Tom Jenkins Dam was completed in February 1950 and serves a drainage area of 32.8 square miles. The lake is impounded by a rolled earth dam, 84 ft. tall and 560 ft. long, with an uncontrolled saddle spillway near the left abutment of the dam. The outlet works include three sluice gates that discharge through a horseshoe tunnel through the left abutment of the dam into a stilling basin.