Isawa Dam

Isawa Dam
Location of Isawa Dam in Japan
Location Iwate Prefecture, Japan
Coordinates 39°06′48.0″N 140°54′13.0″E / 39.113333°N 140.903611°E / 39.113333; 140.903611Coordinates: 39°06′48.0″N 140°54′13.0″E / 39.113333°N 140.903611°E / 39.113333; 140.903611
Purpose Flood control, power, irrigation
Construction began 1983
Opening date 2013
Dam and spillways
Type of dam Embankment, rock-fill
Impounds Isawa River
Height 132 m (433 ft)
Length 723 m (2,372 ft)
Dam volume 13,500,000 m3 (17,700,000 cu yd)
Reservoir
Total capacity 143,000,000 m3 (116,000 acre⋅ft)
Active capacity 132,000,000 m3 (107,000 acre⋅ft)
Catchment area 185 km2 (71 sq mi)
Surface area 440 ha (1,100 acres)
Power Station
Commission date 2014
Hydraulic head 100.7–105.2 m (330–345 ft) (effective)
Turbines 1 × 10.7 MW, 1 × 3.5 MW, 1 × 1.5 MW Francis-type
Installed capacity 15.7 MW[1]

Isawa Dam (胆沢ダム) is an embankment dam on the Isawa River in Iwate Prefecture, Japan.[2] It was constructed between 1983 and 2013. Its reservoir, which submerged the smaller Ishibuchi Dam upstream, was full in May 2013.[3] The dam's 15.7 MW power station was expected to be operational in July 2014.[1]

References

  1. 1 2 "Isawa first power plant Isawa third power plant" (in Japanese). J-Power. Archived from the original on 20 June 2012. Retrieved 6 June 2013.
  2. ↑ "Hydropower & Dams in South and East Asia" (PDF). Hydropower and Dams. p. 10. Retrieved 3 October 2010.
  3. ↑ "Isawa Dam surcharge water level reached!" (in Japanese). Back King. Retrieved 6 June 2013.


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