Trinity, also known as Clair Engle Lake, is a federal-owned reservoir located in Trinity, California. Managed by the Bureau of Reclamation, this Earth-type dam was completed in 1962 and serves multiple purposes including hydroelectric power generation, irrigation, and recreation. With a dam height of 458 feet and a storage capacity of 2,760,870 acre-feet, Trinity plays a crucial role in water resource management in the region.

Situated on the Trinity River, Trinity reservoir covers a surface area of 17,722 acres and serves a drainage area of 692 square miles. Despite its uncontrolled spillway type and high hazard potential, the dam is regularly inspected by the Bureau of Reclamation to ensure its structural integrity and safety. While its risk assessment indicates a moderate level of risk, there are currently no specific risk management measures in place. Overall, Trinity stands as a significant water resource infrastructure in California, contributing to both water supply and energy production in the region.