Lake Springfield

Lake Springfield is a 3,965-acre (16.05 km2) reservoir in the southeast of the capital city of Springfield, Illinois. It is 560 ft (170 m) above sea level. The lake was formed by building Spaulding Dam across Sugar Creek, a tributary of the Sangamon River. It is the largest municipally owned body of water in Illinois. The lake and the lands adjoining it are all owned by City Water, Light & Power, the municipal utility for the city of Springfield, which operates the Dallman Power Plant at the lake's north end. Multiple city parks border its more than 50 miles (80 km) of shoreline. The lake is crossed by several bridges, including the Interstate 55 bridge. Its principal tributaries are Sugar Creek and Lick Creek, and its waters discharge through Spaulding Dam to the lower Sugar Creek valley, which flows into the Sangamon River. The lake was created in the 1930s as a source of water for Springfield and to provide cooling water for the City Water, Light & Power coal-fired electrical generating plant. It has also served as a focus of local recreation. High-powered motor boats and aquatic sports are allowed on much of the lake, and the lake is known for warm-water fish.

Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).