Dachaoshan Dam
From Wikipedia, the free encyclopedia
| Dachaoshan Dam | |
|---|---|
  Location of Dachaoshan Dam in China | |
| Country | China |
| Location | Yunnan Province |
| Coordinates | 24°01′28″N 100°22′09″E / 24.02444°N 100.36917°E |
| Status | In use |
| Construction began | 1997 |
| Opening date | 2003 |
| Construction cost | RMB¥8.87 billion ($1.3 billion USD) |
| Owner(s) | Yunnan Dachaoshan Hydropower Co., Ltd. |
| Dam and spillways | |
| Type of dam | Gravity, roller-compacted concrete |
| Impounds | Lancang (Mekong) River |
| Height | 111 m (364 ft) |
| Length | 460 m (1,509 ft) |
| Dam volume | 1,126,700 m3 (39,789,035 cu ft) |
| Spillways | 5 |
| Spillway type | Controlled, crest overflow |
| Reservoir | |
| Creates | Dachaoshan Reservoir |
| Total capacity | 940,000,000 m3 (762,070 acre⋅ft) |
| Catchment area | 121,000 km2 (46,718 sq mi) |
| Power Station | |
| Commission date | 2001-2003 |
| Hydraulic head | 72.5 m (238 ft) (rated) |
| Turbines | 6 x 225 MW |
| Installed capacity | 1,350 MW |
| Annual generation | 5931 GWh |
The Dachaoshan Dam (Chinese: 大朝山大坝) is a gravity dam on the Lancang (Mekong) River in Yunnan Province, China. The sole purpose of the dam is hydroelectric power production as it supplies water to a power station containing six 225 MW generators for a total installed capacity of 1,350 MW.
Initial construction preparations on the dam began in 1993 before it was approved ready for construction in 1994. On August 4, 1997, the project was approved for construction commencement and on November 10, 1997, the river was diverted. Between 2001 and 2003, the dam was complete and all six generators went operational.[1]
