I remember reading that Mulholland was a strong leader in LA building dams for Ventura and LA County and making water right purchases. His efforts opened up the San Fernando Valley to development and essentially made LA what it is today including the current water supply system.
He and an assistant inspected the St. Francis Dam and 1 hours later the dam burst and the final body count was in the hundreds.
Unlike today’s politicians he took public responsibility and resigned.
https://en.wikipedia.org/wiki/William_Mulholland
1 day later
A couple of interesting things about the St Francis break. It went all the way to the ocean and bodies were swept clear out to sea with some recovered on the Mexican border far to the south.
The St. Francis held 1/10th of what Oroville holds.