Thermalito Diversion, located in Oroville, California, is a state-regulated structure on the Feather River designed by the Department of Water Resources (DWR) in 1967. This concrete dam stands at a height of 143 feet and serves a primary purpose of water supply, with additional functions including hydroelectric power generation. The dam has a storage capacity of 13,328 acre-feet and a spillway width of 560 feet.

With a hazard potential rated as high and a risk assessment indicating a very high level of risk, the Thermalito Diversion is closely monitored and inspected by both state and federal agencies. The Federal Energy Regulatory Commission oversees the regulatory and inspection aspects of the dam, ensuring its safe operation. The dam's emergency action plan is up to date, meeting guidelines to address potential risks and emergencies effectively.

Water resource and climate enthusiasts will appreciate the strategic location and design of the Thermalito Diversion, which plays a crucial role in water supply and hydroelectric power generation in the region. The dam's impressive structural features, such as its multi-arch core and controlled spillway, demonstrate its resilience and capacity to manage the flow of the Feather River. As a key component of California's water infrastructure, the Thermalito Diversion continues to be a vital asset in managing the state's water resources effectively and sustainably.