
2.73
2.92
3.10
3.26
1.07
1. 51
1.85
2. 13
2.38
2.61
2.82
3.02
3.20
3.37
1. 10
1.56
1.91
2.20
2.46
2.69
2.91
3. 11
3.30
3.48
1.13
1.60
1.96
2.27
2. 53
2.78
3.00
3. 20
3.40
3.58
24
1.17
1.65
2.02
2.33
2.61
2.86
3.08
3.30
3.50
3.69
25
1.20
1.69
2.07
2.40
2.68
2.93
3.17
3.39
3.59
3.79
1.23
1.74
2. 13
2.46
2.75
3.01
3. 25
3.48 3.69
3.89
1.26
1.78
2. 18
2.52
2.82 3.09
3.34
3.57
3.78
3.99
1.29 1.83
2.24
2.58
2.89
3.16
3.42
3.65 3.88
4.09
1.32
1.87
2.29 2.64
2.96
3. 24
3.50
3.74
3.97
4. 18
30
1.35
1.91 2.34
2.71
3.02
3.31
3.58
3.83
4.06
4. 28
31
1.38
1.96 2.39
2.77
3.09 3.39 3.66
3.91
4. 15
4.37
32
1.41
2.00
2.45
2.82
3.16
3.46
3.74
3.99
4. 24
4.47
33
1.44
2.04 2.50 2.88
3.22
3.53
3.81 4.08
4.32
4.56
34
1.47
2.08
2.55
2.94
3.29
3.60
3.89
4.16
4.41
4.65
35
1.50
2. 12
2.60
3.00
3.35 3.67
3.97
4. 24
4.50
4.74
36
1.53
2.16
2.65
3.05
3.42 3.74
4.04
4.32
4.58
4.83
1.56
2.20
2.69
3. 11
3.48
3.81
4. 12
4. 40
4.67
4.92
38
1.58
2.24
2.74
3. 17
3. 54
3.88
4. 19
4.48
4.75
5.01
1.61
2. 28
2.79
3.22
3.60
3.95
4.26
4.56
4.83
5.10
40
1.64
2.32
2.84
3.28
3.66
4.01
4.34
4. 63
4.92
5.18
41. 1.67 2.36
2.89 3.33
3.72
4.08
4.41
4.71
5.00
5.27
42
1.69
2.39
2.93
3.39
3.79
4. 15
4.48
4.79
5.08
5.35
43
1.72
2.43 2.98
3.44 3.85
4. 21
4. 55
4.86
5. 16
5.44
44
1.75
2.47
3.02
3.49
3.90
4.28
4. 62
4. 94
5. 24
5. 52
1.77
2. 51
3.07
3.54
3.96
4. 34
4.69
5. 01
5.32
5.61
46
1.80
2.54
3. 12
3.60
4. 02
4.41
4. 76
5.09
5.40
5.69
47 1.82
2.58
3.16
3.65
4.08
4.47
4.83
5. 16
5.47
5.77
48
1.85
2.62
3. 21
3.70
4. 14
4.53
4.90
5. 23
5. 55
5.85
1.88
2. 65
3. 25
3.75
4. 19
4.60
4.96
5. 31
5.63
5.93
50
1.90 2.69
3.29
3.80
4. 25
4.66
5.03
5.38
5.70
6.01
563189°—44- -34
522
HYDRAULIC TABLES
Table 42.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.075—Continued

.00055 .00060.00065 | .00070 | .00075.00080.00085 | .00090.00095 | .00100
RIRRI -**** S**** REA32 SH88 888 SE*** ***** 2
222
10
2.16
2.25
11
2.30 2.40
12
2.44
2.54
2.65
13
2.57
2.68
2.79
2.90
14
2.70
2.82
2.93 3.05
2. 34 2.43 2.52 2.60
2.50
2.59
2.68
2.75 2.84
3.00
3.15
2.-68 2.76 2.83 2.91
2.77
2.94
3.10 3.19
2.86 2.94
3.02
3.10
3.03 3.12
3.20
3.28
3.29
3.38
3.46
3.26
3.36
3.45 3.55
3.64
15
2.83
2.95
3.07
3.19
3.30 3.41
3.51
3.62
3.71
3.81
16
2.95
3.08
3. 21
3.33
3.45 3.56
3.67
3.77
3.88
3.98
17
3.07
3.21
3.34
3.47
3.59
3.71
3.82
3.93
4.04
4. 14
18 3.19
3.33
3.47
3.60
3.73
3.85
3.97
4.08
4.19
4.30
19
3.31
3.46
3.60
3.73
3.86
3.99
4.11
4. 23
4.35
4.46
20
3.42
3.58
3.72 3.86
4.00
4. 13
4. 26
4.38
4.50
4. 62
21
3. 54
3.69
3.84
3.99
4. 13
4. 27
4.40
4. 52
4. 65
4.77
22
3.65
3.81
3.97
4.12
4.26
4.40
4. 54
4.67
4.79
4.92
23
3.76
3.93
4.09
4. 24
4.39
4.53
4.67
4.81
4.94
5.07
24
3.87
4.04
4.20
4.36
4. 51
4.66
4.81
4.95
5.08
5. 21
25
3.97
4. 15
4.32
4.48
4.64
4.79
4.94
5.08
5. 22
5.36
26
4.08
4.26
4.43
4.60
4.76 4.92
5.07
5. 22
5.36
5.50
27
4. 18
4.37
4. 55
4.72
4.88
5.04
5. 20
5.35
5.50
5.64
28
4. 28
4.48
4.66
4.83
5.00
5.17
5.33
5.48
5.63
5.78
29
4.39
4.58
4.77
4.95
5.12
5. 29
5.45
5. 61
5.76
5.91
30 4.49
4.69 4.88
5.06
5. 24
5.41
5.58
5.74
5.90
6.05
31
4.59
4.79 4.98
5.17
5.35
5.53
5.70
5.87
6.03
6.18
32
4.68 4.89 5.09
5.28
5.47 5.65
5.82
5.99
6.16
6. 32
33 4.78 4.99 5.20
5.39
5.58
5.77
5.94
6.12
6. 28
6.45
34 4.88
5.09
5.30
5.50
5.69
5.88
6.06
6. 24
6. 41
6.58
35
4.97
5. 19
5.40
5.61
5. 81
6.00
6.18
6.36
6.53
6.70
36
5.07
5.29
5. 51
5.72
5.92❘
6. 11
6.30
6.48 6.66
6.83
37
5. 16
5.39
5.61
5.82
6.02
6. 22
6.41
6.60
6.78
6.96
38
5. 25
5.49
5.71
5.93
6. 13
6.33
6. 53
6.72
6.90 7.08
39
5.34
5.58 5.81
6.03
6. 24
6.44
6.64
6.84
7.02
7.21
40
5.43
5.68 5.91
6.13
6.35
6.55
6.76 6.95 7.14
7.33
41
5.52 5.77
6.01
6.23 6.45
6.66
6.87 7.07 7.26
7.45
42 5.61
5.86
6.10
6.33 6.56
6.77
6.98
7.18
7.38
7.57
43 5.70 5.96
6. 20
6.43
6.66
6.88 7.09
7.30
7.50
7.69
44
5.79
6.05
6.30
6.53
6.76
6.98
7.20
7.41
7.61
7.81
45
5.88
6. 14
6.39
6.63
6.86
7.09
7.31
7.52
7.73
7.93
46 5.97
6. 23
6.49
6.73 6.97 7.19
7.42
7.63 7.84
8.04
47
6.05
6 32
6. 58
48
6.14
6.41
6.67
49
6. 22
6.50 6.76 7.02
6.83 7.07
6.92 7.17 7.40 7.63
7.27
7.30
7.52
7.74
7.95
8.16
7.85
8.07
8.28
7.50 7.74
7.96
8.18 8.39
50
6.31
6.59 6.86
7.11
7.36
7.61
7.84 8.07
8.29
8.50
HYDRAULIC TABLES
523
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= Pr2/3g1/2
n
n=.075—Continued


8
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045
.0050
T
10
2.91
3.56
4. 11
4.60
5. 04
5. 44
5.82
6. 17
6.50
11
3. 10
3.80
4. 38
4.90
5.37
5.80
6. 20
6. 57
6.93
12
3.28
4.02
4.64
5. 19
5. 69
6. 14
6.57
6.97
7.34
13
3.46
4. 24
4.90
5.48
6.00
6.48
6.93
7.35
7.75
14
3.64
4.46
5. 15
5.75
6. 30
6.81
7.28
7.72
8. 14
15
3.81
4.67
5.39
6.03
6.60
7.13
7.62
8.08
8.52
16
3.98
4.87
5. 63
6. 29
6.89
7.44
7.96
8.44
8.90
17
4. 14
5.07
5.86
6. 55
7.17
7.75
8.28
8.79
9.26
18
4.30
5. 27
6.09
6.80
7.45
8.05
8. 61
9. 13
9. 62
19
4.46
5.46
6. 31
7.05
7.73
8.35
8.92
9.46
9.98
20
4. 62
5. 65
6.53
7.30
8.00
8.64
9.23
9.79
10.32
21
4.77
5.84
6.74
7.54
8. 26
8.92
9.54
10. 12
10.66
22
4.92
6.02
6.96
7.78
8.52
9.20
9.84
10. 44
11.00
23
5.07
6. 21
7.17
8.01
8.78
9.48
10. 13
10.75
11.33
24
5. 21
6.38
7.37
8. 24
9.03
9.75
10.43
11.06
11.66
22522
5.36
6. 56
7.58
8.47
9.28
10.02
10. 71
11.36
11.98
26
5.50
6. 73
7.78
8.69
9.52
10. 29
11.00
11.66
12.30
27
5. 64
6.91
7.97
8.92
9.77
10.55
11. 28
11.96
12.61
28
5.78
7.08
8. 17
9. 13
10. 01
10.81
11.55
12. 26
12.92
29
5.91
7.24
8.36
9.35
10.24
11.06
11.83
12. 55
13. 22
30
6.05
7.41
8.56
9.56
10. 48
11.32
12. 10
12.83
13.53
31
6. 18
7.57
8.74
9.78
10. 71
11.57
12.37.
13. 12
13.83
36
*** ***88 -****
32
6.32 7.73
8.93
9.99
10.94
11.81
12.63
13.40
14. 12
33
6.45
7.89
9.12
10. 19
11. 17
12.06
12.89
13. 67
14.41
34
6.58
8.05 9.30
10.40
11. 39
12.30
13. 15
13.95
14. 70
35
6.70
8. 21
9.48
10.60
11.61
12. 54
13. 41
14.22
14.99
6.83
8.37
9.66
10.80
11.83
12.78
13.66
14.49
15. 27
37 6.96
8.52
9.84
11.00
12.05
13.02
13.91
14.76
15.56
38
7.08
8.67
10.02
11.20
12. 27
13. 25
14. 16
15.02
15.84
39
7.21
8.82
10. 19
11.39
12. 48
13. 48
14. 41
15. 29
16. 11
40
7.33
8.98
10.36
11. 59
12. 69
13.71
14.66
15. 55
16.39
41 7.45
9. 12
10.54
11.78
12. 90
13. 94
14.90
15.80
16. 66
42
7.57
9.27
10.71
11.97
13. 11
14. 16
15. 14
16.06
16.93
43
7.69
9.42
10.88
12. 16
13.32
14.39
15. 38
16. 31
17.20
44
7.81
9.56
11.04
12.35
13.53
14. 61
15. 62
16.57
17.46
45
7.93
9.71
11. 21
12.53
13.73
14.83
15.85
16.82
17.72
46
8.04
9.85
11.38
12.72
13.93
15.05
16.09
17.06
17.99
47
8.16
9.99
11.54
12.90
14. 13
15. 27
16. 32
17.31
18.25
48
8.28
10. 14
11. 70
13.08
14. 33
15.48
16. 55
17.55
18.50
49
8.39
10.28
11.87
13. 27
14.53
15.70
16.78
17.80
18.76
50
18.04 19.01
8.50
17.01
10. 41
15.91
12.03
14.73
13.45
524
HYDRAULIC TABLES
Table 42.-Velocity of water, v, in feet per second, based on
.1.486
N
Manning's formula v= -r2/31/2
T
∞
n=.075—Continued



.0055
.0060
.0065
.0070 .0075 .0080 .0085
.0090 .0095
.0100
37
39
41
42
43
48
RIFFI B-=-= 222** BREAR AH*** *8588 ***** 49799 8
10
6.82
7.12
7.41
7.69
11
7.27
7.59
7.90
8.20
7.96 8.23
8.49 8.77 9.04
8.48
8.72 8.96
9.20
9.30
9.55
9.80
7.70
8.04
8.37
8.69
8.99 9.29
9.57
9.85
10.12
10.39
13
8.12 8.49
8.83
9.17
9.49 9.80
10.10
10.39
10.68
10.95
14
8.54
8.91
9.28
9.63
9.97
10.29
10.61
10.92
11. 22
11.51
15
8.94
-9.33
9.72
10.08
10.44
10.78
11. 11
11.43
11.75
12.05
9.33
9.74
10. 14
10.53
10.90
11.25
11.60
11.94
12. 26
12.58
9.71
10. 15
10.56
10.96
11.34
11.72
12.08
12.43
12.77
13. 10
10.09
10.54
10.97
11.39
11. 79
12. 17
12.55
12.91
13.26
13.61
10.46
10.93
11.37
11.80
12. 22
12. 62
13.01
13.38
13.75
14. 11
20
10.83
11.31
11.77
12. 21
12.64
13.06
13.46
13.85
14.23
14.60
21
11. 18
11.68
12. 16
12.62
13.06
13.49
13.90
14.31
14.70
15.08
11.54
12.05
12. 54
13.02 13.47
13.91
14. 34
14.76
15. 16
15.56
23 11.88
12.41
12.92
13.41
13.88
14.33
14.77
15.20
15.62
16.02
24 12.23
12.77
13.29
13.79
14.28
14.74
15.20
15.64
16.07
16.49
25
12.56
13. 12
13.66
14. 17
14.67
15. 15
15.62
16.07
16. 51
16.94
26 12.90
13.47
14.02
14. 55
15.06
15. 55
16.03
16. 50
16.95
17.39
27
13.22
13.81
14.38
14.92
15. 44
15.95
16.44
16. 92
17.38
17.83
28 13.55
29 13.87
30
14. 19
14.50
32 14.81
33
15.12
34 15.42
14. 15
14.73 15.29
15.82
16. 34
16.84
17.33
17.81
18.27
14.49
15.08 15.65
16. 20
16.73
17.24
17.74
18.23
18.70
14.82
15.42 16.00
16.57
17. 11
17.64
18. 15
18.65
19. 13
15. 15
15.76
16.36
16. 93
17.49
18.03
18.55
19.06
19.55
15.47
16. 10
16.71
17.30
17.86
18.41
18.95 19.46
19.97
15.79
16.43
17.05 17.65 18.23
18.79
19.34 19.87
20,38
16. 11
16.76
17.40
18.01
18.60
19. 17
19.73
20.27
20.79
35 15.72
16.42
17.09 17.74
18.36
18.96
19. 55
20.11
20.66
21.20
36 16.02 16.73 17.42 18.07
18. 71
19.32
19.92
20.49
21.05
21.60
16.32
17.04 17.74 18.41
19.05
19.68
20.28 20.87
21. 44
22.00
16.61 17.35 18.06 18.74
16.90 17.65 18.37 19.06
19.39
20.03 20.65
21.25
21.83
22.39
19.73
20.38
21.01
21.62
22. 21
22.79
40 17.19 17.95
18.68 19.39 20.07
17.47
17.75
18.25
18. 54
18.04
44 18.31
18.84
19. 13
18.99 19.71 20.40
19.30 20.03 20.73
19.61 20.35 21.06
19.91 20.66 21.39
20.73 21.37 21.98
21.07 21.72 22.35 22.96
21.41 22.07 22.71 23.33
22.59
23.17
23. 56
23.94
21.75
22.09
22.42 23.07 23.70
24.32
22.77 23.43 24.07
24.69
46
45 18.59
18.86
19. 14
19.41
19.68 20.55 21.39 22. 20
19.42 | 20. 21
20.97
21.71
22.42
23.11
23.78
24.43
25.07
19.70 20.51
21, 28
22.03 22.75
23.45
24. 13
24.79
25. 44
19.99 20.80
21.59
22.35 23.08
23.79
24.48
25. 15
25.80
20.27 21.10 21.89
22.66 23.41
24. 13
24.83
25.51
26.17
22.98
23.73
24.46
25.17
25.86
26.53
50 19.94
20.83 21.68 22.50
23.29
24.05 24.79 25.51 26.21
26.89
HYDRAULIC TABLES
525
Table 42.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/3g1/2
N
n=.075—Continued


❤
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
10
9.20
13. 01
15.93
18. 39
20.56
22.53
24.33
26. 01
27.59
29.08
11
9.80
13.86
16.97
19.60
21.91
24.00
25.93
27.72
29.40
31.00
12
10.39
14.69
17.99
20.77
23. 22
25.44
27.48
29.37
31. 16
32.84
13
10.95
15.49
18.97
21. 91
24.49
26.83
28.98
30.98
32.86
34.64
14
11. 51
16. 28
19.93
23.02
25.74
28. 19
30.45
32.55 34.53
36.40
33
35
19102 22234 22EXR AZ2** ****
15
12.05
17.04
20.87
24. 10
26.95
29.52
31.88
34.09
36. 15
38. 11
16
12.58
17.79 21.79
25. 16
28. 13
30.82 33.29
35.58
37.74
39.78
17
13. 10
18.53
22.69
26.20
29.29
32.09
34.66
37.05
39.30
41.42
18
13.61
19.25
23.57 27.22
30.43
33.33 36.00 38.49
40.83
43.03
14. 11
19.95
24.44
28.22
31.55 34.56
37.33 39.90
42.32
44.61
20
14. 60
20.65
25.29
29.20
32.64
35.76
38.62 | 41.29
43.80
46. 16
21
15.08
21.33 26.12
30. 16
33.72
36.94
39.90 42.66
45. 24
47.69
15.56 22.00 | 26.94
31. 11
34.78
38. 10
41. 16
44.00
46.67
49. 19
16.02 22.66 27.75
32.05
35.83
39.25 | 42. 40
45.32
48.07
50.67
16.49
23.31 28.55 32.97
36.86
40.38 43.62
46.63
49.46
52. 13
25
16. 94
23.96 29.34 33.88
37.88
41.49
44.82
47.91
50.82
53. 57
26
17.39
24.59
30.12 34.78
38.88
42.59
46.01
49.18
52. 17
54.99
27
17.83
25.22
30.89 35.66 39.87
43.68
47. 18
50.44
53.50
56.39
28
18. 27
25.84
31.64
36.54
40.85
44.75
48.34
51.67
54.81
57.77
29
18.70
26.45
32. 39
37.40
41.82
45.81
49.48
52.90
56. 11
59. 14
30
19. 13
27.05
33.13
38. 26
42.78 46.86
50.61
54. 11
57.39
60.49
31
19.55
27.65
33.87
39.10
43.72
47.89 51.73
55.30
58.66
61.83
32
19.97
28. 24
34.59
39.94
44.66 48.92
52.84 56.49
59.91
63. 15
20.38
28.83
35. 31
40.77
45.58
34 20.79
29.41
36.02
41.59
46.50
49.93 53.93
50.94 55.02
57.66
61. 15
64.46
58.82
62.38
65.76
21.20
36
37 22.00
38 22.39
39 22.79
21.60
30.55
37.42
31. 11
38. 11
31.67
38.79
32. 22
39.47
29.98 36.72 42.40 47.40 51.93
43.20 48.30 52.91
44.00 49.19 53.89
44.79 50.08 54.86
45.57 50.95
56.09 59.96
63.60
67.04
57.15
61.10
64. 81
68.31
58. 21
62.23
66.00
69.57
59.25
63.34 67.18
70.82
55.81 60.29 64.45 68.36
72.06
40 23.17
32.77 40.14
46. 35
41 23.56
33.32 40.80
47.12
42 23.94
33.86
41.47
51.82
52.68
47.88 53.53 58.64
56.76 61.31
65.55 69.52
73.28
57.71 62.33 66.63 70.68
74.50
63.34
67.71
71.82
75.70
43 24.32
34.39
42. 12
48.64 54.38 59.57
64. 34
68.78 72.96
76.90
44 24.69 34.92
42.77
49.39 55.22
60.49
65.33
69.85 74.08
78.09
45 25.07
35.45
43.42
50. 13
56.05
61.40
66.32 | 70.90 | 75.20
79.27
46 25.44
35.97
44.06
50.87
56.88
62.31
67.30
71.95 76.31
80.44
47
25.80
36.49 44.69 51.61 57.70
63. 21
68.27
72.99 | 77.41
81,60
48
26. 17
37.01 45.33 52.34 58.52
64. 10
69.24
74.02 78. 51
82.75
49
26.53
37.52 45.95
53.06 59.33
64.99
70.19
75.04
79.59
83.90
50 26.89 38.03 46.58
85.04
53.78 60. 13
76.06 80.67
65.87
71. 15
526
HYDRAULIC TABLES
Table 43.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
Co
8
.00005
n=.100

0040
.00010 .00015 .00020 | .00025 | .00030 | .00035 | .00040 | .00045 | .00050
0.2
0.04
0.05
0.4
.06
.08
0.06
10
0.07
0.08
0.09
0.10
0.10
0.11
0.11
·
11
. 13
.14
.15
0.6
.16
.17
.07
11
.18
•
.13
.15
•
.17
.18
0.8
.20
21
22
.09
.13
.24
.16
.18
.20
.22
•
24 .26
.27
.29
1.0
.11
15
•
.18
.21
.23
.26
1.2
.12
.17
•
.21
24
.27
1.4 .13
.19
.23
26
.29
1.6
•
.14
.20
.25
.29
.32
.35
1.8
.16
.22
.27
· 31
.35
·
222383
.28
.30
.32
.33
.29 .31
.34
.36
.38
.35
.37 .39
.42
.38
. 41
.43
.45
.41
44
•
.47
.49
2.0
.17
24
29
•
.33
2.2
.37
.18
.25
· 41
44
•
.47
.50
.31 .36
.53
.40
.44
2.4
.19
.27
.47
.50
.53
.56
.33
.38
42
2.6
•
.46
.50
53
.20
•
.57
28
.60
.34
.40
44
•
.49
.53
2.8
.21
.56
.60
.30
.36
.63
.42
.47
.51
.55
.59
.63
.66
3.0
22
•
· 31
.38
.44
.49
54
3.2
•
.58
62
23
•
.66
•
.32
.40
.69
.46
.51
.56
3.4
.24
.60
.65
.68
.34
.72
.41
.48
.53
.58
3.6
.63
.67
.25
.71
.35
.75
43
•
.49
3.8
· 55
.60
.65
.26
.70
.74
.36
.44
.78
.51
.57
.63
.68
.72
.77
.81
4.0
.26
.37
· 46
.53
4.2
.59
.65
.70
.75
. 27
.79
.39
.84
.47
•
.55
.61
67
4. 4
.72
.77
28
.82
•
.40
.49
.86
.56
.63
4.6
.29
· 69
.75
.80
.85
.41
.50
.89
.58
.65
.71
4.8
.77
.82
.30
.42
.87
.52
.92
.60
.67
.73
.79
.85
.90
.95
5.0
.31
.43
.53
.61
.69
.75
5.2
.32
.81
.87
.92
.45
.97
.55
.63 .71
5.4
.32
.77 .83
.89
.95
46
1.00
•
.56
.65
.72
.79
5.6
.86
.33
.47
.91
.97
.57
1.02
.66
.74
.81
.88
5.8
.94
.34
.99
48
.59
1.05
·
.68
.76
.83
.90
.96
1.02
1. 07
6.0
.35
•
49 .60
.69
.78
.85
.92
6.2
.98
.35
1.04
.50
.61
1. 10
.71 .79
.87
.94
6.4
1.00
.36
1.06
.51
.63
1. 12
.72
.81
.89
.96
6.6
1.02
.37
1.09
.52
.64
6.8
.74 .83
1. 15
.91
.98
.38
1.05
1.11
.53
1. 17
.65
.75
.84
.92
1.00
1.07
1. 13
1. 19
7.0
.38
.54
.67
.77
.86
.94
1.02
1.09
7.5
.40
1. 15
.57
1.22
.70
.81
.90
.99
8.0
.42
1.07
1. 14
1. 21
.59
1.27
.73
.84
.94
1.03
1. 11
8.5
.44
1. 19
1.26
.62
1.33
.76
.88
.98
1. 07
1. 16
9.0
1. 24
.45
1.31
.64
.79
.91
1.38
1.02
1. 11
1.20
1.29
1.36
1.44
9.5
1.49
.47
1. 41
.67
1.33
.82
1. 25
.94
1. 15
1. 05
HYDRAULIC TABLES
527
Table 43.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
=.100-Continued

.00055
00079
.00060.00065 | .00070 | .00075 | .00080 | .00085 | .00090 | .00095 | .00100
T
sess
0.12
0.12
0.13
0.13 0.14 0.14 0.15
0.15
0.16
0.16
.19
.20
.21
.21
.22
.23
.24
.24
.25
.26
.25
.26
.27
.28
.29
.30
.31
.32
.33
.33
.30
.31
.33
.34
.35
.36
.37
.38
.39
.40
1.0
.35
.36
.38
.39
.41
.42
.43
.45
.46
.47
1.2
.39
.41
.43
.44
.46
.47
.49
.50
.52
.53
1.4
.44
.46
.47
.49
.51
.53
•
.54
.56
.57
.59
1.6
.48
.50
.52
.54
.56
.57
.59
.61
.63
.64
1.8
.52
.54
.56
.58
.60
.62
.64
.66
.68
.70
2.0
.55
.58
.60
.62
.65
.67
.69
.71
.73
.75
2.2
.59
.62
.64
.67
.69
.71
.73
.75
.77
.79
2.4
.62
.65
.68
.70
.73
.75
: 78
.80
.82
.84
2.6
.66
.69
.72
.74
.77
.79
.82
.84
.87
.89
2.8
.69
.72
.75
.78
.81 .83
.86
.89
.91
.93
3.0
.72
.76
79
·
82
.85
.87
.90
.93
.95
.98
3.2
.76
.79
.82
.85
.88
.91
.94
.97 .99
1.02
3.4
.79
.82
.86
.89 .92
.95
.98
1.01
1.04
1.06
3.6
.82
.85
.89
.92
.96
.99
1.02
1.05
1.08
1.10
3.8
.85
.89
.92
.96 .99
1.02
1.05
1.09
1.12
1.14
4.0
.88
.92
.95
.99
1.03
1.06
1.09
1.12 1.15
1.18
4.2
91
.95
.99
1.02
1.06
1.09
1.13
1.16
1.19
1.22
4.4
.94
.98
1.02
1.06
1.09
1.13 1.16
1.20
1.23
1.26
4.6
.96 1.01
1.05
1.09
1.13
1.16
1.20
1.23 1.27
1.30
4.8
.99
1.04
1.08
1.12
1.16
1.20 1.23
1.27
1.30
1.34
5.0
1.02
1.06 1.11
1.15
1.19
1.23
1.27
1.30
1.34
1.37
5.2 1.05
1.09
1.14
1. 18
1.22
1.26
1.30 1.34
1.37
1.41
5.4 1.07
1.12
1.17
1.21
1.25
1.29
1.33 1.37 1.41
1.45
5.6 1.10
1.15
1.19 1.24
1.28 1.33
1.37 1.41 1.44
1.48
5.8
1.12
1.18
1.22
1.27
1.31
1.36
1.40
1.44
1.48
1.52
6.0
1.15
1.20
1.25
1.30
1.34
1.39
1.43
1.47 1.51
1.55
6.2
1.18
1.23
1.28
1.33
1.37
1.42
1.46
1.50 1.55
1.59
6. 4
1.20
1.25
1.31 1.36
1.40
1.45 1.49
1.54 1.58
1.62
6.6
1.23
1.28 1.33 1.38
1.43
1.48 1.52
1.57
1.61
1.65
6.8
1.25
1.31 1.36 1.41
1.46
1.51
1.56 1.60
1.64
1.69
7.0
1.28
1.33
1.39 1.44
1.49 1.54
1.59
1.63
1.68
1.72
7.5 1.34
1.39 1.45 1.51
1.56
1.61
1.66
1.71 1.75
1.80
8.0 1.39
1.46 1.52 1.57
1.63
1.68
1.73 1.78 1.83
1.88
8.5 1.45
9.0
1.51
1.52 1.58
1.69
1.57 1.64 1.70 1.76
1.64
1.75 1.80 1.86 1.91
1.82
1.96
1.87 1.93 1.98
2.03
9.5
2.11
1.56
2.05
1.63 1.70 1.76 1.83
1.89 1.94 2.00
528
HYDRAULIC TABLES
Table 43.—Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= -r2/31/2
n=.100-Continued


8
.0010
.0015
.0020 .0025 .0030 .0035 .0040
.0045
.0050
0.2
0.16
0.20
0.23
0.25
0.28
0.30
0.32
0.34
0.36
0.4
.26
.31
.36
.40
.44
.48
.51
.54
.57
0.6
.33
.41
.47
.53
.58
.63
.67
.71
.75
0.8
.40
.50
.57
64
.70
.76
.81
.86
.91
1.0
.47
.58
.66
.74
.81
.88
.94
1.00
1.05
1.2
.53
.65
.75
.84
.92
.99
1.06
1. 13
1. 19
1. 4
59
.72
.83
•
.93
1.02
1. 10
1. 18
1.25
1,31
1.6
.64
.79
.91
1.02
1. 11
1.20
1.29
1.36
1.44
1.8
.70
.85
.98
1. 10
1.20
1.30
1.39
1. 48
1.55
2.0
.75
.91
1.05
1. 18
1.29
1.40
1.49
1.58
1.67
2.2
.79
.97
1. 12
1.26
1.38
1.49
1.59
1,69
1.78
2.4
.84
1,03
1. 19
1.33
1. 46
1. 58
1.68
1.79
1.88
2.6
.89
1.09
1.26
1.40
1. 54
1.66
1.78
1.88
1.99
2.8
.93
1. 14
1.32
1. 48
1.62
1.75
1.87
1.98
2.09
3.0
.98
1.20
1.38
1. 55
1.69
1.83
1.95
2.07
2. 19
3.2 1.02
1.25
1.44
1.61
1.77
1.91
2.04
2. 16
2. 28
3.4
1.06
1.30
1,50
1.68
1.84
1.99
2. 13
2.25
2.38
3.6
1.10
1.35
1.56
1.75
1.91
2. 07
2. 21
2.34
2.47
3.8
1. 14
1.40
1.62
1.81
1.98
2. 14
2.29
2.43
2. 56
4.0
1. 18
1.45
1.67
1.87
2.05
2. 22
2.37
2. 51
2.65
4.2
1.22
1.50
1.73
1.93
2. 12
2. 29
2.45
2.59
2.74
4. 4
1.26
1.55
1.78
2.00
2. 19
2.36
2. 52
2.68
2.82
4.6
1.30
1.59
1.84
2.06
2. 25
2.43
2.60
2.76
2.91
4.8
1. 34
1.64
1.89
2. 11
2.32
2.50
2.67
2.84
2.99
5.0
1.37
1.68
1.94
2. 17
2.38
2.57
2.75
2.91
3. 07
5.2
1.41 1.73
1.99
2. 23
2. 44
2. 64
2.82
2.99
3. 15
5.4
1.45
1.77
2.05
2. 29
2. 51
2. 71
2.89
3.07
3. 23
5.6 1.48
1.81
2.10
2.34
2.57
2.77
2.96
3. 14
3.31
5.8
1.52
1.86
2. 15
2.40
2. 63
2.84
3.03
3.22
3.39
6.0
1.55
1.90
2. 19
2.45
2.69
2.90
3. 10
3.29
3. 47
6.2
1.59
1.94
2. 24
2.51
2.75
2.97
3. 17
3.36
3.55
6.4
1.62
1.98
2. 29
2.56
2.81
3.03
3. 24
3.44
3.62
6.6 1.65
2.03
2. 34
2. 61
2.86
3.09
3.31
3. 51
3.70
6.8
1.69
2.07
2.39
2.67
2.92
3. 16
3.37
3.58
3.77
7.0
1.72
2.11
2.43
2.72
2.98
3.22
3.44
3.65
3.85
7.5
1.80
2. 21
2.55
2.85
3. 12
3.37
3.60
3.82
4. 03
8.0
1.88
2.30
2.66
2.97
3.26
3.52
3.76
3.99
4. 20
8.5
1.96 2.40
2.77
3.09
3.39
3.66 3.91
4. 15
4.38
9.0
2.03 2.49
2.88
3. 21
3.52
3.80
4.07
4. 31
4. 55
9.5
4.71
2. 11
4.47
2.58
4. 22
2.98
3.94
3.33 3.65
HYDRAULIC TABLES
529
Table 43.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.100-Continued

S
.0055 .0060
.0065
.0070 .0075 .0080 .0085 .0090 .0095
.0100
T
0.6
0.8
0.2
0.4
∞ - 1 ∞
0.38
0.39
0.41
0.43
0.44 0.45
0.47
0.48
0.50
0.51
.60
.62
.65
.67 .70 .72
.74
.77 .79
.81
.78
.82
.85
.88
.92
.95
.97
1.00
1.03
1.06
.95
.99
1.03
1.07
1.11
1.15
1.18
1.21
1.25
1.28
1.0
1.2
1.4
1.6
1.8
OQ4BAD
1.10
1.15
1.20
1.24
1.29
1.33
1.37
1.41
1.45
1.49
1.24
1.30
1.35
1.40
1.45
1.50
1.55
1.59
1.64
.1.68
1.38
1.44 1.50
1.56
1.61
1.66
1.71
1.76
1.81
1.86
1.51
1.57 1.64
1.70
1.76
1.82
1.87
1.93
1.98
2.03
1.63
1.70 1.77
1.84
1.90
1.97
2. 03
2.09
2.14
2.20
2.0
1.75
1.83 1.90
1.97
2.04
2.11
2.17
2. 24
2.30
2.36
2.2
1.86
1.95
2.03
2.10
2.18
2.25
2.32
2.38
2.45
2.51
2.4
1.98
2.06
2.15
2. 23
2. 31
2.38
2.46
2.53 2.60
2.66
2.6 2.08 2.18
2. 27
2.35
2.43
2.51
2.59
2.67 2.74
2.81
2.8
2.19
2.29
2.38
2.47
2.56
2. 64
2.72 2.80
2.88
2.95
3.0
2.29 2.39
2.49
2.59
2.68
2.76
2.85
2.93
3.01
3.09
3.2
2.39
2.50
2.60
2.70 2.79
2.89
2.98 3.06 3.15
3. 23
3.4
2.49 2.60
2.71
2.81
2.91
3.01
3.10
3.19
3.27
3.36
3.6
2.59
2.70
2. 81
2.92
3.02
3.12
3. 22
3.31
3.40
3.49
3.8
2.68
2.80
2.92
3.03
3.13
3. 24
3.34
3.43
3.53
3.62
4.0
2.78
2.90
3.02
3. 13
3. 24
3.35
3.45
3.55
3.65
3.74
4.2
2.87 3.00
3.12
3.24
3.35
3.46
3.57
3.67
3.77
3.87
4.4 2.96
3.09
3. 22
3.34
3.46
3.57
3.68 3.79
3.89
3.99
4.6
3.05
3.18
3.31
3.44
3.56
3.68 3.79
3.90
4.01
4.11
4.8
3.14
3.28
3.41
3. 54
3.66
3.78
3.90
4.01
4.12
4. 23
ம்ம்ம்ம்ம்
5.0
5.2
5.4
5. 6
5.8
0240 00
3.22
3.37
3.50
3.64
3.76
3.89
4. 01
4.12
4. 24
4.35
3.31
3.45 3.60
3.73 3.86
3.99
4.11
4.23
4.35
4.46
3.39
3.54 3.69
3.83
3.96 4.09
4.22
4.34
4.46
4.57
3.48
3.63 3.78 3.92
4.06
4.19
4.32
4.45
4.57
4. 69
3.56
3.72 3.87
4.01
4.15
4.29
4. 42
4. 55
4.68
4.80
6.0
3.64
3.80 3.96
4.11
4.25
4.39
4.52
4.65
4.78
4.91
6.2 3.72
3.88
4.04
4.20
4. 34
4.49 4.62 4.76
4.89
5.02
6.4
3.80
3.97
4.13
4. 29
4. 44
4.58
4.72
4.86
4.99
5. 12
6. 6
3.88
4.05
4. 22
4.37
4.53
4.68
4. 82
4.96
5.10
5. 23
6.8
3.96
4. 13
4.30
4.46
4.62
4.77
4.92
5.06
5.20
5.33
77880
7.0
4.03
4. 21
4.38
4.55
4.71
4. 86
5. 01
5.16
5.30
5. 44
7.5 4.22
4. 41
4.59
4.76
4.93
5.09
5. 25
5.40
5.55
5.69
8.0
4.41
4.60
4.79
4.97
5.15
5.32
5.48
5.64
5.79
5.94
8.5 4.59
4.79
4.99
5. 18
5.36
5. 54
5.71
5.87
6.03
6.19
9.0
4.77
4.98
5. 18
5.38
5.57
5.75
5.93
6.10.
6. 27
6.43
9.5
6.67
4.94
6.50
5. 16
6.32
5.37
6.15
5.58 5.77
5.96
530
HYDRAULIC TABLES
Table 43.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.100-Continued

8
.01
.02
.03
.04
.05
.06
.07
.08
.09
09.1
.10
↑
0.2
0.51
0.72
0.88
1.02
1. 14
1.24
1.34
1.44
1.52
1. 61
0.4
.81
1. 14
1.40
1.61
1.80
1.98
2. 13
2. 28
2.42
2.55
0.6
1.06
1.49
1.83
2. 11
2.36
2.59
2.80
2.99
3. 17
3.34
0.8
1.28
1.81
2. 22
2. 56
2.86
3. 14
3.39
3.62
3.84
4.05
1.0
1.2
1.4
1.6
1.8
O2 6 00
1.49
2.10
2.57
2.97
3.32
3. 64
3.93
4.20
4. 46
4.70
1.68
2.37
2.91
3.36
3.75
4. 11
4. 44
4.75
5.03
5. 31
1.86
2. 63
3. 22
3.72
4. 16
4. 56
4.92
5. 26
5.58
5.88
2.03
2.87
3. 52
4.07
4. 55
4.98
5.38
5.75
6.10
6.43
2.20
3.11
3.81
4. 40
4.92
5. 39
5.82
6. 22
6.60
6.95
2.0
2.36
3.34
4.09
4.72
5. 27
5.78
6. 24
6.67
7.08
7.46
2.2 2.51
3.55
4.35
5.03
5. 62
6. 16
6.65
7.11
7.54
7.95
2.4 2.66
3.77
4.61
5. 33
5. 96
6.52
7.05
7.53
7.99
8.42
2.6 2.81
3.97
4.87
5.62
6. 28
6.88
7.43 7.95
8.43
8.89
2.8
2.95
4. 17
5. 11
5.90
6.60
7.23
7.81
8.35
8.86 9.34
3.0
3.09
4.37
5.35
6. 18
6.91
7.57
8. 18
8.74
9.27
9.77
3.2
3. 23
4. 56
5.59
6. 45
7.22
7.90
8. 54
9. 13
9.68
10.20
3.4
3.36
4.75
5.82
6.72
7. 51
8. 23
8.89
9.50
10.08
10.63
3.6
3.49
4.94
6.05
6.98
7.80
8.55
9.23
9.87
10.47
11.04
3.8
3.62
5. 12
6. 27
7. 24
8.09
8.86
9.57
10.23
10.86
11.44
4.0
3. 74
5.30
6. 49
7.49
8.37
9. 17
9.91
10.59
11. 23
11.84
4.2
3.87
5.47
6.70
7.74 8.65
9.48
10.23
10.94
11.60
12. 23
4.4
3.99
5. 64
6.91
7.98
8.92
9.77
10. 56
11.29
11.97
12. 62
4.6
4. 11
5.81
7.12
8. 22
9.19
10.07
10.87
11.63
12.33
13.00
4.8
4. 23
5.98
7.32
8.46
9.46
10.36
11. 19
11.96
12.69
13.37
5.0
4. 35
6. 14
7.53
8.69 9.72
10.64
11.50 12.29
13.04
13.74
5.2
4. 46
6. 31
7.73
8.92
5.4
4.57
6.47
7.92
9.15
9.97 10.93
10.23 11.20
11.80 12.62 13.38
14.10
12.10
12.94
13. 72
14.46
5.6 4.69
6.63
8. 12
9.37 10.48
11.48
12.40
13.25 14.06
14.82
5.8
4.80
6.78
8.31
9.59 10.73
11.75
12.69
13.57 14.39
15. 17
6.0
4. 91
6.94
8.50 9.81
10.97
12.02
12.98
13.88 14.72
15.52
6.2
5.02
7.09
8.69 10.03
11. 21
12.28
13. 27
14.18 15.05
15.86
6.4
5. 12
7.24 8.87 10.24
11.45
12, 55
13. 55
14.49
15.37 16.20
6.6
5. 23
7.39
9.06 10.46
11.69
12.81
13.83
14.79
15.69
16.53
6.8
5. 33
7.54 9.24 10.67
11.93
13.06
14. 11
15.09
16.00
16.87
7.0
5. 44
7.5
5.69
7.69
9.42
8.05 9.86 11.39
10.88
12. 16
13.32
14. 39
15.38
16. 31
17.20
12.73
13.95
15.06
16. 10
17.08
18.00
8.0
5.94
8.41 10.30 11.89
13. 29
14.56
15.73
16.81
17.83
18.80
8.5
6.19
8.75 10.72 12.38
13.84
15. 16
16. 37
17.51
18.57
19.57
9.0
6. 43
9.09
11.14 12.86
14.38
15.75
17.01
18. 19 19. 29
20.33
9.5
21.08
6.67
17.64 18.85 | 20.00
9.43 | 11.55 | 13.33
16.33
14.90
HYDRAULIC TABLES
531
Table 43.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.100-Continued



0020
.00005 .00010 .00015.00020.00025.00030.00035.00040.00045
|
0040
| .00050
10
0.49
0.69 0.84
0.98
1.09
1. 19
1.29 1.38
1.46
1.54
11
.52
.73
.90
1.04
1.16
1.27
1.38
1.47
1.56
1. 64
12
.55
.78
.95
1.10
1. 23
1.35
1.46
1.56
1.65
1.74
13
.58
.82
1.01
1. 16
1.30
1.42
1. 54
1.64
1.74
1.84
14
.61
.86
1.06
1. 22
1.36
1.50
1.61
1.73
1.83
1.93
15
64
.90
1.11
1.28
1.43
1.57
1.69
1.81
1.92
2.02
•
16
.67
.94
1.16
1.33
1.49
1.63
1.77 1.89
2.00
2.11
17
.69
.98
1.20
1.39
1.55
1.70
1.84 1.96
2.08
2.20
18
.72
1.02
1.25 1.44
1.61
1.77
1.91 2.04
2.17
2.28
19
.75
1.06
1.30 1.50
1.67
1.83
1.98
2.12
2,24
2.37
20
.77
1.09
1.34 1.55
1.73
1.90
2.05
2. 19
2. 32
2.45
21
.80
1. 13
1.39
1.60 1.79
1.96
2.12
2.26
2.40
2.53
22
.82
1. 17
1.43
1.65
1.84
2.02
2. 18
2.33
2. 47
2. 61
સ
23
.85
1.20
1. 47
1.70 1.90
2.08
2.25
2.40
2.55
2.69
24
.87
1.24
1.51
1.75 1.95
2. 14
2.31
2.47
2.62
2.76
25
26
27
28
29
30
31
33
34
RRERO A**** *8588 GE*** ****
.90
1.27
1.56
1.80 2.01
2.20
2.38
2. 54
2.70
2.84
.92
1,30
1.60
1.84
2.06
2. 26
2. 44
2.61 2.77
2.92
.95
1.34
1.64 1.89
2,11
2,32
2,50
2,67
2.84
2.99
.97 1.37
1.68 1.94
2.17
2.37
2.56
2.74 2.91
3.06
.99
1.40
1.72
1.98
2.22
2. 43
2.62
2.81
2.98
3. 14
1.01
1.43
1.76
2. 03
2.27
·
2.49
2.68
2.87
3. 04
3. 21
1.04
1.47
1.80
2.07
2.32
2.54 2.74
2.93
3. 11
3.28
32
1.06
1.50
1.83
2. 12
2.37
2.59 2.80 3.00
3. 18
3.35
1.08
1. 53
1.87
2.16
2. 42
2.65 2.86
3.06
3.24
3.42
1.10
1. 56
1.91
2. 21
2.47
2.70 2.92
3. 12
3. 31
3.49
35
1.12
1.59
1.95
2.25
2.51
2.75
2.97
3.18
3.37
3.56
36
1. 15
1.62
1.98
2. 29
2.56
2. 81
3.03
3.24
3. 44
3.62
37
1.17
1.65 2.02
2. 33
2.61
2.86
3.09
3.30
3.50
3.69
38
1.19
1.68 2.06
2.38
2.66
2.91
3. 14
3.36
3.56
3.76
39 1.21
1.71
2.09
2.42
2.70
2.96
3.20
3.42
3.63
3.82
40
1.23
1.74
2. 13
2. 46
2.75
3. 01
3.25
3.48
3.69
3.89
41
1.25 1.77
2. 16
2.50
2.79
3. 06
3.31
3.53
3.75
3.95
42 1.27 1.80
2.20
2. 54
2.84
3.11
3.36
3.59
3.81
4. 01
43 1.29
1.82
2,23
2.58
2.88
3. 16
3.41
3.65
3.87
4.08
44 1.31 1.85
2.27
2.62
2.93
3. 21
3.46
3.70
3.93
4. 14
45 1.33 1.88
2.30
2.66
2.97
3. 26
3.52
3.76
3.99
4. 20
46
1.35 1.91
2. 34
2.70
3.02
3.30
3.57
3.82
4.05
4. 27
47 1.37
1.94
2.37
2.74
3.06
3.35
3. 62
3.87
4. 11
4.33
48
1.39
1.96
2.40 2.78 3.10
3.40
3. 67
3.93
4. 16
4,39
49 1.41
1.99 2.44
2.81
3.15
3.45
3.72
3.98
4. 22
4. 45
1
50
4. 51
1.43
4. 28
2.02
4. 03
2.47
3.77
2.85
3.19 3.49
532
HYDRAULIC TABLES
Table 43.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.100-Continued



.00055
.00060
.00060.00065 .00070.00075.00080.00085.00090.00095 .00100
|
36
37
38
40
41
45
46
47
48
49
CERIE D***2 22832 32~** S**** ***** ***** *****
10
1.62
1.69
1.76 1.82 1.89 1.95
2.01
2. 07
2. 13
2. 18
11
1.72
1.80
1.87
1.94
2.01
2.08
2.14
2.20
2. 27
2.32
12
1.83
1.91
1.99
2.06
2. 13
2.20
2. 27
2.34
2.40
2.46
13
1.93
2. 01
2.09
2. 17
2. 25
2.32
2.40
2.46
2. 53
2.60
14
2.02
2. 11
2. 20
2.28
2.36
2. 44
2.52
2.59
2.66
2.73
15
2. 12
2. 21
2.30
2.39
2.48
2.56
2. 64
2.71
2.79
2.86
16
2. 21
2.31
2. 41
2.50 2.58
2. 67
2.75
2.83
2.91
2.98
17
2.30
2. 41
2.50
2.60 2.69
2.78
2.86
2.95
3.03
3. 11
18
2.39
2.50
2.60
2.70
2.80
2.89
2.98
3.06
3. 15
3. 23
19
2.48
2.59
2.70
2.80
2.90
2.99
3.08
3.17
3. 26
3.35
20
2.57
2.68
2.79
2.90
3.00
3.10
3. 19
3.28
3.37
3.46
21
2.65
2.77
2.88
2.99
3.10
3. 20
3.30
3.39 3.49
3.58
2.74
2.86
2.97
3.09
3.20
3.30
3.40
3.50 3.60
3.69
2.82
2.94
3.06
3. 18
3.29
3.40
3.50
3.61
3.70
3.80
24
2.90
3.03
3. 15
3. 27
3.39
3.50
3.60
3.71
3.81
3.91
25
2.98
3. 11
3. 24
3.36
3.48
3.59
3.70
3.81
3.92
4.02
26
3.06
3. 19
3. 32
3.45
3.57
3.69
3.80
3.91
4. 02
4. 12
27
3. 14
3. 28
3. 41
3. 54
3.66
3.78
3.90
4. 01
4. 12
4. 23
28
3. 21
3.36
3.49
3. 63
3.75
3.88
3.99
4. 11
4. 22
4. 33
29
3.29
3.44
3.58
3.71
3.84
3.97
4.09
4. 21
4.32
4. 44
30
3.36
3. 51
3.66
3.80
3.93
4.06
4. 18
4.30
4. 42
4. 54
31
3. 44
3.59
3.74
3.88
4.02
4. 15
4. 28
4.40
4.52
4.64
32
3.51
3.67 3.82
3.96
4. 10
4. 24
4. 37
4.49
4.62
4.74
33 3.59
3.74
3.90
4.04
4. 19
4. 32
4.46
4.59
4.71
4. 83
34
3.66 3.82
3.98
4. 13
4. 27
4. 41
4. 55
4. 68
4.81
4.93
35
3.73
3.89
4. 05
4. 21
4. 35
4.50
4. 64
4.77
4.90
5. 03
3.80
3.97
4. 13
4.29
4. 44
4.58
4.72
4.86
4.99
5. 12
3.87
4. 04
4. 21
4. 37
4. 52
4. 67
4.81
4.95
5. 09
5. 22
3.94
4. 11
4. 28
4. 44
4.60
4.75
4.90
5.04
5. 18
5. 31
39 4.01
4. 19
4.36
4. 52
4.68
4.83
4.98
5. 13
5.27
5. 40
4.08
4.26
4. 43
4.60
4.76
4.92
5.07
5. 21
5.36
5.50
4. 14
4.33
4.50
4. 67
4.84
5.00
5. 15
5.30
5. 45
5.59
42
4. 21
4. 40
4. 58
4.75
4.92
5.08
5. 23
5.39
5.53
5. 68
43
4. 28
4. 47
4. 65
4.83
4.99
5. 16
5.32
5.47 5.62
5.77
44
4. 34
4. 54
4.72
4.90
5.07
5. 24
5.40
5.56
5.71
5.86
4. 41
4.61
4.79
4.97
5. 15
5.32
5. 48
5.64
5.79
5.95
4. 47
4. 67
4.86
5. 05
5. 22
5..40
5.56
5.72
5.88
6. 03
4.54
4. 74
4.93
5. 12
5.30
5. 47
5. 64
5. 81
5.97
6. 12
4. 60
4.81
5.00
5. 19
5.37
5.55
5.72
5.89
6.05
6. 21
4. 67
4.87
5.07
5. 26
5.45
5.63
5.80
5.97
6. 13
6. 29
50
6.38
4.73
6. 22
4. 94
6.05
5. 14
5.88
5.34
5.70
5.52
HYDRAULIC TABLES
533
T
Table 43.-Velocity of water, v, in feet per second, based on
Manning's formula v=
1.486
n
r2/31/2
n=.100
Continued


8
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045
.0050
35
36
37
38
39
40
41
43
46
47
48
PERRI 49202 22232 235KR AHCH** *800 SERIE 49549
10
2. 18
2.67
3.08
3.45
3.78
4.08
4.36
4. 63
4.88
11
2.32
2.85
3. 29
3. 67
4. 03
4. 35
4. 65
4.93
5.20
12
2. 46
3.02
3.48
3.89
4. 27
4. 61
4.93
5. 22
5. 51
13
2.60
3. 18
3. 67
4. 11
4.50
4.86
5.20
5.51
5.81
14
2.73
3.34
3.86
4. 32
4.73
5.11
5.46
5.79
6. 10
15
2.86
3.50
4.04
4.52
4.95
5. 35
5.72
6.06
6.39
16
2.98
3.65
4. 22
4.72
5. 17
5.58
5.97
6. 33
6. 67
17
3. 11
3.81
4. 39
4. 91
5.38
5.81
6. 21
6. 59
6.95
18
3. 23
3.95
4.56
5.10
5.59
6.04
6. 46
6.85
7.22
19
3.35
4.10
4. 73
5. 29
5.80
6.26
6. 69
7.10
7.48
20
3.46
4. 24
4.90
5.47
6.00
6. 48
6.92
7.34
7.74
21
3.58
4. 38
5.06
5.66
6.20
6. 69
7. 15
7.59
8.00
3.69
4.52
5. 22
5.83
6.39
6.90
7.38
7.83
8. 25
3.80
4. 65
5.37
6.01
6.58
7. 11
7.60
8.06
8.50
24
3.91
4.79
5.53
6. 18
6.77
7.31
7.82
8.29
8.74
4.02
4.92
5. 68
6.35
6. 96
7.52
8.04
8.52
8.98
26
4. 12
5.05
5.83
6. 52
7.14
7.72
8. 25
8.75
9.22
27
4. 23
5. 18
5.98
6. 69
7.33
7.91
8.46
8.97
9.46
28
4. 33
5. 31
6. 13
6.85
7.51
8. 11
8.67
9. 19
9.69
29
4. 44
5. 43
6. 27
7.01
7.68
8.30
8.87
9. 41
9.92
30
4. 54
5. 56
6. 42
7.17
7.86
8.49
9.07
9.62
10.14
31
4. 64
5.68
6.56
7.33
8.03
8.68
9.27
9.84
10. 37
32
4.74
5.80
6.70
7.49 8.20
8.86
9.47
10. 05
10.59
33
4.83
5.92
6.84
7.64
8.37
9.04
9.67
10. 26
10.81
34 4.93
6.04
6. 97
7.80
8.54
9. 23
9.86
10.46
11.03
5. 03
6. 16
7.11
7.95
8.71
9.41
10.06
10.67
11. 24
5. 12
6. 27
7.25
8. 10
8.87
9.58
10. 25
10.87
11.46
5. 22
6.39
7.38
8. 25
9.04
9.76
10.44
11.07
11.67
5.31
6.51
7.51
8.40
9.20
9.94
10.62
11. 27
11.88
5.40
6.62
7.64
8.54
9.36
10. 11
10.81
11.46
12.08
5.50
6.73 7.77
8.69
9.52
10. 28
10.99
11.66
12. 29
5.59 6.84 7.90
8.83
9.68
10.45
11. 17
11.85
12.49
42 5.68
6.95
8.03
8.98
9.83
10.62
11.36
12.04
12.70
5.77 7.06
8.16
9. 12
9.99
10.79
11.54
12. 24
12.90
44
5.86
7.17 8.28
9.26
10. 14
10.96
11.71
12. 42
13. 10
5.95
7.28 8.41
9.40
10.30
11. 12
11.89
12. 61
13. 29
6.03 7.39 8.53
9.54
10.45
11.29
12.07
12.80
13. 49
6. 12
7.50 8.65 9.68
10.60
11. 45
12. 24
12.98
13.68
6. 21
7.60 8.78 9.81
10.75
11. 61
12. 41
13. 17
13.88
6. 29
7.71 8.90
9.95
10.90
11.77
12.58
13. 35
14. 07
50
14.26
6.38
13.53
7.81 9.02
12.76
10.08
11.93
11.05
534
HYDRAULIC TABLES
Table 43.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.100-Continued

.0055
.0060
.0065
.0070
.0075
.0080
.0085
.0090
.0095
.0100
T
10
5. 12
5. 34
5. 56
5.77
5.97
6. 17
6.36
6. 54
6.72
6.90
11
5.45
5.69
5.93
6. 15
6. 37
6.57
6.78
6.97
7. 16
7.35
12
5.78
6.03
6.28
6. 52
6.75
6.97
7. 18
7.39
7.59
7.79
13
6.09
6.36
6.62
6.87
7.12
7.35
7.57
7.79
8.01
8. 22
14
6.40
6.69
6.96
7.22
7.48
7.72
7.96
8. 19
8.41
8.63
15
6.70
7.00
7.29
7.56
7.83
8.08
8.33
8.57
8.81
9.04
16
7.00
7.31
7.61
7.89
8. 17
8.44
8.70 8.95
9.20
9.44
17
7.29
7.61
7.92
8. 22
8.51
8.79
9.06 9.32
9.58
9.82
18
7.57
7.91
8.23
8. 54
8.84
9. 13
9.41 9.68
9.95
10.21
19
7.85
8.20
8.53
8.85
9. 16
9.46
9.76 10.04
10.31
10.58
20
8. 12
8.48
8.83
9. 16
9.48
9.79
10.09
10.39
10.67
10.95
21
8.39
8.76
9. 12
9.46
9.80
10.12
10.43
10. 73
11.02
11.31
22
8.65
9.04
9.41
9.76
10. 10
10.44
10.76
11.07
11.37
11.67
23
8.91
9.31
9.69
10.06
10.41
10.75
11.08
11.40
11.71
12.02
24
9. 17
9.58
9.97
10.34
10.71
11.06
11.40
11.73 12.05
12.36
26
KOKAR SAC** ---88 74*** *****
2222
25 9.42
9.84
10.24
10. 63
11.00
11.36
11.71
12.05
12.38
12.71
9.67
10.10
10. 51
10.91
11.29
11.66
12.02
12.37
12.71
13.04
27
9.92
10.36
10.78
11. 19
11.58
11.96
12. 33
12.69
13.04
13.37
28
10. 16
10. 61
11.05
11.46
11.87
12. 26
12. 63
13.00
13. 36
13.70
29
10.40
10.86
11.31
11. 74
12. 15
12.55
12.93
13.31
13.67
14.03
10. 64
11. 11
11.57
12.00
12.43
12. 83
13. 23
13.61
13.98
14. 35
31
32
10.88
11.36
11.82
12. 27
12.70
13. 12
13. 52
13.91
14. 29
14.66
11. 11
11.60
12.08
12. 53
12.97
13.40
13. 81
14.21
14. 60
14.98
33
11.34
11.84
12.33
12.79
13. 24
13.67
14. 10
14.50
14.90
15. 29
34
35
36
11.57
12.08
12. 57
13.05
13. 51
13.95
14.38
14.80
15. 20
15. 60
11.79
12. 32
12.82
13.30
13.77
14. 22
14.66
15.08
15.50
15.90
12.02
12. 55
13.06
13.56
14. 03
14. 49
14. 94
15. 37
15. 79
16, 20
12. 24
12.78
13.30
13.80
14. 29
14.76
15. 21
15. 65
16.08
16. 50
12.46
13.01
13.54 14.05
14.55
15.02
15. 49
15.93
16. 37
16.80
12. 67
13. 24
13.78
14.30
14.80
15. 29
15.76
16. 21
16.66
17.09
40
12.89
13.46
14.01
14. 54
15.05
15. 55
16.02
16.49
16.94
17.38
41
13.10
13. 69
14.25
14.78
15.30
15.80
16.29
16. 76
17.22
17.67
42
13. 32
13.91
14. 48
15.02 15.55
16.06
16.55
17.03
17.50
17.95
43
13.53
14. 13
14.70
15.26
15.80
16.31
16.82 17.30
17.78
18. 24
44 13.74
45
46
14.35
14.93
15.50
16. 04
16. 57
17.08 17.57
18.05
18.52
13.94
14.56 15. 16
15. 73
16. 28
16.82
17.33
17.84
18.32
18.80
14. 15
14.78
15. 38
15. 96
16. 52
17.06
17.59
18. 10
18.59
19.08
14.35
14.99
15.60
16. 19
16.76
17.31
17.84
18.36
18.86
19.35
48
14.56
15. 20
15.82
16. 42
17.00
17.55
18.09
18.62
19. 13
19.63
49
14.76
15. 41
16. 04
16. 65
17.23
17.80 18.35
18.88
19.39
19.90
50
20. 17
14.96
19.66
15. 62
19. 13
16. 26
18. 59
16.87 17.47
18. 04
HYDRAULIC TABLES
535
Table 43.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v=· -r2/3g1/2
n
n=.100-Continued

$
.01
.02
.03
.04
.05 .06
.07
.08
.09
.10
T
10
6.90
9.75
11.95
13.79
15. 42
16.90
18.25
19. 51
20.69
21.81
11
7.35
10.39
12.73
14.70
16. 43
18.00
19.45
20.79
22.05
23. 24
12
7.79
11.02
13.49 15.58
17.42
19.08
20.61
22.03
23.37
24. 63
13
8.22
11.62
14.23
16.43
18.37
20.12
21.74
23. 24
24. 65
25.98
14
8.63
12. 21
14.95
17.26
19.30❘
21. 14
22.84
24.41
25.90
27.30
**=*= 2*23*
15
9.04
12.78
15.65
18.08
20. 21
22. 14
23.91
25. 56
27.11
28.58
16
9.44
13. 34
16.34
18.87
21. 10
23.11
24.96
26.69
28.31
29.84
17
9.82
13.89
17.02
19.65
21.97
24. 07
25.99
27.79
29.47
31.07
18
10. 21
14.43 17.68
20.41
22.82
25.00
27.00
28.87
30.62
32. 28
19
10.58
14.96
18.33
21. 16
23.66
25.92
27.99
29.93
31.74
33.46
20 10.95
15. 48
18.96
21.90
24.48 26.82
28.97
30.97
32.85
34.62
21
11.31
16.00
19.59
22.62
25.29 27.71
29.93
31.99 33.93
35.77
11. 67
16. 50
20. 21
23.33 26.09
28.58
30.87
33.00 | 35.00
36.89
12.02
17.00
20.82
24. 04
26.87
29.44
31.80
33.99 36.05
38.00
24
12. 36
17.49
21.42
24.73
27.65
30.29
32.71
34.97
37.09
39. 10
25
12.71
17.97
22. 01
25.41
28. 41
31. 12
33. 61
35.94
38. 12
40. 18
26
13.04
18.44
22.59
26.08
29.16
31.95
34. 51
36.89
39. 13
41. 24
27
13. 37
18.91
23. 16
26.75
29.91
32.76
35.38
37.83
40.12
42. 29
28
13.70
19.38
23.73
27.40 30.64
33.56
36.25
38.76
41. 11
43.33
29
14.03
19.84
24. 29
28.05 31.36
34.36
37.11
37.11 39.67
42.08
44.36
30
14.35
20.29
24.85
28.69
32.08
35. 14
37.96 40.58
43.04
45.37
31
14.66
20.74
25.40 29.33
32.79
35.92
38.80 | 41.48
43.99
46. 37
32
14.98
21.18
25.94
29.96
33.49
36.69 39.63 42.36
44. 93
47.36
33
15. 29
21. 62
26.48
30.58
34. 19
37.45 40.45 43.24
45.87
48.35
34
15. 60
22.06
27.01
31. 19
34.87
38.20 | 41, 26 | 44. 11
46. 79
49.32
35
15.90
22,49
27.54
31.80
35.55
38.95 42.07
44.97
47. 70
50.28
36 16.20
22.91 28.06
32.40
36. 23
39.69 | 42.86 45.82
48.60
51.23
37 16.50
23.33
28.58 33.00
36.90 | 40.42 | 43.66 | 46.67
49.50
52. 18
38
16.80
23.75
29.09
33.59
37.56 41. 14 44. 44 47.51
50.39
53. 11
39
17.09
24. 17
29.60
34. 18
38. 21 | 41.86 | 45. 21
48.34
51. 27
54. 04
40
17.38
24.58 30.10
34.76
38.86 42.57
45.98 | 49. 16
52. 14
54.96
41
17.67
24.99 30.60
35. 34
39.51 43.28
46.75 49.98
53.01
55.87
42
17.95
25. 39
31.10
35.91
43
18. 24
25.79
31.59
36.48
40. 15 | 43. 98 47.50
40.78
50.78
53.86
56.78
44.68 | 48.26
51.59 54.72
57.68
44
18.52
26. 19
32.08
37.04 41.41
45.37 49.00
52.38 55.56
58.57
45
18.80
26. 59
32. 56
37.60 | 42.04
46.05
49.74
53. 17
56.40
59.45
46
19.08
26.98
33.04
38. 16
42.66
46.73
50.47
53.96
57.23
60.33
47 19.35
27.37
33. 52
38.71
43.27 47.41
51.20
54. 74
58.06 61.20
48
19.63
27.76
33.99
39.25
49
19.90
28. 14
34.46 39.80
43.89 48.08 51.93
44.49 48.74
55. 51
58.88 62.06
52.65
56. 28
59.69
62.92
50
63.78
20.17
60.50
28. 52 34.93 40.34 45. 10 49.40
57.04
53.36
536
HYDRAULIC TABLES
Table 44.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= 2/31/2
n=.125

8
.00005
.00010 .00015 .00020.00025.00030.00035.00040.00045.00050
0.2
0.03 0.04
0.05
0.06
0.06
0.07
0.08
0.4
.05
0.08
.06
.08
•
0.6
· 09
0.09
0.09
.10
. 11
. 12
. 13
.14
.06
.08
.14
.10
.12
. 13
. 15
.16
0.8
.17
.07
.18
.10
.19
.13
.14
. 16
1.0
.08
12
15
•
.17
19
•
1.2
·
.09
.13
.16
19
.21
1.4
.11
. 23
.18
21
. 22
25
19
•
.20
. 22
. 23
24
.25
·
.27
•
. 27
.28
.15
.30
.18
21
.24
.26
1.6
.28
.30
.32
.11
.16
.20
.33
. 23
26
.28
1.8
.30
.33
.12
.34
.18
.36
22
·
.25
.28
.30
.33
.35
.37
.39
2.0
.13
.19
23
•
. 27
.30
.33
2.2
. 35
•
.38
.14
.20
.25
.40
28
•
.32
· 42
.35
2.4
.38
.15
.40
.43
.21
.45
.26
.30
.34
•
2.6
.37
40
.43
.16
•
.45
.22
.48
.28
.32
.36
2.8
.39
.17
.42
.45
.24
•
.48
.50
.29
.33
.37 .41
.44
.47
.50
.53
3.0
.17
25
•
.30
.35
.39
.43
3.2
.46
.49
.18
.52
.26
.32
.55
.37
.41
45
3.4
.19
•
48
•
.52
.55
•
.27
.58
.33
.38
43
.47
3.6
.50
.54
.20
.57
.28
.34
.60
.39
3.8
.20
· 44
.48
.52
.56
29
•
.35
.41
.46
.50
.54
.58 .61
.59
.62
.65
4.0
.21
.30
.37
.42
.47
.52
4.2
.22
.56 .60
.64
.31
.38
.67
.44
.49
.54
.58
4.4
.23
.62
.32
.66
.39
.69
.45
.50
.55
4.6
.60
.23
33
.64
.68
•
.40
4.8
. 47
.71
.52
.57
62
•
.24
66
.34
.70
.74
.41
.48
.53
.59
.63
.68
.72
.76
5.0
25
•
.35
.43
.49
.55
.60
5.2
.65
25
.70
.36
.74
.44
.78
.50 .56
62
5. 4
.67
.71
.26
.37
.45
.76
.80
52
•
.58
.63
5.6
.68
. 27
.73
.37
.78
.46
.82
.53
.59
.65
5.8
.70
.75
.27
.38
.80
.47
.84
.54
.61
.66
.72
.77
.81
.86
6.0
28
.39
.48
.56
.62
68
6.2
.73
.79
.28
.40
83
.49
.88
.57
.63
.69
6.4
. 29
.75
.80
.85
.41
.50
.90
.58
.65
.71
6.6
.77
.82
.30
42
.87
.92
.51
.59
.66
.72
6.8
.78
.30
.43
.84 .89
.52
.60
.67
.74
.94
.80
.85
.91
.95
7.0
.31
.44
.53
.62
.69
.75
.81
7.5
.32
.46
.87 .92
.97
.56
.64
.72
.79
8.0
.85 .91
.34
.48
.97
.58
1.02
.67
.75
.82
8.5
.89
.95
.35
1.01
.50
1.06
.61
.70 .78
9.0
.86
.93
.99
.36
1.05
.51
.63
1. 11
.73
.81
.89 .96
1.03
1.09
1. 15
9.5
1. 19
.38
1. 13
.53
1.07
•
65
1.00
.92
.75
84
.
HYDRAULIC TABLES
537
Table 44.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -72/3g1/2
n=.125—Continued

8
.00055
T
.00060 .00065 .00070.00075 .00080.00085 .00090.00095 .00100
0.2
0.10
0.10
0.10
0.11
0.4
0.11 0.11 0.12
0.12
.15
0.13
.16
0.13
. 16
.17
.18
.18
0.6
.19
.20
.19
.20
.21
.20
.22
.22
.23
.24
0.8
.25
.25
.24
.25
.26
.26
. 27
.27
.28
.29
.30
.31
.32
.32
1.0
28
•
.29
.30
. 31
.33
1.2
.31
.33
.34
.35
.36
.37
.34
.38
.36
37
·
.38
1.4
.39
.35
.40
.36
.41
.38
.42
.39
.41
.42
1.6
.43
.45
.38
.46
.40
.41
.47
.43
.45
.46
1.8
· 41
.47
.49
.43
.50
51
45
47
•
•
.48
.50
.51
.53
.54
.56
2.0
44
.46
.48
.50
.52
.53
.55
2.2
.47
.49
.51
.57
58
•
.53
.55
.60
. 57
.59
2.4
.60
.50
.62
.52
.64
54
.56
.58
.60
2.6
.62
.53
.55
.64
.57
.66
.67
.59
.62
2.8
.64
.66
.67
.55
.69
.58
.60
.71
.62
.65
.67
.69
.71
.73
.75
3.0
.58
•
61 .63
.65
.68
.70
3.2
.72
.74
.61
.76
.63
.78
.66
.68
.71
.73
.75
3.4
.77
.63
.80
.66
.69
.82
. 71
.74
.76
3.6
.78
.81
.65
.68
.83
.85
.71
.74
.76
.79
.81
3.8
.84
.68
.71
.86
.74
.88
.77
.79
.82
.84
.87
.89
.92
4.0
.70
.73
.76
79
.82
•
.85
4.2
.87
.73
.76
.79
.82
.90
.92
.95
.85
.88
4.4
.75
.93
.90
.95
.78
.81
.84
.98
.87
.90
4.6
.93
.96
.98
.77
.81
1.01
.84
.87
.90
4.8
.93
.96
.99
.79
1.01
.83 .86
1.04
.89
.93
.96
.99
1.01
1.04
1.07
5.0
.82
85
•
.89
.92
.95
.98 1.01
5.2
1.04
1.07
.84
.87
.91
1.10
.94
.98
1.01
1.04
5.4
1.07
.86
1.10
.90
.93
5.6
.97
1.13
1.00
1.03
1.07
1.10
.88
1.13
.92 .96
1.16
.99
1.03
1.06
1.09
1.12
5.8
.90
1.16
.94
•
.98
1. 19
1.02
1.05
1.09
1.12
1. 15
1.18
1.21
6.0
92
•
.96
1.00
1.04
1.07
1. 11
1. 14
6.2
1.18
1.21
•
94
.98
1.24
1.02
1.06
1.10
1. 13
1.17
6.4
1.20
.96
1.24
1.00 1.04
1.27
1.08
1.12
1.16
1. 19
6.6
1.23
1.26
.98
1.02
1.30
1.07
1. 11
1. 15
1.18
6.8
1.22
1.25
1.00
1.29
1.05
1.32
1.09
1. 13
1.17
1.21
1.24 1.28 1.32
1.35
7.0
1.02
1.07
1. 11
1. 15
1. 19
1.23
1.27
7.5
1.31
1.07
1.34
1.12
1.38
1.16
1. 21
1.25 1.29
8.0
1.33 1.37
1. 12
1.40
1. 16
1. 21
1.26
1.44
1.30
1.34 1.39
8.5
1.43
1.16
1.47
1.21
1.50
1.26
1.31
1.36
1.40 1.44
9.0
1.49
1.53
1. 21
1.57
1.26
1.31
1.36
1.41 1.45
1.50
1.54
1.59
1.63
9.5
1.25
1. 31
1.36
1.41 1.46
1.51
1.55
1.60
1.64
1.69
563189°—44-
-35
538
HYDRAULIC TABLES
Table 44.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
&
n=.125—Continued

.0010
.0015
,0020
.0025 .0030
.0035 .0040
.0045
.0050
0.2
0.13
0.16
0.18 0.20
0.22
0.24
0.26
0.27
0.29
0.4
.20
.25
.29
.32
.35
.38
.41
.43
.46
0.6
.27
.33
.38
.42
.46
.50
.53
.57
.60
0.8
.32
.40
.46
.51
.56
.61
.65
.69
.72
1.0
38
.46
53
•
.59
.65
.70
.75
80
.84
1.2
.42
.52
.60
.67
.74
.79
.85
.90
.95
1.4
.47
.58
.67
.74
.81
.88
.94
1.00
1.05
1.6
.51
.63
.73
.81
.89
.96
1.03
1.09
1.15
1.8
.56
.68
.79
.88
.96
1.04
1.11
1.18
1.24
2.0
.60
.73
.84
.94
1.03
1. 12
1.19
1.27
1.33
2.2
64
.78
·
.90
1.01
1.10
1.19
1.27
1.35
1.42
2.4
.67
.83
.95
1.07
1.17
1.26
1.35
1.43
1.51
2.6
.71
.87 1.01
1.12
1.23
1.33
1.42
1.51
1.59
2.8
.75
.91
1.06
1. 18
1.29
1.40
1.49
1.58
1.67
3.0
.78
.96
1.11
1.24
1.35
1.46
1.56
1.66
1.75
3. 2
.82
1.00
1. 15
1.29
1.41
1.53
1.63
1.73
1.83
3. 4
.85
1.04
1.20
1.34
1.47
1.59
1.70
1.80
1.90
3. 6
.88
1.08
1.25
1.40
1.53
1.65
1.77
1.87
1.97
3.8
.92
1.12
1.29
1.45
1.59
1.71
1.83
1.94
2.05
4.0
.95
1.16
1.34
1.50
1.64
1.77
1.89
2.01
2. 12
4.2
.98
1.20
1.38
1.55
1.69
1.83
1.96
2.08
2. 19
4.4
1.01
1.24
1.43
1.60
1.75
1.89
2.02
2. 14
2. 26
4. 6
1.04
1.27
1.47
1. 64
1.80
1.95
2.08
2.21
2.33
4.8
1.07
1.31
1.51
1,69
1.85
2.00
2. 14
2.27
2.39
5.0
1.10
1.35
1.55
1.74
1.90
2.06
2.20
2.33
2.46
5.2
1. 13
1.38
1.60
1.78
1.95
2. 11
2.26
2.39
2. 52
5.4
1. 16
1.42
1. 64
1.83
2.00
2. 16
2. 31
2.45
2.59
5. 6
1. 19
1.45
1.68
1.87
2.05
2. 22
2.37
2.51
2.65
5.8
1.21
1.49
1.72
1.92
2.10
2.27
2.43
2.57
2. 71
6.0
1.24
1.52
1.76
1.96
2. 15
2.32
2.48
2. 63❘
2.78
6. 2
1.27
1.55
1.79 2.01
2.20
2.37
2.54
2.69
2.84
6.4
1.30
1.59
1.83
2.05
2. 24
2.42
2.59
2.75
2.90
6.6
1.32
1.62
1.87
2.09
2.29
2.47
2.65
2.81
2.96
6.8
1.35
1.65
1.91
2. 13
2. 34
2. 52
2.70
2.86
3.02
7.0
1.38
1.68
1.95
2. 18
2.38
2.57
2.75
2.92
3.08
7.5
1. 44
1.76
2.04
2. 28
2.49
2.69
2.88
3.06
3.22
8.0
1.50
1.84
2. 13
2.38
2.60
2.81
3. 01
3.19
3.36
8.5
1.57
1.92
2. 21
2. 48
2.71
2.93
3. 13
3.32
3.50
9.0
1.63
1.99
2.30
2.57
2.82
3.04
3.25
3.45
3.64
9.5
3.77
1.69
3.58
2.07
3.37
2. 38
3. 15
2.67
2.92
HYDRAULIC TABLES
539
Table 44.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v==
-r2/31/2
n
n=.125—Continued




.0055
.0060 .0065
.0070
.0075 .0080 .0085 .0090 .0095 .0100
0.2
0.30
0.31
0.33
0.34 0.35
0.4
.48
.50
.52
.54
.56
0.36 0.37 0.39
.58 .60 .61
0.40
0.41
.63
.65
0.6
63
.66
.68
•
.71
.73
.76 .78 .80
.82
.85
0.8
.76
.79
.83
.86
.89
.92
.94
.97
1.00
1.02
1.0
.88
.92
.96
.99
1.03
1.06
1.10
1.13
1.16
1. 19
1.2
1.00
1.04
1.08
1.12
1.16
1.20
1.24
1.27
1.31
1.34
1.4 1.10
1. 15
1.20
1.24
1.29
1.33 1.37 1.41
1.45
1.49
1.6
1.21
1.26
1.31
1.36
1.41
1.45
1.50 1.54
1.59
1.63
1.8 1.30
1.36
1.42
1.47
1.52
1.57
1.62
1.67
1.71
1.76
2.0 1.40
1.46
1.52
1.58
1.63 1.69
1.74
1.79
1.84
1.89
2.2 1.49
1.56
1.62
1.68
1.74
1.80
1.85
1.91
1.96
2.01
2.4
1.58
1.65
1.72
1.78
1.85
1.91
1.96
2.02
2.08
2. 13
2.6
1.67
1.74
1.81
1.88 1.95
2.01
2.07
2. 13
2.19
2.25
2.8
1.75
1.83
1.90
1.98
2.05
2.11
2. 18
2.24
2.30
2.36
3.0
1.83
1.92
1.99
2.07
2. 14
2. 21
2.28
2.35
2. 41
2.47
3.2
1.91
2.00
2.08
2. 16
2. 24
2.31
2.38
2.45
2.52
2.58
3.4
1.99
2.08
2.17
2.25
2.33
2.40
2.48
2.55
2.62
2.69
3.6
2.07
2.16
2.25
2.34
2.42
2.50
2. 57
2.65
2.72
2.79
3.8
2. 15
2. 24
2.33
2.42
2.51
2.59
2.67
2.75
2.82
2.89
4.0
2.22
2.32
2.42
2.51
2.59
2.68
2.76
2.84
2.92
3.00
4.4
4.2 2.30 2.40
2.37
2.49 2.59
2.68 2.77
2.85
2.94
3.02
3.09
2.47
2.57
2.67
2.76
2.86
2.94
3.03
3. 11
3.19
4.6
2.44 2.55
2. 65
2.75
2.85
2.94
3.03
3. 12
3.20
3.29
4.8 2.51
2.62
2.73
2.83
2.93
3.03
3. 12
3.21
3.30
3.38
5.2
5.4
5.6
5.8
1240 αD
5.0 2.58
2.69
2.80
2.91
3.01
3. 11
3.20
3.30
3.39
3.48
2.65
2.76 2.88
2.99
3.09
3. 19
3.29
3.39
3.48
3. 57
2.71
2.83
2.95
3.06
3. 17
3.27
3.37
3.47
3.57
3.66
2.78
2.90 3.02
3. 14
3.25
3.35
3.46
3.56 3.65
3.75
2.85
2.97
3.09
3. 21
3.32
3.43 3.54
3.64 3.74
3.84
6.0
2.91 3.04 3. 16
3.28
3.40
3.51
3.62
3.72
3.83
3.93
6.2 2.98 3.11
3.23
3.36
3.47
3.59
3.70
3.81
3.91
4. 01
6.4 3.04
3.17
3.30
3.43
3.55 3.67
3.78
3.89
3.99
4. 10
6.6
3.10
3.24
3.37
3.50 3.62 3.74
3.86
3.97
4.08
4. 18
6.8
3.16
3.31
3.44
3.57
3.70
3.82 3.93
4.05
4. 16
4. 27
7.0
3. 23
3.37
3.51
3. 64
3.77 3.89
4.01
4. 13
4. 24
4.35
7.5
3.38
3.53
3.67
3.81
3.94
4.07
4.20
4.32
4. 44
4.55
8.0
3.53
3.68
3.83
3.98
4. 12
4.25
4.38
4.51
4.63
4.76
8.5
3.67
3.84
3.99
4. 14
4.29 4.43
4. 56
4.70
4.83
4.95
9.0 3.81
3.98
4. 15
4.30
4.45
4.60
4.74
4.88
5.01
5. 14
9.5
5.33
3.95
5.20
4. 13
5.06
4.30
4.92
4.46
4.62 4.77
540
HYDRAULIC TABLES
Table 44.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= -r2/31/2
n
n=.125—Continued



8
.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2 0.41
0.57 0.70
0.81
0.91
1.00
1.08
1.15
1.22
1.29
0.4
.65
.91
1.12
1.29
1.44
1.58
1.71
1.83
1.94
2.04
0.6
.85
1.20
1.46
1.69
1.89
2.07
2,24
2.39
2. 54
2.67
0.8
1.02
1.45
1.77
2.05
2.29
2.51
2. 71
2.90
3.07
3. 24
1.0
1.2
1.4
1. 6
1.8
0244 ∞
1. 19
1.68
2.06
2.38
2.66
2.91
3.15
3.36
3.57
3.76
1.34
1.90
2.33
2.68
3.00
3.29 3.55
3.80
4.03
4.25
1.49
2. 10
2.58
2.98
3.33
3.64
3.94 4.21
4.46
4.70
1.63
2.30
2.82
3.25
3. 64
3.98
4.30
4.60
4.88
5. 14
1.76
2,49
3.05
3.52
3.93
4.31
4.65
4.98
5.28
5.56
2.0
1.89
2.67 3.27
3.77
4. 22
4.62
4.99
5.34
5.66
5.97
2.2
2.01
2.84
3.48
4.02
4.50
4.93
5.32
5.69 6.03
6.36
2.4
2.13
3.01
3.69 4.26
4.77
5.22
5.64
6.03
6.39
6. 74
2. 6
2.25
3.18
3.89
4.50
5.03
5. 51
5.95
6.36
6.74
7. 11
2.8
2.36
3.34
4.09
4.72
5.28
5.78
6.25
6.68
7.08
7.47
3.0
2.47
3.50
4. 28
4.95
5.53
6.06
6.54 6.99
7.42
7.82
3.2 2.58
3.65
4.47
5.16 5.77
6.32
6.83 7.30
7.74
8.16
3. 4
2.69
3.80
4.66
5.38 6.01
6.58 7.11 7.60
8.06
8.50
3. 6
2.79
3.95
4.84
5.58
6.24
6.84
7.39
7.90
8.38
8.83
3.8
2.89
4.09
5.01
5.79
6.47
7.09
7.66
8.19
8.68
9. 15
4.0
3.00
4. 24
5.19
5.99 6.70 7.34 7.93
8.47
8.99
9.47
4.2
3.09
4.38
5.36
4. 4
3.19
4.51
5. 53
6.38
4.6
3.29
4. 65
5.70
6.58
6.19 6.92 7.58 8.19
7.14 7.82 8.45
7.35 8.05 8.70
8.75
9.28
9.79
9.03 9.58
10.09
9.30
9.86
10.40
4.8
3.38
4.78
5.86
6.77
7.56
8.29 8.95 9.57
10.15
10.70
5.0
5.2
5. 4
5.6
5.8
00 ∞ 1 ZO
3.48
4.92
6.02
6.95
7.77
8.51
9.20 9.83 10.43
10.99
3.57
5.05
6. 18
7.14
7.98
8.74
9.44 10.09
10.70
11.28
3.66
5.17
6.34
7.32
8. 18
8.96 9.68 10.35
10.98
11.57
3.75
5.30
6.49
7.50
8.38
9.18 9.92 10.60
11.25
11.85
3.84
5.43
6.65
7.68 8.58
9.40
10.15
10.85
11.51
12. 14
6.0 3.93 5.55
6.80
6.2
4.01
5.67 6.95
8.02
7.85 8.78
8.97
9.62 10.39
11.10
11.78
12.41
9.83 10.61
11.35 12.04
12.69
6.4
4.10
5.80 7.10
8.20
9.16 10.04
10.84 11.59
12.29
12.96
6. 6
4.18
5.92 7.24
8.37
9.35❘ 10.25
6.8
4.27
6.03
7.39 8.53
9.54 10.45
11.07
11.29 12.07 12.80
11.83 12.55
13.23
13.49
7.0
4.35
6.15
7.53 8.70
9.73
10.66 11.51 12.30 13.05
13.76
7.5 4.55
6.44 7.89
9.11
10. 19
11.16
12.05 12.88 13.66
14.40
8.0
4.76
6.72 8.24 9.51
10.63
11.65
12.58
13.45
14. 27
15.04
8.5
4.95
7.00 8.58
9.90 11.07
12.13
13. 10
14.00
14.85
15.66
9.0
5.14
7.27 8.91
10.29
11.50
12.60
13.61
14.55 15.43
16.27
9.5
16.86
5.33
15.08 16.00
7.54
14.11
9.24 10.66 11.92
13.06
HYDRAULIC TABLES
541
T
Table 44.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/3g1/2
=.125—Continued

8
.00005
.00010
.00015 .00020.00025.00030.00035.00040.00045.00050
31
32
33
34
35
36
37
38
39
40
41
43
44
45
46
48
49
PIRII 12222 2228* *2222 8788* -8088 2**** *****
10
0.39
0.55
0.68 0.78
0.87 0.96 1.03 1.10
1.17
1.23
42
*
.59
.72 .83
.93
1.02
1.10 1.18
1.25
1.31
12
13
14
15
16
•
44
.62
►
.76
.88
.99
1.08
1.17 1.25
1.32
1.39
46
.66
.80
.93
1.04
1.14 1.23
1.31
1.39
1.47
.49
.69
.85
.98
1.09
1.20
1.29
1.38
1.46
1. 54
51
•
.72
.89
1.02
1.14
1.25
1.35
1.45
1.53
1.62
.53
.75
.92
1. 07
1.19
1.31
1. 41
1.51
1.60
1.69
17
.56
.79
.96
1.11
1. 24
1.36
1. 47
1.57
1.67
1.76
18
.58
.82 1.00
1. 15
1.29
1.41
1.53
1.63
1.73
1.83
60
.85
·
1.04
1.20
1. 34
1.47
1.58
1.69
1.80
1.89
20
62
.88
•
1.07
1. 24
1.38
1.52 1.64
1.75
1.86
1.96
21
•
64
.90
1. 11
1. 28
1.43
1.57
1.69
1.81
1.92
2.02
·
.66
.93
1. 14
1.32
1.48
1.62
1.75
1.87
1.98
2.09
23
.68
.96
1. 18
1.36
1.52
1.67 1.80
1.92
2. 04
2.15
24
.70
.99
1.21
1.40
1.56
1.71
1.85
1.98
2.10
2. 21
25
.72
1.02
1.24
1.44
1.61
1.76
1.90
2.03
2.16
2.27
26
.74
1.04 1.28
1.48
1.65
1.81
1.95
2.09
2.21
2.33
27
.76
1.07
1.31
1. 51
1.69
1.85
2.00
2. 14
2. 27
2. 39
28
.78
1.10
1.34
1.55
1.73
1.90
2.05
2. 19
2.33
2.45
29
.79
1. 12
1.37
1.59
1.77
1.94
2.10
2. 24
2.38
2. 51
30
.81
1.15
1.41
1.62
1.81
1.99
2. 15
2.30
2. 43
2.57
.83
1. 17
1.44
1.66
1.85
2.03
2. 19
2.35
2.49
2. 62
.85
1.20
1.47
1. 69
1.89
2.08
2. 24
2.40
2. 54
2. 68
.86
1. 22
1.50
1.73
1.93
2. 12
2. 29
2.45
2.59
2.73
.88
1.25
1.53
1.76
1.97
2.16
2.33
2.50
2.65
2. 79
.90
1.27
1.56 1.80
2.01
2.20
2.38
2.54
2.70
2. 84
.92
1.30
1.59 1.83
2.05
2. 24
2.42
2.59
2.75
2.90
.93
1.32
1.62
1.87
2.09
2. 29
2.47
2. 64
2.80
2.95
.95 1.34
1.65 1.90
2. 12
2.33
2. 51
2.69 2.85
3.00
.97
1.37
1.67 1.93
2.16
2.37
2.56
2.73
2.90
3.06
.98
1.39
1.70
1.97
2.20
2.41
2.60
2.78
2.95
3. 11
1.00 1.41 1.73
2.00
2. 23
2. 45
2.64
2.83
3.00
3.16
42 1.02 1.44 1.76 2.03
2.27
2.49
2.69
2.87
.3.05
3. 21
1.03
1.46 1.79 2.06
2.31
2. 53
2.73
2.92
3.10
3. 26
1.05 1.48 1.81 2.10
2.34
2. 57
2.77
2.96
3. 14
3.31
1.06 1.50 1.84
2. 13
2.38
2.61
2.81
3. 01
3. 19
3.36
1.08
1.53 1.87
2.16
2. 41
2. 64
2.86
3.05
3. 24
3.41
1.09
1.55
1.90
2. 19
2.45
2. 68
2.90
3.10
3. 28
3.46
1. 11
1.57
1.92
2. 22
2.48
2.72
2.94
3. 14
3.33
3. 51
1. 13
1.59
1.95
2.25
2. 52
2.76
2.98
3. 18
3.38
3.56
50
3. 61
1. 14
3.42
1.61
3. 23
1.98
3.02
2.28 2.55
2.79
542
HYDRAULIC TABLES
Table 44.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/3g1/2
-.125-Continued


.00055 .00060 .00065.00070 .00075.00080 | .00085 | .00090 | .00095 | .00100
T
23
27
2=221 49ERA 222** *ARAR A*88* 38588
1.29
1.35
1.41
1.46
1.51
1.56 1.61 1.66 1.70 1.74
1.38
1.44 1.50
1.56
1. 61
1.66
1.71
1.76 1.81
1.86
1.46
1.53
1.59
1.65
1.71
1.76
1.82
1.87
1.92
1.97
13
1.54
1.61
1.68
1.74
1.80
1.86
1.92
1.97
2.03
2.08
14
1.62
1.69
1.76
1.83
1.89
1.95
2.01
2.07
2. 13
2.18
15
1.70
1.77
1.84
1.91
1.98
2.05
2.11
2.17
2.23
2. 29
16
1.77 1.85 1.92
2.00
2.07
2. 14
2.20
2. 26
2.33
2.39
1.84
1.93 2.00
2.08
2. 15
2.22
2.29
2.36
2.42
2.49
18
1.91 2.00 2.08
2.16
2.24
2.31
2.38
2.45
2.52
2.58
1.99
2.07
2.16
2. 24
2.32
2.39
2.47
2. 54
2.61
2. 68
20
2.05
2.15
2.23
2.32
2.40
2.48
2.55
2.63
2.70
2.77
21
2.12
2. 22
2. 31
2.39
2.48
2.56
2.64
2.71
2.79
2.86
2. 19
2.29
2.38
2.47
2.56
2. 64
2.72
2.80
2.88
2.95
2.25
2.36
2.45
2.54
2.63
2.72
2.80
2.88
2.96
3.04
24 2.32
2.42
2. 52
2. 62
2.71
2.80
2.88
2.97
3.05
3. 13
25
2.38
2. 49
2.59
2.69 2.78
2.87
2.96
3.05
3. 13
3. 21
26
2.45
2.56
2.66
2.76
2.86
2.95
3.04
3.13
3. 22
3.30
2. 51
2.62
2.73
2.83
2.93
3.03
3. 12
3. 21
3.30
3.38
28
2.57
2.69
2.79
2.90
3.00
3.10
3.20
3.29
3.38
3.47
29
2.63 2.75
2.86
2.97
3.07
3. 17
3.27
3.37
3.46
3.55
30
2.69
2.81
2.93
3.04
3. 14
3. 25
3.35
3. 44
3. 54
3. 63
31
2.75
2.87
2.99
3.10
3. 21
3.32
3.42
3.52
3.62
3.71
32
2.81
2.94
2.05
3. 17
3. 28
3.39
3.49
3.59
3.69
3.79
33
2.87 3.00
3.12
3. 24
3.35
3.46
3.57
3.67
3.77
3.87
34
2.93
3.06
3. 18
3.30
3.42
3.53
3. 64
3.74
3.85
3.95
2.98
3. 12
3. 24
3.37
3.48
3.60
3.71
3.82
3.92
4.02
36
3.04
3.17
3.30
3. 43
3.55
3.67 3.78 3.89
3.99
4. 10
37
3. 10
3. 23
3.37
3.49
3.61
3.73 3.85
3.96
4.07
4. 17
3. 15
3.29
3. 43
3.56
3.68
3.80
3.92
4.03
4. 14
4. 25
39
3. 21
3.35
3.49
3.62
3.74
3.87
3.99
4. 10
4. 21
4. 32
40
3.26
3.41
3.54
3.68
3.81
3.93
4. 05
4. 17
4.29
4.40
41
3.31
3.46 3.60
3.74
3.87
4.00
4. 12
4. 24
4.36
4.47
42
3.37
3.52 3.66
3.80 3.93
4.06
4. 19
4. 31
4. 43
4. 54
43 3.42
3.57 3.72
3.86
4.00
4. 13
4. 25
4.38
4.50
4.61
44
3.47
3.63
3.78
3.92
4.06
4. 19
4.32
4.44
4.57
4.69
45
3.53 3.68
3.83
3.98
4. 12
4. 25
4.38
4. 51
4.64
4.76
46 3.58
3.74 3.89
4.04
4. 18
4.32
4.45
4.58
4.70
4.83
47 3.63 3.79
3.95
4. 10
4. 24
4.38
4. 51
4.64
4.77
4.90
48
3.68 3.85
4.00
4. 15
4.30
4.44
4.58
4.71
4.84
4.97
49
3.73
3.90
4.06
4. 21
4.36
4.50
4.64
4.78
4.91
5.03
50
5. 10
3.78 3.95
4,97
4.11 4.27
4.84
4.42
4.56 4.70
HYDRAULIC TABLES
543
T
Table 44.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= Lr2/31/2
n=.125-Continued

co
$
.0010
.0015
.0020
.0025 .0030
.0035 .0040
.0045
.0050
36
37
39
40
41
43
45
46
47
48
49
50
CIRIL B-E-A 8723* *2**R AM*** 38588 9**** ***** 8
10
1.74
2. 14
2.47
2.76
3.02
3.26
3.49
3.70
3.90
11
1.86
2. 28
2.63
2.94
3.22
3.48
3.72
3.94
4. 16
12
1.97
2.41
2.79
3. 12
3. 41
3.69
3.94
4. 18
4.41
13
2.08
2.55
2.94
3.29
3.60
3.89.
4. 16
4.41
4. 65
14
2.18
2.67
3.09
3.45
3.78
4.09
4.37
4.63
4.88
15
2.29 2.80
3.23
3.62
3.96
4. 28
4. 57
4.85
5.11
16
2.39
2.92
3.38
3.77
4. 13
4.47
4.77
5.06
5.34
2.49 3.04
3.51
3.93
4.30
4.65
4.97
5.27
5.56
18
2.58 3.16 3.65
4.08
4.47
4.83
5. 16
5.48
5.77
2.68
3.28
3.79
4. 23
4.64
5.01
5.35
5.68
5.99
20
2.77
3.39
3.92
4.38
4.80
5. 18
5.54
5.88
6.19
21 2.86
3.50
4.05
4.52
4.96
5. 35
5.72
6.07
6.40
22
2.95 3,61
4. 17
4.67
5. 11
5. 52
5.90
6.26
6.60
3.04
3.72
4.30
4.81
5.27
5.69
6.08
6.45
6.80
24
3. 13
3.83
4. 42
4.95
5. 42
5.85
6.26
6.64
6.99
25
3. 21
3.94
4.55
5.08
5.57
6.01
6. 43
6.82
7.19
26
3.30
4.04
4.67
5. 22
5.71
6. 17
6.60
7.00
7.38
27
3.38
4. 14
4.78
5.35
5.86
6.33
6.77
7.18
7.57
28
3.47
4.25
4.90
5.48
6.00
6.49
6.93
7.35
7.75
29
3.55
4.35
5.02
5.61
6. 15
6.64
7.10
7.53
7.93
30
3.63
4.45
5. 13
5.74
6.29
6.79
7.26
7.70
8.12
31 3.71
4. 54
5.25
5.87
6.43
6.94
7.42 7.87
8.30
32
3.79
4. 64
5.36
5.99
6.56
7.09 7.58
8.04
8.47
33
3.87
4. 74
5.47
6. 12
6.70
7.24
7.74
8.20
8.65
34
3.95
4.83
5.58
6. 24
6.83
7.38 7.89
8.37
8.82
4.02
4.93
5.69
6.36
6.97
7.53 8.04
8.53
8.99
4. 10
5.02
5.80
6.48
7.10
7.67 8.20
8.69
9.16
4. 17
5.11
5.90
6.60
7.23
7.81
8.35 8.85
9.33
4. 25
5.20
6.01
6. 72
7.36
7.95 8.50 9.01
9.50
4.32 5.29
6. 11
6.84
7.49
8.09
8.65
9.17
9.67
4.40
5.39
6.22
6.95
7.62
8.23 8.79
9.33
9.83
4.47
5.47
6.32
7.07
7.74
8.36 8.94
9.48
10.00
42 4.54 5.56
6.42
7.18
7.87
8.50 9.08
9.64
10.16
4.61
5.65 6.53
7.30
7.99 8.63
9.23
9.79
10.32
44 4.69
5.74 6.63 7.41
8.12 8.77
9.37
9.94
10.48
4.76 5.83
6.73
7.52
8.24
8.90
9.51
10.09
10.63
4.83
5.91
6.83
7.63
8.36
9.03 9.65
10.24
10.79
4.90 6.00
6.92
7.74
8.48 9.16
9.79
10.39
10.95
4.97 6.08 7.02 7.85
5.03 6.17 7.12 7.96
8.60 9.29 9.93
10.53
11, 10
8.72
9.42
10.07
10.68
11.26
5.10
6.25 7.22 8.07
8.84
9.55
10.20
10.82
11.41
544
HYDRAULIC TABLES
Table 44.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
Co
n=.125-Continued

.0055
.0060
.0065
.0070 .0075 .0080 .0085 .0090
.0095
.0100
10
11
12
13
14
17
18
19
20
21
24
25
27
28
29
30
31
33
PERDE HO*** 228** KRRAR ***** ***88 GE*** *****
4.09
4.27
4.45 4.62 4.78
4.94
5.09
5. 23
5.38
5. 52
4.36
4.55
4.74
4.92
5.09
5.26
5.42
5. 58
5.73
5.88
4. 62
4.83
5.02
5. 21
5.40
5.57
5.74
5.91
6.07
6. 23
4.87
5.09
5.30
5.50
5.69
5.88
6.06
6. 24
6.41
6.57
5.12
5.35
5.57
5.78
5.98
6. 18
6.37
6.55
6.73
6.91
15 5.36
5.60
5.83
6.05
6.26
6.47
6.67
6.86
7.05
7.23
16 5.60
5.85 6.09
6.32
6.54
6.75
6.96
7.16
7.36
7.55
5.83
6.09 6.34
6.58
6.81
7.03
7.25
7.46
7.66
7.86
6.06
6.32
6.58
6.83
7.07
7.30 7.53
7.75
7.96
8.17
6. 28
6.56
6.82
7.08
7.33
7.57
7.80
8.03
8.25
8.46
6.50
6.78
7.06
7.33
7.59
7.83
8.08 8.31
8.54
8.76
6. 71
7.01
7.30 7.57
7.84
8.09 8.34 8.58
8.82
9.05
6.92
7.23
7.53
7.81
8.08
8.35
8.61
8.85
9.10
9.33
23'
7.13
7.45
7.75
8.04
8.33
8.60
8.86 9.12
9.37
9.61
7.34
7.66
7.97
8.28
8.57 8.85
9.12 9.38
9.64
9.89
7.54
7.87 8.19
8.50
8.80 9.09
9.37
9.64
9.91
10.16
26 7.74 8.08
8.41
8.73
9.04
9.33
9.62
9.90
10. 17
10.43
7.93
8.29
8.63
8.95
9.27
9.57
9.86
10.15
10.43
10.70
8. 13
8.49 8.84
9.17
9.49
9.80
10. 11
10.40
10.68
10.96
8.32
8.69
9.05
9.39
9.72
10.04
10.35
10. 65
10.94
11.22
8.51 8.89
9.25
9.60
9.94
10. 27
10.58
10.89
11.19
11.48
8.70
9.09 9.46
9.82
10. 16
10.49
10.82
11. 13
11.43
11.73
32
8.89 9.28 9.66 10.03
10.38
10.72
11.05
11.37
11. 68
11.98
9.07 9.47 9.86 10.23
10.59
10.94
11. 28
11.60
11.92
12.23
34 9.25 9.66
10.06 10.44
10.81
11.16
11.50
11.84
12.16
12.48
35 9.43 9.85 10.26 10.64
11.02
11.38
11.73
12.07
12.40
12.72
36
9.61 10.04
10.45
10.84
11.22
11.59
11.95
12.30
12.63
12.96
37
9.79
10.22
10. 64
11.04
11. 43
11.81 12.17 12.52
12.87
13.20
38
9.97
10. 41
10.83
11. 24
11. 64
12.02 12.39 12.75
13. 10
13.44
39
10. 14
10.59
11.02 11. 44
11.84
12.23 12.60
12.97
13.33
13.67
40
10. 31
10.77
11.21 11.63
12.04
12.44
12.82
13. 19
13.55
13.90
41
10.48
10.95
11.40 11.83
12. 24
12.64
13.03
13. 41
13.78
14. 14
42
10.65 11.13 11.58
12.02
12. 44
12.85
13.24
13.63
14.00
14.36
43
10.82 11.30
11.76
12. 21
12.64
13.05 13.45
13.84
14. 22
14.59
44 10.99 11.48 11.95
12.40
12.83
13.25 13.66
14.06
14. 44
14.82
45 11.15 11.65
12.13
12.58
13.03 13.45 13.87
14.27
14.66
15.04
46 11.32 11.82
12.30
12.77
13.22
13.65
14.07
14.48
14.88 15.26
47 11.48 11.99
12. 48
12.95
13. 41
13.85
14. 27
14.69
15.09
15.48
48 11.64
12.16
12.66
13. 14
13.60
14.04
14. 48
14.90
15.30
15.70
49 11.81
12. 33
12.83
13.32
13.79 14.24
14.68
15.10
15. 52
15.92
50
16.13
11.97
15.73
12.50
15.31
13.01
14.88
13.50 13.97 14. 43
HYDRAULIC TABLES
545
་་
g⁰
Table 44.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.125-Continued

♡
.01
.02
.03
.04
05 .06
.07
.08
.09
.10
10
13
14
17
21221 1-E02 22284 38RAR AHA☹** ----8 4334 49498 8
5.52
7.80
9.56 11.04
12.34
13.52
14.60
15. 61
16.55 17.45
5.88
8.32 10.18
11.76
13. 15
14.40
15.56
16.63
17.64 18.59
6. 23
8.81 10.79
12.46
13.93
15.26 16.49
17.62 18.69 19.70
6.57
9.30 11.38
13. 15
14.70
16.10 17.39
18.59
19.72 20.78
6.91
9.77 11.96
13.81
15.44 16.91 18.27
19.53
20.72 21.84
15
7.23
10.23
12.52
14.46
16. 17
17.71
19. 13
20.45
21.69
22.86
16 7.55
10.68
13. 07
15.10
16.88
18.49
19.97
21.35
22.65
23.87
7.86
11. 12
13. 61
15.72
17.57
19.25 20.79
22.23 23.58
24.85
18 8.17
11.55
14. 14
16.33
18.26
20.00
21.60
23.09 24.50
25.82
19
8.46
11.97
14.66
16.93
18.93
20.73
22.40 23.94
25.39
26.77
20 8.76 12.39
15. 17
17.52
19.59
21.46
23.17
24.77
26. 28
27.70
21
9.05
12.80
15.67
18.10
20.23
22.16
23.94
25.59
27.15
28. 61
9.33
13.20
16. 17
18.67
20.87
22.86
24. 69
26.40
28.00
29.52
23
9.61
13.60
16. 65
19.23
21.50
23.55
25.44
27.19
28.84
30.40
9.89
13.99
17.13
19.78
22.12
24. 23 | 26. 17
27.98
29.67
31.28
25 10.16
14.37
17.60 20.33 22.73
26
10.43
14.76
18.07
20.87
24.90
23.33 25.56
26.89
28.75
30.49
32. 14
27.60 29.51
31.30
32.99
27
10.70
15. 13
18.53
21.40
23.92 | 26. 21
28.31 30.26
32. 10
33.83
28
10.96
15.50
18.99 21.92
24.51 26.85
29.00 31.00
32,89
34.66
29
11.22
15.87
19.44 | 22.44
25.09
27.49
29.69 31.74
33.66
35.48
30
11.48
16. 23
19.88
22.96
25.67
28.11
30.37
32.46
34.43
36.30
31
11.73
16. 59
20.32 23.46
26.23
28.74
31.04
33. 18
35. 19
37.10
32
11.98
16.95
20.75 23.96
26.79
29. 35
31.70
33.89
35.95
37.89
33
12. 23
17.30
21.18 24.46 27.35
29.96
32.36
34.59 36.69
38.68
34
12.48
17.64
21.61
24.95 27.90 30.56
33.01 35.29
37.43
39.45
35 12.72
17.99
22.03
25.44 28.44 31.16
33.65
35.98
38.16
40.22
36
12.96
18. 33
22. 45
25.92 28.98
31.75
34. 29
36.66 38.88
40.99
37
13.20
18.67
22.86 26.40
29.52
32. 33
34.92
37.34 39.60
41.74
38
13. 44
19.00
23. 27 | 26.87
30.05
32.91
35.55
38.01 40.31
42.49
39
13.67
19.33
23.68 | 27.34
30.57
33.49
36. 17
38.67 41.01
43. 23
40
13.90
19.66
24.08 27.81
31.09
34.06
36.79
39.33
41.71
43.97
41
14. 14
19.99
24. 48
28.27 31.61
34.62
37.40
39.98
42. 41
44.70
42
14.36
20.31 24.88
28.73 32.12
35. 18
38.00 40.63
43.09
45.42
14.59
14.82
20.63 25.27
29.18 | 32.63 | 35.74
38.60
41.27
43.77
46. 14
20.95 25.66
29.63 | 33.13 | 36. 29
39.20
41.91
44.45
46.85
45
15.04 21.27
26.05
30.08 33.63 36.84
39.79
42.54
45. 12
47.56
46
15.26 21.58 26. 43
30.52
34.13 | 37.38
40.38
43. 17
45.79
48.26
47
15.48 21.90
26.82
30. 96
34.62 37.92
40.96
43.79
46. 45
48.96
15.70 22.21
27.20
31.40
35.11 38.46
41.54
44. 41
47.10
49.65
15. 92
22.51
27.57 31.84
35.60 38.99
42.12
45.02
47.76
50. 34
50 16.13
22.82 27.95 32.27
36.08 39.52
42.69
45.64
48.40
51.02
546
HYDRAULIC TABLES
Table 45.—Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.150

8
.00005
|
.00010.00015 .00020.00025.00030.00035.00040.00045.00050
0030
0.2
0.02
0.03
0.4
0.04 0.05
0.05
.04
0.06
.05 .07
0.06 0.07
.08
0.07
0.08
0.6
.09
.05
.09
.07
.10
11
.09
•
.11
0.8
.10
.06
.09
. 11
.12
.12
.13
.10
.14
.15
.12
.13
.16
.15
.16
.17
.18
.19
1,0
.07
.10
.12
.14
1.2
.16
.08
.17
19
.11
.14
.20
.21
1.4
.16
.22
.18
.09
.19
.21
.12
.22
.15
24
.18
.25
1.6
.20
.10
.21
.23
.14
.17
. 25
.26
.19
1.8
.21
.28
.10
.23
.15
.18
.25
.27
.21
.23
.25
. 29
.30
.27
. 29
.31
.33
2.0
.11
.16 .19
.22
2.2
.25
.12
.27
.17
.29
.31
.21
.24
.33
2.4
.26
.35
13
.29
.31
·
.18
.22
.25
.34 .36
2.6
28
.37
.13
.31
.19
.33
.36
.23
.26
.38
2.8
.30
.40
.14
.32
.20
.35
.24
.37
.40
.28
.31
.42
.34
.37
.39
. 42
.44
3.0
.15
. 21
3.2
.25
.29
.33
.15
.22
.36
.39
.26
.41
3.4
.30
.44
.34
.16
. 22
.37
.46
.40
.27
.32
.43
.46
3.6
.35
.48
.16
.39
.23
.42 .45
.28
.33
.48
3.8
.37
.50
.17
.40
.24
.44
.30
.47
.34
.38
.49
.52
.42
.45
.48
.51
.54
4.0
.18
.25
.31
35
4. 2
•
.39
43
.18
•
.26
.47
.32
.50
4. 4
.36 .41
.19
.27
.33
· 45
.53
.56
.48
.52
.38
.55
4.6
.42
.19
.27
4.8
.34
.46
.58
.50
.39
.53 .56
.43
.20
.28
.35
.47
.59
51
.40
•
.55
.58
.45
.49
.61
.53
.56
.60
.63
5.0
.20
.29
.35
.41
5.2
.46
21
·
.30
.36
.42
.50 .54 .58
.61
5. 4
.47
65
.52
22
•
.30
.56
.37
.59
.63
•
43
5.6
.22
•
.48
.66
.53
57
.31
.38
.44
. 61
.65
5.8
.49
.68
23
.54
•
.32
.58
.62
.39
.45
· 51
.66
.70
.55
.60
.64
.68
.72
6.0
6.2
6.4
6.6
6.8
0243 αD
23
•
33
•
.40
.24
.46
.52
57
•
.33
.41
. 61
.65
.47
.53
.69
.73
.24
.58
.34
.63
.67
.42
.48
.71
.54
.75
.59
.25
.35 .43
.64 .68
.49
.72
.55
.76
.25
.60
.36
44
.50
.65 .70 .74
.56
.78
.62
.67 .71 .75
.80
7.0
.26
.36
7. 5
.44
.51
. 57
.27
.63
.38
8.0
.46
68
•
.73
.54
.60
.77
.81
28
.66
40
.49
8.5
.56
.71 .76
.81
.63
.85
.29
.69
.41
.51
9.0 .30
.58 .65
.74 .79 .84
.89
.71
.43 .52 .61
.77
.68
.83 .88
.92
.74 .80
.86
.91
.96
9.5
99
.31
•
.44
94
.54
.89
•
.83
63 .70
.77
HYDRAULIC TABLES
547
Table 45.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.150-Continued

.00055 .00060.00065 | .00070.00075 | .00080 | .00085 | .00090 | .00095 | .00100
0090 095
T
0.2
0.08
0.08
0.09 0.09 0.09
0.4
0.10
0.10
.13
.13
0.10
.14
0.10
0.11
.14
.15
0.6
.15
.16
.17
.16
.17
.17
.18
.17
.19
.19
0.8
.20
.21
.20
.21
.21
.22
.22
.22
.23
. 23
.24
25
.26
.26
.27
1.0
1.2
1.4
1.6
1.8
0244 ∞
.23
.24
25
.26
.27
28
.29
.26
.30
.27
.29
.31
.31
.30
.31
.29
.30
.32
.33
·
34
.34
.32
.35
.33
.34
.35
.36
.32
.33 .35
.37
.38
.34
.36
.39
.37
.38
40
.36
·
.41
.37
.39
.40
.42
.43
.41
.43
.44
.45
.46
2.0
.37
.39
.40
.42
2.2
.43
.44
.39
.46
.47
.41
.43
2.4
.44
.48
.46
.50
.47
.49
42
.50
.52
.43
.45
.53
.47
.49
.50
2.6
.52
44
53
•
.46
.55
.48
.56
.50
.51
.53
2.8
.46
.55
.56
.48
.50
.58
.52
.54
.59
.56
.57
.59
.61
.62
3.0
.48
50
•
.53
55
•
56
3.2
•
.58
.60
.50
.53
.62
.55
.64
.57
.65
.59
.61
3. 4
.63
.53
.65
.55
.66
.57
.59
3.6
.55
· 61
.68
.63
.65
.67
.57
.69
.59
.62
.71
.64
3.8
.66
.57
.68 .70
.59
.72
.62
.74
64
.66 .68
.70
.72
.74
.76
4.0
.59
.61
.64
.66
4.2
.60
.68
.71
.73
.75
.63
.77
•
66
.68
.79
.71
.73
4. 4
.62
.75
.65
.77
•
.68
.70
.79
.82
4. 6
.73
.75
.64
.67
.78
.80
.82
.70
.72
.75
.84
4.8
.78
.80
.66
.82
.69
.84
.72
.87
.75
.77
.80 .82
.85
.87
.89
5.0
.68
.71
.74
.77
.79
5.2
.82 .84
.70
.73
.87
.89
.76
92
79
•
.81
.84
5.4
.87
.72
.89
.75
92
.78
.94
.81
84
.86
5. 6
.89
91
.73
.77
.80
.83
.86 .88
.94
.96
5.8
.91
94
.75
.78 .82
•
.96
.85
.99
.88
90
.93
.96
.99
1.01
6. 0
6.2
6.4
6.6
6.8
0248 00
.77
.80
.83
.87
.90
.93
.95
.78
.82 .85
.98
1.01
.88
1.03
.92
.95
.97
.80
1.00
.84
1.03
.87
.90
1.06
.94
.97
.82
1.00
1.02
.85 .89
1.05
.92
1.08
.95
.99
1.02
.83
.87
1.05 1.07
.91
.94
.97
1.10
1.01
1.04
1.07
1.10
1.12
7.0
.85
.89
.92
.96
.99 1.03
7.5 .89
1.06
1.09
.93
1. 12
.97
1.00
1.15
1.04
1.07
8.0
1. 11
.93
1. 14
.97
1.17
1.01
1.05
1.09
1.20
1.12
8.5
1.16
.97 1.01 1.05
1.19
1. 22
1.09
1.25
1. 13
1. 17
9.0
1.20
1.01
1.24
1.05 1.09
1.27
1. 13
1.30
1.17
1.21
1.25 1.29
1.32
1.36
9.5
1.41
1.04 1.09
1.37
1.13
1.26 1.30 1.33
1.18
1.22
548
HYDRAULIC TABLES
Table 45.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.150-Continued

.0010
.0015
.0020 .0025 .0030 .0035 .0040
.0045
.0050
0.2
0.11
0.13
0.15
0.17
019 0.20
0.21
0.23
0.24
0.4
.17
.21
.24
.27
.29
.32
.34
.36
.38
0.6
.22
.27
.32
.35
.39
.42
.45
.47
.50
0.8
.27
.33
.38
.43
· 47
51
54
.57
.60
1.0
.31
.38
.44
.50
.54
.59
.63
.66
.70
1.2
.35
.43
.50
.56
. 61
.66
.71
.75
.79
1.4
.39
.48
.55
62
·
.68
.73
.78
.83
.88
1.6
.43
.52
.61
.68
.74
.80
.86
.91
1.8
.46
.57
.96
.66
.73
.80
.87
.93
.98
1.04
2.0
.50
.81
.70
.79
.86
.93
.99
1.05
1.11
2.2
.53
65
75
•
.84
.92
.99
1.06
1. 12
1.18
2.4
.56
.69
.79
.89
.97
1.05
1.12
1.19
1.26
2. 6
.59
73
•
.84
.94
1.03
1.11
1.18
1.26
1.32
2.8
.62
.76
.88
.98
1.08
1.16
1.24
1.32
1.39
3.0
.65
.80
.92
1.03
1. 13
1.22
1.30
1.38
1.46
3.2
.68
.83
.96
1.08
1. 18
1.27
1.36
1.44
1.52
3.4
.71
.87
1.00
1. 12
1.23
1.33
1.42
1.50
1.58
3.6
.74
.90
1.04
1.16
1.27
1.38
1.47
1.56
1.65
3.8
.76
.93
1.08
1.21
1.32
1.43
1.53
1.62
1.71
4.0
.79
.97
1.12
1.25
1.37
1.48
1.58
1.67
1.77
4.2
.82 1.00
1.15
1.29
1.41
1.53
1.63
1.73
1.82
4.4
.84
1.03
1. 19
1.33
1.46
1.57
1.68
1.78
1.88
4.8
.87
1.06
1.23
1.37
1.50 1.62 1.73
1.84
1.94
4.8
.89 1.09
1.26
1. 41
1.54
1.67
1.78
1.89
1.99
5.0
.92
1.12
1.30
1.45
1.59
1.71
1.83
1.94
2.05
5.2
.94
1.15
1.33
1.49
1.63
1.76 1.88
1.99
- 2.10
4.4
.96
1.18
1.36
1.52
1.67
1.80
1.93
2.05
2.16
5. 8
.99
1.21
1.40
1.56
1.71
1.85
1.98
2.10
2. 21
5.8
1.01
1.24 1.43
1.60
1.75
1.89
2.02
2.15
2.26
6.0
1.03
1.27
1.46
1.64
1.79
1.94
2.07
2.19
2.31
8.2
1.06 1.29
1.50
1.67
1.83
1.98
2. 11
2. 24
2.36
6.4
1.08
1.32
1.53
1.71
1.87
2.02
2.16
2.29
2.41
6. 6
1.10
1.35
1.56
1.74
1.91
2.06
2.20
2. 34
2.46
6.
8
1.12
1.38
1.59
1.78 1.95
2.10
2.25
2.39
2. 51
7.0
1.15
1.40
1.62
1.81
1.99
2.14
2. 29
2.43
2.56
7.5
1.20 1.47
1.70
1.90
2.08
2.25
2.40
2.55
8.0 1.25
2. 68
1.53
1.77
1.98
2. 17
2.34
2. 51
2.66
2.80
8.5
1.30
1.60
1.85
2.06
2. 26
2. 44
2.61
2.77
2.92
9.0
1.36
1.66
1.92
2. 14
2.35
2.53
2.71
2.88
3.03
9.5
3.14
1.41
2.98
1.72
2.81
1.99
2.63
2. 22
2.43
HYDRAULIC TABLES
549
Table 45.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n=.150
N
Continued

8
.0055
.0060
.0065 .0070 .0075
.0080
.0095 .0090
.0095 .0100
0.2
0.25
0.26
0.27 0.28
0.29
0.30
0.31
0.32 0.33
0.34
0.4
.40
.42
.43
.45
.47 .48
.50
.51
.52
.54
·
0.6
.52
.55
.57
.59
.61
.63
.65
.67
.69
.70
0.8
.63
.66
.69
.71
.74
.76
.79
.81
.83
.85
1.0
1.2
1.4
1.6
1.8
O24800
.73
.77
.80
.83
.86
.89
.91
.94
.97
.99
.83
.87
.90
.94
.97
1.00
1.03
1.06
1.09
1.12
.92
.96
1.00
1.04
1.07
1.11
1.14
1.18
1.21
1. 24
1.01
1.05
1.09
1. 13
1. 17
1.21
1.25
1.29
1.32
1.36
1.09
1.14
1. 18
1.23
1.27
1.31
1.35 1.39
1.43
1.47
2.0 1.17
1.22
1.27
1.32
1.36
1.41
1.45 1.49
1.53
1.57
2.2
1.24
1.30
1.35
1.40
1.45
1.50 1.54 1.59
1.63
1.68
2.4
1.32
1.38
1.43
1.49
1.54
1.59
1.64
1.68
1.73
1.78
2.6
1.39
1.45
1.51
1.57
1.62
1.68
1.73
1.78
1.83
1.87
2.8
1.46
1.52 1.59
1.65
1.70
1.76 1.81
1.87
1.92
1.97
3.0
1.53
1.60
1.66
1.72
1.78 1.84
1.90
1.95
2.01
2.06
3.2
1.60
1.67 1.73
1.80
1.86
1.92
1.98
2.04
2.10
2. 15
3.4
1.66
1.74 1.81
1.87
1.94
2.00
2.07
2. 13
2. 18
2. 24
3.6 1.73
1.80
1.88 1.95
2.02
2.08
2.15
2. 21
2.27
2. 33
3.8
1.79
1.87
1.94
2.02
2.09 2.16
2.22
2.29
2.35
2. 41
4.0
1.85
1.93
2.01 2.09
2.16
2.23
2.30
2.37
2.43
2.50
4.2
1.91
2.00
2.08
2.16
2.23
2.31
2.38 2.45
2.51
2.58
4.4
1.97
2.06
2.14
2. 23
2.30
2.38
2.45 2.52
2.59
2.66
4.6
2.03
2.12
2. 21
2. 29
2.37 2.45
2.53
2.60
2.67
2.74
4.8
2.09
2. 18
2. 27
2.36
2.44 2.52
2.60 2.67
2.75
2.82
5.0
2. 15
2. 24
2.34
2.42
2.51 2.59
2.67
2.75
2.82
2.90
5.2
2.21
2.30
2.40
2.49
2.58 2.66
2.74 2.82
2.90
2.97
5.4
2. 26
2.36
2.46
2.55
2.64
2.73 2.81 2.89
2.97
3.05
5.6
2.32
2.42
2.52
2.61
2.71
2.79 2.88
2.96
3.04
3. 12
5.8
2.37
2.48
2.58
2.68
2.77
2.86 2.95
3.03
3.12
3.20
6.0
2.43
2.53 2.64 2.74 2.83
2.93
3.02
3.10
3. 19
3.27
6.2
2.48
2.59 2.70 2.80
2.90
2.99
3.08
3. 17
3.26
3.34
6.4
2. 53
2.65
2.75 2.86
2.96
3.05
3. 15
3. 24
3.33
3.41
6.6
2.59
2.70
2.81 2.92
3.02
3. 12
3. 21
3.31
3.40
3.49
6.8
2. 64
2.75
2.87
2.97
3.08
3.18
3.28
3.37
3.47
3.56
7.0
2.69
2.81
2.92
3.03
3.14
3. 24
3.34
3.44 3.53
3.63
7.5 2.82
2.94
3.06
3. 18
3.29
3.40
3.50
3.60 3.70
3.80
8.0 2.94
3.07
3. 19
3.32
3.43
3.54
3.65
3.76
3.86
3.96
8.5
3.06 3.20
3.33
3.45 3.57 3.69
3.80
3. 91
4.02
4. 13
9.0
3.18 3.32
3.46
3.59 3.71
3.83
3.95
4.07
4. 18
4. 29
9.5
4. 44
3.30
4.33
3.44
4. 22
3.58
4.10
3.72 3.85
3.97
550
HYDRAULIC TABLES
Table 45.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
N
n=.150—Continued

S
.01
.02
.03 .04
.05
.06
.07 .08
.09
.10
0.2
0.34
0.48
0.59 0,68
0.76
0.83
0.90
0.96
1.02
1.07
0.4
54
.76
.93
1.08
1.20
1.32
1.42 1.52
1.61
•
1.70
0.6
.70
1.00
1. 22
1.41
1. 58
1. 73
1.86
1.99
2.11
2.23
0.8
.85
1.21
1.48
1. 71
1.91
2.09
2.26
2.41
2.56
2.70
1.0
1.2
1.4
1. 6
1.8
024∞ ∞
.99
1.40
1.72
1.98
2. 22
2.43
2.62
2.80
2.97
3. 13
1.12
1.58
1.94
2. 24
2.50
2.74
2.96
3. 16
3.36
3.54
1. 24
1.75
2. 15
2.48
2.77
3.04
3. 28
3. 51
3.72
3.92
1.36
1.92
2. 35
2,71
3.03
3.32
3.59
3.83
4.07
4. 29
1.47
2.07
2.54
2.93
3.28
3. 59
3.88
4. 15
4.40
4.64
2.0
1. 57
2.22
2.72
3. 15
3.52
3.85
4.16
4.45
4.72
4.97
2.2
1.68
2.37 2.90
3.35
3.75
4. 10
4.43
4.74 5.03
5.30
2.4
1.78
2.51
3.08
3.55
3.97
4. 35
4.70
5.02
5.33
5.62
2.6 1.87
2.65
3.24
3.75
4. 19
4.59
4.96
5.30
5.62
5.92
2.8
1.97
2.78
3.41
3.94
4.40
4.82 5.21
5.57
5.90
6. 22
3.0
2.06
2.91
3.57
4. 12
4.61
5.05
5.45
5.83
6.18
6. 52
3.2
2.15
3.04
3.73
4.30
4.81
5.27 5.69
6.08
6.45
6.80
3. 4
2.24
3. 17
3.88
4.48 5.01 5.49
5.93 6.34
6.72
7.08
3.6
2.33
3.29
4.03 4.65 5.20
5.70
6.16
6.58
6.98
7.36
3.8
2.41
3.41
4.18
4.82 5.39
5.91
6.38
6.82
7.24
7.63
4.0
2.50
3.53
4.32
4.99
5.58
6.11
6.60 7.06
7.49
7.89
4. 2
2.58
3.65
4.47
5. 16
5.77
6.32
6.82 7.29
7.74
8.16
4.4
2.66
3.76
4.61
5.32
5.95
6.52
7.04 7.52 7.98
8.41
4. 6
2. 74
3.88
4.75
5.48
6. 13
6.71
7.25 7.75 8.22
8.66
4.8
2.82
3.99
4.88
5. 64
6.30
6.91
7.46
7.97
8.46
8.91
5.0
2.90
4.10
5.02
5.79
6.48
7.10
7.66
8.19
8.69
9.16
5.2
2.97
4.21
5. 15
5.95
6.65
7.28
7.87
8.41 8.92
9.40
5.4
3.05
4.31
5.28
6. 10
6.82
7.47 8.07 8.62
9.15
9.64
5.6
3. 12
4.42
5.41
6.25
6.99
7.65
8.27 8.84
9.37
9.88
5.8
3.20
4. 52
5.54 6.40
7.15
7.83 8.46
9.05
9.59
10.11
6.0
3.27
4.63
5.67 6.54
7.31
8.01
8.65
9.25
9.81
10. 34
6.2
3.34
4.73
5.79 6.69
7.48
8. 19
8.85
9.46
10.03
10.57
6.4
3. 41
4.83
5.91
6.83 7.64
8.36
9.04
9.66
10. 24
10.80
6.6
3.49
4.93
6.04
6.97 7.79
8.54 9.22
9.86
10.46
11.02
6.8
3.56
5.03
6. 16
7.11
7.95
8.71
9.41
10.06
10.67
11. 24
7.0
3.63
5.13
6.28
7.25
8. 11
8.88
9.59
10.25
10.88
11.46
7.5
3.80
5.37 6.57 7.59
8.49
9.30❘ 10.04
10.74
11.39
12.00
8.0
3.96
5.60
6.86 7.93
8.86
9.71 10.48
11. 21
11.89
12.53
8.5
4. 13
9.0
4.29
5.84 7.15
6.06 7.42
8.25
9.23
8.57 9.58
10.11 10.92
10.50
11.67
12.38
13.05
11.34
12. 12
12.86
13.55
9.5
14.05
4.44
13.33
6.28
12.57
7.70
11.76
8.89
9.94 10.88
HYDRAULIC TABLES
551
Table 45.-Velocity of water, v, in feet per second, based on
1.486,2/31/2
Manning's formula v=
n
n=.150—Continued


8
.00005 .00010
.00015.00020.00025.00030.00035.00040.00045.00050
0.65
0.73 0.80 0.86 0.92
10
0.33
0.46
0.56
0.98
1.03
11
.35
.49
60
69
•
•
.77 .85
.92
.98
1.04
1.10
12
.37
.52
.64
.73
.82
.90
.97
1.04
1.10
1.16
13
.39
.55
.67
.77
.87
.95
1.02
. 1.10
1. 16
1.22
14
.41
.58
.70
.81
.91
1.00
1.08
1. 15
1.22
1.29
15
43
60
•
.74
.85
.95
1.04
1.13
1. 21
1. 28
1.35
16
44
.63
.77
.89
.99
1.09
1. 18
•
1.26
1.33
1.41
17
.46
.65 .80
.93
1.04
1. 13
1.23
1.31
1.39
1.46
18
.48
.68
.83
.96
1.08
1. 18
1.27
1.36
1.44
1.52
19
.50
.71
.86
1.00
1. 12
1.22
1.32
1.41
1.50
1.58
35
36
37
38
39
40
41
42
44
46
47
48
50
22222 22222 AM:** *8-88 GER34 44539 6
20
.52
.73
.89
1.03
1. 15
1.26
1.37
1.46
1.55
1.63
21
.53
.75
.92
1.07
1.19
1.31 1.41
1.51 1.60
1.69
.55
.78
.95
1.10
1.23
1.35 1.46 1.56
1.65
1.74
23
.57
.80
.98
1.13
1.27
1.39
1.50
1.60
1.70
1.79
24
.58
.82
1.01
1. 17
1.30
1. 43
1.54
1.65
1.75
1.84
25
.60
.85
1.04
1.20
1.34
1.47
1.58
1.69
1.80
1.89
26
.61
.87
1.06
1.23
1.37
1.51
1.63
1.74 1.84
1.94
27
.63
.89
1.09
1.26
1.41 1.54
1.67
1.78
1.89
1.99
28
.65
.91
1.12 1.29 1.44
1.58
1.71
1.83
1.94
2.04
29
•
66
.94
1.15
1.32 1.48
1.62
1.75
1.87
1.98
2.09
30
68
.96
1.17
1.35
1.51
1.66
1.79
1.91
2.03
2. 14
31
.69
.98
1.20 1.38
1.55
1.69 1.83
1.96
2.07
2.19
32
.71
1.00
1.22 1.41
1.58
1.73
1.87
2.00
2. 12
2.23
33
.72
1.02 1.25
1.44
1.61 1.77
1.91
2.04
2. 16
2. 28
34
.74
1.04 1.27
1.47
1.64
1.80
1.95
2.08
2. 21
2. 32
.75
1.06 1.30 1.50
1.68
1.84
1.98
2.12
2. 25
2.37
.76
1.08 1.32
1.53
1.71
1.87
2.02
2. 16
2. 29
2.42
.78
1.10
1.35 1.56
1.74
1.91
2.06
2.20
2.33
2.46
.79
1. 12
1.37 1.58
1.77
1.94
2.09
2. 24
2.38
2.50
.81
1. 14
1.40
1.61 1.80
1.97
2. 13
2. 28
2.42
2.55
.82
1. 16
1.42
1.64 1.83
2.01
2.17
2. 32
2.46
2.59
.83
1.18
1.44
1.67
1.86
2.04
2.20
2.36
2.50
2.63
.85
1.20
1. 47
1.69 1.89
2.07
2. 24
2.39
2.54
2.68
.86
1. 22
1.49
1.72
1.92
2. 11
2.27
2.43
2.58
2.72
.87
1. 23
1.51 1.75
1.95
2.14
2. 31
2. 47
2.62
2.76
.89
1.25
1.54
1.77 1.98
2.17
2.34
2.51
2.66
2.80
.90
1.27
1.56
1.80
2.01
2.20
2.38
2. 54
2.70
2.84
.91
•
1.29 1.58
1.82
2. 04
2.23
2. 41
2.58
2.74
2.88
.93
1.31 1.60 1.85
2.07 2.27
2.45
2.62
2.78
2.93
.94
1.33 1.62
1.88
2.10
2.30
2.48
2.65 2.81
2.97
95
1. 34 1.65
1.90
2.13
2.33 2.52 2.69 2.85
3.01
552
HYDRAULIC TABLES
Table 45.—Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
n=.150-Continued

$
.00055 .00060.00065 | .00070.00075.00080 | .00085 | .00090 | .00095 | .00100
T
10
1.08
11
1.15
1.20
1.25
1.30
12
1.22
1.27
1.32
1.37
1.13 1.17 1.22 1.26 1.30 1.34 1.38 1.42
1.34 1.39 1.43
1.42 1.47 1.51
1.45
1.47 1.51
1.55
1.56
1.60
1.64
13
1.28
1.34
1.40
1.45 1.50
1.55 1.60 1.64
1.69
1.73
14
1.35
1.41
1.47
1.52
1.58
1.63
1.68
1.73
1.77
1.82
15
1.41
1.48
1.54
1.59
1.65
1.70
1.76
1.81
1.86
1.91
16
1.48
1.54
1.60
1.66
1.72
1.78
1.83 1.89
1.94
1.99
17
1.54 1.60
1.67
1.73
1.79
1.85
1.91 1.96
2.02
2.07
18
1.60
1.67
1.73
1.80
1.86
1.92
1.98 2.04
2.10
2.15
19
1.65
1.73
1.80
1.87
1.93
2.00
2.06
2.12
2.17
2.23
20
1.71
1.79
1.86
1.93
2.00
2.06
2. 13
2.19 2.25
2.31
21
1.77
1.85
1.92
2.00
2.07
2. 13
2.20 2.26 2.32
2.38
22
1.82
1.91
1.98
2.06
2.13
2.20
2.27 2.33 2.40
2.46
23
1.88
1.96
2.04
2.12
2. 19
2.27
2.34
2.40
2.47
2.53
24
1.93
2.02
2. 10
2.18
2.26
2.33
2.40
2.47
2. 54
2.61
25
1.99
2.07
2.16
2. 24
2.32
2.40
2.47
2. 54
2. 61
2.68
26
2.04
2.13
2. 22
2.30
2.38
2.46
2.53
2.61
2.68
2.75
27
2.09
2.18
2. 27
2.36
2.44
2.52
2.60
2.67
2.75
2.82
28
2.14
2.24
2.33
2.42
2.50
2.58
2.66
2.74
2.82
2.89
29
2.19
2.29
2.38 2.47
2.56
2.64
2.73
2.81 2.88
2.96
30
2. 24
2.34
2.44 2.53
2.62 2.71
2.79
2.87
2.95
3.02
31
2. 29
2.39
2.49 2.59
2.68
2.77 2.85
2.93
3.01
3.09
32
2.34
2.45 2.55
2.64
2.73
2.82 2.91
3.00
3.08
3.16
33
2.39
2.50 2.60
2.70
2.79
2.88
2.97
3.06
3.14
3.22
34
2.44
2.55 2.65
2.75
2.85
2.94
3.03
3.12
3.20
3.29
35
2.49 2.60
2.70
2.80
2.90
3.00
3.09
3.18
3.27
3.35
36
2.53 2.65 2.75
2.86
2.96
3.05
3.15
3. 24
3.33
3.42
37 2.58 2.69
2.80 2.91
3.01
3. 11
3. 21
3.30
3.39
3.48
38
2.63 2.74
2.85
2.96
3.07
3. 17
3.26
3.36
3.45
3.54
39
2.67 2.79
2.90
3. 01
3.12
3.22
3.32
3.42
3. 51
3.60
40
2.72
2.84
2.95
3.07
3. 17
3.28
3.38 3.48
3.57
3.66
41 2.76
2.89
3.00
3.12
3. 23
3.33
3.43
3.53
3.63
3.72
42
2.81
2.93 3.05
3.17
3.28
3.39
3.49
3.59
3.69
3.79
43 2.85
2.98
3.10
3. 22
3.33
3.44
3. 54
3.65
3.75
3.85
44
2.90
3.02
3.15
3.27
3.38
3.49
3.60
3.70 3.81
3.90
45
2.94
3. 07
3.20
3.32
3.43 3.54
3.65
3.76
3.86
3.96
46 2.98
3.12
3. 24
3.36
3.48 3.60
3.71 3.82
3.92
4.02
47
3.03
3.16
3.29
3. 41
48 3.07
3.21
3.34
3.46
49
3.11
3.25
3.38 3.51
3.53 3.65
3.58 3.70
3.63 3.75
3.76
3.87 3.98
4.08
3.81
3.93 4.03
4. 14
3.87 3.98
4.09
4. 19
50
4. 25
3. 15
4. 14
3.29
4.03
3.43 3.56
3.92
3.68 3.80
HYDRAULIC TABLES
553
Table 45.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.150-Continued

$
.0010
.0015
.0020
.0025
.0030
.0035
.0040
.0045 .0050
T
10
1.45
1.78
2.06
2.30
2.52
2.72
2.91
3.08
3.25
11
1.55
1.90
2.19
2. 45
2.68
2.90
3. 10
3.29
3.46
12
1.64
2.01
2.32
2.60
2.84
3.07
3.28
3.48
3.67
13
1.73
2.12
2.45
2. 74
3.00
3.24
3.46
3.67
3.87
14
1.82
2.23
2.57
2.88
3. 15
3.40
3. 64
3.86
4.07
15
1.91
2.33
2.69
3.01
3.30
3.56
3.81
4.04
4.26
16
1.99
2. 44
2.81
3. 15
3.45
3.72
3.98
4. 22
4. 45
17
2.07
2.54
2.93
3. 27
3.59
3.87
4. 14
4.39
4.63
18
2. 15
2.64
3.04
3.40
3.73
4.03
4.30
4. 56
4.81
19
2. 23
2.73
3.15
3.53
3.86
4. 17
4.46
4.73
4.99
20
2.31
2.83
3.26
3.65
4.00
4.32
4.62
4.90
5. 16
21
2. 38
2.92
3.37
3.77
4.13
4.46
4.77
5.06
5.33
22
2.46
3.01
3.48
3.89
4. 26
4.60
4.92
5. 22
5.50
23
2.53
3.10
3.58
4.01
4.39
4.74
5.07
5.37
5. 67
24
2. 61
3. 19
3.69
4. 12
4.51
4.88
5. 21
5.53
5.83
29
30
31
32
33
37
*RKAR A-887 388 3:
25
2.68
3. 28
3.79
4. 24
4. 64
5.01
5.36
5.68
5.99
26
2.75
3.37
3.89
4. 35
4.76
5. 14
5.50
5.83
6. 15
27
2.82
3.45
3.99
4.46
4.88
5.27
5.64
5.98
6.30
28
2.89
3.54
4.09
4.57
5.00
5.40
5.78
6. 13
6.46
2.96
3.62
4. 18
4.68
5. 12
5. 53
5.91
6. 27
6.61
3.02
3.70
4.28
4.78
5. 24
5.66
6.05
6. 42
6.76
3.09
3.79
4.37
4.89
5.35
5.78
6. 18
6.56
6.91
3. 16
3.87
4.47
4.99
5. 47
5.91
6.32
6.70
7.06
3. 22
3.95
4.56
5.10
5.58
6.03
6. 45
6.84
7.21
34
3.29
4.03
4. 65
5.20
5.69
6. 15
6.58
6.97
7.35
35
3.35
4.11
4.74
5.30
5.81
6.27
6.70
7.11
7.50
36 3.42
4.18
4.83
5.40
5.92
6.39
6.83
7.25
7.64
3.48
4. 26
4.92
5.50
6.02
6.51
6.96
7.38
7.78
3.54
4.34
5.01
5.60
6. 13
6.62
7.08 7.51
7.92
39
3.60
4. 41
5.10
5.70
6. 24
6.74
7.21
7.64
8.06
40
3.66
4.49
5. 18
5.79
6.35
6.85
7.33
7.77
8. 19
41
3.72
4. 56
5. 27
5.89
6.45
6.97
7.45
7.90
8.33
42
3.79
4.64
5. 35
5.98
6.56
7.08
7.57
8.03
8.46
43
3.85
4.71
5. 44
6.08
6.66
7.19
7.69
8. 16
8.60
44
3.90
4.78
5.52
6. 17
6.76
7.30
7.81
8.28
8.73
45
3.96
4. 85
5.61
6. 27
6.86
7.41
7.93
8.41
8.86
46 4.02
4. 93
5.69
6.36
6.97
7.52
8.04
8.53
8.99
47 4.08
5.00
5.77
6.45
7.07
7.63
8.16
8.65
9. 12
48
4.14
5.07
5.85
6. 54
7.17
7.74
8.28
8.78
9.25
49
4.19
5. 14
5.93
6.63
7.27
7.85
8.39
8.90
9.38
50
4. 25
5. 21
6.01
6.72
7.36
7.95
8.50
9.02
9.51
563189°- -44-
-36
554
HYDRAULIC TABLES
Table 45.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.150-Continued

$
.0055
.0060
.0065
.0070
.0075
.0080
.0085 .0090
.0095
.0100
T
10
3.41
3.56
3.71
3.85
3.98
4. 11
4. 24
4.36 4.48
4.60
11
3.63
3.80
3.95
4.10
4. 24
4.38
4. 52
4.65
4.78
4.90
12
3.85
4.02
4. 19
4. 34
4.50
4.64
4.79
4.93
5.06
5. 19
13
4.06
4.24
4.42
4.58
4.74
4.90
5.05
5.20
5.34
5.48
14
4. 27
4.46
4.64
4.81
4.98
5.15 5.31
5.46
5.61
5.75
15
16
17
18
19
20
22
23
24
25
29
31
33
29202 2**** **NAR AMH** *8538 ==*** *****
4. 47
4.67
4.86
5.04
5.22
5.39
5.56
5.72
5.87
6.03
4.67
4.87
5.07
5.26
5.45
5.63
5.80
5.97
6. 13
6. 29
4.86
5.07
5. 28
5.48
5.67
5.86
6.04
6. 21
6.38
6.55
5.05
5.27
5.49
5.69
5.89
6.09
6.27
6.46
6.63
6.80
5.23
5.46
5.69
5.90
6.11
6.31
6.50 6.69
6.88
7.05
5.41
5.65
5.88
6. 11
6.32
6.53
6.73
6.92
7.11
7.30
5.59
5.84
6.08
6.31
6.53
6.74
6.95
7.15
7.35
7.54
5.77
6.02
6.27
6. 51
6.74
6.96
7.17
7.38
7.58
7.78
5.94
6. 21
6.46
6.70
6.94
7.17 7.39
7.60
7.81
8.01
6. 11
6.38
6.65
6.90
7.14
7.37
7.60 7.82
8.03
8.24
6. 28
6.56
6.83
7.09
7.34
7.58
7.81
8.04
8.26
8.47
26
6.45
6.73
7.01
7.27
7.53
7.78
8.02 8.25
8.47
8.69
6.61
6.91
7.19 7.46
7.72
7.97
8.22 8.46
8.69
8.92
28
6.77
6.93
7.24
7.08 7.36 7.64 7.91
8.10
8.17
8.42
8.67
8.90
9.13
7.54 7.82
8.36 8.62 8.87
9.11
9.35
7.09
7.41
7.71
8.00
7.25
7.57
7.88
8.18
8.28 8.56
8.47 8.74 9.01 9.27
8.82
9.07
9.32
9.56
9.53
9.78
7.41
7.73 8.05
8.35
8.65 8.93 9.21 9.47
9.73
9.99
7.56
7.89 8.22
8.53
8.83
9.12 9.40
9.67
9.93
10. 19
34
7.71
8.05 8.38
8.70
9.00
9.30 9.59
9.86
10. 13
10.40
7.86
8.21 8.55 8.87
9.18
9.48
9.77
10.06
10.33
10.60
36
8.01
37
8. 16
8.30
39
8.45
8.37 8.71 9.04 9.35 9.66 9.96
8.52 8.87 9.20 9.53 9.84
8.67 9.03 9.37 9.70 10.02
8.82 9.19 9.53 9.87 10.19
10.25
10.53
10.80
10.14
10.44
10. 72
11.00
10.32 10.62
10.50
10.91
11.20
10.81
11.10
11.39
40 8.59 8.98 9.34
41
9.12 9.50
42
10.03
8.74
10.20
8.88 9.27 9.65 10.01 10.37
9.69
9.86
10.36 10.68
10.99
11.29
11.59
10.54
10.86 11.17
11.48
11.78
10.71
11.04 11.36
11.67
11.97
43
9.02
9.42
9.80 10.17
10.53
10.88
11.21 11.54
11.85
12. 16
44
9.16
9.56
9.95 10.33
10.69
11.04
11.38
11.71
12.03
12.35
45
9.30
9.71
10. 10 10.49
10.85
11. 21
11.56
11.89
12.22
12.53
46 9.43
9.85
10.25
10.64 11.01
11.38
11.73
12.07
12.40
12.72
47 9.57 9.99 10.40 10.79 11.17
11.54
11.90
12. 24
12.58
12.90
48 9.70
10.14 10.55
10.95 11.33
11.70
12.06
12.41
12.75 13.08
49 9.84
10.28 10.70
11.10 11.49
11.87
12.23
12.58
12.93 13.27
50 9.97
13.10 13.45
10.41 10.84 11.25 11.64
12.40 12.76
12.03
HYDRAULIC TABLES
555
Table 45.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.150—Continued

.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
↑
SIRR
10
4.60
6.50
7.96 9.20
11
4.90
6.93
8.49 9.80
10.28
10.96 12.00
11.26
12. 17
13.01
13.79
14. 54
12.96
13.86
14.70
15.49
12
5. 19
7.34
8.99 10.39
11.61
12.72
13.74 14.69
15.58
16.42
13
5.48
7.75
9.49
10.95
12.25
13.42
14.49 15.49
16. 43
17.32
14
5.75
8.14 9.97
11. 51
12.87
14.10
15.23 16.28
17.26
18.20
15
17
23
25
27
28
29
30
31
32
37
38
**=*= 2228* ***** SH*** 1888 90934 49542 8
6.03
8.52
10.44
12.05
13.47 14.76 15.94 17.04
18.08
19.05
16
6.29
8.90
6.55 9.26
10.90 12.58
11.34 13.10
14.07 15.41
16.64 17.79 18.87
19.89
14.65 16.04 17.33 18.53
19.65
20.71
18 6.80 9.62 11.79
19 7.05
13.61
15.21
16.67 18.00
19.25
20.41
21.52
9.98
12.22
14. 11
15.77
17.28
18.66
19.95
21.16
22.31
20 7.30
21 7.54
10.32
12.64
14.60
16.32
17.88
19.31
20.65 21.90
23.08
10.66 13.06 15.08
16.86
18.47
19.95 21.33 22.62
23.85
7.78
11.00 13.47 15.56
17.39
19.05
20.58
22.00
23.33
24.60
24 8.24
8.01 11.33 13.88 16.02
11.66 14.28 16.49
17.92
19. 63
21.20
22.66
24.04
25.34
18.43
20.19
21.81
23.31
24. 73
26.07
8.47
11.98 14.67 16.94
18.94
20.75
22. 41
23.96
25.41
26.78
26
8.69
12.30
15.06
17.39
19.44 21.30
23.00
24.59 26.08
27.49
8.92 12.61
15. 44
17.83
19.94
21.84
23.59
25.22
26.75
28.19
9. 13
12.92
15.82
18.27
20.43
22.38
24. 17
25.84
27.40
28.89
9.35
13.22
16.20
18.70 20.91
22.91
24.74 26.45
28.05
29.57
9.56
13.53 16.57
19. 13
21.39
23.43
25.31 27.05 28.69
30.25
9.78
13.83 16.93
19. 55
21.86
23.95
25.87 27.65
29.33
30.91
9.99 14.12 17.30
19.97
22, 33
24.46
26.42 28.24 29.96
31.58
33 10.19 14.41 17.65
34 10.40 14.70 18.01
20.38
22.79
24.97
26.97
28.83
30.58
32.23
20.79
23.25
25.47
27.51
29.41 31. 19
32.88
35 10.60
14.99 18.36
21.20
23.70
25.96
28.04
29.98
31.80
33.52
36 10.80
15.27 18.71
21.60
24. 15
26.46 28.58
30.55
32.40
34. 16
11.00 15.56 19.05 22.00 24.60
26.94
29.10
31. 11
33.00
34.79
11.20
15.84
39
11.39
16. 11
19.39 22.39 25.04
19.73 22.79 25.48
27.43
29.63 31.67
33.59
35.41
27.91
30.14 | 32.22 | 34.18
36.03
11.59
16.39 20.07
23.17 25.91
28.38
41
11.78
16.66 20.40
23.56 26.34
42
11.97
12.16
44 12.35
16.93 20.73 23.94 26.77
17.20 21.06 24.32 27.19
17.46 21.39 24.69 27.61
30.66
28.85 31.16 33.32
29.32 31.67 33.86 35.91
29.78 32.17 34.39 36.48
30.24 32.67
32.77 34.76
36.64
35. 34
37.25
37.85
38.45
34.92 37.04
39.04
46
12. 53
12.72
17.72
21.71 25.07 28.03
30.70
33.16
35.45 37.60
39.63
48
47 12.90
13.08
17.99 22.03 25.44 28.44
18.25 22.35 25.80 28.85
18.50 22.66 26.17 29.26
31. 15
33.65
35.97 38.16
40.22
31.60
34. 14
36.49 38.71 40.80
32.05
34.62
37.01
39.25 41.38
13. 27
18.76 22.98
26.53 29.66
32.49
35. 10
37.52 39.80 41.95
50 13.45
19.01 23.29
26.89 30.06
32.93
35.57
38.03 40.34 42.52
556
HYDRAULIC TABLES
Table 46. -Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= -r2/31/2
n=.175

T
.00005 .00010 | .00015 | .00020 | .00025 | .00030 | .00035 | .00040 | .00045 | .00050
0.2
0.02
0.03
0.04
0.04 0.05
0.4
.03
0.05 0.05
05
•
.06
.07
0.06 0.06
0.06
.07
0.6
.08
.04
.09
.06
.09 .10
.07
.09
.10
.10
0.8
.10
.05
.11
.07
.12
.09
•
.13
.10
.12
.14
.13
.14
.15
.16
.16
1.0
.06
.08
.10
.12
1.2
.13
.15
.07
.16
.10
.12 .14
.17
.18
.15
.19
1.4
.17
.08
.18
.11
.19
.13
.20
.15
.17
.21
1.6
.18
.08
.20
.12
.21
.14
.23
.16
.24
.18
1.8
.20
.09
.22
.13
.23
.15
.25
.18
.26
.20
22
•
.24
.25
27
.28
2.0
.10
.13
.17
.19
.21
2.2
.10
. 23
.25
.14
.18
.27
.29
.20
2.4
.11
.23
.30
.25
.27
.15
.29
. 19
.30
.22
.24
.32
2.6
.26
.11
.28
.30
.16
.32
.20
.23
.34
.25
2.8
.28
.12
.30
.17
.32
.21
.34
.24
.36
.27
.29
.32
.34
.36
.38
3.0
.12
.18
.22
25
.28
3. 2
. 13
.31
.18
.23
.33
.35
.37
.26
39
.29
.32
3. 4
14
.34
·
.19
.37
24
.39
.41
.27
.30
.33
3.6
.14
.36
.20
.38
.24
.28
.41
.32
.43
3.8
.35
.15
. 21
.37
.40
.25
. 29
.42
.45
.33
.36
.39
.41
44
•
.46
4.0
.15
.21
.26
.30
.34
.37
4.2
.16
.40
.22
.43
.45
.27
.31
.48
.35
.38
4. 4
.41
.16
.23
.44
.28
.47
.32
.49
.36
.39
4. 6
.43
.17
.23
.46
.29
.48
.33
.51
.37
.41
4.8
.44
.17
.47
.24
.30
.50
.34
.38
.53
.42
.45
.48
.51
. 54
5.0
.18
.25
.30
.35 .39
.43
5.2
.18
.25
.46
.31
.50
53
.36
•
56
.40
5.4
.18
.44
·
.48
51
.26
.32
.54
.37
.57
.41
.45
5.6
.19
.49
.27
.52
.33
.55
.38
.42
.58
.46
5.8
.19
.50
.54
.27
.34
.57
.39 .43
.60
.47
.51
.55
.58
.61
6.0
.20
.28
.34
.40
.44
6. 2
.49
.20
.52
.29
.35
.56
.59
.41
6.4
.45 .50
.54
. 63
.21
.29
.57
.36
6.6
· 41
.61
.64
.46
.51
.21
.55
.30
.59
.37
.42
.62
.47
6.8
.52
.65
.22
.30
.56 .60
.37
.63
.43
.48
.67
.53
.57
.61
.65
.68
7.0
.22
.31
.38
44
·
.49
7.5
.23
.54 .58
.62
33
.40
8.0
· 46
.66
.69
51
.56
.61
.24
.65
.34
.42
.69
.48
.73
54
.59
8.5
•
.64
.25
.68
.35
.43
.72
.50
.76
.56
9.0
.61
.26
.37
.66
.71
.45
. 52
.75
.58
.79
64
•
.69
.73
.78
.82
9.5
.85
.27
.81
.38
.76
.47
.71
.54
.66
.60
HYDRAULIC TABLES
557
Table 46.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.175—Continued

8
.00055
T
.00060 | .00065 | .00070 | .00075 | .00080 | .00085 | .00090 | .00095 | .00100
0.2 0.07
0.07
0.07 0.08
0.08
0.08
0.08
0.4
•
11
0.09
0.09
.11
.12
.12
0.09
.13
. 13
.13
0.4
14
.11
.14
.11
.15
.12
.12
.13
.13
. 13
0.6
.14
.14
.15
•
.14
.15
.15
.16
.17
.17
.18
0.8
.18
.17
.19
.18
.19
.19
.19
.20
.21
.21
.22
.23
.23
1.0
.20
.21
.22
.22
23
•
.24
.25
1.2
.25
.26
.22
.27
.23
.24
.25
.26
.27
.28
.29
1.4
.25
.30
.30
.26
.27
.28
.29
.30
.31
1.6
.32
.33
.27
.28
.34
.30 .31
.32
.33
.34
1.8
.35
.29
.31
.36
.37
.32
.33
.34
.36
.37
.38
.39
.40
2.0
.32
.33
.34 .36
.37
.38
.39
2.2
.40
.34
.42
.35
.43
.37
.38
.39
.41
.42
.43
2.4
.36
.37
.39
.44
.45
.40
· 42
.43
.44
.46
2.6
.47
.38
.39
.48
.41
.42
.44
.45
47
2.8
.48
49
.40
.41
.51
.43
.45
.46
.48
.49
.51
.52
.53
3.0
· 41
.43
.45
.47
.48
.50
.51
.53
3.2
54
.43
.45
•
.56
47
.49
·
.50
.52
54
3.4
•
55
•
.45
.57
.58
.47
.49
.51
.53
.54
.56
3.6
.47
.49
.58
.59
.61
.51
.53
55
.56
.58
3.8
.48
.51
.60 .61
.63
.53
.55
.57
.58
.60
.62
.64
.65
4.0
.50
.52
.55
57
.59
61
•
.62
.64
4.2
66
.52
•
.68
.54
.56
.58
.61
63
.64
.66
4.4
.68
.53
.70
.56
.58
.60
.62
.64
.66
.68
4.6
.55
.58
.70
.72
.60
.62
4.8
.57
· 64
.66
.68
.59
.70 .72
.74
.62
.64
.66
.68
.70
.72
.74
.76
5.0
.58
. 61
.63
.66
.68
.70
.72
.74
5.2
.77
.79
.60
.62
•
65 .67
.70
.72
.74
.76
.79
5.4
.81
.61
.64
.67
.69
.72
.74
.76
.78
.81
5.6
.63
.83
.66
.68
.71
.73
.76
.78
.80
.83
5.8
.85
•
64
.67
.70
.73
.75
.78
.80
.82
.84
.87
6.0
.66
.69
.71
.74
.77
.79
6.2
.82
.84
.86
.67
.89
.70
.73
.76
.78
.81 .84 .86
6.4
.88
.69
.91
.72
.75
.77
.80
.83
.85
.88
6.6
.90
.70
.93
.73
.76
.79
.82
.85
.87
6.8
.90
.92
.94
.71
.75
.78
.81
.83
.86
.89
.91
.94
.96
7.0
.73
.76
.79
.82
.85
.88
.91
93
7.5
•
.96
.98
.76
.80
.83
.86
.89 .92
.95
.98
8.0
1.00
1.03
.80
.83
.87 .90 .93
.96
.99
1.02
8.5
1.05
.83
1.07
.87 .90
.94 .97 1.00
1.03
1.06
9.0
1.09
1. 12
.86
.90
.94
.97
1.01
1.04
1.07
1.10
1. 13
1.16
9.5
1.20
•
89
1.17
1. 14
.93
1.11
.97
1.08
1.01
1.04
558
HYDRAULIC TABLES
Table 46.-Velocity of water, v, in feet per second, based on
1.486
N
Manning's formula v= r2/31/2
n-.175—Continued

8
.0010
.0015
.0020 .0025 .0030 .0035 .0040 .0045
.0050
0.2
0.09
0.11
0.13
0.15
0.16 0.17 0.18
0.19
0.21
0.4
.15
.18
.21
.23
.25
.27
.29
.31
.33
0.6
.19
.23
.27
.30
.33
.36
.38
.41
.43
0.8
.23
.28
.33
.37
.40
.43
.46
.49
.52
1.0
1.2
1.4
1.6
1.8
ORT CO OO
.27
.33
.38
.42
.47
.50
.54
.57
.30
.60
.37
.43
.48
.53
.57
.61
.64
.68
.34
· 41
.48
.53
.58
.63
.67
.71
.75
37
.45
.52
.58
.64
.69
.73
.78
.82
.40
.49
..56
.63
.69
.74
.79
.84
.89
2.0
.43
.52
.60
.67
.74
.80
.85
.90
.95
2.2
· 45
.56
.64
.72
.79
.85
.91
.96
1.02
2.4
.48
.59
.68
.76
.83
•
.90
.96
1.02
1.08
2.6
.51
.62
.72
.80
.88
.95
1.02
1.08
1.14
2.8
.53
.65
.75
.84
.92
1.00
1.07
1.13
1.19
3.0
.56
.68
.79
.88
.97
1.04
1.12
1.18
1.25
3.2
.58
.71
.82
.92
1.01
1.09
1.17
1.24
1.30
3.4
.61
.74
.86
.96
1.05
1.14
1.21
1.29
1.36
3.6
.63
.77
.89
1.00
1.09
1.18
1.26
1.34
1.41
3.8
.65
.80
.92
1.03
1.13
1. 22
1.31
1.39
1.46
4.0
68
•
.83
.96
1.07
1.17
1.27
1.35
1. 44
1.51
4.2
.70
.86
.99
1. 11
1.21
1.31
1.40
1.48
1.56
4. 4
72
•
.88
1.02
1.14
1.25
1.35
1.44
1.53
1.61
4. 6
.74
.91
1.05
1.17
1.29
1.39
1.49
1.58
1.66
4.8
.76
.94
1.08
1.21
1.32
1.43
1.53
1.62
1.71
5.0
.79
.96
1.11
1.24
1.36
1.47
1.57
1.67
1.76
5.2
.81
.99
1.14
1.27
1.40
1.51
1.61
1.71
1.80
5.4
.83
1.01
1.17
1.31
1.43
1.55
1.65
1.75
1.85
5.6
.85
1.04
1.20
1.34
1.47
1.58
1.69
1.80
1.89
5.8
.87
1.06
1.23
1.37
1.50
1.62
1. 73
1.84
1.94
6.0
.89
1.09
1.25
1.40
1.54
1.66
1.77 1.88
1.98
6.2
.91
1. 11
1.28
1.43
1.57
1.70
1.81
1.92
2.03
6.4
.93
1. 13
1.31
1.46
1.60
1.73
1.85
1.96
2.07
6.6
.94
1. 16
1.34
1.49
1. 64
1.77
1.89
2.00
2. 11
6.8
.96
1. 18
1.36
1. 52
1.67
1.80
1.93
2.04
2. 16
7.0
.98
1.20
1.39
1.55
1.70
1.84
1.97
2.08
2.20
7.5
1.03
1.26
1.46
1.63
1.78
1.92
2.06
2.18
2.30
8.0
1.07
1.32
1.52
1.70
1.86
.2.01
2.15
2.28
2.40
8.5
1. 12
1.37
1.58
1.77
1.94
2.09 2.24
2.37
2.50
9.0
1.16
1.42
1.64
1.84
2.01
2.17
2.32
2.46
2.60
9.5
2.69
1.20
2.56
1.48
2.25 2.41
1.70
2.09
1.90
HYDRAULIC TABLES
559
co
Table 46.—Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/3g1/2
n=.175—Continued


.0055
.0060
.0065 .0070 .0075 .0080 .0085 .0090
.0095
.0100
J
0.2
0.22
0.22 0.23
0.24 0.25
0.4
.34
0.26 0.27 0.28 0.28
0.29
.36
.37 .39 .40
.41
.43
.44
.45
.46
0.6
.45
.47
.49
.51
.52
.54
.56
.57
.59
.60
0.8
.54
.57
.59
.61
.63
.65
.67
.69
.71
.73
1.0
.63
.66
68
•
.71
1.2
.71
.74
.77
.80
1.4
.79
.82
.86
.89
1.6
.86
.90
.94
.97
F885
.74
.76
.78
.81
.83
.85
.83
.86
.88
.91
.93
.96
.92
.95
.98
1.01
1.04
1.06
1.01
1.04
1.07
1. 10
1. 13
1.16
1.8
.93
.97
1.01
1.05
1.09
1. 12
1. 16
1. 19
1. 22
1.26
2.0
1.00
1.04
1.09
1. 13
1. 17
1. 21
1. 24
1.28
1.31
1.35
2.2
1.07
1. 11
1. 16
1.20
1.24
1.28
1.32
1.36
1.40
1.44
2.4
1. 13
1. 18
1. 23
1. 27
1.32
1.36
1.40
1. 44
1.48
1.52
2.6
1. 19
1. 24
1.29
1.34
1.39
1.44
1.48
1.52
1.56
1.61
2.8
1.25
1.31
1.36
1.41
1.46
1.51
1.56
1.60
1. 64
1.69
3.0
1.31
1.37
1. 42
1. 48
1.53
1.58
1.63
1.68
1.72
1.77
3.2
1.37
1. 43
1.49
1.54
1.60
1.65
1.70
1.75
1.80
1.84
3.4
1.42
1.49
1.55
1.61
1.66
1.72
1.77
1.82
1.87
1.92
3.6
1. 48
1.54
1.61
1.67
1.73
1.78
1. 84
1.89
1.94
1.99
3.8
1.53
1.60
1.67
1.73
1.79
1.85
1.91
1.96
2.02
2.07
4.0
1.59
1.66
1.73 1.79
1.85
1.91
1.97
2.03
2.09
2. 14
4.2
1. 64
1.71 1.78
1.85
1.91
1.98
2.04
2. 10
2. 15
2. 21
4. 4
1.69
1.77 1.84 1.91
1.97
2.04
2.10
2. 16
2. 22
2. 28
4. 6
1.74
1.82
1.89 1.97
2.03
2.10
2. 17
2.23
2.29
2.35
4.8
1.79
1.87
1.95
2.02
2.09
2.16
2.23
2.29
2.36
2.42
5.0
1.84
1.92
2.00
2.08
2. 15
2. 22
2.29
2. 36
2.42
2.48
5.2 1.89
1.97
2.05
2. 13
2. 21
2. 28
2.35
2.42
2.48
2.55
5. 4
1.94
2.02
2. 11
2. 19
2.26
2. 34
2.41
2.48
2.55
2.61
5.6
1.99
2.07
2. 16
2. 24
2.32
2.40
2.47
2.54 2.61
2.68
5.8
2.03
2. 12
2. 21
2. 29
2.37
2.45
2. 53
2.60 2.67
2.74
6.0
2.08
2.17
2. 26
2.35
2. 43
2. 51
2.58 2.66
2.73
2.80
6.2
2. 13
2. 22
2.31
2.40
2. 48
2.56
2.64 2.72
2.79
2.87
6.4
2.17
2.27
2.36
2 45
2.53
2.62 2.70 2.78
2.85
2.93
6.6
2. 22
2.31
2. 41
2.50
2.59
2.67
2.75
2.83
2.91
2.99
6.8
2.26
2.36
2.46
2. 55
2. 64
2. 73
2. 81
2.89
2.97
3.05
7.0
2.30
2.41
2.51
2.60
2.69
2.78
2.86
2.95
3.03
3.11
7.5
2. 41
2.52
2.62 2.72
2.82
2.91
3.00
3.09
3.17
3. 25
8.0
2.52
2.63
2.74 2.84
2.94
3.04
3. 13
3.22
3.31
3.40
8.5
2.62
2. 74
2.85 2.96
3.06
3. 16
3. 26
3.36
3.45
3. 54
9.0
2.72
2.85
2.96
3.07
3. 18
3. 29
3.39
3.49
3.58
3.67
9. 5
3.81
2.82
3.61 3.71
2.95
3.51
3.07
3. 41
3. 19
3.30
560
HYDRAULIC TABLES
Table 46.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 2/31/2
n
n=.175—Continued

.01
.02
.03
.04
.05
.06
.07
.08
.09
.10
0.2
0.4
0.6
0.8
2 - 1000
0.29
0.41
0.50 0.58
0.65
0.71
0.77
0.82
0.87
0.92
.46
.65
.80
.92
1.03
1.13 1.22 1.30
1.38
1.46
.60
.85 1.05
1.21
1.35 1.48
1.60
1.71
1.81
1.91
.73
1.03
1.27
1.46
1.64
1.79
1.94
2.07
2.20
2.31
1.0
.85
1.20
1.47
1.70
1.90
2.08
2.25
2.40
2.55
2.69
1.2
.96
1.36
1.66
1.92
2. 14
2.35
2.54
2.71
2.88
3.03
1.4
1.06
1.50
1.84
2. 13
2.38
2.60
2.81
3.01
3. 19
3.36
1.6
1.16
1.64
2.01
2.32
2.60
2.85 3.07
3.29
3.48
3.67
1.8
1.26
1.78
2.18
2.51
2.81
3.08
3.32
3.55
3.77
3.97
2.0
1.35
1.91
2.33
2.70
3.01
3.30 3.57
3.81
4.04
4. 26
2.2
1.44
2.03 2.49
2.87
3. 21
3.52
3.80
4.06
4.31
4.54
2.4
1.52
2.15
2.64
3.04
3.40
3.73
4.03
4. 31
4.57
4.81
2.6 1.61
2.27
2.78
3.21
3.59
3.93
4.25
4.54
4.82
5.08
2.8
1.69
2.39
2.92
3.37
3.77
4. 13
4.46
4.77
5.06
5.33
3.0
1.77
2.50
3.06
3.53
3.95
4.33
4.67
5.00
5.30
5.59
3.2 1.84
2.61
3. 19
3.69
4. 12
4.52
4.88
5.22
5.53
5.83
3.4
1.92
2.72
3.33
3.84
4.29
4.70
5.08
5.43
5.76
6.07
3.6
1.99
2.82
3.45
3.99
4.46
4.89
5. 28
5.64
5.98
6.31
3.8
2.07
2.92
3.58
4. 14
4.62
5.06
5.47
5.85
6.20
6.54
4.0
2.14
3.03
3.71
4.28
4.78
5.24
5.66
6.05
6.42
6.77
4. 2
2.21
3. 13
3.83
4.42
4.94
5.41 5.85 6.25
6.63
6.99
4.4
2.28
3.22
3.95
4.56 5.10
5.59
6.03
6.45
6. 84
7.21
4.6
2.35
3.32
4.07
4.70 5.25
5.75
6.21
6.64
7.05
7.43
4.8
2.42
3.42
4. 19
4.83
5.40
5.92
6.39 6.83
7.25
7.64
5.0
2.48
3. 51
4.30
4.97
5.2
2.55
3.60
4.41
5.10
5.70
5.4 2.61
3.70
4.53 5.23
5.55 6.08
6.24
5.84 6.40
6.57
7.02
7.45
7.85
6.74 7.21 7.65
8.06
6.92
7.39 7.84
8.27
5.6 2.68
3.79
4.64
5.36
5.99
6.56 7.08 7.57
8.03
8.47
5.8
2.74
3.88
4.75
5.48
6. 13
6.71
7.25
7.75
8.22
8.67
6.0
2.80
3.97
4.86 5.61
6.27
6.87
7.42
7.93
8.41
8.87
6.2 2.87
4.05
4.96
5.73
6. 41
7.02
7.58
8. 11
8.60
9.06
6.4 2.93
4. 14
5.07
5.85
6.55
7.17 7.74
8.28
8.78
9.26
6.6
2.99
4.23
5.17 5.98
6.68
7.32 7.90
8.45 8.96
9.45
6.8
3.05
4.31
5.28
6.10
6.82
7.47
8.06
8.62 9.14
9.64
7.0
3. 11
4.39 5.38 6.21
6.95
7.61
8.22
8.79
9.32
9.83
7.5
3.25
4.60 5.64 6.51
7.28
7.97 8.61 9.20
9.76
10.29
8.0
3.40
4.80 5.88 6.79
7.59
8.32
8.99 9.61
10. 19
10.74
8.5 3.54
5.00 6.13 7.07
7.91
8.66
9.36 10.00
10.61
11.18
9.0 3.67
5.20
6.36
7.35
8. 22
9.00
9.72
10.39
11.02
11.62
9.5
12.04
3.81
10.77 11.43
5.39
9.33 10.08
6.60
8.52
7.62
HYDRAULIC TABLES
561
Table 46.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/31/2
n
n=.175—Continued

.00005 .00010.00015 | .00020 | .00025 | .00030 | .00035 | .00040 | .00045 .00050
10 0.28
.30
31
33
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
21221 427-2 22234 22282 87*** ***** ***** 4****
0.39
0.48 0.56 0.62 0.68 0.74
0.79
0.84
0.88
42
.51
.59
•
.66
.73
.79
.84
.89
.94
.31
.45
.55
.63
.70
.77
.83
.89
.94
1.00
13
.33
.47
.57
.66
.74
.81
.88
.94
1.00
1.05
14
.35
.49
.60
.70
.78
.85
.92
.99
1.05
1.10
15
.37
.52
.63
73
.82
.89
.97
1.03
·
1.10
1.15
16
.38
.54
.66
.76
.85
.93
1.01
1.08
1.14
1.21
17
.40
.56
.69
.79
.89
.97
1.05
1.12 1.19
1.26
18
· 41
.58
.71
.82
.92
1.01
1.09
1.17
1.24
1.30
19
.43
.60
.74
.86
.96
1.05
1. 13
1.21
1.28
1.35
20
44
.63
.77
•
.88
.99
1.08
1.17
1.25
1.33
1.40
21
.46
.65
.79
.91
1.02
1.12
1.21
1.29
1.37
1.45
.47
.67
.82
.94
1.05
1.15
1.25
1.33
1.41
1.49
.49
.69
.84
.97
1.09
1. 19
1.28
1.37
1.46
1.54
.50
71
.87
1.00
1.12
1.22
1.32 1.41
1.50
1.58
25
.51
.73
.89
1.03
1.15
1.26
1.36
1.45 1.54
1.62
26
.53
.75
.91
1.05
1.18 1.29
1.39
1.49
1.58
1.67
27
.54
.76
.94
1.08
1.21
1.32
1.43
1.53 1.62
1.71
.55
.78
.96
1.11
1.24
1.36
1.46 1.57
1.66
1.75
29
.57
.80
.98
1.13
1.27
1.39 1.50
1.60
1.70
1.79
30
.58
82 1.00
1.16
·
1.30
1.42
1.53 1.64
1.74
1.83
.59
.84
1.03
1. 19
1.32
1.45
1.57
1.68
1.78
1.87
32
.61
.86 1.05
1.21
1.35
1.48
1.60 1.71
1.82
1.91
.62
.87
1.07
1.24
1.38
1.51
1.63
1.75 1.85
1.95
34
.63
.89
1.09
1.26
1.41
1. 54
1.67
1.78
1.89
1.99
.64
91
1.11
1.28
•
1.44
1.57
1.70
1.82
1.93
2.03
.65
.93
1. 13
1.31
1.46
1.60 1.73
1.85
1.96
2.07
.67
.94
1.15
1.33
1.49 1.63
1.76
1.89 2.00
2. 11
.68
.96
1. 18
1.36
1.52
1.66
1.80
1.92
2.04
2.15
.69
.98
1.20
1.38 1.54
1.69
1.83
1.95
2.07
2. 18
.70
.99
1.22
1.40 1.57
1.72
1.86
1.99
2.11
2. 22
.71
1.01
1.24
1.43
1.60 1.75 1.89
2.02
2. 14
2. 26
.73
1.03
1.26 1.45
1.62 1.78
1.92
2.05
2. 18
2.29
.74
1.04
1.28 1.47
1.65 1.81
1.95
2.08
2.21
2.33
.75 1.06
1.30 1.50
1.67
1.83
1.98
2.12
2.25
2.37
.76
1.07
1.32 1.52
1.70
1.86
2.01
2. 15
2. 28
2.40
.77
1.09
1.34 1.54
1. 72
1.89
2.04
2. 18
2.31
2.44
.78
1. 11
1.35
1.56
1.75
1.92
2.07
2.21
2.35
2.47
.79
1.12
1.37 1.59
1.77
1.94
2.10
2. 24
2.38
2.51
.80
1.14
1.39 1.61
1.80
1.97
2. 13
2.27
2.41
2.54
50
2.58
.81
2.44
1.15
2.30
1.41
2.16
1.63 1.82
2.00
562
HYDRAULIC TABLES
Table 46.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= r2/3g1/2
n
n=.175 -Continued

$
.00055 .00060.00065 |
.00065 .00070.00075.00080.00085.00090.00095 | .00100
31
32
33
38
39
43
FIRII =-=-= 222** BORAR AMAM- ---88 ***** 49592 2
10
0.92
0.97
1.00
1.04
1.08
1. 11
1. 15
1. 18
1. 21
1.25
11
.98
1.03
1.07
1.11
1. 15
1. 19
1. 22
1.26
1.29
1.33
12
1.04
1.09
1. 13
1.18
1.22
1.26
1.30
1.34
1.37
1.41
13
1.10
1.15
1.20
1. 24
1.29
1.33
1.37
1.41
1. 45
1.48
14
1.16
1.21
1.26
1.31
1.35
1.40
1.44
1.48
1.52
1.56
15
1. 21
1.27
1.32
1.37
1.41
1.46
1.51
1.55 1.59
1.63
16
1.26
1.32 1.37
1.43
1.48
1.53
1.57
1.62 1.66
1.71
17 1.32
1.38
1.43
1.49
1.54
1.59
1. 64
1.68
1.73
1.78
18 1.37
1.43
1.49
1.54
1.60
1.65
1.70
1.75
1.80
1.84
19
1.42
1.48
1.54
1.60
1.66
1.71
1.76
1.81
1.86
1.91
20
1.47
1.53
1.60
1.66
1.71
1.77
1.82
1.88
1.93
1.98
21
1.52
1.58
1.65
1.71
1.77
1.83
1.88 1.94
1.99
2.04
1.56
1. 63
1.70
1.76
1.83
1.89
1.94 2.00
2.05
2. 11
23
1.61
1.68
1.75
1.82
1.88
1.94
2.00
2.06
2.12
2. 17
24 1.66
1.73
1.80
1.87
1.93
2.00
2.06
$2.12
2. 18
2.23
25
1.70
1.78
1.85 1.92
1.99
2.05
2. 12
2. 18
2.24
2.30
26
1.75
1.83
1.90
1.97
2.04
2.11
2. 17
2.24
2.30
2.36
27
1.79
1.87 1.95
2.02
2.09
2.16
2.23
2. 29
2.36
2.42
28
1.84
1.92
2.00
2.07
2. 14
2. 21
2. 28
2. 35
2.41
2.48
29
1.88
1.96
2.04
2.12
2.20
2.27
2.34
2.40
2. 47
2.53
30
1.92
2.01
2.09
2. 17
2. 25
2.32
2.39
2.46
2. 53
2.59
1.97
2.05
2. 14
2.22
2. 29
2. 37
2. 44
2.51
2.58
2.65
2.01
2. 10
2. 18
2. 26
2.34
2.42
2.50
2.57
2. 64
2.71
2.05
2.14
2. 23
2.31 2.39
2.47
2. 55
2.62
2.69
2.76
34 2.09
2.18
2.27
2.36 2.44
2.52
2.60
2.67
2.75
2.82
35
2. 13
2.23
2.32 2.40
2.49
2.57
2.65
2.73 2.80
2.87
36
2.17
2.27
2.36 2.45 2.54
2.62
2.70
2.78 2.85 2.93
37
2.21
2. 31
2.40 2.49 2.58
2.67
2.75
2.83
2.91
2.98
2.25
2.35
2.45
2.54
2.63
2.71
2.80
2.88 2.96
3.04
2.29
2.39
2.49
2.58
2.67
2.76
2.85 2.93
3.01
3.09
40 2.33
2. 43
2.53
2.63
2.72
2.81
2.90
2.98
3.06
3. 14
41 2.37
2. 47
2.57
2. 67
2.77
2.86
2.94
3.03
3. 11
3. 19
42
2.41
2. 51
2.62
2.71
2.81
2.90
2.99
3.08
3.16
3. 24
2.44
2.55
2.66
2.76
2.85
2.95
3.04
3. 13
3.21
3.30
44
2.48
2.59 2.70 2.80
2.90
2.99
3.09
3. 17
3.26
3.35
2.52
2. 63
2.74 2.84
2.94
3.04
3. 13
3.22
3.31
3.40
46
2.56
2.67 2.78 2.88
2.99
3.08
3.18
3.27
3.36
3.45
47
2.59
2.71
2.82 2.93
3.03
3. 13
3.22
3.32
3. 41
3.50
48
2. 63
2.67
2.75
2.86 2.97
3.07
3. 17
3.27
3.36
3.46
3.55
2.79 2.90 3.01
3. 11
3.22
3.32
3. 41
3.50
3.60
50 2.70
2.82
2.94
3.05
3. 16
3.26
3.36
3.46
3.55
3. 64
HYDRAULIO TABLES
563
Table 46.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= _r2/3g1/2
n
n=.175—Continued

$
.0010
.0015
.0020
.0025
.0030
.0035 .0040
.0045
*0050
r
27
29
31
33
35
36
37
38
39
FIRRI --E-2 22232 *2*** S**** ----89
10
1.25
1.53
1.76
1.97
2.16
2.33
2.49
2.64
2.79
11
1.33
1.63
1.88
2.10
2.30
2.48
2.66
2.82
2.97
12
1.41
1.72
1.99
2.23
2. 44
2. 63
2.81
2.99
3. 15
13
1.48
1.82
2.10
2.35
2.57
2.78
2.97
3. 15
3.32
14
1.56
1.91
2. 21
2.47
2.70
2.92
3.12
3.31
3.49
15
1.63
2.00
2.31
2.58
2.83
3.06
3.27
3.46
3.65
16 1.71
2.09
2.41
2.70
2.95
3.19
3.41
3.62
3.81
17
1.78
2.17
2.51
2.81
3.07
3.32
3.55
3.77
3.97
18 1.84
2.26
2.61
2.92
3. 19
3.45
3.69
3.91
4. 12
19 1.91
2.34
2.70
3.02
3.31
3.58
3.82
4.06
4. 28
20
1.98 2.42
2.80
3. 13
3.43
3.70
3.96
4.20
4. 42
21
2.04
2.50
2.89
3. 23
3.54
3.82
4.09
4.34
4.57
2.11
2.58
2.98
3.33
3.65
3.94
4. 22
4.47
4.71
2.17 2.66
3.07
3.43
3.76
4.06
4.34
4.61
4.86
24
2.23
2.74
3.16
3.53
3.87
4. 18
4.47
4.74
5.00
25
2.30
2.81
3.25
3.63
3.98
4.30
4.59
4.87
5. 13
26 2.36 2.89
3.33
3.73
4.08
4. 41
4.71
5.00
5.27
2.42 2.96
3.42
3.82
4. 19
4.52
4.83
5.13
5.40
28
2.48 3.03
3.50
3.91
4. 29
4. 63
4.95
5. 25
5.54
2.53
3.10
3.58
4.01
4.39
4. 74
5.07
5.38
5. 67
30
2.59
3.18
3.67
4.10
4.49
4.85
5. 19
5.50
5.80
2.65
3.25
3.75
4. 19
4.59
4.96
5.30
5.62
5.93
32
2.71
3.31
3.83
4. 28
4.69
5.06
5.41
5.74
6.05
2.76 3.38 3.91
4.37
4.79
5. 17
5.53
5.86
6.18
34
2.82 3.45
3.99
4.46
4.88
5.27
5.64
5.98
6.30
2.87
3.52
4.06
4.54
4.98
5.38
5.75
6.09
6.42
2.93
3.59
4. 14
4. 63
5.07
5.48
5.86
6. 21
6.55
2.98
3.65
4. 22
4.71
5.16
5.58
5.96
6.32
6.67
3.04
3.72
4. 29
4.80
5. 26
5.68
6.07
6. 44
6.79
3.09
3.78
4.37
4.88
5.35
5.78
6.18
6. 55
6.91
40
3. 14
3.85
4. 44
4.97
5.44
5.88
6. 28
6.66
7.02
41
3.19
3.91
4.52
5.05
5.53
5.97
6.39
6.77
7.14
42
3.24
3.97
4.59
5. 13
5.62
6.07
6.49
6.88
7.25
43
3.30
4.04
4.66
5. 21
5.71
6. 17
6.59
6.99
7.37
44
3.35
4. 10
4.73
5.29
5.80
6.26
6.69
7.10
7.48
45
3.40
4.16
4.80
5.37
5.88
6.36
6.79
7.21
7.60
46
3. 45
4.22 4.88
5.45
5.97
6.45
6.89 7.31
7.71
47
3.50
4. 28
4.95
5.53
6.06
6. 54
6.99
7.42
7.82
48
3.55
4. 34
5.02
5.61
6. 14
6.64
7.09 7.52
7.93
49
3.60
4. 40
5.09
5.69
6.23
6.73
7.19 7.63
8.04
50
8. 15
3.64
7.73
4. 46
7.29
5. 15
6.82
5.76
6.31
564
HYDRAULIO TABLES
Table 46.-Velocity of water, v, in feet per second, based on
1.486
n
Manning's formula v= r2/31/2
n=.175-Continued
$
.0055
.0060 .0065
.0070
.0075 .0080
.0085 .0090 .0095 .0100
T
10
2.92
3.05
3. 18
3.30
3. 41
3.53
3.63
3.74
3.84
3.94
11
3. 11
3.25
3.39
3.51
3.64
3.76
3.87
3.98
4.09
4.20
12
3.30
3.45
3.59
3.72
3.85
3.98
4. 10
4. 22
4.34
4.45
13
3.48
3.64
3.79
3.93
4.07
4.20
4.33
4.45
4. 58
4.69
14
3.66
3.82
3.98
4. 13
4. 27
4. 41
4.55
4.68
4.81
4.93
15
3.83
4.00
4. 16
4.32
4.47
4.62
4.76
4.90
5.03
5. 16
16
4.00
4.18
4.35
4. 51
4.67
4.82
4.97
5. 12
5.26
5.39
17
4.16
4.35
4.53
4.70
4.86
5.02
5. 18
5.33
5.47
5.61
18
4. 33
4.52
4.70
4.88
5.05
5. 22
5.38
5.53
5.68
5.83
19
4.48
4.68
4.87
5.06
5.24
5.41
5.57
5.74
5.89
6.05
20
4.64
4. 85
5.04
5.23
5.42
5.60
5.77
5.94
6. 10
6.26
21
4.79
5.01
5.21
5.41
5.60
5.78
5.96
6. 13
6.30
6.46
22
4.94
5. 16
5.38
5.58
5.77
5.96
6. 15
6.32
6.50
6.67
23
5.09
5.32
5.54 5.75
5.95
6.14
6.33
6.52
6.00
6.87
24
5. 24
5.47
5.70
5.91
6.12 6.32
6.51
6.70
6.89
7.07
25
5.38
5.62
5.85
6.07
6.29
6.49
6.69
6.89
7.08
7.26
26
5.53
5.77
6.01
6.24
6.45 6.67
6.87 7.07
7.26
7.45
27
5.67
5.92
6. 16
6.39
6.62
6.84
7.05 7.25
7.45
7.64
28 5.81
6.06
6.31
6.55
6.78
7.00
7.22 7.43 7.63
7.83
29
5.94
6.21
6.46
6.71 6.94
7.17
7.39
7.60
7.81
8.02
30
6.08
6.35
6.61 6.86
7.10
7.33
7.56
7.78
7.99
8.20
31
6. 21
6.49
6.76
7.01
7.26
7.49 7.73
7.95
8.17
8.38
32
6.35
6.63
6.90
33
6.48 6.77 7.04
7.16 7.41
7.31
7.66
7.89
8. 12
8.34
8.56
7.57 7.81
8.05
8.29
8.52
8.74
31
6.61
6.90
7.18
7.46
7.72
7.97
8. 22
8.45
8.69
8.91
35
6.74
7.04 7.33 7.60
7.87
8.13
8.38
8.62 8.86
9.09
36
6.87
7.17 7.46
7.75
8.02
8.28 8.54
8.78 9.02
9.26
37
6.99
7.30 7.60
7.89
8. 17
8.43
8.69 8.94
9.19
9.43
38 7.12
7.43 7.74
8.03
8.31
8.58
8.85
9.11 9.35
9.60
39
7.24
7.56
7.87
8.17
8.46
8.73 9.00
9.26
9.52
9.77
40
7.37
7.69
8.01
8.31
8.60
8.88 9.16
9.42
9.68
9.93
41
7.49
7.82
8. 14
8.45
8.74
9.03
9.31
9.58 9.84 10.10
42 7.61
7.95
8.27
8.58 8.89
9.18
9.46 9.73
10.00
10.26
43
8.07
44
7.73
7.85 8.20 8.53 8.85 9.17
8.40 8.72 9.03
9.32
9.61 9.89
10. 16
10.42
9.47
9.76
10.04
10.32
10.58
45
7.97
46 8.08
8.32
8.44
47
8.20
8.57
48
8.32
8.69 9.04
49
8.43
8.81 9.17
9.51
8.66 8.99 9.30
9.61 9.90
8.79 9.12 9.44 9.75 10.05
8.92 9.25 9.58 9.89 10.20
9.38 9.71 10.03 10.34
9.85 10.17 10.48
10. 19
10.47
10.74
10.34
10.63
10.90
10.49 10.78
11.06
10.64
10.79 11.08
10.93
11. 22
11.37
50
11.52
8.55
10.93 11.23
8.93 9.29
9.98 10.31 10.63
9.64
HYDRAULIC TABLES
565
T
Co
Table 46.-Velocity of water, v, in feet per second, based on
1.486
Manning's formula v= 72/31/2
n
n=.175—Continued

.01
.02
.03
.04
.05
.06
.07 .08
.09
.10
10
3.94
5. 57
6.83
7.88
8.81
9.65
10.43
11.15
11.82
12. 46
11
4.20
5.94
7.27 8.40 9.39
10. 29
11.11
11.88 12.60
13.28
12
4.45
6.29
7.71
8.90
9.95
10.90
11.78 12.59 13.35
14.07
13
4.69
6. 64
8. 13
9.39
14
4.93
6.98
8.54
10.50 11.50
9.86 11.03 12.08
12.42 13.28 14.08
14.85
13.05
13.95
14.80
15.60
26
27
30
33
37
38
*-=-= 2*28* *2EAR AM3** *8888
15
5. 16
7.30
8.95
10.33 11.55
12.65
13.66
14.61
15.49
16.33
16
5.39
7.63
9.34
10.78
12.06
13.21
14. 27
15.25
16. 18
17.05
17
5. 61
7.94
9.72
11.23
12.55
13.75
14.85
15.88
16. 84
17.75
18
5.83
8.25
10.10
11.66
13.04
14.29
15.43
16. 50
17.50
18. 44
19
6.05
8.55
10.47 12.09
13.52
14.81
16.00
17.10
18. 14
19.12
20
6.26
8.85 10.84
12.51
13.99
15.33
16. 55
17.70
18.77
19. 78
21
6. 46
9.14 11.19 12.93
14.45
15.83
17.10
18.28
19.39
20.44
6.67
9.43
11.55 13.33
14.91
16.33
17. 64
18.86
20.00
21.08
23 6.87
9.71
11.89
13.74
15. 36
16.82
18. 17
19.42
20.60
21.72
24
7.07
9.99
12. 24
14. 13
15.80
17.31
18.69
19.98
21.20
22.34
25
7.26
10.27
12.57
14.52
16. 23
17.78
19.21 20.53 21.78
22.96
7.45
10. 54
12.91
14.90
16. 66
18.25
19.72 21.08
22.36
23. 57
7.64
10.81
13. 24
15. 28
17.09
18.72
20.22
21.62
22.93
24. 17
28 7.83
29 8.02 11.34 13.88
11.07
13.56
15.66
17.51
19. 18
20.72
22.15
23.49
24.76
16.03
17.92
19.63
21. 21
22.67
24.05
25. 35
8.20 11.59 14.20
16. 40
18.33
20.08
21.69
23.19
24.60
25.93
31 8.38 11.85
32
14.51
16.76
18. 74
20.53
22. 17
23.70
25.14
26.50
8.56 12.10
14.82
17.12
19. 14
20.96
22.64
24. 21
25. 68
27.07
8.74 12.35
15. 13
17.47
19.53
21.40 23.11
24.71
26. 21
27.63
34 8.91 12.60
15.44
17.82
19.93
21.83
23.58
25. 21
26.74
28. 18
35 9.09
12.85
15.74
18.17 20.32
22.26 24.04
25.70
27.26
28.73
36 9.26 13.09 16.04
18.52 20.70
22.68 24.49 26.19
27.77
29.28
9.43 13.33
16.33
18.86 21.08
23.10 24.95
26.67 28.29
29.82
9.60 13.57
16. 62
19.20
21.46
23. 51
25.39 27.15
28.79
30.35
39 9.77 13.81
16.91
19.53
21.84
23.92
25.84
27.62
29.30
30.88
40
9.93
14.05
17.20
19.86
22. 21
24.33
26.28
28.09
29.79 31.41
41
10. 10
14.28
17.49 20. 19
22.58
24.73
26. 71
28.56
30.29
31.93
42
10.26
14.51
17.77
20. 52
22.94
25. 13
27.15
29. 02
30.78
32. 44
43
10.42
14.74 18.05
20.84
23.30
25. 53
27.57
29.48
31.27
32.96
44 10.58
14.97
18.33 21.17 23.66
25.92
28.00
29.93
31.75
33.47
45
10.74
15. 19
18.61 21.49 24.02 26.31 28.42
30.39
32.23
33.97
46
10.90
47
11.06
48
11. 22
49
11.37
15.42 18.88 21.80 24.38
15. 64 19.15 22.12 24.73 27.09 29.26
15.86 19.43 22.43 25.08 27.47 29.67
16.08 19.69 22.74 25.43 27.85 30.08 32.16
26.70
28.84 30.83
32.70
34. 47
31.28
33. 18
34.97
31.72
33.65
35.47
34. 11
35.96
50 11.52
16.30 19.96 23.05
25.77
28.23
30.49 32.60 34.57
36. 44
о

1
1