The Montreal area will experience multiple road closures this weekend, July 11-12, 2026, due to ongoing construction and maintenance projects. Drivers are advised to plan alternate routes and expect delays.
Major Highway Closures
Autoroute 40 (Metropolitan Boulevard) will be closed in both directions between Boulevard Saint-Laurent and Avenue Papineau from 11 p.m. Friday to 5 a.m. Monday. The closure allows for bridge repairs and resurfacing work. Detours will be in place via Rue Jean-Talon and Rue Sherbrooke.
Autoroute 15 (Décarie Expressway) southbound will be reduced to one lane between Rue de la Savane and Rue Saint-Jacques from 10 p.m. Friday to 5 a.m. Monday for drainage improvements. Northbound lanes remain open.
Street Closures in Downtown Montreal
Rue Sainte-Catherine will be closed between Boulevard Robert-Bourassa and Rue de la Montagne from 6 a.m. Saturday to 6 p.m. Sunday for the Montreal International Jazz Festival setup. Local access only for businesses and residents.
Rue Sherbrooke will be closed between Rue Saint-Urbain and Rue de Bullion from 8 a.m. to 6 p.m. Saturday for a community event.
Bridge and Tunnel Impacts
The Louis-Hippolyte-LaFontaine Tunnel (Autoroute 25) will have alternating lane closures from 9 p.m. Friday to 5 a.m. Monday for electrical maintenance. At least one lane in each direction will remain open.
The Jacques Cartier Bridge will have intermittent closures of the bike path from 7 a.m. to 7 p.m. Saturday and Sunday for repairs. Cyclists should use the Champlain Bridge bike path as an alternate.
Public Transit Adjustments
STM bus routes 24, 55, and 80 will be detoured due to road closures. Metro service remains normal. Riders are advised to check the STM website for updated schedules.
According to Transport Quebec, these closures are necessary for infrastructure upgrades and safety improvements. Motorists should allow extra travel time and consider using public transit.
