Interstate 35 (I-35) serves the central United States. As with most interstate highways that end in a “5,” it is a major cross-country, north-south route. I-35 runs from Laredo, Texas, near the Mexican border to Duluth, Minnesota, near the Canadian border.
I-35 was designated by the American Association of State Highway Officials (AASHO; now AASHTO) on August 14, 1957, as an original interstate highway from Laredo north to Duluth.
With a length...