Tominaga Dam (富永ダム) is a dam in the city of Toyota in the Aichi Prefecture of Japan. It is a concrete Gravity dam that stands at a height of approximately 107 feet (32.5 meters) and generates power for Chubu Electric Power.

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Tominaga Dam
Location	Toyone, Aichi Prefecture, Japan.
Coordinates	35°11′59″N 137°27′31″E
Construction began	1973
Opening date	1980
Dam and spillways
Height	32.5 m
Length	337 m
Reservoir
Total capacity	1,051,000 m³
Catchment area	0.43 km²
Surface area	11 hectares

History

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After the Second World War, Chubu Electric Power, which had been expanding its power supply facilities, made plans to construct their fourth large-scale pumped-storage hydroelectric plant in the Yahagi River system following the Hatanagi, Takane, and Mazegawa dams.

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