The Dahuashui Dam is an arch dam

Arch dam

An arch dam is a type of dam that is curved and commonly built with concrete. The arch dam is a structure that is designed to curve upstream so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes...

 on the Qingshuihe River

Qingshuihe River

The Qingshuihe River or simply Qingshui is a tributary of the Wujiang River in Guizhou Province, China. It is interrupted by the Dahuashui Dam....

 near Pingzhai in Kaiyang County

Kaiyang County

Kaiyang County is a county of Guizhou, China. It is under the administration of Guiyang city....

 of Guizhou Province, China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. The purpose of the dam is hydroelectric power production and flood control. The dam creates a reservoir of 276500000 cubic metre which supplies water to a power station containing two 200 MW generators. Construction on the dam began in December 2003 and was expected to be complete in May 2007 but a lack of funding delayed project completion until initial operation on January 20, 2008. The dam was constructed with roller-compacted concrete

Roller-compacted concrete

Roller-compacted concrete or rolled concrete is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for Portland cement. RCC is a mix of cement/fly ash, water, sand, aggregate...

.