I-55 at Lorenzo Rd & Il 129

About the Study

In July 2013, the I-55 @ Lorenzo Road and IL 129 Study has been combined with the llliana Corridor Project due to the proximity and need for comprehensive vision in the development of alternatives at the western terminus of the Illiana Corridor.

In July 2013, the I-55 @ Lorenzo Road and IL 129 Study has been combined with the llliana Corridor Project due to the proximity and need for comprehensive vision in the development of alternatives at the western terminus of the Illiana Corridor. 

This portion of the Illiana website has been designed to provide project information that was previously developed for the I-55 @ Lorenzo Road and IL 129 Study.

In spring of 2008, the Illinois Department of Transportation (Department) began phase I engineering and environmental studies for the improvement of two interchanges on Interstate 55 at Lorenzo Road and Illinois Route 129. Studies had shown that the current interchanges will not be sufficient to meet the projected future traffic needs and it is therefore necessary to study the corridor and identify a solution. The primary focus is the rehabilitation and reconfiguration of the interchanges. The study may also include improvements to the I-55 roadway, as well as the adjacent frontage roads.

Study Area Map

Study Area Map for I-55 at Lorenzo Rd & IL 129

The I-55 Wilmington Study combined with the Illiana Corridor will continue outreach efforts to affected stakeholders including city leaders, businesses, residents and organizations.  There will be ample opportunity for public participation because it will aid with the preliminary design and environmental assessment process. Public involvement helps get feedback from a wide range of stakeholders, as well as meet IDOT guidelines for National Environmental Policy Act (NEPA) public involvement requirements.

Multiple alternatives will be developed that satisfy the purpose and need of the project. Each alternative will be analyzed for its impacts both environmentally and ecologically. The alternatives will be evaluated and presented during future public meetings/hearings.