Pit 5 Dam

Pit 5 Dam
Pit 5 Dam is located in California
Pit 5 Dam
Pit 5 Dam
Location of Pit 5 Dam in California
CountryUnited States
LocationShasta County, California
Coordinates40°59′30″N 121°52′16″W / 40.99167°N 121.87111°W / 40.99167; -121.87111[1]
PurposeHydroelectric
Opening date1944
OwnerPG&E
Dam and spillways
ImpoundsPit River
Height (foundation)58 ft (18 m)[2]
Length340 ft (100 m)[2]
Reservoir
CreatesPit 5 Reservoir
Total capacity330 acre⋅ft (410,000 m3)[2]
Pit 5 Powerhouse
Installed capacity160 MW[3]
Annual generation781,328,000 KWh (2001–2012)[3]

Pit 5 Dam is a run-of-the-river hydroelectric dam on the Pit River in Shasta County, northeastern California, about 2 miles (3.2 km) south of Big Bend. It is part of the Pit 3-4-5 hydroelectric project owned by Pacific Gas & Electric Company.[4]

Specifications

The concrete gravity diversion dam is 58 feet (18 m) high and 340 feet (100 m) long.[2] It has a gated spillway controlled by four 50 ft × 26.3 ft (15.2 m × 8.0 m) steel wheel gates, and a 30 in (76 cm) diameter river outlet for regular releases. An intake structure diverts water into a 5,109-foot (1,557 m) long penstock to the Pit 5 Tunnel forebay reservoir, from which a second 23,149-foot (7,056 m) tunnel connects to the Pit 5 power station. There are four 40 MW generating units, each fed by a 1,380-foot (420 m)-long penstock.[5]

History

The dam and power station were authorized in 1942 and constructed as a wartime project, and the first power was generated on April 29, 1944.[6] Construction of the dam and power station dewatered a stretch of the Pit River known as the "Big Bend". When the projects were relicensed in 2007, a minimum 250 cu ft/s (7.1 m3/s) release[5] into the river was established, to provide recreation benefits such as boating and fishing, and to improve riparian habitat.[7]

See also

References

  1. ^ "Pit Number 5 Diversion 97-107 Dam". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 1994-07-01. Retrieved 2018-04-28.
  2. ^ a b c d "Dam Name: Pit No. 5 Diversion". National Performance of Dams Program. Stanford University. Retrieved 2018-04-28.
  3. ^ a b "California Hydroelectric Statistics & Data". California Energy Commission. Archived from the original on 2018-02-26. Retrieved 2018-04-26.
  4. ^ "Pit 3, 4, & 5 : P-233". Hydropower Reform Coalition. Retrieved 2018-04-28.
  5. ^ a b "Draft Environmental Impact Statement for Hydropower License: Pit 3, 4, 5 Hydroelectric Project". Federal Energy Regulatory Commission. Mar 2003. Retrieved 2018-04-28.
  6. ^ "Pit 5 Powerhouse" (pdf). US Spec. Retrieved 2018-04-28.
  7. ^ "Pit 1, and Pit 3, 4, and 5 Projects" (PDF). Hydropower Reform Coalition. 2009. Archived from the original (PDF) on 2017-05-25. Retrieved 2018-04-28.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.