Portland Bureau of Emergency Management/Historic Disasters in the Portland Metro Area/Eruption of Mount St. Helens
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Washington State patrol cars outfitted with makeshift air filters in the aftermath of the 1980 St. Helens eruption.
Wikipedia article: 1980 Eruption of Mount St. Helens
1980 Post-eruption Ash Cleanup
| Date | Title | Author | Notes |
|---|---|---|---|
| 2025.12.03 | 1980 Mt St Helens Ash Cleanup (presentation slides) | Jim Quinn, Metro | Presentation slides to PBEM and Portland NET on the 1980 ash cleanup effort. |
| 1980.06.30 | Mt. St. Helens Ash Cleanup (report) | Jerry Markesino, Street Cleaning Supervisor, Portland Department of Public Works | Cited as a very helpful resource with details on how to address ashfall cleanup. |