Frenchman Lake, located in Plumas, California, is a state-regulated dam with a primary purpose of water supply. Built in 1961, this earth dam stands at a height of 139 feet and has a storage capacity of 55,477 acre-feet. The reservoir covers a surface area of 1,580 acres and is fed by Lit Last Chance Creek, serving irrigation, recreation, and water supply needs in the region.

Managed by the Department of Water Resources and Safety of Dams, Frenchman Lake has a high hazard potential but is currently deemed to be in satisfactory condition. Regular inspections are conducted, with the last assessment taking place in September 2017. The dam is equipped with emergency action plans, although the details of their preparation and compliance with guidelines are not specified in the available data. In the event of an emergency, the appropriate regulatory agencies and local authorities are responsible for implementing risk management measures and ensuring public safety.

Overall, Frenchman Lake is a crucial water resource infrastructure in California, providing essential services to the surrounding communities. With its strategic location and significant storage capacity, the dam plays a vital role in water management and supply for agriculture and residential use. As climate change continues to impact water resources, ongoing monitoring and maintenance of dams like Frenchman are essential to safeguard against potential risks and ensure the sustainable utilization of this valuable resource.