Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
Traveling PublicMapsProjectsRoad ClosuresNewsDoing BusinessLetting & BiddingCareers@IDOTGeneral Info

US Route 20 @ McLean Boulevard


Home | Project Overview | Site M

Welcome to US Route 20 @ McLean Boulevard Website!

The Illinois Department of Transportation (IDOT) plans to perform a total reconstruction of the US 20 over McLean Boulevard interchange into a Single Point Urban Interchange (SPUI).

A Single Point Urban Interchange is an interchange with a single intersection versus two existing intersections at the ramp terminal.

Future US 20 @ McLean Interchange – Single Point Urban Interchange


In addition, IDOT will replace and widen the US 20 bridge structure over McLean Boulevard, while constructing two new retaining walls. Finally, IDOT will widen and reconstruct McLean Boulevard from south of Fleetwood Drive to north of Lillian Street into a 4-lane divided cross section with left/right turn lanes at major intersections.

The purpose of the $50 million dollar project is to enhance the flow of traffic and reduce the potential for accidents through improved safety features. The goal of the US Route 20 Interchange Reconstruction is to provide a safer ride for the motoring public. IDOT anticipates more commercial development along with urban renewal and public advancement. Motorists should expect delays and use caution when workers are present. IDOT suggests using alternate routes and public transportation.

Project Start: July, 2012
Project End: Fall, 2014
Project Cost: $44,400,000
Project Municipality: Elgin
Project County: Kane


Construction Flyer
English Spanish

 Click on image to open

This site has been created to facilitate public input and provide information about the project and schedule. We invite you to explore the site and provide your comments and concerns regarding the project through our “Contact Us” section.

This site will be updated periodically as the project progresses. The Illinois Department of Transportation (IDOT) wishes to thank you for your support and patience.


Did you know work zone fatalities are down 29.6 percent compared to 2003? Aggressive law enforcement and awareness campaigns and significant improvements to work zone safety traffic control reduced Illinois work zone fatalities from 44 in 2003, including 5 workers, to provisionally 30 with 3 workers killed in 2010.
So, Give ‘em a brake…slow down for their sake and yours!

IDOT appreciates your patience and understanding as we work to improve the roadways in your community.


IDOT's new website provides up to date information on all current active construction contracts, including those funded through the American Recovery and Reinvestment Act of 2009, after contract execution.


If you are a small business and are interested in work on road construction projects with IDOT, click here for information on IDOT’s Disadvantaged Business Enterprise program.


If you have a specific project-related question, please submit your question by visiting IDOT’s website and complete the email form to receive a prompt response.


IDOT Privacy Statement | Illinois Privacy Information | Kids Privacy | Web Accessibility  | FOIA