Nuppanosawa Dam

Nuppanosawa Dam
Nuppanosawa Dam Location within Japan
Location	Hokkaido Prefecture, Japan
Coordinates	43°15′48″N 141°53′13″E
Construction began	1931
Opening date	1933
Dam and spillways
Height	22.7 m (74 ft)
Length	190 m (620 ft)
Reservoir
Total capacity	300,000 m3 (11,000,000 cu ft)
Catchment area	4.5 km2 (1.7 sq mi)
Surface area	5 hectares (12 acres)

Nuppanosawa Dam (Japanese: 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.