Ueno Dam

Ueno Dam (上野ダム) is a concrete gravity dam in the Gunma Prefecture of Japan. The dam serves as the lower reservoir of the Kannagawa Hydropower Plant.

Lake Okukanna

Ueno Dam
LocationUeno, Gunma, Japan
Coordinates36.05173°N 138.705056°E / 36.05173; 138.705056
Construction began1997
Opening date2004
Dam and spillways
ImpoundsKanna River
Height120 m
Length350 m
Reservoir
Total capacity18,400,000 m³
Catchment area31.2 km²
Surface area56 hectares


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