Dd No C-10 is a local government-owned earth dam located on Elm Creek in Coffey, Kansas. Completed in 1996, this dam serves the primary purpose of flood risk reduction and has a height of 27 feet and a length of 650 feet. With a storage capacity of 187 acre-feet and a normal storage level of 28.65 feet, Dd No C-10 covers a surface area of 5.05 acres and drains a 0.66 square mile watershed.

Despite being classified as having a low hazard potential and not yet rated for condition assessment, Dd No C-10 presents a moderate risk level. With an uncontrolled spillway width of 40 feet and no outlet gates, this dam has not been inspected since its completion in 1996. While it is not regulated by the state and lacks a formal emergency action plan, Dd No C-10 stands as an essential structure for flood risk mitigation in the area, showcasing the importance of proper maintenance and monitoring for water resource and climate enthusiasts to ensure its continued effectiveness.