The Shapai Dam is an arch dam on the Caopo River in Wenchuan County, Ngawa, Sichuan Province, China. The dam is 130 metres (427 ft) tall and composed of roller-compacted concrete. There are no spillways on the face of the dam but two tunnels are utilized with a discharge capacity of 453 cubic metres per second (15,998 cu ft/s). A single penstock feeds water to a power station 5 kilometres (3 mi) downstream. The power station contains 2 x 18 MW generators with a combined capacity of 36 MW.^[1]

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Shapai Dam
Location of Shapai Dam in China
Country	China
Location	Caopo Town, Wenchuan County, Ngawa, Sichuan Province
Coordinates	31.3161°N 103.3708°E / 31.3161; 103.3708
Status	In use
Opening date	2002
Dam and spillways
Type of dam	Arch
Impounds	Caopo River
Height	130 metres (427 ft)
Length	230 metres (755 ft)
Width (crest)	9.5 metres (31 ft)
Width (base)	28 metres (92 ft)
Dam volume	356,000 cubic metres (12,572,021 cu ft)
Spillways	Two discharge tunnels
Spillway capacity	453 cubic metres per second (15,998 cu ft/s)
Reservoir
Creates	Shapai Reservoir
Total capacity	3,135,000,000 cubic metres (2,541,586 acre⋅ft)
Catchment area	239.2 square kilometres (92 sq mi)
Power Station
Hydraulic head	270 metres (886 ft)
Turbines	4 x 18 MW
Installed capacity	36 MW

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