The Shiyazi Dam is a concrete gravity dam on the Hongjiadu River, a tributary of the Wu River, in Wuchuan County

Wuchuan Gelao and Miao Autonomous County

Wuchuan Gelao and Miao Autonomous County is a county of Guizhou, China. It is under the administration of Zunyi city....

, Guizhou Province, China. The primary purpose of the dam is hydroelectric power generation. Construction on the dam began in 2007, the reservoir began to fill in September 2010 and both 70 MW Francis turbine

Francis turbine

The Francis turbine is a type of water turbine that was developed by James B. Francis in Lowell, Massachusetts. It is an inward-flow reaction turbine that combines radial and axial flow concepts....

-generators were operational at the end of December 2010. The dam was constructed using the 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...

method. The 134.5 m (441 ft) tall dam withholds a reservoir with a capacity of 321500000 cubic metre.