Lake Conditions

Trinity Lake

Trinity Lake


Trinity Lake, an artificial lake on the Trinity River formed by the Trinity Dam, is one of the largest reservoirs in California.  The dam was built by the U.S. Bureau of Reclamation in 1960 to capture and store water for the Central Valley Project, which provides the Central Valley with water for irrigation and produces hydroelectric power. Even though the dam blocks fish passage to the river, Trinity Lake is still home to a self-sustaining population of land-locked salmon.


Click here for current conditions at Trinity Lake (inflow, outflow, reservoir storage, and lake level).

Central Valley Operations (CVO) now provides a weekly report for the Trinity Journal on their website.


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Graphs of values over time are zoomable! Click on a point on the graph and drag right to select the zoom area.



Current Restoration Flow Release Schedule

Flow Volume Summary

Flow Release Notifications

Typical Releases

River Conditions

Flow FAQ