Road Conditions

Laurentides—Lanaudière

Alternating traffic R-343 at height rivière L'Assomption, SOUTHBOUND and NORTHBOUND, Saint-Paul, undetermined period. Reason : Inspection.
Contraflow traffic rue Baby on the bridge, 1 lane in each direction. Lane width: 3.2 meters, WESTBOUND and EASTBOUND, Joliette, undetermined period. Reason : Inspection.
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. .
40 Road resurfacing In Repentigny, between Boulevard Industriel and Rue Valmont In both directions Road closed eastbound, contraflow traffic on the opposite carriageway Starting at 9 p.m., access to Boulevard Industriel will be closed. DETOUR: Valmont Street, A-40 WEST, Exit 96

Montérégie

Closure R-136 between rue de la Montagne and avenue Papineau, EASTBOUND, Montréal, From July 12, 2026 at 8 p.m. to July 12, 2026 at 11:59 p.m., detour on local network. Reason : Special events.
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. .
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

Montréal

Closure R-136 between rue de la Montagne and avenue Papineau, EASTBOUND, Montréal, From July 12, 2026 at 8 p.m. to July 12, 2026 at 11:59 p.m., detour on local network. Reason : Special events.
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. .
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 Construction of the new Île-aux-Tourtes bridge In Sainte-Anne-de-Bellevue and Senneville, between exit 41 and Senneville Road WESTBOUND Highway closed Detour service road
40 Road resurfacing In Pointe-Claire, on the service road, at the level of Saint-Jean Boulevard EASTBOUND Road Closed Detour via Boulevard Saint-Jean, Boulevard Hymus and Avenue Doyon
40 Road redevelopment In Pointe-Claire, on the service road, access to Boulevard des Sources EASTBOUND One out of two lanes closed at all times
40 Road resurfacing In Montreal and Mount Royal, between Cavendish Boulevard and the Laurentian Interchange EASTBOUND Highway closed continuously from Friday at 11:30 p.m. to Monday at 5 a.m. Detour Exit 65 and service road
40 Road resurfacing In Montreal, at the Décarie interchange, access from A-40 EAST to A-15 SOUTH (66-S) EASTBOUND Access closed Décarie Boulevard Detour
40 Road resurfacing In Mount Royal, at the Laurentian interchange, access from Highway 40 East to Highway 15 North (70) Heading East Access closed Detour Service Road
40 Structural repair In Montreal, between Langelier Boulevard and Highway 25 EASTBOUND Highway closed Detour Exit 78 and service road
40 Inspection In Montreal, between Langelier Boulevard and Highway 25 In both directions Closure of 1 out of 3 lanes
40 Structural repair In Montreal, between Saint-Jean-Baptiste and Henri-Bourassa boulevards In both directions Highway closed Friday between 11:59 p.m. and 7:00 a.m. the following day Saturday between 11:59 p.m. and 8:00 a.m. the following day Detour Exit 89 and service road
40 Securing structures Between Montreal and Terrebonne, the Charles-De-Gaulle bridge EASTBUND Closure of 1 out of 3 lanes

Mauricie—Centre-du-Québec

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. .
40 Asphalting In Trois-Rivières, between côte Richelieu and A-55 WESTBOUND Closure of 1 lane out of 2 Closure of access to A-55 NORTHBOUND - From Sunday, July 12 to Tuesday, July 14, between 8:30 p.m. and 6:30 a.m. the next day Detour: A-55 SOUTH, sortie 181 (R-138), boulevard du District, rue Charbonneau, boulevard Jean-XXIII
40 Asphalting In Trois-Rivières, to A-55 SOUTH (pont Laviolette) WESTBOUND Access closed - From Monday to Wednesday between 8:30 p.m. and 6:30 a.m. - Thursday between 9:30 p.m. and 6:30 a.m. - Sunday between 10 p.m. and 6:30 a.m. Detour: A-55 NORTH, exit 186 (boulevard des Chenaux), boulevard Saint-Jean
40 Bridge repair In Trois-Rivières, access from Boulevard des Chenaux EASTBOUND Access closed - Sunday between 9 pm and 6:30 am - From Monday to Wednesday between 7:30 pm and 6:30 am - Thursday between 8:30 p.m. and 6:30 am Detour: A-40 WEST, exit 199 (Trois-Rivières, downtown), A-40 EAST
40 Bridge repair In Trois-Rivières, between rue Laviolette and rue Des Ormeaux EASTBOUND Closure of 1 lane out of 2 or 2 lanes out of 3 Lane width reduced to 4.5 meters - Sunday between 9 p.m. and 6:30 a.m. the next day - From Monday to Wednesday between 7:30 p.m. and 6:30 a.m. the next day - Thursday between 8:30 p.m. and 6:30 a.m. the next day
40 Bridge repair In Trois-Rivières, between Rue Laviolette and Rue Sainte-Marguerite WESTBOUND Closure of 1 lane out of 3 at all times Lanes width reduced to 3.2 meters each
40 Structural inspection In Trois-Rivières, Boulevard des Récollets, at A-40 NORTHBOUND - Closure of 2 lanes out of 3, between 12 p.m. and 2 p.m. - Closure of 1 lane out of 2, between 2 p.m. and 3:30 p.m.
40 Bridge repair In Trois-Rivières, rue Bonaventure, at A-40 In both directions Traffic on narrowed lanes of 3.5 meters at all times
40 Structural inspection In Trois-Rivières, Boulevard des Récollets, at A-40 SOUTHBOUND - Closure of 2 lanes out of 3, between 8:30 a.m. and 10:30 a.m. - Closure of 1 lane out of 2, between 10:30 a.m. and 12 p.m.
40 Structural inspection In Trois-Rivières, Rue De La Vérendrye, at A-40 In both directions Alternating traffic
40 Bridge repair In Trois-Rivières, between Boulevard des Chenaux and Rue Sainte-Marguerite Heading west Closure of 2 out of 3 lanes, Friday between 9 p.m. and 9 a.m. the following day Lane width reduced to 5 meters
40 Bridge repair In Trois-Rivières, Exit 199 (Centre-ville) WESTBOUND Exit closed, Friday between 9 p.m. and 9 a.m. the next day Detour: Exit 198 (Boulevard des Récollets)
40 Structural inspection In Trois-Rivières, rue du Père-Daniel, at A-40 In both directions Alternating traffic
40 Structural inspection In Champlain, exit 220 (R-359) EASTBOUND Exit closed Detour: exit 229 (Sainte-Geneviève-de-Batiscan), R-361, A-40 WEST
40 Structural inspection In Champlain, at R-359 In one direction at a time Closure of 1 lane out of 2
40 Structural inspection In Champlain, exit 220 (R-359). WESTBOUND Exit closed Detour: exit 210 (Saint-Maurice), R-352 , A-40 EAST

Québec (Capitale-Nationale)

Des Neiges Wind Farm Project – South Sector, in the Saint-Tite-des-Caps area and in the Charlevoix region.

From the end of June to the end of October 2026, oversized transport vehicles will be circulating on the road network of the Quebec City, Capitale-Nationale, and Saguenay-Lac-Saint-Jean regions.

Be careful!
Rivière-du-Loup - Saint-Siméon: For updates on the status of the ferry service, please consult the ferry Website. Ferry service : Open.
40 Bridge repair In Deschambault-Grondines, at R-363 WESTBOUND Closure of 1 lane out of 2 at all times
40 Asphalt In Donnacona, at 2e Rang WESTBOUND Closure of 1 lane out of 2
40 Asphalt In Donnacona, Exit 274 (Donnacona) WESTBOUND Exit closed Detour: Exit 269, Rang Saint-Joseph, R-138
40 Bridge reconstruction In Québec, to A-73 Henri-IV NORTH EASTBOUND Access closed Wednesday between 8 pm and 5:30 am Detour: A-440 Charest EAST, A-740 NORTH
40 Bridge construction In Quebec, to A-73 Henri-IV SOUTH EASTBOUND Access closed Monday to Thursday between 11:30 pm and 5:30 am Detour: A-440 Charest, A-740
40 Construction of a bridge In Quebec, to A-73 Henri-IV NORTH EASTBOUND Access closed Detour: Einstein Street, A-440 WEST
40 Signalge elements In Quebec, between boulevard Saint-Jacques and A-73 Laurentienne In one direction at a time If necessary, depending on the progress of the work: - Shoulder closure - Closure of 1 lane out of 2 or 3 - Closure of 1 out of 2 lanes on the service road
40 Bridge reconstruction In Québec, access from rue Morand EASTBOUND Access closed Wednesday between 7 pm and 5:30 am Detour: - Light vehicles: boulevard Wilfrid-Hamel and A-740 NORTH - Heavy vehicles: boulevard Masson, boulevard Wilfrid-Hamel, A-740 NORTH or A-40 WEST, A-573 SOUTH, A-440 EAST, A-740 NORTH
40 Asphalt In Quebec, access from rue Jean-Perrin WESTBOUND Access closed Wednesday between 7 p.m. and 5:30 a.m. Sunday to Tuesday between 7 p.m. and 5:30 a.m. Detour: A-740, A-440
40 Asphalt In Quebec, access from Rue des Basses Terres WESTBOUND Access closed From Sunday to Wednesday between 7 p.m. and 5:30 a.m. Detour: avenue des Replats access
40 Asphalt In Quebec City, between Pierre-Bertrand Boulevard and Neuvialle Boulevard WESTBOUND Service road closed From Sunday to Tuesday between 8 p.m. and 5:30 a.m. Closure of 2 out of 3 lanes From Sunday to Tuesday between 9 p.m. and 5:30 a.m.
40 Asphalt In Quebec, to A-740 WESTBOUND Accesses closed From Sunday to Tuesday between 7 p.m. and 5:30 a.m. Detour: locla network
40 Asphalting In Quebec, between Pierre-Bertrand Boulevard and Neuvialle Boulevard WESTBOUND Highway closed Detour: service road
40 Asphalting In Quebec, exit 312 South (Pierre-Bertrand South Boulevard) WESTBOUND Exit closed Sunday to Wednesday between 7 p.m. and 5:30 a.m. Detour: local network
40 Bridge repair In Quebec City, exit 322 (boulevard des Chutes) WESTBOUND Exit closed at all times Detour: exit 321 (boulevard Raymond, rue Labelle ), rue Yves-Prévost, A-40 EAST
40 Bridge repair In Quebec City, between autoroute Dufferin-Montmorency and boulevard des Chutes WESTBOUND Closure of 1 lane out of 2 or 3 at all times