The Lewisville Dam is a significant structure located on the Elm Fork of the Trinity River in Lewisville, Texas. Completed in 1955, it was built to provide flood control, water supply, and recreational opportunities for the surrounding area. The dam creates the Lewisville Lake, which serves as a vital resource for local communities. The dam is operated by the U.S. Army Corps of Engineers and plays a crucial role in managing water levels and preventing flooding downstream. It also supports various activities such as fishing, boating, and camping, making it a popular destination for outdoor enthusiasts.