| Dongfeng Dam | |
| Location Map: | China |
| Coordinates: | 26.8553°N 106.155°W |
| Country: | China |
| Location: | Qingzhen |
| Status: | O |
| Construction Began: | 1989 |
| Opening: | 1995 |
| Owner: | Guizhou Wujiang Hydropower Development Co. |
| Dam Type: | Arch |
| Dam Height: | 1620NaN0 |
| Dam Length: | 2540NaN0 |
| Dam Width Crest: | 60NaN0 |
| Dam Width Base: | 250NaN0 |
| Dam Crosses: | Wu River |
| Spillway Capacity: | 25650NaN0 |
| Res Capacity Total: | 10250000000NaN0 |
| Res Capacity Active: | 4910000000NaN0 |
| Res Catchment: | 18160NaN0 |
| Res Elevation: | 9700NaN0 |
| Plant Hydraulic Head: | 1320NaN0 (max) |
| Plant Commission: | 1994-1995 |
| Plant Type: | Conventional |
| Plant Turbines: | 3 x 190 MW Francis-type |
| Plant Capacity: | 570 MW |
| Plant Annual Gen: | 2,420 GWh |
The Dongfeng Dam is an arch dam on the Wu River 650NaN0 northwest of Qingzhen in Guizhou Province, China. The primary purpose of the dam is hydroelectric power generation and it supports a 570 MW power station. Construction on the dam began in 1989 and the first generator was operational in 1994, the last in 1995. The generators were up-rated between 2004 and 2005; bringing their capacity from 170 MW each to 190 MW.
The Dongfeng is a 1620NaN0 tall and 2540NaN0 long parabola-shaped arch dam. The dam is 60NaN0 thick at its crest and 250NaN0 at its base. It sits at the base of a catchment area covering 18160NaN0. The total reservoir capacity is 10250000000NaN0 while 4910000000NaN0 is for regulating. At the reservoir's normal elevation of 9700NaN0 above sea level, the reservoir capacity is 8640000000NaN0. The dam has several discharge facilities; three spillway gates near the crest, three intermediate orifice openings, one chute spillway on the left bank and beside it, one spillway tunnel. The maximum discharge capacity of the spillways is 25650NaN0 while all openings, including the power station tailrace, can discharge 123690NaN0. The power station is located underground on the right bank of the dam. The intake releases water to three headrace tunnels which transfer into penstocks and supply each of the 190 MW Francis turbine-generators. Water is discharged back into the river via one tailrace tunnel.[1] [2] [3]