IL 7 from 131st Street to south of 135th Street

The Illinois Department of Transportation (IDOT) initiated a preliminary engineering and environmental study (“Phase I”) for IL 7 from 131st Street to south of 135th Street in the Villages of Orland Park and Palos Park in Cook County.  IL 7 has been closed multiple times due to floodwater on the pavement.  The general scope of work for this improvement is anticipated to consist of drainage and roadway improvements that increase the level of flood protection along IL 7.  This improvement is included in the Department’s FY 2018-2023 Proposed Highway Improvement Program.  Our current engineering efforts are targeted to enable a contract letting in the middle years of our current multi-year program contingent upon plan readiness, land acquisition, and funding availability through our future annual legislative appropriations.

Note: IDOT projects typically have three distinct phases. Phase I (or the project Study) consists of developing the project scope, environmental studies and preliminary design of a project. Phase II (Design) consists of refining the design to develop contract plans and land acquisition. Phase III (Construction) consists of the actual construction of the project.


Section 4(f) Public Review and Comment - July 31, 2017 to August 30, 2017

IDOT is seeking public comments on Section 4(f) impacts the IL 7 (South of 135th Street to 131st Street) project will have on Groundhog Slough owned and operated by the Forest Preserve District of Cook County.  Section 4(f) lands include publicly owned parks, recreational areas, wildlife and waterfowl refuges, or public and private historical sites. The project will impact Groundhog Slough to construct a right turn lane, improve drainage and replace traffic signals.  This is the first opportunity for the public to comment on the additional public land needed for this project. The document can be viewed here or at the following locations from 9:00 AM to 3:00 PM, Monday thru Friday:

Illinois Department of Transportation
Bureau of Programming – 4th Floor
201 West Center Court
Schaumburg, IL 60196


Forest Preserve District of Cook County
536 North Harlem Avenue
River Forest, IL 60305

Written comments can be submitted at the IDOT office, mailed to the IDOT office, or submitted electronically at under the Section 4(f) tab.  Comments must be received by August 30, 2017 to be considered part of the public record.

Open House Public Meeting – July 27, 2016

An open house public meeting was held to discuss the need for the improvement, to present the proposed improvement plan and required land acquisition, and to obtain public input. The following materials were presented at the meeting: 

If you have any questions please contact Brenda Alicea, Project Manager, at (847)705-4107.

IDOT is currently at the early stages of Phase I for this project. As we make changes, this website will be updated accordingly.

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