Appanoose County Roadgrade Dam 32-68-18, located in Mendota, Missouri, is a local government-owned structure designed by USDA SCS to serve multiple purposes, including fire protection, stock maintenance, and small fish pond management. Completed in 1969, this earth dam stands at a height of 30 feet and stretches for 530 feet, with a storage capacity of 129 acre-feet and a surface area of 6 acres. Situated on TR-Shoal Creek, the dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections, enforcement, and permitting to ensure its safety and functionality.

Despite its low hazard potential and moderate risk assessment, the condition of Appanoose County Roadgrade Dam 32-68-18 is currently not rated. Emergency action plans and inundation maps have not been prepared, but the dam meets regulatory guidelines and is inspected by the Iowa DNR. With a drainage area of 0.43 square miles and a controlled spillway, the dam serves as a vital resource for the local community's water needs and ecosystem health. Water resource and climate enthusiasts can appreciate the importance of this dam in providing essential services while managing potential risks associated with its operation.