Letter from Dave Kepler
This report is the final update to the May 2021 Feasibility Study and Restoration Plan, with the experiences and learnings of the past four years of implementation. Moving forward, reporting will focus on dam and lake restoration, lake refill, and environmental and recreational progress. This is a large and comprehensive public works project, and this report frames FLTF’s accomplishments over the past five years that led to permitting, financing and implementation of the 2021 plan. A final report on implementation will be published when construction concludes on all four dams and the four lakes are filled.
Best Regards
Dave Kepler
President and Lake Property Owner
Four Lakes Task Force
Best Regards
Dave Kepler
President and Lake Property Owner
Four Lakes Task Force
Acronyms
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ALICE: Asset Limited, Income Constrained and Employed
Ayres: Ayres Associates BMP: best management practice Boyce: Boyce Hydro Power CFS: cubic feet per second CLOMAR: Conditional Letter of Map Revision CMU: Central Michigan University DSP: dam safety program DSSMP: dam safety surveillance and monitoring program EAP: emergency action plan EGLE: Michigan Department of Environment, Great Lakes, and Energy EPA: Environmental Protection Agency ER: environmental report ESA: federal Endangered Species Act EWP: Emergency Watershed Protection (program) FEMA: Federal Emergency Management Agency FERC: Federal Energy Regulatory Commission FLSAD: Four Lakes Special Assessment District FLTF: Four Lakes Task Force GEI: GEI Consultants of Michigan HCA: Heron Cove Association HCP: Habitat Conservation Plan IDF: inflow design flood ITP: Incidental Take Permit KPI: key performance indicator LEDPA: least environmentally damaging practicable alternative LID: low-impact development LLO: low-level outlet MDNR: Michigan Department of Natural Resources MDOT: Michigan Department of Transportation MDSP: Model Dam Safety Program NEPA: National Environmental Policy Act NFIP: National Flood Insurance Program |
NHPA: National Historic Preservation Act
NOC: Notice of Coverage NPDES: National Pollutant Discharge Elimination System NRCS: Natural Resources Conservation Services NREPA: Natural Resources and Environmental Protection ActO&M: operations and maintenance O&M: operations and maintenance OHWM: ordinary high-water mark OPCC: opinion of probable construction costs Part 301: Inland Lakes and Streams Part 303: Wetlands Part 307: State of Michigan inland lakes of the Natural Resource and Environmental Protection Act 451 of 1994 PER: preliminary engineering report PMF: probable maximum flood PMP: probable maximum precipitation PSC: Public Sector Consultants PSP: public safety plan QMP: Quality Management Plan RCC: roller compacted concrete RD: rural development SAD: Four Lakes Special Assessment District SCADA: Supervisory Control and Data Acquisition SESC: soil erosion and sedimentation control SEV: state equalized value SFHA: special flood hazard area T&E: threatened and endangered (species) TCSMP: Temporary Construction Surveillance and Monitoring Plan USACE: United States Army Corps of Engineers USDA: United States Department of Agriculture USFWS: United States Fish and Wildlife Service USGS: United States Geographical Survey WLA: Wixom Lake Association WLIB: Wixom Lake Improvement Board |
Appendix
Figures
Figure 1: Tobacco Dam. Photo taken May 31, 1924. 11
Figure 2: Four Lakes Watershed. 13
Figure 3: Sanford Dam Outflow Hydrographs. 15
Figure 4: Summary of Existing and Required Spillway Discharge Capacity. 16
Figure 5: J-hooks in downstream Edenville Dam improve riverbank instability and erosion. 30
Figure 6: Summary of Wetlands Impacts. 31
Figure 7: Funding Sources. 37
Figure 8: Capital Improvement Computation of Costs. 44
Figure 9: Average Annual Assessment Payment for O&M and Capital Assessments. 45
Figure 10: Annual Capital Assessment Payment Per Parcel. 45
Figure 11: Estimated Dam Substantial Completion Dates. 48
Figure 2: Four Lakes Watershed. 13
Figure 3: Sanford Dam Outflow Hydrographs. 15
Figure 4: Summary of Existing and Required Spillway Discharge Capacity. 16
Figure 5: J-hooks in downstream Edenville Dam improve riverbank instability and erosion. 30
Figure 6: Summary of Wetlands Impacts. 31
Figure 7: Funding Sources. 37
Figure 8: Capital Improvement Computation of Costs. 44
Figure 9: Average Annual Assessment Payment for O&M and Capital Assessments. 45
Figure 10: Annual Capital Assessment Payment Per Parcel. 45
Figure 11: Estimated Dam Substantial Completion Dates. 48
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Outline & Appendix
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CHapter 1: EXecutive Summary
1b. 2022 Four Lakes Survey Report by Public Sector Consultants 1c. Decommissioning Report for Secord, Smallwood, Edenville and Sanford Dams by The Essex Partnership 1c. Desktop Study - Restoration of Hydroelectric Generation at Secord, Smallwood, Edenville and Sanford Dams by The Essex Partnership Chapter 3: FUTURE USE AND FUNCTION OF THE LAKES
3a. Sanford Lake - Economic Analysis Report by Public Sector Consultants 3a. Four Lakes Task Force Demographic Assessment – March 2024 by Public Sector Consultants 3a. Fishing Economic Activity by Streamside Ecological Services Covenant Deed Flowage License Recorded Order Vesting Title - Gladwin County Recorded Order Vesting Title - Midland County Chapter 5: Restoration Design and Construction
No appendices Chapter 7: Operations Excellence
No appendices Chapter 9: Special Assessment District, Property Benefits and Affordability Analysis
No appendices Chapter 11: CONCLUSION
No appendices |
Chapter 2: Introduction and BAckground
Chapter 4: FLOOD MANAGEMENT
4a. 1980 Study on Flood Control of the Tittabawassee River by the U.S. Army Corps of Engineers 4a. 1998 Amended Order for the Sanford Dam Project by the Federal Energy Regulatory Commission 4b. Independent Forensic Investigation of Dam Failures - February 20221 – by the Michigan Dam Safety Task Force 4d. Summary of Flood Routing Downstream of Sanford Dam Memo - April 2022 by GEI Public Hearing on Sanford Dam – July 2023 by the Michigan Department of Environment, Great Lakes, and Energy Chapter 6: Environmental Mitigation Plans
Chapter 8: Funding and Financing
Chapter 10: Risks and Conclusion
No appendices |
