I-85 Roadcuts
I-85 traverses Georgia on a northeast-southwest course, more-or-less parallel to
the Brevard Zone and the
Chattahoochee River. In consequence, most I-85 roadcuts
in the Atlanta area expose Clairmont formation or
close relatives thereof.
- Boford Dam
- Rock in the rubble pile below Buford Dam -- and in the bed of the Chattahoochee
River -- is probably Clairmont formation.
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- Ga. Hwy 20 at
Suwanee Dam Road
- Construction cut behind shopping center in the intersection's
northeast quadrant
-
- Clairmont Road exit northbound
- Type locality for the Clairmont formation.
Look for a massive cut face in the southwest
quadrant of the intersection, alongside the
exit ramp from I-85 northbound. Nearly
impossible to miss, even if you are not
looking for it.
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- Georgia Highway 13 (I-85 feeder)
southbound near Piedmont Road
- Cut face on right (west) along the feeder road to I-85
southbound, at the Armour Drive entrance ramp
south of Piedmont Road.
-
- I-85 entrance ramp to I-75 northbound
- Cut face on right of entrance ramp from I-85 southbound to I-75
northbound, departing midtown Atlanta. You must be crazy to
stop here. (No photos.)
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- South Fulton Parkway
- South Fulton Parkway branches from I-85 southbound amid the interchange
with I-285 southwest of Atlanta. Roadcuts about 1/2 mile east of
Cedar Grove Road and
about 1-1/2 miles east of Georgia Highway 92
(Campbellton-Fairburn Road) expose rock
strongly resembling Clairmont formation.
Please see disclaimer.