Folsom in Sacramento County, California — The American West (Pacific Coastal)
Folsom Dam Improvements
Promoting Public Safety for the Sacramento Region
Folsom Dam and Reservoir are a component of the Central Valley Project, owned and operated by the Bureau of Reclamation, Mid-Pacific Region, Central California Area Office
Construction of Folsom Dam by the Corps began in October 1948 and was completed in May 1956. Folsom Dam was then transferred to Reclamation for operation.
Folsom Dam is a concrete gravity dam 340 feet high and 1,400 feet long flanked by left and right earthfill wing dams. “The Folsom Facility” also includes Mormon Island Auxiliary Dam and eight earthfill dikes. The storage capacity for the reservoir is 977,000 acre-feet at an elevation of 466 feet.
Water was first stored in February 1955. The Folsom Facility provides for water for municipal and industrial use and agriculture; generates 10 percent of local hydropower needs; maintains flows and water temperatures to support fish and wildlife; provides flows for Sacramento-San Joaquin Bay-Delta water quality; and offers recreation for 2 million visitors annually.
Under the Safety of Dams Program, Reclamation identified the need for expedited action to reduce hydrologic (flood), seismic (earthquake), and static (seepage) risks. These events have low probability of occurrence in a given year; however, due to large population downstream and adjacent to Folsom Dam, modifying the facility is prudent and required to improve public safety.
Flood Damage Reduction
The Corps, in partnership with the Central Valley Flood Protection Board (formerly the State Reclamation Board), and the Sacramento Area Flood Control Agency (SAFCA), identified the need to reduce the risk of flooding in the Sacramento area, one of the most at-risk communities in the Nation.
The JFP was developed to coordinate efforts of both Reclamation and the Corps at the Folsom Facility. Through their cooperation, Reclamation and the Corps seek to integrate related dam safety and flood-risk reduction improvements. Additionally, both agencies are planning other improvements separate from the JFP.
Erected by U.S. Department of the Interior-Bureau of Reclamation, US Army Corps of Engineers, Central Valley Flood Protection Board-State of California and the Sacramento Area Flood Control Agency.
Topics. This historical marker is listed in these topic lists: Bridges & Viaducts • Charity & Public Work • Industry & Commerce • Waterways & Vessels. A significant historical month for this entry is February 1955.
Location. 38° 41.734′ N, 121° 7.76′ W. Marker is in Folsom, California, in Sacramento County. Marker can be reached from East Natoma Street. Marker is located at the Folsom Point boat launch area, Folsom Lake State Recreation Area, off of East Natoma Steet. This is a fee-use area. Touch for map. Marker is in this post office area: Folsom CA 95630, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Mormon Island (approx. ¼ mile away); Johnny Cash TrailPrairie City Cemetery (approx. 1.1 miles away); Mormon Island Relocation Cemetery (approx. 1.1 miles away); Railroad Gate (approx. 1.7 miles away); Prison Doodlebug (approx. 1.7 miles away); Fire Extinguisher (approx. 1.7 miles away); Tree Stump Hitching Post (approx. 1.7 miles away). Touch for a list and map of all markers in Folsom.
Also see . . . California State Parks. Folsom Dam Facts & Questions (Submitted on April 4, 2009, by Syd Whittle of Mesa, Arizona.)
Additional keywords. 21st Century
Credits. This page was last revised on August 18, 2020. It was originally submitted on April 4, 2009, by Syd Whittle of Mesa, Arizona. This page has been viewed 3,702 times since then and 63 times this year. Photos: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. submitted on April 4, 2009, by Syd Whittle of Mesa, Arizona. 11. submitted on April 6, 2009, by Syd Whittle of Mesa, Arizona.