Nuppanosawa Dam

Nuppanosawa Dam (ヌッパの沢ダム) is an earthfill dam located in Hokkaido Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 4.5 km2. The dam impounds about 5 ha of land when full and can store 300 thousand cubic meters of water. The construction of the dam was started on 1931 and completed in 1933.