The 2nd Edition Newsletter Is Here!

Please see the second edition of the project newsletter highlighting a few milestones and progress along the Highway 401 corridor.

Click here to read and download the newsletter in English. (PDF 6,492 KB)

Click here to read and download the newsletter in French. (PDF 6,274 KB)

Highway 401 Project Metrics to Date

Sixth Line Bridge Reopening

Creditview Road Bridge Reopening

Canadian Navigable Waters Act – Credit River Bridge Replacement, Project Notification

As part of the Highway 401 Expansion Project, the replacement of the Credit River Bridge requires approval under the Canadian Navigable Waters Act. West Corridor Constructors (WCC) has submitted an application to Transport Canada and is issuing this notice to initiate a 30-day comment period.

The full notice is provided here: CNWA – Credit River Bridge Replacement Project Notification.pdf 

More information on the works can be found at the on-line Navigable Waters Registry ( under the NPP File Number 2010-500544. If you have comments on the effect of this work on navigation, you can submit a comment through the registry website or by sending comments directly by email to or by mail to Transport Canada, Navigation Protection Program, 100 South Front Street, 1st Floor, Sarnia, Ontario, N7T 2M4.

Lane Shifts

Construction Notice Highway 401 Traffic Management

West Corridor Constructors is implementing a temporary change to the traffic configuration of Highway 401 on Monday, March 16 to Friday, April 24, 2020 and will be in place until Saturday, November 14, 2020.

The lane shift is required as part of the staging plan to facilitate construction along the 18 km long Highway 401 corridor.

Additional details are described in the construction notice. (PDF 2,351 KB) and on the Traffic page.

Construction Begins

Official Ground Breaking with the Associate Minister of Transport

On Friday, November 29th the West Corridor Constructors team welcomed the Associate Minister of Transportation, Kinga Surma and other Members of Provincial Parliament for a ground-breaking event. The morning celebration featured Aecon executives, John M. Beck Founder and Executive Chairman, Marty Harris SVP, and David Ellis, Project Director for the H401 Expansion Project, as well as senior executives from partner companies Parsons and Amico.

From left to right, Sheref Sabawy (MPP, Mississauga—Erin Mills), Nina Tangri (MPP, Mississauga—Streetsville), Kinga Surma, Associate Minister of Transportation, Deepak Anand (MPP, Mississauga—Malton), Rudy Cuzzetto (MPP, Mississauga—Lakeshore) and Amarjot Sandhu (Brampton West)



Numerous other attendees from the Ministry of Transportation, Infrastructure Ontario and West Corridor Constructors attended the event to celebrate the official start of construction.

Members of the West Corridor Constructors and the Associate Minister of Transport

Members of the West Corridor Constructors team with Kinga Surma, Associate Minister of Transportation


Construction begins on widening of busy stretch of Highway 401

Chris Fox, / Published Friday, November 29, 2019 12:35PM EST

Construction has begun on a major revamp of a busy stretch of Highway 401.

The $640 million project will see an 18-kilometre stretch of the highway from Mississauga to Milton widened in the hopes that doing so will expedite the flow of traffic.

“Our government is committed to strengthening Ontario’s highway network and making Ontario open for business,” Associate Minister of Transportation Kinga Surma said in a news release issued Thursday. “This crucial expansion of Highway 401 means that thousands of Ontarians will spend less time in traffic and more time on the things that matter to them – being with family, friends or at work.”

The expansion of Highway 401 west of the city was first announced in 2017 but construction only recently got underway on the project.

The project, which is being delivered by West Corridor Constructors, is expected to be completed by 2022.

Once complete, the widened highway will include:

  • 12 lane core-collector system from the Credit River to Winston Churchill Boulevard.
  • 10 lanes from Winston Churchill Boulevard to Highway 407 ETR/ Highway 401 interchange.
  • 12 lane core-collector system from Highway 407 ETR/ Highway 401 interchange to James Snow Parkway.
  • 10 lanes from James Snow Parkway to RR 25.
  • Median High Occupancy Vehicle (HOV) lanes.
  • New or improved support facilities and features, such as drainage, lighting, signage and carpool lots.


Public Information Centre (PIC)

The Online Public Information Centre (PIC) took place on October 17, 2019.
Details of the PIC and PIC materials can be reviewed below.

PIC Summary and Materials

An online Public Information Centre (PIC) was held on October 17, 2019 on the Project website. WCC hosted three live one-hour Question and Answer (Q&A) Sessions on October 17 through a web stream and teleconference. PIC materials are available below for review and download.

If you have any accessibility requirements in order to review documents or materials on this page, please contact the Project Team through the Contact Us page.

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