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    The Collapse That California Forgot

    47 min
    |
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    Jan 26, 2026
    HistoryTechnologyLeadership

    The 1928 St. Francis Dam disaster killed 431+ people when 12 billion gallons of water surged through San Francisquito Canyon. Built by William Mulholland just two years earlier, the dam failed due to geological oversights and engineering flaws.

    The Collapse That California Forgot

    Best quote from The Collapse That California Forgot

    “

    The coroner's inquest recommended that the construction and operation of a great dam should never be left to the sole judgment of one man, no matter how eminent. This was a direct critique of the culture that had allowed Mulholland to operate with virtually no oversight.

    ”

    This audio lesson was created by a BeFreed community member

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    Give an overview of the history and causes of failure of the st Francis dam in California

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    Key Takeaways

    1

    The Forgotten Dam Catastrophe

    0:00
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    3

    The Warning Signs Nobody Heeded

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    4

    Engineering Hubris and Design Flaws

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    The Human Cost of Engineering Failure

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    The Reckoning and Mulholland's Fall

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    Lessons Written in Water and Blood

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    The Ghosts of San Francisquito Canyon

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    Building Safer Tomorrows

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    Remembering the Unthinkable

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