The Elk River Dam, completed in 1952,[1] impounds the Elk River in the US state of Tennessee to form the Woods Reservoir.
The US Air Force and Arnold Engineering Development Center own and operate Woods Reservoir.
[1] The dam itself is just under 3,000 feet long and holds back 26 billion gallons of water on a 3,980-acre (1,610 ha) reservoir.
[2] The water is used to help the Arnold Air Force Base with cooling of their wind-tunnel equipment.
[2] Water exiting from the dam flows along the Elk River into Tims Ford Lake.