Mud Creek Subwatershed Site 15-1, located in Plymouth County, Iowa, is a crucial earth dam structure designed by the USDA NRCS in 1973 for fire protection, stock, small fish pond, and flood risk reduction purposes. With a dam height of 36 feet and a length of 996 feet, this site has a storage capacity of 115 acre-feet and covers a surface area of 5.4 acres, serving a drainage area of 0.6 square miles. The dam is regulated by the Iowa DNR and undergoes state permitting, inspection, and enforcement protocols, ensuring its safety and functionality.

Despite being classified as having a low hazard potential, the site is deemed to have a moderate risk rating of 3 due to its location and structural characteristics. The dam features an uncontrolled spillway type and is primarily constructed with soil foundations. While the condition assessment is currently not rated, the site's risk management measures and emergency action plan status are under review. The proximity of Mud Creek Subwatershed Site 15-1 to the TR-Mud Creek and its importance for local fire protection and flood risk reduction make it an essential water resource infrastructure in the region, managed by local government authorities and the Natural Resources Conservation Service.

Overall, Mud Creek Subwatershed Site 15-1 stands as an essential component of water resource management in Plymouth County, Iowa, catering to fire protection, stock, small fish pond, and flood risk reduction needs. With its regulated state jurisdiction and regular inspection processes, the site ensures the safety of its surrounding environment and communities. As a key earth dam structure with a significant storage capacity and surface area, this site exemplifies the importance of sustainable water resource management and climate resilience efforts in the region.