Supports a four-lane highway running from Peoria to Macomb.

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.

The official site of the department. Includes information on construction projects and information about doing business with the department.

Pictures and descriptions of the ends of highways in Illinois.

A guide to the origin and evolution of the numbered highway system of Illinois. Includes route logs and other highway trivia.

Photographs of the state's highways collected by Dan Garnell.

Contains brief historical information about toll roads in Illinois.

History and details of these unusual service areas.

Contains resources related to this scenic drive around Lake Michigan.

Contains news articles from the late 1920s and early 1930s about roads and highways in Marshall County, Illinois.

Organization focused on promoting the history of the first byway going west across America, currently known as U.S. Route 40. Includes history of the road, stories, membership details, and contacts.

Official Illinois Department of Transportation web site covering the progress of the study looking at building a new expressway west of the Chicago area. Counties included in the study are Kendall, Kane, Grundy, Will, LaSalle, and DeKalb.

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.

A guide to the roads and highways around Cape Girardeau, Missouri including roads in southern Illinois.

Includes information about south western Illinois. Contains a speed trap page, images of old road maps, freeway junction list, photos, and rant page.

Information on the Illinois tollway system, including the I-Pass electronic toll collection system.

A look at old road maps including scans from 1920s era maps showing early alignments of US 60 in Illinois.

Aaron Renn's information and opinions on Chicago area commuting.

Environmental Law and Policy Center of the Midwest site against construction of new Illinois tollways (and other out of state highways).