Huntington District, West Virginia -- Piedmont Dam is located near the southern border of Harrison County, Ohio, on Stillwater Creek, a tributary of the Tuscarawas River. At summer elevation the Piedmont Lake pool covers 2,312 acres over portions of Harrison, Belmont, and Guernsey Counties. The lake has a maximum depth of 38 feet and there are 38 miles of shoreline. Muskingum Watershed Conservancy District owns the lake and surrounding lands. The U.S. Army Corps of Engineers own and operate the dam. The dam was constructed in 1937 as part of a system of dams designed to provide flood damage reduction in the Muskingum Watershed. The dam continues to provide flood damage reduction, and the lake provides recreation opportunities as well as fish and wildlife habitat.