Danjiangkou Dam

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Danjiangkou Dam
Danjiangkou Reservoir.svg
Map of reservoir (dam in red)
Danjiangkou Dam is located in China
Danjiangkou Dam
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.

Heightening[edit]

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).[1][2][3]

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.[4]

See also[edit]

References[edit]

  1. ^ "Middle Route Project (MRP)". NSBD. Retrieved 31 January 2011. 
  2. ^ "Danjiang Reservoir" (in Chinese). SYIPTV.COM. Retrieved 31 January 2011. 
  3. ^ "Completed Dam crest heightening to 176.6 m" (in Chinese). Qinchu Network. Retrieved 31 January 2011. 
  4. ^ "Danjiangkou Hydropower Station". China Gate. Retrieved 31 January 2011.