| Incipient road collapse due to karst feature |
photo and information provided by (c) Dr. David M. Doolin
| The photograph shows a road cut along Highway 25E in Eastern Tennessee northwest of Clinch Mountain. A secondary road runs along the top of the road cut, as can be seen from the guard rail. The rock is Paleozoic limestone or dolostone, lower Ordivician to upper Cambrian, most likely Marysville Limestone. The prominent karst feature is a residuum filled crevice in an "early stage" of decay. The photo was taken in 1996. Most likely Tennessee Department of Transportation has remediated the incipient road collapse. |
available by the geoengineer website
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