Flint River Flood Mitigation Alternatives Saginaw County, Michigan
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Draft Environmental Assessment Flint River Flood Mitigation Alternatives Saginaw County, Michigan Flint River Erosion Control Board FEMA-DR-1346-MI, HMGP Project No. A1346.53 April 2006 U.S. Department of Homeland Security FEMA Region V 536 South Clark Street, Sixth Floor Chicago, IL 60605 This document was prepared by URS Group, Inc. 200 Orchard Ridge Drive, Suite 101 Gaithersburg, MD 20878 Contract No. EMW-2000-CO-0246, Task Order No. 138. Job No. 15292488.00100 TABLE OF CONTENTS List of Acronyms ........................................................................................................................................ iii Section 1 ONE Introduction........................................................................................................................ 1 1.1 Project Authority..........................................................................................1 1.2 Project Location and Setting........................................................................1 1.3 Purpose and Need ........................................................................................2 Section 2 TWO Alternative Analysis .......................................................................................................... 3 2.1 Alternative 1 – No Action Alternative.........................................................3 2.2 Alternative 2 – Dike Reconstruction and Reservoir Construction (Proposed Action) ........................................................................................3 2.2.1 Project Segment 1 ............................................................................4 2.2.2 Project Segment 2 ............................................................................4 2.2.3 Project Segment 3 ............................................................................4 2.2.4 Project Segment 4 ............................................................................5 2.2.5 Project Segment 5 ............................................................................5 2.2.6 Project Segment 6 ............................................................................5 2.2.7 Project Segment 7 ............................................................................6 2.3 Alternative 3 – Elevation, Relocation, or Acquisition of Flood- Prone Structures...........................................................................................6 2.4 Alternatives Considered and Dismissed ......................................................6 Section 3 THREE Affected Environment and Environmental Consequences............................................ 8 3.1 Physical Environment ..................................................................................8 3.1.1 Geology, Seismicity and Soils .........................................................8 3.1.2 Water Resources and Water Quality..............................................10 3.1.3 Floodplain Management (Executive Order 11988) .......................12 3.1.4 Air Quality.....................................................................................14 3.2 Biological Environment.............................................................................15 3.2.1 Terrestrial and Aquatic Environment.............................................15 3.2.2 Wetlands (Executive Order 11990) ...............................................17 3.2.3 Threatened and Endangered Species .............................................19 3.3 Hazardous Materials..................................................................................20 3.4 Socioeconomics .........................................................................................21 3.4.1 Zoning and Land Use.....................................................................21 3.4.2 Visual Resources............................................................................22 3.4.3 Noise ..............................................................................................23 3.4.4 Public Services and Utilities ..........................................................25 3.4.5 Traffic and Circulation...................................................................26 3.4.6 Environmental Justice (Executive Order 12898)...........................26 3.4.7 Safety and Security ........................................................................28 3.5 Cultural Resources.....................................................................................28 3.5.1 Historic Resources.........................................................................29 3.5.2 Archaeological Resources..............................................................30 P:\GAITHERSBURG\89-FEMA4138.00\REPORTS\DRAFT\100.53\PUBLIC DRAFT EA\PUBLIC DRAFT.FLINT RIVER EA_04.12.06.DOC\24-APR-06\\ i TABLE OF CONTENTS 3.5.3 Indian Religious Sites Investigation ..............................................32 3.6 Impact Summary Matrix............................................................................32 Section 4 FOUR Cumulative Impacts......................................................................................................... 37 Section 5 FIVE Public Participation......................................................................................................... 38 Section 6 SIX Mitigation Measures and Permits................................................................................... 39 Section 7 SEVEN Consultations and References....................................................................................... 43 Section 8 EIGHT List of Preparers..............................................................................................................47 Appendices Appendix A Figures Appendix B Agency Correspondence Appendix C “Flooded with Sewage,” from The Flint Journal, February 20, 2001 Appendix D EO 11988 Floodplain Management & EO 11990 Wetland Protection: Eight-Step Planning Process Appendix E Public Involvement List of Tables Table 1 Heavy Equipment Noise Levels at 50 Feet............................................................24 Table 2 Historic Resources Located within Spaulding and Taymouth Townships ............29 Table 3 Summary of Archeological Phase I, II, and III Investigations ..............................30 Table 4 Impact Summary Matrix........................................................................................33 Table 5 Mitigation Measures ..............................................................................................39 Table 6 Permit Requirements..............................................................................................42 P:\GAITHERSBURG\89-FEMA4138.00\REPORTS\DRAFT\100.53\PUBLIC DRAFT EA\PUBLIC DRAFT.FLINT RIVER EA_04.12.06.DOC\24-APR-06\\ ii List of Acronyms APE Area of Potential Effect BMPs Best Management Practices CEQ Council of Environmental Quality CFR Code of Federal Regulations CMP corrugated metal pipe CO Carbon Monoxide CSO combined sewer overflow CWA Clean Water Act CY cubic yards dB decibels dBA A-weighted sound levels EA Environmental Assessment EDR Environmental Data Resources EIS Environmental Impact Statement EO Executive Order EPA Environmental Protection Agency ESA Endangered Species Act FEMA Federal Emergency Management Agency FIRM Flood Insurance Rate Map FONSI Finding of No Significant Impact FPPA Farmland Protection Policy Act FRFCP Flint River Flood Control Project HMGP Hazard Mitigation Grant Program HUC hydrologic unit code LF linear feet Lp sound pressure level MDEQ Michigan Department of Environmental Quality MDNR Michigan Department of Natural Resources NAAQS National Ambient Air Quality Standards NCA Noise Control Act NEPA National Environmental Policy Act NFIP National Flood Insurance Program NGVD National Geodetic Vertical Datum NHPA National Historic Preservation Act NO2 Nitrogen Dioxide NRCS Natural Resources Conservation Service NREPA Natural Resources and Environmental Protection Act NRHP National Register of Historic Places NWI National Wetlands Inventory O3 Ozone OSHA Occupational Safety and Health Administration P:\GAITHERSBURG\89-FEMA4138.00\REPORTS\DRAFT\100.53\PUBLIC DRAFT EA\PUBLIC DRAFT.FLINT RIVER EA_04.12.06.DOC\24-APR-06\\ iii List of Acronyms Pb Lead P.L. Public Law PM-10 Particulate Matter with a diameter less than or equal to 10 microns RCRA Resource Conservation and Recovery Act ROW Right-of-Way SHPO State Historic Preservation Officer SO2 Sulfur Dioxide TMDL Total Maximum Daily Load USACE United States Army Corps of Engineers USFWS United States Fish and Wildlife Service USGS United States Geological Survey V:H Vertical:Horizontal VOCs Volatile Organic Compounds WQS Water Quality Standards P:\GAITHERSBURG\89-FEMA4138.00\REPORTS\DRAFT\100.53\PUBLIC DRAFT EA\PUBLIC DRAFT.FLINT RIVER EA_04.12.06.DOC\24-APR-06\\ iv SECTION ONE Introduction 1. Section 1 ONE Introduction 1.1 PROJECT AUTHORITY Severe storms and flooding occurred on September 10 and 11, 2000 in the State of Michigan, leading the Federal Emergency Management Agency (FEMA) to issue a Federal disaster declaration, DR-1346-MI, on October 17, 2000. Under this declaration, Oakland and Wayne Counties became eligible for Individual Assistance, and all counties within the State became eligible for funding through the Hazard Mitigation Grant Program (HMGP). The Flint River Erosion Control Board (Applicant) in Saginaw County, Michigan, applied for HMGP Section 404 funding under the Robert T. Stafford Disaster Relief and Emergency Assistance Act. Grant funds are provided by