Total Failure of St. Francis Dam Renewed Calls for Oversight

The second deadliest dam failure in U.S. history happened suddenly. The St. Francis Dam was a 205-ft-high concrete gravity arch dam located in San Francisquito Canyon, 30 miles north of Los Angeles.

Tom Scott- The Collapsed Dam That Stopped Los Angeles, 09112015

Los Angeles needed water, and lots of it. It still does. And that water comes from the LA Aqueduct, master-planned by William Mulholland. The end of his career, though, wasn't such a triumph. This is the story of the St Francis Dam, and the collapse that stopped Los Angeles from taking over an entire valley.