AMERICA'S INFRASTRUCTURE: 1% CATASTROPHE episode artwork

EPISODE · May 12, 2026 · 5 MIN

AMERICA'S INFRASTRUCTURE: 1% CATASTROPHE

from AMERICA'S INFRASTRUCTURE

The term 100-year flood is misleading, it does not mean once per century. It means a 1% chance every year, which compounds over a lifetime. Engineers are abandoning the term because it gives the public a false sense of safety. Risk accumulates with time, a 1% annual chance becomes a 20% change over 30 years.

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AMERICA'S INFRASTRUCTURE: 1% CATASTROPHE

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This episode is 5 minutes long.

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This episode was published on May 12, 2026.

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The term 100-year flood is misleading, it does not mean once per century. It means a 1% chance every year, which compounds over a lifetime. Engineers are abandoning the term because it gives the public a false sense of safety. Risk accumulates with...

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