Shasta dam
Shasta dam | |||||||||
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The Shasta Dam with Shasta Lake and Mt. Shasta in the background | |||||||||
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Coordinates | 40 ° 43 ′ 0 ″ N , 122 ° 27 ′ 0 ″ W | ||||||||
Data on the structure | |||||||||
Construction time: | 1938-1945 | ||||||||
Height above foundation level : | 183 m | ||||||||
Building volume: | 4 million m³ | ||||||||
Crown length: | 1 055 m | ||||||||
Power plant output: | 610 MW | ||||||||
Data on the reservoir | |||||||||
Water surface | 119 km² | ||||||||
Reservoir length | 56 km | ||||||||
Maximum depth | 159.3 m | ||||||||
Storage space | 5612 million m³ |
The Shasta Dam ( English Shasta Dam ) stands on the Sacramento River in Shasta Lake near Redding in the US state of California . It was built between 1938 and 1945 as part of a job creation scheme by the Works Progress Administration . The reservoir is known as Shasta Lake like the place . The area is a popular recreational area.
use
The Shasta Dam is part of the "Shasta and Trinity River Division" of the Central Valley Project of 1933, which started in 1935 with funds from the "Emergency Relief Appropriation Act". The Shasta and Trinity Division was authorized in August 1955. The location of the dam was chosen by the State of California. California could not finance the project on its own and sought help from the American government.
The purpose of the "Central Valley Project" is water supply and flood protection; The Shasta Dam also serves both purposes. The reservoir is also used for irrigation, hydropower generation, recreation and increasing water quality.
Barrier structure
The barrier structure is a curved concrete gravity dam . The dam is 183 meters high and 1055 meters long, has a base width of 165.5 meters and a structure volume of 4 million m³.
Hydroelectric power plant
There is a hydroelectric power station at the foot of the dam . It has a hydraulic head of 100 meters and its five Francis turbines have a combined output of 610 MW. It is the fourth largest hydropower plant in California and the largest that is not a pumped storage plant . The water flows through five pipes with a diameter of 4.5 meters. At full power, 85 m³ of water flow through it per second. The electricity is generated at a voltage of 13,800 volts and transformed to 230,000 volts for transmission to consumers in California.
increase
In September 2004 a law was introduced according to which an increase in the dam wall should be investigated. Proponents believe that there is an urgent need for water. Opponents such as the Winnemem-Wintu Indian tribe consider this to be a dangerous plan for the environment and think that measures to save water should be explored more sensibly.
Recordings
See also
- List of the largest dams on earth
- List of the largest reservoirs on earth
- List of the largest hydroelectric plants in the world
- List of dams in the world
Web links
- Shasta Dam, ( May 13, 2009 memento on the Internet Archive ) Bureau of Reclamation, US Dept. of the Interior
- Shasta Dam inthe United States Geological Survey's Geographic Names Information System
- Shasta Lake inthe United States Geological Survey's Geographic Names Information System
- Shasta Dam Virtual tour
- The Winnemem Wintu - Waging War on Shasta Dam ( Memento from September 30, 2006 in the Internet Archive )