It looks like Highway 401 between Milton and Mississauga has finished its expansion.
In a release, the Ontario Government says that an 18 kilometre stretch between the two Greater Toronto Area communities has been expanded with additional lanes. The move was done to fight gridlock within the golden horseshoe.
“Highway 401 is the busiest and most congested highway in North America with approximately 180,000 vehicles on average per weekday from Credit River in Mississauga to Regional Road 25 in Milton,” said Caroline Mulroney, Minister of Transportation. “Widening Highway 401 is another step forward in our government’s plan to build Ontario with investments in our transportation system to reduce gridlock, improve economic productivity and get drivers home to their loved ones faster.”
The new lanes double or nearly double the previous six-lane Highway 401 and include:
- a 12-lane core-collector system from the Credit River to Winston Churchill Boulevard
- 10 lanes from Winston Churchill Boulevard to the Highway 407 ETR/Highway 401 interchange
- a 12-lane core-collector system from Highway 407 ETR/Highway 401 interchange to east of the James Snow Parkway
- 10 lanes from the James Snow Parkway to west of Regional Road 25
- one new median High Occupancy Vehicle (HOV) lane in each direction
- an additional 50 spaces at the existing Mississauga Road carpool lot (now open)
- nine new, replaced or widened bridges












