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 | |
|---|---|
 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 |
| 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 |
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
editOriginally, the dam 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- ^ "Middle Route Project (MRP)". NSBD. Archived from the original on 30 October 2013. Retrieved 31 January 2011.
- ^ "Danjiang Reservoir" (in Chinese). SYIPTV.COM. Archived from the original on 30 October 2013. Retrieved 31 January 2011.
- ^ "Completed Dam crest heightening to 176.6 m" (in Chinese). Qinchu Network. Archived from the original on 5 February 2010. Retrieved 31 January 2011.
- ^ "Danjiangkou Hydropower Station". China Gate. Archived from the original on 13 August 2011. Retrieved 31 January 2011.