Ontario Widening Highway 401 in Mississauga and Milton

Province Creating Jobs and Keeping People and Goods Moving Through the GTA.

Ontario is widening 18km of Highway 401 in Mississauga and Milton, to improve traffic flow and keep people and goods moving.

Kathryn McGarry, Minister of Transportation and Indira Naidoo-Harris, MPP for Halton, were in Mississauga to announce that the province has issued a request for proposals to design and build the highway.

The project will widen 18 kilometres of highway, from the Credit River in Mississauga to Regional Road 25 in Milton. Widening the highway will relieve congestion, allow for more efficient transportation and flow of goods, and help accommodate continued population and employment growth in the region.

Building new highways to get traffic moving is part of Ontario’s plan to create fairness and opportunity during this period of rapid economic change. The plan includes a higher minimum wage and better working conditions, free tuition for hundreds of thousands of students, easier access to affordable child care, and free prescription drugs for everyone under 25 through the biggest expansion of medicare in a generation.


  • The project is being delivered under Infrastructure Ontario’s Alternative Financing and Procurement model, which transfers risks associated with design, construction and financing of the project to the private sector.
  • Prequalified teams are able to submit their proposal to design, build and finance the Highway 401 Expansion project, with the successful bidder expected to be announced in 2019. The prequalified groups are: – Blackbird Infrastructure Group, including Dufferin Construction Company, Ferrovial Agroman Canada Inc., Klohn Crippen Berger Ltd. and TD Securities – LINK401, including Dragados Canada Inc., Brennan Infrastructures Inc., Bot Infrastructure Ltd., WSP Canada Group Limited, ACS Infrastructure Canada Inc. and Stonebridge Financial Corporation – West Corridor Constructors, including Aecon Infrastructure Management Inc., Amico Design Build Inc., Parsons Inc. and National Bank Financial Inc.
  • The average daily traffic for Highway 401 in the Peel and Halton region is approximately 118,000 to 175,000 vehicles per day.
  • In 2017/18, Ontario is committing more than $2.5 billion to repair and expand provincial highways and bridges across the province.
  • Ontario is making the largest infrastructure investment in hospitals, schools, public transit, roads and bridges in the province’s history. To learn more about what’s happening in your community, go to Ontario.ca/BuildON.



“This stretch of highway is one of the busiest in the province and is vital to the movement of people and goods in Ontario and the United States. Our government is committed to making the necessary infrastructure investments that sustain the economic growth in the GTA. Adding new lanes will keep traffic moving so businesses can get their products to market and people can get where they need to be sooner.”
 — Kathryn McGarry, Minister of Transportation


“Traffic and congestion are among the biggest issues facing residents in Mississauga and the GTA. We know that congestion costs us billions each year, time away from our family and our lives, as well as great frustration from sitting in traffic, not to mention the significant negative impact on our environment from thousands of idling cars and trucks. The 401 is an important economic corridor, especially through Mississauga and Milton, that moves people and goods to domestic and international markets, and is vital to our local, provincial and national economies. Investments like these that build infrastructure, while breaking gridlock to get people where they need to go more quickly, while moving goods to market in a more timely way are critical to our future prosperity and will help workers, students, and businesses succeed.”
 — Bonnie Crombie, Mayor of Mississauga


“Gridlock is the flip side to Mississauga’s continuing growth and dynamism. The widening and expansion of Highway 401 through northwest Mississauga will remove the bottleneck that slows eastbound morning traffic, and the westbound drive home. Mississauga residents will benefit from long-term ease of access, and save precious time. Adding HOV lanes will benefit drivers on Highway 401. The Province’s investments in modern infrastructure makes our transportation network more efficient, and helps fight climate change.”
 — Bob Delaney, Mississauga-Streetsville


“Our government is committed to making investments in modern infrastructure that make our transportation network more efficient for the people of this province. Adding HOV lanes to this section of Highway 401 will improve travel times and help us in our fight against climate change.”
 — Indira Naidoo-Harris, MPP for Halton


Celso Pereira
Minister’s Office

Bob Nichols
Communications Branch

Ministry of Transportation

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