The City of Mississauga held a groundbreaking ceremony marked the start of construction of the Ninth Line Road Widening project, which will improve a 6.7-kilometre section of the road from Eglinton Avenue West to Derry Road West.
“Today’s groundbreaking marks real progress for Mississauga. The Ninth Line area continues to be an important part of Mississauga’s future, and this project reflects the value of strong partnerships and a shared commitment to getting things done. Thanks to the Government of Ontario for their support, which is helping municipalities deliver the core infrastructure needed to enable new housing and protect existing communities.” said Mississauga Mayor Carolyn Parrish.
Construction is expected to be finished in 2027. Construction is now underway on key upgrades that will widen the road, add space for walking and biking, improve transit stops and reduce the risk of flooding. These important updates will help people travel more safely, comfortably and conveniently while preparing the area for future growth. Once complete, the improvements will reduce congestion, support all road users and help the road handle heavy rain, making daily trips more reliable as the community continues to grow.
“We are building road infrastructure for more than just drivers in their cars, but to also support pedestrians, cyclists and transit riders. This project is also aligned with our Vision Zero framework with the long-term goal of zero traffic-related fatalities and serious injuries in our city. This type of muti-modal infrastructure highlights how community feedback and a robust planning process can make an impact for those travelling along this major corridor, now and in the future,” said Sam Rogers, Commissioner, Transportation and Works
The project includes several key improvements:
- Widening the road from two lanes to four lanes, with two lanes in each direction to reduce congestion and improve traffic flow during peak travel times.
- Adding sidewalks, curbs and gutters, along with cycle tracks behind the roadway curb to create safer routes for families, students and people walking or biking in the area.
- Improving storm drainage to help reduce flooding on the road during heavy rain, improving safety and reliability.
- Adding new street lighting, transit stops, intersections and traffic signals to create safer streets.
- Improving access to make it easier and safer for residents to access nearby parks, trails and Osprey Marsh.
- Enhancing the culvert bridge with better waterproofing and a wider road to reduce the risk of flooding during storms.

Rendering of completed Ninth Line improvements. Conceptual rendering only. Final design subject to change. (City of Mississauga)
Through this project, the City of Mississauga will enable more than 3,400 housing units.
The project will also help turn Mississauga’s last remaining greenfield into a well connected, transit-friendly and sustainable neighbourhood.
The project is partly funded by the Government of Ontario’s $20 million investment through the Municipal Housing Infrastructure Program’s Housing-Enabling Core Servicing Stream (MHIP-HECS). The MHIP helps municipalities build, maintain and repair local roads, bridges, culverts and water systems to enable new housing and protect existing homes from health and safety risks.
“Investing in local infrastructure is part of our government’s plan to protect Ontario, drive growth, create jobs and build stronger communities. The Ninth Line Widening project is part of our nearly $4 billion investment in the Municipal Housing Infrastructure Program (MHIP) that will enable over 800,000 new homes across Ontario. Once complete, this project will improve transportation across Mississauga while supporting the construction of more than 3,400 new homes,” said Todd McCarthy, Ontario’s Acting Minister of Infrastructure.
Featured image: Officials from the Ministry of Infrastructure, Members of Provincial Parliament, the City of Mississauga and project partners attend the Ninth Line Widening groundbreaking on June 8, 2026. (City of Mississauga)










