Danjiangkou Dam

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.

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
CountryChina
LocationDanjiangkou
Coordinates32°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 began1958
Opening date1973
Dam and spillways
ImpoundsHan river
Height111.6 m (366 ft)
Length2,494 m (8,182 ft)
Elevation at crest176.6 m (579 ft)
Reservoir
CreatesDanjiangkou Reservoir
Total capacity17,450,000,000 m3 (14,146,945 acre⋅ft)
Power Station
Commission date1968-1973
Turbines6 x 150 MW
Installed capacity900 MW

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.

HeighteningEdit

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 alsoEdit

ReferencesEdit

  1. ^ "Middle Route Project (MRP)". NSBD. Archived from the original on 30 October 2013. Retrieved 31 January 2011.
  2. ^ "Danjiang Reservoir" (in Chinese). SYIPTV.COM. Archived from the original on 30 October 2013. Retrieved 31 January 2011.
  3. ^ "Completed Dam crest heightening to 176.6 m" (in Chinese). Qinchu Network. Archived from the original on 5 February 2010. Retrieved 31 January 2011.
  4. ^ "Danjiangkou Hydropower Station". China Gate. Retrieved 31 January 2011.