当麻町, Italy
Ozawa Dam (Japanese: 小沢ダム) is a rockfill dam located in Hokkaido Prefecture in Japan. The dam is used for flood control. The catchment area of the dam is 12.2 km2. The dam impounds about 12 ha of land when full and can store 740 thousand cubic meters of water. The construction of the dam was started
on 1973 and completed in 1994.
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