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The County of DuPage
Wheaton, Illinois

Public Information

The following are reports and documents published by the department for public review.  These documents are current versions and may be downloaded and reproduced.  Please be advised that the Department is not responsible for misinterpretation or misuse of the data included in these documents. 

75th Street - Lyman Avenue to Exner Road Road Improvements Study

DuPage County is presently considering improvements to 75th Street from Lyman Avenue to Exner Road/Williams Street in the Village of Downers Grove and City of Darien.  The Division of Transportation is anticipating beginning design on this section of road in the spring of 2018.  The following is information related to the project schedule and the proposed improvements at the conclusion of the Preliminary Engineering phase. 

DuPage County Long Range Transportation Plan

DuPage County is in the process of producing its first Long Range Transportation Plan.  Information about the Plan, stakeholder involvement, ways to become involved in the Plan, Plan schedule and expected outcomes, please refer to the project website at or contact Plan Manager John Loper at

DuPage County Comprehensive Road Improvement Plan

The DuPage County Division of Transportation is required by Impact Fee Law to periodically update its comprehensive road improvement program. This plan includes reports on the current highway system, highway performance and programs and costs associated with mitigating needs.  For any questions, please contact John Loper , Chief of Transportation Planning, at 630/407-6882, or at

Updated 03/28/2018