Mirage Flats Dam, located in Dawes County, Nebraska, is a privately owned structure designed by the USDA NRCS with a primary purpose of flood risk reduction. Completed in 1973, this earth dam stands at a height of 40 feet, with a hydraulic height of 38 feet and a structural height of 48 feet. It has a length of 1970 feet and a storage capacity of 2430 acre-feet, serving to protect the surrounding area from potential flooding events.

This dam, regulated by the Nebraska Department of Natural Resources, has a low hazard potential and is in satisfactory condition, as assessed in July 2019. With a drainage area of 1.5 square miles and a maximum discharge capacity of 7251 cubic feet per second, Mirage Flats Dam plays a crucial role in managing water flow and mitigating flood risks in the region. While it has not undergone major modifications in recent years, regular inspections ensure its ongoing functionality and safety.

Mirage Flats Dam, situated in the picturesque landscape near Valentine, Nebraska, underscores the importance of strategic water resource management in the face of changing climatic conditions. With its effective flood risk reduction mechanisms and solid construction, this dam stands as a testament to the collaborative efforts between private owners and government agencies in safeguarding communities against potential water-related hazards.