Kōsaka Dam : Wikipedia, the free encyclopedia

Kōsaka Dam

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Dam in Saku, Nagano

36°15′54″N 138°32′55″E / 36.26500°N 138.54861°E / 36.26500; 138.54861PurposeFlood controlStatusOperationalConstruction began1969 (1969)Opening date1972 (1972)Construction cost1,222,000,000 JPYDam and spillwaysType of damEmbankment damImpoundsKosaka riverHeight (thalweg)38.5 mLength184.0 mDam volume334,000 m³ReservoirCreatesLake Kōsaka DamTotal capacity1,050,000 m³Active capacity870,000 m³Catchment area14 km²Surface area11 ha

Kosaka Dam (Japanese: 香坂ダム) is an embankment dam on the Kosaka river in the Saku, Nagano, Japan, completed in 1972.^[1] The primary purpose is flood control, because villages in the Kosaka River basin suffered heavy damage from the floods.