Arasawa No. 1 Dam
Location of Arasawa No. 1 Dam in Japan
Official name	荒沢１号ダム
Location	Iwate Prefecture, Japan
Coordinates	40°0′53″N 140°56′03″E / 40.01472°N 140.93417°E / 40.01472; 140.93417
Opening date	1972
Dam and spillways
Height	38m
Length	157.7m
Reservoir
Total capacity	2139 thousand cubic meters
Catchment area	19 sq. km
Surface area	16 hectares

Arasawa No. 1 Dam (Japanese: 荒沢１号ダム) is a rockfill dam located in Iwate Prefecture in Japan. The dam is used for flood control. The catchment area of the dam is 19 km². The dam impounds about 16 ha of land when full and can store 2139 thousand cubic meters of water. The construction of the dam was completed in 1972.^[1]

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