Highway 13
In Laval, the south lanes will be closed for renovation work from Saturday until the fall, between Ste-Rose Blvd. and Highway 440. Southbound traffic will be rerouted to the service road, and during the morning rush hour (4-11 a.m.) a contraflow lane will be opened on the northbound side for southbound traffic. Additional lanes will be closed overnights during the summer.
Highway 20
In St-Mathieu-de-Beloeil, the eastbound entrance from Route 229 (Bernard-Pilon St.) will be closed from 9 p.m. Friday to 6 a.m. Sunday. Detour is to go west and turn around at Highway 30.
Highway 25
The Louis-Hippolyte-La Fontaine Tunnel will be closed from 11 p.m. Friday to 8 a.m. Saturday. Northbound the closing extends to Yves-Prévost Blvd., while southbound it starts at Sherbrooke St. Souligny Ave. will also be closed in both directions above the highway starting at 10:30 p.m.
Highway 30
In Brossard, westbound lanes will be closed at the interchange with Highway 10 from 10 p.m. Friday to 9 p.m. Saturday. Traffic will be diverted to the service road.
In Beauharnois, one of two lanes will be closed between Route 236 (Énergie Blvd.) and St-Louis Rd., from 6 a.m. to 8 p.m. Sunday.
Highway 40
In Repentigny, the highway will be repaved between the Benjamin-Moreau Bridge and Industriel Blvd. from Sunday until July 4, resulting in overnight lane closings and a lower speed limit. There will also be lane deviations near the Charles-De Gaulle Bridge starting Monday.
Route 116
In St-Bruno-de-Montarville, the westbound lanes will be closed over Highway 30 overnights, from 9 p.m. Friday to 8:30 a.m. Saturday, 8 p.m. Saturday to 9 a.m. Sunday, and 8 p.m. Sunday to 5 a.m. Monday. Detour is via the Highway 30 exit ramp that will rejoin Route 116. During the day on Saturday, only one lane will be open on the overpass, on its shoulder.
Route 136
The entrances to the eastbound Ville-Marie tunnel from Notre-Dame and de la Cathédrale Sts., and from Robert-Bourassa Blvd., will be closed from 10 p.m. Friday to 5 a.m. Monday for a water pipe inspection by the city.
Highway 640
The westbound Highway 40 exit for Highway 640 west will be closed overnights, from 9 p.m. Friday to 5 a.m. Saturday and from 9 p.m. Sunday to 5 a.m. Monday. Only one lane will be open on the westbound 640 between Highway 40 and Montée des Pionniers during these times.
Exit 50 westbound (Montée des Pionniers) will be closed from 9 p.m. Friday to 5 a.m. Monday.
Local streets
Cavendish Blvd. will be completely closed northbound at Dalton Rd. in Town of Mount Royal, from 10 p.m. Friday to 5 a.m. Monday, for work by Hydro-Québec. This will cut off access to Cavendish from eastbound Highway 520. Detour is a U-turn at Highway 40 or via McArthur and Griffith Sts.
Montée Champagne will be closed at Route 148 from 8 p.m. Friday to 7 p.m. Sunday. Detour is via the Highway 13 service road and St-Martin Blvd.
St-Patrick St. will be closed at Bridge St. in Pointe-St-Charles from 6 a.m. Saturday to 8 p.m. Sunday for work by Hydro-Québec
REM
The Réseau express métropolitain will start service at 7:30 a.m. on Saturday and Sunday for planned work.
Continuing disruptions
Highway 10: Eastbound Exit 3 for Carrie-Derick St. is permanently closed as part of the rebuilding of the Bonaventure.
Highway 15: Repaving work has begun on the Laurentian Autoroute between Highway 40 and the Médéric-Martin Bridge to Laval, which will involve overnight and weekend lane closings until the end of 2027.
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 20 (Vaudreuil-Dorion): Work to renovate the intersection of Harwood Blvd. and Bellemare St. continues until August. The work involves partial and complete closings 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 (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).
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 have been cut short to avoid the area. For more information, visit stm.info.
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. Ste-Catherine St. is blocked at Pie-IX, so traffic is rerouted via Notre-Dame St. until the end of June.
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.
De Chateaubriand Ave. (Rosemont—La Petite-Patrie): Closed until the end of June for sewer work between Jean-Talon and Bélanger Sts.
O’Brien St. (St-Laurent): Closed at Henri-Bourassa Blvd. until September for water main work.
