Danjiangkou Dam

The Danjiangkou Dam 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.

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
Originally, the dam was 97 m tall and 2494 m long. Since its heightening, the dam is now 111.6 m tall and 3442 m long. The original crest elevation was 162 m and is now 176.6 m. The increase in height will add 11600000000 m3 to the reservoir's capacity bring it to 29050000000 m3. Currently, the reservoir has a capacity of 17450000000 m3.

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.