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A cross section view of the St Francis Dam after collapse Another view of the St Francis Dam after collapse. In the early years of Los Angeles, the city's water supply was obtained from the Los Angeles River. This was accomplished by diverting water from the river through a series of ditches called zanjas. At that time, a private water company ...
The builder of the Baldwin Hills dam, the Los Angeles Department of Water and Power, was aware of the difficult geologic conditions presented by the site and knew from past experiences, notably the catastrophic failure of the St. Francis Dam in 1928 in which over 400 people lost their lives, [9] [10] the serious consequences of a failure, even ...
The failure and near complete collapse of the St. Francis Dam took place in the middle of the night on March 12, 1928. The dam was holding a full reservoir of 12.4 billion gallons (47 billion liters) of water that surged down San Francisquito Canyon and emptied into the Santa Clara River, flowing down the river valley to the ocean.
The failure and near complete collapse of the St. Francis Dam took place in the middle of the night on March 12, 1928. The dam was holding a full reservoir of 12.4 × 10 9 US gal (4.7 × 10 10 L) of water that surged down San Francisquito Canyon and emptied into the river.
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William Mulholland (September 11, 1855 – July 22, 1935) was an Irish American self-taught civil engineer who was responsible for building the infrastructure to provide a water supply that allowed Los Angeles to grow into the largest city in California.
Around midnight on March 12, 1928, the 195 foot St. Francis Dam in the San Francisquito Canyon above what is now the city of Santa Clarita in California failed catastrophically. At least 431 people were killed as the 47,000,000 m 3 reservoir emptied into the Pacific Ocean near Oxnard, nearly 50 miles away. [ 34 ]
Within days after the collapse of the St. Francis Dam in March 1928, William Mulholland ordered the Hollywood Reservoir lowered due, in part, to public fears of a repeat disaster. Shortly after the disaster and in the years following, several engineering panels met to discuss the safety of the dam.