Koyamagasawa Tameike is an earthfill dam located in Yamagata Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is km². The dam impounds about 5 ha of land when full and can store 325 thousand cubic meters of water. The construction of the dam was completed in 2000.[1]

Koyamagasawa Tameike
Location of Koyamagasawa Tameike in Japan
Location	Yamagata Prefecture, Japan
Coordinates	38°33′37″N 140°21′10″E
Opening date	2000
Dam and spillways
Height	17.5m
Length	157.3m
Reservoir
Total capacity	325 thousand cubic meters
Catchment area	sq. km
Surface area	5 hectares

References

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