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The Mulholland Dam is a Los Angeles Department of Water and Power dam located in the Hollywood Hills of Los Angeles, California, east of the Hollywood Freeway.Designed with a storage capacity of 7,900 acre⋅ft (9,700,000 m 3) of water at a maximum depth of 183 feet (56 m), the dam forms the Hollywood Reservoir, which collects water from various aqueducts and impounds the creek of Weid Canyon.
William Mulholland Memorial Fountain in the Los Feliz neighborhood of Los Angeles, on the site where Mulholland once lived [27] Mulholland, who was self-taught, became the first American civil engineer to use hydraulic sluicing to build a dam while constructing the Silver Lake Reservoir in 1906.
The design of the St. Francis Dam was in fact an adaptation of the Mulholland Dam, with modifications made so as to suit the site. Most of the design profiles and computation figures of stress factors for the St. Francis Dam came from this adaptation of the plans and formulas which had been used in the constructing of the Mulholland Dam.
The reservoir was created by the Mulholland Dam (built in 1924), designed by the Los Angeles Department of Water and Power—then named the Bureau of Water Works and Supply—as part of the city's water storage and supply system. [2] [3] The Hollywood Reservoir has appeared in films such as Earthquake (1974).
[11]: 151–153 Mulholland's granddaughter has stated that the complexity of the project was comparable to the building of the Panama Canal. [20] Water from the Owens River reached a reservoir in the San Fernando Valley on November 5, 1913. [11] At a ceremony that day, Mulholland spoke his famous words about this engineering feat: "There it is.
The resulting investigation and trial led to the retirement of William Mulholland as the head of the Los Angeles Bureau of Water Works and Supply in 1929. The dam failure is the worst man-made flood disaster in the US in the 20th century and the second largest single-event loss of life in California history after the 1906 San Francisco earthquake.
William Mulholland refused to authorize the purchase and explored other areas to build the reservoir. Eventually he settled on an area which he had considered for a potential dam site during the process of designing and building the Los Angeles Aqueduct , a section of San Francisquito Canyon located north of the present day Santa Clarita Valley ...
As the Los Angeles metropolitan area grew in the early 1900s, Mulholland and others began looking for new sources of water. Eventually, Los Angeles laid claim to the waters of the Owens Valley, east of the Sierra Nevada, and in 1913 completed the 240-mile (390 km) Los Angeles Aqueduct to deliver its waters to the burgeoning city.