Also: Ramps closed near Champlain Bridge, Mercier Bridge down to one lane
The on-island part of the Réseau express métropolitain will be shut down all weekend for maintenance work, as will ramps near the Champlain Bridge in Brossard. Here are trouble spots to look out for:
REM
The Réseau express métropolitain will not run Saturday and Sunday between Gare Centrale and Panama stations for maintenance work. Shuttle buses will be available between Panama, Île-des-Soeurs and Gare Centrale stations.
Route 132
Mercier Bridge
The upstream span of the bridge will be closed from 10 p.m. Friday to 5 a.m. Monday to continue renovation work. Traffic will be down to one lane in each direction on the downstream span. The entrance from Airlie St. will be closed during this time.
Continuing disruptions
- Highway 10: The access to Highway 10 West (Bonaventure Expressway) from Nuns’ Island is closed until the end of November.
- Highway 15: In Candiac, the ramps from Highway 15 North to Highway 930 West and from Highways 15 South to 930 East are closed until December, and lanes are narrowed on both highways through the interchange.
- Highway 25: Half of the Louis-Hippolyte-La Fontaine Tunnel is closed as part of a long-term renovation project, with traffic sharing the remaining tunnel — one lane toward the South Shore and two lanes toward Montreal.
- Highway 40: The Île-aux-Tourtes Bridge is down to three lanes — one in each direction, and one lane that switches directions on weekdays. During weekends, the extra lane is for traffic to Vaudreuil-Dorion. Work on the Charles de Gaulle Bridge on the eastern end of the island will require overnight and weekend closures of lanes, entrances and exits on either side of the bridge.
- Route 117: In St-Laurent, two northbound lanes and one southbound lane are closed on Marcel-Laurin Blvd. between the Décarie Interchange and St-Louis St., for work by the city of Montreal until the end of the year.
- Route 136: The Guy St. exit eastbound is closed until Dec. 8.
- Route 338: In Vaudreuil-Dorion, Route de Lotbinière is closed between Chicoine St. and St-Jean-Baptiste Ave. for water and sewer infrastructure work until the end of November.
- Highway 520: Lanes are closed at Highway 13 and 43rd Ave. until December.
- Jean-Talon St.: Work on building the Blue Line métro extension will force parts of Jean-Talon St. to be closed. Affected buses (in particular 141 and 372) are detoured onto Bélanger and Everett Sts. to avoid those areas.
- St-Antoine St.: In the Sud-Ouest, the street is closed between du Couvent St. and Rose-de-Lima St., and traffic is reversed to go eastbound between Rose-de-Lima and Atwater Ave.
- Pie-IX Blvd.: Work to extend the SRB Pie-IX south means only one lane is open in each direction between Pierre-de-Coubertin Ave. and Notre-Dame St. All cross-streets are open to traffic.
- St-Urbain St.: The overpass over the Ville-Marie Expressway is closed for a long renovation, until the end of 2026. Pedestrian access is maintained.