Bagnell Dam is a concrete dam located on the Osage River in central Missouri, USA. Completed in 1931, it was built to create the Lake of the Ozarks, a large reservoir that provides hydroelectric power, flood control, and recreational opportunities. The dam is approximately 2,543 feet long and 148 feet high. The construction of Bagnell Dam significantly transformed the region, leading to the development of tourism and various water activities. The lake created by the dam is one of the largest in the United States, attracting visitors for boating, fishing, and other outdoor pursuits, contributing to the local economy and community.