The Ōi Dam (大井ダム, Ōi Damu) is a dam located between the cities of Ena and Nakatsugawa in Gifu Prefecture, Japan. It was built to produce electricity for the surrounding area. The Agi River flows through the dam.
Built in 1924, the Ōi Dam was the first dam built anywhere on the Kiso River system. It is also the first hydroelectric dam built in Japan. At 53.4 m (175.2 ft) tall, it is the largest gravity dam in Japan after the Taishakugawa Dam in Hiroshima Prefecture. In 1983, the New Ōi Dam (新大井ダム Shin-Ōi Damu) was built just downstream. Combined, they produce 80,000 kW of power.
The upper portions of the Kiso River have a strong flow in terms of speed and volume, making it an ideal location for hydroelectric dams. Interest in hydroelectric dams in Japan grew greatly in 1911 when a hydroelectric law was passed. Given the technologies of the time, though, building a dam along the Kiso River was too difficult because floods often occurred.
Surrounding areaedit
The reservoir created by the dam was named Ena Gorge. More than 10 km (6 mi), the gorge is lined by rocky walls on both sides. Along with the lake created by the Maruyama Dam downstream, the area has been designated the Hida-Kisogawa Quasi-National Park.
大井ダム, located, between, cities, nakatsugawa, gifu, prefecture, japan, built, produce, electricity, surrounding, area, river, flows, through, official, name大井ダムlocationgifu, prefecture, japan, construction, began1922opening, date1924owner, kansai, electric, pow. The Ōi Dam 大井ダム Ōi Damu is a dam located between the cities of Ena and Nakatsugawa in Gifu Prefecture Japan It was built to produce electricity for the surrounding area The Agi River flows through the dam Ōi DamOfficial name大井ダムLocationGifu Prefecture Japan Construction began1922Opening date1924Owner s Kansai Electric Power CompanyDam and spillwaysType of damGravity damImpoundsAgi RiverHeight53 4 mLength275 8 mReservoirCreatesEna GorgeTotal capacity29 400 000 m Catchment area2 083 0 km Surface area141 hectaresBuilt in 1924 the Ōi Dam was the first dam built anywhere on the Kiso River system It is also the first hydroelectric dam built in Japan At 53 4 m 175 2 ft tall it is the largest gravity dam in Japan after the Taishakugawa Dam in Hiroshima Prefecture In 1983 the New Ōi Dam 新大井ダム Shin Ōi Damu was built just downstream Combined they produce 80 000 kW of power Contents 1 History 2 Surrounding area 3 References 4 External linksHistory editThe upper portions of the Kiso River have a strong flow in terms of speed and volume making it an ideal location for hydroelectric dams Interest in hydroelectric dams in Japan grew greatly in 1911 when a hydroelectric law was passed Given the technologies of the time though building a dam along the Kiso River was too difficult because floods often occurred Surrounding area editThe reservoir created by the dam was named Ena Gorge More than 10 km 6 mi the gorge is lined by rocky walls on both sides Along with the lake created by the Maruyama Dam downstream the area has been designated the Hida Kisogawa Quasi National Park nbsp Ōi DamReferences editExternal links edit nbsp Wikimedia Commons has media related to Oi Dam 35 28 53 N 137 23 46 E 35 481361 N 137 396194 E 35 481361 137 396194 Retrieved from https en wikipedia org w index php title Ōi Dam amp oldid 1188663044, wikipedia, wiki, book, books, library,
