Marsh Dam, also known as Marsh Lake, is a federal-owned structure located in Montevideo, Minnesota. Completed in 1942 by the US Army Corps of Engineers, this earth dam serves primarily for flood risk reduction along the Minnesota River. It stands at a height of 28 feet and has a storage capacity of 91,000 acre-feet, with a surface area of 5,100 acres.

With a low hazard potential, Marsh Dam has been equipped with necessary risk management measures by the US Army Corps of Engineers. Regular inspections, maintenance, and emergency action plans are in place to address any potential issues and ensure the structural integrity of the dam. The Corps works closely with local emergency managers and the public to raise awareness and readiness for any dam-related emergencies. Additionally, the dam's limited water storage capacity and potential for dam releases during severe weather events are carefully monitored to prevent any adverse impacts downstream. More details specific to Marsh Dam will be updated in the future to further enhance its risk management strategies.