Tenkiller Ferry Dam is a concrete dam located on the Illinois River in eastern Oklahoma. Completed in 1953, it was built for flood control, water supply, and recreation. The dam creates Tenkiller Ferry Lake, which is popular for fishing, boating, and camping. The dam is operated by the U.S. Army Corps of Engineers and plays a crucial role in managing water resources in the region. It helps maintain water levels and provides recreational opportunities for visitors, contributing to the local economy and environment.