Sioux Falls Diversion, located in Minnehaha, South Dakota, along the Big Sioux River, is a gravity dam completed in 1960 with a height of 21 feet and a storage capacity of 1200 acre-feet. This structure is owned by the local government and regulated by the South Dakota Department of Environment and Natural Resources. It serves a significant purpose in flood control and water management for the city of Sioux Falls, with a maximum discharge capacity of 18600 cubic feet per second.

The dam's condition is currently not rated, but it is considered to have a significant hazard potential. Despite lacking recent inspection data, the dam is regularly permitted, inspected, and enforced by the state regulatory agency. With Dusty Johnson as the representative for the area in Congress, the Sioux Falls Diversion plays a crucial role in ensuring the safety and resilience of the community in the face of potential water-related emergencies. Enthusiasts of water resources and climate will find this dam an essential piece of infrastructure in maintaining the region's water security.

As a key feature in the St. Paul District, Sioux Falls Diversion serves as a vital component in the overall water management strategy for South Dakota. Its design and construction reflect the importance of controlling water flow and preventing potential flooding events along the Big Sioux River. With a history dating back to the 1960s, this gravity dam continues to play a crucial role in safeguarding the city of Sioux Falls and its surrounding areas from the impacts of extreme weather events and ensuring sustainable water resource management for the community.