Illinois Department of Transportation
- The official site of the department. Includes information on construction projects and information about doing business with the department.
Illinois Highways Page
- A guide to the origin and evolution of the numbered system. Includes route logs and other trivia.
The Cape Rock - Roads and Highways - A guide to the roads and highways around Cape Girardeau, Missouri including roads in southern Illinois.
Chicago Department of Transportation - Offers news, real time traffic information and weekly bulletins, projects and programs, and information on bureaus of highways, streets, traffic, signs and markings, bridges and transit, inspections, and administration and planning.
Chicago Skyway - Official site of the company that now leases the toll route in southeast Chicago. Site includes history and toll information.
336 Coalition - Supports a four-lane highway running from Peoria to Macomb.
CookExpressways.com - Covers the history of the system in Cook County, including Chicago.
Expressways - Entry from the Encyclopedia of Chicago. Gives historic background and includes a map.
Marshall County History - Contains relevant news articles from the late 1920s and early 1930s.
No Illiana Toll Road - Website of Citizens Against the Privatized Illiana Tollroad, regarding the proposed east-west facility running through the southeast outskirts of metropolitan Chicago.
The Road Ahead - A look at old road maps including scans from 1920s era maps showing early alignments of US 60 in Illinois.
Spoon River Drive - Organization promoting this scenic route in Fulton County which was the setting of Edgar Lee Master's "Spoon River Anthology". Contains maps and other information.
- The official site of the department. Includes information on construction projects and information about doing business with the department.
