American Byways - Covers Kentucky, Ohio Tennessee, Virginia, and West Virginia and surrounding areas. Photography, historical information, and forum.
American Highway Users Alliance - Interest group representing motor vehicle users and businesses promoting highway safety and efficiency. News updates and Rules of the Road publication information.
Corporate Sponsor Adopt A Highway Program - Lists the steps which may be taken for Adopt-A-Highway Litter Removal Service of America, Incorporated to manage the section which is requested. Includes option to receive visual impressions.
3-digit Interstate Highways - Location, history, and trivia. Includes ones that were proposed but never built.
Expressways Online - Commentary and articles about relevant issues, authored by a former editor of Roads and Bridges magazine.
Gorp's Top Ten US Scenic Drives - List which includes details on the Blue Ridge Parkway, Seward Highway, California 1, Vermont 100, and the Custer Scenic Byway.
Green Highways Partnership - Multi-sector initiative that seeks to incorporate environmental sustainability into all surface transportation infrastructure. FAQs, media resources, and contact information.
Heartland Expressway - A proposed divided highway running between Rapid City, South Dakota and Denver, Colorado, also known as High Priority Corridor 14 of the Intermodal Surface Transportation Efficiency Act of 1991. Maps, project status, and various other facts.
High Priority Corridors - Information about these highways which have been set aside as most important in the 1998 bill "Transportation Equity Act for the 21st Century (TEA-21)".
Highway History - Federal Highway Administration page with a collection of articles including those on U.S. Highway numbering and creation of the Interstate system.
Highways and Gas Stations - Includes information on various highways in Minnesota, Missouri, Ohio, and Pennsylvania.
Highways.TV - Links to state transportation resources throughout the country including weather, cams, reports, and hotel reservations.
The Interstate is 50 - American Association of State Highway and Transportation Officials page commemorating the 50th anniversary of the Interstate System in 2006. Includes history and photographs.
Interstate-Guide.com - Includes the Interstate Guide, the List of Interstate Business Routes, and the Interstate Shield Gallery. Includes coverage.
Kim Russell's U.S. Highways Page - Gives brief descriptions of all U.S.-numbered routes, past and present, as well as suggestions for possible future routings.
Larry's Phat Page - Highways - Route logs of and personal travel comments about various highways, primarily Interstates.
Ports-to-Plains Trade Corridor - Coalition to improve north-south transport in the West-Central part of the country. Maps, construction information, and contact information.
Redhighways.com - Text guides to various U.S. Highways, with links.
The Road Information Program - Nonprofit organization promoting policies which are designed to improve traffic conditions.
Road Stuff - Much Northeast coverage. Also includes photos, map scans, and a log of Route 9's in the country.
1999 Road to Ruin Report - 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.
Road Trip USA - Great detail on various at-grade long-distance routes.
U.S. Hwy. 90 - The Southern Route 66 - Travelogue and old postcard scans. Page linked is Louisiana but there are also pages on Texas, Mississippi, Alabama, and Florida.