The U.S. Interstate system doesn't have an I-50 or I-60 to avoid confusion with U.S. Highway 50 and 60 in certain states such ...

They say the road will serve as an important link for the Canadian Maritimes and Downeast Maine to the interstate system, ...

According to the Department of Transportation, U.S. Route 20 is the longest highway in the country at 3,365 miles, ending in ...