| Geheyan Dam | |
|---|---|
| Official name | 隔河岩大坝 |
| Location | Changyang Tujia Autonomous County, Hubei, China |
| Coordinates | |
| Construction began | 1987 |
| Opening date | 1993 |
| Construction cost | ¥5 billion |
| Dam and spillways | |
| Type of dam | Arch-gravity dam[1] |
| Height | 157 m (515 ft) |
| Impounds | Qingjiang River |
| Reservoir | |
| Capacity | 3,400,000,000 m3 (2,756,425 acre·ft)[2] |
| Power station | |
| Operator(s) | HQHDC |
| Turbines | 4 × 310MW |
| Installed capacity | 1,240 MW |
The Geheyan Dam (simplified Chinese: 隔河岩大坝; traditional Chinese: 隔河岩大壩; pinyin: Géhéyán Dàbà) is an arch-gravity dam on the Qingjiang River, a tributary of the Yangtze River, in Hubei, China.[3]
The dam is located in Changyang Tujia Autonomous County (which is part of the prefecture-level city of Yichang), just a few kilometers to the west (upstream) from the county seat.
The dam is designed in 1987,[4] and is equipped with a ship lift capable of lifting vessels of 300,000 kg (660,000 lb) displacement.[5] The dam played an important role in helping to ameliorate the impact of the 1998 Yangtze Floods.
Power is generated by four units rated at 310 MW each, totalling the installed capacity at 1,240 MW.[6]