Ontario Newsroom

Widening Highway 401 to Keep People Moving

Archived News Release

Widening Highway 401 to Keep People Moving

Expansion Project will Help Manage Congestion and Improve Commutes

Ministry of Transportation

Ontario is creating jobs and keeping people moving by widening 18 kilometres of Highway 401 from the Credit River in Mississauga to Regional Road 25 in Milton.  

The Highway 401 Expansion project includes adding HOV lanes in each direction and widening the existing six lane configuration to:

  • Twelve lanes from the Credit River to Winston Churchill Boulevard
  • Ten lanes from Winston Churchill Boulevard to Highway 407 ETR / Highway 401 interchange
  • Twelve lanes from Highway 407 ETR / Highway 401 interchange to James Snow Parkway
  • Ten lanes from the James Snow Parkway to Regional Road 25

Widening the 401 will relieve congestion, allow for a more efficient transportation and flow of goods, and will help accommodate continued population and employment growth in the region.

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.

Investing in better highways to keep people moving is part of our plan to create jobs, grow our economy and help people in their everyday lives.

Quick Facts

  • The province has issued a Request for Qualifications to design, build and finance the Highway 401 expansion project—the first step in getting construction underway.
  • 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.
  • The average daily traffic for the Highway 401 in the Peel and Halton Region is approximately 108,000 to 188,000 vehicles per day.
  • Ontario is committing over $2.1 billion to repair and expand provincial highways and bridges across the province.

Additional Resources


“Highway 401 is a critical highway for commuters and commercial traffic traveling throughout Ontario and the United States. The addition of both HOV and general purpose lanes is further proof of the province’s commitment to making improvements that will help us manage congestion and improve mobility in the daily commutes of Ontarians travelling across the region.”

Steven Del Duca

Minister of Transportation

“Morning and evening gridlock are the constant companion to western Mississauga motorists. 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. Our residents grasp and support the short-term construction inconvenience, noise and dust in return for the long-term ease of access, saving of time, and better use of our 401 traffic artery.”

Bob Delaney

MPP for Mississauga-Streetsville

“Our government is proud to make the necessary transportation improvements across the GTHA, including ‎the Highway 401 expansion project‎ in our region. These important investments in infrastructure are vital to economic growth while helping our families and daily commuters get home faster and safely.”

Charles Sousa

MPP for Mississauga South

“The provincial government is once again pressing ahead with important investments that build infrastructure, break gridlock and improve the flow of traffic along the 401 highway. This project will help students, workers and all people better move throughout Mississauga, Ontario's third-largest city, and across the GTHA. The 401 highway is an important economic corridor that job creators rely on daily to reach consumers and move goods to Pearson airport, across the U.S. border and to destinations throughout Ontario.”

Bonnie Crombie

Mayor of Mississauga

“Peel Regional Council has established the Peel Goods Movement Task Force to facilitate better planning and implementation of goods movement infrastructure and services in partnership with the private sector and other levels of government. A study by Metrolinx estimates that congestion on roads in the GTHA cost commuters and businesses $6 billion in 2006. The Province’s improvements to the 401 will help relieve congestion on a highway relied upon by residents and businesses in the Region of Peel.‎”

Linda Jeffrey

Mayor of Brampton

“The widening of the 401 from the Credit River in Mississauga to Highway 25 in Milton is great news for Halton commuters. This will reduce traffic gridlock and make it easier for commuters to spend more time with their families. Our government is investing in infrastructure to keep people moving and strengthen our economy.”

Indira Naidoo-Harris

MPP for Halton

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