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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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il_9_aasho_64_496.jpg


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1964

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AASHO Road Test - Illinois - Two-axle tractor scraper used in special studies after regular test traffic.

AASHO Road Test - Illinois - Two-axle tractor scraper used in special studies after regular test traffic.


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