Lake Waco is a man-made reservoir located on the west side of Waco, in McLennan County, Texas. It provides water to several cities in the Waco Metropolitan Statistical Area, including Waco (pop. 135,858), Bellmead (pop. 9,901), Hewitt (pop. 13,368), Robinson (pop. 10,509), Woodway (pop. 8,452) and others in the Cross Timbers and Prairies ecoregion of Texas. Lake Waco was formed by a dam built on the Bosque River basin. The lake has 79,000 acre-feet (97,000,000 m3) of water and is managed by the U.S. Army Corps of Engineers.