Английская Википедия:Delta Cross Channel
The Delta Cross Channel is a facility in California's Sacramento-San Joaquin Delta that diverts water from the Sacramento River. The facility was built in 1951 in Walnut Grove, California.
It diverts water to Snodgrass Slough, from where it flows to the Mokelumne River,[1] then to the San Joaquin River, towards the C.W. Bill Jones Pumping Plant,[2] which is the intake for the Delta-Mendota Canal, part of the Central Valley Project.[3] The distance from the channel to the Jones Pumping Plant is about Шаблон:Convert.[2]
Operation
The diversion is controlled by two sluice gates that each measure Шаблон:Convert by Шаблон:Convert and weigh 243 tons and extend Шаблон:Convert across the channel. The channel is Шаблон:Convert long, has a bottom width of Шаблон:Convert, and was designed to divert a capacity of Шаблон:Convert of water per second[4] under normal conditions, but can divert up to Шаблон:Convert if required.[1] The facility was built to augment the flow of the Sacramento River through the Delta to the Jones Pumping Plant.[5] It ensures an adequate supply of water for the Jones Pumping Plant and irrigation supplies for the Sacramento-San Joaquin Delta while controlling ocean salinity.
The gates close when the river floods, specifically when the flow on the Sacramento River reaches Шаблон:Convert per second,[6] to prevent flooding on the San Joaquin River, and if the amount of water is so low that the Central Valley Project cannot deliver water. The gates also close during the winter to protect the fisheries in the Delta,[6] specifically the salmon fishery.[5] The winter closure of the facility was requested by a consortium of wildlife protection agencies, including the U.S. Fish and Wildlife Service, the National Oceanic and Atmospheric Administration, and the California Department of Fish and Wildlife.[4] The gates are generally open during the summer months.[6]
References
Шаблон:Central Valley Project infrastructure Шаблон:Sacramento–San Joaquin Delta
- Английская Википедия
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- Agriculture in California
- Aqueducts in California
- Irrigation in the United States
- San Joaquin Valley
- Sacramento River
- Transportation buildings and structures in Sacramento County, California
- Sacramento–San Joaquin River Delta
- United States Bureau of Reclamation
- Central Valley Project
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