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.

Hisayoshi Dam
Official name久吉ダム
CountryJapan
LocationHirakawa, Aomori Japan
Coordinates40°26′33″N 140°41′31″E / 40.44250°N 140.69194°E / 40.44250; 140.69194
PurposeFNW
StatusOperational
Construction began1980
Opening date1995
Built byObayashi Corporation
Operator(s)Aomori Prefecture
Dam and spillways
Type of damGravity dam
ImpoundsHirakawa River
Height57 meters
Length317 meters
Reservoir
CreatesLake Omokage
Total capacity6,730,000 m³
Active capacity6,070,000 m³
Catchment area21.8 km²
Surface area41 hectares

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.

edit

  Media related to Hisayoshi Dam at Wikimedia Commons