Germantown Dam
Appearance
Germantown Dam is a dam located near Germantown, Ohio in Southwest Ohio. It is an earthen dry dam that regulates the flow of Twin Creek into the Great Miami River to prevent downstream flooding. It consists of 865,000 cubic yards of earth, is 100 feet high and 1210 feet wide. The dam can hold back 73,000 acre feet of flood water over its 2950 acres of basin. It was constructed in 1920 using fill trestles. The dam's waterproof impervious core consists of a sluice of clay and sand known as hydraulic fill. 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.