Sakamoto Dam

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Dam in Gunma Prefecture, Japan.
36°21′12″N 138°42′27.3″E / 36.35333°N 138.707583°E / 36.35333; 138.707583Construction began1985Opening date1994; 30 years ago (1994)Dam and spillwaysType of damGravityImpoundsUsui RiverHeight36.3 m (119 ft)Length85 m (279 ft)ReservoirCreatesLake UsuiTotal capacity778,000 m3 (27,500,000 cu ft)Catchment area13.7 km2 (5.3 sq mi)Surface area7 hectares (17 acres)

Sakamoto Dam is a dam in the Gunma Prefecture of Japan. It forms Lake Usui.

Lake Usui
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