Ohsako Dam is a concrete arch dam located in Nara prefecture in Japan. The dam is used for agriculture, waters supply and power production. The catchment area of the dam is 114.8 km2. The dam impounds about 107 ha of land when full and can store 27750 thousand cubic meters of water. The construction of the dam was started in 1954 and completed in 1973.[1][2]

Ohsako Dam
LocationNara Prefecture, Japan
Coordinates34°16′26″N 136°0′45″E / 34.27389°N 136.01250°E / 34.27389; 136.01250
Construction began1954
Opening date1973
Dam and spillways
Height70.5m
Length222.3m
Reservoir
Total capacity27750 thousand cubic meters
Catchment area114.8 sq. km
Surface area107 hectares

References

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  1. ^ "Ohsako Dam - Dams in Japan". Retrieved 2022-02-22.
  2. ^ Nakanishi, N (1999). "An analysis of the flood mitigation function of a reservoir for irrigation purpose-the cases of the release from Ohsako Dam during floods". Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering. 67 (4): 533–539.