Onjuku Dam is an earthfill dam located in Chiba Prefecture in Japan. The dam is used for water supply. The catchment area of the dam is 0.6 km². The dam impounds about 12 ha of land when full and can store 610 thousand cubic meters of water. The construction of the dam was started on 1970 and completed in 1977.[1]

Onjuku Dam
Location of Onjuku Dam in Japan
Location	Chiba Prefecture, Japan
Coordinates	35°11′44″N 140°18′38″E
Construction began	1970
Opening date	1977
Dam and spillways
Height	23.5m
Length	151m
Reservoir
Total capacity	610 thousand cubic meters
Catchment area	0.6 sq. km
Surface area	12 hectares

References

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