- Year Taken
- 1959
- Category
- Earthquake
- Location
-
Hebgen Dam
Gallatin County, Mt. - Credit
- ID. WITKIND, no. 87ct
- Filename
- wij0087.png
- Description
- One of the large cracks in the concrete retaining wall of Hebgen Dam. The retaining wall, which is about 16 inches thick at the top and about 27 inches thick at the base, had a great many cracks in it of which 3 or 4 were as large as this one. The retaining wall slumped, tilted forward, and was fractured during the earthquake; water seeped through these fractures. Hebgen Lake earthquake, Gallatin County, Montana. August 1959.
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- Find in Official USGS Archive
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