bZ/.42 I FINAL June 1975 STATEMENT OF FINDINGS 7 l I ft INTRODUCTION MOLINE, ILLINOIS LOCAL FLOOD PROTECTION MISSISSIPPI RIVER I have reviewed and evaluated, in the light of overall public interest, the alternatives considered to reduce urban flood damage along the Mississippi River at Moline, Illinois. The proposed project is presently in the advance engineering and design stage. BACKGROUND A flood protection project at Moline, consisting of a system of levees and floodwalls from the west city limits to 34th Street, was authorized in June 1972 under provisions of Section 201 of the Flood Control Act of 1965, substantially in accordance with the recommendations of the Secretary of the Army and the Chief of Engineers in House Document 92-161. That document was prepared in partial compliance with two congressional resolutions, dated 10 September 1944, regarding flood protection along the Upper Mississippi River, and with Section 208 of Public Law 89-298 regarding flood protection at Moline. Funds were appropriated by Congress in 1973 for preparation of a Phase I General Design Memorandum. The purpose of a Phase I study is to either reaffirm the project as authorized or to reformulate the project plan to reflect current conditions. Public involvement during the Phase I study included two public meetings, one in September 1974 and one in April 1975, numerous meetings with town officials, other Federal agencies, state agencies and local interests. The public involvement program contributed to the formulation of mitiga¬ tion and beautification proposals along Sylvan Slough. Comments received at meetings and by correspondence contributed to the formulation of the selected plan downstream from the Iowa-Illinois hydro-electric plant, including the proposed work on Sylvan Island and on two hydro-electric plants. The selected plan includes the reconstruction of an existing levee on Sylvan Island and structural protection for the Rock Island Arsenal’s and Iowa-Illinois Gas and Electric Company’s hydro-electric plants. This action will reduce the height of the levee and floodwall required adja¬ cent to the Sylvan Slough along the Moline shore. The US Department of the Interior, the Illinois Department of Conservation, and Augustana College expressed concern for the preservation and development of fishing and outdoor recreation resources in this area of the project. On 6 May 1975, the Mayor and City Council of Moline adopted a resolution stating their desire to rehabilitate Sylvan Island by reforestation and developing opportunities for dispersed recreation activities, including hiking and walking, bird watching, and fishing. I feel that the city’s plan and mitigation proposals are compatible and both plans will preserve and enhance the recreational opportunities in this area. Moline Consumers Company initially expressed disapproval of the levee alignment through company property, but has subsequently indicated that it is in general agreement with the concept of the flood control design. The company does, however, request that the Corps conduct further review, and possible modification, to insure that the flood control facilities are compatible with the company's riverfront operation requirements. Review of project features and further coordination with Moline Consumers Company will be done during the Phase II General Design Memorandum study. THE SELECTED PLAN The selected plan consists of about 3.4 miles of earthen levees and flood- walls from the west city limits of Moline to 34th Street. The plan also includes a system of improved levee and floodwall between the Moline shore and the Arsenal Island. The proposed plan will provide flood pro¬ tection against a Mississippi River flood which has a 0.5 percent chance of being equalled or exceeded in any given year. Such a flood will occur once in 200 years on the average, but could occur in any year. The project will include three stormwater pumping plants and appurtenant interior drainage facilities. The ratio of annual flood reduction bene¬ fits to the annual cost of construction, operation, and maintenance is 1.3 to 1.0. ALTERNATIVES Alternatives to the selected plan include structural and non-struetural flood reduction plans, plus continuation of flood plain management, including emergency warning, evacuation, and flood-fighting plans along the entire plain. Structural flood protection for the area between 34th Street and 55th Street is not economically feasible. A levee system along the north side of River Drive in this reach would also prevent park development. Evacuation or floodproofing of all structures in the flood plain is eco¬ nomically infeasible. Evacuation would be unacceptable. Floodproofing 2 . . . ■ . ■ • • . . . for the majority of buildings in the flood plain would be structurally infeasible and unacceptable to individual property owners. Access to most structures, even if floodproofed, would not be possible during a flood situation. Flood insurance will not reduce existing flood damages. Individual prop¬ erty owners would be reimbursed for damage but the cost to the nation would remain the same or increase due to program administration costs. Future flood damages would be reduced as a result of restrictions for future development. A no-action plan would involve continuation of emergency warning, evacu¬ ation, flood-fighting, and flood insurance. Flood damages and community problems in transportation, health, and social well-being would continue. EVALUATION Environmental About 14 acres of land will be required for construction of earthen levees and floodwalls at present. This land supports generally disturbed, successional riparian vegetation of limited aesthetic quality. A short-term increase in sediment deposition will occur during construc¬ tion of the project. The primary areas of impact will be between 16th Street and 27th Street where earthen levees are proposed. Siltation due to construction along the Sylvan Slough tailrace, which is a primary sport fishing area, is expected to be minimal because of location and type of structures proposed. Social Well-Being Mitigation features proposed along the Sylvan Slough tailrace will mini¬ mize impacts on existing recreation facilities and will assure continued access to the river. The project will have minimal effect on the river vista. Temporary interruptions in some business activities, utility lines, and transportation will occur during construction. The proposed project is consistent with the downtown redevelopment plans and is consistent with the comprehensive recreation plan. 3 . .. £' . ■ Engineering Earthen levees are proposed where land is available, to avoid the high cost of floodwall construction. Some reaches of levee will have riprap protection on the riverside slope, to protect against wave action and stream velocities. Floodwalls will either be poured concrete I-wall or T-wall or precast concrete, depending on the height of the wall and type of foundation encountered. The proposed project will not significantly affect future flood heights across from or upstream of Moline. The existing flood fringe area cannot currently carry flood flows because of buildings, utilities, and railroad tracks. Economic Studies indicate that flood protection at approximately the 300-year fre¬ quency flood level will provide the maximum net benefits. A flood pro¬ tection height equal to the 200-year frequency flood level is recommended, however, to be consistent with local protection projects at East Moline, Rock Island, and the Rock Island Arsenal. Consideration was also given to providing Standard Project Flood protection due to the intense urban development in the project area. Upon completion of an analysis of the higher level of protection, the city of Moline and the State of Illinois indicated a preference for the 200-year level of protection. The estimated Federal first cost is $15,450,000 and the estimated non- Federal first cost is $1,800,000; these total $17,250,000. The Federal average annual charge is $1,093,186 and the non-Federal average annual charge is $154,551; these total $1,247,737. The estimated average annual benefits are $1,584,200, resulting in an annual benefit to annual cost ratio of 1.30. CONCLUSION I find that the selected plan at its current stage of development is based on a thorough analysis and evaluation of alternatives for flood damage reduction at Moline, Illinois. Adverse effects will be avoided, wherever possible, and when not possible, be mitigated or outweighed by contrasting beneficial effects. The study has resulted in the refor¬ mulation of the authorized project to meet current needs of the city of Moline. (date) F. W. MUELLER, Jr. Colonel, Corps of Engineers District Engineer 4 ' ■ * . . . - ■ ■ STATEMENT OF FINDINGS MOLINE, ILLINOIS LOCAL FLOOD PROTECTION MISSISSIPPI RIVER I concur in the preceding Statement of Findings. /(jbcutM /tlf dXte Ui IICHARD f.' HARRIS Major General, USA Division Engineer > % ADDENDUM In June 1975, the Rock Island District submitted to higher authority a Phase I General Design Memorandum (GDM) for Moline, Illinois, along with a Final Environmental Impact Statement (FEIS). The reports were returned for additional interior drainage analysis because of regulation changes, and the economic justification of Reach C was also restudied. Supplement No. 1 to the GDM was pre¬ pared and submitted in May 1978, to provide a basis for approval of the interior drainage plan. Reach C was not found to be economi¬ cally justified, after application of updated benefit/cost criteria, and has been abandoned. The project area, as presently planned, is limited to the flood plain area of Reach A, as shown in Plate 1, and the environmental impacts to this Reach remain unchanged. The following paragraphs and pages in this report are to be deleted, in whole or in part, because of the above changes: Paragraph Page 3 4 4 4 4 16 16 26 29 32 41 44 47 49 49 49 49 50 50 52 52 53 54 1.031 1.032 1.033 1.034 1.041 2.02216 2.02217 2.0424 2.0472 2.0496 4.0112 4.0134 4.034 4.0421 4.0422 4.0423 4.0424 4.0425 4.0426 4.0454 4.0462 4.055 5.06 Economic data contained in Section VI, "Alternatives to the Proposed Action" in this report, retains dollar amounts as originally com¬ puted for cost-comparison purposes. The Economic Data Sheet has been revised and updated to provide the most recent summarization of estimated costs and benefits. The Rock Island District will publish a new draft and final Environ¬ mental Impact Statement to coincide with the preparation of the Phase II General Design Memorandum in the early part of 1979. Agencies will be given the opportunity for review and comment on the draft EIS prior to preparation of the Final EIS. ' . '“'-v / . ' ■ ' - FINAL ENVIRONMENTAL IMPACT STATEMENT Mississippi River Local Flood Protection Moline, Illinois June 1975 Prepared by U.S. ARMY ENGINEER DISTRICT, ROCK ISLAND Rock Island, Illinois I SUMMARY Moline, Illinois Local Flood Protection ( ) Draft (x ) Final Environmental Statement Responsible Office: U.S. Army Engineer District, Rock Island Clock Tower Building Rock Island, Illinois 61201 Commercial phone: A/C 309 788-6361 1. Name of Action: (X) Administrative ( ) Legislative 2. Description of Action : Phase I, General Design Memo¬ randum for flood control protection for Moline, Illinois. The proposed local protection plan, with the City of Moline as the cooperating agency, will offer flood protection to industrial, commercial, public and residential developments within Moline from flooding of the Mississippi River. The project is divided into Reach A and Reach C, two separable units of protection. Reach A consists of a levee and floodwall system adjacent to the riverfront from the western City Limits to 34th Street as well as an improved, higher levee on Sylvan Island; it has a sepa¬ rable benefit-cost ratio of 1.3 : 1.0. Reach C would include construction of a levee and floodwall from 48th Street to the eastern City Limits and has a separable benefit-cost ratio of .73 : 1.0. Both reaches will involve the raising of and modifi¬ cations to existing sewer lines, railroads and streets. The overall benefit-cost ratio for the entire project is 1.2 : 1.0. 3. a. Environmen tal Impacts: The proposed plan provides flood protection to 390 acres of the City. Approximately 27 acres of land would be required for the protection structures; this land presently supports generally disturbed, low quality riparian vegetation of some esthetic appeal. A small marsh between 1 6th and 20th Streets would be eliminated by the levee. Another levee would be constructed on land now proposed for park use between 52nd and 55th Streets; replacement would be made through filling and straightening the existing shore to the harbor line. Tem¬ porary siltation is expected to occur along the shoreline during con¬ struction, possibly resulting in reduction of benthic communities, and hence fishing activities; upon completion, these communities are expected to return to normal. A secondary impact of the pro¬ tection project might be a revitalization of the Moline flood plain area and central business district, due to the assurance of flood l protection. This revitalization might take the form of intensi¬ fied industrial operations and redevelopment projects similar to that of the First Neighborhood Redevelopment Corporation of Moline. 4. b. Adverse Environmental Effects : Adverse environmental impacts would be: loss of the marsh between 16th and 20th Streets; commitment of 27 acres of land for the levee and floodwall struc¬ ture; the temporary elimination of existing benthic communities due to siltation; loss of proposed recreation land between 52nd and 55th Streets, to be mitigated by fill out to the harbor line and completion of the riverfront parkway; the destruction of riparian vegetation along Reach A (including Sylvan Island) and Reach C and additional temporary disturbances to ecosystems on Sylvan Island prompted by necessary construction activities; and temporary impacts associated with noise and air pollution during the construction phase. 5. Alternatives : Alternatives studied included no project structural protection for Reach A alone, without additional meas¬ ures on Sylvan Island and along Reach C; structural protection the length of the Moline riverfront from the western city limits to 55th Street; a combination of non-structural alternatives, including partial evacuation of the flood plain, floodproofing of buildings, flood plain zoning, and participation in the Federal flood insurance program; and the continuation of the existing flood plain manage¬ ment program 6. Comments Received: U. S. Congressman Thomas Railsback Advisory Council on Historic Preservation United States Department of Agriculture, Soil Conservation Service United States Department of Agriculture, Forest Service United States Department of Commerce United States Department of Housing and Urban Development United States Department of the Interior, Fish and Wildlife Service United States Department of the Interior, Office of the Secretary United States Department of Transportation, Federal Highway Administration United States Environmental Protection Agency Illinois Task Force on Flood Control % li Illinois Department of Conservation Illinois Archaeological Survey Bi-State Metropolitan Planning Commission City of Moline, Water Department Augustana College Chicago, Rock Island and Pacific Railroad Moline Consumers Company 7. Draft Statements to CEQ April 4, 1975 Final Statement to CEQ in * ' FINAL ENVIRONMENTAL IMPACT STATEMENT Mississippi River, Moline, Illinois Local Flood Protection Project TABLE OF CONTENTS Title Page 1. PROJECT DESCRIPTION 1 1.01 INTRODUCTION 1 1.02 REACH A 2 1.03 REACH C 3 1.04 MITIGATION 1.05 AUTHORIZING DOCUMENT 1.06 LAND ACQUISITION AND PROJECT COSTS 6 1.07 BENEFIT-COST ANALYSIS 7 2. ENVIRONMENTAL SETTING WITHOUT THE PROJECT 9 2.01 AQUATIC ENVIRONMENT 9 2.02 TERRESTRIAL ENVIRONMENT 13 2.03 HUMAN RESOURCES 19 2.04 LAND USE 22 2. 05 DEVELOPMENT AND ECONOMY 23 3. RELATIONSHIP OF THE PROPOSED ACTION TO LAND USE PLANS 36 3. 01 OBJECTIVES AND SPECIFIC TERMS OF LAND USE PLANNING IN PROJECT AREA 36 3. 02 RELATIONSHIP OF PROPOSED PROJECT TO EXISTING OR PRO¬ POSED LAND USE PLANS AND CONFLICTS, IF ANY 38 ■'f IT) TABLE OF CONTENTS (cont'd) (J Title Page 4. PROBABLE IMPACT OF THE PROPOSED ACTION ON THE ENVIRONMENT 41 4. 01 IMPACTS ON THE AQUATIC ENVIRONMENT 41 4. 02 IMPACTS ON THE TERRESTRIAL ENVIRONMENT 44 4. 03 HUMAN RESOURCES 46 4. 04 LAND USE 47 4. 05 DEVELOPMENT AND ECONOMY 53 5. ANY PROBABLE ADVERSE ENVIRONMEN¬ TAL IMPACTS WHICH CANNOT BE AVOIDED 54 6. ALTERNATIVES TO THE PROPOSED ACTION 55 6.01 6 . 02 6. 03 6. 04 6. 05 6. 06 6. 07 7. THE RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN’S ENVIRON¬ MENT AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY 8. IRREVERSIBLE AND IRRETRIEVABLE COMMITMENTS OF RESOURCES WHICH WOULD BE INVOLVED IN THE PROPOSED ACTION SHOULD IT BE IMPLEMENTED INTRODUCTION 55 ALTERNATIVE PLAN 1 55 ALTERNATIVE PLAN 2 57 ALTERNATIVE PLAN 3 59 NON-STRUCTURAL COMBINATION 61 CONTINUATION OF EXISTING FLOOD PLAIN MANAGEMENT PROGRAM (The No-Project Alternative) SUMMARY * TABLE OF CONTENTS (cont'd) 9. Title Page COORDINATION, COMMENT AND RESPONSE 69 9.01 PUBLIC PARTICIPATION 69 9. 02 GOVERNMENT AGENCIES 70 9.03 CITIZEN GROUPS 90 9.04 UNRESOLVED CONFLICTS 97 April 17, 197 5 Public Meeting Attendance 98 Letters of Comment BIBLIOGRAPHY PLATES 1. GENERAL LOCATION MAP 2. PROPOSED PLAN OF PROTECTION 3. PROPOSED RECREATION AND MITIGATION PLAN, SYLVAN SLOUGH 4. PROPOSED RECREATION AND MITIGATION PLAN, 52ND to 55TH STREET 5. LAND USE - MOLINE FLOOD PLAIN 6. REDEVELOPMENT AREA AND PROPOSED RECREATION PLAN 7. PLAN OF IMPROVEMENT 8. FLOOD PROTECTION ALTERNATIVES 9. PROJECT REACHES AND FLOOD ELEVATIONS 10. SUMMARY OF IMPACTS FOR EACH ALTERNATIVE APPENDIX A - - GLOSSARY OF TERMS A-l APPENDIX B - - LIST OF SPECIES B-l APPENDIX C--SUMMARY ARCHAEOLOGICAL REPORT C-l ECONOMIC DATA SHEET * < 1.01 INTRODUCTION 1.011 The Moline flood protection project is located in Rock Island County, Illinois, totally within the Moline city limits (See Plate 1). Situated in central western Illinois, Moline is the 19th largest city in the State with a 1970 population of about 46,000. The area of the City is 11.2 square miles , which includes extensive industrial, commercial and residential development. The heaviest concentration of industrial activity is along the Mississippi River where production of the farm, heating and air conditioning, machine tool and elevator equip¬ ment dominates the economic activity. 1.012 Moline is one of the five "Quad Cities"; East Moline and Rock Island, Illinois and Davenport and Bettendorf, Iowa make up the remaining metropolitan region. The City is bounded by the Mississippi River on the north, the Rock River on the south, Rock Island on the west, and East Moline on the east. 1.013 The Mississippi frequently overflows its banks at Moline, causing severe flood damage to industrial, commercial, resi¬ dential and recreational development. The flood of record in Moline occurred in 1965, and caused approximately $2, 000, 000 (1965 dollars) damage. The 1965 flood has a frequency of a 43-yea flood, that is, a flood which could occur every 43 years on the average over a long period of time. More recent floods in 1969 (an 11-year flood) and 1973 (a nine-year flood) caused an esti¬ mated $549, 000 and $165,000 damage respectively, as well as significant problems to the riverfront community. 1. 014 The Mississippi River flood plain in the City of Moline extends along the entire length of the City's northern boundary-- a total length of four miles. The flood plain is defined by the Standard Project Flood (SPF), the flood that may be expected from the most severe combination of meteorological and hydro- logical conditions that are considered reasonably characteristic of the geographical area in which the drainage basin is located, excluding extremely rare combinations. It is not practicable to assign a frequency to the Standard Project Flood. The occurance of such a flood would be an extremely rare event although it could occur in any year. The total area of the Moline flood plain is approximately 532 acres. 1.015 For purposes of study and discussion, the flood plain was divided into three units, or "reaches". The western section, Reach A, extends from First Street to 34th Street; Reach B continues from 34th Street to 48th Street; Reach C refers to the area from 48th to 55th Street (See Plate 1). Each unit was tested to determine its economic feasibility and social desira¬ bility. Structural protection in Reach A and Reach C was deter¬ mined to be economically justified and compatible with commu¬ nity goals in the form of levees and floodwalls. No Federally- supported construction is proposed for Reach B. 1.016 The flood damage abatement measures proposed for Moline would provide protection from Mississippi River over¬ flows through a system of levees and floodwalls to the 200-year level; that is, against floods with a frequency of once every 200 years. In addition to its economic justification, this level was selected to coincide with similar protection levels existing or under construction for neighboring jurisdictions. 1.02 REACH A 1.021 The propos ed project would protect the 26 industrial, 135 commercial, eight public and 47 residential structures within a 330 acre area in Reach A. In this reach, the riverfront is pri¬ marily heavy industry; a concentration of commercial use occurs farther inland. 1.022 The earthen levees proposed for this portion of the river¬ front would generally be between eight and 13 f eet high-- aver aging about ten--and between 60 to 90 feet from toe to toe; the crest would be 10 feet wide. On the river side, the levee would side slope at an angle of IV:3H; on the land side, the slope would be IV:4H. The concrete walls would be of three types: (a)T, (b)_I and (c) precast tie-off . The T-wall would be used where the height above ground would be greater than nine and one-half feet; I-walls, Tor heights less than nine and one-half feet; and the nrecast walls for heights less than three feet and used to tie off into high ground. 1.023 Flood protection for Reach A begins just west of First Street near the sewage treatment plant (Plate 2). Tied-off mto high ground near the Moline Boundary, a precast concrete flood- wall would extend about 300 feet midway to First Street where it would tie into a levee. The levee would extend 600 feet to Second - 2 - Street where a T-wall would begin and extend to the Iowa-Illinois hydroelectric plant. An I-wall would extend from this point to the Arsenal Bridge. From Arsenal Bridge, a one-half mile long levee would extend about 250 feet into the water to the Memorial Bridge in order to accommodate the City's redevelop¬ ment plan (Plate 6). At Memorial Bridge, a levee would con¬ tinue to the existing Moline Consumers loading dock, interrupted by a 300-foot T-wall at 21st Street. A dockwall would proceed east from the loading dock to about 26th Street, where it would tie into a floodwall running generally east-west, but including several minor turns needed to accommodate the American Air Filter parking lot. At 28th Street the flood protection would cross River Drive by means of a gate and tie into a levee v/hich would extend southward 400 feet to the railroad tracks. Finally, the levee would run eastward 1,100 feet to the Deere Technical Center; it would then tie into a 500-foot-I-wall extending to 34th Street. At 34th Street, the floodwall would end; during emergency conditions, a sandbag closure would be placed south¬ ward 250 feet along 34th Street in order to tie the protection into high ground. 1.024 In addition to the protection along the Moline riverfront, the existing levee along Sylvan Island would be strengthened and raised, and appropriate structural protection undertaken in the Iowa-Illinois Gas and Electric Company hydroelectric plant, and in the Arsenal Power Plant. This proposed action allows a lower level of protection along the Moline shore downstream of the hy¬ droelectric plant. It would also insure the integrity of the navi¬ gation pool for the Mississippi River. i 1.025 Storm water pumping stations vould be located at Second Street, about 18th Street and 28th Street. The Second Street station would pump 13 5,000 gallons per minute (G.P.M.); the 18th Street station would handle 65, 000 G. P. M. ; and the 28th Street station would pump 55, 000 G. P. M. 1.03 REACH C 1.03,1 Structural protection for Reach C was also determined to be environmentally feasible and socially desirable. The total project would be made up of structural protection in both Reaches A and C. - 3 - 1.032 The proposed modifications would protect an additional seven industrial, 22 commercial and 62 residential structures. Two structures along the river in Reach C would not be included in the protection--the Quad City Marina, and the Captain's Table Restaurant. The marina could not be protected and still provide river access; the Captain's Table is not included because of the proximity to the marina. The additional area to be protected would be about 60 acres. The riverfront in this area has several industrial establishments along the eastern half of the reach and the Quad-City Marina and recreation lands are located on the west. Commercial and residential structures occupy the inner area on the south side of the railroad tracks. Levee and flood- wall design would be similar to that described for Reach A. 1. 033 Specifically, the levee along the East Moline riverfront, which is part of the East Moline flood protection project, would be extended west along the riverfront to about 52nd Street. At 51st Street, the protection would cross to the south side of River Drive and the Davenport, Rock Island and North Western Railroad and Chicago, Burlington and Quincy Railroad tracks. A floodwall would be constructed along the north side of the Chicago, Rock Island & Pacific Railroad tracks where the line of protection crosses to the south side of these tracks. West of 52nd Street, a levee would follow the south side of the railroad embankment to 48th Street, which would be raised to the 200-year flood level and a sandbag closure provided to high ground. The selected plan thus locates the flood protection so as not to interfere with the boat harbor facilities along River Drive between 48th and 52nd Streets. The D. R. I. &N.W.RR. , the C. B. &Q. RR, and the C. R. I. &P. RR tracks. River Drive and the intersection of 48th Street and Second Avenue would be raised to the design flood elevation. Sandbag closures would provide freeboard protection. 1.034 A pumping station would be required at about 49th Street which would handle 6, 000 gallons of water per minute. An excavated 1. 5 acres ponding area would also be required adjacent to the pumping station. 1.04 MITIGATION 1.041 Provisions have been made in the project for mitigation of impacts to existing recreational facilities at both the upstream and downstream ends of the proposed project. A small park is planned for the area at the extreme western end of the project. - 4 - along Sylvan Slough, between the Rock Island border and Second Street. There, construction would include a small park which would include parking area, fishing docks, and footpaths (see Plate 3). Continued accessibility of the area to fishermen would be assured. Between 52nd and 55th Streets, the protection plan calls for provision of replacement land, landscaping and facilities, including fishing docks, and walking paths on the river side of the levee (see Plate 4). 1.042 An additional mitigation measure is the plan for the shoreline improvement at 16th Street, proposed as part of the flood protection project and designed to coincide with the currently planned downtown redevelopment programs. 1.05 AUTHORIZING DOCUMENT 1.051 The project for local flood protection at Moline, Illinois, was authorized in June 1972 under provisions of Section 201 of the Flood Control Act of 1965 substantially in accordance with the recommendations of the Secretary of the Army and the Chief of Engineers in House Document 91-162. House Document No. 92-161 was prepared in partial compliance with two resolutions adopted September 10, 1944 by the Committee on Flood Control, U, S, House of Representatives, which reads as follows: Resolved by the Committee on Flood Control, House of Representatives , That the Board of Engineers for Rivers and Harbors created under Section 3 of the River and Harbor Act approved June 13, 1902, be, and is hereby requested to review the report on the Mississippi River between Coon Rapids Dam, and the mouth of the Ohio River, printed in House Docu¬ ment Numbered 669, Seventy-sixth Congress, third session, with a view to determining the advisability of providing flood protection along the Mississippi River above the mouth of the Missouri River. The second resolution is similar, reading: Resolved by the Committee on Flood Control, House of Representatives, That the Board of Engineers for Rivers and Harbors created under Section 3 of the River and Harbor Act approved June 13, 1902, be, and is hereby requested to review the report on the - 5 - Mississippi River between Coon Rapids Dam, Minnesota, and the mouth of the Ohio River, submitted in House Document Numbered 669, Seventy-sixth Congress, third session, with a view to determining the advisability of providing additional flood protection along the Mississippi River above the mouth of the Missouri River. Further, Section 208 of FMblic Law 89-298, approved October 27, 1965, reads: The Secretary of the Army is hereby authorized and directed to cause surveys for flood control and allied purposes***in drainage areas***which include the localities specifically named in this section***Moline, Illinois***. 1. 06 LAND ACQUISITION AND PROJECT COSTS 1.061 The following is the acreage required for the flood protection project and the anticipated costs: Acres Costs Reach A Reach C Proposed Plan 16. 7 10. 1 26. 8 $ 1,391 , 000 417 , 000 $ 1,808 , 000 1.062 Total project construction costs include: Lands and Damages Relocations Construction Mitigation and Beautification $ 1,8 08,000 503,000 12,660,000 640,000 Total Contract Cost $ 15,611,000 Other Costs: Engineering and Design Super vis ion / Administration Gross First Costs 1.063 Of the total cost, $1 5,790, 000 will be paid from Federal funds; $1, 8 81, 000 will be borne by the City of Moline. (For additional details, see Section 6. ) $ 1, 236,5 00 823.5 0° $17,671,000 - 6 - 1.064 These costs are the total financial costs of the project and do not reflect an anticipated savings to the flood protection project for East Moline now in a detailed planning stage by the Rock Island District. By continuing the line of protection from East Moline, a costly and awkward tie-off system along 55th Street would be eliminated. This represents a net saving of $748,000. This savings is reflected in the economic costs of the Moline Project which is used to compute the benefit-cost ratio. 1.07 BENEFIT-COST ANALYSIS 1.071 The economic feasibility of a flood control project is the assessment of the dollar costs of a project compared to the dollar benefits which would accrue if the project were imple¬ mented. In determining the benefit-cost ratio for a project, annual project costs are derived and then compared to the value of annual flood damage reduction. The annual cost is calculated by amortizing initial project costs --cons truction, acquisition, financing, and operation/maintenance costs--over the life of the project. Calculations of flood damage reductions or flood costs reflect the following elements: 1. Physical damage to structures and their contents; 2. Flood-fighting and evacuation costs; 3. Net wage and salary losses as a result of flooding; 4. Net loss of income or production due to flooding; and 5. Clean-up costs following a flood. 1.072 The derivation of the annual value of flood damage gives dollar values to the above costs and calibrates them based on the following: the frequency of flooding, the height of the flow, the previous record floods , and the extent of the reach of ex¬ pected floods . 1.073 In addition to calculating flood damage reduction benefits for existing conditions, benefits are also derived for future conditions, based on the assumption that if protection were pro¬ vided more intensive use of the land would result and benefits would be increased. Future benefits estimated increases for industry, commerce, and housing activity. - 7 - 1.074 These calculations are summarized in the following formula: Existing Average Annual Net Future Average Annual Flood Damage + Reduction Other + Flood Damage Benefits Reduction Benefit-Cost Ratio Annual Cost of Project 1.075 Applying this formula to the project under discussion, a favorable ratio of 1.3 has been calculated for Reach A pro¬ jected to the 200-year flood level; Reach C has a ratio of 0.73, and the ratio for the proposed project as a whole (Reaches A and C) is 1.2. - 8 - 2.01 AQUATIC ENVIRONMENT 2.011 Hydrologic Features 2.0111 In the Quad Cities region the Mississippi River is a dominant feature of the landscape. The river here is part of Pool Number 15, one of a series of navigation "steps" construc¬ ted to maintain water levels that permit commercial shipping. The locks and dam which create Pool 15 are one and one-half miles downstream of the western project boundary. The Rock Island Arsenal and the Iowa-Illinois Gas and Electric Company hydroelectric dams on Sylvan Slough and an existing levee on the upstream end of Sylvan Island form a part of the Lock and Dam 15 system between the Iowa and Illinois shore. Along much of the Moline project area, the river averages 2,000 feet in width, has a maximum depth of 20 feet, and discharges a mean daily flow of 48, 100 c.f. s. (cubic feet per second). At this point, the regional basin area drained by the Upper Mississippi River is 88, 400 square miles and includes major parts of Minnesota, Wisconsin, Iowa and Illinois. 2.0112 The river bed in this region consists of sand and silt overlying bedrock limestone which results in a more stable bed pattern. The river's pliant sediment deposits of sand, silt and clays, however, are in a constant state of flux, first settling out, then being picked up again by the river currents. The total sediments in suspension indicate that the sediment load passing the project area is approximately 13 million tons per year. Erosion from agricultural fields, which occupy 60 percent of the basin land, is probably the major source for the sediment load. 2.0113 In the project area, no major tributaries or streams flow into the Mississippi, although two small open ditches, at 33rd and 47th Streets, enter the river. Due to the highly urbanized character of the project area, most of the surface runoff reaches the river via storm sewers. Since 1965, the storm and sanitary sewer systems for Moline have been separated, thereby eliminating pollution from direct raw sewage discharge to the Mississippi River during heavy rams. Twenty storm sewer outfalls and approximately 24 other spill¬ ways, serving industries along the river, exist on the project area ’riverfront. Sewage from the district is carried by the sanitary sewer system to the North Slope treatment plant, located west of First Street, Moline. - 9 - 2.012 Water Quality and Use 2. 0121 The water quality of the Mississippi River is generally considered good, and meets Illinois and Iowa water quality stan¬ dards. The river serves not only as a water source for numerous communities in the region, including Moline, but also, primarily because of its large volume, receives and assimilates municipal and industrial wastes. Water quality data, provided by the Illinois Environmental Protection Agency and summarized for the period 1971 to 1973, demonstrate the following trends: water temperature and pH remained within acceptable State standards and were within the ranges tolerable by aquatic organisms; dissolved oxygen levels followed a typical pattern of declining values during summer and approached State limits during later summer, but values increased with the onset of cold weather; nitrogen levels remained within the standards, but tended to increase; and phosphorous levels of all samples exceeded the acceptable standards, probably because of the intensive agricultural practices in the drainage basin. The high phosphorous values and adequate nitrogen levels have produced occasional unnatural growth of algae. Fecal coliform counts which indicate pollution from human wastes, exhibited a marked increase during the sampling period, with most of the latter samples exceeding Illinois limits. Observable heavy metal concentrations were infrequent. Copper and lead concentrations were both found to exceed acceptable standards once, and mercury approached the acceptable limits in a sample. 2. 0122 Moline and East Moline have primary sewage treat¬ ment plants (located at miles 484. 5 and 490. 3) which impact the river’s water quality in the project area. These two plants contribute over six mgd (million gallons per day) of effluent to the river. In addition to this effluent and the storm sewer spillways, a number of other industrial outfalls, above and below the study site, release wastewater into the river. Secondary treatment is now envisioned in the Moline Water Treatment Plant's expansion plans. Additional facilities are expected to be opera¬ tional by 1985. 2.0123 Moline obtains its entire domestic water supply from the Mississippi River, consuming approximately 6.6 mgd. Other cities and communities in the area including Davenport, Rock Island, East Moline and the Rock Island Arsenal also depend on the river for potable water supplies. The total daily draw for municipal supplies approaches 50 mgd. Raw river water under¬ goes extensive physical and chemical purification treatments before it is stored or distributed for use. As a result of the high fecal coliform values, other uses of the river should be limited to passive, non-contact uses such as fishing and boating. - 10 - 2. 013 Biological Features 2. 0131 No known detailed ecological studies on the benthic macro invertebrates, riverine plankton or rooted aquatic plants have been conducted in Pool 15. Populations of the mayfly nymph, Hexagenia , were studied extensively in Pool 19 (approximately 100 miles downstream, Keokuk, Iowa) between 1959 and 1963. ^ Mayfly populations in the pool ranged from 3.5 to 23.6 billion over the five-year period (ranging from less than 100 to more than 500 per square meter) and indicated an alter¬ native year cycle of abundance. Since the chief habitat for the mayfly is broad silt-mud bottoms, it is thought that their popu¬ lations may have increased due to the lock and dam inpound- ments , which increased the area of silt bottoms along the river. However, Hexagenia is sensitive to pollution and is evidently replaced by midge larvae ( Tendipe s) and oligochaetes under conditions of low dissolved oxygen concentration. 2. 0132 Because mud-silt bottoms are found along the Moline project area, particularly in the side channel which passes south of Arsenal Island, and because the water quality of the river has not been greatly damaged by gross pollution, com¬ parable populations of this mayfly probably exist in Pool 15. Oligochaetes, midge larvae, and other aquatic insect larvae probably also live in the Mississippi River along the project area. Although there is little commercial exploitation, six to eight species of clams also exist in the river where appropriate substrates are found. These organisms, planktonic species, and aquatic plants are all important in the aquatic food web. Insect larvae, in particular, are a prime source of food for many fish. A diverse benthic community also indicates a healthy river ecosystem. In the case of Pool 15 ■, which is known to receive polluted effluents, presence of these organisms demonstrates that the river is able to absorb and assimilate these wastes thus naturally purifying the water without undue environmental stress. 2.0133 Despite its uniform appearance, a variety of habitats are found in the Mississippi River in the project area, ranging from deep swift water to quiet, silt-bottomed pools. Because of this variety, many fish species live in Pool 15. These species are listed in Appendix B and include fish collected in recent 1-K, D. Carlander, et. al . 1967. -11- Illinois State Department of Conservation surveys (1971, 1973 and 1974) and fish which have been reported in scientific litera¬ ture for this portion of the river. 2. 0134 Although most of the fish swim freely among the habitat- types, some generalizations can be drawn about habitat pre¬ ferences. In the middle portions of the main channel, the river is predominantly deep, swift and firm bottomed, and attracts walleye, sauger, mooneye, carpsucker, channel catfish and freshwater drum. From 34th to 48th Streets, a lateral dike is submerged in the middle of the river and is a congregating place for catfish, especially during periods of low flows. 2.0135 Backwater areas, a second major riverine habitat, are characterized by slow-moving, warm, silty water with soft, silty bottoms. Although they may occasionally be deep (around wing dams, boat harbors), they are often shallow and near shore. The project area shoreline and much of the side channel which skirts south of Arsenal Island represents this kind of habitat. Such areas are prime habitat for bass, perch, shad, bowfin, sunfish and gar. Carp, bluegill, crappie, and buffalo favor particularly quiet areas with mud bottoms. 2. 0136 The tailrace of Sylvan Slough represents the third major aquatic habitat in the project area. The water flowing through the slough is warm, clear and flows rapidly over a hard rubble bottom. Fish often found in this habitat include perch, bowfin, paddlefish, carpsuckers, flathead catfish, and bass. Two im¬ portant gamefish, the walleye and sauger, are thought to spawn in this favorable habitat. 2. 0137 Sport fishing is an important recreational use on the waterfront. The primary sport fish are paddlefish, channel catfish, white bass, bluegill, largemouth bass, crappie, sauger, walleye and freshwater drum. According to the Illinois Depart¬ ment of Conservation, 10, 000 sport fishermen used the area in in 1974. Because the river below Sylvan Island (at the con¬ fluence of the slough tailrace and the side channel) offers the major fish habitats in close proximity, it is apparently a prin¬ cipal gathering place for most of the fish mentioned. Conse¬ quently, it is an area that is intensively fished from both shore and boats. The banks of the Sylvan Slough tailrace are also extensively fished. Another favorite fishing spot in the project area is along the shoreline from 34th Street to the eastern project boundary. -12- 2.0138 Commercial fishing is insignificant, amounting to only a few thousand dollars per year. The major commercial species are carp, buffalo, freshwater drum and channel catfish. According to Upper Mississippi River Conservation Committee, the Quad Cities region of the Mississippi River was worked by 47 fishermen in 1970 with a total market value of $4,731. 2. 02 TERRESTRIAL ENVIRONMENT 2. 021 Physical Features 2.0211 Climatology The Quad Cities region has a continental climate, characterized by warm summers and cold winters with wide temperature variances. According to data gathered by the National Weather Service at the Moline Airport, the mean monthly temperature is 50. 1°F. January, the coldest month, has a mean temperature of 22. 6°F; while July, the warmest month, has a mean temperature of 75.6°F. The winter period begins in mid-October and lasts through late April. The frost- free growing season is approximately 190 days long. Relative humidity is normally highest, 81 percent, in the morning hours and drops to 63 percent in the late afternoon. Precipitation varies both seasonally and yearly, but is fairly evenly distributed throughout the 12-month period. Variations from the normal annual precipitation of 32.79 inches range from a minimum of 20. 2 inches to a maximum of 52 inches. The period of greatest rainfall is from April through September with June receiving the greatest rainfall, 4.37 inches. Most of the summer pre¬ cipitation occurs in the form of short duration showers and thunderstorms. Locally intense storms have occurred in the past, however, dropping as much as 6.29 inches in 24 hours as in September 1961. Winter precipitation varies considerably, but-tends to average 27.7 inches of snow and sleet yearly. Snow covers exceeding 12 inches are uncommon. 2.0212 Air Quality Air quality of the Quad Cities region, based on data collected in downtown Rock Island, has been monitored by the Regional Air Pollution Control Agency since 1971. In general, pollutant levels are low and air quality is high. According to the Oak Ridge Air Quality Index, which ranks air quality as excellent, good, fair, poor, or dangerous, Moline's air quality has been in the excellent category 55.4 percent of the days and "good" 43. 0 percent. No "poor" or "dangerous" ratings have ever been recorded. -13- 2.0213 Geomorphology 2.02131 The Mississippi floodplain area, including Sylvan Island is located between River Miles 1 484.5 and 488.5. Terrain of the surrounding region consists principally of rolling hills with moderate relief. Topography in the urbanized floodplain of the project area slopes gently northward to the river with elevations ranging from 600 feet (m. s. 1. ) at the bas e of a s eries of bluffs one-half mile from the river to 560 feet at the riverbank. Ele¬ vations within the floodway design area range between 560 and 57 0 feet. On Sylvan Island, the land form slopes gently west and south, with elevations ranging from 580 to 560 feet. 2. 02132 The geology of the floodplain, as reflected in the upper¬ most stratigraphic series, consists of a Devonian limestone (Wapsipinicon Formation) overlain by an alluvium deposited by the Mississippi River. The alluvium is a mixture of sand, silt clay and organic material and has an average thickness of 20 feet. Occasionally, erosional remnants of loess and glacial till, which have been washed down the bluffs, can be found between the limestone and alluvium. These geologic features do not constitute economically exploitable mineral resources; limestone was formerly quarried on Sylvan Island where it rises close to the ground surface, east of Riverside Park, and in Rock Island, but urban expansion has made it impossible to continue these operations; sand and gravel deposits are not present in quantities sufficient to justify extraction. 2.02133 Because of the urbanization in the floodplain, the allu¬ vial silt-clay soils have been generally disturbed and are diffi¬ cult to characterize. In many places, earth fill has been brought into the area. Uncontrolled dumping of foreign soil material, concrete chunks, and other debris occurs along much of the shoreline. In general, however, the soil conditions present few restrictions on developmental land uses. 2. 022 Biological Features 2.0221 Natural Vegetation 2.02211 For the terrestrial environment, the presence and extent of prime natural vegetation is the single-most important indicator of natural quality--natural ecosystem functioning. 1 - Miles above the confluence of the Mississippi and Ohio Rivers. - 14 - wildlife habitat, and outdoor esthetic-recreational benefits. Because the project area is committed to urban land uses, little natural vegetation is expected. A Comprehensive Plan Report for Moline (1966), which reported on the physical resources of the city region, demonstrated that the only signi¬ ficant natural vegetation existing in the project area occurs on Sylvan Island. Although no significant, high quality vegetation occurs along the remaining Moline shoreline, some minor areas of vegetation can be found. These areas are subsequently described. 2. 02212 Since Sylvan Island has a history of disturbance, most of the vegetation on the island is secondary growth. After it was created in 1871 by excavation of the tailrace, it has been the site of power production facilities, a steel mill, a lime¬ stone quarry, and various recreational activities. On the western two-thirds of the island are large, high quality stands of successional and mature bottom land deciduous forest. The most common trees are mulberry, sumac, cottonwood, and basswood. Catalpa, box elder, hackberry, chokecherry and locusts are also found. On the eastern third of the island, the land was cleared during steel mill operations. When the mill closed in 1956, vegetation began to re-establish the ground surface. At present, a brushy vegetation composed of a wide variety of grasses, shrubs, and sapling deciduous trees is found. Left to its own ecological functioning, this secondary growth will eventually resemble the mature tree stands to the west. Because of the natural surroundings on Sylvan Island, it provides the best wildlife habitat in the project area and offers excellent open space for recreational pursuits. It is a significant natural resource for the City of Moline and its characteristics should be preserved. 2. 02213 A narrow strip of successional riverside vegetation exis'ts from First to 16th Streets and is composed of small to medium sized trees, shrubs, and weedy undergrowth. The dominant trees are black locust, box-elder, willow, elm and mulberry, while the shrubs are mostly wild grape vines, elder¬ berry, poison ivy, and Virginia creeper. Occasionally, a large cottonwood or box-elder is found. Although this vegetation is of low quality, it does have considerable esthetic value because it forms a screen, separating the industrial area from the Mississippi River shoreline. -15- 2. 02214 From 16th to 23rd Streets , a small, one and a half acre marsh is found along the shoreline. The marsh consists of a relatively broad mudflat bordering the river, a wide band of bulrushes ( Scirpus) and associated wetland plant species, and a narrow ring of cattails and other hydrophytic brushy species. A narrow strip of deciduous vegetation similar to that previously described, is then found on the shore bank. The marsh itself is not in an optimal environmental setting. Two storm sewer outfalls flow into the river along this stretch, and contribute oils, de-icing salt runoff, cigarette butts, and other trash to the river's edge. Evidently, a considerable amount of illegal dumping occurs at the locale--concrete chips, asphalt, old tires, and other debris fringe the marsh. In spite of this misuse, the marsh provides excellent wildlife habitat in the urban setting and, because of its intrinsic ecological functions, performs other useful services, including biological productivity, oxygen production and pollution filtration. 2.02215 From 20th to 34th Streets, theproject area is dominated by industrial development and displays little natural vegetation. The banks of the Mississippi River are barren except for grassy species which help stabilize the shoreline, numerous weeds (ragweed, sumac, wild grape) which are invading the edges of vacant lots and unpaved parking areas, and a few scattered trees (elm, cottonwood, willow). Many of the industries in the project area have landscaped part of their grounds with Kentucky bluegrass lawns and exotic horticultural plantings (pine, yew, juniper, other deciduous shrubs). These plantings are attractive but offer nothing botanically distinctive and little wildlife habitat. 2.02216 In the rest of the project area, natural vegetation is minimal. The Ben Butterworth Park, which parallels the river much of this remaining distance, contains trimmed lawns, some horticultural shrubs, and a few large trees (cottonwood, burr oak). The residential area, south of River Drive, although mostly a "man-made" vegetational area, offers good cover for urban wildlife. From 48th to 55th Streets, the shoreline is used for a boat harbor, industrial storage, and miscellaneous dumping. Again, a few large trees (elm, box-elder, cottonwood, willow) are found dispersed among weedy pioneers (ragweed, milkweed, wild grape). 2. 02217 One botanically unique feature is found near the project area between 34th and 48th Streets along the railroad right-of-way. Here, remnant patches of the native wet prairie, with bluestem, -16- switchgrass, and prairie sedges, are found between the sets of railroad tracks. Unfortunately, the prairie remnants have been disturbed in some areas and have been invaded by weed species. Nonetheless, preservation of these remnant wet prairies is warranted because of their scientific, historical and esthetic values. 2.0222 Wildlife 2. 02221 The kinds of animals to be found in the Moline project area are dependent on the quality and quantity of habitat--natural vegeta- tion--of the region. Because much of the area is botanically charac¬ terized by disturbed, unstable secondary growth and common urban plant species, the animals found in the area are for the most part adapted to these disturbed urban settings and are common to human environments. However, the shoreline inter¬ face with the Mississippi River introduces a substantial amount of diversity into the wildlife component. Consequently, a number of animal species that are atypical of urban environments can be found in or near the project area. 2.02222 Well over 200 bird species, including breeding birds and migratory visitors, have been recorded in the Quad City region in recent years. Each bird species exists in a certain preferred habitat, such as a swamp, upland woods area, or an open field, but may occasionally use one or two habitats for feeding, breeding, or other behavioral activities. Because the Moline riverfront offers only a few of the habitat-types available throughout the region, the number of bird species that may be found in the project area is considerably less than the regional total. 2. 02223 The two major habitats available in the project area are the Mississippi River and the river shoreline. The latter is actually a medley of habitats, including urban areas, brushy patches, mudflats, and a marsh. Other habitats in the surrounding area,but peripheral to the project, include bottomland woods and second growth brush patches on Sylvan Island; bottom and upland woods and fields on Arsenal Island; and urban habitats in Moline, particularly in residential areas and parks. 2. 02224 The most obvious bird habitat in the Moline project area is the Mississippi River, which is used by a great variety of aquatic - dependent birds as a feeding and resting habitat. Because it is the heart of a major migratory flyway, many of -17- the birds recorded for the river habitat may only be seen a few weeks in a year. The waterfowl observed for the river include geese, surface-feeding ducks such as the mallard, teals, and wig eon, bay ducks, mergansers, and occasionally sea ducks, such as eiders or scoters. The river also plays host to members of the heron family, many of which breed in the nearby swamps, undisturbed marshes, or bayous. Infrequently, fairly exotic species may be found. For instance, loons, grebes, pelicans, and cormorants have all been sighted along the river. A number of tern and gull species (the herring and ring-billed gulls are common) can be seen during the proper migratory periods. Other birds, not as closely associated with water are also observed over the Mississippi River. A number of swallow species can often be seen feeding on flying insects attracted to the water. Raptorial birds occasionally sighted along the river are notable and include the osprey and the bald eagle. (This is probably the northern subspecies and not the endangered southern subspecies of the bald eagle. ) The bald eagle is irregularly seen flying low along the river during the winter months. Although a keen observer may sight one from the Moline shoreline, the bald eagle is more likely to be found along the river away from the urban centers, as are most of the other birds mentioned. 2.02225 The shoreline of the Mississippi River in the Moline project reach provides additional bird habitat. Because of the variety of habitats found along the riverfront, many different bird species can be observed. Although the industrial en¬ croachment on this narrow strip reduces the quality of the wildlife habitat along the Moline shoreline, the Sylvan Island shores are a highly favorable bird habitat--many passerine (song) birds are found, in season, in the shrub-brush strip from the western project boundary to Arsenal Bridge. Some, particularly year-round residents, may nest in this area. Typical birds which can be observed in this area include the blue jay, black-capped chickadee, goldfinch, and song sparrow. Wrens, vireos, warblers, and blackbirds may also be observed in this area. The one and one-half acre marsh located between the Arsenal and Memorial Bridges has a brush-sapling fringe and provides habitat for many of these same birds. In addition, the mudflat area of the marsh is a feeding area for killdeer, sandpipers, and other related shorebirds. A small flock of semi-tame mallards regularly feeds at the marsh but it is likely that someone from the vicinity throws out corn and other grains to attract the ducks. Much of the shoreline east of Memorial Bridge is industrialized, barren, or disturbed in other ways -18- by man's activities. A few tree clumps, or brush patches offer low quality habitat along the remaining project area shor eline. 2. 02226 In the urban sections of the project area, birds such as the robin, starling, rock dove, house sparrow, and cardinal, all of which are commonly associated with man, can be observed 2.02227 Appendix B presents a listing of the probable bird species that are regularly found in the project area and may not include all of the birds which may be seen in the project vicinity. It is presented to demonstrate the diversity of birds in the project region. For a complete listing of the birds in the Quad City region, see Fawks and Peterson, 1961. 2. 02228 The mammalian fauna in the Moline project area, as the avi-fauna, is limited by the availability of quality habitat. Since mammals are more restricted than birds in urban areas because of less mobility and certain niche requirements, the mammals along the project reach are small and generally well-adapted to man's presence. Although a number of mammal are potentially present or were present prior to urban develop¬ ment in Moline (see Hoffmeister and Mohr, 1972 or Augustana Research Foundation, 1973), the fauna is limited to about ten species. The most common of these species include the cottontail, muskrat, meadow vole, and raccoon. Limited trapping information, sight and signs indicate the presence of these species. Although no population data are available, it is assumed, based on habitat characteristics, that their respective populations are small. It is possible that some of them may live on Sylvan or Arsenal Island and occasionally visit other locales in the project area to feed. The probable mammals in the project area are listed in Appendix C. 2.03 HUMAN RESOURCES 2.031 Population and Distribution 2.0311 The 1970 population of the Quad Cities area was approxi mately 310, 000; Moline accounted for 15 percent of this total, with 46,000 residents. The FPA included parts of three census tracts, and totals approximately 7 00 residents. 2.0312 Recent population growth projections prepared by the Bi-State Metropolitan Planning Commission indicate that the Quad Cities area is expected to gain 110, 000 residents--an increase in total population of just under 36 percent--by the year 1995. No figures are available for the FPA alone, but since the floodplain is already developed, such substantial growth is unlikely in the study area. 2. 032 Population Characteristics 2. 0321 In the metropolitan Quad Cities area, population density is highest in the inner cities of Davenport, Rock Island and Moline; of the three, Moline is the least densely developed in residential uses; only a few tracts have in excess of ten persons per net acre. With the FPA, density is low, because of the large preponderance of non-residential land uses. 2. 0322 Although the distribution of school-age children through¬ out the metropolitan area and the non-FPA of Moline is relatively consistent, the number of school-age children residing in the FPA is well below average. Rather, a concentra¬ tion of elderly persons (65 and over) is found in that area. Throughout the metropolitan area, and in Moline as a whole, the elderly account for only nine percent of the total population. In the Flood Project Area, however, they account for approxi¬ mately 18 percent. If the population between 62 and 65 is added, older persons account for 23 percent of the FPA residents, as opposed to 14 percent for the city. 2. 0323 The black population in the Quad Cities is very small, comprising less than four percent of the total. The City of Moline has a somewhat larger percentage--approximately ten per cent--while the FPA has only two percent black residents. In contrast, the number of foreign-born residents is quite high. The predominant ethnic groups residing in the FPA are Mexican and Swedish populations. They comprise 48.5 percent and 12.9 respectively, within the three project-related census tracts. Comparable figures are not available for Quad Cities as a whole; in Rock Island County, however, only 10. 3 percent of the population is classified as foreign-born, well below the figures cited for the FPA. 2. 033 Major Skills and Occupations 2. 0331 The labor force of the metropolitan area is concentrated in five broad skill areas--operative workers (20 percent); clerical workers (15 percent); craftsmen and foremen (15 percent); service workers (11 percent); professional and technical workers (10 percent). The operative workers compose the important -20- human resource base for the massive manufacturing operations which provide nearly 40 percent of all employment in the Quad Cities area. Second in importance as employment sources are retail trade establishments and the service industries, each providing about 15 percent. Agriculture and mining, trans¬ portation and public utilities, and government offices tie for distant third place, each providing about six percent. 2. 0332 Occupational patterns are somewhat changed when the FPA census tracts are considered separately. Proportionately, fewer workers residing in the FPA hold professional, technical, managerial or administrative jobs. These jobs --g enerally considered white collar occupations--comprise about 40 percent of the metro area labor market, whereas only about 30 percent of the residents of the FPA hold jobs so classified. In contrast, the three FPA census tracts exceeded the metro area in terms of middle and upper blue collar jobs. Nearly half the area's work force is employed in skilled or semi-skilled manufacturing occupations, as against 30 percent for the Quad Cities as a whole. 2. 0333 Analysis of skills and occupations over the past 20 years indicates that increasing numbers of people in the Quad Cities are seeking and finding clerical, professional and technical, and service employment. While employment in almost all occupational and skill areas has expanded in the two decades analyzed, these three classifications have experienced the fastest growth. There are strong indications that these trends will continue, as economic functions and employment locations continue to shift. The effect of these trends on the FPA is unknown. The growth may permit FPA residents in¬ creased participation in professional and technical occupations. In any case, minimal negative impacts should occur, for the occupations of the preponderance of FPA residents--sales , clerical, craftsmen, foremen, and operative--is increasing, slowly in some cases, but very substantially in others. 2. 034 Educational Characteristics 2. 0341 While 55 percent of the residents of the Quad Cities area have at least a high school education, the median years of school is just over ten for residents of the FPA. Similarly, the secondary school drop-out rate in the FPA is 21 per cent--consi¬ derably higher than the ten percent rate for the metropolitan area as a whole. 2. 0342 Metro trends indicate a rising median education for the population. No figures are available for the FPA. 2. 04 LAND USE 2. 041 General 2.0411 Land uses were examined at three scales for this study. Data were collected for the Quad Cities (including Scott and Rock Island Counties and Colona Township in Henry County), for the City of Moline, and for statistical zones incorporating the flood project area (FPA). The last includes some areas outside of the FPA but is considered a representative sample for this study. 2.0412 Eight categories of land uses have been identified: . Low density residential (average three to four dwelling units per acre) . High density residential (average 10 to 15 dwelling units per acre) . Retail and wholesale . Services . Industrial-Manufacturing . Transportation, communications, utilities (including city streets and alleys) . Public facilities (including schools and muni¬ cipal structures) . Resource and vacant land (including parks, cultivated land, timber and mineral resources, and open space Plate 5 provides an illustration of land use in the FPA. Tables 2-1 and 2-2 present existing and forecasted acreage by land use in 1970 and 1995; these tables were compiled from data furnished by Bi-State Metropolitan Planning Commission. 2. 0413 Land use patterns in the FPA differ somewhat from the Quad Cities as a whole, and Moline itself. Historically, in¬ dustrial and commercial development has occurred on land ad¬ jacent to the Mississippi River in order to take advantag e of - 22 - I 00 0 *-H rO cd H Pi Q O O Z fr-i Q W H U W o w * 3 Q O £ 2 < O ^ z H in i—i X w w I—I H KH U Q < Id a CD c 0 O Vi 0) Oh 0 ) „ . 4J tJ £ 5 cd 2 u 2 «» 0 t> 00 00 00 r-4 in • • • • • • o- rH oo in co 00 co & CO ID U H in vO O' • • • • • • vO •H O- 4* 17 r- W « 0 Vi 0£ in C U • £ £ £ < § g CO n f — I hH rH >5 3 * co 4* in CO 4« rH £ 3 cd H-> 0 3 o • r-4 • 4« r-4 • • r-4 • 4< r-4 CD 0 U • H > u 0 w CTJ 4-> 0 rH vO t^- CO 0- r^. u •M • • • • • • -M o • • r-4 • 4< • • r-4 • 4* •H r-4 •rH £ Vi 4-» £ H-> CD Ol co ,£ 0 6£ 2j £ 00 00 o- CO CO CO ^ vJD in in CO NO 03 flj s, U ■U -rH C •-< o 5 3 g £ •S' 0 | * *5) •rH 4 -> • r< rH -4-* •rH J_. rt d H-> H-> ” ® a 2 ti a 2 £ •pH CD •rH C CD cd o o o in in in 0 0 Vi o- 0- r- O' co O' Oh td H O' o O' o O' O'- l 1 1 r—H r-4 r-4 p—i r-4 r-4 r-4 03 CO o o X u Vl co bfl co rt o - TJ co £ Vi CJ C •r-c I I rtj a CO 0 U *£3 .-h £ •§•3 Pi JS I I r* in co r- o co •<-< o £ o •»H r-4 co CO in vO CO • rH rH r-4 t—4 pQ • • • • • • £ 03 sO CO 03 v£> CO % T3 £ 0 3 0 •M cd H-> w t •rH ffl CD -»-> CD cd u 0 Vi O Ol in CO co CD u Vi £ O in 23 CM I 00 0 i—H X cd H W in P < W PS c p Q P < P ^ Q Q 2 W o H P U P W . n W g £ K I—I CL P a% P ^ in r-H O' CO X 00 0 s r- o** u ^ X o- O' »-H O' rH u S 00 O' 00 d ^ •k «k «k •k •k o ^ o oo CO CD CO ^ r-H 0 s •* — 0 > in o PS c • rH X & CO p o H oc i d d d cd • f-H d 2 4-> o cd vn CQ Li 0 CO cd 4 -i 0 PS 00 • X M bd u 4 -> 0 « QQ 0 U d 4 -» O d u 4 -> GQ 0 u cd a CQ X d cd ca d O rH d cd a) cu a •H O >k 4 -> 4-1 • rH • rH CQ CQ d d 0 0 TJ 03 »s_ X £ bo d d 5 6 cd d d e CQ 73 d cd 0 u d d o o U CQ O o X o l« CQ bo cd X d cd H CQ ►—i o o d o •rH CQ CO •H a a o O &o d •pH d d cd Pi d cd o a o u 4-> 0 0 -M cd W i •pH PQ i CO 4 -> CQ cd O 0 V/ H X! •k 0 «k Li n 0 • rH H-> • rH 0 • H HH • *h 4 -> cd r-H d O • H 4 -> cd X d r-H u cn Li c • H a CO XI cd d d • *H r-H o Ph X cd d d • H r-H o a 4 -> d 0 X 4 >> d 0 X o CL CQ i i U • H CO 0 X 0 s r-H • • a 2 P a 2 p • H CQ • rH CQ d cd r-H X d »-H a) n o o o X X X 0 0 Li d u V Li o- O' o- CO CO CO P 4 PS H P r- l-H d co CO co CO CO O' i 1 i i 1 0 r-H r-H rH rH r-H r-H r-H 00 CO m w 24 available energy and transporation. The Moline FPA is sub¬ stantially typical of this historical trend, with major industrial development, sited to take advantage of both the riverfront and the railroad lines there. A full 85 percent of Moline's industrial development is located there. However, other parts of the FPA are not so typical; a major portion of the river¬ front has now been devoted to park development--the Ben Butterworth Memorial Parkway--and residential development to the south. Unlike the overall Quad Cities area, where over 60 percent of the land remains in farming, the FPA has no cultivation. There is a large residential section within the flood plain which comprises 19 percent of its total land area. - 25 - 2. 042 Industry and Commerce 2.0421 Deere & Company is the largest single industrial user in the floodplain; its plow and planter works, mixed car warehouse, industrial equipment group and medical department are located there. Other major industrial operations include the Moline Consumers Company, Montgomery Elevator, Frank Foundries , American Air Filter, McLaughlin Auto Body and the Moline Tool Company. The presence of these industries in the FPA deter¬ mine much of its land use pattern while providing a solid eco¬ nomic base for Moline. 2.0422 At present, the Moline Consumers Company is the only commercial user of Mississippi River frontage for transporation. The Company receives and ships building materials from its plant in barges along the river. Electricity is generated by the Iowa-Illinois Gas and Electric Company at its power dam near Fourth Street. There is a marina near 51st Street which is utilized by the public and an extensive park system north of River Drive extending intermittently from 27th Street to the eastern city limits. 2.0423 Commercial outlets are generally found between 11th Street and 18th Street and between Third and Seventh Avenues in the FPA. This area is the City's central business district and comprises approximately seven percent of the land area within the floodplain. Other commercial operations are scattered throughout the FPA. 2. 0424 In Reach C of the floodplain mixed land uses include small industries, distribution outlets, commercial establishments, and single-family dwellings. 2.043 Transportation 2. 0431 The City of Moline is served by four rail lines--Chicago, Milwaukee; St. Paul and Pacific; Burlington Northern; Chicago, Rock Island and Pacific; and Davenport, Rock Island and North¬ western. All four have trackage in the FPA. 2. 0432 Ozark and United Airlines provide commercial airline service to the Quad Cities region. The Quad Cities Municipal Airport is located several miles from the FPA and will not be impacted by any change in the floodplain. 2.0433 U.S. Highways 6 and 150 are partially located within the FPA. 1-74 crosses north-south through the floodplain and all three highways presently utilize the Iowa-Illinois Memorial Bridge. -26- 2. 0434 Of particular significance in the FPA is River Drive, which runs parallel to the Mississippi River from 20th to 55th Streets. A newly-constructed thoroughfare, the drive is en¬ visioned as an eventual scenic roadway along the river and the Ben Butterworth Memorial Parkway. At this time there is no traffic signalization; as a result there is a heavy volume of truck traffic along this route. The negative impact on the esthetic enjoyment and recreational use of the Memorial Parkway has caused the City of Moline to consider modifying traffic controls on the drive. 2. 044 Utilities 2. 0441 The Moline Water Department, which supplies water for the City, has a facility at the Mississippi River and 18th Street, where it draws water from its water intake and puri¬ fication plant. At present, an underground tank and three elevated tanks with a total capacity of 6,000,000 gallons are used for water storage. An additional underground tank facility with a capacity of 3,500,000 gallons is to be constructed on the 18th Street property in the near future. 2. 0442 Also within the FPA is Moline's sewage treatment plant at First Street and Second Avenue. This facility is one of two serving the City of Moline, and handles all sewage north of 23rd Avenue (another facility on the Rock River handles sewage south of 23rd Avenue). The northern facility on the Mississippi consists of primary treatment of the waste with the effluent disposed in the river and the filter cake is taken to sanitary landfill for ultimate disposal. Separate facilities exist for stormwater runoff sewers. l 2. 0443 Iowa-Illinois Gas and Electric Company is also located in the FPA. This company maintains a large complex along the river at Second Street including a dam across the Sylvan Slough connecting the main plant with storage facilities on Sylvan Island. Gross generating capacity of this facility totals 160,000 kilowatts. The utility also maintains a small substation in the floodplain. 2.0444 Telephone service is provided by the Illinois Bell Tele¬ phone Company; the company has no major improvements in the floodplain. 2. 045 Housing Characteristics -27- 2.0451 The 1970 census indicated a total of 16,619 residential units in Moline, of which 15,907 were occupied. There are 337 units within the floodplain area, 27 of which were vacant in 1972. Because the FPA contains some of the oldest housing in the City, the median house value is $12,000 as compared with a median value of $18,400 overall in the City. This is in part reflected by the variation in percent of units which are owner-occupied; two-thirds of the units in Moline are owner-occupied, as opposed to only one-third of the units in the FPA. 2. 0452 The character of the residential areas in the FPA is somewhat varied. Residences in the eastern portion of the FPA--Census Tract 214--are predominantly single-family structures; Census Tract 223, in which the central business district is located, is primarily multiple-family housing; Census Tract 224 contains small multiple-dwelling units. 2. 0453 The condition of the units also varies. A large portion of the housing stock is in relatively good state, although some pockets of particularly old housing contain deteriorated units. Generally, however, real estate trends indicate a slow, even rise in the value of the units, at least in part reflective of an increasingly tight housing market (both rental and sale) in the City as a whole. 2.046 Parks and Recreation 2.0461 Sylvan Island is a small 35-acre island located along the south bank of the Mississippi River between Moline's eastern city limits and about Fourth Street. The only public land access point is a footbridge at Second Street. (Other land access points are closed to the public. ) The island is presently undeveloped for recreational use. Nevertheless, the area is a popular locale for fishing and outdoor activities such as hiking, birdwatching and nature study. Recent surveys completed by Augustana College indicate that fishing is the predominant recreational use of the island. 2.0462 The 27-acre Butterworth Parkway extends east to west in parcels from 27th Street to 55th Street. It is situated between River Drive and the Mississippi River shoreline. Efforts are now underway to complete acquisition and to complete the linear Parkway. Recreational facilities in the Parkway include: a boat marina, two boat launching basins and four ramps, six picnic shelters, three parking areas with a total capacity of 350 -28- automobiles, and 125 trailers, three public restrooms, and the Butterworth Memorial. The Moline Sea Scouts currently lease a portion of the Parkway for a training site. A privately owned excursion boat operates during the summer and early fall months from Parkway property. 2.047 Esthetics 2. 0471 The land along Moline's riverfront between First and 34th Streets and 48th to 55th Streets is either developed and currently in use or recently disturbed from its natural state. From First Street to 16th Street riverfront property is privately owned and used by the industries along the Mississippi. Although some access to the riverfront is available from 16th to approxi¬ mately 21st Street, this area is also privately owned and the riverbanks are almost completely undeveloped; a privately- owned levee has been sodded but otherwise, the area is un¬ attractive to view. From 21st to 27th the riverfront is developed almost to the shoreline, and is utilized for docking facilities and parking lots. From 27th to 34th Streets, the eastern edge of Reach A, the land is part of the Ben Butterworth Memorial Parkway; the area between the river and River Drive is narrow and is presently used for parking. Bordering this section are a few scattered trees--elms , cottonwoods , willows --which set the park off from industrial lands to the west. Though necessary for surrounding industries, the parking lots distract the viewer from the expanse of the Mississippi visible at this juncture. 2. 0472 Reach C, extending from 48th Street to East Moline, includes the Marquis Harbor Boat Club and marina and storage areas for the steps of the Unit Step Company and the buses of the Moline Gospel Temple. The area has received little care, and disturbed vegetation abounds. The esthetic quality of the river¬ front is damaged by this wasted land. Scattered amongst the rubble are a few small to medium sized elms, soft maples, and willows, as well as some mature cottonwoods. 2. 048 Historic and Archaeological Sites 2. 0481 Under the auspices of the Illinois Department of Conservation, the Illinois Historic Landmarks Survey has issued an interim report on historic landmarks in Pock Island County. The report will be reissued in a final form containing those sites of "...aesthetic, technological, historical, and archaeological -29- o interest. . . " as identified by the Illinois Historical Sites Survey. Designation of sites or structures by the Survey signifies an historical importance attached to the site; such designation is only an advisory appellation and does not infer any regulatory powers. Two sites within the flood project area have been included in the Illinois Historic Landmarks Survey’s Interim Report. They are: Frank Foundaries Office, at Third Avenue and Zlst Street, which was formerly a railroad station constructed in 1900; and the Berry Bearing Works, built around 1870 at Third Avenue and 18th Street, which was originally a post office. Although affected by flood¬ ing in the past, both structures are in good condition. Neither is expected to be negatively affected by the proposed flood control project. Other non-registered historic buildings were identified by the Augustana Research Foundation. That report is available for review at the Rock Island District Corps of Engineers' office in Rock Island, Illinois. 2. 0482 At this time, there are no landmarks of any descrip¬ tion in the City of Moline listed in the National Register of Historic Places or designated as National Historic Landmarks, although the above two structures are eligible for inclusion. The Arsenal Island and the Hauberg Civic Center in neighboring Rock Island are included in the National Register and are the only sites in the Quad Cities to be so designated by either of the historical societies. 2. 0483 An archaeological assessment has been completed for both the project area and the borrow pit. The pedestrian survey indi¬ cates that there are no potential sites within the construction area; however, there are many potentially significant sites in the borrow area. The full report is available for review by qualified archaeo¬ logists at the Rock Island District Corps of Engineers' office in Rock Island, Illinois. 2.049 Description of Flood Plain First to Tenth Streets 2. 0491 Industrial development is the primary land use north of Third Avenue. The Moline wastewater treatment plant, the Iowa-Illinois Gas and Electric Company, and Deere & Company extend along the riverfront. However, fishing remains a popular recreation along Sylvan Slough, despite the industrial activity. 3- Inventory of Historic Landmarks in Rock Island County: Interim Report, Illinois Historic Landmarks Survey, page 1. -30- Tenth to 18th Streets 2. 0492 Near Tenth Street the floodplain widens to include areas south from Third Avenue to Seventh Avenue. The central business district extends from 11th Street to 18th Street primarily along Fifth Avenue. Industry is still predominant north of Third Avenue; the City’s waterworks is situated adjacent to the river at 17th Street. Much of the industry in this area has developed contiguous to the railroad right-of-way which continues for the length of the floodplain. Small service outlets for both business and citizen needs are also interspersed throughout this area. 2.0493 Plans are being developed to convert sections of Fifth Avenue into a pedestrian mall, and to funnel traffic onto Fourth and Sixth Avenues, which will become one-way streets. Due to the number of employees at the industrial plants along the river, traffic at particular times of the day is extremely congested. The changes suggested above, along with the con¬ struction of a new Arsenal Bridge and the completion of 1-74 interchange, should help to alleviate this problem. 18th to 27th Streets 2. 0494 The construction of the Iowa and Illinois Memorial Bridge, which has been continuing for a number of years, has directly and indirectly altered many of the land uses in this section. Many businesses were displaced by construction of the interchange and others will be disrupted by the extension of Fourth Avenue. Commercial facilities dominate the land uses along the western edges of this section, with heavy and light industry predominating through the remaining areas to 27th Street. Third Avenue, a major artery, becomes River Drive at 25th Street and is situated much closer to the river. American Air.Filter and McLaughlin Auto Body are located on the south side of River Drive, and use the north side of this road for employee parking. 27th to 34th Streets 2. 0495 The Ben Butterworth Memorial Park begins at 27th Street. The park encompasses the land between River Drive and the Mississippi River and is used for fishing, boating and passive recreation. Industrial uses predominate south of River -31- Drive to the limits of the floodplain; the John Deere Technical Center is situated here. The Chicago, Burlington and Quincy, and the Chicago, Rock Island and Pacific Railroads utilize trackage south of those industries which front on River Drive. There are a few commercial outlets interspersed through this area. 34TH TO 55TH STREETS 2. 0496 The area from 34th Street to the eastern city limits fea¬ tures mixed land uses including some scattered commercial outlets, small industrial plants and single family housing. The park along the river is presently incomplete; currently, private owners control portions of the shoreline east of 48th Street and utilize that land for storage of concrete, debris and church buses. Along the south side of River Drive between 39th and 48th Streets, there are a number of homes which overlook the drive and the Mississippi River. Most of these lie above previous flood eleva¬ tions although the basements of some have been flooded in the past. Various industries, offices, and retail outlets are interspersed with dwellings south of the railroad right-of-way. The area east of 48th Street, where the Mississippi curves northeast, features three trucking firms; these companies generate a great amount of truck traffic along River Drive and 55th Street. 2.0410 Future Development 2. 04101 While the forecasts for the Quad Cities and for Moline indicate growth in residential and commercial land uses over the next 25 years, little change is anticipated for the existing land use pattern in the FPA. A loss in the amount of acreage devoted to single-family dwellings as well as small increases in the amount of land used for high density residences and vacant land are the only changes expected. 2. 04102 The Moline floodplain has only four percent open space, including parks and vacant land. The dominance of manufacturing can be expected to continue due to the large fixed investments in heavy manufacturing facilities. These two factors --lack of vacant land and the industrial commitment-- suggest similar land uses in the future. However, the completion of Interstate 74 may cause some substitution of small industries and retail outlets for service facilities such as hotels, motels and restaurants. This new highway may lower transportation costs for manufac- -32- turers in the floodplain, but because of insufficient vacant land, such savings will probably not generate additional expansion or new construction. 2. 04103 These forecasts may be unrealistic in light of efforts by the City and the First Neighborhood Redevelopment Corporation to construct various facilities in the FPA. Plans to revitalize the central business district through the development of a mall along Fifth Avenue and to build high-rise apartments near 18th Street adjacent to the river are now nearing implementation. Other plans for an office/commercial complex along Fifth Avenue and the construction of a cultural center for conventions and the fine arts are under preparation. Such development could be anticipated to have secondary effects on surrounding land uses and could substantially alter future land use and density. 2. 05 DEVELOPMENT AND ECONOMY 2.051 Commerce and Industry 2.0511 Within the Quad Cities area, the Illinois cities of Moline, East Moline and Rock Island provide a major share of the approxi¬ mately 140,000 jobs reported in 1972. In these cities, general manuf actur ing - - and most significantly, manufacturing of farm machinery and equipment--provide a thriving economic base for the population of the metropolitan community. As indicated in the analysis of skills and occupations, manufacturing is followed by retail trade, services, and government-related jobs as primary sources of employment, when measured in terms of total number of jobs and total volume of payroll. However, if the evaluation is weighted in favor of the "export" value of an industry--in essence, the percent of its sales outside the metro¬ politan area, and thus, the amount of non-local money derived-- then manufacturing still dominates, but retail trade, services and government are now outranked by agriculture, primary metals industries, and wholesale trade. 2.0512 In any evaluation, manufacturing is dominant. Manu¬ facturing firms employ more workers in the Quad Cities econo¬ mic community than any other single industry group. The largest type of manufacturing, in terms of employment and payroll, is farm implement manufacturing. Three of the six local farm machinery producing firms--Deere & Company, International Harvester and J. I. Case Company--employ more workers than all retail trade firms or all service firms in the metropolitan area. Generally, this concentration has not resulted in an unstable, totally specialized economic environment; instead -33- the steadily growing industry has provided a rather solid foundation for the on-going industrial and income expansion of the metropolitan area. However, short-term disruptions in this economy caused by national sales slowdowns have impacted employees in this and related occupations at various times. Z.0513 One indicator of this healthy situation is the wide variety of other manufacturing concerns which are located in the area-- Montgomery Elevator, Alcoa, and Ralston Purina are among them. In addition to manufacturing, the locality is particularly well- suited to wholesaling activities since good facilities for water, rail, air and highway transportation have existed there for many years. 2.0514 In addition to the private sector, government provides substantial employment in the Quad Cities. Most notable is the Rock Island Arsenal, a complex of U.S. Government operations focused on research, engineering, and prototype production of weaponry. Approximately 6,000 persons are employed there, ranking it third behind Deere & Company and International Harvester as a primary employer. 2. 0515 The FPA has been estimated to be the source of 20 percent of all manufacturing employment and about 12 percent retail employment on the Illinois side of the metropolitan area. The farm implements industry is the largest industrial employ¬ ment source in the FPA. Montgomery Elevator, McLaughlin Auto Body and American Air Filter also have large installations there. 2. 0516 Retail outlets in the FPA primarily serve the local area rather than the entire region. This can be contrasted against the 45 manufacturing firms supplying products which are nationally distributed and occupying the majority of the 172 commercial parcels in the FPA. The predominant products of these firms, other than farm implements, are heating and air equipment and elevators. 2. 0517 The FPA is typical of the economic base and configura¬ tion of the Quad Cities area. Industrial growth and land absorption throughout the region has steadily increased. Between 1967-72 average annual land absorption rate was 5.7 acres for construction of warehouses. A total of 34.2 acres was absorbed for manu¬ facturing during the period, and 22. 8 acres for wholesale and warehouse activity. The result is that vacant available land is generally at a premium. This is particularly true in Moline and the FPA where almost all land is already developed. As -34- a result, opportunities for industrial expansion in the area are limited. 2.052 Employment 2.0521 The labor forcein the Quad Cities area is estimated to total currently 150,000 persons, of which nearly 40 percent are women. The particular skills and occupations of that force have been discussed earlier. The unemployment rate in the overall metro area has been very low historically--seldom rising above three to four percent. Unemployment has ordinarily been higher in the FPA, averaging six to ten percent. 2.0522 Both employment opportunities and the size of the labor force are expected to rise substantiallv in the future. Employ- employment in the metropolitan area will increase to almost 180,000 jobs by 1995. It is likely that the FPA will share in this growth as the businesses there expand and become in¬ creasingly labor-intensive. -35- 3. 01 OBJECTIVES AND SPECIFIC TERMS OF LAND USE PLANNING IN PROJECT AREA 3.011 Three agencies have been responsible for land use plans pertinent to this study. The Bi-State Metropolitan Planning Commission is a regional organization responsible for area-wide planning efforts; it functions as the A-95 review agency for pro¬ jects involving federal monies. Bi-State has been active in preparing plans for Scott and Rock Island Counties. Moline's own planning department is reponsible for city-wide planning and is presently updating a comprehensive plan prepared in 1966. The City of Moline's Park and Recreation Board published a Com¬ prehensive Recreation Plan in June, 1973. 3. 012 In 1968, Bi-State produced a general plan for the two- county area. A previous planning report entitled Alternative Concept Plans had suggested three alternative future growth plans: l) a trend plan, which represented a logical extension of existing growth patterns; 2) a satellite plan, in which nodes of new development would be encouraged within and around the new interstate highway loop; and 3) a corridor growth plan, where new growth outside the interstate loop would extend along corridors such as river bluffs and existing highway corridors. The 1968 general plan endorsed this corridor plan and the following gen¬ eral objectives: concentration of new development near areas which already have services; the encouragement of an expanding industrial base with alternative sites available to developers; the retention of extensive open space areas; and the maintenance and upgrading of the existing Moline central business district. 3. 013 The general plan for the project area reflects existing land uses. Beginning at First Street and extending east to approximately 27th Street, the land along the river is designated industrial-manufacturing. The central business district between 12th and 18th Streets along Fourth, Fifth and Sixth Avenues is designated commercial. Near 28th Street the parkway along the river is identified as recreation-open space extending east to 48th Street. From 48th Street to the eastern Moline city limits an industrial designation is applied to the triangular parcel of land bounded by River Drive, the East Moline city limits and the railroad tracks to the south. North of River Drive adjacent to I -36- the Mississippi River, the land is designated resource and resource processing, including undeveloped. 3. 014 The regional agency also produced two functional plans: an Urbanized Area Transportation Study and a Metropolitan Comprehensive Water, Sewage, and Solid Waste Planning Study . The transit study was designed to provide recommendations for "safe, efficient and economical movement of people and goods". Utilizing the Corridor Concept Plan, UATS, as it is called, proposes a series of new expressways and freeways on the peri¬ meter of the urbanized area connecting with existing and to-be- improved routes and providing access to transportation arteries to Chicago and St. Louis. In addition, a riverfront freeway in East Moline is proposed which would extend along the entire length of that City's frontage on the Mississippi River. The plan proposes two long-range objectives to ease traffic congestion in the project area: the construction of a new bridge at 16th Street to Arsenal Island and the assigning of traffic between 34th and 55th Streets to one-way eastbound on Fifth Avenue and one¬ way westbound on Fourth Avenue. 3.015 The Metropolitan Comprehensive Water, Sewage and Solid Waste Planning Study is a three-volume report detailing existing utility facilities and recommendations for expansion and extension of these facilities. The water supply plan proposes one water main extension in the project area, near the western city limits of Moline. The only recommendation for expansion of the sanitary sewage system in the project area is a long-range proposal (by 1985) to add secondary treatment to the North Slope treatment plant at the riverfront adjacent to Rock Island. Most of the project area is currently served by separate storm drain- ageways; in addition, at 34th and 48th Streets open drainage channels empty into the Mississippi River. The only recommend¬ ation of the plan for improvement of storm drains is currently being accomplished during the completion of the 1-74 overpass. Finally, no solid waste sites are in the project area; presently Moline has a contractural arrangement with a private hauler for the disposal of solid waste in a landfill near the Village of Andaulusia. The Bi-State Metropolitan Planning Commission suggests that Moline will make a new arrangement for solid waste disposal with the City of Rock Island. 3. 016 The comprehensive plan prepared by the City of Moline is a two-volume document inventorying existing resources and land uses in the city and detailing goals to upgrade city services -37- | and to provide adequately for expansion. Topics discussed in the report include plans for commercial, industrial and residen¬ tial expansion, highway and parks plans, and proposals for the extension of city services. Along the river the flood project area is designated for industrial use from the western city limits to near 26th Street; east from this point the parkway is identified to continue north of River Drive to the eastern city limits at 55th Street. The plan recommends the locating of medium density high-rise residences adjacent to the central business district, the revitalization of downtown Moline M as an important regional shopping and service center' 1 (page 1-9, Comprehensive Plan Report No. 2), and the intensive industrial utilization of lands along the Mississippi River except for the Mississippi riverfront park development. 3. 017 The Park and Recreation Board of the City of Moline produced a Comprehensive Recreation Plan for the City in June 1973. The plan discusses the policies of the board and the importance of recreational alternatives for the well-being of the citizens. The plan also presents an inventory of all developed and undeveloped park land as well as facilities avail¬ able at each location. Regarding the project area, three ob¬ jectives are stated for the continuing development of the Ben Butterworth Memorial Parkway: the construction of a restaurant or a motel in conjunction with the boat harbor; the building of a museum in the parkway to house artifacts and displays of activities indigenous to the history of the Mississippi River and the Moline area; and the construction of a meditation corner to provide a tranquil setting for park users. Location and other contingencies regarding these structures would depend upon the acquisition of the remaining park land between 34th and 55th Streets. 3. 018 The plan cites Sylvan Island as a potential community center, despite its non-central location in relation to the City. The Park and Recreation Board would like to develop the island for passive recreation by providing accommodations for fishermen and hikers, by installing a new bridge for emergency and maintenance vehicles and by cleaning the island of debris and reforesting it with higher grade plant material. 3. 02 RELATIONSHIP OF PROPOSED PROJECT TO EXISTING OR PROPOSED LAND USE PLANS AND CONFLICTS, IF ANY 3. 021 The 1968 general plan of the Bi-State Metropolitan Planning ► -38- Commission is consistent with the proposed flood protection pro¬ ject with just one exception. The First Neighborhood Redevelopment Corporation of Moline has proposed a series of projects to redevelop portions of the Moline central business district, including construction of two apartment buildings between 1 6th and 17th Streets near the riverfront and a restaurant and park at the north end of 17th Street. Presently, the general plan designates this land industrial-manufacturing. Coordi¬ nation with the Bi-State Planning Commission has been main¬ tained; their response indicates that the proposal is acceptable and that informal changes to the land use plan are made when appropriate. 3.022 Otherwise the proposed project is consistent with this general plan; in certain instances it might encourage plan implementation. For example , revitalization of the central business district would be encouraged through the successful implementation of the proposed redevelopment project, which includes not only the apartments and park along the riverfront but also a mall along Fifth Avenue and a commercial and office complex on the mall. Finally, the project would aid in the maintenance and enhancement of the existing industrial base through offering flood protection and reduced flood fighting costs. 3.023 The project is consistent with the plans prepared by Bi-State in the Urbanized Area Transportation Study and the Metropolitan Comprehensive Water, Sewage, and Solid Waste Planning Study . 3. 024 The Moline Comprehensive Plan appears to conflict with the proposed flood protection project over the issue of the desig¬ nation of lands between 15th and 19th Streets for industrial use. Secondary impacts of this project may be the development of the park, restaurant and apartments in areas where industrial utili¬ zation is scheduled. If such development were to occur it would require approval of the City's Planning and Zoning Department; however, presently the designation conflicts with these announced developments. The City has indicated it is cooperating with the promoting group of the redevelopment effort to develop the park and restaurant, thus reconciling this conflict. 3. 025 As noted above, the flood protection project can be expected to contribute to the revitalization of the central business district and maintain and enhance the intensive industrial base of the project area. These two accomplishments are objectives of -39- the City of Moline's Comprehensive Plan. 3. 026 As currently formulated, the proposed project does not conflict with the Comprehensive Recreation Plan for Moline. The proposed park development at 16th Street meets the Park Board's goals for additional recreational development along the Mississippi River, as does the fishing area planned for develop¬ ment coincident with the levee and wall construction at the ex¬ treme downstream end. 3. 027 Potential conflicts with the plan over usage of current and proposed park areas at 52nd Street for levee construction have been eliminated through the inclusion of shoreline improve¬ ment in concert with the construction activities. PROBABLE IMPACT OF THE PROPOSED ACTION OF THE ENVIRONMENT 4. 01 IMPACTS ON THE AQUATIC ENVIRONMENT 4-011 Hydrologic Impacts 4. 0111 No hydrologic impacts are expected to result from the proposed project. Project design would not significantly alter the flow characteristics along the river and no increased flooding is expected upstream or downstream. The large levee proposed between 16th and 23rd Streets intrudes approximately 200 feet into the river between 17th and 19th Streets, tapering to the existing shoreline at both ends. The intrusion would not interfere with the existing overall river hydrology; discharge through the existing side channel would not be reduced. However, river currents would be increased along the levee in the vicinity of the small bridge island and through the narrowed channel between the levee and Arsenal Island, resulting in slight riverbed scour as the bed load and the river bottom sediments adjust to the inequilibrium created by the levee toe. Suspended alluvial sediments would be re¬ deposited immediately downstream from the levee along the southern bank and further downstream, adjacent to Arsenal Island and could potentially develop into mudflats. These mudflats would be narrow, shoreline deposits similar to the mudflat that exists at 16th Street. Depending on the geo- morphological response to the river currents, these deposits may become stabilized by submergent aquatic vegetation or may remain barren because of shifting sediments. 4.0112 Another levee extending to the river harbor line (to 100 feet from the shoreline) between 52nd and 55th Streets is not expected to have any major long-term adverse hydrological im¬ pacts. Because the existing marina juts into the river already causing some disruption in the river flow, the new levee, which tapers into the marina grounds at its western edge, would prob¬ ably improve the movement of water along the bank. 4.012 Water Quality 4. 0121 Water quality would be little affected over the long-term by the flood control project. However, a short-term ad¬ verse impact would be the degradation of localized water quality due to the increased turbidity from sediments. The alluvial soils the project area, which will be exposed along much of the shore¬ line during construction, are easily eroded by water when dis¬ turbed. Major sediment entry into the river will occur where flood protection structures protrude into the river because con- in - 41 - struction techniques require riverbank disruptions, fillings, and river bottom agitation. These locations are: levee and toe between 16th and 19th Streets; levee and T-wall between 19th and 23rd Streets; T-wall between 26th and 28th Streets (behind American Air Filter) and levee between 52nd and 55th Streets. 4. 0122 Minor amounts of sediment will enter the river along the rest of the project length, particularly during rainstorms, but the amounts will vary according to the construction techniques needed at specific locations. The I-wall between Fifth and Sixth Streets, for instance, will be erected with minimal surface ex¬ posure since only a narrow trench will be needed to "tie", or attach, the concrete wall into the driven sheet piling foundation. Although T-walls normally require a wider trench, the T-walls designed for the Sylvan Slough area need only shallow, relatively narrow foundation trenches because the limestone bedrock is extremely close to the surface. Little sediment is antici¬ pated at these sites. Levee construction on Sylvan Island, although incorporating the existing levee and slope, is ex¬ pected to contribute greater amounts of sediment than the I-wall locations since it involves placement and com¬ paction of erosive clays. The amount which enters the river along this portion of the side channel, however, is expected to be less than the amounts contributed from sites of river encroachment. 4. 0123 As sediments enter the river at these points of distur¬ bance, they will slowly be dispersed by currents. Turbidity will increase locally along the shoreline and will slowly fan out into the river and diminish, by dilution, as the mixing processes of the currents carry the sediment particles downstream. Be¬ cause of the breadth of the Mississippi River and the flow pat¬ terns, the turbidity should be confined primarily to the Moline shoreline and the side channel south of Arsenal Island. Eventually, these sediments will reach equilibrium with the rest of the bedload; some will be deposited temporarily, to be picked up by currents in the future, some will continue their journey downstream to the Gulf of Mexico. 4. 0124 This temporary construction impact will interfere with biological productivity and may suppress riverfront recrea¬ tional activities because of the esthetic deterrent. The water intake for the Moline Waterworks located at the foot of 16th Street will.be affected during construction of an emergency gatewell structure for /the intake. Raw water will be supplied by temnorary pumping facilities during construction. Anti-turbidity construction tech- nioues will be employed during construction of earthen levees near the water works intake. - 42 - 4.013 Biological Impacts 4. 0131 An important short-term impact of the project design on the biology of the Mississippi River would be related to the silta- tion from eroded sediments. These sediments would suffocate benthic organisms and inhibit photosynthesis along the affected shoreline. Presumably, the benthic community would be eliminated for a period of one to two years while construction work was performed. During this period of high turbidity, fish species would move away from and avoid most of the Moline shoreline. Sport fishing would be very poor during construc¬ tion and would not improve until after project completion and ground surface stabilization. At that time, benthic animals would slowly become re-established along the shoreline and fish would reappear. 4. 0132 Siltation in the Sylvan Slough tailrace is of concern since sauger and walleye are thought to breed in this area. However, siltation is expected to be minimal because engineering design and positioning of the flood protection structures will not result in significant erosion. 4. 0133 The elimination of the small marsh--the result of the levee between 16th and 20th Streets--would be the most sig¬ nificant long-term adverse impact on the aquatic environment. This marsh probably contributes a considerable amount of plant material to the aquatic food chain as leaves decay and wash downstream. Loss of the marsh may result in lower productivity of the aquatic ecosystem. This impact is potentially offset by the rock riprap facing on the toe, which would diversify the benthic substrate. The rock surfaces would offer a firm sub¬ strate for attached algae, such as Gomphonema , Cladophora , or Ulothrix, around which would grow other epiphytic algae, including a variety of diatoms, blue-green, and green algal types. These microscopic plants would produce and maintain a food resource for invertebrates, fish fry and small fish, all of which would find cover in the crevices and holes created by the rocks. These fish and invertebrates would be preyed on by larger fish. Thus, the toe may attract more sport fish to that area than are presently found. The resulting aquatic community would, however, be different from the mudflat-marsh community. A quantifiable comparison of net productivities of the two communities is not possible without ex¬ tremely rigorous field studies. The other useful functions of the marsh--pollution filtration, oxygen production, and wildlife hab- - 43 - itat--would still be lost. If mudflats develop along the shoreline downstream of the levee toe, they would partially replace, in kind, some of the physical habitats lost to the toe. Limited, narrow strips of marsh type vegetation could become established along the shoreline; mayflies, clams, and other aquatic organisms may populate the mudflats. However, because these mudflat com¬ munities would be disjunct and not of the same quality or quantity as the existing marsh, their integral functions would be restricted. Thus, when all the trade-offs are considered, loss of the marsh remains a negative impact. 4.0134 The 52nd Street levee extension might eliminate some benthic organisms but again, this negative impact would be par¬ tially offset by the potential increase in the benthic community and fish populations because of the increased extent of a diverse, firm substrate. 4.02 IMPACTS ON THE TERRESTRIAL ENVIRONMENT 4.021 Physical Impacts 4.0211 No major adverse impacts on the physical setting are expected from project implementation. The regional climate would not be affected at all; little impact is anticipated for the subsurface bedrock. Soils would be disturbed; this is not con¬ sidered adverse due to the already highly disturbed character of the area. The topography would be altered by the levee- floodwall system, but only on a small scale. The topographic function of surface drainage would not normally be affected-- closeable openings are designed in the protection system. 4.0212 Project implementation would require the commitment of 400,000 cubic yards of soil to construction of the earthen levees and fill areas. A borrow site for this material has been designated by the City of Moline; it is located on a now fallow farm owned by the City in Section 24, Range 1 West, Township 17 North, on Blossomburg Road at Oak Hill. 4. 022 Biological Impacts 4.0221 Although levee design on Sylvan Island incorporates an existing levee on which is growing small, successional shrubs and trees , construction will negatively impact considerably more vegetation on the island. Since Sylvan Island supports the most significant and highest quality vegetation in the entire project - 44 - area, these impacts will probably be the most severe for natural vegetation in the project reaches. The existing levee, from the shoreline to the toe of the inside slope, is approximately 30 feet wide. The new levee, which would be approximately three ieet higher, would be 60 to 70 feet wide--a substantial expansion into the island. At present, a narrow road parallels the land side of the levee, so the new levee would not directly impact any vegetation. However, for construction, a new road would be required that would necessitate removal of some large trees and numerous small bushes and shrubs. Although access to the island's levee is possible via abandoned roads which cut across the middle of the island, the movement of trucks and heavy equipment around the island will probably require these roads to be widened causing more disruptions to the vegetation. It is anticipated that approximately five acres of vegetation, in¬ cluding plant cover on the existing levee, and adjacent to the existing roadways, would be temporarily eliminated or disturbed. The vibration and noise from the construction procedures will further deteriorate the environment. 4. 0222 From First Street to 1 6th Street, most of the riverside vegetation would be removed for project implementation. This vegetation is of low quality but does have some esthetic value, especially along the slough. Its loss can be partially mitigated by landscaping the section of levee planned along the slough. 4.0223 The elimination of the marsh between 16th and 20th Streets would also have biologic, as well as aquatic impacts. Although the marsh is small and other similar habitats of higher quality exist elsewhere in the region, the marsh represents the only resource of its kind in the urban setting. In addition to its value as wildlife habitat, biological production and pollution filtration, it has high value as a readily accessible esthetic, recreational resource. Its loss is a significant negative impact. 4.0224 Along most of the rest of project area (20th to 34th Streets and 48th to 55th Streets), some trees and shrubs would be re¬ moved but this impact is minimal. Much of the area is of very poor quality and the project would also remove piles of debris, concrete slabs , and would contribute to the esthetic enhance¬ ment of the shoreline. No impacts are anticipated for the prairie remants. 4. 0225 The loss of natural vegetation along the western portion of the project, which is equal to loss of habitat, will result in the reduction of faunal populations in the area. However, the diver¬ sity of species would probably not be affected. - 45 - 4.0226 Of the bird species found in the region, the passerine (song) birds, particularly the breeding residents, are likely to be most affected by the project design. However, adequate habitat for these birds can be found on Sylvan and Arsenal Islands so the ultimate impact of the loss of habitat (i. e. , vegetation) is esthetic, not faunal. Waterfowl and other migratory birds more closely aligned with the river habitat, would be little disturbed by the project. The bald eagle and the osprey, both relatively rare birds, would not be negatively impacted by the project. They are migrant visitors to the region and are usually sighted flying along the river, but away from the urban centers. 4. 0227 Those mammals residing in the area would move out of the area and can potentially find adequate habitat elsewhere. Some of the species may return to the area after project com¬ pletion but their local populations would be much smaller since the available habitat would be reduced after project completion. All of the affected mammals are common and well-known in urban situations. Thus, the reduced populations would not critically affect these species. 4.03 HUMAN RESOURCES 4.031 The City of Moline would receive social and cultural benefits from construction of the flood protection project. General benefits include relief from property damages, from concern over health and safety and from the apprehension of flood-related dislocations. It is difficult to measure these benefits --people perceive such disturbances in various ways; however, flood damages have been severe in Reaches A and C previously, halting business operations, isolating portions of the community from other areas, and disrupting vital utility services. If a flood near the magnitude of the 200-year fre¬ quency should occur, these disruptions would prove more than dis comforting. 4. 032 The project would provide protection to 109 homes which lie within the floodplain but would not require the taking or con¬ demning of any homes. In addition, placement of pumping structures and the new storm sewer at 19th Street should help to relieve present drainage problems, thus reducing damages caused by ponding. 4. 033 Construction of the project should provide employment for local workers and sales to local businesses. If business -, 46 t activities should increase due to the assurance of flood protec¬ tion, more employment would result, both in the permanent work force and in construction personnel expanding existing industries . 4. 034 There will als o be certain negative social and cultural impacts from the proposed flood protection project. Noise, water and air pollution produced during construction of the levee-floodwall system may disrupt recreation activities and disturb some residences, particularly in Reach C. Finally, part of the Butterworth Parkway would be taken by the levee structure; a new parkway would be recovered by the building of the levee toe out to the harbor line. Positive impacts associated with the Parkway include the provision of Federal funds to fill to the harbor line, landscape and add recreation amenities; negative impacts would include the destruction of the existing shoreline and the barrier created by the levee along River Drive. 4.04 LAND USE 4.041 Reach A 4.0411 The proposed flood protection structure from the western city limits to 34th Street would require approximately 8.5 acres of land. The levee and floodwall system would protect 26 indus¬ tries, 135 commercial establishments, eight public structures and 47 residences from inundation up to the levels of the 200- year flood, a total land area of approximately 329 acres. No buildings or structures will need to be purchased and condemned for the system. 4. 0412 A shoreline improvement would be created by the project on the .levee proposed between 16th and 20th Streets. A restaurant is proposed on the gently sloping south side of the levee; parking spaces would also be added. The toe area could be landscaped and provided with park furniture and other recreation amenities. Presently, this area is a marsh and a recipient of trash from two sewer outfalls and public dumping. The shore line is largely unused except for automobile parking; it is anticipated that these land uses would change considerably with construction of the levee and elements of the plan proposed by the First Neighborhood Corporation. 4.0413 The protection would permit other elements of the redevelopment plan to be implemented. Specifically, the pro¬ posed construction of the two high-rise apartment buildings - 47 - adjacent to the riverfront between 16th and 17th Streets would be able to proceed with the assurance of flood protection. The revitalization of the central business district--of which the conversion of Fifth Avenue to a pedestrian mall and the building of a ten-story office tower are elements --might also occur with the structural protection guaranteed. These redevelopment impacts are identified as secondary benefits of the proposed flood protection project. 4.0414 Certain disruptive impacts would also occur. During construction it is likely that there would be interruptions to existing activities due to the movement of materials in and out of the project area. In certain instances locations used for storage of equipment and inventory would be eliminated for a levee or floodwall. American Air Filter would temporarily lose parking spaces during the construction phase of the project. These disruptions are not, however, expected to be greater than those experienced due to flooding. 4. 0415 In addition, it would be necessary to raise tracks of the Davenport, Rock Island and North Western Railway approxi¬ mately three feet in the vicinity of 34th Street where the proposed line of protection crosses the tracks. During the raising, trains would be interrupted; however, parallel tracks exist which could be used to handle any traffic; normal service would return once the raising is completed. 4.0416 Other temporary interruptions to transportation ar¬ teries would occur during period of flooding. Just east of the American Air Filter property a closure structure would barricade thru traffic on River Drive from the west to the east of the structure. Access to Sylvan Island over a pedes¬ trian bridge and railroad bridge would be interrupted during flood periods by closure structures. 4.0417 The major impacts to land uses in the project area appear to be secondary in nature. Although the major industries along the riverfront have indicated their desire to remain at their locations even without flood protection, surveys of commercial establishments along Third, Fourth and Fifth Avenues indicated some apprehension about flooding equal to or greater than the 1965 flood (approximately a 43-year frequency). Some of these businesses suffered significant damage from that flood and cannot maintain sufficient profits to recover from equal or greater losses. The project would assure flood protection to these concerns. - 48 - 4. 04Z Reach C 4. 0421 Much of the area from 48th Street to the eastern city- limits would be protected by a levee and floodwall system. A total of seven industries, 22 commercial establishments and 62 residences within the 200-year flood elevation would benefit from this protection. Property in Reach C which would remain subject to flooding includes the railroad tracks from 48th to 52nd Streets, the boat harbor, and two publicly- owned structures related to the marina. The system would require almost 5.5 acres of land, however, no homes or structures of any kind will need to be purchased and condemned. 4. 0422 The major impact of the project would be the location of the levee on land from 52nd Street to the eastern city limits where the Moline Park and Recreation Board has intended an extension of the Ben Butterworth Memorial Parkway. The City presently owns much of this land, with only three parcels pri¬ vately owned. While awaiting funding for park development and purchase of the remaining land, the City has leased some of its property to industries opposite on the south side of River Drive. As a consequence, land uses currently include storage areas for the steps of the Unit Step Company and the buses of the Moline Gospel Temple. Plan implementation would require the elimination of these uses as well as future park development. 4. 0423 The proposed project would have some impact on the mixed land uses south of the railroad tracks in Reach C. Although some of the residences and industries in this area are at lower ele¬ vations, flood damage in the past has largely been a result of poor drainage and ponding. The project proposes a 6,000 gallons-per- minute pumping station and an excavated 1.5 acre permanent ponding area south of the levee between 49th and 50th Streets to relieve this drainage situation. Vacant lands, where ponding is now severe, may be developed, either for home or for small industries. 4. 0424 Four temporary impacts to existing transporation facilities would occur during construction of the project. The raising of both 48th Street and River Drive would temporarily interrupt traffic patterns in the area. In addition, four sections of railroad trackage--one section of the Chicago, Milwaukee, St. Paul and Pacific line, one section of the Chicago, Rock Island and Pacific line, and two sections of Davenport, Rock Island and North Western Railway tracks--would be raised, necessitating further interruptions in normal operations. - 49 - 4.0425 During major flood periods, transportation along River Drive and the railroad tracks in Reach C would be interrupted by the closure structures. Without protection, such closings would occur anyway; with the project in place access to the industries south of River Drive from 55th Street could continue. 4. 0426 Secondary impacts on land uses in the area bounded by 55th Street, River Drive and the railroad tracks could be expected. The assurance of flood protection-- as well as the security of knowing business operations may continue--might encourage intensification or expansion of business operations for many of the firms in this attractive area. Secondary negative impacts might include increased traffic flows and con¬ gestion on River Drive, which is already heavily utilized by both automobiles and trucks. 4. 043 Utilities 4. 0431 The existing Rock Island Arsenal and Iowa-Illinois Gas and Electric Company hydroelectric plants across Sylvan Slough will be improved in the same manner. The northern sections of each plant, through which no flow passes, will be structurally protected by a levee placed upstream of each section. The super¬ structures of the southern sections of each plant will be improved by the addition of floodwalls tied to the dams to prevent flood flows through the windows and doors of the existing buildings. Flow through the turbines in these sections will continue at each plant. The design flood stage in the tailwater area of each dam, however, will in fact cause flooding to the floor of the superstructures by backflow through the turbines. The storage area which the power company maintains on the island would be protected by the new levee. No interruption in service is anticipated during construc¬ tion of these protection measures. 4. 0432 The sewage treatment plant just west of First Street would be protected from flooding by a levee and floodwall. Place¬ ment of the structure has been designed to accommodate planned expansion of the treatment system to include tertiary processing. 4. 0433 It would be necessary to temporarily replace the water¬ works intake structure during construction with portable pumping. 4. 0434 Positive impacts of the flood protection project on utilities in Moline would include the elimination of interruptions to utility service due to flooding. Such disruptions have proven costly and present hazards to safety and health. - 50 - 4. 044 Historic and Archaeologic Sites 4. 0441 No landmarks in the City of Moline are listed in the National Register of Historic Places or designated as National Historic Landmarks. Two sites within the floodplain--Frank's Foundries Office at Third Avenue and 21st Street and the Berry Bearing Works at Third Avenue and 18th Street--have been identified by the Illinois Historic Landmarks Survey as histori¬ cally important. Other non-registered buildings were identified by the Augustana Research Foundation Report, as noted earlier. 4. 0442 The flood protection project would protect the two registered buildings, which are both subject to innundation by major floods, as well as those other structures located in Reaches A and C. If the proposed project is approved, future damage to these structures from flooding would be eliminated. Protection of historic structures is regarded as a positive impact of this project. 4. 0443 No archaeological sites were identified by the recon¬ naissance survey of the project area. As a result of the identification of sites in the borrow area, the borrow site will either be changed, or provision for appropriate preser¬ vation and removal made prior to beginning construction. A summary of the survey is included as Appendix C of this report. All efforts regarding both archaeological and historic sites are being closely coordinated with the State Historic Preserviaton Officer. 4. 045 Recreation 4. 0451 Short-term impacts to Sylvan Island are those associated with levee construction. Heavy equipment would discourage hiking and passive recreation on the north and east side of the island. During construction, its noise would further detract from the island's semi-natural state. 4. 0452 Long-term impacts would be primarily the result of the increased size of the new levee. The existing levee is over¬ grown with weeds and successional plants; to the casual observer this levee may appear to be a natural landform. The new levee would be significantly larger and more imposing than the present structure and might detract from the semi-natural state of the island. Furthermore, the elimination of a small amount of vegetation and wildlife will, at least temporarily detract from passive recreation such as birdwatching, fishing, hiking or nature education. However, since the construction is com- - 51 - pleted, the impacts of the levee should be limited to visual impacts, and occasional maintenance access. The construction roads would be remedied, and appropriate reseeding undertaken. 4. 0453 The proposed shoreline improvement on the levee toe between 16th and 19th Streets represents a positive impact of the project. The area is generally lacking in recreational facilities due to the heavy industrialization along neighboring riverfront property. The area would provide an attractive luncheon and picnic setting for both employees of neighboring businesses and residences south of the central business district. In addition, the area could serve as a recreation area for the proposed high-rise apartments between 16th and 17th Streets. 4.0454 Impacts on the proposed extension of the Ben Butter- worth Parkway are in part adverse, in that the proposed Parkway extension between 5 2nd and 55th Streets would be smaller in area than the existing riverfront. In addition, these sections of Reach C will be inaccessible to any recreation during con¬ struction, and air, noise and water pollution may disturb boating activities at the nearby marina. 4. 046 Esthetics 4. 0461 Mitigation of the visual impact of the levee and floodwall system are proposed as part of the flood protection project. At the redevelopment park between 1 6th and 19th Streets and the Butterworth Parkway, the levees would be sodded and landscaped to improve their visual attraction. Those locations where the levee and floodwall traverse industrial property would not be landscaped due to the private ownership of the adjoining land. 4.0462 In some instances, construction of the system would improve the esthetic environment. Both the redevelopment and Reach C path areas are presently scattered with refuse, cement debris and industrial storage. Development would eliminate such eyesores. 4.0463 Negative impacts to present cross-river vistas would be created by construction of the floodwalls and levees in Moline. Such visual barriers are common along urbanized portions of the Mississippi River, where other cities have built flood pro¬ tection structures; however, the project would not enhance the existing unattractive view from across the river. - 52 - 4. 05 DEVELOPMENT AND ECONOMY 4.051 Direct economic impacts to the floodplain due to the implementation of the proposed flood protection project would include the reduction of costs associated with flood damages, flood fighting, clean-up and repairs. 4.052 Indirect economic impacts are less evident but poten¬ tially more significant. The assurance of protection would enable the First Neighborhood Redevelopment Corporation to proceed with other elements of their plan, including construction of two high-rise apartments between 16th and 17th Streets, building of a restaurant on the sloping south side of the levee, and central business district improvements. The long range impact may be the gradual conversion of some areas currently used by industries to retail and service establishments. Possibly the introduction of residences into an area generally devoid of homes may aid in the revitalization of the central business district and encourage further residential developments. Should such development occur, it is anticipated that commercial and building sales would increase, thereby improving tax revenues and contributing to the national economic development objective. 4. 053 Similarly, the assurance of flood protection which would come with the construction of the levee and floodwall system might encourage existing industries to expand their facilities or intensify their operations. Such actions would increase employ¬ ment and produce greater tax revenues. 4.054 Major industries in Reach A which would be protected from flooding by the project include Deere & Company, Mont¬ gomery Elevator, Moline Tool Co. , Frank Foundries, Moline Consumers Company, McLaughlin Auto Body, Dimock-Gould, and American Air Filter. 4. 055 Industries to be protected in Reach C from flooding include Henry Engineering, Kohler and Co. , Chippewa Freight, Parr Instrument Company, Moline Body Company, and Strombeck Manufacturing Company. - 53 - . 5.01 The taking of 14 acres of land for the levee and flood- wall structure represents an adverse environmental effect. This land supports generally disturbed, successional riparian vegetation of some esthetic quality. 5.02 During the period of construction, siltation from eroded sediments along the shorelines where the levee and floodwall are constructed could reduce the existing benthic community and displace fish populations along the shoreline and in the side channel. Sport fishing from the Moline shore could be less productive through this period. 5.03 The construction of the 1 6th Street levee toe would increase siltation downstream and might cause some riverbed scour in the narrowest portion of the channel. 5.04 The small marsh between 16th and 20th Streets would be eliminated by a levee toe, lowering productivity of the aquatic ecosystem and eliminating a natural resource area. 5.05 Existing riparian vegetation on Sylvan Island would be destroyed by building the levee; additional ecosystem dis¬ turbances prompted by the need to develop roads during the construction phase would also occur. 5.06 Land planned for recreation uses between 52nd and 55th Streets would be used instead for a levee. Mitigating measures include filling out to the harbor line to create new land and the development of recreation amenities and lands caping. 5.07 Temporary interruptions in some business activities, utility lines and transportation arteries would occur during con¬ struction of the levee and floodwall. No permanent interruptions in such operations are anticipated. 5.08 Other temporary impacts would include noise and air pollution from construction of the flood protection. - 54 - 6 . 01 INTRODUCTION 6.011 The local flood problem in Moline has been under study by the Corps of Engineers since the 1965 flood. During this per¬ iod, several alternative approaches have been considered and analyzed in terms of economic, engineering and social feasibility. 6.012 There are three structural alternatives presented in this report: the first is a modification of the complete proposal which was suggested by a Corps of Engineers' feasibility report in 1970. Briefly, this scheme proposed a system of floodwalls and levees from First Street to 34th Street. The next alterna¬ tive would place a floodwall or levee from First Street to 34th Street and then from 48th Street to 55th Street. The third al¬ ternative would extend the system all the way from First Street to 55th Street. 6.013 A series of non-structural solutions were considered for Reaches B and C. These included permanent flood plain evacuation, flood insurance, flood plain management and individual floodproofing. Another alternative is the no-action scheme which would be a continuation of existing flood-fighting procedures such as sandbagging, pumping, emergency warning, temporary evacuation, and flood insurance. 6.02 ALTERNATIVE PLAN 1 (Reach A) 6.021 This plan calls for construction of a system of levees and floodwalls from First Street to 34th Street; there would also be storm sewer improvements and provisions for pumping stations. 6.022 Economic analysis was undertaken as described in Section 1 of this report. Results of this analysis are discussed below. Data have been modified to reflect 1976 dollars, except for Alternative Plan 3 which was not feasible. 6.0221 Estimate of Cost Following is a summary of costs of the Alternative Plan 1 revised to reflect December 1976 prices: - 55 - Cost Item Federal N o n-Federal Lands and damages Relocations Levees and Floodwalls Drainage Facilities Mitigation and Beautification $ 55,000 7,500,000 3,400,000 370,000 $1,391,000 42,000 Total Contract Costs $11,325,000 $1,433,000 Government Costs: Engineering and Design Supervision and Admini¬ stration $ 1,000,000 $ 4,500 675,000 2,500 Total Fist Costs $13,000,000 $1,440,000 6.0222 Estimate of Annual Charges Interest and amortization, on both Federal and non- Federal investments , were computed at 6-3/8 percent and on a project life of 100 years. The work was assumed to be com¬ pleted by 1981. The estimated annual charges are $1,025,413. 6. 0223 Estimates of Benefits 6.02231 Benefits were estimated using standard economic and statistical methodology and EC 1105-2-12. Flood damage and frequency data were correlated to derive damage probability. Benefit analysis was calculated at three levels: existing development benefits, location benefits and future flood damage reduction benefits. 6.02232 Benefits maybe summarized as follows: Existing Conditions Location Net Future Damage Reduction Redevelopment $ 448,500 49,300 574,300 261,000 Total Benefits $1,333,100 - 56 - 6.0224 Benefit to Cost Ratio 6.02241 The benefit-cost ratio was obtained by comparing the total average annual benefits with the average annual costs of the project, amortized over th* economic life of the project. With annual benefits of $1 .,333,100 annual charges of $1,025,400, the benefit-cost ratio for this plan is 1.3. 6.03 ALTERNATIVE PLAN 2 (Reach A & C) 6.031 This plan follows Alternative Plan 1 with the additional provision for protection from 48th Street to 55th Street where it would tie into the East Moline levee. 6.032 Economic analysis was undertaken in a similar method as used in Alternative Plan 1. 6.0321 Estimate of Cost Following is a summary of costs of Alternative Plan 2. Cost Item F ederal Non-F ederal Lands and Damages $1,808,000 Relocations $ 440,000 63,000 Levees and Floodwalls 8,190,000 Drainage Facilities 4,470,000 Mitigation and Beautification 640,000 Total Contract Cost $13,740,000 $1,871,000 Government Costs: Engineering and Design 1,230,000 6,500 Supervision/Administration 820,000 3,500 Total First Costs $15,790,000 $1,881,000 - 57 - 6. 0322 E s t im at e of Annual Charges 6. 03221 The same interest and amortization assumptions as in the Alternative Plan 1 were used. These values reflect the 48th to 55th Street charges added to the First to 34th Street charges from Plan 1. First to 34th Streets $ 1,025,400 48th to 55th Streets 2 2 3,000 Total Charges Alternative Plan 2 $1, 248,400 6.0323 Estimates of Benefits 6.03231 Benefits were estimated in a similar method as used in Alternative Plan 1. The intensification benefits would accrue only to Reach A. Therefore, they are included only once. 6.03232 Benefits may be summarized as follows: Existing Conditions First to 34th Street $ 448,500 48th to 55th Street 36,100 Redevelopment First to 34th Street 48th to 55th Street 261,000 32,700 Sub-Total $ 778,300 Location 49,300 Net Future Damage Reduction First to 34th Street 574,300 48th to 55 th Street _ 45,600 Sub-Total 619,900 Savings to East Moline 47,800 Total Benefits Alternative Plan 2 $1,495,300 6.0324 Benefit to Cost Ratio 6.03241 The ratio is derived in a manner similar to Alternative Plan 1. The annual benefits are $1,495,300 and the annual charges are $1,248,400; the benefit-cost ratio is 1.2. - 58 - 6. 04 ALTERNATIVE PLAN 3 (Reach A, B & C) 6. 041 This plan follows the second plan with the addition of a levee-floodwall system from 34th Street to 48th Street. There would, therefore, be a system of protection all along the Moline riverfront from First Street to 55th Street. 6.042 Economic analysis for this alternative is identical to those used for Alternatives 1 and 2. Preliminary estimates, however, indicated that this plan would not be economically justified by a large margin. This, together with the high social undesirability of Plan 3, led to its early rejection as a feasible plan. It was not studied further in detail as were Plans 1 and 2; all the cost figures are preliminary and based on 1974 prices. 6. 0421 Estimate of Cost Following is a summary of costs of Alternative Plan 3: Cost Item F ederal Non-F ederal Lands and Damages $415,000 Relocations $ 225,000 25,000 Levees and Floodwalls 1,110,000 - Pumping Plants 820,000 -- Buildings, Grounds and Utilities: Mitigation and Beautification % 370,000 “ Total Contract Cost $2,525,000 $440,000 Government Costs: Engineering and Design $ 202,000 $ 6,600 Super vis ion / Administration 151,000 4,400 Total First Costs $2,878,000 $451,000 - 59 - 6.0422 Estimate of Annual Charges These values reflect the 34th to 48th Street charges added to Alternative Plan 2 charges: Plan 2 $1,013,500 34th to 48th Street 218,000 Total Charges , Alternative Plan 3 $1,231,500 6. 0423 Estimates of Benefits 6. 04231 Benefits were estimated in a manner similar to that of Alternative Plan 2. 6. 04232 Benefits may be summarized as follows: Existing Conditions Alternative Plan 2 34th to 48th Streets Sub-Total Location Net Future Damage Reduction Alternative Plan 2 34th to 48th Streets Sub-Total Total Benefits Alternative Pla $ 432,700 30,000 $ 462,700 18,000 $1,100,600 116,600 1,217,200 3 $ 1,697,900 6.0424 Benefit to Cost Ratio 6.04241 This ratio is derived in a method similar to that used in Alternative Plans 1 and 2. The additional annual benefits are $146,600; the preliminary estimated annual charges are $218,000; this produces a benefit-cost ratio of .67. Based on 1976, prices and conditions, the B/C would be lower. The low ratio, com¬ bined with extremely negative environmental impacts resulted in the alternative’s elimination from further consideration. - 60 - 6. 05 NON-STRUCTURAL COMBINATION 6.051 A series of non-structural measures were identified and studied as an alternative to structural protection. The potentials of the Federal Flood Insurance Program, local zoning and building regulation, floodproofing, and selective evacuation were examined, individually and in combination. 6.052 The flood insurance program provides to applicant communities a Federally subsidized program of property in¬ surance for homes and businesses located in flood prone areas. To maintain eligibility for the program, local communities must control development within that flood plain, generally through local zoning regulations, in order to assure no intensification of land use there, and to encourage, over time, elimination of inappro¬ priate uses. Once flood insurance is available, individuals living in the 100-year flood plain must purchase the insurance, in order to qualify for financial assistance from any Federal agency, or any Federally insured, supervised, or subsidized agency for the acquisition and construction of structures. The City of Moline has entered the program; flood insurance will assist those individuals already located in the flood plain. 6.053 Additional local regulations enactedby the City of Moline and/or Rock Island County would control development in the floodplain and thereby lessen damages due to flooding. Flood plain zoning-- zoning against new development in the flood plain, and in some cases, against certain kinds of im¬ provements to existing structures--and building codes are the most common types of regulation. The City of Moline currently has a building code, although it is not applied specifically to flood-prone areas; it is currently studying flood plain zoning, and expects timely approval, in order to assure continuation of its flood insurance program. 6.054 Selective permanent evacuation--removing buildings and property from the flood plain area--has also been considered. Some evacuation will be affected with the construction of the riverfront park between 34th and 48th Streets; other structures are being removed by business interests as they become uneconomic and/or unusable. However, for the most part, land is sufficiently desirable to discourage eventual evacua¬ tion. Most land which is cleared is immediately reused, often through construction of more substantial units. -61- 6.055 Floodproofing consists of structural changes and ad¬ justments to existing properties subject to flooding and the raising of certain railroad and vehicle rights-of-way for emergency or regular access. Windows and doors may be sealed and/or the entire property raised. This alternative could be implemented for some structures if no structural measures are adopted. 6. 056 Total flood plain evacuation is an additional alternative. However, in this instance, the location of many industries, commercial and public facilities, and residences in the flood- plain makes total evacuation of the flood-prone area unreasonable from both social and economic standpoints. Specifically, the combination of access to water, power and rail lines makes the floodplain area extremely desirable for many types of commerce and industry; there are no other such sites within the City, and few, if any, within the metropolitan region. Residential land is also desirable for its view of the river as well as for accessibility to many places of employment. Previous flooding has not been a major deterrent. 6.057 Estimate of Cost 6. 0571 Non-structural measures were rejected for Reach A at the outset; evacuation could not rationally be contemplated, costs and dislocation caused by floodproofing and raising of structures were prohibitive, and flood plain regulation and insurance did not provide any protection against continuation of flooding. No specific cost estimates were prepared. 6. 0572 Preliminary cost estimates were prepared for indi¬ vidual non-structural alternatives in Reaches B and C. The approximate value of all property in those reaches is $25,000,000--this would roughly indicate the replacement cost of the structures. It does not reflect relocation costs, loss of business, and other related costs. Evacuation then would have a cost considerably in excess of $25,000,000-- perhaps as high as $40,000,000. 6.0573 The costs of flood plain insurance must include both the cost to individuals and to the Federal government, which subsidizes the program. Following is a summary of the current cost of insurance to individuals and businesses: -62- Maximum Value of Structure Rate Maximum Value of Contents Rate Single Family Residences $ 35,000 .25 $ 10,000 . 35 All Other Residential 100,000 .25 10,000 . 35 Non- res idential 100,000 .40 100,000 .75 Coverage cost, in excess of the limitations shown above, are based on actuarial rates--computed after the city has enrolled in the program. The cost of coverage to the insured is generally expected to represent ten percent of the real cost--the Federal government bears the other 90%. Using the above figures as baseline costs, a conservative estimate of annual flood insurance cost would be $64, 500 to flood plain residents, and $580, 000 to the Federal government. 6.0574 In order to floodproof to the minimum 100-year level, many structures would require raising at least nine feet; costs of such modification would outweigh benefits by a considerable percentage. For example, the cost of raising the existing ground adjacent to a 1 00-year flood level alone is $2,025,000 for Reach B and $2,250,000 for Reach C; this does not include the additional costs of structural modifications to buildings in these reaches. 6.05 8 Estimate of Benefits Specific level of benefits would vary depending on the particular measures chosen and implemented. If total evacua¬ tion were undertaken, the average annual benefit would be $534,900. Similarly, if total floodproofing could be achieved, average annual benefits would be about the same. If either partial evacuation or partial floodproofing were achieved, the average annual benefits would be reduced. 6.0582 Benefits resulting from flood insurance would vary with the number of individuals and businesses who decide to enroll, and the relative amount of coverage each buys. It could range from several hundred thousand dollars a year to a much smaller amount. - 63 - 6.059 Benefit- Cost Ratio 6. 0591 Individual ratios have not been computed; comparison with those prepared for Alternatives 1, 2, and 3 would be meaningles s. 6.06 CONTINUATION OF EXISTING FLOOD PLAIN MANAGEMENT PROGRAM (The No-Project Alternative) 6.061 Without a project, present trends for the flood plain would continue. Estimates indicate flooding potential would continue at an average annual damage of $2,002,600. The 1965 flood of record, which was considered to be a flood of 43-year frequency, caused damages of about $3,000, 000, adjusted to 1974 dollars. This damage would be much greater for more severe floods. The social impacts are also important. Long¬ term effects include anxiety, distress and loss of life. Shorter range effects include danger to health and safety brought on by wet and unsanitary conditions left after a major flood. 6.07 SUMMARY 6.071 Of the three structural alternatives considered, Alterna¬ tive Plan 1 is considered to be both economically feasible and socially desirable. Alternative Plan 2 is also economically feasible and is generally socially acceptable. Lands usurped from proposed park use will be replaced, while otherwise unprotected areas will be included in the proposed protection plan. Alternative Plan 3 is not economically justifiable, and would occupy the prime area the Park Board has under development. 6. 072 Flood plain evacuation has been rejected as economically unfeasible as well as unacceptable to business and community needs. Floodproofing has also been studied; this method is generally infeasible from both structural and economic view¬ points. The no-action alternative has both economic and social aspects which make it undesirable. It would allow the continua¬ tion of flood damage and community problems in transportation, health and wellbeing. -64- BLANK 65 . ! v .> ' ■ ' ' " - ■ ■ .* * * VII - THE RELATIONSHIP BETWEEN LOCAL SHORT¬ TERM USES OF MAN'S ENVIRONMENT AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY 7.01 In the early development of the Quad-City region, settlers chose to live on the Mississippi River flood plain for ease of access to, and efficiency of transportation, energy systems and other advantageous features of the landscape. As the settlement grew, natural resource uses, such as forests, prairies, productive agricultural soils and some exploitable mineral resources were lost to the commitment to human and man-made resource values. Because of this choice, the Quad-Cities--specifically Moline--became a center of habitation, employment and production. The subsequent investment in these man-made resources increased the societal values of the early choice toward man-made resource uses. These resources are as important as the natural resources originally present. 7.02 In the context of the natural environment, the following short-term versus long-term changes would occur: . The destruction of the marsh between 16th and 20th Streets represents the loss of intrinsic values of a small functioning wet¬ land for the City of Moline. Although the marsh is disturbed by the presence of urban refuse, it offers a rare resource to an urban center such as Moline. The construction of the levee in the area would eliminate the future potential for preservation of the marsh as a natural resource. . Construction of the levees faced with riprap may increase the long-term aquatic produc¬ tivity by diversifying available substrate types and may ultimately increase fish popu¬ lations and diversity. Short-term dislocations of benthic communities caused by this construc¬ tion would not be permanent; these communities would return once construction is completed. . Sedimentation produced during construction would temporarily reduce local water quality, lowering the productivity of the river and dispersing fish species in some popular fishing areas. Once construction is completed, the aquatic ecosystem along the Moline shoreline should function as it does under current conditions. -66- . No particularly unique vegetation would be eliminated by the construction of the levee and floodwall. Existing disturbed plant species would be destroyed, to be replaced by land¬ scaping once the project is built. 7.03 Within the man-made environment, the following short-term versus long-term uses are associated with the Moline flood protection project: . The reduction of future flood damages may have significant long-term impacts on the economy of the flood plain. The assurance of protection may stimulate further redevelopment efforts which increase the productivity of both existing businesses and new establishments attracted to the area. The flood plain offers features attractive to industry, including excellent rail and road transportation and an ample supply of fresh water. Such features, with the pro¬ posed protection from flood damages and other losses associated with business disruptions, would probably encourage revitalization efforts. . In addition, the flood protection project is essential to certain elements of the First Neighborhood Redevelopment Corporation pro¬ posals, including the park, restaurant and apartments adjacent to the riverfront. If these features of the proposal are implemented, other elements, including creation of the pedestrian mall on Fifth Avenue, construction of the office tower, and the building of the Metropolitan Center, would be more likely to succeed. Such efforts may stimulate further development and alter the long-term forecasts of land uses in the project area. 7.04 Since the commitment of natural environmental resources for the implementation of flood protection in Moline are minimal and the human resource gains are significant, the flood protec¬ tion project insures continued and improved human safety and productivity for future generations of Moline residents. _ 67- VIII - IRREVERSIBLE OR IRRETRIEVABLE COMMITMENTS OF RESOURCES WHICH WOULD BE INVOLVED IN THE PROPOSED ACTION SHOULD IT BE IMPLEMENTED 8. 01 Construction of the proposed flood protection project would result in: The commitment of economic resources needed for acquisition, construction and maintenance of the proj ect. The conversion of 27 acres of industrial and open space land to the right-of-way for the levees and floodwalls . The elimination of a small marsh between 1 6th and 20th Streets for the levee toe and park development. The removal of existing riparian vegetation along the Moline shoreline and on Sylvan Island, to be replaced by the levee and floodwall struc¬ ture and some landscaping. The elimination of the natural shoreline between 16th and 20th Streets and 52nd and 55th Streets, to be replaced by rock riprap on the levee toes. The commitment of such materials as clay fill, cement, reinforcing steel and rock riprap for the protection structures, as well as considerable quantities of electrical and petroleum-based energy both during construction and during the 100-year operation and maintenance of the project. The elimination of an unobstructed panorama of the Mississippi River and the Iowa shoreline from Reach C by construction of the levee from 52nd to 55th Streets. -68- 9. 01 PUBLIC PARTICIPATION 9. 011 Citizen participation was a key element is assessing the feasibility of this project, for issues of concern to businesses and residents of the flood plain were not always apparent during the de¬ sign phase. Numerous interviews were conducted to explain the implications of the project and to elicit suggestions for improving the design. Discussions were also held with local business groups, the City government, and the local and regional planning bodies to insure close cooperation. Proposed redevelopment plans for the Moline central business district were assessed in light of the pro¬ posed flood protection; efforts were made to insure compatibility between the two projects. 9. 012 During the preparation of the environmental inventory, the Augustana Research Foundation conducted surveys of residences and businesses within the flood plain. The purpose of these surveys were to ascertain why people would choose to live or locate their businesses in this area and what impact flooding or the threat of flooding has had on their decisions to remain in the area. These studies indi¬ cated that, in general, both residents and businesses desired to remain in their present locations even with the danger of serious flood damages. Reactions to the proposed protection project was mixed, with the majority in favor of the proposal and many wanting to see specifically what would be involved. 9. 013 Following compilation and analysis of data for the various alternatives, a preliminary information meeting was held on August 26, 1974, with the Public Works and Planning Committee of the Moline City Council, and representatives of the Fhrk District. A similar information meeting was held with the Moline City Council on September 24. Particular concerns of the Council members were expressed and areas for future study discussed. A public pre¬ formulation meeting was held on September 30, 1974. Its purpose was to acquaint the citizens of Moline--particularly occupants of the floodplain who might be affected by the proposed project-- with the ideas being formulated and the kinds of alternatives under consider¬ ation. Public input was vital in the final definition of the project. Identification of a proposed flood protection plan for further study was accomplished at a December 17 meeting of personnel repre¬ senting the Rock Island District, North Central Division, and Chief of Engineers. At the meeting, the alternatives were discussed, modifications to the authorized plan considered, and a recommended plan identified. -69- 9. 014 Environmental issues raised during discussions with resi¬ dents of the flood plain included loss of the parkway in Reach C, blocking of scenic panoramas across the Mississippi River, and the preservation of fishing activities. Many persons expressed con¬ cern over the future disposition of Sylvan Island and what impact protection measures on the island would be. However, support for some type of flood protection for Moline was expressed by the broad section of the citizenry, including residents, industry and retail personnel. 9.015 A formal public meeting was held on April 17, 197 5, at 7:30 P. M. in the Moline YWCA. The project reformulation effort was described and the specific design, economic and environmental characteristics of the projects discussed. At the completion of the formal presentation, attendees were invited to offer formal state¬ ments. Robert Borth (Legislative Aide to U. S. Representative Tom Railsback), Charles Kulp (Director of the Rock Island District of U. S. Fish and Wildlife Service), and N. R. Lundeen (Vice President, Moline Consumers Company) made formal statements. 9. 016 Following the formal statements, an informal question and answer session was held. Only a few issues were raised, centering primarily on the issue of raising upstream flood heights. There appeared to be a general concern that the Moline, and other Quad Cities' protection projects, would increase the danger of flooding in other areas along the Mississippi. 9. 017 A list of those attending the meeting is included at the con¬ clusion of Section 9 of this report. 9. 02 GOVERNMENT AGENCIES 9. 021 Several public agencies and officials offered formal com¬ ments on the draft EIS. The excerpts listed below are followed by responses to each comment; reference to responses to similar comments made elsewhere are indicated where appropriate. 9. 022 United States Congressman Thomas Railsback Comment 1 : Of particular concern to me, and I have written and met with the Corps to express my views, is the need to preserve as best as possible, the beauty of the river and where feasible to provide recreational facilities which may be enjoyed by the citizens of the Quad Cities. Levees and floodwalls do not produce a natural setting and are bound to c ross -70- disturb some areas of esthetic quality. It is imperative that everthing be done to make the physical setting accept¬ able in appearance, consistent with effectiveness and economy of construction. Colonel Johnson described preliminary plans for beautifi¬ cation to me and assured me that flood control projects include treatment for the abatement of unsightly aspects and that it is Corps policy to conserve and enhance the environment associated with all its projects. Specifically, with respect to the plan for Moline, Colonel Johnson out¬ lined a program which would include grading and seeding of borrow areas, spoil areas, levee slopes (unless riprap is required) and all disturbed areas. In addition, there is to be plantings to screen unsightly areas, to screen areas where levees and walls intersect, and to break up long reaches of levees or walls. We also discussed construction of pedestrian paths and steps over the levee and walls at selected locations, rip¬ rap fishing piers, a boat launching ramp, and park and picnic areas. Response : No comment necessary. The plan described above is an integral part of the revised proposed project. 9. 023 Advisory Council on Historic Preservation Comment 1 : Compliance with Executive Order 11593 "Pro- tection and Enhancement of the Cultural Environment" of May 13, 1971 . In compliance with Section 1(3) of the Executive Order and §800. 4(a) of the Advisory Council's "Procedures for the Protection of Historic and Cultural Properties" (36 C. F. R. Part 800) (copy enclosed), the Corps of Engineers should identify all historical and archaeological properties located within the area of the undertaking's potential environmental impact that are eligible for inclusion in the National Register of Historic Places. In the case of archaeological resources, it may be necessary for the Corps to undertake an archaeo¬ logical survey of the area to adequately comply with the provisions of this section. -71- Response : An exhaustive list of both historic sites and historic buildings was compiled as part of the Augustana Research Foundation Environmental Inventory mentioned in the report. Inasmuch as the structures would be affected by the proposed project only by the elimination of flooding, the list was not included in the EIS. It is available from the Rock Island District, however. A pedestrian survey has been completed by a team of qualified archaeologists; no potential sites have been found in the project area. Several sites were identified in the proposed borrow area, however. As a result, the borrow site will either be changed, or provision of appropriate preservation and/or removal made prior to beginning construction. Any activities will be closely coordinated with the State Historic Preservation Officer. Comment 2 : In the event eligible properties are identified in the area of the undertaking's potential environmental impact, the Corps should comply with the remaining pro¬ visions of §800.4. It should be emphasized that for the purposes of the Council's procedures " a Federal, federally assisted, or federally licensed undertaking should be con¬ sidered to have an effect on property eligible for inclusion in the National Register when any condition of the under¬ taking caused or may cause any change, beneficial or adverse, in the quality of the historical, architectural, archaeological or cultural character that qualified the property under the National Register criteria" (36 C.F.R. Part 800.8). Response : As noted previously, the only change anticipated is the elimination of damage due to flooding. No changes in the historical, architectural, archaeological or cultural character are anticipated. 9. 024 United States Department of Agriculture, Soil Conservation Service Comment 1: Care should be taken to control erosion during and following construction. The levees should be vegetated immediately following construction. If permanent seeding cannot be made at construction time, temporary seedings should be considered. -72- Response : In all Corps of Engineers construction contract specifications, a technical provision is included covering environmental protection. The contractor must develop, submit and receive approval of an Environmental Plan before beginning construction. Among the elements of this plan must be provisions for erosion control. The plan is enforced during construction by the Area Engineer. Comment 2 : Consideration should be given to developing borrow areas for fish and wildlife use. Response : With the approval of the City of Moline, the Corps of Engineers could revegetate the borrow area with trees and shrubs known for their use as wildlife habitat. However, it should be noted that the final disposition of the borrow site is the right of the City, which owns it. 9.025 United States Department of Agriculture, Forest Service Comment 1 : The importance of vegetation in this highly developed area is greater than normal because of its scarcity. For esthetic purposes and reduction of siltation, all reasonable efforts should be made to replace vegetation removed during construction as quickly as possible. Response : See response to Department of Agriculture Comment 1. 9.026 United States Department of Commerce Comment 1 : Flood warning systems are a recognized non- structural method for flood damage reduction. Flash flood warnings in the area are provided by the Moline National Weather Service Office. Flood forecasts are furnished by the Moline Weather Service Office supported by Kansas City River Forecast Center, with lead time varying from about 12 hours with heavy rains immediately above Moline up to several weeks with snowmelt flood potential. A net¬ work of precipitation and stage reporting stations supports this program. In addition, large weather surveillance radars at Minneapolis, Minnesota, Neenah, Wisconsin and Marseilles, Illinois, provide for continuous monitoring of storm movement, areas of rainfall, and rainfall intensity. During the next few years advances in technology should enable improvements in our river and flood forecasting -73- service. It is well established that a system of river fore¬ casting and flood warning provides operational efficiency essential to good water management. A river forecast system is fundamental in the design and essential to the operation of flood control structures to maximize project benefits. Response : No response necessary. 9.027 United States Department of Housing and Urban Development Comment 1 : The Chicago Area Office of the Department of Housing and Urban Development recognizes the significant contribution that the Corps is providing to the health, safety and welfare of the City of Moline. The EIS prepared by the Corps has clearly demonstrated that the long term positive impacts of the project clearly outweigh the fiscal costs and short term adverse environmental impacts that were identified. The only suggestion that we can offer is that the Corps provide in its final EIS, sketches of the routes that trucks and heavy machinery will use to travel to and from the project. We believe this, with a consideration of alternate routes, is important so as to minimize the noise and dust exposure to nearby residential communities. Response : Unfortunately, the routes to be used during con¬ struction are not known at this time. They will be estab¬ lished at the time of construction contract award, and must be part of the contractor's Environmental Plan. Normally only major arterials would be used and roads currently used by heavy trucks. Residential streets and areas would be avoided to the maximum extent possible. -74- 9. 028 United States Department of the Interior, Office of the Secretary Comment 1 : Phase I General Design Memorandum -- The proposed protection measures will be constructed in an urbanized area where wildlife values are limited. Therefore, wildlife resources would not be affected significantly by the proposed project features. We are pleased the proposed recreation and mitigation plans for Sylvan Slough and the area between 52nd and 55th Streets provide for fishermen access and use as presented on Plates E-10 and E-ll. In the event project construction, operation and maintenance in Reach A adversely affects the valuable Sylvan Slough fishery resource and use of this resource, we recommend that the U.S. Fish and Wildlife Service and the Illinois Department of Conservation be consulted for appropriate measures to restore the fishery to present day conditions and recommend the fishery be restored at project cost. We are pleased too that the City of Moline on May 6, 1975, resolved the desire to rehabilitate Sylvan Island. The reso¬ lution and resulting plan implementation would "... instate forestation, accommodate passive recreation, improve facilities for fishing, hiking and bird watching ..." The City ". . . intends to consider means to protect the fish and wildlife resources that exist on or near the island, as well as the fish and wildlife which taken permanent and temporary refuge on the island. . . ". We request that the final Phase I GDM reflect the intent of this resolution, especially as it pertains to protection of fish and wildlife resources. Response: The resolution has been reflected in the Final GDM. Comment 2: The selected plan would include raising and strengthening the levee system on Sylvan Island. Construc¬ tion of an automobile bridge across Sylvan Slough to the island and a perimeter road around the island is also pro¬ posed. We recommend that the automobile bridge and peri¬ meter road not be constructed in order to preserve and enhance the passive nature of recreational activities which now take place on Sylvan Island. -75- Response : Apparently a misunderstanding has occurred. The proposed plan does not propose construction of an auto¬ mobile bridge or permanent construction of a perimeter road. The existing railroad bridge and a temporary con¬ struction road would be used during construction. Following completion of the levee project, the road would be used only for periodic maintenance. At present, the City of Moline Park Board is considering con¬ struction of a new bridge. It is our understanding, however, that that bridge would be used for maintenance and emergency vehicles only, or for public access to a parking lot on the island side of the bridge. Public vehicular traffic will not be allowed on the island. Comment 3: Environmental Impact Statement -- The state¬ ment adequately describes the existing fish and wildlife resources and the proposed project impacts of these resources, with one possible exception. Section 4. 0111 should be revised to discuss the impacts of flow reduction and the development of mudflats on the fishery and other aquatic resources. Response : As has been indicated in the EIS, no flow reductions are anticipated from the flood protection project The impacts of the project on the aquatic biota are dis¬ cussed in Section 4. 013. In particular, see Section 4. 0133, which has been revised to include the biological effects of potential mudflat development. Comment 4 : Over the proposed 100-year life of the project there is about an even chance that the area to be protected be inundated by a flood higher than the 200-year flood. In this event, abrupt, deep flooding of the low-lying protected area is likely as the levees are overtopped, and in view of the proposed high density residential use there appear to be hazards which should be discussed in the statement. Response : The three to four feet of freeboard provided by the project would contain the Standard Project Flood. Because of this, it is extremely unlikely that levee would be over-topped at any time during the projected project life. -76- Comment 5: Since the proposed plan is intended to foster change and intensificiation of land use in this area, the development of other land outside the flood plain for these uses should be considered in detail among the alternatives. Response : The proposed plan is not intended to foster change and intensification of land use generally. As noted repeatedly, the floodplain is already almost completely occupied. In fact, the high degree of development is the major reason for the substantial reliance on floodwalls. The plan's primary purpose is to protect existing uses-- largely healthy industrial development--and several public utilities, including the water works, the power company, and the sewage treatment plant. Only in the redevelopment area is substantial growth envisioned. It is infeasible to propose moving the central business district to an alternate location, particularly since one of the justifications for the redevelopment plan was the hope that some portion of the riverfront could be recaptured for residential and recrea¬ tional uses. Comment 6 : The alternative referred to as the non-struc¬ tural combination should also be further examined. The statement indicates that the primary reason for the industrial occupation of the area--proximity to water transport and water power--no long applies. It is apparent that land use changes are in progress, which combined with appropriate municipal measures, could gradually lead to land use that is more compatible with this flood plain and that would naturally lead to a reduction of flood damages. Response : Since the decline of water transport, a major rail network has developed. Access to rail transport is now a substantial attraction of the area. More important, however, is the fact that the industries located in the flood plain have many millions of dollars invested in physical plants, storage areas and equipment. Any land use changes now under way are toward reuse of existing property by the same owners, not toward relocation. There is nothing to indicate an inclination of existing users to move away from their existing locations. There are no comparable sites in the City of Moline. - 77 - Comment 7: Specification Comments: Summary -- 3. a. Environmental Impacts -- It is stated in the Summary that "the proposed plan provides flood protection to 362 acres of the City" (p. i, par. 3A). Subtraction of that acreage from the 381 acres referred to on page 1, paragraph 1. 014 would suggest that only 19 acres of land within the limits of either the 200-year flood (design flood) or the standard project flood would be unprotected by the proposed project. However, measurements on Page 9 indicate that the unpro¬ tected area between 34th and 48th Streets alone ("Reach B") using either one of the foregoing interpretations of the 381- acre figure, would exceed 19 acres by a considerable margin. According to our measurements on Page 9, and using the definitions quoted above, more than 125 acres of urban flood plain within Moline would be unprotected by the pro¬ posed project, and more than 50 acres would be unprotected between 34th and 48th Streets alone. Kesponse: The Moline flood plain is 530 acres. Protection will be provided to 390 acres. Appropriate corrections have been made in the EIS. Comment 8 ; 1. Project Description - 1. 01 Introduction -- It is stated that "the flood plain is defined by the Standard Project Flood" (p. 1, par. 1. 014). As defined on Plate 9, that area extends from 100 to 200 feet further inland than the reachcf the 200-year flood in most places within the City of Moline, and between 41st and 42nd Streets the floodplain, as so defined, extends as much as 1, 100 feet further inland. It is stated in the draft environmental state¬ ment that "the total area of the Moline flood plain is approximately 381 acres" (p. 1, par. 1.014). However, it is stated in the General Design Memorandum that "the total area of the 200-year frequency Mississippi River flood plain in Moline is 381 acres" (p. 7, par. 1). One of these statements is evidently in error, as measurements on Plate 9 indicate that the area of the standard project flood is at least 100 acres larger than the 200-year flood, or design flood. - 78 - Response : See Response to Comment 7 above. Comment 9 : 2. Environmental Setting Without the Project 2.04 Land Use, 2. 048 Historic and Archaelogical Sites -- Some statements in paragraph 2. 0481 need clarification. Designation of a historic site by the Illinois Historical Society does make the protection provisions of Federal transportation statutes applicable to such a site, for example. Inclusion of a historic site on the National Register of Historic Places does not actually assure its preservation but does require that established Federal protection pro¬ cedures be adhered to. A copy of these procedures is en¬ closed for your use. It is the responsibility of the Federal sponspor of a project that might impact a historic site to consult with the State Historic Preservation Officer and then determine whether or not the site meets the National Register criteria. If he determined that it does, or believes that it might, he should then request a determination of eligibility from the Assistant Director, Office of Archeology and Preservation, National Park Service in accordance with the enclosed procedures. The comments in paragraph 2. 0483 should be expanded to state whether or not there are any historic properties in Moline eligible for addition tothe National Register. Response : The appropriate changes and additions have been made. Comment 10: 2. 049 Description of Floodplain -- The part of the floodplain lying between 34th and 48th Street has not been described in the Section (p. 29 - 31), nor has an adequate description of this reach (Reach B) been found elsewhere in the statement. Since protection of that section has been considered as one alternative, it would be helpful to provide a description of that area comparable to the other sections of the project. Response : Such a description has been added. Comment 11: 4. Probable Impact of the Proposed Action on the Environment, 4. 04 Land Use, 4. 044 Historic and Archaeological Sites -- It is our understanding (letter in Appendix 2 of the General Design Memorandum dated - 79 - February 7, 1975) that an archaeological reconnaissance survey of the project area and associated features has not been conducted. We further note (same letter) that Dr. Charles Bareis has recommended an intensive reconnaissance survey of the project area. We concur with this recommend¬ ation. The final environmental impact statement should present details relating to preparations for such a survey of all project features (including borrows, etc. ). Such a sur¬ vey should be conducted prior to any construction activities. Response : An archaeological survey has been completed. A summary of the findings have been included in the Final EIS. The full report is available for review by qualified persons at the Rock Island District Office in Rock Island. 9. 029 United States Department of the Interior, Fish and Wildlife Service Comment 1: The Fish and Wildlife Service is very con¬ cerned about the levee proposed for Sylvan Island, and the possibility of interference with the "Whlleye fishery in Sylvan Slough. (Summarized from testimony at 1 7 April 1975 public meeting.) Response: Meetings have been held with the Fish and Wild¬ life Service since the 17 April 197 5 public meeting, and the purpose and impacts of the Sylvan Island portion of the project further discussed. As noted in the EIS, no impact on the Walleye fishery is anticipated, with the possible exce pt ion of some short-term construction impacts. The levee on the island was selected in order to reduce the height of protection structures along the shoreline. A higher line of protection would impede fishermen access to the riverbank. The larger levee on the island is not expected to have serious long-term affects on its use for passive recreation purposes. 9.0210 United States Department of Transportation, Federal Highway Administration Comment 1: The proposed flood control project will affect local drainage systems and local transportation systems, but the proposed improvement appears to be well integrated into areawide planning. Response: No response necessary. - 80 - 9.0211 United States Environmental Protection Agency- Comment 1 ; We concur with the statement in the EIS that Sylvan Island is a significant natural resource that should be preserved, and we have no objections to the proposal to provide passive recreational use for the area. We also agree with the statement that the preservation of wet prairies is warranted; however, the EIS does not indicate if preservation of the wet prairie area will be part of the project. Response: Because the wet prairie lies in Reach B (the reach in which no structural measures are to be taken), no impact, either positive or negative, is anticipated as a result of this project. Comment 2 : The discussion of hydrologic impacts states that the redeposition of suspended alluvial sediments would occur which could potentially develop into extensive mud¬ flats. The Final EIS should discuss redeposition of sediment. Also, the EIS should discuss the impacts on water quality and aquatic life resulting from the potential mudflats caused by the project. In addition, the EIS should indicate any measures that will be taken to minimize adverse effects if extensive mudflats form. Response: Section 4. 0111 has been revised to clarify the project's impacts relative to riverbed scour and mudflat develop¬ ment. The placement of the levee at 16th Street will result in an unstable riverbed-cur rent-river capacity condition. Bottom sediments and the river load will respond to this inequilibrium by shifting and/or settling out. An equilib¬ rium will be reached, after which time little sediment shifting will occur. Some of the sediments picked up by the river near the toe may settle out immediately downstream, forming shoreline mudflats. "Extensive" was used inappropriately and inadvertently to describe these potential mudflats. If they form, they would be less extensive than the existing mudflats at 1 6th Street. - 81 - Comment 3: Care should be exercised during the levee con¬ struction stage so as not to adversely affect water quality. Benthic life can be preserved if sediment movement is held to a minimum. Extensive grading below normal river stage for placement of rip-rap should be avoided to hold sedimen¬ tation to a minimum. Response : No response necessary. See response to Department of Agriculture, Comment 1. 9. 0212 Illinois Department of Transportation, Water Resources Division (Governor's Task Force on Flood Control) Comment 1 : Landfill between 52nd Street and 55th Street Filling into the Mississippi River is ongoing by the City of Moline. State and Federal permits have been granted to the City to fill and straighten the river bank behind the 1912 Harbor Line. The fill is related to the project insofar as the Phase 1 GDM will provide recreational mitigation improvements to offset losses due to the levee route through Butterworth Park. Response : No response necessary. Comment 2 : Landfill between Arsenal Bridge and Memorial Bridge According to the Phase 1 GDM, the purpose of this fill is to create a riverside park as an esthetic and recrea¬ tional enhancement for the proposed apartment development in the urban renewal area. We pointed out the State ha s no quarrel -with recreation improvements per se. However, the fill is solely for the purpose of making land and the Division of Water Resources has no authority to issue a permit for making land under the Rivers and Lakes Act. I refer you to enclosed Attorney General opinion letter dated December 19, 1956 from then Attorney General Latham Castle and then Director Rosenstone. We suggest the only remedies are: 1) delete, redesign, or relocate the improvement so no landfill is required; or 2) secure specific authorization for the landfille from the General Assembly. Response: Because the Division of Water Resources comment was received after the Final EIS had gone to print, the issue of the landfill between Arsenal Island and Memorial Bridge has not yet been resolved and is - 82 - considered an unreconciled conflict. See Section 9. 04, page 100. It should be noted, however, that the purpose of the proposed fill would be to provide public access to the river in that area, rather than merely serving as a recreational amenity fbr the apartment development. Comment 3 : The Phase I GDM for Moline also includes upgrading the Sylvan Island Levee, to which we have cer¬ tain reservations. The line of protection incorporates a Federally-owned structure at each end of the Sylvan Island Levee. We are concerned that there will be dual main¬ tenance responsibilities for the proposed line of protec¬ tion which may lead to complications. The Sylvan Island line of protection is for the preservation of the Dam 15 pool and Federal interests, in lieu of shore¬ line protection on the left bank in the City of Moline. It is our position that the Federal Government should assume all maintenance of the Sylvan Island line of protection, especially the power house segments. Response : The Sylvan Island protection has the effect of reducing the height of protection needed along the Moline shoreline, not replacing it. The Sylvan Island and power dam plan permits the shoreline protection to be several feet lower than would be necessary without it, and thereby avoids a major barrier to the use of the shoreline by fishermen and other persons. The plan would also prevent the possible failure of the existing levee and power dams, and thus the i loss of the Dam 15 pool. The failure of the levee and/or power dams would deposit debris and sediment in the downstream areas, causing significant changes in existing flow patterns and impacting on existing aquatic ecosystems, including the important Sylvan Slough fishery. Furthermore, flow over the island would remove most topsoil and vege¬ tation, destroying the existing terrestrial ecosystem. As a result, the City of Moline selected the Sylvan Island plan as the least costly, both in economic and environmental terms. The Citv's maintenance responsibilities would be limited to those facilities constructed as part of the protection. The City would be responsible for the maintenance only of the Sylvan Island Levee, and the levees and floodwalls in front of the power plant. - 83 - ■ ■ BLANK . . ' - . ■ - Comment 4: Section 4. 0221 - Biological Impacts -- The described impacts on Sylvan Island suggest that not enough consideration has been given to the effects of the losses incurred. Certainly these impacts are in direct conflict with preservation of the island's "characteristics" as recommended in Section 2. 02212 of the draft EIS. Response : Since the completion of the draft EIS, the City of Moline has passed a resolution indicating that the island will eventually be developed for passive recreation. In light of this decision, it appears that the temporary construction impacts, and the eventual levee presence will not severely limit the use of the island for passive recreation. The quantity of vegetation and wildlife to be affected is quite small; normal mitigation and revegetation should replace the majority of the losses. Comment 5 : Section 4. 034 - Parkway Fill -- The final EIS should discuss the impacts of this fill on the existing aquatic environment. Response: The aquatic impacts associated with this levee were presented in the EIS. Please see Section 4.013 for a thorough discussion of the impacts to the aquatic biological resources, and specifically, Section 4. 0134. Comment 6 : Section 4.045 - Recreation -- This section indicates an accurate measurement of the long-term, positive and negative impacts of the levee construction on Sylvan Island must await decisions by the City of Moline has decided on the future use of Sylvan Island, and that, in general, they are interested in leaving the island in a natural state for passive recreation with vehicular access for supervision of recreation activities, for maintenance and improvements, for controlling access and movements of people, and for security of users. If this information is correct, then it should be possible to fully discuss the impacts of levee construction in detail in the final EIS. Response: The Final EIS has been revised to reflect the recent actions of the City of Moline. -8b- Comment 7: Section 6. 0321 - Estimate of Cost -- We note that you have deducted $670, 000 from the gross first costs for savings to the East Moline project. Since the East Moline project is not finalized, is this a logical assumption? Another question concerns Section 1.064, where it is stated that these costs reflect an anticipated savings to the flood protection project for East Moline. If this is true, should not the $670, 000 be subtracted from the East Moline project and not the Moline project? Response: The savings to the East Moline project are based on the final General Design Memorandum plan proposed for East Moline alone and on 1975 cost estimates. The GDM was submitted to the Office of the Chief of Engineers in March 197 5. The savings realized by elimination of the 55th Street tie-off is credited to Moline because the savings is available only if Moline Reach C is constructed. 9. 0214 Illinois Archaeological Survey Comment 1 : After carefully reviewing both documents, I find them to be unacceptable and totally inadequate with regard to describing and portraying the archaelogical re¬ source base to be potentially affected by the aforementioned projects. The inadequacy of these reports is even more discouraging in view of the fact that you have published a letter from me in the Design Memorandum which indicates what I think should be done in order to obtain adequate informa¬ tion with regard to any archaeological resources of the affected area. The statement in paragraph 4. 0043 on page 50 of the Draft EIS that "No archaeological sites have been identified in the project area by either the Illinois Archaeo¬ logical Survey for the Quad Cities Area Archaeological Society" applies to a records check only. In fact, our records indicate the pos sibility of one site which cannot be confirmed until it is actually checked on the ground. Since we have been assisting your office and other agencies with advice and information on the project since late in 1972, I find it difficult to understand why there has not been a concerted effort to examine the potentially impacted area with regard to any existing archaeological resources. The area is obvously a difficult one to examine because of extensive urbanization. However, until the potentially impacted area has been checked through a pedestrian survey, we cannot make any assessment on the archaeological resource base as to what is or is not present. -86- I therefore request again that a formal reconnaissance survey be undertaken by an affiliate member of the Illinois Archaeological Survey in subject area. Until the results of such a survey are known, what has been indicated archaeo- locally by your office in the aforementioned draft reports must be considered inadequate. Response: A pedestrian survey has been completed as requested, and a summary of the results included in the Final EIS. The full report is available for review by qualified persons at the Rock Island District Office in Rock Island. 9. 0215 Bi-State Metropolitan Planning Commission Comment 1 : We appreciate the recognition of our earlier comments with regard to the desirability of coordination between our 1995 Outdoor Recreation and Open Space Plan for Rock Island and Scott Counties and the design for this flood protection project. We note that provisions have been made to provide for a recreation facility along Reach C, as has been recommended by the Recreation Plan. We also would like to commend the additional recreation facilities proposed along Reach A, which recognized the existing recreational use of that area and also provide for a miti¬ gation of the negative esthetic effects of the project. Response: No response necessary. i Comment 2 : There appear to be three errors in the text of the draft of the environmental impact statement. On page 19, a reference is made to the population projections for the area prepared by our agency. It is noted that we have projected a population increase of 125, 000 for the area. The projection is for the entire three-county SMSA, so that the percentage increase would be less than the 50 percent figure noted in the text. Response: Information on population and population projects has been corrected in paragraphs 2. 0311 and 2. 0312. Comment 3: On page 36, it is noted that the solid waste generated in the City of Moline is deposited in a sanitary landfill "in the Village of Milan. " It is our understanding that this is not true. The City of Moline has a contractual -87- arrangement with a private hauler who operates a landfill facility in the unincorporated portion of Rock Island County near the Village of Andalusia. We also understand that the City has recently chosen not to renew this contractual arrangement, and will instead seek an arrangement with the City of Rock Island. Response: This information has been included in the Final EIS. Comment 4 : Finally, on page 70, the Bi-State Metropolitan Planning Commission is cited as a "citizen group. We suggest that the Bi-State should instead be classified as a "government agency, " as listed on page 69. Response : The Bi-State Metropolitan Commission is now properly listed as a "government agency". 9. 02 1 6 City of Moline Water Department Comment 1 : While the subject two documents are very thorough, I am concerned about the conclusions presented regarding the intake structure. Please note that our municipal water supply is obtained through this single intake structure. It is not practical to take it out of service, even to allow placement of an emergency 30" gate and gatewell on the intake line (Reference Phase I, General Design Memorandum Plate E). I am also concerned about opera¬ tional problems germane to an earthen dike across our frontage. I will appreciate a thorough evaluation of the items men¬ tioned above during the design phase. Response : The Corps of Engineers would continue to work closely with the Water Department during the Phase II studies and during construction to assure that a safe and satisfactory solution for the intake structure and any oper¬ ational problems will be developed. 9. 0217 No Comments Received Senator Charles Percy Senator Adlai Stevenson, III Representative Clarence Darrow Governor Daniel Walker US Coast Guard -88- US Department of Health, Education and Welfare US Geological Survey Federal Power Commission Federal Railroad Commission Upper Mississippi River Basin Commission Water Resources Council Illinois Board of Economic Development Illinois Coordinator of Environmental Quality Illinois Department of Agriculture Illinois Department of Business and Economic Development Illinois Department of Conservation Illinois Department of Transportation Illinois Division of Waterways Illinois Natural Resources Development Board Illinois State Claringhouse State Conservationist, Soil Conservation Service Mayor of East Moline Moline City Engineering Department Moline City Planning Department Moline Parks and Recreation Board Moline Water Pollution Control Department Rock Island County Board of Supervisors -89- 9. 03 CITIZEN GROUPS 9. 031 Little organized support or opposition to the proposed Moline flood protection project has been evinced by any citizen groups. Only one environmental group has expressed concern over the project, specifically regarding the destruction of habitat for migrating and nesting birds on Sylvan Island. 9. 032 Two organizations offered specific comments on the Draft EIS. The excerpts listed below are followed by responses to each comment; references to responses to similar comments made else¬ where are indicated where appropriate. 9. 033 Augustana College Comment 1 : p. 4, 1. 041 The idea of the small park at this location seems to be a good one. The area is a very popular fishing spot. Yet, the present condition is lacking both in esthetic appeal and in provision of basic facilities. The proposal would enchance the shoreline in this area. At the same time, one of the fishermen along that section noted that any protrusion into the water, such as the proposed fishing docks, might have a negative effect on the walleye fishing. While I am not a biologist and cannot speak to the accuracy of this perception, you might consider it or check it out. Response: The long-term effect of the fishing piers, as depicted, on the game fish populations would be negligible. Short-term effects, associated with siltation caused by the construction process, would be experienced but would chiefly cause fish to avoid the area of disturbance. The effects of siltation on the fishery has been discussed in the EIS. Comment 2 : pp. 21-24, 2. 04 Apparently, the detailed land use data gathering for and used in the environmental inven¬ tory was not used. Why? Our data was based on block-by¬ block data gathering from direct field observation in 1973. In fact, one reason for the detailed field work was the admission by Bi-State that their land use map for Moline was at too general a scale to be realiably accurate, particularly since it was prepared three years earlier. The results are not significantly different; however, it would seem that the most recent and most detailed data would be used. -90- Response : Plate 5 is an updated version of the land use map prepared by Augustana College in 1973. In addition, land uses along the riverfront, gathered by the consultant during numerous pedestrian surveys, are described in Section 2. 049- As Augustana College did not prepare any projections of land use during their 1973 study, information on land use projections prepared by the Bi-State Metropolitan Planning Commission was used for Tables 2-1 and 2-2. Comment 3 : pp. 28-29, 2. 048 As is so often the case when considering historic features, you have identified only the exceptional or unique buildings. Increasingly, among those involved in historic preservation, there is interest in areas or districts of historic interest. Furthermore, this kind of interest is directed not only for areas which have great significance, but also for areas which simply reflect a particular period including the very commonplace or every¬ day features. For example, within this project area, you have the historic core of the first built-up Moline settlement and, on Sylvan Island, you have the remains of the old Republic Steel Plant which in terms of its steel-making process and its site location is representative of a turn-of-the-century steel plant. Also, why did you limit the historic information to places identified by the Historic Landmarks Survey? In our environmental inventory, I as a historical geographer and two very good history students collected consider¬ able extra data on this area and included in in the inventory. Thus, I urge you to review the environmental inventory historic section and to expand this section in the EIS. This data may suggest even more reasons to protect the area under consideration. Response: It was not possible to ascertain from the environ¬ mental inventory which sites or structures were of historical significance and whether the landmarks listed represented the views of an historical society or an individual. The environmental inventory does not discuss the importance of historic areas or districts within the project area. To correct this oversight, the Rock Island County Historical Society and the Rock Island County Historical Society Museum have been contacted. Their views are recorded in the Final EIS and documented under the section. Letters of C oordination. -91- Comment 4: Though you have cited the 197 3 Park and Recre¬ ation Board plan for Sylvan Island, it should be noted that the Moline Citizens Advisory Committee unanimously recommended that Sylvan Island be kept free of automobile traffic and that it be developed as a fishing, historic, and natural park. (By developed, they meant in this case doing basic clean-up and installing a fewbasic recreation use facilities, but basically leaving the island in its present passive state. ) I am enclosing for your reference a copy of "Sylvan Island. A Century of Choice" which concludes with some recommend¬ ations for this island. With a few minor exceptions it was this proposal which the Citizen Advisory Committee recommended. If such low intensity and basically undeveloped use and condition of the island were adopted, it would put your decision to construct a levee on its northern flank in a somewhat different light. Since the condition of the bridge is a key issue, I hope that construction of a bridge is not planned as part of the project and hidden somewhere in the project's costs. Response: The decision to improve the levee on the northern side of Sylvan Island was not affected by the use and/or condition of the island. As explained in the report, the need to retain the Moline pool upstream of the island and the desire of the City to reduce the height of protection along the shoreline were the primary justifications for the revised plan. In point of fact, the island will still flood from back¬ water flow, as it has in the past. There are no plans for bridge construction or improve¬ ment in the proposed flood control plan. See response to Illinois Department of Conservation Comment 4. Comment 5 : p. 50, 4. 0452 This paragraph seems accurate in describing where things stand. In fact, it is more accurate that the section 3. 018, p. 37, which I have just discussed, in the sense that it says "if the decision is made to extend an automobile bridge. . . " However, since the question has not been decided conclusively, which use did you use when you computed your benefit-cost ratio for this part? and when you estimated the environmental impact? -92- Response: Benefits do not derive from Sylvan Island, regard¬ less of its relative development. As noted in the EIS and elsewhere, the island will still be inundated from time to time. Benefits are calculated for a flood damage reduction in the Moline flood plain; since flood damage would continue to occur on the island, it does not figure in the computation of benefits. Environmental impact was estimated for the island as it is, and the passive development currently envisioned by the City of Moline. Comment 6: p. 63, 6. 0591 According to the standard guide¬ lines for proper use of benefit-cost, B/C ratios are to be computed for each alternative and, then, the alternative with the best B/C ratio is to be selected. Yet, you state "individual ratios have not been computed; comparison with those prepared for Alternative 1, 2 and 3 would be meaning¬ less. " How can the public judge your proposal and the individual sections of the project area and whether or not some alternatives are meaningless if you do not even compute the ratios? Response : The benefit-cost ratios for non-structural meas¬ ures, such as evacuation and floodproofing are much less than 1. 0 and, therefore, these measures cannot be carried forward for participation by the Federal government. The evacuation of Reaches B and C would cost an estimated $40, 000, 000. The annual cost would be $2, 360, 000. The annual benefits for existing conditions to evacuate the total flood plain in Reaches B and C is $80, 000. The resulting benefit to cost ratio is 0. 03. Paragraph 6. 0574 points out that the cost of filling existing land to the 100-year flood level is $2, 025, 000 for Reach B and $2, 250, 000 for Reach C. The annual costs are $119, 500 and $132, 000 respectively. The annual benefits for the 100- year frequency flood are $24, 500 and $26, 500 resulting in benefit to cost ratios of 0. 2 and 0. 2 respectively. Flood¬ proofing measures would include additional costs to raise buildings, utilities, etc. , which would further reduce the benefit-cost ratio. Evacuation and floodproofing measures in Reach A would have benefit-cost ratios similar to Reaches B and C. -93- Flood insurance would have an estimated first cost of $644, 500 as pointed out in paragraph 6. 0573. The annual flood damage, however, would remain and, therefore, there are no flood damage reduction benefits. Flood plain regulations would prevent most future flood damages to new buildings up to the 100-year frequency flood level. Existing annual flood damages would remain, however, and floods greater than the 100-year flood event could also cause damage to new buildings. The costs of implementing regulations are small but tangible flood reduction benefits are zero. Comment 7 : p. 68 Why is there no mention of the perception studies carried out under the environmental inventory. An interview survey of the twenty largest firms of the project area and a 30 percent block-by-block sample of residences was carried out using the questionnaire developed by the International Geographical Union's Commission on Man and the Environment. It was another kind of public partici¬ pation which should be noted. It is my suspicion that this data basically was ignored. Certainly, none of the findings of these interviews were reported in the EIS. Response; The perception studies are now documented in 9.013. Comment 8 : p. 68, 9. 013 Having talked with many people who use Sylvan Island, I have some questions about the reliability of the last sentence: "support for some type of flood protection was expressed by a broad cross-section of the citizenry. " I do not doubt that some expressed interest in the idea of flood protection when presented with the alternative. However, it repeatedly has been my impres¬ sion based on our surveys that flood protection for the island is a low priority item in the minds of those who use the island. Thus, I would like to know who this "broad cross section" is and how it was measured. Response : This paragraph discussed issues of flood protec¬ tion for the entire flood plain, not just Sylvan Island. The wording has been changed (it is also now 9. 014) to clarify the statement. The "broad cross-section" is detailed in -94- the Augustana environmental inventory and supplemented by additional surveys completed in 1974. Comment 9 ? On the Sylvan Island question my overall con¬ clusion would support the criticism made by Mr. Kulp at the hearing. There would be considerable disturbance of the natural ecology of this island. There seems to be little significant reason for building the levee in this section; at least, any reasons were not stated clearly in this report. If the island is left in a natural, minimally-developed state, I find it hard to believe that you could arrive at such a high B/C ratio for this section. If you would be interested in hearing more about this part of the project area, I would be happy to discuss it with you and, even better, to walk this area with you. Response: No comment necessary. See response to Comment 5 above. 9. 034 Chicago, Rock Island and Pacific Comment 1 : We tak no exception to the draft of the environ¬ mental impact statement. We feel that the project will improve the environment of the protected area. Response: No response necessary. 9. 035 Moline Consumers Company l Comment 1: Moline Consumers indicated that the proposed alignment of the levee and floodwall on their property would require curtailment of existing and planned docking facilities. (Summarized from comments made at 17 April 197 5 public meeting). Response: After the public meeting, representatives of the Corps and City of Moline met with representatives of Consumers Company and mutually developed an alternate alignment of levee and floodwall through the Consumers property. This alternate plan has been rejected by the company management. Coordination is continuing between Consumers Company, the Corps and the City of Moline to resolve the conflict. -95- 9. 036 No Comments Received American Canoe Association AFL-CIO Central Midwest Audubon Society- Coalition on American Rivers First Neighborhood Redevelopment Corporation Illinois Agricultural Association Illinois Audubon Society Izaak Walton League Illinois Wildlife Federation League of Women Voters, State of Illinois, Quad Cities Chapters Moline Chamber of Commerce North Central Audubon Council Quad Cities Area Archaeological Society Sierra Club Upper Mississippi Coservation Committee Upper Mississippi Flood Control Association American Air Filter Company Burlington Northern Inc. Chicago, Milwaukee, St. Paul Pacific Railroad Chippewa Motor Freight Company Davenport, Rock Island & Northwestern Railway Frank Foundries Henry Engineering Company International Harvester Company Iowa - Illinois Gas &c Electric Company John Deere, Inc. Kohler and Company McLaughlin Body Company Montgomery Elevator Company Strombech Company Unit Step Company Northwestern University, Center for Urban Studies Saint Louis University, Institute of Environmental Studies University of North Dakota, Director of Ecological Studies -96- 9. 04 UNRECONCILED CONFLICTS 9.041 In June 1975 the State of Illinois, Division of Water Resources, Department of Transportation, provided an opinion that a State per¬ mit could not be issued under existing State statutes concerning the proposed fill in addition to the necessary levee for the area be¬ tween the Arsenal Bridge and the Memorial Bridge. The proposed fill is considered by the State as solely for the purpose of making land for which the Division of Water Resources has no permit authority under the Rivers and Lakes Act. 9. 042 The opinion of the State of Illinois regarding the proposed fill will require that coordination be continued with the City of Moline and the State of Illinois during the Phase II Design Memo¬ randum study to consider the remedies suggested by the State. These remedies are: Delete, redesign or relocate the improvement so no land¬ fill is required; or secure specific authorization for the landfill from the General Assembly. 9. 043 Moline Consumers Company indicated at the public meeting held on 17 April 1975 that the proposed alignment in the draft Phase I GDM would require curtailment of existing and planned docking facilities. After the public meeting, representatives of the Corps, and City of Moline met with representatives of the Consumers Company and mutually developed an alternate alignment of levee and floodwall through the Consumers property. The alternative plan has been rejected by the company management. Coordination is continuing between Consumers Company, the Corps, and the City of Moline to resolve the conflict. -97- Public Meeting Attendees: Greg Gackle Moline Daily Dispatch N. R. Lundeen, Vice Presient Moline Consumers Company Claranne Perkins Quad City Times Mayor Bill Glynn Bettendorf, Iowa Mrs. Frank Marquis Housewife Wilma Rendleman, Office Manager Representative Ben Polk Aubrey H. Robson Resources Consultant Izaak Walton League of American Bob Borth, Special Assistant Congressman Thomas Railsback Mark Bouljon, Staff Senator Don Wooten Jim L. Fox Blackhawk Chapter FWLA Albert L. Kellerstrass, Engineer State of Illinois, Division of Water Resources John K. Freund, Engineer Deere k Company Clayton Lloyd, Principal Planner Bi-State Metropolitan Planning Ray Choudry, Lawyer Deere & Company C ommission Charles Kulp, Area Supervisor N. E. Horst American Air Filter Co. U. S. Fish k Wildlife Service Teresa DeBates Paul D. Boyle, Plant Engineer American Air Filter Co. U. S. Fish k Wildlife Service Mary W. Dozier, Architect U. S. Army Corps of Engineers S* Dudley A. Stevenson, General Manager Frank Foundries Omaha District D. R. Scurlocke, Electrical Engineer U. S. Army Corps of Engineers Mrs. Wilma E. Maloney Henry Engineering Company Eldon H. Hansen, Plant Manager Deere & Company Mr. k Mrs. Beder Wood Beder Wood's Sons Co. , Inc. Bruce Klein U. S. Fish Wildlife Service William C. Rosborough Moline Tool Company -98- Public Meeting Attendees: (continued) Vince P. Fulton, Plant Engineer International Harvester R. D. Schaeffer, Vice President Montgomery Elevator Company Clarence H. Koepke Iowa-Illinois Gas & Electric Company R. D. G. D. Peel Engineering Department C. M.St.P. &P.R.R. Co. & D. R.I. &N.W.R. R. W. H. Geuther, Assistant Trainmaster Burlington Northern, Inc. Joe M. Arrington, Assistant Superintendent Burlington Northern, Inc. J. F. Vey, Division Engineer Burlington Northern, Inc. L. B. Grantz, Superintendent Water Department City of Moline Jean Marquardt, Assistant Superintendent Water Department City of Moline Raymond Nash, Park Planner Moline Park E. Harold Swanson, City Planner City of Moline Roy E. Lear, Alderman City of Moline Myrtle "Pat" Johnson, Alderman City of Moline -99- . LETTERS OF COMMENT STATEMENT OF THE HONORABLE TOM RAILSBACK PUBLIC MEETING MOLINE FLOOD CONTROL PROJECT MOLINE, ILLINOIS APRIL 17, 1975 I am pleased to comment on the recently released Phase I Design Memorandum for a Mississippi River flood control project at Moline, Illinois. As we all know, the Mississippi is one of the world's great rivers and one of America's most important and beautiful resources. It plays a vital economic and social role in the lives of millions of Americans . Yet for all its beauty and significance, we also know that it has been the source of devastation and destruction when its waters have overflowed its banks and ravaged the communities and farm lands along its more than two thousand mile length. The threat posed by the Mississippi to the safety and well-being of the residents of the Quad Cities region of Iowa and Illinois is all too familiar to those in attendance at this meeting. In recognition of this threat and at the urging of citizens and community leaders, I have r - 401 - 2 - 2-2 appeared before the committees of the Congress seeking Federal assistance for needed flood control projects. We have been fortunate to have received authorization for several projects including this Moline project. The Design Memorandum for Moline is, as I understand it, an updated study by the Corps of Engineers of the Plan previously authorized by the Congress in 1972. Its examination of the alternative methods for flood control in the Moline area and recommendation for a structural system of levees and floodwalls appears satisfactory and should be the basis for actually beginning construction on the project in the near future. I will reserve my comments, therefore, on a matter which is spoken to in the report and which is of importance and needs special emphasis. Of particular concern to me, and I have written and met with the Corps to express my views, is the need to preserve as best as possible, the beauty of the river and where feasible to provide recreational - 102 - 3-3-3 facilities which may be enjoyed by the citizens of the Quad Cities. Levees and floodwalls do not produce a natural setting and are bound to disturb some areas of aesthetic quality. It is imperative that everything be done to make the physical setting acceptable in appearance, consistent with effectiveness and economy of construction. Colonel Johnson described preliminary plans for beautification to me and assured me that flood control projects include treatment for the abatement of unsightly aspects and that it is Corps policy to conserve and enhance the environment associated with all its projects. Specifically, with respect to the plan for Moline, Colonel Johnson outlined a program which would include grading and seeding of borrow areas, spoil areas, levee slopes (unless riprap is required) and all disturbed areas. In addition, there is to be plantings to screen unsightly areas, to screen areas where levees and walls intersect and to break up long reaches of levees or walls. - 103 - 4-4-4 We also discussed construction of pedestrian paths and steps over the levee and walls at selected locations, riprap fishing piers, a boat launching ramp, and park and picnic areas. The Moline flood control project and the other flood control projects in the Quad Cities area, offer a tremendous and unique opportunity -- to provide the kind of protection essential to safeguard citizens and businesses of the community and, with leadership and planning, to improve the quality of life through beautification and recreational developments. The General Design Memorandum sets out a positive and responsible standard for beautification. It is my hope this guideline and the proposed plans described by Colonel Johnson will be the reality when the Moline flood project is completed. - 104 - Advisory Council On Historic Preservation 15 2 2 K Street N.W. Suite 430 Washington D.C. 20005 May 8, 1975 Colonel Walter H. Johnson District Engineer Rock Island District,Corps of Engineers U. S. Department of the Army Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: This is in response to your request of April 2, 1975 for comments on the environmental statement for the proposed Plan for Mississippi River Flood Control at Moline, Illinois. Pursuant to its responsibilities under Section 102(2)(C) of the National Environmental Policy Act of 1969, the Advisory Council on Historic Preservation has determined that your draft environmental statement is inadequate regarding our area of expertise, as it does not contain sufficient information to enable the Council to comment substantively. Please furnish additional data indicating: Compliance with Executive Order 11593 ’’Protection and Enhancement of the Cultural Environment" of May 13, 1971 1. In compliance with Section 1(3) of the Executive Order and §800.4(a) of the Advisory Council’s "Procedures for the Protection of Historic and Cultural Properties" (36 C.F.R. Part 800)[copy enclosed], the Corps of Engineers should identify all historical and archeological properties located within the area of the undertaking’s potential environmental impact that are eligible for inclusion in the National Register of Historic Places. In the case of archeological resources, it may be necessary for the Corp to undertake an archeological survey of the area to adequately comply with the provisions of this section. 2. In the event eligible properties are identified in the area of the undertaking's potential environmental impact, the Corp should comply with the remaining provisions of §800.4. It should be emphasized that for the purposes of the Council’s procedures, "a Federal, federally assisted, or federally licensed undertaking shall be considered to have an effect on -105- Thc Council is an independent unit of the Exccntii c Brunch of the Federal Government charged by the Act of October 1 5, 796A to adi isc the V resident and Congress in the field of Historic Preservation. property eligible for inclusion in the National Register when any condition of the undertaking causes or may cause any change, beneficial or adverse, in the quality of the historical, architectural, archeological or cultural character that qualified the property under the National Register criteria"(36 C.F.R. Part 800.8). Should you have any questions or require any additional assistance, please contact Jordan Tannenbaum of the Council staff at 202/254-3380. Sincerely yours John D. McDermott Director, Office of Review and Compliance Enclosure -106 UNITED STATES DEPARTMENT OF AGRICULTURE SOIL CONSERVATION SERVICE _ P.0. Box 678, Champaign, Illinois 61820 May 19, 1975 Colonel Walter H. Johnson District Engineer U. S. Army Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: The draft environmental statement for the Mississippi River Local Flood Protection Project at Moline, Rock Island County, Illinois, that was addres¬ sed to the Soil Conservation Service on April 2, 1975, has been reviewed as requested. We submit our comments for your consideration. Care should be taken to control erosion during and following construction. The levees should be vegetated immediately following construction. If permanent seedings cannot be made at construction time, temporary seedings should be considered. Consideration should be given to developing borrow areas for fish and wildlife use. The Soil Conservation Service technical guide for the Rock Island Field Office includes standards and specifications for critical area seeding and woody plantings which may be helpful. If you have questions relating to the soils, vegetative seedings, fertili¬ zation, woody plantings, borrow area development, drainage, erosion control or any soil and water conservation practices, don't hesitate to get in touch with Mr. Emil E. Kubalek, District Conservationist, Soil Conservation Service, 2301 29th Street, Moline, Illinois 61265, telephone 309-794-9255 (FTS). We appreciate the opportunity to review and comment on the proposed project. Sincerely, Daniel E. Holmes State Conservationist -107 United States Department of Agriculture Fdrest Service NORTHEASTERN AREA, STATE AND PRIVATE FORESTRY 6816 Market Street, Upper Darby, Pa. 19082 215-597-3772 8400 May 15, 1975 Colonel Walter H. Johnson District Engineer, Corps of Engineers Rock Island District Clock Tower Building Rock Island, Illinois 61201 Refer to: NCRED-PB, Draft Environmental Impact Statement, Flood Prevention, Moline, Illinois Dear Colonel Johnson: The above Statement was referred to us for review and comment by our Milwaukee office as no National Forest lands are involved. The importance of vegetation in this highly developed area is greater than normal because of its scarcity. For aesthetic purposes and reduction of siltation, all reasonable efforts should be made to replace vegetation removed during construc¬ tion as quickly as possible. Thank you for giving us the opportunity to review and comment on the Draft. - 108 - £B'C4V) i whether the Criteria are met, the Agency Official shall request, in writing, an opin¬ ion from the Secretary of the Interior respecting the property’s eligibility for inclusion in the National Register. The Secretary of the Interior’s opinion re¬ specting the eligibility of a property for inclusion in the National Register shall be conclusive for the purposes of these procedures. (b) Determination of effect. For each property included in or eligible for in¬ clusion in the National Register that is located within the area of the undertak¬ ing’s potential environmental impact, the Agency Official, in consultation with the State Historic Preservation Officer, shall apply the Criteria of Effect, set forth in Section 800.8, to determine whether the undertaking has an effect upon the prop¬ erty. Upon applying the Criteria and finding no effect, the undertaking may proceed. The Agency Official shall keep adequate documentation of a determina¬ tion of no effect. (c) Effect established. Upon finding that the undertaking will have any ef¬ fect upon a property included in or eli¬ gible for inclusion in the National Regis¬ ter, the Agency Official, in consultation with the State Historic Preservation Offi¬ cer, shall apply the Criteria of Adverse Effect, set forth in §800.9, to determine whether the effect of the undertaking is adverse. (d) Finding of no adverse effect. Upon finding the effect not to be adverse, the Agency Official shall forward adequate documentation of the determination, in¬ cluding evidence of the views of the State Historic Preservation Officer, to the Executive Director for review. Un¬ less the Executive Director notes an ob¬ jection to the determination within 45 days after receipt of adequate documen¬ tation, the Agency Official may proceed with the undertaking. (e) Finding of adverse effect. Upon finding the effect to be adverse or upon notification that the Executive Director does not accept a determination of no adverse effect, the Agency Official shall: (1) Request, in writing, the comments of the Advisory Council; (2) notify the State Historic Preservation Officer of this request; (3) prepare a preliminary case report; and (4) proceed with the consul¬ tation process set forth in Section 800.5. (f) Preliminary case report. Upon re¬ questing the comments of the Advisory Council, the Agency Official shall .provide the Executive Director and the State His¬ toric Preservation Officer with a pre¬ liminary case report, containing all relevant information concerning the undertaking. The Agency Official shall obtain such information and material from any applicant, grantee, or other beneficiary involved in the undertaking as may be required for the proper eval¬ uation of the undertaking, its effects, and alternate courses of action. § 800.5 Consultation process. (a) Response to request for comments. Upon receipt of a request for Advisory Council comments pursuant to Section 800.4(e), the Executive Director shall ac- FEDERAL REGISTER, VOL. 39, NO. 18—FRIDAY, JANUARY 25, 1974 - 118 - 3368 RULES AND REGULATIONS knowledge the request and shall initiate the consultation process. (b) On-site inspection. At the request of the Agency Official, the State Historic Preservation Officer, or the Executive Di¬ rector, the Agency Official shall conduct an on-site inspection with the Executive Director, the State Historic Preservation Officer and such other representatives of national, State, or local units of govern¬ ment and public and private organiza¬ tions that the consulting parties deem appropriate. (c) Public information meeting. At the request of the Agency Official, the State Historic Preservation Officer, or the Ex¬ ecutive Director, the Executive Director shall conduct a meeting open to the pub¬ lic, where representatives of national, State, or local units of government, rep¬ resentatives of public or private organi¬ zations, and interested citizens can re¬ ceive information and express their views on the undertaking, its effects on his¬ toric and cultural properties, and alter¬ nate courses of action. The Agency Of¬ ficial shall provide adequate facilities for the meeting and shall afford appropriate notice to the public in advance of the meeting. (d) Consideration of alternatives. Upon review of the pending case and subsequent to any on-site inspection and any public information meeting, the Ex¬ ecutive Director shall consult with the Agency Official and State Historic Pres¬ ervation Officer to determine whether there is a feasible and prudent alterna¬ tive to avoid or satisfactorily mitigate any adverse effect. (e) Avoidance of adverse effect. If the Agency Official, the State Historic Pres¬ ervation Officer, and the Executive Di¬ rector select and unanimously agree upon a feasible and prudent alternative to avoid the adverse effect of the undertak¬ ing, they shall execute a Memorandum of Agreement acknowledging avoidance of adverse effect. This document shall be forwarded to the Chairman for review pursuant to Section 800.6(a). (f) Mitigation of adverse effect. If the consulting parties are unable to unani¬ mously agree upon a feasible and prudent alternative to avoid any adverse effect, the Executive Director shall consult with the Agency Official and the State His¬ toric Preservation Officer to determine whether there is a feasible and prudent alternative to satisfactorily mitigate the adverse effect of the undertaking. Upon finding and unanimously agreeing to such an alternative, they shall execute a Memorandum of Agreement acknowledg¬ ing satisfactory mitigation of adverse ef¬ fect. This document shall be forwarded to the Chairman for review pursuant to Section 800.6(a). (g) Memorandum of Agreement. It shall be the responsibility of the Execu¬ tive Director to prepare each Memoran¬ dum of Agreement required under these procedures. In preparation of such a document the Executive Director may request the Agency Official to prepare a proposal for inclusion in the Memoran¬ dum, detailing actions to be taken to avoid or mitigate the adverse effect. (h) Failure to avoid or mitigate ad¬ verse effect. Upon the failure of consult¬ ing parties to find and unanimously agree upon a feasible and prudent alternative to avoid or satisfactorily mitigate the ad¬ verse effect, the Executive Director shall request the Chairman to schedule the undertaking for consideration at the next Council meeting and notify the Agency Official of the request. Upon notification of the request, the Agency Official shall delay further processing of the undertak¬ ing until the Council has transmitted its comments or the Chairman has given notice that the undertaking will not be considered at a Council meeting. § 800.6 Council procedures. (a) Review of Memorandum of Agree¬ ment. Upon receipt of a Memorandum of Agreement acknowledging avoidance of adverse effect or satisfactory mitigation of adverse effect, the Chairman shall in¬ stitute a 30-day review period. Unless the Chairman shall notify the Agency Official that the matter has been placed on the agenda for consideration at a Council meeting, the memorandum shall become final: (1) Upon the expiration of the 30-day review period with no ac¬ tion taken; or (2) when signed by the Chairman^, Memoranda duly executed in accordance with these procedures shall constitute the comments of the Advisory Council. Notice of executed Memoranda of Agreement shall be published in the Federal Register monthly. (b) Response to request for considera¬ tion at Council meeting. Upon receipt of a request from the Executive Director for consideration of the proposed undertak¬ ing at a Council meeting, the Chairman shall determine whether or not the un¬ dertaking will be considered and notify the Agency Official of his decision. To assist the Chairman in this determina¬ tion, the Agency Official and the State Historic Preservation Officer shall pro¬ vide such reports and information as may be required. If the Chairman de¬ cides against consideration at a Council meeting, he will submit a written sum¬ mary of the undertaking and his decision to each member of the Council. If any member of the Council notes an objec¬ tion to the decision within 15 days of the Chairman’s decision, the undertak¬ ing will be scheduled for consideration at a Council meeting. If the Council members have no objection, the Chair¬ man shall notify the Agency Official at the end of the 15-day period that the undertaking may proceed. (c) Decision to consider the undertak¬ ing. Upon determination that the Council will consider an undertaking, the Chair¬ man shall: (1) Schedule the matter for consideration at a regular meeting no less than 60 days from the date the re¬ quest was received, or in exceptional cases, schedule the matter for considera¬ tion in an unassembled or special meet¬ ing; (2) notify the Agency Official and the State Historic Preservation Officer of the date on which comments will be con¬ sidered; and (3) authorize the Executive Director to prepare a case report (d) Content of the case report. For purposes of arriving at comments, the Advisory Council prescribes that certain reports be made available to it and ac¬ cepts reports and statements from other interested parties. Specific informational requirements are enumerated below. Generally, the requirements represent an explication of elaboration of principles contained in the Criteria of Effect and in the Criteria of Adverse Effect. The Council notes, however, that the Act recognizes historical and cultural re¬ sources should be preserved “as a living part of our community life and develop¬ ment.’’ Consequently, in arriving at final comments, the Council considers those elements in an undertaking that have relevance beyond historical and cultural concerns. To assist it in weighing the public interest, the Council welcomes in¬ formation not only bearing upon physi¬ cal, sensory, or esthetic effects but also information concerning economic, so¬ cial, and other benefits or detriments that will result from the undertaking. (e) Elements of the case report. The report on which the Council relies for comment shall consist of: (1) A report from the Executive Di¬ rector to include a verification of the legal and historical status of the prop¬ erty; an assessment of the historical, architectural, archeological, or cultural significance of the property; a statement indicating the special value of features to be most affected by the undertaking; an evaluation of the total effect of the undertaking upon the property; a critical review of any known feasible and pru¬ dent alternatives and recommendations to remove or mitigate the adverse effect; (2) A report from the Agency Official requesting comment to inolude a general discussion and chronology of the pro¬ posed undertaking; when appropriate, an account of the steps taken to comply with section 102(2) (A) of the National Environmental Policy Act of 1969 (83 Stat. 852, 42 U.S.C. 4321): an evaluation of the effect of the undertaking upon the property, with particular reference to the impact on the historic, architectural, archeological and cultural values; steps taken or proposed by the agency to take into account, avoid, or mitigate adverse effects of the undertaking; a thorough discussion of alternate courses of action; and, if applicable and available, a copy of the draft environmental statement prepared in compliance with section 102 (2) (C) of the National Environmental Policy Act of 1969; (3) A report from any other Federal agency having under consideration an undertaking that will concurrently or ultimately affect the property, including a general description and chronology of that undertaking and discussion of the relation between that undertaking and the undertaking being considered by the Council; (4) A report from the State Historic Preservation Officer to include an assess¬ ment of the significance of the property; an identification of features of special value; an evaluation of the effect of the undertaking upon the property and its specific components; an evaluation of FEDERAL REGISTER, VOL. 39, NO. 18—FRIDAY, JANUARY 25, 1974 RULES AND REGULATIONS 3369 known alternate courses of action; a dis¬ cussion of present or proposed participa¬ tion of State and local agencies or orga¬ nizations in preserving or assisting in preserving the property; an indication of the support or opposition of units of gov¬ ernment and public and private agencies and organizations within the State; and the recommendations of his office; (5) A report by any applicant or po¬ tential recipient when the Council con¬ siders comments upon an application for a contract, grant, subsidy, loan, or other form of funding assistance, or an appli¬ cation for a Federal lease, permit, license, certificate, or other entitlement for use. Arrangements for the submission and presentation of reports by applicants or potential recipients shall be made through the Agency Official having juris¬ diction in the matter; and (6) Other pertinent reports, state¬ ments, correspondence, transcripts, min¬ utes, and documents received by the Council from any and all parties, public or private. Reports submitted pursuant to this section should be received by the Council at least two weeks prior to a Council meeting. (f) Coordination of case reports and statements. In considerations involving more than one Federal department, either directly or indirectly, the Agency Official requesting comment shall act as a coordinator in arranging for a full as¬ sessment and discussion of all interde¬ partmental facets of the problem and prepare a record of such coordination to be made available to the Council. At the request of the Council, the State Historic Preservation Officer shall notify appro¬ priate governmental units and public and private organizations within the State of the pending consideration of the under¬ taking by the Council, and coordinate the presentation of written statements to the Council. (g) Council meetings. The Council does not hold formal hearings to consider comments under these procedures. Two weeks notice shall be given, by publica¬ tion in the Federal Register, of all meet¬ ings involving Council review of Federal undertakings in accordance with these procedures. Reports and statements will be presented to the Council in open ses¬ sion in accordance with a prearranged agenda. Regular meetings of the Coun¬ cil generally occur on the first Wednes¬ day and Thursday of February, May, Au¬ gust and November. (h) Oral statements to the Council. A schedule shall provide for oral state¬ ments from the Executive Director; the referring Agency Official presently or potentially involved; the applicant or potential recipient, when appropriate; the State Historic Preservation Officer; and representatives of national, State, or local units of government and public and private organizations. Parties wishing to make oral remarks shall submit written statements of position in advance to the Executive Director. (i) Comments by the Council, The comments of the Council, issued after consideration of an undertaking at a FEDERAL Council meeting, shall take the form of a three-part statement, including an introduction, findings, and a conclusion. The statement shall include notice to the Agency Official of the report required under section 800.6(j) of these proce¬ dures. Comments shall be made to the head of the Federal Agency requesting comment or having responsibility for the undertaking. Immediately thereafter, the comments of the Council will be for¬ warded to the President and the Con¬ gress as a special report under authority of section 202(b) of the Act and pub¬ lished as soon as possible in the Federal Register. Comment shall be available to the public upon receipt of the comments by the head of the Federal agency. (j) Report of agency action in response to Council comments. When a final deci¬ sion on the undertaking is reached by the Federal Agency, the Agency Official shall submit a written report to the Council containing a description of actions taken by the Federal Agency subsequent to the Council’s comments; a description of ac¬ tions taken by other parties pursuant to the actions of the Federal Agency; and the ultimate effect of such actions on the property involved. The Council may request supplementary reports if the na¬ ture of the undertaking requires them. (k) Records of the Council. The records of the Council shall consist of a record of the proceedings at each meeting, the case report prepared by the Executive Director, and all other reports, state¬ ments, transcripts, correspondence, and documents received. (l) Continuing review jurisdiction. When the Council has commented upon an undertaking pursuant to Section 800.6 such as a comprehensive or area-wide plan that by its nature requires subse¬ quent action by the Federal Agency, the Council will consider its comments or approval to extend only to the undertak¬ ing as reviewed. The Agency Official shall ensure that subsequent action related to the undertaking is submitted to the Council for review in accordance with § 800.4(e) of these procedures when that action is found to have an adverse effect on a property included in or eligible for inclusion in the National Register. § 800.7 Other powers of the Council. (a) Comment or report upon non-Fed- eral undertaking. The Council will ex¬ ercise the broader advisory powers, vested by section 202(a)(1) of the Act, to recom¬ mend measures concerning a non-Federal undertaking that will adversely affect a property included in or eligible for inclu¬ sion in the National Register: (1) upon request from the President of the United States, the President of the U.S. Senate, or the Speaker of the House of Repre¬ sentatives, or (2) when agreed upon by a majority vote of the members of the Council. (b) Comment or report upon Federal undertaking in special circumstances. The Council will exercise its authority to comment to Federal agencies in certain special situations even though written notice that an undertaking will have an effect has not been received. For example, the Council may choose to comment in situations where an objection is made to a Federal agency finding of “no effect.” § 800.8 Criteria of effect. A Federal, federally assisted, or fed¬ erally licensed undertaking shall be con¬ sidered to have an effect on a National Register property or property eligible for inclusion in the National Register (dis¬ tricts, sites, buildings, structures, and objects, including their settings) when any condition of the undertaking causes or may cause any change, beneficial or adverse, in the quality of the historical, architectural, archeological, or cultural character that qualifies the property under the National Register Criteria. § 800.9 Criteria of adverse effect. Generally, adverse effects occur under conditions which include but are not limited to: (a) Destruction or alteration of all or part of a property; (b) Isolation from or alteration of its surrounding environment; (c) Introduction of visual, audible, or atmospheric elements that are out of character with the property or alter its setting; (d) Transfer or sale of a federally owned property without adequate condi¬ tions or restrictions regarding preserva¬ tion, maintenance, or use; and (e) Neglect of a property resulting in its deterioration or destruction. § 800.10 National Register criteria. (a) “National Register Criteria” means the following criteria established by the Secretary of the Interior -for use in evaluating and determining the eligi¬ bility of properties for listing in the Na¬ tional Register: The quality of signifi¬ cance in American history, architecture, archeology, and culture is present in dis¬ tricts, sites, buildings, structures, and objects of State and local importance that possess integrity of location, design, setting, materials, workmanship, feeling and association and: (1) That are associated with events that have made a significant contribu¬ tion to the broad patterns of our history; or (2) That are associated with the lives of persons significant in our past; or (3) That embody the distinctive char¬ acteristics of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose com¬ ponents may lack individual distinction; or (4) That have yielded, or may be likely to yield, information important in prehistory or history. (b) Criteria considerations. Ordi¬ narily cemeteries, birthplaces, or graves of historical figures, properties owned by religious institutions or used for re¬ ligious purposes, structures that have been moved from their original locations, reconstructed historic buildings, prop¬ erties primarily commemorative in na- REGISTER, VOL. 39, NO. 18—FRIDAY, JANUARY 25, 19/4 -120- .^70 RULES AND REGULATIONS ture, and properties that have achieved significance within the past 50 years shall not be considered eligible for the National Register. However, such prop¬ erties will qualify if they are integral parts of districts that do meet the cri¬ teria or if they fall within the following categories: (1) A religious property deriving pri¬ mary significance from architectural or artistic distinction or historical impor¬ tance; (2) A building or structure removed from its original location but which is the surviving structure most importantly associated with a historic person or event; (3) A birthplace or grave of a histori¬ cal figure of outstanding importance if there is no appropriate site or building directly associated with his productive life; (4) A cemetery which derives its pri¬ mary significance from graves of persons of transcendent importance, from age, from distinctive design features, or from association with historic events; FEDERAL REGISTER, VOL. 39, NO. 18—FRIDAY, JANUARY (5) A reconstructed building when ac¬ curately executed in a suitable environ¬ ment and presented in a dignified man¬ ner as part of a restoration master plan, and when no other building or structure with the same association has survived; (6) A property primarily commemo¬ rative in intent if design, age tradition, or symbolic value has invested it with its own historical significance; or (7) A property achieving significance within the past 50 years if it is of excep¬ tional importance. [FR Doc.74-1936 Filed 1-24-74;8:45 am] 25, 1974 - 121 - \H f. U S. DEPARTMENT OF TRANSPORTATION FEDERAL HIGHWAY ADMINISTRATION REGION 5 18209 DIXIE HIGHWAY HOMEWOOD ILLINOIS 60430 April 21, 1975 N REPLY REFER TO 05-00.5 Colonel Walter H. Johnson District Engineer Rock Island District, Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: As requested, we have reviewed the draft environmental statement and the Phase I General Design Memorandum for a local flood control project along the Mississippi River at Moline, Illinois. The proposed flood control project will affect local drainage systems and local transportation systems, but the proposed improvement appears to be well integrated into areawide planning. The opportunity to review and comment on the draft environmental state¬ ment for the proposed improvement is appreciated. Sincerely yours, H. L. Anderson Regional Administrator By: W. G. Emrich, Director Office of Environment and Design -122- ^OHMv ,^ tDS V i UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION V 230 SOUTH DEARBORN STREET CHICAGO, ILLINOIS 60604 AMY i a ig ; 5 Colonel Walter H. Johnson District Engineer U. S. Army Engineer District, Rock Island Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: In response to your letter of April 2, 1975, we have completed our review of the Draft Environmental Impact Statement (EIS) for local flood protection along the Mississippi River at Moline, Illinois. The EIS presents a good description of the project and provides recognition of environmental values within the area of the project. We offer the following continents for your use in preparing the Final EIS. We concur with the statement in the EIS that Sylvan Island is a significant natural resource that should be preserved, and we have no objections to the proposal to provide passive recreational use for the area. We also agree with the statement that the pre¬ servation of wet prairies is warranted; however, the EIS does not indicate if preservation of the wet prairie area will be part of the project. The discussion of hydrologic impacts states that the redeposition of suspended alluvial sediments would occur which could potentially develop into extensive mudflats. The Final EIS should discuss possible measures to prevent or minimize scour and subsequent redeposition of sediment. Also, the EIS should discuss the impacts on water quality and aquatic life resulting from the potential mudflats caused by the project. In addition, the EIS should indicate any measures that will be taken to minimize adverse effects if extensive mudflats form. Care should be exercised during the levee construction stage so as not to adversely affect water quality. Benthic life can be pre¬ served if sediment movement is held to a minimum. Extensive grading belcw normal river stage for placement of rip-rap should be avoided to hold sedimentation to a minimum. - 123 - - 2 - In accordance with EPA procedures, we have classified this project as Category LO (Lack of Objections) and we have rated the Draft EIS as Category 2 which means additional information should be provided in the EIS. The classification and the date of our caiments will appear in the Federal Register in accordance with our responsi¬ bility to inform the public of our views on major Federal actions. If you or your staff have any questions concerning our comments, please contact Mr. Gary A. Williams at 312-353-5756. Sincerely yours /7 Donald A. Wallgren Chief, Federal Activities Branch -124- Illinois Department of Transportation 2300 South Dirksen Parkway Springfield Illinois 62764 Division of Water Resources June 16, 1975 Colonel Walter A. Johnson District Engineer U.S. Army Engineer District, Rock Island Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: The Division of Water Resources concurs with the recommended plan set forth in Phase 1 GDM for Moline, Illinois, dated March 1975, with the follow¬ ing exceptions. The Phase 1 GDM for Moline includes two landfills in the Mississippi River which are of concern to this agency. Landfill between 52nd Street and 55th Street Filling into the Mississippi River is ongoing by the City of Moline. State and Federal permits have been granted to the City to fill and straighten the river bank behind the 1912 Harbor Line. The fill is related to the project insofar as the Phase 1 GDM will provide recreational mitigation improvements to offset losses due to the levee route through Butterworth Park. Landfill between Arsenal Bridge and Memorial Bridge According to the Phase 1 GDM, the purpose of this fill is to create a riverside park as an aesthetic and recreational enhancement for the proposed apartment development in the urban renewal area. We pointed out the State has no quarrel with recreation improvements per se . However, the fill is solely for the purpose of making land and the Division of Water Resources has no authority to issue a permit for making land under the Rivers and Lakes Act. I refer you to enclosed Attorney General opinion letter dated December 19, 1956 from then Attorney General Latham Castle to then Director Rosenstone. - 125 - Colonel Walter A. Johnson -2- June 16, 1975 We suggest the only remedies are: 1) delete, redesign, or relocate the improvement so no landfill is required; or 2) secure specific authorization for the landfill from the General Assembly. * The Phase 1 GDM for Moline also includes upgrading the Sylvan Island Levee, to which we have certain reservations. The line of protection incorpo¬ rates a federally owned structure at each end of the Sylvan Island Levee. We are concerned that there will be dual maintenance responsibilities for the pro¬ posed line of protection which may lead to complications. The Sylvan Island line of protection is for the preservation of the Dam 15 pool and federal interests, in lieu of shoreline protection on the left bank in the City of Moline. It is our position that the Federal Government should assume all maintenance of the Sylvan Island line of protection, espe¬ cially the power house segments. Division of Water Resources LME:ALK:er Enclosure cc: Mayor Earl Wendt, City of Moline Kellerstrass Carlisle -126- STATE OF ILLINOIS DEPARTMENT OF CONSERVATION Anthony T. Dean DIRECTOR 605 STATE OFEICE BUILDING 400 SOUTH SPRING ST. SPRINGFIELD 62706 Harold L.-Ellsv/orti ASSISTANT DIRECTOR CHICAGO OFFICE-ROOM lOO. 160 N. LA SALLE ST., 60601 August 5, 1975 Mr. Bernard P. Slofer LTC, Corps of Engineers Deputy District Engineer Dept, of the Army Rock Island District Clock Tower Building Rock Island, Illinois 61201 Dear LTC. Slofer: My staff has reviewed the plans and reports concerning the Local Flood Protection Project in Moline, Illinois. I have the following comments: 1. ) The project will have no adverse affect on Historic or Architectural Sites. 2. ) The project will adversely affect Archeological Sites but will receive clearance from my office providing the recommendations of Benchley and Blakeslee as con¬ tained on pages 16 and 17 of their June, 1975 report are implemented by your office. A letter showing that you have followed the recommendations should be sent to me. If you have any questions on this matter please feel free to contact me. Sincerely, Anthony T. Dean ATD/lg cc: Charles Bareis Dick Lutz Margaret Brown Change 1, Aug 76 Recycled Paper -126A- - ■ ■ BLANK . ■ ■ ' ... STATE OF ILLINOIS Anthony T. Dean DIRECTOR DEPARTMENT OF CONSERVATION 605 STATE OFFICE BUILDING 400 SOUTH SPRING ST. SPRINGFIELD 62706 HAROLD L. ELLSWORTH _ ASSISTANT DIRECTOR CHICAGO OFFICE-ROOM lOO. 160 N. LA SALLE ST., 60601 May 26, 1975 Colonel Walter H. Johnson Department of the Army Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Attention: Mr. John Adamski Dear Colonel Johnson: The Department of Conservation has completed its review of the March, 1975 draft Environmental Impact Statement and General Design Memorandum for the Moline, Illinois Flood Control Project and your April 25 letter in which you elaborate on your proposal to improve the levee on Sylvan Island, including the floodproofing of the existing power dams. Our comments follow: General Design Memorandum The draft Environmental Impact Statement mentions the importance of the sport fishery of Sylvan Slough and the importance of Sylvan Island, "as a significant natural resource for the City of Moline, and its character¬ istics should be preserved". To maintain these important natural re¬ sources and respective uses in the project area, the "recommended plan" in the Phase I GDM, including improvements to the levee on Sylvan Island and strengthening the power dam structures, is acceptable to the Depart¬ ment of Conservation provided: 1. The existing flow pattern in Sylvan Slough during normal flows will not be reduced. 2. Construction of levee on Sylvan Island will be conducted with a minimum of disturbance to existing vegetation on the island. All unnecessary construction roads should be eliminated and widening of existing roads be kept to a minimum. -127- Colonel Walter H. Johnson - 2 - 1 3. Plans by the City of Moline to rehabilitate Sylvan Island vegetation, improve fishing facilities and protect fish and wildlife resources for passive recreation, such as fishing, hiking and bird watching, are incorporated into the GDM. The island should not be developed for recrea¬ tional vehicular traffic. 4. All existing fishermen and boating access areas are main¬ tained . 5. All recreation plans in the GDM are definitely incorporated into the project during construction. Especially, the recreation plans associated with the parkway fill between 52nd and 55th Streets. Inclusion of these recreation facilities are important mitigation measures for the loss of aquatic habitat and parkway as a result of the levee construction. In our March 4, 1975 letter to you, we offered comments and recommenda¬ tions concerning archaeological-historical aspects of this project. We also note you have received comments from Mr. McDermott and Mr. Bareis regarding these items. We assume the final report will fully discuss these concerns. Environmental Impact Statement The EIS properly emphasizes the importance of the sport fishery in the project area, but, in our opinion, the 2,708 figure for sport fishermen is low. Since the number of fishermen cited is taken from counts at Lock and Dam 15, it would not include those fishermen on Sylvan Slough. From our aerial counts, we would estimate usage to be 10,000 fisherman trips per year. Concern for fishing in the project area cannot be restricted solely to the fishery resource, but must also encompass the fishermen. In studies of motivations for fishing, it was found that a major motivation was the need to experience a natural setting. In the project area, this need is probably best fulfilled on Sylvan Island. Modifications that adversely effect the island’s vegetation or topography could reduce it’s appeal to many fishermen and, thus, adversely effect fishing. Therefore, we concur with a statement in the EIS that, "Sylvan Island is a signif¬ icant natural resource for the City of Moline, and its characteristics should be preserved". Specific comments are: Section 4.0111 - Hydrologic Impacts It is stated that alluvial sediments would be redeposited and could potentially develop into extensive mudflats. A complete discussion of % -128- Colonel Walter H. Johnson - 3 - the effects of this siltation on the aquatic environment should be in¬ cluded in the final EIS. Section 4.0221 - Biological Impacts The described impacts on Sylvan Island suggest that not enough considera¬ tion has beeen given to the effects of the losses incurred. Certainly these impacts are in direct conflict with preservation of the island’s "characteristics" as recommended in Section 2.02212 of the draft EIS. Section 4.034 - Parkway Fill The final EIS should discuss the impacts of this fill on the existing aquatic environment. Section 4.045 - Recreation This section indicates an accurate measurement of the long-term, positive' and negative impacts of the levee construction on Sylvan Island must await decisions by the City of Moline regarding the island’s future use. It is our understanding that the City of Moline has decided on the future use of Sylvan Island, and that, in general, they are interested in leaving the island in a natural state for passive recreation with vehicular access for supervision of recreation activities, for maintenance and improve¬ ments, for controlling access and movements of people, and for security of users. If this information is correct, then it should be possible to fully dis¬ cuss the impacts of levee construction in detail in the final EIS. Section 6.0321 - Estimate of Cost We note that you have deducted $670,000 from the gross first costs for savings to the East Moline project. Since the East Moline project is not finalized, is this a logical assumption? Another question concerns Section 1.064, where it is stated that these costs reflect an anticipated savings to the flood protection project for East Moline. If this is true, should not the $670,000 be subtracted from the East Moline project and not the Moline project? Thank you for the opportunity to comment. Sincerely ATD: meh - 129 - ILLINOIS ARCHAEOLOGICAL SURVEY 109 DAVENPORT HALL Cooperating Institutions: University of Illinois Southern Illinois University Illinois State Museum UNIVERSITY OF ILLINOIS URBANA, ILLINOIS 61801 April 11, 1975 Colonel Walter H. Johnson Rock Island District Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: I have received your letter of April 2 as well as the Draft EIS and Draft General Design Memorandum, Phase 1 for the Mississippi River Local Flood Protection, Moline, Illinois. After carefully reviewing both documents, I find them to be unac¬ ceptable and totally inadequate with regard to describing and portraying the archaeological resource base to be potentially affected by the afore¬ mentioned projects. The inadequacy of these reports is even more dis¬ couraging in view of the fact that you have published a letter from me in the Design Memorandum which indicates!^! chink should be done in order to obtain adequate information with regard to any archaeological resources of the affected area. The statement in paragraph 4.0043 on page 50 of the Draft EIS that M No archaeological sites have been identified in the project area by either the Illinois Archaeological Survey or the Quad Cities Area Archaeological Society” applies to a records check only . In fact, our records indicate the possibility of one site which cannot be confirmed until it is actually checked on the ground. Since we have been assisting your office and other agencies with advice and information on this project since late in 1972, I find it difficult to understand why there has not been a concerted effort to examine the potentially impacted area with regard to any existing archaeological resources. The area is obviously a difficult one to examine because of extensive urbanization. However, until the potentially impacted area has been checked through a pedestrian survey, we cannot make any assessment on the archaeological resource base as to what is or is not present. I therefore request again that a formal reconnaissance survey be undertaken by an affiliate member of the Illinois Archaeological Survey in subject area. Until the results of such a survey are known, what has - 130 - Colonel Walter H. Johnson April 11, 1975 Page 2 been indicated archaeologicaliy by your office in the aforementioned draft reports must be considered inadequate. Cordially yours, Charles J. Bareite Secretary-Treasurer CJB:bv cc: R. Train, CEQ R. J. Hitt Carl Falk Anthony Dean Elizabeth Benchley -131- 1504 3rd AVE., ROCK ISLAND, ILLINOIS 61201 309-788-6338 Si - State Metropolitan Planning Commission April 30, 1975 Colonel Walter H. Johnson District Engineer Rock Island District Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: This letter is in response to your request for our review and comment regarding the draft environmental impact statement (EIS) and the Phase I General Design Memorandum for the local flood protection project along the Mississippi River at Moline, Illinois. We have reviewed these documents and wish to make the following comments. We appreciate the recognition of our earlier comments with regard to the desirability of coordination between our 1995 Outdoor Recreation and Open Space Plan for Rock Island and Scott Counties and the design for this flood protection project. We note that provisions have been made to provide for a recreation facility along Reach C, as has been recommended by the Recreation Plan. We also would like to commend the additional recreation facilities proposed along Reach A, which recognized the existing recreational use of that area and also provide for a mitigation of the negative esthetic effects of the project. There appear to be three errors in the text of the draft of the environmental impact statement. On page 19, a reference is made to the population pro¬ jections for the area prepared by our agency. It is noted that we have projected a population increase of 125,000 for the area. The projection is for the entire three-county SMSA, so that the percentage increase would be less than the 50 percent figure noted in the text. On page 36, it is noted that the solid waste generated in the City of Moline is deposited in a sanitary landfill "in the Village of Milan." It is our understanding that this is not true. The City of Moline has a contractual arrangement with a private hauler who operates a landfill facility in the unincorporated portion of Rock Island County near the Village of Andalusia. We also understand that the City has recently chosen not to renew this contractual arrangement, and will instead seek an arrangement with the City of Rock Island. Finally, on page 70, the Bi-State Metropolitan Planning Commission is cited as a "citizen group." We suggest that the Bi-State should instead be classified as a "government agency," as listed on page 69. -132- SERVING SCOTT COUNTY, IOWA; ROCK ISLAND AND HENRY COUNTIES, ILLINOIS Letter to: Colonel Walter Johnson Page 2 April 30, 1975 Thank you for your attention to these comments. We appreciate having had the opportunity to review these two documents. Very truly yo F. GLEN ERICKSON Executive Director CML/gaj - 133 - City of Moline, Illinois 61265 EARL L. WENDT, Mayor NCRED-PB May 19, 1975 Draft Environmental Impact Statement Phase I General Design Memorandum Department of the Army Rock Island District, Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Attention: Colonel Walter H. Johnson District Engineer Dear Sir: Reference is made to the public meeting of April 17, 1975 at the Moline Y. M. C. A and the subject two documents as prepared for a local flood protection project along the Mississippi River in Moline, Illinois. While the subject two documents are very thorough, I am concerned about the conclusions presented regarding the intake structure. Please note that our municipal water supply is obtained through this single intake structure. It is not practical to take it out of service, even to allow placement of an emergency 30 ,r gate and gatewell on the intake line (Reference Phase I, General Design Memorandum Plate E). I am also con¬ cerned about operational problems germane to an earthen dike across our frontage. I will appreciate a thorough evaluation of the items mentioned above dur¬ ing the design phase. Sincerely yours. Lloyd B. Grantz Superintendent of Water Department - 134 - DEPARTMENT OF GEOGRAPHY AmsttaM ^COL_l_EO EE ROCK ISLAND, ILLINOIS 61201 May 9, 1975 Colonel Walter H 0 Johnson Rock Island District, Corps of Engineers Clock Tower Building Rock Island, Ill. 61201 Dear Colonel Johnson: As a person who participated in the development of the environ¬ mental inventory for the Moline Project (under the coordination of the Augustana Research Foundation) and as a person who has had considerable interest in the western part of the project area,, I would like to indicate some reactions and suggestions to the Draft Environmental Impact Statement. For simplicity of organi¬ zation, I will proceed according to the order of the Statement. 1) p. 4* l<>04l The idea of the small park at this location seems to be a good one. The area is a very popular fishing spot. Yet, the present condition is lacking both in aesthetic appeal and in provision of basic facilities. The proposal would enhance the shoreline in thi§4rea. At the same time, one of the fisherman along that section noted that any protrusion into the water, such as the proposed fishing docks, might have a negative effect on the walleye fishing. While I am not a biologist and cannot speak to the accuracy of this per¬ ception, you might consider it or check it out. 2) pp. 21-24, 2.04 Apparently, the detailed land use data gathered for and used in the environmental inventory was not used. Why? Our data was based on block-by-block data gathered from direct field observation in 1973* In fact, one reason for the detailed field work was the admission by Bi-State that their land use map for ^oline was at too general a scale to be reliably accurate, particularly since it was prepared three years earlier. The results are not significantly different; however, it would seem that the most recent and most detailed data would be used. 3) pp. 28-29, 2.048 As is so often the case when considering historic features, you have identified only the exceptional or unique buildings. Increasingly, among those involved in historic preservation, there is interest in areas or districts of historic interest. Furthermore, this kind of interest is directed not only for areas which have great significance, but also for areas which simply reflect a particular period including the very commonplace or everyday features. For example, within this project area, you have the historic core of the first built-up Moline settlement and, on Sylvan Island, you have the remains of the old Republic Steel Plant which in terms of its steel¬ making process and its site location is representative of a - 135 - turn-of-the-century steel plant. Also, why did you limit the historic information to places identified by the Historic Land¬ marks Survey? In our environmental inventory, I as a historical geographer and two very good history students collected consider¬ able extra data on this area and included it in the inventory. Thus, I urge you to review the environmental inventory historic section and to expand this section in the E.I.S. This, data may suggest even more reasons to protect the area under consideration. Though you have cited the 1973 Park and Recreation Board plan for Sylvan Island, it should be noted that the Moline Citizens Advisory Committee unanimously recommended that Sylvan Island be kept free of automobile traffic and that it be developed as a fishing, historic, and natural park, (By developed, they meant in this case doing basic clean-up and installing a few basic recreation use facilities, but basically leaving the island in its present passive state,) I am enclosing for your reference a copy of "Sylvan Island: A Century of Choice" which concludes with some recommendations for this island. With a few minor exceptions it was this proposal which the Citizens Advisory Committee recommended. If such low intensity and basically undeveloped use and condition of the island were adopted, it would put your decision to construct a levee on its northern flank in a somewhat different light. Since the condition of the bridge is a key issue, I hope that construction of a bridge is not planned as part of the project and hidden somewhere in the project’s costs, 5) p# 50, 4oOlj-52 This paragraph seems accurate in describing where things stand. In fact, it is more accurate that the section 3«Ol8, p. 37> which I have just discussed, in the sense that it says " if the decision is made to extend an automobile bridge.,.." However, since the question has not been decided conclusively, which use did you use when you computed your benefit-cost ratio for this part? and when you estimated the environmental impact? 6 ) p. 63 , 6.0591 According to the standard guidelines for proper use of benefit-cost, B/C ratios are to be computed for each alternative and, then, the alternative with the best B/C ratio is to be selected. Yet, you state "individualr atbs have not been computed; comparison with those prepared for Alternatives 1, 2, and 3 would be meaningless." How can the public judge your proposal and the individual sections of the project area and whether or not some alternatives are meaningless if you do not even compute the ratios? 7) p. 68 Why is there no mention of the perception studies carried out under the environmental inventory. An interview survey of the twenty largest firms in the project area and a 30 per cent block-by-block sample of residences was carried out using a questionnaire developed by the International Geographical Union's Commission on Man and the Environment. It was another kind of public participation which should be noted. It is my suspicion that this data basically was ignored. Certainly, none of the findings of these interviews were reported in the E.I.S. 4 ) Pc 37 3 e0l8 - 136 - 8) p. 68, 9c013 Having talked with many people who use Sylvan Island, I have some questions about the reliability of the last sentence: ’’support for some type of flood protection was expressed by a broad cross-section of the citizenry.” I do not doubt that some expressed interest in the idea of flood protection when presented with the alternative. However, it repeatedly has been my impression based on our surveys that flood protection for the island is a low priority item in the minds of those who use the island. Thus, I would like to know who this "broad cross section” is and how it was measured. On the Sylvan Island question my overall conclusion would support the criticism made by Mr. Kulp at the hearing. There would be considerable disturbance of the natural ecology of this island. There seems to be little significant reason for building the levee in this section; at least, any reasons were not stated clearly in this report. If the island is left in a natural, minimally-developed state, I find it hard to believe that you could arrive at such a high B/C ratio for this section. If you would be interested in hearing more about this part of the pro¬ ject area, I would be happy to discuss it with you and, even better, to walk this area with you. All in all, my criticisms of the report are of two types: the Sylvan Island portion is very questionable in terms of its ecologic consequences and economic feasibility and the omission of relevant data in at least three categories in the E.I.S. which had been included in the Environmental Inventory. Thank you for your attention. Sincerely, Norman Moline Assistant Professor of Geography 312 435-7435 Ohicago. Rook Island and Pacific Railroad Damp any LA SALLE STREET STATION CHICAGO, ILLINOIS 60605 ENGINEERING DEPARTMENT April 15, 1975 PLEASE show our file NUMBER AND DATE IN REPLT File: 100179 Mr. Walter H. Johnson Colonel, Corps of Engineers District Engineer Rock Island District, Corps of Engineers Clock Tower Building Rock Island, Illinois 61201 Dear Colonel Johnson: Reference is made to your letter of April 2, 1975, file NCRED-PB transmitting draft of environmental impact statement for a local flood protection project along the Mississippi River at Moline, Illinois. We take no exception to the draft of the environmental impact statement. We feel that the project will improve the environment of the protected area. Very truly yours C. E. Weller Assistant Vice President Engineering - 138 - Gentlemen: Regarding the proposed flood control program for the City of Moline, along the Mississippi River from the west city limits at First Street to the eastern limits at 55th Street, we would like the following comments entered into the records: First, let me say at the outset, we are not opposed to a flood control plan for the City of Moline. We agree that protective measures should be taken wherever necessary and where economic justification and need can be shown. However, our Company does strenuously object to an earthen levee through our property. We feel, if justification for flood protection can be shown, then a structure sufficient to protect the area should be built which would least disturb the owners of property in the area and allow them to utilize the land for the purpose it was purchased. If the proposed protection plan requires the property owner to curtail his operations, or prohibits the use of the property for the uses it was purchased, or perhaps require him to purchase additional land to replace land taken, then we question its justification. If the structure is not to protect the land owner, who else? For the record, our Company owns approximately twenty acres of land in this area which will be affected by the proposed flood protection plan described as follows: This land has a river frontage of approximately 2100 feet starting at 22nd Street and 3rd Ave., extended to the river, thence upstream to 25th Street, Moline. Since the early 1900's our Company has operated a Sand and Gravel business, an Ice and Coal business, a Ready-Mix Concrete business, a Material Warehouse and Storage Yard, and more recently, a Pre-Cast Concrete business, this all on the property between 23rd and 25th Streets, and between the River and the Rock Island Lines tracks. Recently, however, because of ex¬ panded operations and because of property taken for new Highway needs, the property lias become too small for our operations so we purchased additional property known as the Dimock & Gould property located between 22nd and 23rd Streets and, I might say, it isn't easy to acquire more land in that area for any price. Asa part of our Sand and Gravel business we also have a tow boat (The James Pears and a fleet of barges. This requires that we have direct access to the River, both for loa - 139 - mg and unloading purposes, as well as for docking and repair of same. At present the docking and repair facilities are adjacent to the loading and unloading area. Because of the need to expand our loading, unloading and storage area we ha\e plans to move the docking and repair area down river near the Dimock 8c Gould buildings. 1ms would free the present area for the needed expansion, so you see a levee in this area woulc prohibit this and thus curtail our operation substantially. By the way, we just happen to be the only user of the river in the area. We believe that a boat and barge unloading and docking facility should be allowed on the Moline Missis¬ sippi River bank not only for Moline Consumers Company’s use but also because of the future of Moline, even if our Company were to vacate. We would, therefore, urge you to alter your plans to allow continuation of a concrete wall for the entire length of our property with the necessary closure structures to facilitate the river use and to allow the necessary movement of equipment. As stated before, we are not opposing the general flood protection plan but do feel that the plan should allow us the free use of our land and for the uses we acquired it. If this is not possible, then I think we would want to seriously consider being left in the flood area. We feel that trying to utilize our land with the levee across our property would cost us far more than our costs would be to protect it during flood periods as we did in 1965 and we were able to operate every day behind a wall 8 ft. high which we constructed our¬ selves. We have tried to consider all suggestions made by every one concerned, and feel that it would be an unjust act to impose any form of flood protection other than a wall along out river frontage. I note from your General Design Memorandum, Page D-14, that the flood of record is a 43 year flood with a 2.4% chance of being equalled or exceeded in any year. In lieu of the present Proposal, I think we could well afford to take the chance. We would sincerely hope that the Plans could be altered, as we have suggested, so tha the Plan for flood control for Moline can proceed as scheduled. Thank you. MOLINE CONSUMERS COMPANY By: -140- N. R. Lundeen, Vice President. City of Moline, Illinois 61265 EARL L. WENDT, M *yor INOINCIRINd DEPARTMENT PHONE 797 - 0700 Proposed Flood Protection September 23, 1976 Colonel Daniel L. Lycan District Engineer Rock Island District U. S. Corps of Engineers Clock Tower Building Rock Island, Illinois Attention: Mr. Doyle W. McCulley, Chief Engineering Division Dear Mr. McCulley: After reviewing the report prepared by Elizabeth Benchley, Contract Archaeologist, and Donald J. Blakeslee, Field Archaeologist, of the Department of Anthropology, University of Milwaukee, Wisconsin titled "Archaeological Survey of the Moline Flood Protection Project," we have decided to investigate alternate sources of borrow excavation. We realize that the Phase I survey is not an adequate basis for estimating the signifi¬ cance of the archaeological remains discovered; however, we feel that it is advisable to attempt to locate an alternate site instead of investing in a Phase II testing program. Since the quantity of borrow is large, it would likely take some time to locate an alter¬ nate borrow source with the proper soil characteristics, 1 will advise you when ah alter¬ nate site is located. For any clarification or additional information, please contact this office. Sincerely yours. John P. Hoffstatter, P.E. Director of Engineering BIBLIOGRAPHY Augustana Research Foundation. Environmental Inventory Data, Moline Project . Rock Island. 1973. Bi-State Metropolitan Planning Commission. A Summary Re¬ port Solid Waste Management Plan Scott County, Iowa - Rock Island County, Illinois . Rock Island. March, 1973. _. Prepared for the Rock Island County Overall Economic Development Program Committee. Initial Overall Economic Development Program Rock Island County . Rock Island. December, 1972. _. Metropolitan Comprehensive Water, Sewage, and Solid Waste Planning Study . Volume I: Background. Rock Island. March, 1970. _. Metropolitan Comprehensive Water, Sewage, and Solid Waste Planning Study . Volume II: Inventory, Analysis and Plan. Rock Island. March, 1970. _. Metropolitan Comprehensive Water, Sewage, and Solid Waste Planning Study . Volume III: Short-Range Development Program . Rock Island. March, 1970. _. Bi-Lines. Vol. 6, No. 1. July, 1974. . Forecasts 1995. Rock Island. January, 1973. _. Forecasts 1995 Summary. Rock Island, January, 1973 _. Quad City Profile - I. Rock Island. April, 1972. _. Quad City Profile - II. Rock Island. May, 1973. Candeub, Fleissig and Associates, prepared for Bi-State Metropolitan Planning Commission. Alternative Con¬ cept Plans Bi-State Metropolitan Area Scott and Rock Island Counties. Rock Island. November, 1967. s Candeub, Fleissig and Associates, prepared for Bi-State Metropolitan Planning Commission. Comprehensive Plan Bi-State Metropolitan Planning Area. A Summary Report . Rock Island. August, 1968. . General Plan Bi-State Metropolitan Planning Area. Rock Island. April, 1968. Carlander, K. D. , C. A. Carlson, V. Gooch, and T. Wenke. "Populations of Hexagenia mayfly naiads in Pool 19, Mississippi River, 1959-1963." Ecology 48(5): 873 - 878. 1967. Cullen-Schiltz h Associates, P. C. and Henningson, Durham & Richardson, Inc. Solid Waste Management Plan for the Bi-State Metropolitan Planning Area. 1972. Fawks, E. and P. Peterson. A Field List of Birds of the Tri-City Region . Tri-City Bird Club. Davenport. 1961. Governor's Task Force on Flood Control and the Illinois Depart¬ ment of Local Governmental Affairs. Illinois Local Government Advisory Service Planning and Management Series #1: The National Flood Insurance Program. Springfield, Illinois. March, 1974. Greater Davenport Chamber of Commerce. Industrial Directory Quad-City Area . Davenport. March, 1974. Hoffmeister, D. F. and C. O. Mohr. Fieldbook of Illinois Mamma 1 s. Dover Publications. New York. 1972. House Document Number 92-161, 92d Congress, 1st Session. Mississippi River at Moline, Illinois, and Davenport, Iowa . U. S. Government Printing Office. Washington, D. C . September, 1971. Hubbs, C. L. and K. F. Lagler. Fishes of the Great Lakes Region . University of Michigan Press. Ann Arbor. 1958. Hynes, H. B. N. The Ecology of Running Waters . University of Toronto Press. Toronto, Ontario. 1970. -2- State of Illinois, Department of Business and Economic Develop¬ ment. Illinois Regional Economic Data Book. Springfield, Illinois. 1971. Illinois Historic Land Marks Survey. Inventory of Historic Land¬ marks in Rock Island County . Carbondale, Illinois. December, 1973. Joint Transportation Policy Committee State of Illinois, Depart¬ ment of Transportation, State of Iowa, State Highway Commission. Bi-Ways; Davenport-Rock Island-Moline Urbanized Area Transportation Study Annual Report 72. 1972. King, Seth S. "Quad Cities Area Has High Employment, Ample Fuel and a Sense of Uneasiness . " The New York Times . New York, New York. February 7, 1974. Le Monte, Franasca. North American Game Fishes . Doubleday &: Co. New York. 1945. City of Moline, Illinois Planning and Zoning Department Compre¬ hensive Plan Office, prepared for Moline Plan Commission. Economic Potential Davenport-Rock Island-Moline Metro¬ politan Area. A First Report . Moline. January, 1965. Moline Park and Recreation Department. A Comprehensive Recreation Plan - Moline, Illinois. Moline. June, 1973. Quad-City Development Group. Quad-City Community Quick Referenc e . Rock Island. Rock Island Argus/Moline Dispatch. The Metro Quad-Cities Market. Rock Island. March, 1973. Rock Island County Regional Planning Commission. Economic Base Technical Studies Report II. Rock Island. February, 1966. Rock Island County Regional Planning Commission. Technical Studies Report: Comprehensive Report No. 1, Moline Illinois. Moline. 1966. . Technical Studies Report: Comprehensive Report No. 2, Moline, Illinois. Moline. 1966. /? V Smith, P. W. , A. C. Lopinot, and W. L. Pflieger. 1971. n A Distributional Atlas of Upper Mississippi River Fishes. n Illinois Natural History Survey, Biological Notes No. 73. 1971. U. S. Army Corps of Engineers. Davenport, Iowa Phase 1 General Design Memorandum Plan Formulation For Flood Control. Rock Island. November, 1974. _. Draft Environmental Impact Statement for Kent Creek, Rockford, Illinois Local Flood Protection Project. Rock Island. September, 1974. _. Flood Control Wild Rice River - South Branch and Felton Ditch, Minnesota Design Memorandum No. 1, Phase I General - Plan Formulation and Hydrology . St. Paul, Minnesota. May, 1974. . Moline, Illinois Local Flood Protection General Design Memorandum Phase I - Plan Formulation. Rock Island. Oc tober, 1973. _. Interim Report for Flood Control Mississippi River from Cassville, Wisconsin, to Mile 300 Interim Report No. 2 Moline, Illinois, and Davenport, Iowa Main Report Appen¬ dices B through E . Rock Island. April, 1970. _. Interim Report for Flood Control Mississippi River from Cassville, Wisconsin, to Mile 300 Interim Report No. 2 Moline, Illinois, and Davenport, Iowa Appendix A: Hydrology and Hydraulics . Rock Island. April, 1970. _. Prepared for the State of Illinois, Division of Waterways Department of Public Works and Buildings State of Iowa, Iowa Natural Resources Council. Mississippi River Flood Plain Information. Rock Island. June, 1969. _. Milan, Illinois Phase I General Design Memorandum Plan Formulation for Flood Control . Rock Island. November, 1974. I -4- % U. S. Army Corps of Engineers. Operation and Maintenance , Pool 15 Nine-Foot Navigation Channel Upper Mississippi River Draft Environmental Impact Statement . Rock Island. (No date) U. S. Department of Commerce. County and City Data Book, 1972 . U. S. Government Printing Office. Washington, D.C. 1973. U. S. Department of Interior. Threatened Wildlife of the United States . Government Printing Office. Washington, D.C. 1973. U. S. Department of Labor. Handbook of Labor Statistics 1971 . U. S. Government Printing Office. Washington, D.C. 1971. > -5- / u INTERVIEWS Richard Beebe Lochner & Associates September 5, 1974 William Bertrand Stream Biologist Illinois Department of Conservation January 10, 1975 Lloyd Grantz, Superintendent Moline Waterworks September 4, 1974 Dan McCorkle Conservation Officer Rock Island County January 13, 1975 Paul Meier, Supervisor, Mechanical Design Division Iowa-Illinois Gas and Electric Co. September 24, 1974 Richard Miller, Manager, Electrical Engineering Iowa-Illinois Gas and Electric Co. September 27, 1974 Norman Moline, Professor Augustana College September 5, 1974 Peter Peterson, President Illinois Audubon Society January 10, 1975 Charles A. Pyne Fred S. James Company September 16, 1974 - 6 - 4 r> INTERVIEWS (concluded) Joseph E. Reckard Planning Administrator City of Moline Planning and Zoning Department September 5, 1974 Larry Sanders Field Representative Governor's Task Force on Flood Control September 17, 1974 Dennis Stevens, Partner Erickson & Stevens September 10, 1974 Myron Thomas Executive Vice President Moline Chamber of Commerce September 2 5, 1974 Robert Williamson Wildlife Biologist State Department of Conservation January 9, 1975 - 7 - MAPS Bi-State Metropolitan Planning Commission Davenport-Rock Island-Moline Urbanized Area Trans¬ portation Study, 1970 1970 Average Daily Traffic Moline Planning and Zoning Department Land Use Plan, 1966 De Leuw, Cather 8: Company Urbanized Area Transportation Study (prepared for Bi- State Metropolitan Planning Commission, Iowa State Highway Commission, Illinois Division of Highways) 1968 Local Flood Protection Maps Moline Department of Playgrounds, Recreation and Parks Short-range Development Program Tri-State Aero-Engineering, Bettendorf, Iowa Aerial Photography (flown, December, 197 3) U. S. Army Corps of Engineers Local Flood Protection Maps PLATE 1 ”": v " NORTH 'SCALE IN FEET f ■ 1 ~ T—* o MOLINE, ILLINOIS LOCAL FLOOD PROTECTION GENERAL LOCATION MAP 2000 4000 6C PLATE 1 9m m 14ft r4i R* *■ if!9 Oi»fc Crw* '»A. 20W %S' T-^ '■- l.'V s ... . ■ .*<*r ■ E ■4 M > l.. ■. /V .. - ',: '.'Wl/P ?,V| Sres:* • ...r'\ H ? |5i§|\ 'it / $r " >/ W S*V J# !? 1 44- flip fell i. rMlPrtlf® i= ir!s^sES = " = ^i •IP*. y^-f r - - #’ jit' '•■.' tjl&dF :V4^S\.- , \ mA> &£; ysil / - >4t4krr~ MINNESOTA IMS »9►= • A. ■ Hfr v. PRbJK'. if r- ^lccationL #* 23 • uHLIfigCTO^ i>TTUW»m\— "“““"/ILLINOIS SOUR I »QUIMCV 32 >p r -f^~ t ( ~'* r;~ v ^ T ' ■ Tr i wm «#nmwarmj. i..|[W f~-'— .—^=^ rT~::~ T:~ '" a_ ?/ &■&, ILL. / • f i'-'ki ' Bjt:; 3 . 34 . ,- JL ..... ora ur 25 JK g*V .^2sNl v '' X SBggSuajk JN jraMs =r W 1 S S I $ s I P p I TATR*- - MOLINE vJ%JnZ^ 130, 1 : w REACH A $ jS|r : [] -S£— f ■ V* itfvijr P-^,. - 7 ?/?$•■ s r- , 10 I in 1 ;°i REACH B REACH C . _wrFt Hb^i fc: » 1&0 ’hfti.. '-. ■ A*"* ROCK ISLAND \ M I N E i±ii4 -Ci iUJi 'LjU^'; V-. l! *s.- r 1 L LEGEND FLOOD PLAIN AREA MOLINE CITY LIMITS MOLINE, ILLINOIS LOCAL FLOOD PROTECTION GENERAL LOCATION MAP I PUMPING STATION PUMPING PUMPING STATION ) PLANT. SYLVAN ISLAND JOHN DEERE ROCK ISLAND ARSENAL STATION IONA ILL. GAS & ELEC. CO. HYDRO-ELECTRIC < 800 PLATE 2 LEGEND LEVEE FLOODWALL NEW SHORELINE CLOSURE STRUCTURE SANDBAG CLOSURE STANDARD PROJECT FLOOD DOCKWALL ' ■ MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROPOSED PLAN OF PROTECTION PLATE 2 LEGEND LEVEE FLOODWALL -NEW SHORELINE (0) CLOSURE STRUCTURE (s) SANDBAG CLOSURE STANDARD PROJECT FLOOD DOCKWALL MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROPOSED PLAN OF PROTECTION PLATE 3 FISHING PIEP NORTH MOLINE, ILLINOIS LOCAL FLOOD PROTECTION SED RECREATION AND MITIGATION PLAN SYLVAN SLOUGH PLATE 3 FISHING PIER BOAT LAUNCHING RAMP 1ST AVENUE MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROPOSED RECREATION AND MITIGATION PLAN SYLVAN SLOUGH 2ND STREET lilt HU PLATE 4 OLINE, ILLINOIS LOCAL FLOOD PROTECTION 5ED RECREATION AND MITIGATION PLAN 52ND STREET TO 55TH STREET tilt mi PLATE 4 MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROPOSED RECREATION AND MITIGATION PLAN 52ND STREET TO 55TH STREET PLATE 5 INDUSTRIAL RETAIL TRADE TRANSPORTATION, COMMUNICATION AND UTILITY PUBLIC AND SEMI-PUBLIC RESIDENTIAL - HIGH DENSITY RESIDENTIAL - LOW DENSITY PARKS AND RECREATION RESOURCE AND UNDEVELOPED STANDARD PROJECT FLOOD MOLINE, ILLINOIS LOCAL FLOOD PROTECTION LAND USE - MOLINE FLOOD PLAIN PLATE 5 -V rt* > v - 4 §$§ n ■ •/// LEGEND ^gff; Epgp kiw INDUSTRIAL RETAIL TRADE SERVICES TRANSPORTATION. COMMUNICATION AND UTILITY PUBLIC AND SEMI-PUBLIC RESIDENTIAL - HIGH DENSITY RESIDENTIAL - LOW DENSITY PARKS AND RECREATION RESOURCE AND UNDEVELOPED STANDARD PROJECT FLOOD MOLINE, ILLINOIS LOCAL FLOOD PROTECTION LAND USE - MOLINE FLOOD PLAIN PLATE 6 II i CIVIL, PUBLIC EH! RETAIL OFFICE E3S53 MULTI-FAMILY PARKING LIGHT MANUFACTURING HEAVY MANUFACTURING SPECIAL USE 1 .W.0M V NOTE: pis LOCAL FLOOD PROTECTION BASE AND LAND USE M[ planners and K.W.. l(AND PROPOSED RECREATION PLAN PLATE 6 NOTE: BASE AND LAND USE MAP PREPARED BY ERICKSON AND STEVENS, INC. PLANNERS AND H.W. LOCHNER, INC.. ENGINEERS MOLINE, ILLINOIS LOCAL FLOOD PROTECTION REDEVELOPMENT AREA AND PROPOSED RECREATION PLAN 25 0 25 50 TS SCALE IN MILES PROPOSCO STORM SCWCR INTERCEPTOR PROPOSED 54“ RCP CULVERT NOTE 2 PROPOSED 8'«#' RCD CULVERT NOTE 2 CONCRETE DOCK-^ PROPOSCD PUMPINO STATION a- existing aatr LAUNCHING MNP 0, c ^7ip, LEGEND • NEW LEVEE (PROPOSED) wmmmm FLOODWALL (PROPOSCD) -36* EXISTING STORM SEWER INTERCEPTOR SEWER (PROPOSED) CLOSURE STRUCTURE (PROPOSED) SANDBAG CLOSURE (PROPOSED) DRILLED BORINGS • •••• LIMITS Of fLOOOING (>00 YEAR FREQUENCY) VvS 4 EXISTING LEVEE V//////A EXISTING BUILDING NOTES I. SEE PLATE 4 FOR BORING LOGS. 2 INSTALL SLUICE GATES AND GATE WELL ^DOWNSTREAM TIE-OFF AUTHORIZED € MOLINE OCAL FLOOD PROTECTION PROJECT MISSISSIPPI RIVER MOLINE. ILLINOIS LOCAL. FLOOD PROTECTION PLAN OF IMPROVEMENT SCALE AS SHOWN CORPS OP ENGINEERS. U. S ARMY ROCK ISLAND DISTRICT ROCK ISLAND. ILLINOIS DRAWN IT TRACfO »V CHECKED BT TO ACCOMPANY mPOAT OATIO 10 APRIL IB70 CORPS OF ENGINEERS U. S. ARMY PLATE 7 % PUMPING STATION MODIFY AUTHORIZED PLAN MODIFY AUTHORIZED PLAN MODIFY AUTHORIZED PLAN PLATE 8 LEGEND l ii|) j < t l l Hi | l i| LEVEE —- FLOODWALL -NEW SHORELINE (0 CLOSURE STRUCTURE (•) SANDBAG CLOSURE STANDARD PROJECT FLOOD ■ DOCKWALL MOLINE, ILLINOIS LOCAL FLOOD PROTECTION FLOOD PROTECTION ALTERNATIVES PLATE 8 LEGEND [i l |l|l | l lM l l ll LEVEE - FLOODWALL -NEW SHORELINE @ CLOSURE STRUCTURE (#) SANDBAG CLOSURE STANDARD PROJECT FLOOD ■ IHII DOCKWALL AREA REACHES CONSIDERED FOR NON-STRUCTURAL PROTECTION NON - STRUCTURAL PROTECTION NON-STRUCTURAL PROTECTION STRUCTURAL ADDITIONAL STRUCTURAL PROTECTION MOLINE, ILLINOIS LOCAL FLOOD PROTECTION FLOOD PROTECTION ALTERNATIVES A PLATE 9 LEGEND _ _ 1965 YR FLOOD REACH (FLOOD OF RECORD) -IOOYR FLOOD REACH 200YR FLOOD REACH (DESIGN FLOOD) STANDARD PROJECT FLOOD MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROJECT REACHES AND FLOOD ELEVATIONS PLATE 9 K LU LU q: H W tOOYR FLOOD REACH 200YR FLOOD REACH (DESIGN FLOOD) .c ■M in in STANDARD PROJECT FLOOD MOLINE. ILLINOIS LOCAL FLOOD PROTECTION PROJECT REACHES AND FLOOD ELEVATIONS DEVELOPMENT HUMAN TERRESTRIAL AQUATIC PROJECT ECONOMICS AND ECONOMY LAND USE RESOURCES ENVIRONMENT ENVIRONMENT plate 10 COMBINATION STRUCTURAL REACH A - NON-STRUCTURAL (SEE ALTERNATE UREACH B AND C CONTINUATION OF EXISTING emergency MEASURES GENERAL IMPACT ELIMINATES FLOODING REACH A ELIMINATES FLOOD OAMAGE TO FLOODPROOFEDSTRUCTURES. NO REDUCTION* IN FLOOD DAVAGES RIVERINE IMF T CHANNEL SCOUR OPPOSITE 18TH TOE. ELIMINATION OF EXISTING SHORE¬ LINE, 16TH - 2 1 ST STREETS. NONE * WATER QUAL TEMPORARY SILT ATlON AND TURBIDITY. NONE BIOTIC IMPAC ION . temporary loss OF bethnic COMMUNITIES AND FISH POPULATION. NONE SOIL impact: TEMPORARY EROSION NONE BIOTIC IMPAC E DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND DISRUPTIONS TO URBAN WILDLIFE HABITAT. NONE * COMMUNITY C ELIMINATION OF SOCIAL DISRUPTIONS CAUSED BY FLOODING, REACH A. EVACUATION OF HOMES. RELOCATION OF RESIDENTS. SOCIAL DISRUPTIONS TO CONTINUE DURING FLOOD STAGES ' * OISPLACEMEh NO SIGNIFICANT EFFECT temporary displacement DURING FLOODS * ADVERSE EMf MAY REDUCE EMPLOYMENT - OPPORTUNITIES POSSIBLE ADVERSE EFFECTS ACRES PROTE 3-30 IN REACH A INDIVIDUAL 'STRUCTURES IN REACHES B AND C 0 STRUCTURES S SAME AS ALTERNATE 1 PLUS ADDITIONAL STRUCTURES IN REACH B AND C DEPENDING UPON CONDITION OF STRUCTURES. NONE #DISPLACEMEN 0 0 * DISPLACEMEN AND BUSINES! DEPENDING UPON NUMBER OF STRUCTURES TO BE FLOODPROOFED; MAXIMUM OF 30 STORES, 16 INDUSTRIES, 1 04 RESIDENCES , 5 PUBLIC BUILDINGS. 0 TRANSPORTA OD IBS TEMPORARY' INTERRUPTIONS .DURING CONSTRUCTION AND FLOOD STAGE WHEN CLOSURE STRUCTURES ARE IN PLACE. CONTINUED INTERRUPTIONS TO ROADS AND RAILROADS DURING FLOOD STAGES. * UTILITIES POTENTIAL DISRUPTIONS DURING FLOODING. REACH B AND C. PROTECTS REACH A. v NO PROTECTION PROVIDED HISTORIC AN PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT NO PRESERVATION PROVIDED NO ARCHAEOLOGICAL IMPACT RECREATION 2 H B. :h c » ARK S. PROVIDES FACILITIES FOR PARKS AND FISHING AREAS. DEVELOP OPEN SPACE LAND REACH B INCLUDES PARK BETWEEN I6TH AND 20TH STREETS. TEMPORARY DISRUPTIONS TO FISHING. NONE * ESTHETICS, N TEMPORARY NOISE, DUST AND EXHAUST POLLUTION DURING CONSTRUCTION. VISUAL BARRIER FROM ACROSS THE RIVER. NON e * BUSINESS AND 'ION MAY PARTIALLY IMPAIR NORMAL OPERATION T.N REACHES B AND C DISRUPTION OF ACTIVITIES DURING FLOODS * DESI REABLE 1 . ' NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT PROPOSED RE TOE BENEFITS INCLUDE 18TH STREET TOE FOR PARK AND PROTECTION OF AREA PROPOSED FOR , REDEVELOPMENT. NONE POTENTIAL B MAY ENCOURAGE BUSINESS EXPANSION REACH A. DISRUPT AND DISLOCATE BUSINESS REACH B AND C. NONE * TAX REVENUE NO SIGN 1 F 1C ANT EFFECT MINOR ADVERSE EFFECT ESTIMATED FI AVERAGE ANNUAL LOSSES FROM FLOOD DAMAGE OF S2 2d 300 WOULD CONTINUE LOCATION BE -S18.000 (B AND C ONLY) FUTURE BENI $179,100 IB AND C ONLY) TOTAL BENEF $248,100 (B AND C ONLY' ESTIMATED PI FLOODPROOFING COSTS OF $4 275 000 ELIMINATED THIS ALTERNATIVE FROM FURTHER SCRUTINY ESTIMATED At BENEFIT-COS •* REQUIRED BY ARY OF IMPACTS FOR EACH ALTERNATIVE PLATE 10 o h > z UJ 1 < £T co UJ X X UJ z UJ z o X > z UJ z < D X CO UJ o x D O CO UJ X UJ CO Z) Q z < J z UJ X O _J UJ > UJ Q > 2 O z o (J UJ Q z < co U o z o u uJ h- (J UJ —) o X CL AUTHORIZED PLAN (REACH A ONLY) ALTERNATE 1 (REACH A ONLY) ALTERNATE 2 (REACH A AND C) ALTERNATE 3 (REACH A, B AND C) COMBINATION STRUCTURAL REACH A - NON-STRUCTURAL (SEE ALTERNATE 11REACH B AND C CONTINUATION OF EXISTING EMERGENCY MEASURES GENERAL IMPACTS ON FLOODING ELIMINATES FLOODING REACH A. (EXCLUDING SY LVAN ISLAND) ELIMINATES FLOODING BEACH A. ELIMINATES FLOODING REACH A AND C. ELIMINATES FLOODING REACH A B AND C . ELIMINATES FLOODING REACH A. ELIMINATES FLOOD DAMAGE TO FLOODPROOFED STRUCTURES NO REDUCTION IN FLOOD DAMAGES RIVERINE IMPACTS NONE CHANNEL SCOUR OPPOSITE 1BTH TOE ELIMINATION OF EXISTING SHORELINE, 16TH - 21ST STREETS. CHANNEL SCOUR OPPOSITE 18TH STREET TOE. ELIMINATION OF EXISTING SHORELINE, 16TH - 21ST AND 52ND TO 55TH STREETS. CHANNEL SCOUR OPPOSITE I8TH STREET TOE ELIMINATION OF EXISTING SHORELINE. 16TH - 21ST AND 52 N D TO 55TH STREETS. CHANNEL SCOUR OPPOSITE 18TH TOE ELIMINATION OF EXISTING SHORE¬ LINE, 16TH - 21 ST STREETS. NONE * WATER QUALITY IMPACTS TEMPORARY SILT ATION AND TURBIDITY. TEMPORARY SlLTATION AND TURBIDITY. TEMPORARY SlLTATION AND TURBIDITY . TEMPORARY SlLTATION AND TURBIDITY . TEMPORARY SlLTATION AND TURBIDITY. NONE BIOTIC IMPACTS TEMPORARY LOSS OF BETHNIC COMMUNITIES AND FISH POPULATION. TEMPORARY LOSS OF BETHNIC COMMUNITIES AND FISH POPULATION. TEMPORARY LOSS OF BETHNIC COMMUNITIES AND FISH POPULATION. TEMPORARY LOSS OF BETHNIC COMMUNITIES AND FISH POPULATION. TEMPORARY LOSS OF BETHNIC COMMUNITIES AND FISH POPULATION. NONE SOIL IMPACTS TEMPORARY EROSION. temporary erosion. TEMPORARY EROSION. temporary erosion. TEMPORARY EROSION NONE BIOTIC IMPACTS DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND. DISRUPTION OF URBAN WILDLIFE HABITAT. DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND. DISRUPTION OF URBAN WILDLIFE HABITAT DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND. DISRUPTION OF URBAN WILDLIFE HABITAT. DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND. DISRUPTIONS OF URBAN WILDLIFE HABITAT DESTRUCTION OF RIPARIAN VEGETATION AND MARSHLAND. DISRUPTIONS TO URBAN WILDLIFE HABITAT. NONE ♦ community cohesion elimination of social DISRUPTIONS CAUSED BY FLOODING. ELIMINATION OF SOCIAL DISRUPTIONS CAUSED BY FLOODING. ELIMINATION OF SOCIAL DISRUPTIONS CAUSED BY FLOODING, REACH A AND C. ELIMINATION OF SOCIAL DISRUPTIONS CAUSED BY FLOODING, REACH A, B ANDC. ELIMINATION OF SOCIAL DISRUPTIONS CAUSED BY FLOODING, REACH A EVACUATION OF HOMES RELOCATION OF RESIDENTS. SOCIAL DISRUPTIONS TO CONTINUE DURING FLOOD STAGES 1 * displacement of people NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT TEMPORARY DISPLACEMENT DURING FLOODS * ADVERSE EMPLOYMENT EFFECTS NONE NONE NONE NONE MAY REDUCE EMPLOYMENT - OPPORTUNITIES POSSIBLE ADVERSE EFFECTS ACRES PROTECTED 330 330 390 514 330 IN REACH.^ INDIVIDUAL 'STRUCTURES IN REACHES B AND C 0 STRUCTURES PROTECTED 26 INDUSTRIES 47 RESIDENCES 135 STORES 8 PUBLIC BUILDINGS 26 INDUSTRIES 47 RESIDENCES 135 STORES 9 PUBLIC BUILDINGS 33 INDUSTRIES 109 RESIDENCES 157 STORES 9 PUBLIC BUILDINGS 42 INDUSTRIES 152 RESIDENCES 165 STORES 14 PUBLIC BUILDINGS SAME AS ALTERNATE 1 PLUS additional structures IN REACH B AND C DEPENDING UPON CONDITION OF STRUCTURES. none * DISPLACEMENT OF FARMS 0 0 0 - - > - 0 0 0 ♦ DISPLACEMENT OF MAN-MADE RESOURCES AND BUSINESS 0 0 0 0 DEPENDING UPON NUMBER OF STRUCTURES TO BE FLOODPROOFED MAXIMUM OF 30 STORES, 16 INDUSTRIES 1 04 RESIDENCES 5 PUBLIC BUILDINGS 0 TRANSPORT ATION temporary interruptions DURING CONSTRUCTION AND FLOOD STAGE WHEN CLOSURE STRUCTURES ARE IN PLACE. TEMPORARY INTERRUPTIONS DURING CONSTRUCTION AND FLOOD STAGE WHEN CLOSURE STRUCTURES ARE IN PLACE temporary interruptions DURING CONSTRUCTION AND FLOOD STAGE- when closure structures are IN PLACE TEMPORARY INTERRUPTIONS DURING CONSTRUCTION AND FLOOD STAGE WHEN CLOSURE STRUCTURES ARE IN PLACE. TEMPORARY INTERRUPTIONS .DURING CONSTRUCTION AND FLOOD STAGE WHEN CLOSURE STRUCTURES ARE IN PLACE. CONTINUED INTERRUPTIONS TO ROADS AND RAILROADS DURING flood stages. * UTILITIES PREVENTS DISRUPTION IN REACH A, EXCLUDING SYLVAN ISLAND. PREVENTS DISRUPTIONS IN REACH A, INCLUDING SYLVAN ISLAND. PROTECTS REACH 'A AND C. PROTECTS REACH A, B AND C. POTENTIAL DISRUPTIONS DURING FLOODING REACH B AND C. PROTECTS REACH A v NO PROTECTION PROVIDED HISTORIC AND ARCHAEOLOGICAL SITES PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT PRESERVES TWO HISTORIC SITES, NO OTHER IMPACT NO PRESERVATION PROVIDED NO archaeological impact RECREATION PROVIDES FACILITIES FOR PARKS AND FISHING AREAS. TEMPORARY DISRUPTION OF FISHING. PROVIDES FACILITIES FOR PARKS AND FISHING AREAS: INCLUDES PARK BETWEEN 16TH AND 20TH STREETS. TEMPORARY DISRU PTION TO FISHING. ELIMINATES EXISTING LAND REACH C PROPOSED FOR PARK PROPOSES FILL TO HARBOR LINE, REACH C: PROVIDES FACILITIES FOR PARKS and fishjng areas includes park BETWEEN 1 6 T H AND 20T H STREETS. temporary DISRUPTION TO FISHING ELIMINATES EXISTING PARK REACH B ELIMINATES EXISTING LAND REACH C PROPOSED FOR PARK PROPOSES FILL TO HARBOR LINE REACH C. PROVIDES FACILITIES FOR PARKS and fishing areas, INCLUDES PARK BETWEEN 16TH AND 20TH STREETS. TEMPORARY DISRUPTIONS TO FISH 1 NG . PROVIDES FACILITIES FOR PARKS AND FISHING AREAS. DEVELOP OPEN SPACE LAND REACH B INCLUDES PARK BETWEEN 16TH AND 20TH STREETS TEMPORARY DISRUPTIONS TO FISHING. none ♦ ESTHETICS, NOISE, AND AIR QUALITY TEMPORARY NOISE DUST AND EXHAUST POLLUTION DURING CONSTRUCTION VISUAL BARRIER FROM ACROSS THE RIVER TEMPORARY NOISE, DUST AND EXHAUST POLLUTION DURING CONSTRUCTION. VISUAL BARRIER FROM ACROSS THE RIVER. temporary noise, dust and EXHAUST POLLUTION DURING CONSTRUCTION VISUAL BARRIER FROM ACROSS THE RIVER. CLEAN-UP DEBRIS AND LANDSCAPE REACH C temporary noise dust AND EXHAUST POLLUTION DURING CONSTRUCTION VISUAL BARRIER FROM ACROSS THE RIVER CLEAN-UP DEBRIS AND LANDSCAPE REACH C. TEMPORARY NOISE, DUST AND EXHAUST POLLUTION DURING CONSTRUCTION. VISUAL BARRIER FROM ACROSS THE RIVER. NON E * BUSINESS AND INDUSTRIAL ACTIVITY WILL ALLOW CONT.NUED OPERATION IN REACH A WILL ALLOW CONTINUED OPERATION IN REACH A WILL ALLOW CONTINUED OPERATION IN REACH A AND C WILL ALLOW CONTINUED OPERATION IN ALL REACHES MAY PARTIALLY IMPAIR NORMAL OPERATION "IN REACHES B AND C DISRUPTION OF ACTIVITIES DURING FLOODS ♦ DESIREABLE REGIONAL GROWTH NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT NO SIGNIFICANT EFFECT . PROPOSED REDEVELOPMENT PROJECT BENEFITS INCLUDE PROTECTION OF AREAS PROPOSED FOR REDEVELOPMENT BENEFITS INCLUDE 18TH STREET TOE FOR PARK AND PROTECTION OF AREAS PROPOSED FOR redevelopment BENEFITS INCLUDE I6TH STREET TOE FOR PARK AND PROTECTION OF AREAS PROPOSED FOR REDEVELOPMENT. BENEFITS INCLUDE 18TH STREET TOE FOR PARK AND PROTECTION OF AREAS PROPOSED FOR REDEVELOPMENT BENEFITS INCLUDE 18TH STREET TOE FOR PARK AND PROTECTION OF AREA PROPOSED FOR REDEVELOPMENT. NONE POTENTIAL BUSINESS EXPANSION MAY ENCOURAGE BUSINESS EXPANSION, reach a. levee FLOODWALL STRUCTURE WILL INTERRUPT SOME EXISTING BUSINESS ACTIVITIES. may ENCOURAGE BUSINESS EXPANSION, REACH A. MAY ENCOURAGE BUSINESS EXPANSION. REACH A AND C MAY ENCOURAGE BUSINESS EXPANSION REACH A B AND C. MAY ENCOURAGE BUSINESS EXPANSION REACH A DISRUPT AND dislocate business reach b and c. NONE ♦ TAX REVENUE AND PROPERTY VALUES MINOR POSITIVE EFFECT minor positive effect MINOR POSITIVE EFFECT MINOR POSITIVE EFFECT NO SIGN 1 F 1C ANT EFFECT MINOR ADVERSE EFFECT ESTIMATED FLOOD CONTROL BENEFITS (ANNUAL) S416,300* S400.500 5432,700 $462,700 AVERAGE ANNUAL LOSSES FROM FLOOD DAMAGE OF S2 2d 300 WOU LC CONT'NUE LOCATION BENEFITS (ANNUAL) SI 8 000 SI 8,000 SI 8 000 -518 000 IB AND C ONLY) FUTURE BENEFITS (ANNUAL) S459.500* S992.1 00 S 1 . 100 600 51217 200 5179.100 (B AND C ONLY) TOTAL BENEFITS (ANNUAL) S875.800* Si 4 10 000 SI 551 300 S 1 697 900 S248 100 (B AND C ONLY' ESTIMATED PROJECT COSTS SS.638,000 * S13.266.000 S 16,178,000 5 19.507,000 (53,329.000)** FLOODPROOFING costs OF S4 275.000 ELIMINATED THIS alternative from further SCRUTINY ESTIMATED ANNUAL CHARGES S 358,5 20 * S 872,300 5 1 .013.500 s 1,213,500 IS2 1 8,000) • * BENEFIT-COST RATIO 2.23 1 .62 1.53 1.40 ( . 67 ) • • •1970 DOLLARS • “ REACH B ONLY * REQUIRED BY SECTION 122, RIVER AND HARBOR FLOOD CONTROL ACT 1970 PUBLIC LAW 91-61 1 SUMMARY OF IMPACTS FOR EACH ALTERNATIVE APPENDIX A GLOSSARY OF TERMS Alluvium Aquifer Aquilude Archaeological Avian Backwater Bedrock Earth materials, reworked, carried and deposited by modern streams. A stratum or zone below the surface of the earth capable of transporting and storing water. The water usually flows through pores or cracks in the rock. A layer of rock impervious to water. Water will not travel in or through the rock. Relates to occupation sites, work areas, evidence of farming or hunting and gathering, burial sites, artifacts, and structures of all types, usually dating from prehistoric or aboriginal periods, or from historic periods and non¬ aboriginal activities for which only vestiges remain. Scientific term for birds. Water which is turned back in its course by an obstruction, an opposing current or the tide. The solid rock underlying soils and the regolith in depths ranging from zero (where exposed by erosion) to several hundred feet. The numerical ratio of the expected annual cost of a project and the expected annual benefit of implementa¬ tion of the project. Benefit-Cost Ratio APPENDIX A (cont'd) APPENDIX A (cont'd) ^ Benthic As related to Benthos--plants and animals living on the bottom of a sea or a lake, from high water marks down to the deepest levels. B enthos Plants and animals living on the bottom of a sea, lake or other bodies of water. Biome Where climates interact with regional biota (plants and animals) and substrate (soils, minerals, etc. ) to produce large, easily recognizable community units; i. e. , the tundra, temperate grasslands, deserts, etc. Biota The plant and animal life of a given locale, area or region. Bottomlands The nearly level land forming the bottom of a valley in which a stream is present and usually subject to flooding. Borrow Area A land area where soils, gravel, or rock are obtained for use elsewhere. Coliform Bacteria normally found in the human intestine whose presence in water in sufficient numbers indicates the possi¬ bility of contamination by inadequately treated sewage. Conifer Any of a large group of cone-bearing trees and shrubs, mostly evergreens, as the pine, spruce, fir, cedar, yew, etc. Cropland Lands utilized for production of agri¬ cultural crops. \ A-2 r>) Cubic Feet Per Second (cfs) Deciduous Drainage Basin Ecosystem Ecotone Endangered Species Environment 1 Esker Esthetics Exotic APPENDIX A (cont'd) Rate of flow of a measured volume of water. Trees or shrubs that shed their leaves annually. Refers to the area of land drained by the designated stream or river. All of the animal populations occupying a given area and the non-living portions of the environment. The area of transition between two distinct ecosystems which features members of the communities of both ecosystems. A species of native fish or wildlife whose existence is endangered because its habitat is threatened with des¬ truction, drastic modification, or severe curtailment, or because of over-exploitation, disease, predation, or because of other factors, and that its survival requires assistance. All the conditions , circumstances, and influences surrounding and affecting the development of an organism or group of organisms. A long, narrow ridge or mound of sand, gravel and boulders deposited by a stream flowing on, within or beneath a stationary glacier. B eauty-- either natural, artificial or implied. Refers to species that have been intro¬ duced from another environment. A-3 APPENDIX A (cont'd) F auna F ee Title Flood Plain Floodwall Flora Future Flood Damage Reduction Benefits Gene Pool Geomorphology Glacial Drift Groundwater Habitat Refers to all animal species found in an area. An estate in land which is absolute; full, complete ownership. Land adjacent to a water course which is likely to be inundated in the event of a flood. A wall which is anchored in the ground for the purpose of impeding the passage of floodwater. Refers to all the plant species found in an area. Benefits from flood damage reduction in the future attributed to a community by implementation of a flood protection proj ect. Refers to all the genetic material con¬ tained in all the populations of a species. Refers to the land features of the earth's surface. Rock debris that has been transported by glaciers and deposited, either directly from the ice or from the melt-water. The debris may or may not be hetero- g eneous. Water that fills all the unblocked pores of underlying material below the water table, which is the upper limit of s atur ation. The environment: usually the natural environment in which a population of plants or animals occurs. A-4 APPENDIX A (cont'd) Historical References to features generally con¬ sisting of structures or site locations which are relevant to an event, person, or period specifically commemorative to previous generations. Hydrology A science dealing with the properties, distribution and circulation of water on the surface of land, in the soil, and underlying rocks, and in the atmosphere. Hydrophytic Pertaining to plants which grow wholly or partly immersed in water. Igneous Rock once liquid in nature that has since cooled under conditions of high pressure. Impervious Material Earth materials which will not permit passage of water, such as clays. Impoundment An artificial barrier for the confining or collecting of water. Inundation An overflow of water; flooding. Invertebrate Animals having no backbone or spinal column; i. e. , worms, fleas, snails, etc. Karrie * \ A short ridge, hill, or mound of strati¬ fied drift deposited by glacial melt¬ water . Lentic Standing water conditions such as lakes, ponds, or swamps. Levee A ridge of earth for confining flood waters Loam The textural class name for soil having a moderate amount of sand, silt and clay. A- 5 APPENDIX A (cont'd) Location Benefit Benefits earned by the more intense utilization of land previously prone to flooding. Loes s Material transported and deposited by wind and consisting of predominantly silt-sized particles. Lotic Flowing or running water conditions such as a spring, creek or river. Marsh An area of wet or periodically inundated land, generally treeless and usually dominated by such vegetation as grasses, sedges, cattails or rushes. Mesic A moisture classification--intermediate between wet and dry. Mesophyte Any plant growing where moisture and aeration conditions lie well between extremes. Morphology Refers to the form structure of an organism such as a plant. M.S. L. Mean sea level. Outlet Works The part of a dam which regulates dis¬ charge flows from the water impounded. Outwash The materials washed to the front of a glacier by melting water from the glacier. Parent Material The rock that a soil type came from. Permeability The ease with which gases, liquids or plant roots penetrate or pass through a bulk mass of soil or a layer of soil. A-6 APPENDIX A (cont'd) Physiography A description of nature or natural phenomena in general. Plant Community A naturally occurring assemblage of plants that live in the same environ¬ ment. Prairie A plant community dominated by grasses and forbs and generally occurring in areas that have ten to 30 inches of rainfall annually. Raptorial Pertaining to a predatory animal that has feet with curved, sharp claws adapted for seizing prey. R each The particular elevation of flood waters on the land and normally the physical boundary of the study area. Riparian Refers to streamside vegetation. Riprap A layer, facing or protective mound of stones randomly placed to prevent erosion, scour or sloughing of a structure or embankment. Slough A minor waterway or estuarial creek, tributary to, or connecting, other streams or bodies of water. SMSA Standard metropolitan statistical area. Soil Association A group of defined and named taxonomic soil units occurring together in an individual and characteristic pattern over a geographic region; comparable to plant associations in many ways. APPENDIX A (cont'd) Soil Series The basic unit of soil classification being a subdivision of a family and consisting of soils which are essen¬ tially alike in all major profile characteristics except the texture of the A horizon. Species A group of actually or potentially interbreeding populations that are reproductively isolated from other such groups. Standard Project Flood The flood that may be expected from the most severe combination of mete¬ orological and hydrological conditions that are considered reasonably characteristic of the geographical area in which the drainage basin is located, excluding extremely rare combinations. It is not practicable to assign a frequency to the Standard Project Flood. The occurance of such a flood would be an extremely rare event although it could occur in any year. Stream Order A method of classifying streams based on the arrangement of tributaries. Substrate A medium upon which an organism grows; a base, or foundation. Succession The orderly and progressive replace¬ ment of one community by another until a relatively stable community occupies the area. T errace A level, usually narrow, plain bordering a river, lake, or the sea. T errestrial Those organisms (plants and animals) that live on land as opposed to aquatic or those that live in the water. A- 8 APPENDIX A (concluded) Toe An extension of land from the shore or levee toward the river, generally flat or gently sloping, with a riprap facing on the river. Tract (Real Estate) A stretch or extent of land. Turbidity A measure of the eluded or muddy appearance of water. Understory Perennial plants and small trees, generally recognized as the under¬ brush of the forest. Uplands For purposes of this report, refers to habitat and associated species in the upper (land) elevations of the project, as opposed to that found within the floodplain. Vascular Refers to plants that have developed systems for the transport of liquids: mosses, ferns and flowering plants. Water Table The depth below which the ground is saturated with water. (C ’ 1 ) APPENDIX B FAUNA IN THE MOLINE PROJECT FLOOD AREA Fishes in the Mississippi River Species Collected 1971-1974 1 Paddlefish Longnose gar Bowfin Gizzard shad Mooneye Carp River carpsucker Quillback carpsucker Highfin carpsucker Spotted sucker Smallmouth buffalo Bigmouth Buffalo Shorthead redhorse Channel catfish Flathead catfish White bass Green sunfish Orangespotted sunfish Bluegill Largemouth bass White crappie Black crappie Yellow perch Sauger Walleye Freshwater drum Polyodon spathula Lepisosteus osseus Amia calva Dorosoma cepedianum Hiodon tergisus Cyprinus carpio Carpiodes carpio Carpiodes cyprinus Carpiodes velifer Minytrema melanops Ictiobus bubalus Ictiobus cyprinellus Moxostoma macrolepidotum Ictalurus punctatus Pylodictis olivaris Morone chrysops Lepomis cyanellus Lepomis humilis Lepomis macrochirus Micropterus salmoides Pomoxis annularis Pomoxis nigromaculatus Perea flavescens Stizostedion canadense Stizostedion vitreum Aplodinotus grunniens s 1 - Illinois State Department of Conservation. B-l APPENDIX B (cont'd) Additional Species Recorded in Pool 15 Silvery lamprey Shovelnose Shortnose gar American Eel Silver chub Emerald shiner River shiner Spottail shiner Spotfin shiner Sand shiner Sucker mouth minnow Bullhead minnow White sucker Blue sucker Northern hogsucker Black bullhead Tadpole madtom Brook silverside Yellow bass Wa r mouth Smallmouth bass Johnny darter Ichthyomyzon unicuspis Scaphirhynchus platorynchus Lepisosteus platostomus Anguilla rostrata Hybopsis storeriana Notropis atherinoides Notropis blennius Notropis hudsonius Notropis spilopterus Notropis stramineus Phenacobius mirabilis Pimephales vigilax Catostomus commersoni Cycleptus elongatus Hypenteluim nigricans Ictalurus me la s Noturus gyrinus Labidesthes sicculus Morone mis sis sippiensis Lepomis gulosus Mic ropterus dolomieui Etheostoma nigrum 2 - Smith, Philip W. , A. C. Lopinot and W. C. Pfliefer "A Distributional Atlas of Upper Mississippi River Fishes. Illinois Natural History Survey, Biological Notes No. 73. Ma y 1971. B-2 APPENDIX B (cont'd) Common Bird Species Legend: Location (Place of most Residence Status common occurrence) R - Mississippi River S - Riverfront shoreline U - Urban areas M - Migratory visitor B - Migratory but breeding locally R - Permanent resident Species Location Residence Status Pied-billed Grebe R B Double-crested Cormorant R B Great Blue Heron R B Common Egret R B Black-crowned Night Heron R B Canada Goose R M Mallard R R Pintail R M Blue-winged Teal R B American Wigeon R M Wood Duck R B Lesser Scaup R M Common Golden-eye R M Ruddy Duck R B Hooded Merganser R B Common Merganser R M Red-tailed Hawk S R Red-shouldered Hawk S R Bald Eagle S M American Kestrel S R American Coot R B Killdeer S B Spotted Sandpiper S B Herring Gull R M Ring-billed Gull R M 3 - Compiled from Fawks, E. and P. Peterson, 1961 "A Field List of Birds of the Tri- City Region. " B-3 APPENDIX B (cont’d) Rock Dove U Common Nighthawk U Belted Kingfisher R Common Flicker S Red-bellied Woodpecker S Downy Woodpecker S Eastern Phoebe S Eastern Wood Pewee S Tree Swallow A Purple Martin U Blue Jay S Common Crow S Black-capped Chickadee S Tufted Titmouse S White-breasted Nuthatch S House Wren S Gray Catbird S American Robin U Eastern Bluebird U Starling U Red-eyed Vireo U Warbling Vireo U Yellow Warbler S Yellowthroat S American Redstart S House Sparrow U Red-winged Blackbird S Northern Oriole U Common Grackle S Cardinal U Indigo Bunting U American Goldfinch U Dark-eyed Junco S Chipping Sparrow S Song Sparrow S R B R R R R B B B B R R R R R B B R R R B B B B B R B B B R B B M B R B-4 APPENDIX B (cont'd) 4 Probable Mammals in the Project Area Opposum Eastern Mole Short-tailed Shrew Raccoon Mink Striped Skunk Red Fox Western Harvest Mouse Meadow Vole Common Muskrat Norway Rat Hous e Mous e Meadow Jumping Mouse Eastern Cottontail Didelphis marsupialis Scalopus aquatic us Blarina brevicauda Procyon lotor Mustela vis on Mephitis mephitis Vulpes fulva Reithrodontomys megalotis Mic rotus pennsylvanicus Ondatra zibethicus Rattus norvegicus Mus musculus Zapus hudsonius Sylvilagus floridanus 4 - Sources include: Augustana Research Foundation, 1973. Environmental Inventory for Moline, Illinois, and Hoffmeister, D. F. and C. O. Mohr, 1972. Fieldbook of Illinois Mammals. B-5 APPENDIX C (Cont'd) r Mr. Frank Collins 2 3 June 1975 Our survey was not able to test for the existence of archeological sites buried deeper than 1/2 meter below'the present surface. It is therefore recommended that an archeologist be present when excavation for the seawall is made. This recommendation also holds for any excavations made for the foundations of the pumping stations to be located along the levee. Reports of archeological sites along this portion of the river shore were made in the nineteenth century, and if the excavations for the seawall or pumping stations cut into the buried shoreline, it is likely that some archeological material will be exposed. The proposed borrow area for the project, located on land owned by the City of Moline in sections 24 and 25, Township 17N, Range 1W, Rock Island County, vas also investigated by pedestrian survey. Twenty archeological sites were found on this property, none of which had been previously reported. IVe have included a sketch map giving the location of the sites. Sixteen of the sites are located on the bluff tops from which fill is to be taken for the proposed levee. More archeological work will be required before the fill can be removed, and it is likely that further testing will show that one or more of the sites are of sufficient importance to be nominated to the National Register and preserved. Furthermore, the density of archeological sites in the proposed borrow area will make archeological testing a fairly expensive proposition, and it may be more expedient to find another borrow area. Costs could also be reduced by reducing the size of the proposed borrow area, if that is possible. Archeological testing of only a part of the area would naturally be less expensive. Let us take this opportunity to thank you for the cooperation you gave us. The hospitality and cooperation offered by the Corps of Engineers, the City Engineer of Moline, and the Moline Parks Commission made our work there exceptionally pleasant. Sincerely, Ur. Elizabeth Benchley Contract Archeologist cc: Moline City Engineer Moline Parks Commission Charles Bareis EB: lw ewe C-2 ECONOMIC DATA SHEET SUMMARY ECONOMIC DATA SHEET ECONOMIC DATA, EXTRACTED FROM US ARMY CORPS OF ENGINEERS GENERAL DESIGN MEMORANDUM - MOLINE, ILLINOIS COMPLETE DOCUMENT IS AVAILABLE AT US ARMY ENGINEER DISTRICT, ROCK ISLAND, ILLINOIS C-l This section presents a summarization of the estimated costs and benefits of the selected plan described in previous sections, together with the benefit-cost-ratio. COSTS C-2 First costs were estimated for the selected plan based on design of levees, floodwalls, closure structures, pumping stations, and other related structures. Construction costs were based on 1978 unit prices and included a 20-percent contingency. Annual charges were calculated based on an assumed 100-year project life at 6-5/8 percent interest. Estimated first costs are summarized in Table S-l. Estimated annual charges, separated into Federal and Non-Federal costs, are shown in Table S-2. BENEFITS C-3 Methodology used in the development of benefits for the pro¬ posed flood protection project was in accordance with Standard Procedure and ER 1105-2-351. Benefits were estimated as damages prevented; the latter were based on surveys relating damages to flood elevations. SUMMARY TABLE 1 ESTIMATED FIRST COSTS Description Lands and Damages Relocations Levees and Floodwalls Drainage Facilities Mitigation and Beautification Total Contract Cost Federal $ 40,000 9,420,000 3,000,000 590,000 $13,050,000 Government Costs: Engineering and Design 1,425,000 Supervision/Administration 975,000 Total First Costs $15,450,000 Non- Federal $1,725,000 75,000 $1,800,000 $1,800,000 2 SUMMARY TABLE 2 ESTIMATED ANNUAL CHARGES FEDERAL First Costs $15,450,000 Interest During Construction 1 ,023,562 Gross Investment $16,473,562 Total Federal Annual Charges $ 1,093,186 NON-FEDERAL First Costs $1,800,000 Interest During Construction 199,250 Gross Investment $1,919,250 Annual Charges 127,361 Operation, Maintenance and Replacement 27,190 Total Non-Federal Annual Charges $ 154,551 Total Annual Charges $1,247,737 C-4 In addition to prevention of damages to structures and con¬ tents, benefits also include prevention of loss of production, floodfighting costs, wage losses and clean-up. C-5 Benefits were calculated for three differenct sets of con¬ ditions of economic activity in the floodplain: * Existing conditions * Conditions with enhancement or location benefits * Future conditions, reflecting normal anticipated economic growth and development during the life of the project (1981-2081) The following table presents a summary of the benefits: SUMMARY TABLE 3 SUMMARY OF ANNUAL BENEFITS Existing Damage Reduction $ 502,800 Redevelopment 329,200 Location 57,500 Net Future Damage Reduction 694,700 Total $1,584,200 4 THE BENEFIT-COST RATIO C-6 In determining the feasibility of constructing the proposed flood protection, the average annual benefits are compared with the average annual costs. For the plan to be economically justified, the benefit cost ratio must be greater than one. Benefit cost ratio is shown on the following table: SUMMARY TABLE 5 BENEFIT COST RATIO FOR THE SELECTED PLAN Average Annual Benefits Average Annual Cost Benefit Cost Ratio $1,584,200 $1,247,700 1.3 5 * DISTRIBUTION LIST DISTRIBUTION LIST FOR PHASE I GENERAL DESIGN MEMORANDUM AND FINAL ENVIRONMENTAL IMPACT STATEMENT MISSISSIPPI RIVER FLOOD PROTECTION MOLINE, ILLINOIS DISTRIBUTION EXTERNAL DIVISION ENGINEER,U,S,ARMY £NGR # DlV,,NQRTH CE NjRAL 536 SOUTH CLARK STREET # CHICAGO, IL 60605 HONORABLE ADLAI E,STEVENSON III,UNITED STATES SENATOR,POOH 108,POST OFFICE BLDG,,600 E.MONRnE, SPRINGFIELD,ILL 62701 HONORABLE CHARLES H t PERCY,UNITED STATES SENATOR, ROOM U7,OLD ROST OFFICE BUILDING,SPRINGFIELD, ILL ,62701 honorable Thomas f.railsback,representative in CONGRESS,228 FEDERAL BlDG # ,RQCK ISLAND,ILL, 6j201 HONORABLE DON WOOTEN,ILLI NO IS SENATOR,10J4»23Rd STREET,ROCK ISLAND,IL,61201 HONORABLE BEN POLK,ILLINOIS REPRESENTATIVE, 4602»8TH AVENUE,MOLINE,11,61265 HONORABLE CLARENCE A,DARRQw,ILLINOIS REPRESENTATIVE,2515 • 36TH STREET,ROCK ISLAND,IL 61201 HONORABLE ORAL JACOBS,ILL I NO IS REPRESENTATIVE,p,0, BOX 413,EAST MQLINE,It,61244 DIRECTOR,OFF ICE OF REVIE* ♦ COMPLIANCE,ADVlSQRy COUNCIL ON HISTORIC PRESERV,1522 K ST,N # W f , WASHINGTON, DC 20005 DIRECTOR,OFFICE OF FEDERAL ACTIVITIES, ENVIRONMENTAL PROTECTION AGENCY,401 M STREET S.*. WASHINGTON,D # C, 20460 chief,ofc of archaeology&historic presv,heritage CONSV & RECREATION SERVICE,WASHINGTON, D,C, UNITED STATES DEPT,OF THE IN TER I OR, HER I T AGfc COnjSV, ^RECREATION SERVICE,7i0 PEACHTREE ST f ,RM,1010, ATLANTA,GA 30308 * Furnished copy of Supplement No. 1 - Interior Drainage COPY NUMBER 1-15* 16 17 18 19 20 21 22 23 24 25 26 COPY NIUMBtR REGIONAL FORESTER AND A RL A DI RF C TOR , F QRE 8 T SERVICE,U.S.DEPT,OF AGRI,,633 WEST WISCONSIN AVENUE,MILWAUKEE, WI B3203 27 STATE CONSERVATIONIST, SOIL CONSERVATION SERVICED, S,DEPARTMENT OF AGRICULTURE,P.O.BOX 678, 200 WEST CHURCH STREET,CHAMPAIGN,IL 61820 28 DEPUTY ASST.8EC.F0R ENVlR, AFFAIRS,U*S f DEPARTMENT OF COMMERCE,WASHINGTON,D.C, 2023*5 29-35 WATER resources coordinator,office OF THE SECRETARY/OPDC.U.S.DEPT.OF COMMERCE,WASHINGTON,©, C. 20230 36 REGIONAL DIRECTOR,NATIONAL MARINE FISHERIES SERVICE,FEDERAL BUILDING,14 ELM STREET, GLOUCESTER,MASS 01930 37 REGIONAL DIRECTOR,NATIONAL MARINE FISHERIES SERVICE,DUVAL BLDG,,9450 GANDY BLVD,,ST, PETERSBURG,FLORIDA 33702 38 DEPT,OF COMMERCE (NOAA),NATI,wtATHER SERV,, CENTRAL REGION,ATTN REGIONAL HYDROLOGIST,ROOM 1836,601 E.12TH ST,,KANSAS CITY,MO, 641Q6 39 REGIONAL ENVIRON OFCR,PHS REGION V, ONEw,ROOM 7 12 , NEw POST OFFICE BUILDING,433 WEST VAN BUREN $T, CHICAGO, IL 60607 40 WATER RESOURCES ACT I V ITY,VECTOR BIOLOGY AND CONTROL DIVISION,BUREAU OF TROPICAL DISEASES, CENTER FOR DISEASE CONTROL,ATLANTA,GA 30333 41 REGIONAL ADMINISTRATOR,REGION V,DHUD,30Q S.waCkER DRIVE,CHIC AGO, 11,60606 42-46 AREA OFFICE DI RECTOR,REGI ON V,DHUD,17 NORTH DEARBORN STREET,CHIC AGO,IL 60602 47 COPY NUMBER ASST,SEC,PROGRAM POLICY,ATTN OFF,OF ENVIR.PROj, RE VIEW, DEPT, OF INTERIOR,WASH INGTON,D,C, 20 240 48-50* REGIONAL ENVIRONMENTAL REVIEW OFCR,U$ DEPARTMENT OF THE INTERIOR,2510 OEMPSTER ST, SUITE 217,D£S 51 PLAINES, IL 60016 REGIONAL FED HWY ADMINISTRATOR,REGION 5# 18206 DIXIE HIGHWAY, HOMEWOOD, IL 604*0 52 REGIONAL DIRECTOR*REGION 4,FEDERAL RAILROAD ADMINISTRATION,516 S, CLARK STREET,ROOM 752, 53 CHICAGO,ILL, 60605 COMMANDER,SECOND COAST GUARD 01 ST ,,D,0,T,,FEDERAL SLDG.iIRSO OLIVE STREET,ST, LOUIS, MO 6110S 54 REGIONAL ADMINISTRATOR,EPA, REGION V,2S0 SOUTH DEARBORN ST,CHICAGO, IL 60606 ’55* DIRECTOR,ENVIR,IMPACT DIV,,OFF # OF ENVI RON f PROGs,, FED.ENER.ADM,,NEW POST OFF , BLDG, , 1 2TH AND 56-60 PENNSYLVANIA AVE,,N,W,,WASHINGTON,D,C, 20461 ADV,ON ENV,QUALITY,FEDERAL POWER COMMISSION,82? N, CAPITOL ST,N,£,,ROOM 7408,WASHINGTON, DC 204^6 61 REGIONAL ENGINEER,FEDERAL POWER COMMISSION,31 St FLOOR, FEDERAL BUILDING,230 SOUTH DEARBORN ST, 62 CHICAGO, IL 60604 NATIONAL RESEARCH COUNCIL,COMM ISSI ON ON NATURAL RESOURCES,2101 CONSTITUTION AVE,WASH INGTON, Dc 63 20418 CHAIRMAN,UPPER MISSISSIPPI RIVER BASIN COMM,RM f 510,FED,OFF,BLDG,,FORT SNELLlNG,TWIN CITIES, mN 64* 55111 COMMANDING 0FFICER,R0C* island arsenal,ROCK ISLAND,IL 61201 65* * Furnished copy of Supplement No. 1 - Interior Drainage COPY NUMBER DISTRICT ENGINEER,US ARMY E NGH QIST, OMAHA,601a USPO + COURTHOUSE,215 N, 17TH ST,,OMAHA, NE 66* 6 8 10 2 COORDINATOR,STATE CLEARINGHOUSE,LINCOLN TWR.PLzA, 52a S, 2 ND STREET,RM.315,SPRINGFIELD,ILL 62706 67* DIRECTOR,DIVISION OF WATER RESOURCES,ILLINOIS DEPT.OF TRANSPORTATION,2300 S.DIRKSON PARKWAY, 68 * SPRINGEIELD,IL 62764 DIRECTOR,ILLINOIS DEPT, OF CONSERVATI ON,614 STRATTON BLDG,,SPRINGFI ELD,IL 62706 69* STATE HISTORIC PRESERVATION OFFICER,ILL1 NO IS DfPT, OF CONSERVATION,614 STATE OFFICE BLDG,, 70* SPRINGFIELD,IL 62706 ILLINOIS STATE HISTORICAL SOCIETY,OLD STATE CAPITOL,SPRINGFIELD,ILLt 62706 71 PRESIDENT,SIERRA CLUB,530 BUSH STREET,SAN FRANCISCO, CA 94108 72 MIDWEST REPRESENTATIVE,THE SIERRA CLUB,414 W,M A IN, ROOM 10,MADISON,W1 53703 73 environmental affairs director,izaak walton LEAGUE OF AMERICA,1800 N KENT ST, SUITE 806, 74 ARLINGTON, VA 22209 PRESIDENT,IZAAK WALTON LEAGUE OF AMtRlCA, INC, ILLINOIS DIVISION, RR l,METAMQRA, IL 61548 75 PRESIDENT,NATIONAL AUDUBON SOCIETY,950 THIRD AyE, NEW YORK, NY 10022 76 PRESIDENT,AUDUBON COUNCIL OF I LII NOIS,NATI ONAL AUDUBON SOCIETY,615 ROCHDALE CIRCLE,LOMBARD, JL 77 60148 * Furnished copy of Supplement No. 1 - Interior Drainage 4 COPY NUMBER ►) PRESIDENT,NATIONAL WILDLIFE federation, ui 2 • l 6 TH ST,,N,W, f WASHINGTON, D f c, 20036 PRESIDENT,ILLINOIS WILDLIFE FEDERATION,BOX U 6 ( BLUE ISLAND, IL 60606 39 PRESIDENT,NATL ASSOC CONSERVATION DISTS,102S VERMONT AVI, NW,WASHINGTON, DC 2000b 80 PRESIDENT,ILL ASSOC-SOIL ♦ WATER CONSERV D 1 STS, POLO, IL 61064 81 PRESIDENT,NATIONAL WATER RESOURCES ASSOC,,955 L"ENFANT plaza,NORTH,S,w, *1202,WASHINGTON,DC 88 20024 MR,MORRIS mqCLINTOCK,ENVIRONMENTAL POLICY CENTER, 117 PENNSYLVANIA AVE # ,S,E,,WASHINGTON,D,C, 20fl0i 88 PRESIDENT,LEAGUE OF WOMEN VOTERS OF THE U # $,,l7l0 M STREET,N,w t ,WASHINGTON,D f C, 20036 84 PROFESSOR H.PAUL FRIESEMA,CENTER FOR URBAN AFFaIRS NORTHWESTERN UNIVERSITY,2040 SHERIDAN ROAD, 85 EVANSTON,IL 60201 EXECUTIVE DIRECTOR,THE COALITION On AMERICAN 86 RIVERS,P.O.BOX 2667,STATION A,CHAMPA IGN,ILL, 61620 DIRECTOR, INSTITUTE OF ENV IRON .STUDIES, SAINT LOllIS UNIVERSITY,221 N,GRAND BLVD, #ST .LOUIS,MO 63101 87 DIRECTOR,INSTITUTE OF URBAN & REGNL. RESEARCH, UNIVERSITY OF IOWA,IQwA C I T Y,X A 52240 88 Illinois state library,centennial blog,, SPRINGFIELD,IL 62756 89 PRESIDENT,QUAD CITIES ARE A,ARCHEOLOGICAL SOCIETY# 1201 WASHINGTON,DAVENPORT,JA 52801 90 5 COPY NUMBER ROCK ISLAND CTY BD OF SUPERVISORS,ROCK island COURTHOUSE,1504 3RD AVENUE,ROCK ISLAND, IL 6 I 2 OI MR, JACK D, JOHNSOn # ROCK ISLAND COUNTY HEALTH DE PARTMENT,2116 25TH AVENUE,ROCK ISLAnO, IL 6j201 MAYOR OF MOLINE,CITY HALL,MOLINE, IL 61265 MOLINE PARK & RECREATION DEPARTMENT,3300 5TH AVENUE,MOLINE, ILLINOIS 61265 CITY ADMINISTRATOR * MOLINE,619 16TH STREET, MOLINE, IL 61?65 DIRECTOR,PLANNING t DEVELOPMENT OFFICE,619 16Th STREET,MOLINE, IL 61265 WATER POLLUTION CONTROL DEPARTMENT,619 16TH STREET mQLINE, IL 61265 CITY ENGINEER . MOLINE,619 16Th STREET,MOL INE, ILLINOIS 61265 MAYOR OF EAST MQLINE,CITY HALL,EAST MOLINE, IL 61244 Mayor OF ROCK ISLAND,1528 3RD AVENUE,ROCK ISLAnD, IL 61201 MR, JAMES 0, ELLlS,MOLlNt CONSUMERS COMPANY,31 3 1 6 TH STREET,MOLINE, IL 61265 MR, ELTON FAwKS, AUDUBON SOCIETY,510 ISLAND AVEnUE, EAST MQLINfc, il 61244 plant supervisor,oeere and company,mqline, il 61265 MR, R, 0, SCHAEFFER,VICE PRESlDENT,MONTGOMERY ELEVATOR CO,,MOLINE, IL 61265 91 92 93* 94* 95* 96* 97* 98* 99* 100 * 101 * 102 * 103* 104* * Furnished copy of Supplement No. 1 - Interior Drainage 6 COPY NUMBER COORDINATOR,UPPER MISSISSIPPI 1504 3RD AVENUE,ROCK ISLAND, * Furnished copy of Supplement No. 105* 106* 107* 108* 109* 110 111 112 113 114 115 116 117 1 - Interior Drainage MR, P, G, MEJfcR, SUPERVISOR,MECHANICAL DESIGN DIVISION,IQWA ILLINOIS GAS & ELECTRIC C0 # , DAVENPORT, IA 52801 MR, N, E, HORST,AMERICAN AIR FILTER CO,,MOLINE, IL 61265 MR, DUDLEY A, 3TFVENS0N,FRANK FOUNDRIES,MOL 1NE, IL 61265 AUGUSTANA RESEARCH FOUNDATI ON,725 35TM STREET, ROCK ISLAND, IL 61201 MCLAUGHLIN BODY COMPANY,2430 3RD AVENUE,MOLINE, IL 01265 HENRY ENGINEERING COMPANY,5300 RIVER DRIVE,MQLlNE IL 61265 CHIPPEWA MOTOR FREIGHT,125 55TH STREET,MOLINE, IL 61265 STROMBECK MANUFACTURING COMPANY,51ST AND 4TH AVENUE,MOLINE, IL 61265 UNIT STEP COMPANY,5230 RIVER DR IVE,MOL INE, IL 61265 PLANT SUPERVISOR,INTERNATIONAL HARVESTER COMPANY, 1100 BLOCK 3RD STREET,MOLINE, IL 61265 CHAIRMAN,UPPER MISSISSIPPI RIVER SURVEY COM,, IZAAK WALTON LEAGUE OF AMERICA, INC,,1912 THIrD STREET,EAST MQLlNE, IL 61244 PRESIDENT,LEAGUE OF WOMEN VOTERS,2031 1 5TH STRfET A,MOLINE, IL 61265 CONSERVATION COM, IL 61201 * 7 U F N F R 4 L MANAGtR,DAVENPORT, R , 1 , 4 NORTH W E 8 T R W Y , UNION STATION,DAvENPOwT , JA 528QI DIRECTOR OF PUBLIC WORKS#BURLINGTON NORTHERN InC # , 5 U7 wEST JACKSON BOULEVARD, CHICAGO# IL 60606 CHIEF ENGINEER,CHICAGO, R # I f i PACIFIC RR CO,, LASALLE STREET STAT I ON,CHICAGO# H 6060% ASSISTANT chief, engineer staff,Chicago, MILWAUKEE, ST, PAUL, AND PACIFIC R,R,,898 UNjON STATION,CHICAGO, IL 60606 FIRST NEIGHBORHOOD, REDEVELOPMENT CORPORATION, 16TH STREET AT 10TH A VfNuE,MOL INt, IL 61365 MOLINE CHAMBER OF COMMERCE,632 1 9TH STREET,MOLlNi, IL 61265 0J**5TATE METROPOLITAN PLANNING C0MM,l5Q4 THIRD AVENUE,ROCK ISLAND, IL 61201 MR, LLOYD GRANT, SUPERINTENDENT,MOL INE WATER DEPARTMENT,619 16 T H STREET,MOL INE, IL 6126% LIBRARIAN,MOLINE PUBLIC LIBRARY,50U 17TH STREET# MOLINE, IL 6136% DOCUMENTS librarian,library, university OF ILLINOIS,URBANA, IL 61801 BE PER WOOD,FOOT OF 18TH STREET,MOL INE,IL 61365 * Furnished copy of Supplement No. 1 - Interior Drainage COPY number 118* 119* 120 * 121 * 122 * 123* 124* 125* 126* 127* 128* 8 DISTRIBUTION INTERNAL COPY NUMBER ► DISTRICT ENGINEER,U,$, ARMY ENGR, 01 ST ,, ROCK ISLAND, CLOCK TOWER BUILDING,ROCK ISLAND,IL 61201 ATTN* NCDRE-.R 129* NCRDE 130* NCRED 131* NCRtDwD 132* NCRED»H 133* NCRED-PB 134* NCRCD 135* NCRED.F 136* NCRED.PB 137* * Furnished copy of Supplement No. 1 - Interior Drainage ► 9 '