Lewiston Dam is an earthfill

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

on the Trinity River that forms

Lewiston Lake Lewiston Lake is a reservoir impounded by Lewiston Dam on the Trinity River, in Trinity County, California. Geography Lewiston Lake is near the towns of Weaverville and Lewiston in Trinity County, California. It is used for transbasin diver ...

near

Weaverville, California Weaverville is a census-designated place and the county seat of Trinity County, California in the United States. Its population is 3,667 as of the 2020 census, up from 3,600 from the 2010 census. History Founded in 1850, Weaverville is a histori ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

.BoR site
accessed 2008-01-10 The high earthfill dam is downstream of

Trinity Dam Trinity Dam is an earthfill dam on the Trinity River located about northeast of Weaverville, California in the United States. The dam was completed in the early 1960s as part of the federal Central Valley Project to provide irrigation water to ...

and was built by the U.S. Bureau of Reclamation. Construction was completed in 1963.NPDP site
accessed 2008-01-10 Lewiston Lake and Dam are part of the

Central Valley Project The Central Valley Project (CVP) is a federal power and water management project in the U.S. state of California under the supervision of the United States Bureau of Reclamation (USBR). It was devised in 1933 in order to provide irrigation an ...

, which harnesses the waters from the

Sacramento River The Sacramento River ( es, Río Sacramento) is the principal river of Northern California in the United States and is the largest river in California. Rising in the Klamath Mountains, the river flows south for before reaching the Sacramento–S ...

and

San Joaquin River The San Joaquin River (; es, Río San Joaquín) is the longest river of Central California. The long river starts in the high Sierra Nevada, and flows through the rich agricultural region of the northern San Joaquin Valley before reaching Suis ...

watersheds to

irrigate Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...

the Central Valley, and provide hydroelectricity.

References

External links

BOR: Central Valley Operations Office
{{Central Valley Project infrastructure Dams on the Trinity River (California) Earth-filled dams Buildings and structures in Trinity County, California Central Valley Project Weaverville, California Dams completed in 1963 Dams in California United States Bureau of Reclamation dams

See also

References

External links