Английская Википедия:Cogswell Dam

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Cogswell Dam is a rockfill dam on the West Fork of the San Gabriel River in Los Angeles County, California. It is located in the San Gabriel Mountains, northeast of Mount Wilson, and within the Angeles National Forest.

It forms Cogswell Reservoir, which has a capacity of Шаблон:Convert.[1]

The dam serves mainly for flood control in conjunction with San Gabriel Dam and Morris Dam downstream. San Gabriel Dam lies Шаблон:Convert downstream.[2]

Construction

Bonds for the dam's construction were issued in 1924. Construction began in March 1932 and was completed in April 1934, at a total cost of US$3,127,762.[2]

The rock-fill dam, built by the Los Angeles County Flood Control District, is Шаблон:Convert long, Шаблон:Convert tall (measured from the stream bed), Шаблон:Convert wide at the top, and contains Шаблон:Convert of material. Its crest is Шаблон:Convert above sea level and Шаблон:Convert above the certified water storage elevation.[1]

The dam rests on crystalline granite bedrock. The buttress is Шаблон:Convert thick at the base, and the height from foundation to crest is Шаблон:Convert. There are concrete cutoff walls and a concrete facing slab on the dam's upstream side.[2]

See also

References

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Шаблон:LA County dams


Шаблон:LosAngeles-struct-stub