The Ontario Ministry of Transportation (MTO) has retained Stantec Consulting Ltd. to undertake the Preliminary Design, Class Environmental Assessment (EA), and Design Build Ready Study for new interchange ramps at Highway 401 and Southminster Bourne. This study will review existing conditions, develop and evaluate potential ramp alternatives, identify potential impacts, and develop preliminary environmental mitigation measures. A Recommended Plan will be confirmed at the completion of the study.

The study area is located within the Municipality of Middlesex Centre, Township of Southwold, Elgin County, Middlesex County, and the City of London.

An online Public Information Centre (PIC) has been scheduled to present and gather feedback on existing conditions, the evaluation of the ramp design alternatives, and the Preferred Design for the improvements. The PIC displays will be available for review on this website from September 16, 2026, to October 7, 2026.

Click here for the detailed notice.