Koch Dam, located in Clarke County, Iowa, was completed in 1976 and serves multiple purposes including fire protection, creating a stock or small fish pond, and supplying water. The dam is owned and regulated by the local government and falls under the jurisdiction of the Iowa Department of Natural Resources. With a height of 25 feet and a length of 170 feet, Koch Dam has a storage capacity of 51 acre-feet and covers a surface area of 3.8 acres. The dam is primarily constructed with earth and has a soil foundation.

Despite being classified as having a low hazard potential and a moderate risk assessment, Koch Dam has not been rated for its condition. The dam has an uncontrolled spillway and is not equipped with outlet gates. The emergency action plan for the dam has not been prepared, and the last inspection date is unknown. However, the dam is regularly inspected and maintained by the state regulatory agency to ensure its safety and functionality. With its strategic location on the TR-South River, Koch Dam plays a crucial role in water resource management and climate resilience efforts in the region.

Overall, Koch Dam stands as a vital infrastructure for fire protection, stock, and water supply in the Clarke County area. As a locally owned and regulated structure, the dam contributes to the conservation and management of water resources while also providing recreational opportunities for the community. With its low hazard potential and moderate risk assessment, continued monitoring and maintenance of Koch Dam are essential to ensure its long-term effectiveness and safety for both residents and the environment.