Nabara Dam

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Nabara Dam
Interactive map of Nabara Dam
Location	Hiroshima Prefecture, Japan.
Construction began	1971
Opening date	1976
Dam and spillways
Impounds	Nabara River
Height	85.5 m
Length	305 m
Reservoir
Total capacity	5,568,000 m3
Catchment area	12.0 km2
Surface area	24 hectares

Nabara Dam is a rockfill dam on the Nabara River (also known as Nanbara River) in Hiroshima Prefecture, Japan. It impounds a reservoir that supplies the Nabara pumped-storage hydroelectric power station operated by Chugoku Electric Power Company.

History

Construction began in 1971 and the dam was completed in 1976, coinciding with the start of commercial operations at the associated power station.

Design and specifications

The structure has a height of 85.5 meters and a crest length of 305 meters. The reservoir has a surface area of 24 hectares and total storage capacity of 5,568,000 cubic meters, with a catchment area of 12 square kilometers.

Power generation

The Nabara Power Station is a pumped-storage facility with an installed capacity of 620 MW, provided by two reversible Francis pump turbines each rated at 310 MW.

References

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