Dongjiang Dam

The Dongjiang Dam is an arch dam on the Lishui River 14 km southwest of Zixing in Hunan Province, China. The dam was constructed between 1978 and 1992 and supports a 500 MW hydroelectric power station. The dam also provides for flood control, navigation and water supply. The dam's first generator was operational in 1987 and the reservoir, Dongjiang Lake, forced the relocation of 52 thousand people.

Design
The Dongjiang is a 157 m tall and 438 m long variable-radius arch dam. The dam is 7 m wide at its crest, 35 m at its base and has a curve radius of 302.3 m. Situated at the head of a 4719 km2 catchment area, the dam withholds a reservoir of up to 9565000000 m3 of water. The dam's power station lies at its base and contains four 125 MW Francis turbine-generators. The height of the dam affords each generator an effective hydraulic head of 118.5 m. The dam is also equipped with a boat/lumber lift.