Hatanagi-I Dam
| Hatanagi-I Hydroelectric Dam | |
|---|---|
 | |
| Official name | 畑薙第一ダム |
| Location | Shizuoka Prefecture, Japan |
| Coordinates | 35°19′17″N 138°10′59″E / 35.32139°N 138.18306°E |
| Construction began | 1957 |
| Opening date | 1961 |
| Operator(s) | Chubu Electric Power |
| Dam and spillways | |
| Impounds | Ōi River |
| Height | 125 m (410 ft) |
| Length | 275 m (902 ft) |
| Reservoir | |
| Creates | Lake Hatanagi |
| Total capacity | 107,400,000 m3 (3.79×109 cu ft) |
| Catchment area | 318 km2 (123 sq mi) |
| Surface area | 251 ha (620 acres) |
The Hatanagi-I (畑薙第一ダム, Hatanagi dai-ichi damu) is a
hydroelectric power station.[1]
History
The potential of the Ōi River valley for hydroelectric power development was realized by the
Ōigawa Railway Ikawa Line was expanded to facilitate dam construction, and the newly created Chubu Electric Power Company received a loan from the United Nations
Bank for Reconstruction and Development on September 10, 1958 to fund the project. Construction was completed by December 1961, and the system came into operation in early 1962.
Design
The Hatanagi Project was designed as a
Hatanagi No.2 Dam
downstream. The reversible turbine generators at the Hatanagi No.1 power plant were designed to function as either electrical power generators, or as pumps, to reverse the flow of water back to the reservoir in times of low demand. The generators have a capacity of 137 megawatts (184,000 hp), and a maximum flow rate of 137 m3/s.
The lake created by the dam Hatanagi (畑薙湖, Hatanagi-ko) serves as an important source of tap water, industrial water and irrigation water in Shizuoka Prefecture.
Surroundings
The Hatanagi-I is located in the Minami Alps National Park, an area of high mountains, forests, and a popular vacation area. Public access to the dam and its lake are by Shizuoka Prefectural Road 60, with bus connections to Ikawa Station or directly with Shizuoka Station or Shin-Shizuoka Station.
See also
Wikimedia Commons has media related to Hatanagi Dam.
- Hatanagi-II Hydroelectric Dam
- List of power stations in Japan
Notes
- ^ "Hydropower & Dams in South and East Asia" (PDF). Hydropower and Dams. p. 9. Archived from the original (PDF) on 2 September 2017. Retrieved 3 October 2010.
References
- Japan Commission on Large Dams. Dams in Japan:Past, Present and Future. CRC Press (2009). ISBN 978-0-415-49432-8