Nishioka Dam

Nishioka Dam
Nishioka Dam Location within Japan
Location	Hokkaido Prefecture, Japan
Coordinates	44°4′03″N 142°17′53″E
Construction began	1993
Opening date	2009
Dam and spillways
Height	31 m (102 ft)
Length	247 m (810 ft)
Reservoir
Total capacity	844,000 m3 (29,800,000 cu ft)
Catchment area	4.5 km2 (1.7 sq mi)
Surface area	9 hectares (22 acres)

Nishioka Dam (Japanese: 西岡ダム) is a rockfill dam located in Hokkaido Prefecture in Japan. The dam is used for flood control and water supply. The catchment area of the dam is 4.5 km². The dam impounds about 9 ha of land when full and can store 844 thousand cubic meters of water. The construction of the dam was started on 1993 and completed in 2009.