Montreal Weekend Traffic Alert: Major Road Closures & Detours You Need to Know! (2026)

The upcoming weekend promises a chaotic commute for Montrealers, with a myriad of road closures and disruptions across the city's transportation network. From the Metropolitan Expressway to the Jacques-Cartier Bridge, residents and visitors alike are in for a challenging few days. Here's a breakdown of the closures and the potential impact on travel plans.

Metropolitan Expressway and Highway 40

The eastbound Metropolitan Expressway will be closed from 11:30 p.m. on Friday to 5 a.m. on Monday, between the exit for Highway 520 and the entrance from Highway 15 south (Laurentian Interchange). This closure is for repaving work, which is a necessary but disruptive measure. Traffic will be diverted to the service road, but congestion is expected, particularly during peak hours. The recommended detour involves taking highways 13, 440, and 15, which may also be congested due to the increased volume of traffic.

Highway 25 and Louis-Hippolyte-La Fontaine Tunnel

Highway 25 will be closed in both directions from 11 p.m. on Friday to 5 a.m. on Monday between Sherbrooke St. and Souligny Ave. The Louis-Hippolyte-La Fontaine Tunnel will also be closed in both directions from Sherbrooke St. to Île Charron during the same period. This closure is likely to significantly impact traffic flow in the area, especially for those commuting from the south.

Jacques-Cartier Bridge and Fireworks

The Jacques-Cartier Bridge, along with Notre-Dame St. east of it and the Ville-Marie Tunnel eastbound from de la Montagne St., will be closed from 8 p.m. on Thursday and Sunday for the city's annual fireworks competition. The Victoria Bridge will be one-way toward the South Shore on these evenings until 11:30 p.m. This closure is a regular occurrence and a beloved tradition, but it inevitably causes disruptions for those planning to cross the city.

REM Disruptions

The Réseau express métropolitain (REM) will start service later on weekends, beginning on Saturday at 7:30 a.m. and on Sunday at noon. Shuttle buses will be in effect for some stations, which is a positive development for those relying on public transportation. However, the delayed service may inconvenience some commuters who have planned their schedules around the earlier start times.

Ongoing Construction and Disruptions

Several highways and roads are currently undergoing construction, leading to ongoing disruptions. Highway 10 has a permanent closure at Exit 3 for Carrie-Derick St., while Highway 13 in Laval has southbound lane closures for renovation work. Highway 15 is also undergoing repaving work between Highway 40 and the Médéric-Martin Bridge to Laval, with overnight and weekend lane closures until 2027. The Papineau-Leblanc Bridge, Highway 20 (Vaudreuil-Dorion), and other roads also face partial or complete closures at various times.

Impact on Daily Commute

These closures and disruptions will undoubtedly affect the daily commute of countless Montrealers. The city's transportation network is already under strain, and these additional closures will likely lead to increased congestion and longer travel times. It is essential for residents to plan their routes and consider alternative modes of transportation during these periods.

Conclusion

The upcoming weekend's road closures and disruptions highlight the ongoing challenges in managing Montreal's transportation infrastructure. While some closures are necessary for maintenance and development, they often come at the cost of increased congestion and inconvenience for the public. As the city continues to grow and evolve, finding a balance between necessary improvements and minimizing disruption will be a key focus for transportation authorities.

Montreal Weekend Traffic Alert: Major Road Closures & Detours You Need to Know! (2026)
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