Links to state transportation resources throughout the country including weather, cams, reports, and hotel reservations.
A designated scenic highway going through Georgia, Tennessee, North Carolina and South Carolina. Official tourism site.
Gives information with city maps and longitude and latitude information.
Covers many aspects.
Information and some history.
Written by Friends of the Earth and Taxpayers for Common Sense, this lists what they think are the 50 most wasteful road projects in America.
Federal Highway Administration page with a collection of articles including those on U.S. Highway numbering and creation of the Interstate system.
Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).
Information about state routes that could be an interstate of the same number.
Unofficial site which explains these potential thoroughfares.