Shimohara Dam

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Dam in Gufu, Japan.

35°42′25″N 137°10′57″E / 35.70694°N 137.18250°E / 35.70694; 137.18250Construction began1933Opening date1938Dam and spillwaysImpoundsHida RiverHeight23 metersLength102.5 metersReservoirTotal capacity2,936,000 m³Catchment area1,147.0 km²Surface area35 hectaresPower StationInstalled capacity22.0 MW

Shimohara Dam (下原ダム, Shimohara damu) is a dam in the city of Gero, Gifu Prefecture, Japan on the middle reaches of the Hida River, which is part of the Kiso River system. The dam is a concrete gravity dam with a height of 23.0 meters. It was completed in 1938 by the Toho Electric Power Company as part of the pre-war Hida River Development Project and was taken over by the Chubu Electric Power Company from 1951. The dam was constructed exclusively for hydroelectric power generation and generates a maximum of 22,000 kilowatts at the Shimohara Power Station downstream of the dam. The dam is located with the borders of the Hida-Kisogawa Quasi-National Park.