The Oberreuter Dam, located in Mapleton, Iowa, is a privately owned structure designed by the USDA NRCS and regulated by the Iowa DNR. Completed in 1973, this earth dam stands at a height of 28 feet and has a length of 430 feet, serving primarily for fire protection, stock, and small fish pond purposes. With a storage capacity of 40 acre-feet and a surface area of 3.1 acres, the dam is situated on the TR-Reynolds Creek and has a low hazard potential.

Managed by the Natural Resources Conservation Service, the Oberreuter Dam has a moderate risk rating and has not been assessed for its condition. While it has not been inspected in recent years, the dam is equipped with an uncontrolled spillway and is considered to meet regulatory guidelines. With a drainage area of 0.24 square miles, the dam plays a crucial role in water resource management in Woodbury County, Iowa, providing essential benefits for both the local community and the environment.

Despite its low hazard potential, the Oberreuter Dam plays a significant role in water resource management in the region, ensuring fire protection, stock watering, and small fish pond needs are met. With its construction overseen by the USDA NRCS and regulation by the Iowa DNR, this earth dam stands as a testament to sustainable water infrastructure development and management practices in Iowa.