The Silin Dam (Chinese: 思林水坝) is a concrete gravity dam on the Wu River in Sinan County, Guizhou Province, China. The dam has an associated hydroelectric power plant with a 1,080 MW capacity utilizing 4 x 270 MW Francis turbine-generators. The dam is 310 m (1,017 ft) long, 117 m (384 ft) high and composed of roller-compacted concrete. Its reservoir has a 1,205,000,000 m3 (976,909 acre⋅ft) capacity, 184,000,000 m3 (149,171 acre⋅ft) of which is flood storage. The dam also supports ship lift. Construction on the dam began in October 2004, the dam began to impound the river in March 2008 and by May 2009, the power plant's first generator was operational. The remaining generators were operational by December 2009.