Lockington Dam

Lockington Dam is a dam located north of Piqua, Ohio in Southwest Ohio. It is an earthen dry dam that regulates the flow of Loramie Creek into the Great Miami River to prevent downstream flooding. It consists of 1,135,000 yd³ (868,000 m³) of earth, is 69 feet (21 m) high and stretches 6400 feet (1,950 m) across the valley. The dam can hold back 63,000 acre feet (78,000,000 m³) of flood water over its 3600 acre (15 km²) basin. It was constructed in 1919 primarily using the fill trestle technique. The dam's waterproof impervious core consists of a mixture of clay and sand known as hydraulic fill that was mixed using a sluice. This core is stabilized on each side by a bank of sand and gravel. The dam was constructed and is maintained by the Miami Conservancy District.