Yoichi Dam

Yoichi Dam
Yoichi Dam Location within Japan
Location	Hokkaido Prefecture, Japan
Coordinates	43°9′17″N 140°41′01″E
Construction began	1971
Opening date	1987
Dam and spillways
Height	36.8 m (121 ft)
Length	220 m (720 ft)
Reservoir
Total capacity	800,000 m3 (28,000,000 cu ft)
Catchment area	9.6 km2 (3.7 sq mi)
Surface area	8 hectares (20 acres)

Yoichi Dam (Japanese: 余市ダム) is a rockfill dam located in Hokkaido Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 9.6 km². The dam impounds about 8 ha of land when full and can store 800 thousand cubic meters of water. The construction of the dam was started on 1971 and completed in 1987.