Aha Dam (Japanese:アハダム)is a concrete gravity dam located in Okinawa prefecture of Japan. The dam is used to collect drinking water for water supply, irrigation and flood control. The catchment area of the dam is 39.5 km². The dam impounds about 83 ha of land when full and can store 18.6 million cubic meters of water. The construction of the dam started on 1971 and completed in 1982.[1]

Aha Dam
Location	Okinawa Prefecture, Japan
Coordinates	26°42′38″N 128°16′09″E
Construction began	1971
Opening date	1982
Dam and spillways
Height	86 m
Length	245 m
Reservoir
Total capacity	18.6 million m³
Catchment area	2 km²
Surface area	83 hectares

References

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