Clarence Cannon Dam is a 138 feet (42 m) high and 1,940 feet (590 m) long combination concrete gravity embankment dam. The dam contains 450,000 cubic yards (340,000 m3) of concrete and 3,000,000 cubic yards (2,300,000 m3) of earth-fill. The dam contains a hydroelectric power plant, with two generators, capable of producing up to 58 megawatts (78,000 hp) of power, or enough to supply a town of 20,000 people. When both units are operating at capacity, as much as 5,400,000 US gallons (20,000,000 l; 4,500,000 imp gal) of water pass through the turbines each minute.