Italy
Ohsawa Dam (Japanese: 大沢ダム) is a rockfill dam located in Tōma, Hokkaido Prefecture in Japan. The dam is used for flood control. The catchment area of the dam is 14.8 km2. The dam impounds about 11 ha of land when full and can store 900 thousand cubic meters of water. The construction of the dam was
started on 1974 and completed in 2002.
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