San Luis Dam

San Luis Dam
San Luis Dam and William R. Gianelli power station
Location	Merced County, California, USA
Coordinates	37°03′33″N 121°04′29″W / 37.05917°N 121.07472°W / 37.05917; -121.07472Coordinates: 37°03′33″N 121°04′29″W / 37.05917°N 121.07472°W / 37.05917; -121.07472
Opening date	1967
Dam and spillways
Type of dam	Embankment dam
Height	93 m (305 ft)
Reservoir
Creates	Upper: San Luis Reservoir Lower: O'Neill Forebay
Total capacity	2,041,000 acre·ft (2,518,000 dam³)
Power station
Type	Pumped-storage
Turbines	8
Installed capacity	424 MW

San Luis Dam is a dam that creates San Luis Reservoir, which serves as an off-stream reservoir for the California State Water Project and the Central Valley Project. It is also known as the B.F. Sisk Dam, after Bernie Sisk. The earth-fill gravity embankment dam is 305 feet (93 m) tall and was completed in 1967. It is located between Los Banos, California and Gilroy, California, United States along Pacheco Pass. San Luis Reservoir is the largest off-stream reservoir in the United States, with a capacity of 2,041,000 acre feet (2,518,000 dam³). San Luis Creek is a small stream that flows through the area and it is sometimes listed as the dam's watershed, even though it is an off-stream reservoir. The dam is owned by the U.S. Bureau of Reclamation, but is operated by the California Department of Water Resources to store water for its State Water Project.

San Luis Reservoir and O'Neill Forebay serve as the upper and lower reservoirs for the William R. Gianelli pumped storage hydroelectric plant, which began operating in 1968. The plant's eight Francis turbines produce a combined 424 MW. The sale of peak electricity lowers the overall cost of operating the State Water Project, particularly the California Aqueduct. A short 230 kV power line heads eastward to deliver this electricity to Northern California's electricity backbone, Path 15.

President John F. Kennedy spoke at the groundbreaking for the San Luis Reservoir on August 18, 1962.^[1]^[2]^[3]

The short 230 kV line between the Los Banos substation and the William R. Gianelli hydroelectric plant.

Panorama of the B.F. Sisk Dam from the north.

References

Central Valley Project Infrastructure

Dams	Auburn Dam B.F. Sisk Dam Folsom Dam Friant Dam Lewiston Dam New Melones Dam Nimbus Dam O'Neill Dam Red Bluff Diversion Dam San Justo Dam Shasta Dam Sly Park Dam Spring Creek Dam Sugar Pine Dam Trinity Dam Whiskeytown Dam

Reservoirs	Folsom Lake Millerton Lake Lake Natoma New Melones Lake O'Neill Forebay San Luis Reservoir Sugar Pine Reservoir Shasta Lake Trinity Lake Whiskeytown Lake

Aqueducts and canals	Clear Creek Tunnel Contra Costa Canal Corning Canal Delta Cross Channel Delta–Mendota Canal Folsom South Canal Friant-Kern Canal Madera Canal San Luis Canal Tehama-Colusa Canal

Rivers	American River Clear Creek Chowchilla River Kern River Sacramento River San Joaquin River San Luis Creek Stanislaus River

California State Water Project

Dams	Antelope B.F. Sisk Bethany Castaic Cedar Springs Del Valle Elderberry Forebay Fish Barrier Frenchman Grizzly Valley Little Panoche Los Banos Dam O'Neill Oroville Perris Pyramid Quail Lake Thermalito Afterbay Thermalito Diversion Thermalito Forebay

Reservoirs	Antelope Lake Bethany Reservoir Castaic Lake Clifton Court Forebay Elderberry Forebay Frenchman Lake Lake Davis Lake Del Valle Lake Oroville Lake Perris Little Panoche Reservoir Los Banos Reservoir O'Neill Forebay Pyramid Lake Quail Lake San Luis Reservoir Silverwood Lake Tehachapi Afterbay Thermalito Afterbay Thermalito Forebay

Rivers and bodies of water	Feather River Piru Creek Sacramento River Sacramento–San Joaquin River Delta San Luis Creek

Aqueducts and canals	California Aqueduct Coastal Branch East Branch West Branch North Bay Aqueduct South Bay Aqueduct

Other facilities	Banks Pumping Plant Castaic Power Plant Devil Canyon Power Plant Dos Amigos Pumping Plant Edmonston Pumping Plant Feather River Fish Hatchery Kern River Intertie O'Neill Pumping-Generating Plant Oroville-Thermalito Complex South Bay Pumping Plant

Related	CALFED Bay-Delta Program California Department of Water Resources Peripheral Canal Bay Delta Conservation Plan

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