Tsubawara Dam

Tsubawara Dam
Tsubawara Dam
	Overview of the dam in 1977
	Location of Tsubawara Dam in Japan
Country	Japan
Location	Shirakawa, Gifu Prefecture
Coordinates	36°18′45″N136°53′51″E / 36.31250°N 136.89750°E Coordinates: 36°18′45″N136°53′51″E / 36.31250°N 136.89750°E
Purpose	Power
Status	Operational
Construction began	1952
Opening date	1953
Dam and spillways
Type of dam	Gravity
Impounds	Shō River
Height	68.2 m (224 ft)
Length	201.7 m (662 ft)
Dam volume	163,000 m3 (213,000 cu yd)
Spillway type	Crest overflow, 7 tainter gates
Reservoir
Total capacity	22,274,000 m3 (18,058 acre⋅ft)
Active capacity	5,788,000 m3 (4,692 acre⋅ft)
Catchment area	665.7 km2 (257.0 sq mi)
Surface area	1.16 km2 (0.45 sq mi)
Normal elevation	460.5 m (1,511 ft)
Power Station
Operator(s)	Kansai Electric Power Co., Inc.
Commission date	Original: 8 January 1954; New: 27 March 1975
Hydraulic head	Original: 65.30 m (214.2 ft); New: 62 m (203 ft)
Turbines	Original: 1 x 42 MW Francis-type ; New: 1 x 65 MW Francis-type
Installed capacity	107 MW

Last updated March 22, 2019

The Tsubawara Dam, also known as the Tsubakihara Dam, is a gravity dam on the Shō River about 5 km (3.1 mi) north of Shirakawa in Gifu Prefecture, Japan. It was constructed between 1952 and 1953. The dam has an associated 107 MW hydroelectric power station which was built in two parts. The first part of the power station (42 MW) was commissioned in 1954 and the second part of the power station (65 MW) was commissioned in 1975. Of the nine dams on the Shō River it is the seventh furthest downstream.^[1]^[2]

A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by primarily using the weight of the material alone to resist the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable, independent of any other dam section.

The Shō River has its source in Mount Eboshi in the Shōkawa-chō area of Takayama, Gifu Prefecture, Japan. After flowing for 115 km (71 mi) through the northern part of Gifu Prefecture and the western part of Toyama Prefecture, it empties into Toyama Bay.

Shirakawa is a village located in Ōno District, Gifu Prefecture, Japan. It is best known for being the site of Shirakawa-gō, a small, traditional village showcasing a building style known as gasshō-zukuri. Together with Gokayama in Nanto, Toyama, it is one of UNESCO's World Heritage Sites.

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References

↑ "Kansai Electric Power Tsubawara power plant" (in Japanese). Suiryoku. Retrieved 28 July 2013.
↑ "Kansai Electric Power new Tsubawara power plant" (in Japanese). Suiryoku. Retrieved 28 July 2013.

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[1] "Kansai Electric Power Tsubawara power plant" (in Japanese). Suiryoku. Retrieved 28 July 2013.

[2] "Kansai Electric Power new Tsubawara power plant" (in Japanese). Suiryoku. Retrieved 28 July 2013.

Tsubawara Dam

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