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Trinity Powerplant

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Related Projects & Facilities
Trinity Dam
Shasta/Trinity River Division Project
Related Documents
Trinity Powerplant Performance (pdf)
RegionFacilities in Mid-Pacific | Mid-Pacific Home Page
RiverTrinity River
PurposeTrinity Powerplant is a peaking plant. The power generated is dedicated first to meeting the requirements of the project facilities. The remaining energy is marketed to various preference customers in northern California.
FactsTrinity Dam is a zoned earthfill structure 538 feet high and 40 feet wide at the crest. The crest is 2,600 feet long.
HistoryThese facilities were built and are operated by the Bureau of Reclamation. Transmission lines were constructed and operated by the Bureau of Reclamation until October 1, 1977, when they were transferred to the Western Area Power Administration, Department of Energy
Present ActivitiesNormal operations. Primary reservoir releases are made through the powerplant.
Special IssuesTrinity County has first preference to the power benefit to the Central Valley Project from Trinity Powerplant.
NERC RegionWestern Electricity Coordinating Council, California-So. Nevada Power Area
PMA Service AreaWestern Area Power Administration, Sierra Nevada Region
Plant TypeConventional
Powerhouse TypeAbove Grounc
Turbine TypeFrancis
Original Nameplate Capacity100,000 kW
Installed Capacity140,000 kW
Year of Initial Operation1964
Age43 years
Net Generation358,974,000 kWh
(Fiscal Year)2007
Rated Head426 ft
Plant Factor29.4 percent
(Fiscal Year)2007
Production ModePeaking
Remotely OperatedYes
Project AuthorizationFunds for construction of the initial features of the Central Valley Project were provided by the Emergency Relief Appropriation Act of 1935 (49 Stat. 115). The Secretary of the Interior authorized the project and the President approved it on December 2, 1935.
Project AuthorizationThe Shasta and Trinity River Division was authorized by Public Law 386, 84th Congress, 1st Session, approved August 12, 1955.
Project PurposeThe Central Valley Project, one of the Nation`s major water conservation developments, extends from the Cascade Range on the north to the semiarid but fertile plains along the Kern River on the south. Initial features of the project were built primarily to protect the Central Valley from crippling water shortages and menacing floods. New project units were built to provide water and power to match the continued growth of the State.
Project PurposeAlthough developed primarily for irrigation, this multiple-purpose project also provides flood control, improves Sacramento River navigation, supplies domestic and industrial water, generates electric power, conserves fish and wildlife, creates opportunities for recreation, and enhances water quality.
Project PurposeThe Trinity River Division consists of Trinity Dam and Clair Engle Lake, Trinity Powerplant, Lewiston Dam and Lake, Lewiston Powerplant, Clear Creek Tunnel, Judge Francis Carr Powerhouse, Whiskeytown Dam and Lake, Spring Creek Tunnel and Powerplant, Spring Creek Debris Dam and Reservoir, and related pumping and distribution facilities.
First nameBrian
Last namePerson
TitleArea Office Manager
Phone (Fax)530 275-2441
Phone (Individual)530 275-1554

Last updated: Apr 04, 2011