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 (33 meters) and generates power for Chubu Electric Power.

Tominaga Dam
LocationToyone, Aichi Prefecture, Japan.
Coordinates35°11′59″N 137°27′31″E / 35.19972°N 137.45861°E / 35.19972; 137.45861
Construction began1973
Opening date1980
Dam and spillways
Height32.5 m
Length337 m
Reservoir
Total capacity1,051,000 m3
Catchment area0.43 km2
Surface area11 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.