Lake Shelbyville

Lake Shelbyville is a reservoir located in Shelby County, Illinois and Moultrie County, Illinois created by damming the Kaskaskia River at Shelbyville, Illinois. The lake's normal surface pool is 11,100 acres at an elevation of 183 meters. The area that surrounds the lake is the Shelbyville State Fish and Wildlife Area. The lake is managed by the United States Army Corps of Engineers, and the wildlife is managed by the Illinois Department of Natural Resources.

$57 million was appropriated for the dam and lake project. Groundbreaking on the dam occurred May 4, 1963. Filling of the reservoir began August 1, 1970. The lake was officially dedicated September 12, 1970. The dam is 3,025 feet long and 108 feet tall with normal pool height 17 feet below the top.