Highway 15
Work on the de la Savane St. overpass will close the Décarie Expressway completely southbound, from Highway 40 to Jean-Talon St., from 11:59 p.m. Friday to 5 a.m. Monday. Suggested detour is via Highway 13.
The de la Savane St. overpass is also closed during this time. Overpasses at Ferrier St. and des Jockeys St. will be closed overnights — 11:30 p.m. Friday to 8 a.m. Saturday, 10:30 p.m. Saturday to 8 a.m. Sunday, and 10:30 p.m. Sunday to 8 a.m. Monday.
Northbound Highway 15 remains open, as does Décarie Blvd. in both directions.
Highway 20
Work to renovate the intersection of Harwood Blvd. and Bellemare St. begins Sunday night and will continue until August. The work will involve partial and complete closures overnight between Route 342 and Ranger Ave., and narrow 3.2-metre lanes and a 40 km/h speed limit otherwise. Detours will be set up using Chicoine St.
Highway 40
The westbound exit for Highway 520 is closed from 11:59 p.m. Friday to 5 a.m. Monday.
In Senneville, the eastbound exit for Anciens-Combattants Blvd. is closed from 11 p.m. Friday to noon Saturday.
Bell Centre area
The are bordered by Peel St., René-Lévesque Blvd., de la Montagne St. and Canadiens-de-Montréal Ave. will be closed to traffic Sunday from 1 p.m. until after the Canadiens-Sabres game for an outdoor watch party.
St-Antoine St.
The street will be completely closed between Gosford St. and Guy-Frégault St. from 11:59 p.m. Friday to noon Monday, though a lane will remain open for traffic coming off Route 136.
Continuing disruptions
REM: Trains leaving Brossard have two alternating destinations — Deux-Montagnes and Bois-Franc. The latter trains will continue to Anse-à-l’Orme station when that branch opens on May 18. Display boards at the stations indicate the destinations of each train (those that say they go to Anse-à-l’Orme will disembark all passengers at Bois-Franc, who can take the next train toward Deux-Montagnes to continue down the line).
Highway 10: Eastbound Exit 3 for Carrie-Derick St. is permanently closed as part of the rebuilding of the Bonaventure.
Highway 19 (Papineau-Leblanc Bridge): Two lanes are open on the bridge between Montreal and Laval in each direction, with partial or complete closings on some nights until the end of 2026.
Highway 40 (Île-aux-Tourtes Bridge): The bridge is down to five lanes — two toward Montreal and two toward Vaudreuil-Dorion, with a fifth lane alternating directions (toward Montreal from midnight to 10 a.m. weekdays and toward Vaudreuil-Dorion from noon to 10 p.m. weekdays and all weekends and holidays).
Highway 520: Work on the overpass over 43rd Ave. will divert traffic to the service roads until end of May.
Jean-Talon St.: Work on building the Blue Line métro extension means parts of Jean-Talon St. are closed. Affected buses (in particular 141, 188 and 372) are detoured onto Bélanger and Everett Sts. to avoid those areas, and a temporary shuttle bus (No. 814) has been established along Jean-Talon and Bélanger Sts.
Ste-Catherine St. (Ville-Marie): Major work on the street and underground infrastructure means it is closed between St-Mathieu and Mackay Sts., and between de la Montagne and Peel Sts. Crossing streets are also blocked. Guy St. is closed at Ste-Catherine St.
Berri St. (Ville-Marie): Major work at the Berri-UQAM métro station has resulted in Berri St. being closed between Ste-Catherine and Ontario Sts., and de Maisonneuve Blvd. being closed between St-Denis and St-Hubert Sts. until November 2027. Traffic is detoured via St-Hubert, Atateken, St-Urbain or Ontario Sts., or René-Lévesque Blvd., while cyclists are being diverted to Atateken and Ontario Sts. STM buses 30 and 50 have been cut short to avoid the area, and express bus 427 has been suspended, with additional departures added to the 27 bus on St-Joseph Blvd. in the Plateau. For more information, visit stm.info.
Viger Ave. (Ville-Marie): Two of three lanes are closed westbound between Clark and Côté Sts. until May 18.
Pie-IX Blvd. (Mercier—Hochelaga-Maisonneuve): 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.
St-Urbain St. (Ville-Marie): The overpass over the Ville-Marie Expressway is closed for a long renovation until the end of 2026. Pedestrian access is maintained. One of two lanes is also closed between de la Gauchetière St. and Viger St. until May 18, but the bike lane remains open.
De Chateaubriand Ave. (Rosemont—La Petite-Patrie): Closed until the end of June for sewer work between Jean-Talon and Bélanger Sts.
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