Ohara Dam

Ohara Dam

Downstream face
Location of Ohara Dam in Japan
Country Japan
Location Ohara, Toyama Prefecture
Coordinates 36°24′03.97″N 136°54′32.51″E / 36.4011028°N 136.9090306°E / 36.4011028; 136.9090306Coordinates: 36°24′03.97″N 136°54′32.51″E / 36.4011028°N 136.9090306°E / 36.4011028; 136.9090306
Purpose Power
Status Operational
Construction began 1939
Opening date 1942
Dam and spillways
Type of dam Gravity
Impounds Shō River
Height 52 m (171 ft)
Length 158.2 m (519 ft)
Dam volume 93,000 m3 (122,000 cu yd)
Spillway type Crest overflow, 8 tainter gates
Reservoir
Total capacity 11,741,000 m3 (9,519 acre·ft)
Active capacity 5,099,000 m3 (4,134 acre·ft)
Catchment area 814.5 km2 (314.5 sq mi)
Surface area .56 km2 (0.22 sq mi)
Normal elevation 318.6 m (1,045 ft)
Power Station
Operator(s) Kansai Electric Power Co., Inc.
Commission date Original: 2 December 1942
New: 4 April 1980
Hydraulic head Original: 39.2 m (129 ft)
New: 52.6 m (173 ft)
Turbines Original: 3 x 17.1 MW Francis-type
New: 1 x 46.3 MW Francis-type
Installed capacity 97.6 MW

The Ohara Dam is a gravity dam on the Shō River in Ohara village about 17 km (11 mi) south of Nanto in Toyama Prefecture, Japan. It was constructed between 1939 and 1942. The dam has an associated 97.6 MW hydroelectric power station which was built in two parts. The first part of the power station (51.3 MW) was commissioned in 1942 and the second part of the power station (46.3 MW) was commissioned in 1980. Of the nine dams on the Shō River it is the fourth furthest downstream.[1]

See also

References

  1. ↑ "Hydroelectric power plant Soyama" (in Japanese). Suiryoku. Retrieved 16 July 2013.
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