Lake Del Valle is a storage
reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Reservoirs can be created in a number of ways, including contro ...
located southeast of
Livermore, in
Alameda County, California
Alameda County ( ) is a county located in the U.S. state of California. As of the 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and 21st most populous nationally. The county seat is Oakland. Alam ...
. It is within
Del Valle Regional Park
Del Valle Regional Park is a part of the East Bay Regional Park District (EBRPD) in an unincorporated region of Alameda County, California, south of the city of Livermore. .
Lake description
It is on
Arroyo Valle
Arroyo Valle or Arroyo Del Valle is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 15, 2011 westward-flowing stream that begins in northeastern Santa Clara County, California ...
(Spanish for "creek of the valley") in the
Diablo Range
The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges in northern California, United States. It stretches from the eastern San Francisco Bay area at its northern end to the Salinas Valley are ...
. The lake is formed by Del Valle Dam, completed in 1968.
The lake and dam are part of the
California State Water Project
The California State Water Project, commonly known as the SWP, is a state water management project in the U.S. state of California under the supervision of the California Department of Water Resources. The SWP is one of the largest public wate ...
, as part of the
South Bay Aqueduct. The lake serves in part as off-stream storage for the South Bay Aqueduct. The capacity of the lake is , however, the lake has a flood storage of . Thus normally stores . The lake is a popular destination for hikers, bikers, and boaters.
The
Hetch Hetchy Aqueduct
Hetch Hetchy is a valley, a reservoir, and a water system in California in the United States. The glacial Hetch Hetchy Valley lies in the northwestern part of Yosemite National Park and is drained by the Tuolumne River. For thousands of years bef ...
passes below the lake, but does not connect to it.
The
California Office of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency ( CalEPA) with responsibility for evaluatin ...
issued
fishing advisoryregarding the mercury levels of fish caught from the body of water.
Dam description
The dam is high and long. Its crest elevation is . The dam contains of earth fill.
See also
*
List of dams and reservoirs in California
*
List of lakes in California
There are more than 3,000 named lakes, reservoirs, and dry lakes in the U.S. state of California.
Largest lakes
In terms of area covered, the largest lake in California is the Salton Sea, a lake formed in 1905 which is now saline. It occupie ...
*
List of lakes in the San Francisco Bay Area
This list of lakes in the San Francisco Bay Area groups lakes, ponds, and reservoirs by county. Numbers in parentheses are Geographic Names Information System feature ids.
Alameda County
* Almond Reservoir ()
* Berryman Reservoir ()
* Bethany ...
References
External links
Lake Del Valle recreation information California Department of Water Resources
Lake Del Valle dataat California Data Exchange Center
*
{{Authority control
Del Valle
California State Water Project
Dams in California
California Department of Water Resources dams
Diablo Range
East Bay Regional Park District
Del Valle
Infrastructure completed in 1968