Forty-two large‑scale construction projects are slated to begin on the Greater Montreal road network this autumn, officials say. The wave of work, scheduled for the fall season of 2026, will affect traffic throughout the region as crews tackle a broad array of upgrades and new builds across the metropolitan area.

Transportation planners have indicated that the projects will be distributed across the city’s main arteries and secondary routes, meaning drivers can expect alterations to normal travel patterns. While exact start dates for each site have not been disclosed, the collective effort is set to commence as the leaves turn, with the aim of completing the work before the winter months.

Commuters are being advised to anticipate possible lane closures, detours and slower travel times as the construction progresses. The scale of the undertaking, encompassing forty‑two separate sites, suggests a significant amount of equipment and personnel will be present on the streets, potentially leading to congestion during peak periods.

Local authorities have highlighted the importance of the projects for the long‑term functionality of the road network. By addressing structural deficiencies and expanding capacity, the work is intended to improve safety and reduce travel times once completed. In the short term, however, motorists should plan for additional travel time and stay informed of specific disruptions as they are announced.

The coordinated effort reflects a broader strategy to modernise infrastructure across the Greater Montreal region. By concentrating the construction phase within the autumn months, planners hope to minimise the impact on winter travel conditions and allow for a smoother transition into the colder season.

Residents and visitors alike are encouraged to monitor official channels for updates on individual project locations and any temporary traffic measures that may be implemented throughout the fall of 2026.