Koyadaira Dam is a gravity dam located in Toyama prefecture in Japan. The dam is used for power production. The catchment area of the dam is 404.8 km². The dam impounds about 10 ha of land when full and can store 2122 thousand cubic meters of water. The construction of the dam was started on 1933 and completed in 1936.[1]

Koyadaira Dam
Location of Koyadaira Dam in Japan
Location	Toyama Prefecture, Japan
Coordinates	36°42′36″N 137°38′53″E
Construction began	1933
Opening date	1936
Dam and spillways
Height	54.5m
Length	119.7m
Reservoir
Total capacity	2122 thousand cubic meters
Catchment area	404.8 sq. km
Surface area	10 hectares

References

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