Location
Coralville, Iowa
Description
Coralville Lake is a multi-purpose project providing primary benefits in flood control and low-flow augmentation with secondary benefits in recreation, natural resource management and environmental stewardship. Conservation pool is 4,500 acres; and the flood control pool is 24,800 acres with 475,000 acre-feet of storage. The dam is located on the Iowa River just upstream of Iowa City.
Background
Cumulative nominal damages prevented since projects inception (1958) through FY 2023 is $834,115,000. The project includes 24,597 acres of fee title lands, 11 recreation areas, and 7 campgrounds. FY23 visitation was 1,057,310 visitors, resulting regional economic impact of $31,130,000 in visitor spending and an estimated 310 jobs within 30 miles. Recreation fee collections was up to nearly $700,000. Visitation, camping, recreation fees, etc. all were indicative of pre-COVID averages to a more normal year.
Status
Project is in operation.
Authority
OM - Operations and Maintenance
Flood Control Act of 1938
Additional Information
Summarized Project Costs:
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Estimated Federal Cost
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N/A
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Estimated Non-Federal Cost
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N/A
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Estimated Total Project Cost
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N/A
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Allocations Prior to FY 2024
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N/A
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FY 2024 Allocation 1
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$9,072,000
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FY 2025 President’s Budget
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$5,301,000
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FY 2025 Total Capability
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$21,905,000
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1 FY 2024 Allocation includes $4.05M received in BIL Supplemental Funds.
Major Work Item Current Year
FY 2024: Project funds were used for routine operation and maintenance of the flood control infrastructure to reduce flooding downstream and related water control feature. This year we had minor high-water events that will likely increase our flood damage benefits, but these caused sedimentation and erosion to our three swim beaches. The funds also provided for minimal operation and maintenance of day-use, overnight recreation areas and facilities providing a quality level of service to the project visitors. Funds also allowed for minimal annual environmental stewardship activities to protect the health, sustainability and integrity of the public lands associated with the project. Funds were used to complete other non-routine tasks such as removal of hazardous trees killed by the Emerald Ash Bore, boundary line surveys, minor repair roadways, and modernization of some electric and water infrastructure. The project also completed installation of four shower/restroom buildings funded by FY23 BIL funds.
FY 2024 BIL Funding: The Project received $550K to initiate a contract to purchase and replace one Restroom/Shower Building and $250K for electrical upgrades for Sugar Bottom campground. We also received an additional $3M to go along with the FY24 $4.5M that will be used to initiate and complete construction of Ranger Garage Building & Administrative Office rehab. This funding will allow for the removal and replacement of a Ranger Vehicle / Storage building and repair the water damage to the office from 2022. Demo of office interior, mold and asbestos remediation has been completed. Contracts for the Phase I of the Design and Build is complete. Phase II has been awarded. Work will include design and rebuild the Admin Office interior, and repurpose or removal of the partially insulated storage 6-bay garage building.
Major Work Item Next Fiscal Year
FY 2025: Funds will be used for operation and maintenance of flood control structures and related infrastructure, dam safety programs and activities, and low flow augmentation. The funds support management of the recreation program and providing a quality level of service to the public visiting the recreation areas. They are also being used for environmental stewardship activities to protect the health, sustainability and integrity of the public lands associated with the project; protect cultural/historical resources and to protect critical threatened and endangered species habitats by partnering with Iowa DNR, USFWS and other stakeholders.
Additional funding could be used to complete work on the following non-routine items: Boundary line survey, maintenance & signage to prevent encroachments; and continued activities to modernize our project’s infrastructure. Any additional funding could be used for other large-scale infrastructure modernize campgrounds to include upgrading hundreds of campsites to 50-amp service, pave/repair of ~ 8 miles of roadways, and convert hundreds of gravel campsite pads to smooth hard surface as outlined in the work plan.