Hisayoshi Dam

Dam in Hirakawa, Aomori Japan
40°26′33″N 140°41′31″E / 40.44250°N 140.69194°E / 40.44250; 140.69194PurposeFNWStatusOperationalConstruction began1980Opening date1995Built byObayashi CorporationOperator(s)Aomori PrefectureDam and spillwaysType of damGravity damImpoundsHirakawa RiverHeight57 metersLength317 metersReservoirCreatesLake OmokageTotal capacity6,730,000 m³Active capacity6,070,000 m³Catchment area21.8 km²Surface area41 hectares

The Hisayoshi Dam (久吉ダム, Hisayoshi damu) is a dam located in the city of Hirakawa, Aomori Prefecture in the Tohoku region of Japan.

The dam is a concrete gravity dam across the Hirakawa River, a tributary of the Iwaki River. Construction on the dam was begun in 1980 by a consortium led by the Obayashi Corporation, and the dams as completed in 1995. across the Kodomari River. It is a multipurpose dam to provide water for irrigation, flood control and drinking water.

Media related to Hisayoshi Dam at Wikimedia Commons

  • Official home page
  • Ministry of Land, Infrastructure, Transport and Tourism


  • v
  • t
  • e