The La Fontaine Tunnel will be closed overnights, and the Mercier Bridge is down to one lane again.
The Ville-Marie Expressway (Route 136) will be completely closed eastbound for the second weekend in a row. The La Fontaine Tunnel will be closed overnights, and there are disruptions on Highway 40 and at the Mercier Bridge. Here are the details:
Route 136
Highway 40
The east and west service roads near the Décarie Interchange will require lane closures all weekend, from 10 p.m. Friday to 5 a.m. Monday. Eastbound, one lane will be closed between Devonshire Rd. and the U-turn for Highway 40 west, and the U-turn itself will be closed. Westbound, the entrance to Highway 40 from Marcel-Laurin Blvd. will be closed, as will Authier St.
Route 138
Highway 25
REM
Continuing disruptions
- Métro: The discovery of a structural issue has forced the closure of the St-Michel station on the Blue Line until further notice. A bus, Line 809, shuttles users between Jean-Talon and d’Iberville stations during the métro’s opening hours.
- 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 November, 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.
- 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:
- The ramp from Highway 13 North to Highway 520 East is closed until Oct. 26.
- The westbound service road is closed between Ness and Griffith Sts. until next week, and the eastbound one between Merizzi and Hickmore Sts. for about two weeks. The ramp from Hickmore to Highway 520 east will be closed from Oct. 23 for about a week. Hickmore St. itself remains closed under the highway, and a free shuttle is available 24/7 to carry pedestrians and cyclists across the highway.
- Lanes are closed at 43rd Ave. until December.
- 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. Cross-streets between de Rouen and Ste-Catherine Sts. are closed at Pie-IX.
- 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.