U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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co_27_I70_fhwa_1967_422.jpg


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1967

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CO

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I70

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Big rock job on I-70 at historic Georgetown, near grade. Excavation ran around 1,500,00 cubic yards in 2.6 miles, much of it in solid silver plume granite.

Big rock job on I-70 at historic Georgetown, near grade. Excavation ran around 1,500,00 cubic yards in 2.6 miles, much of it in solid silver plume granite.


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Updated: 04/14/2020
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000