San Diego Aqueduct
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The San Diego Aqueduct is a system of four aqueducts in the U.S. state of California, supplying about 70 percent of the water supply for the city of San Diego.[1] The system comprises the First and Second San Diego Aqueducts, carrying water from the Colorado River west to reservoirs on the outskirts of San Diego. The Script error: No such module "convert". First Aqueduct consists of pipelines 1 and 2, which run from the Colorado River Aqueduct near San Jacinto, California, to San Vicente Reservoir, approximately Script error: No such module "convert". northeast of the city. Pipelines 3 and 4 make up the Script error: No such module "convert". Second Aqueduct. Together, these four pipelines have a capacity of Script error: No such module "convert".. The smaller, Script error: No such module "convert". Fallbrook-Ocean Branch branches from the First Aqueduct into Murray Reservoir. The La Mesa-Sweetwater Branch originates from the First Aqueduct, flowing into Sweetwater Reservoir.[2]
Construction
The First Aqueduct was designed by the Bureau of Reclamation and constructed from 1945 to 1947 by the Navy Department. Pipeline 2, of the First Aqueduct, was built by the Bureau of Reclamation from 1952 and 1957, roughly paralleling Pipeline 1. In 1957, the construction of Pipeline 3 of the Second Aqueduct was begun by the Metropolitan Water District (MWD), completing it in May 1960. In 1968, the construction of Pipeline 4, of the Second Aqueduct, began. Pipeline 4 was completed in 1971. In 2005, the San Diego County Water Authority began construction on the Script error: No such module "convert"., Script error: No such module "convert". San Vicente Pipeline, connecting San Vicente Reservoir to the Second Aqueduct. Construction on the project was completed in 2010.[3]
First Aqueduct
The First Aqueduct, built of two parallel precast concrete pipes, ranging in diameter from Script error: No such module "convert"., branches from the Colorado River Aqueduct in San Jacinto, California, just north of the San Jacinto River, continuing Script error: No such module "convert". south to its terminus at San Vicente Reservoir.[4] There are seven tunnels on the First Aqueduct, which range in length from Script error: No such module "convert".. The total capacity of the First Aqueduct is Script error: No such module "convert"..[2]
Second Aqueduct
The Second Aqueduct is Script error: No such module "convert". long, beginning at the Colorado River Aqueduct, flowing into Lake Skinner and then into Lower Otay Reservoir near San Diego. In the first Script error: No such module "convert". from the Colorado River Aqueduct to Lake Skinner, Pipeline 3 consists of an open canal handling approximately Script error: No such module "convert".. The remaining Script error: No such module "convert". consist of pre-stressed Script error: No such module "convert". diameter[4] concrete pipe and steel pipe. Pipeline 4 consists of pre-stressed concrete pipe with a capacity of Script error: No such module "convert"..[2]
References
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External links
- Metropolitan Water District of Southern California official website
- Aquafornia California Water News Blog
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