Danjiangkou Dam

Danjiangkou Dam
Map of reservoir (dam in red)
Location of Danjiangkou Dam in China
Country	China
Location	Danjiangkou
Coordinates	32°33′22″N 111°29′17″E / 32.55611°N 111.48806°E / 32.55611; 111.48806Coordinates: 32°33′22″N 111°29′17″E / 32.55611°N 111.48806°E / 32.55611; 111.48806
Construction began	1958
Opening date	1973
Dam and spillways
Impounds	Han river
Height	111.6 m (366 ft)
Length	2,494 m (8,182 ft)
Elevation at crest	176.6 m (579 ft)
Reservoir
Creates	Danjiangkou Reservoir
Total capacity	17,450,000,000 m3 (14,146,945 acre·ft)
Power station
Commission date	1968-1973
Turbines	6 x 150 MW
Installed capacity	900 MW

The Danjiangkou Dam (Chinese: 丹江口大坝; pinyin: Dānjiāngkǒu Dàbà) is a concrete gravity dam on the Han river near Danjiangkou in Hubei Province, China. The original dam was constructed between 1958 and 1973. The dam creates a large Danjiangkou Reservoir.

In the 21st century, the Danjiangkou Dam became part of the South-North Water Transfer Project. In 2005-2009 its height was raised in order to increase the reservoir's capacity.

Originally it was 97 m (318 ft) tall and 2,494 m (8,182 ft) long. Since its heightening, the dam is now 111.6 m (366 ft) tall and 3,442 m (11,293 ft) long. The original crest elevation was 162 m (531 ft) and is now 176.6 m (579 ft). The increase in height will add 11,600,000,000 m³ (9,404,273 acre·ft) to the reservoir's capacity bring it to 29,050,000,000 m³ (23,551,218 acre·ft). Currently, the reservoir has a capacity of 17,450,000,000 m³ (14,146,945 acre·ft).

The dam's power plant also contains 6 x 150 MW turbine generators for an installed capacity of 900 MW. This will increase with the heightened reservoir.