The widening of a main road in Mississauga’s west end to four lanes starts next week, city officials say, adding the major project will also “promote growth and allow more housing in the area.”
Expanding a 6.7-kilometre stretch of Ninth Line, between Derry Road in the north and Eglinton Avenue in the south, also includes plans for sidewalks and cycle tracks for bike riders, the City of Mississauga said earlier.
Work to widen the north-south roadway from its current two-lane configuration to four lanes (two in each direction) gets underway this coming Monday, the city said in a project update on Wednesday.
The city says the project also includes:
Adding curbs, gutters, sidewalks and cycle tracks.
Improving storm drainage, street lighting, transit stops, intersections and traffic signal infrastructure.
(Rendering: City of Mississauga/Ward 10 Coun. Sue McFadden newsletter)
Construction will begin in the south, at Eglinton Avenue, Ward 10 Coun. Sue McFadden said in an update to constituents earlier this spring.The councillor added that in addition to the extra lanes, new sidewalks and separated cycle tracks are also part of the project.
Work will begin on Ninth Line at Eglinton Avenue and then move north towards Derry Road with completion expected sometime in 2027, McFadden said, adding more information related to the contractor, lane closures and scheduling would soon be available.
The detailed design for the Ninth Line road-widening project was approved by city council in 2021 and more specifically includes:
Raised medians or centre left-turn lanes.
New traffic signals planned for Sunlight Street/Mahoney Gate, Tacc Drive, McDowell Drive and Beacham Street.
A new MiWay transit bus route.
The Ontario government has contributed $20 million to the city-led infrastructure project through the Housing-Enabling Core Servicing stream of its Municipal Housing Infrastructure Program, McFadden said in April.
Provincial government officials in addition to Mississauga city councillors and other project partners are expected to be on hand for the June 8 groundbreaking. It begins at 11 a.m.
An earlier community update from McFadden noted the project is expected to take at least 18 months to complete.
“There will be dust and noise, road and lane closures, and other traffic impacts and these will be communicated in advance of the related work as much as possible,” the November 2025 project update stated. “In general, residents and commuters are encouraged to plan for delays and/or consider alternate routes where possible.”
City officials have said a number of infrastructure upgrade projects across Mississauga, including the Ninth Line widening, are vital to the city’s future as “we’re building a safer, more efficient and better-connected city — one that respects our environment, supports our growth and meets the needs of our residents.”
(Photo: Mississauga Ward 10 Coun. Sue McFadden newsletter)
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