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Road Conditions
Current Warnings
Truck traffic prohibited pont Honoré-Mercier Passage PROHIBITED to heavy vehicles (three axles or more), Monday to Friday: towards Montreal (EAST), 5 a.m. to 9:30 a.m. and towards the South Shore (WEST), 3 p.m. to 7 p.m., WESTBOUND and EASTBOUND, From July 17, 2026 at 11 p.m. to August 3, 2026 at 5 a.m.. Reason : Roadwork.
Louis-Hippolyte-La Fontaine tunnel
Height clearance reduced to 4.3 meters since May 5, 2025. Recreational vehicles, among others, make sure to respect the height clearance before including the tunnel in your itinerary. .
Montréal
10
Repair of beams on the Clément bridge In Montreal, on the Clement Bridge WESTBOUND One out of two lanes closed at all times
13
Reconstruction of the overpass In Montreal, near Highway 520 In both directions Traffic will be diverted and narrowed at all times. Lane width reduced to 3.25 meters each
15
Securing structures In Mount Royal and Montreal, Décarie Expressway, between the interchange and Jean-Talon Street SOUTHBOUND Highway closed Detour Décarie Boulevard
19
Public services and maintenance In Montreal, between Gouin and Henri-Bourassa boulevards SOUTHBOUND Closure of 2 out of 4 lanes at all times
25
Refurbishment of structures Between Longueuil and Montreal, the Louis-Hippolyte-La Fontaine Tunnel In both directions NORTHBOUND tunnel closed, contraflow traffic in the SOUTHBOUND tunnel, at all times Clearance height: 4.3 meters
25
Refurbishment of structures In Montreal, on the service road, between Tellier and Notre-Dame streets Heading SOUTH One of the two lanes will be closed at all times.
25
Major renovation, Louis-Hippolyte-La Fontaine Tunnel In Montreal, exit 5 (Sherbrooke Street) SOUTHBOUND Exit closed Detour Exit 3, Notre-Dame Street, Curatteau Street
40
Île-aux-Tourtes Bridge Reconstruction Project In Senneville In both directions The Senneville Road turntable must be closed at all times. Senneville Road Detour
40
Between Midnight and 10 a.m. 3 lanes, EASTBOUND (Montreal) and 2 lanes, WESTBOUND (Vaudreuil-Dorion) Between Noon and 10 p.m. 3 lanes, WESTBOUND and 2 lanes, EASTBOUND Note: 2 lanes per direction during phase change WESTBOUND configuration will be maintained during weekends and holidays At all times: - Heavy vehicles are prohibited from using the right-hand lane - Overloaded vehicles prohibited
40
Road resurfacing In Pointe-Claire, on the service road, at the level of Saint-Jean Boulevard EASTBOUND Road Closed, Sunday between 8 p.m. and 5:30 p.m. the following day Detour Hymus Boulevard, Doyon Avenue
40
Securing structures In Montreal, at the Décarie Interchange, towards Highway 15 SOUTH EASTBOUND Access closed Detour Exit 68, Stinson Street, A-40 WEST service road, Devonshire Road, A-40 EAST service road Optional: upstream, exit 65 (A-520)
40
Securing structures In Montreal, Décarie Interchange, access to Highway 15 SOUTH WESTBOUND Access closed Detour Exit 65, A-40 East service road, Décarie Boulevard
40
Structural repair In Montreal, on the Metropolitan Highway, at the Lacordaire Boulevard intersection EASTBOUND Closure of 1 out of 3 lanes - Friday between 11 p.m. and 11 a.m. the following day - Saturday between 10 p.m. and 10 a.m. the following day - Sunday between 10 p.m. and 5 a.m. the following day
40
Structural repair In Montreal, on the Metropolitan Highway, at the level of the Lacordaire Boulevard WESTBOUND Highway closed - Saturday between 1 a.m. and 9 a.m. - Saturday between 11:30 p.m. and 8 a.m. the following day - Sunday between 11 p.m. and 5 a.m. the following day Detour Exit 76, service road
40
Structural repair In Montreal, on the Metropolitan Highway, in the service road, at the level of Lacordaire Boulevard EASTBOUND Road Closed - Friday between 11:59 p.m. and 8 a.m. the following day - Saturday between 11 p.m. and 8 a.m. the following day - Sunday between 10:30 p.m. and 5 a.m. the following day Detour: access tp Lacordaire Boulevard
40
Structural repairs, road maintenance In Montreal, at the level of Henri-Bourassa Boulevard EASTBOUND Highway closed Detour Exit 85, service road
40
Securing structures Between Montreal and Terrebonne (Lachenaie), on the Charles-De Gaulle Bridge EASTBOUND Closure of 1 out of 3 lanes
520
Reconstruction of the Cavendish Boulevard overpass In Montreal, access via Hickmore Street Heading East Access closed at all times Detour Temporary access to Barr Street
520
Reconstruction of the Cavendish Boulevard overpass In Montreal, exit 6 (Cavendish Boulevard) Eastbound Exit closed at all times Detour Exit 7 (Darnley Road), service road, Delmeade Road, Andover Avenue and Darnley Road
520
Reconstruction of the Cavendish Boulevard overpass In Montreal, at the Hickmore Street entrance EASTBOUND Closure of 1 of 2 lanes at all times.
520
Reconstruction of the Cavendish Boulevard overpass In Montreal, on the service roads, near Cavendish Boulevard In both directions Access roads closed at all times Detours EASTBOUND: Barr Street access, A-520 East, exit 7, Delmeade Road WESTBOUND: Isabey Street, A-40 EAST service road, A-520 WEST, exit 5 Local traffic permitted and contraflow traffic Isabey Street closed SOUTHBOUND
112
Dynamic lane management Between Montreal and Saint-Lambert, on the Victoria Bridge Monday to Friday during peak hours, both lanes are in one direction only: - From 5 a.m. to 9 a.m., towards Montreal (WEST) - From 3 p.m. to 7:15 p.m., towards the South Shore (East) - Outside of these hours, 1 lane per direction WARNING: Heavy trucks are prohibited from this bridge at all times
112
Dynamic lane management Between Montreal and Saint-Lambert, on the Victoria Bridge Special schedule, work on the Honoré-Mercier Bridge From July 20 to 24 and from July 27 to 31, Monday to Friday: - 2 lanes towards Montreal, from 5 a.m. to 10 a.m. - 2 lanes towards the South Shore, from 2:30 p.m. to 8 p.m. - Outside of these hours and on weekends, 1 lane per direction
117
Securing structures In Montreal, at the Décarie Interchange, access from Marcel-Laurin Boulevard to Highway 15 SOUTH SOUTHBOUND Access closed Detour A-40 EAST, Exit 68, Stinson Street, A-40 WEST service road, Devonshire Road Optional: upstream, access to the A-40 WEST service road
136
Repair of the overpass on Saint-Urbain Street In Montreal, in the Viger Tunnel, between Panet Street and Exit 5 (Robert-Bourassa Boulevard) WESTBOUND Closure of 2 out of 4 lanes, at all times
136
Repair of the overpass on Saint-Urbain Street In Montreal, in the Ville-Marie tunnel, between Robert-Bourassa and Saint-Laurent Boulevards EASTBOUND Closure of 2 out of 4 lanes, at all times
138
Structural repair Between Montreal and Kahnawake, on the Honoré-Mercier Bridge In both directions Contraflow traffic, 1 lane in each direction, at all times Lane width reduced to 3.2 meters Passage PROHIBITED to heavy vehicles (three axles and more), from Monday to Friday: - towards Montreal (EASTBOUND), between 5 a.m. and 9:30 a.m. - towards the South Shore (WESTBOUND), between 3 p.m. and 7 p.m.
Structural repair In Montreal, Lacordaire Boulevard, above Highway 40 In both directions One of three lanes will be closed at all times.
Refurbishment of the overpass on Saint-Urbain Street In Montreal, on Saint-Urbain Street, above Route 136 (Ville-Marie Highway) In both directions Road closed at all times Detour via Boulevard Saint-Laurent or Place Jean-Paul-Riopelle
Road resurfacing In Pointe-Claire, on Saint-Jean Boulevard, access to Highway 40 EAST NORTHBOUND Access closed, Sunday between 8 p.m. and 5:30 p.m. the following day Detour Brunswick and Des Sources Boulevards
Renovation of the Louis-H.-La Fontaine tunnel In Montreal, on Souligny Avenue, between A-25 and Honoré-Beaugrand Street Eastbound Closure of 1 out of 3 lanes at all times
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