Isawa Dam

Isawa Dam
Location of Isawa Dam in Japan
Location Iwate Prefecture, Japan
Coordinates 39°07′17.37″N 140°44′11.40″E / 39.1214917°N 140.7365000°E / 39.1214917; 140.7365000Coordinates: 39°07′17.37″N 140°44′11.40″E / 39.1214917°N 140.7365000°E / 39.1214917; 140.7365000
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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