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St. Clair County - Illinois 13 in Belleville Phase I Study
IL Route 157 to South 23rd Street
Belleville, St. Clair County, IL
Public Comment Period
IDOT hosted an in-person Public Meeting for this project on October 29, 2025. The virtual public meeting is ongoing until November 12th.
All exhibits and handouts from the meeting are posted on the Get Involved page. IDOT would welcome input from the public on this project. There is an online portal to leave comments through November 12th.
The Illinois Department of Transportation (IDOT) is performing a Preliminary Engineering and Environmental Study to analyze roadway improvements for IL Route 13 from IL Route 157 to South 23rd Street in Belleville.
This study will take a detailed look at improvements to IL Route 13 from IL Route 157 to South 23rd Street In Belleville. Improvements to be studied include the resurfacing of the existing pavement and intersection improvements.
IDOT and its engineering consultant team, aided by input from the public, will inventory existing conditions (such as traffic data and crash history), identify and document environmental constraints, and develop and refine improvement options (alternatives). The result of the study will be a preferred alternative that addresses identified transportation issues and serves the area’s future needs.
