St. Francis Dam Failure
Named in 1 episode title on this site. Kind: dam.
| Place | Los Angeles County, California, U.S. |
|---|---|
| Kind | dam |
| Wikipedia | en.wikipedia.org/wiki/St._Francis_Dam |
After the problem: the environment
| Ecological impact | St. Francis Dam failed 12 Mar 1928 near Santa Clarita, CA; ~12.4B gallons released, killed at least 431 |
|---|---|
| Mechanism / vector | destruction — concrete dam collapse released a flood wave; no persistent contamination documented |
| Remediation class | none |
| Remediation status | no remediation record found — legacy is dam-safety regulation (CA Division of Safety of Dams), not site cleanup |
| Interest (0–5) | 3 |
Sources
- usgs.gov/media/images/st-francis-dam-disaster (fetched 2026-09-20)