Chippewa Diversion Dam, also known as Watson Sag and Chippewa River Channel, is a federal-owned structure located in Minnesota. Completed in 1951, this earth dam serves primarily for flood risk reduction, with additional purposes including fish and wildlife pond creation, recreation, and water supply. The dam stands at 20 feet high and stretches 12,000 feet in length, with a maximum discharge capacity of 6,000 cubic feet per second.

Despite being classified as a low hazard dam, Chippewa Diversion Dam is considered a moderate-risk structure by the US Army Corps of Engineers (USACE). Concerns for overtopping near abutments and wing walls, as well as intermittent scour downstream, prompted this risk assessment. However, the potential consequences of a breach are minimal, with downstream impacts limited to a few inches in water surface profiles during large floods. To manage and mitigate these risks, USACE continuously monitors and maintains the dam to ensure its proper functioning and safety for surrounding communities.

USACE's risk management measures for Chippewa Diversion Dam include regular inspections, maintenance, and repairs as needed to reduce potential hazards to the public. By prioritizing activities that address the identified risks, USACE aims to maintain the dam's integrity and safeguard against potential issues. With a commitment to proactive risk management, Chippewa Diversion Dam continues to play a crucial role in flood risk reduction and water resource management in the region.