Wagner, located in Sequatchie, Tennessee, is a private dam that is under the regulatory jurisdiction of the Tennessee Safe Dams Program. Completed in 1999, this Earth-type dam serves primarily for recreational purposes on Johnson Mill Creek. With a hydraulic height of 25.2 feet and a structural height of 32.8 feet, Wagner has a storage capacity of 271 acre-feet and a normal storage of 67 acre-feet, covering a surface area of 11.8 acres.

Despite being classified as having a low hazard potential, Wagner underwent a satisfactory condition assessment as of October 2020. The dam is inspected every three years, with the last assessment revealing no immediate risks or concerns. While the risk assessment indicates moderate risk, the dam's emergency action plan and risk management measures are currently unspecified.

Wagner provides a vital recreational resource within the region, offering both leisure and enjoyment to local residents and visitors alike. With its serene surroundings and stable condition, Wagner stands as a testament to responsible dam management and the importance of water resource conservation in Tennessee.