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St. Francis Dam - Alchetron, The Free Social Encyclopedia
St. Francis Dam - Alchetron, The Free Social Encyclopedia
Aug 18, 2017
alchetron.com
The reservoir held 122 billion gallons - then the dam suddenly failed
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The reservoir held 122 billion gallons - then the dam suddenly fa…
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MSNSidetrack Adventures
On this day in California history, tragedy struck. The St. Francis Dam was a concrete gravity dam located in San Francisquito Canyon in Los Angeles County built from 1924 to 1926 to serve Los Angeles's growing water needs. It catastrophically failed in 1928 due to a defective soil foundation, claiming the lives of at least 431 people. The collapse of the St. Francis Dam is considered to be one of the worst American civil engineering disasters of the 20th century and remains the second-greatest l
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On this day in California history, tragedy struck. The St. Francis Da…
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90 years ago today the St. Francis Dam collapsed - the second-deadliest disaster in California history. | Newsweek
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90 years ago today the St. Francis Dam collapsed - the second-deadli…
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FacebookNewsweek
The St. Francis Dam didn't break from bad concrete. It broke because the ground beneath it failed. On March 12, 1928, this Los Angeles water supply dam held 12.4 billion gallons. Just before midnight, the foundation—built on unstable geological formations—collapsed catastrophically. The concrete structure itself remained largely intact as it slid away. Over 400 people died in the Santa Clara River Valley as the floodwaters rushed 54 miles to the ocean. Dam designer William Mulholland's career en
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The St. Francis Dam didn't break from bad concrete. It broke becau…
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What's the truth behind this engineering disaster? 🤔 The St. Francis Dam collapsed due to its construction on an ancient landslide, which shifted under the dam's weight, combined with poor geological conditions and flaws in the dam's design, including a base too narrow for the raised height of the dam and an insufficient foundation that was eroded by water! #science #physics #engineering #geology #bridge #civilengineering #history #knowledge | Learning with Lyrics
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I built a mini hydroelectric dam! 🌊
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This dam held 12 billion gallons - it let go without warning
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