Road trip reports
Details from various excursions between Illinois and the East Coast, including photographs.

Highways.TV
Links to state transportation resources throughout the country including weather, cams, reports, and hotel reservations.

Southern Highroads Trail
A designated scenic highway going through Georgia, Tennessee, North Carolina and South Carolina. Official tourism site.

The Interstate Archive
Gives information with city maps and longitude and latitude information.

US Highway 101: Guide to the Pacific Coast Highway
Covers many aspects.

US Route 20
Information and some history.

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.

Highway History
Federal Highway Administration page with a collection of articles including those on U.S. Highway numbering and creation of the Interstate system.

Route 40 - National Road
Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).

3dis that Aren't--State Route Spurs and Loops
Information about state routes that could be an interstate of the same number.

Appalachian Regional Commission Development Corridors
Unofficial site which explains these potential thoroughfares.

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)".

US Highways: From US 1 to US 830
Complete list including historic, plus other features.

Federal Highway Administration
Much content on many aspects, including an official Interstate route log.

Bygone Byways
Descriptions of current and former US routes 66, 80, 99, and 101 as well as other notes.

3-digit Interstate Highways
Location, history, and trivia. Includes ones that were proposed but never built.

Richard and Suzanne's Big 1999 Road Trip
Travelogue covering many southern states. Also links to the 1997 trip. Some photos.

US Road Conditions.com
Gives links to each state's respective webpages.

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.

SmarTraveler
Traffic reports for cities and other travel information.

American Association of State Highway and Transportation Officials
Much information on this consortium.

Southern Highways
Various scenes from along the southern tier of the country.

Highway Deficiencies
A compendium of substandard features.

The Road Information Program
Nonprofit organization promoting policies which are designed to improve traffic conditions.

Coast to Coast on US 50
History and other information.

ScenicDrivesOnline.com
Listings which include scenery descriptions, road conditions, and points of interest.

Midwestroads.com
Covers the respective region of the country. Includes historic maps, planning documents and reports, and photos.

National Cooperative Highway Research Program - Projects
Listings for this division of the Transportation Research Board, a unit of the National Research Council.

Eastern Megalopolis Bypass
Private proposal.

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.

Interstate-Guide.com
Includes the Interstate Guide, the List of Interstate Business Routes, and the Interstate Shield Gallery. Extensive coverage.

Roads, Highways and Trails
Detailed personal travelogue.

MotorcycleRoads.US
Compilation of lists specifically for motorcyclists who prefer scenic or winding routes.

American Society of Highway Engineers
Newsletters, FAQ, and other features relevant to the trade.

Road Stuff
Much Northeast coverage. Also includes photos, map scans, and a log of Route 9's in the country.

On the Road
Reports of a 2003 trip along the length of US 1 by two correspondents of Wired News.

Traffic Counts
List of Average Daily Traffic (ADT) tallies for major metropolitan areas.

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. Site includes maps, project status, and various other facts.

The Expressway Site
Describes by state the highways which are high-speed divided thoroughfares with occasional at-grade intersections.

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.

United States Code Title 23 - Highways
Complete contents of the document.

Larry's Phat Page - Highways
Route logs of and personal travel comments about various highways, primarily Interstates.

The ZZYZX Interstate Highway List
Gives an overview of the system and provides a listing of all one- and two-digit routes.

American Highway Users Alliance
Interest group representing motor vehicle users and businesses promoting highway safety and efficiency. Site includes news updates and Rules of the Road publication information.

New England Turnpikes
Information, exit lists, and photos of the modern-day turnpikes.

U.S. Route 6 Tourist Association
Covers the entirety of the route. Page includes background, news articles, and maps.