Toga Dam

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Toga Dam
Japan location map with side map of the Ryukyu Islands.svg
Red pog.svg
Location of Toga Dam in Japan
Country Japan
Location Omaki, Toyama Prefecture
Coordinates 36°28′28.49″N137°01′21.04″E / 36.4745806°N 137.0225111°E / 36.4745806; 137.0225111 Coordinates: 36°28′28.49″N137°01′21.04″E / 36.4745806°N 137.0225111°E / 36.4745806; 137.0225111
Purpose Power
Status Operational
Construction began 1941
Opening date 1943
Dam and spillways
Type of dam Gravity
Impounds Togagawa River
Height 31 m (102 ft)
Length 70 m (230 ft)
Dam volume 21,000 m3 (27,000 cu yd)
Spillway type Crest overflow, two tainter gates
Reservoir
Total capacity 1,113,000 m3 (902 acre⋅ft)
Active capacity 923,000 m3 (748 acre⋅ft)
Catchment area 92.3 km2 (35.6 sq mi)
Surface area 140 m2 (0.035 acres)
Normal elevation 391 m (1,283 ft)
Omaki Power Station
Coordinates 36°28′34″N136°58′54″E / 36.47611°N 136.98167°E / 36.47611; 136.98167
Operator(s) Kansai Electric Power Co., Inc.
Commission date 18 May 1944
Hydraulic head 194.23 m (637.2 ft)
Turbines 2 x 8.8 MW Francis-type
Installed capacity 17.6 MW

The Toga Dam is a gravity dam on the Togagawa River (a tributary of the Shō River) near Omaki village about 11 km (6.8 mi) southeast of Shogawa in Toyama Prefecture, Japan. It was constructed between 1941 and 1943. The dam diverts water to the 17.6 MW Omaki hydroelectric power station 4.3 km (2.7 mi) to the west on the Shō River. It was commissioned in 1944. [1]

Gravity dam

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.

Shō River river in Japan

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.

Shōgawa was a town located in Higashitonami District, Toyama Prefecture, Japan.

See also

Komaki Dam

The Komaki Dam is an arch-gravity dam on the Shō River about 2.5 km (1.6 mi) southeast of Shogawa in Toyama Prefecture, Japan. It was constructed between 1925 and 1930. The dam has an associated 90.2 MW hydroelectric power station which was commissioned in 1930. Of the nine dams on the Shō River it is the second-furthest downstream.

Senzoku Dam

The Senzoku Dam is a gravity dam on the Togagawa River about 20 km (12 mi) south of Shogawa in Toyama Prefecture, Japan. It was completed in 1974. The dam sends water to the 32.7 MW Togagawa II hydroelectric power station 5.7 km (3.5 mi) to the west on the Shō River. It was commissioned in 1973.

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References

  1. "Kansai Electric Power Omaki power plant" (in Japanese). Suiryoku. Retrieved 15 July 2013.