Thematic Map: US Highway System
Download a High Resolution JPEG Image of the US Highway System or an Adobe Acrobat Printable PDF of the Thematic US Highway System.
About US Highway System ....
You could think that US Highway System is an obsolete with the Interstate System. But especially in the Midwest and the South, a lot of the roads are designated US Highways rather then state highways.
Not that there is much of a difference, many US Highways are two-lanes at-grade and are maintained by state DOTs. In recent decades, funding is not based on US Highway designation but another set of designations on whether or not a road is an arterial highway. California and New York have a notable lack of US Highways.
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