B.F. Sisk Dam is a 380-foot-high zoned compacted earthfill embankment located on the west side of California's Central Valley 12 miles west of Los Banos, California. The dam is more than 3.5 miles long and impounds San Luis Reservoir which has a total capacity of more than 2 million acre-feet.
The dam was built between 1963 and 1967 to provide supplemental irrigation water storage for the federal Central Valley Project (CVP) and municipal and industrial water for the California State Water Project (SWP). Water is lifted into the reservoir for storage by the Gianelli Pumping – Generating Plant from the California Aqueduct and from the Delta-Mendota Canal via O’Neill Forebay.
B.F. Sisk Dam, also known as San Luis Dam, is owned by the Bureau of Reclamation and operated by the California Department of Water Resources (DWR). Reservoir storage space is allotted 55% state and 45% federal.
General
Project
Central Valley
Longitude
-121.0750
Watercourse
San Luis Creek
Reservoir
San Luis
Original Construction
1963-1967
National ID Number
CA10183
Latitude
37.0583
Dimensions
Crest Elevation
554.0 ft
Structural Height
382.0 ft
Hydraulic Height (Normal Operating Depth at Dam)
303.0 ft
Crest Length
18600.0 ft
Top of Active Conservation Pool (Elevation)
544.0 ft
Top of Inactive Conservation Pool (Elevation)
326.0 ft
Spillway Crest Elevation
544.0 ft
Top of Dead Storage Pool (Elevation)
273.0 ft
Streambed at Dam Axis
241.0 ft
Hydraulics & Hydrology
Normal Water Surface Elevation
544.0 ft
Spillway Capacity at Elevation
1030 cfs at 545.8 ft
Auxiliary Spillway
No
Outlet Works Capacity at Elevation
13120 cfs at 544.0 ft
Drainage Area
82.6 sq mi
Hydrometeorological Report (HMR)
HMR 36
Contact
Owner
Title: Area Office Manager Organization: South-Central California Area Office Address: 1243 "N" Street City: Fresno, CA 93721-1813 Phone: 559-262-0300
Operator
Organization: California Department of Water Resources Address: San Luis Field Division City: Gustine, CA 93522 Phone: 209-827-5100
More Information about the U.S. Bureau of Reclamation
