Metric signs for the Dover/Smyrna bypass section of Delaware State Route 1 were installed in metric to conform with what were, in 1993, the current Federal Guidelines. It was Delaware’s first metric highway, including kilometre markers! The kilometre marking posts and the corresponding exit numbers remain, but the other signs were revised to miles. Information provided by Michael Williams, Community Relations Officer, DelDOT Public Relations. Photos courtesy of the DelDOT website.
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