Ohara Dam

Ohara Dam
File:Ohara Dam.jpg Downstream face
Location of Ohara Dam in Japan
Country	Japan
Location	Ohara, Toyama Prefecture
Coordinates
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.

See also

• Soyama Dam – downstream
• Akao Dam – upstream