Mush Creek, located in Edgemont, South Dakota, is a Federal-owned earth dam built in 1940 by USDA NRCS for fire protection, stock, or small fish pond purposes. The dam stands at a height of 16 feet with a hydraulic height of 16 feet and a structural height of 22 feet, serving as a vital water resource for the area. With a storage capacity of 118 acre-feet and a surface area of 18 acres, Mush Creek plays a crucial role in regulating water flow and providing necessary water for various activities in the region.

The dam, with a low hazard potential and a moderate risk assessment rating, has a drainage area of 19.1 square miles and a maximum discharge capacity of 2500 cubic feet per second. While the condition assessment is currently not available, the dam is inspected every 5 years to ensure its safety and functionality. Despite being uncontrolled, the spillway width of 20 feet helps manage excess water during heavy rainfall events. Mush Creek dam remains a key infrastructure for water resource management in Weston County, Wyoming, contributing to climate resilience and ensuring water security for the local community.

Although details on emergency action plans and risk management measures are not provided, Mush Creek dam continues to serve its primary purposes effectively. As a Federal-owned structure under the Forest Service, the dam plays a crucial role in regulating water flow, providing water for various activities, and ensuring fire protection in the region. With its historic significance dating back to 1940, Mush Creek dam stands as a testament to the importance of water resource management and climate resilience in the face of changing environmental conditions.