Transportation and Infrastructure

South Perimeter Highway Projects

The South Perimeter Highway is one of the most important economic corridors in Manitoba. As a part of the Trans Canada Highway, the South Perimeter Highway has a strategic role in connecting the provincial economy to world markets. The Perimeter Highway also provides communities with access to employment, education, services, and amenities.

McGillivray Interchange Project

The McGillivray Interchange Project is a part of Manitoba Transportation and Infrastructure’s Winnipeg One Million Perimeter Freeway Initiative, which aims to support the vision of Winnipeg becoming a national and international trade hub, and to accommodate the anticipated future population of Winnipeg and the surrounding areas. This project will also support the upgrade of the Perimeter Highway to a free-flow, access controlled modern day freeway as Winnipeg approaches a population of one million.

The intersection at McGillivray Boulevard (Provincial Truck Highway or PTH 3) and the Perimeter Highway (Provincial Trunk Highway or PTH 100) was identified as a priority in the South Perimeter Highway Design Study, based on a set of evaluation criteria including current road capacity, traffic volumes, resultant level of service, existing safety issues and forecasted traffic growth. PTH 3 is also an important link connecting the communities of Oak Bluff, Sanford, Brunkild and Sperling in the Rural Municipality of Macdonald to Winnipeg and surrounding towns in southern Manitoba.

The McGillivray Interchange Project will be completed in two phases: Interim and Ultimate.

Interim Phase

The Interim phase of the project is configured as a traditional diamond interchange with intersections and a bridge structure to cross PTH 100. PTH 3 (McGillivray Boulevard) is realigned to the east to improve the crossing angle at the Perimeter Highway.

The interchange is designed for four lanes of traffic and the Perimeter Highway will continue to be a four-lane roadway accommodating projected traffic volumes for approximately 30 years.

Updated Interim Phase – Stage Two Presentation:
Design and Construction of an Interchange at PTH 100 and PTH 3 - Stage 2 (PDF)

Updated Interim Phase – Stage One Presentation:
Design and Construction of an Interchange at PTH 100 and PTH 3 (PDF)

Interim Stage Design Drawings can be found here:
Initial Stage Plans (PDF)

Ultimate Phase

As traffic volumes increase, based on forecasted growth in the Capital Region, the Ultimate design for the interchange will be implemented to increase to six traffic lanes on PTH 100 (the Perimeter Highway) and two bridge overpasses on PTH 3 (McGillivray Boulevard).

Ultimate Stage Design Drawings can be found here:
Ultimate Stage Plans (PDF)

Timeline

June 2021	McGillivray Boulevard Interchange Project Announced
May 2023	Contract awarded to WSP Global Inc. for Owner's Engineer Work
December 2023	Complete Interim Phase – Phase 1 - Project Preparation/Confirmation of Project Plan
February 2024	Stage 2 Public Engagement: Present refined roadway and structure design and collect feedback
2024	Procurement of Design Build Contractor
2025-2028	Detailed Design and Construction

Contact Us

Major Projects Branch
majorprojects@gov.mb.ca

St. Mary’s Road Interchange Project

The St. Mary’s Road interchange Project is a part of Manitoba Transportation and Infrastructure’s Winnipeg One Million Perimeter Freeway Initiative, which aims to support the international trade hub and accommodate the anticipated future population of Winnipeg and surrounding areas. This initiative includes a plan to upgrade the Perimeter Highway to a freeway standard as Winnipeg approaches reaching a population of one million.

The St. Mary’s Road interchange was Manitoba's first priority in implementing the recommendations of the South Perimeter Highway Design Study, completed in 2020.

The intersection at St. Mary's Road (Provincial Road or PR 200) and the Perimeter Highway (Provincial Trunk Highway or PTH 100) was identified as a priority in the South Perimeter Highway Design Study, based on a set of evaluation criteria including current road capacity, traffic volumes, resultant level of service, existing safety issues and forecasted traffic growth. PR 200 is also an important link connecting the community of St. Adolphe to Winnipeg and surrounding towns in southern Manitoba.

The St. Mary’s Interchange project will be delivered in 2 phases to address current and forecasted traffic volumes.

Interim Phase

The Interim phase of the project, which is currently being executed, is configured as a traditional diamond interchange with roundabouts at the two intersections and a bridge structure to cross PTH 100. St. Mary’s Road is realigned to the east to improve the crossing angle at the Perimeter Highway and increase the distance from the Red River.

The interchange is designed for four lanes of traffic and an active transportation pathway along the realignment. The Perimeter Highway will continue to be a four-lane roadway accommodating projected traffic volumes for approximately 30 years.

Ultimate Phase

As traffic volumes increase, based on forecasted growth in the Capital Region, the Ultimate design for the interchange will be implemented to increase to six traffic lanes on the Perimeter and two bridge overpasses on St. Mary’s Road.

Timeline

June 2020	St. Mary’s Interchange Project Announced
October 2020-December 2021	Design-Build RFP Procurement Phase
January 2022	Contract awarded to Aecon Infrastructure Management Inc.
February 2022	Project Launch Meeting
March 2022	60% design, tree clearing
May 2022	Roadway construction starts, multiple phases
July 2022	100% design complete, Bridge structure construction starts
June 2024	Interchange open to traffic
November 2024	Construction fully completed

Project Plans

Project plans are shown at the 60% design stage and are subject to change as the design progresses to 100% design.

St. Mary's Interchange Project (PDF)

Traffic Information

Traffic will need to be re-routed occasionally throughout construction of the St. Mary’s Interchange. Lane closures and detour information will be updated here:

Manitoba 511

City of Winnipeg Lane Closures

Manitoba Infrastructure Projects Map

Contact Us

Major Projects Branch
majorprojects@gov.mb.ca

South Perimeter Highway Safety Plan

A South Perimeter Highway Safety Plan was developed in 2018 with the intent to implement it over three years. The safety plan involves changes to access points in most locations, including the closing of median openings where intersections are controlled with stop signs. The project will also require investment in service roads.

Intersection improvements have been constructed at PTH 3 and at Symington Road to improve traffic operations. Construction will start on new service roads in 2020 to provide improved access to businesses along Aimes Road, Melnick Road, the Brady Road Landfill and the Oak Bluff Industrial Park. To further improve safety, additional access closures are under consideration for 2020.

The South Perimeter Highway Safety Plan can be viewed here: English (ZIP, 108.5 MB)

South Perimeter Highway Design Study

This involves the development of a longer-term plan for reconstructing PTH 100 to a freeway standard and providing for an ultimate six-lane roadway with three through lanes in each direction. A freeway standard means that there can be no at-grade crossings so that intersecting roadways and railways will be designed to be grade separated though interchanges and overpasses.

South Perimeter Design Study Final Report (PDF, 13 MB)

This publication is available in alternate formats upon request.

For alternate format requests, please contact Corporate Services Division, the Accessibility Coordinator at the email below:

Department of Infrastructure Accessibility Coordinator
1710 - 215 Garry Street
Winnipeg MB, R3C 3Z1

Phone: 204-945-4800
E-mail: AdminServDivADM@gov.mb.ca