The Dahuashui Dam is an arch dam on the Qingshuihe River near Pingzhai in Kaiyang County of Guizhou Province, China. The purpose of the dam is hydroelectric power production and flood control. The dam creates a reservoir of 276,500,000 m³ (224,162 acre⋅ft) 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.^[1][2][3]

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Dahuashui Dam
Location of Dahuashui Dam in China
Country	China
Location	Kaiyang County of Guizhou Province
Coordinates	26°49′26″N 107°15′54″E
Construction began	December 2003
Opening date	2008
Dam and spillways
Impounds	Qingshui River
Height	134.5 m (441 ft)
Length	287.6 m (944 ft)
Width (base)	28 m (92 ft)
Reservoir
Creates	Dahuashui Reservoir
Total capacity	276,500,000 m3 (224,162 acre⋅ft)
Surface area	7.6 km2 (3 sq mi)
Power Station
Commission date	January 2008
Hydraulic head	127.7 m (419 ft) (min.)
Installed capacity	200 MW
Annual generation	775 GWh

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