Chester Diversion, located in Chester, California, is a state-regulated water resource structure on the Nfk Feather Rv. Completed in 1975, this Earth-type dam stands at a height of 47 feet and serves the primary purpose of debris control, with additional benefits including flood risk reduction. With a storage capacity of 75 acre-feet, the dam covers a surface area of 15 acres and drains an area of 113 square miles.

Managed by the California Department of Water Resources (DWR) and Safety of Dams, Chester Diversion has a high hazard potential but is currently assessed as satisfactory in condition. The dam undergoes regular inspections, with the last assessment conducted in September 2017. In case of emergencies, an Emergency Action Plan (EAP) is in place, last revised in December 2019. While no inundation maps or risk assessments are available, the structure meets regulatory guidelines and operates under the supervision of state agencies to ensure safety and compliance.

Chester Diversion plays a crucial role in managing water resources in the Plumas County region, protecting against debris and reducing flood risks for the surrounding area. With its strategic location and design, the dam serves as a vital infrastructure for water management and environmental protection efforts in California. As climate change continues to impact water resources, structures like Chester Diversion remain essential for safeguarding communities and ecosystems against the challenges of a changing climate.