Motorists face heavy delays on Hwy. 401 in west Mississauga as $640-millon expansion continues


Published November 22, 2021 at 11:01 am

Westbound Hwy. 401 traffic through the heart of Mississauga is moving slowly this morning due to construction.  

With lane realignment work being completed in the highway’s westbound lanes approaching Mississauga Rd., heavy traffic delays have been reported all morning from approaching Hurontario St. in the express lanes and from around Mavis Rd. in the collector lanes.  

This past weekend, traffic in the area was re-routed due to temporary Hwy. 401 westbound ramp closures at Mavis and Mississauga Rds. in addition to Winston Churchill Blvd.  

Those ramps reopened yesterday. 

Motorists can expect delays on and off as highway construction continues into 2022.  

The $640-million Hwy. 401 expansion project, which began construction in 2019, includes the widening of 18 kilometres of the 401 from Mississauga to Milton. 

It also includes reconstruction of bridges as well as upgrades to support facilities and features. 

The expansion is expected to be completed by 2022. 

Once completed, the Ontario government says the expanded highway will include: 

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

West Corridor Constructors was awarded the contract to design, build and finance the Hwy. 401 expansion project. 

Some 250,000 vehicles travel on Hwy. 401 in Peel and Halton each day.  


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