Thermalito Forebay, located in Oroville, California, is a state-regulated dam with a primary purpose of hydroelectric power generation. Completed in 1967, this earth dam stands at a height of 91 feet and has a hydraulic height of 65 feet. With a storage capacity of 11,768 acre-feet, the reservoir covers a surface area of 630 acres and is fed by the off-stream waters of the Feather River.

Managed by the Department of Water Resources (DWR), Thermalito Forebay serves as a vital component of California's water resource infrastructure, providing not only hydroelectric power but also recreational opportunities. The dam's spillway, with a width of 30 feet, is uncontrolled and can discharge up to 5,000 cubic feet per second in times of high water flow. Despite its high hazard potential, the dam is regularly inspected by both state and federal agencies to ensure its safety and integrity.

Thermalito Forebay's risk assessment is categorized as moderate, with a DSAC assigned date yet to be determined. While the condition assessment is not currently available, emergency action plans have been prepared and updated to meet guidelines. As a key feature in the San Francisco District of the US Army Corps of Engineers, this dam plays a crucial role in water management and climate resilience efforts in the region, highlighting the intersection of water resources and climate adaptation.