Folsom Dam Raise Modifications Project

27 Documents in Project


SCH Number
Lead Agency
Central Valley Flood Protection Board
Document Title
Folsom Dam Raise Modifications Project
Document Type
SIR - Supplemental EIR
Present Land Use
Recreation/flood control use
Document Description
The United States Army Corps of Engineers and its non-Federal partners, the Central Valley Flood Protection Board and the Sacramento Area Flood Control Agency, will provide enhanced flood risk protection to the Sacramento Metropolitan Area by constructing the Folsom Dam Raise Flood Risk Management Project. The project would consist of various activities including construction of a new Dike 3, construction of concrete floodwall raises on Dike 1, Dikes 4-7, and the Mormon Island Auxiliary Dam (MIAD), on-site borrow and disposal at MIAD West, rock crushing operations at MIAD East, a project mitigation plan, and smaller scale actions, including but not limited to the replacement of a culvert under an access road north of Dike 1, and modification of the Area of Potential Effects (APE) and staging areas for the dikes and dams under construction.

Contact Information

Kalia Schuster
Agency Name
Central Valley Flood Protection Board
Contact Types
Lead/Public Agency


El Dorado, Placer, Sacramento
Countywide, Northern California
State Highways
US Route 50, Interstate 80
Folsom Lake, American River
Other Location Info
Folsom Lake

Notice of Completion

State Review Period Start
State Review Period End
Development Types
Other (Flood risk Reduction Improvements)
Local Actions
Flood Improvements
Project Issues
Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Greenhouse Gas Emissions, Hydrology/Water Quality, Noise, Recreation, Transportation, Tribal Cultural Resources, Vegetation
Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Department of Toxic Substances Control, Office of Historic Preservation, Sierra Nevada Conservancy, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights


Notice of Completion [NOC] Transmittal form

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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