Mcnary Lock and Dam, situated in Oregon along the Columbia River, is a vital structure owned and operated by the US Army Corps of Engineers for flood risk reduction. Completed in 1952, this earth dam is part of a larger system of 12 associated structures aimed at managing water levels and preventing potential flooding in the area. The dam's primary purpose is to mitigate the risk of inundation and protect the surrounding communities from the hazards posed by high water levels.

With a high hazard potential, the US Army Corps of Engineers closely monitors and manages the flood risks associated with the dam. Regular inspections, emergency action plans, and risk assessment measures are in place to ensure the structural integrity of the dam and the safety of the nearby residents. By working collaboratively with local emergency managers and the public, the Corps aims to raise awareness, prepare for emergencies, and respond effectively in the event of a dam-related crisis. As climate change continues to bring unpredictable weather patterns, the importance of proactive risk management strategies at Mcnary Lock and Dam becomes increasingly evident, showcasing the critical role it plays in safeguarding the community against potential flooding events.