Study Overview

Previous Studies

MTO completed a Preliminary Design Study for the currently planned Highway 5 and Highway 6 interchange, including the submission of a Transportation Environmental Study Report (TESR) in 2003, and obtained the appropriate environmental approvals at that time. The 2003 study examined the provision of a new interchange to replace the existing Highway 5 and Highway 6 intersection in order to accommodate future traffic demand. A TESR Addendum was completed in 2013 to document updates to the preliminary design including the associated municipal roads. The 2003 TESR and 2013 TESR Addendum are available on the Documents page of this website.

Detail Design Overview

The study currently includes the following components:

  • New parclo A-4 interchange at the Highway 5 and Highway 6 intersection;
  • A new underpass bridge structure providing a grade separated crossing of Highway 5 over Highway 6;
  • Borer’s Creek culvert extension at Highway 6 and retaining walls;
  • Widening of Highway 5 and Highway 6 within the project limits;
  • Provisions for future additional southbound lane on Highway 6;
  • Relocation of sanitary sewer and watermain, as required within the project limits;
  • Construction of Municipal roads in the vicinity of the proposed new Highway 5 and Highway 6 Interchange;
  • Installation of full illumination within the project limits;
  • Installation of traffic signals at ramp terminal intersections and municipal intersections;
  • Drainage improvements and storm water management ponds;
  • Commuter parking lot in the northeast quadrant of the interchange;
  • Multi-Use-Paths (MUPs) on both sides of Dundas Street East and Highway 5 between Clappison Avenue and Innovation Drive;
  • Bicycle lanes on Highway 5 between Innovation Drive and Coreslab Drive; and
  • Pavement rehabilitation of Highway 6 from Bruce Trail Culvert southwards to the north limit of Highway 403/Highway 6 interchange, including Highway 6/York Road interchange.

Detail Design followed the approved planning process for Group “B” projects under the Class Environmental Assessment for Provincial Transportation Facilities (MTO, 2000), with the opportunity for input from Indigenous communities, stakeholders and the public throughout the project.

One Public Information Centre (PIC) was held for this Detail Design study on May 23, 2024. Details on the date, time, and location of this PIC were posted to the Consultation Page of this website and sent to all contacts on the project mailing list.

The Detail Design Study is now complete. The comment period for the Design and Construction Report (DCR) ended on January 23, 2026. Information on this website is provided for reference purposes only.