Folsom Dam Safety and Flood Damage Reduction - Folsom Dam Raise

SCH Number: 2006022091
Lead Agency: Central Valley Flood Protection Board
Document Title: Folsom Dam Safety and Flood Damage Reduction - Folsom Dam Raise
Document Type: SIR - Supplemental EIR
Received: 6/16/2017

Document Description: As part of the Folsom Dam Raise Project, the Central Valley Flood Protection Board, the Sacramento Area Flood Control Agency, US Army Corps of Engineers, and the US Bureau of Reclamation propose to modify the spillway gates, raise; the Dam, wing dams, and dikes by 3.5 ft. Structural modifications associated with the Folsom Dam Raise project are proposed to provide increased flood damage protection by increasing the flood storage capacity and/or pool release mechanisms at the Folsom Facility. These modifications add flood damage reduction benefits, while still safely allowing passage of the Probable Max Flood, by creating additional surcharge space (temporary water storage space utilized during rare flooding events) within the reservoir.

Contact Information: Vincent Heim
Central Valley Regional Water Board
3464 El Camino Ave, Suite 150
Sacramento, CA 95821
916-574-2310

Review Period Start: 6/16/2017
Review Period End: 7/31/2017
Project Issues: Other Issues Cumulative Effects Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Recreation/Parks Public Services Noise Minerals Geologic/Seismic Flood Plain/Flooding Biological Resources Archaeologic-Historic Air Quality Aesthetic/Visual Other Issues: Climate Change
Reviewing Agencies: Department of Fish and Wildlife, Region 2 California Department of Parks and Recreation California Public Utilities Commission Delta Protection Commission Delta Stewardship Council Department of Conservation Department of Water Resources Native American Heritage Commission Office of Emergency Services, California Office of Historic Preservation Regional Water Quality Control Bd., Region 5 (Sacramento) Resources Agency State Lands Commission