Fanchers Dam, located in Tonasket, Washington, is a vital structure owned by the Tribal Government and regulated by the Washington Dept of Ecology. Completed in 1926, this Earth-type dam on Antoine Creek serves multiple purposes, including irrigation and recreation. With a height of 60 feet and a hydraulic height of 68 feet, the dam has a storage capacity of 600 acre-feet and covers a surface area of 28 acres.

Despite its historical significance, Fanchers Dam has a high hazard potential and poor condition assessment, with the last inspection date in August 2016. The dam poses a potential risk to the surrounding area, emphasizing the importance of regular inspections and maintenance. The emergency action plan (EAP) for the dam was last revised in July 2020, highlighting the need for ongoing risk assessment and management measures to ensure the safety of nearby communities.

As a key feature in the Okanogan region, Fanchers Dam plays a critical role in water resource management and climate resilience. With its proximity to Congressional District 04 and the Seattle District of the US Army Corps of Engineers, the dam serves as a vital infrastructure for both local residents and the environment. Ongoing efforts to improve the dam's condition and update its emergency preparedness plans are essential to safeguarding the surrounding area from potential risks and ensuring the sustainable use of water resources for future generations.