Road Conditions

Laurentides—Lanaudière

• 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 Works: replacement of culverts, Ruisseau de Feu In Terrebonne (Lachenaie) and Charlemagne, between Charles-De Gaulle Bridge and A-640 Traffic on diverted lanes at all times and dynamic lane management: 3 lanes WESTBOUND / Montreal and 2 EASTBOUND From 11:59 p.m. to 10 a.m. the next day, weekdays 3 lanes EASTBOUND / Quebec and 2 WESTBOUND From noon to 10 p.m., weekdays and weekends ----- Change of configuration, from Sunday to Friday between 10 a.m. and noon
• 40 Works: repair of the structure In Sainte-Geneviève-de-Berthierville and Saint-Cuthbert EASTBOUND Closure of exit 151 towards R-138 EAST, at all times Detour: via R-138 WEST, R-158 WEST, A-40 EAST, U-turn exit 155 and A-40 WEST / exit 151 Optional: continue A-40 EAST / Exit 155 Note: complete closure of the R-138 overpass spanning the A-40

Montérégie

• 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 Works: maintenance and reconstruction of the bridge In Vaudreuil-Dorion and Senneville (Island of Montreal), on the Île-aux-Tourtes bridge In both directions At all times: 3 lanes, EASTBOUND (Montreal) and 2 lanes, WESTBOUND (Vaudreuil-Dorion), between midnight and 10 a.m. 3 lanes, WESTBOUND and 2 lanes, EASTBOUND, between noon and 10 p.m. Note: 2 lanes during phase changes Maintaining the WEST configuration during weekends and holidays At all times: - Heavy vehicles are prohibited from driving in the right lane - Overloaded vehicles prohibited

Montréal

• 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 Works: painting In Montreal, between the Laurentides interchange and Acadie Boulevard Closure of 1 out of 2 lanes From Tuesday 10 p.m. to Thursday 5 a.m.
• 40 Work: repairing a sump In Montreal Heading WEST Closure of exit 73 (avenue Christophe-Colomb) From Wednesday 10 p.m. to Thursday 5 a.m. Detour: U-turn at exit 71 (Saint-Laurent Boulevard)
• 40 In Montreal Anjou Interchange On the ramp leading from A-40 WEST (exit 80-S) to A-25 SOUTH / Tunnel Channeling the track Closure of exit 6 (Beaubien Street, Yves-Prévost Boulevard) at all times for users coming from A-40 WEST Detour: via A-25 SOUTH and exit 5 towards Sherbrooke Street and Langelier Boulevard Track width reduced to 4.5 metres Works: renovation of the Louis-H.-La Fontaine Tunnel

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. .
• Work on the Laviolette Bridge will resume during weekday nights and sometimes on weekend nights until fall 2025.
  
  Check the roadworks in detail for information, including the planned times of the obstructions.
• 40 Structural repair In Maskinongé, between exit 155 (Saint-Barthélemy, Maskinongé) and exit 160 (Rang de la Rivière Sud-Est). In both directions At all times In both directions Closure of shoulders.
• 40 Drilling In Trois-Rivières, between Highway 55 and Boulevard des Chenaux. Heading East. -From Monday, September 15 to Thursday, September 18, between 8 p.m. and 5 a.m. the next day: Closure of one lane out of two. Closure of the center lane on the entry and exit ramps. -Thursday, September 18 and Friday, September 19: shoulder closures at all times.
• 40 Slab repair (Radisson Bridge) In Trois-Rivières, at the Radisson Bridge, located over the Saint-Maurice River, between exit 201 (boulevard des Chenaux) and exit 203 (route 157, boulevard Thibeau, Notre-Dame-du-Mont-Carmel, Shawinigan). In both directions Monday and Tuesday, between 7:30 p.m. and 7 a.m. the following day. Wednesday and Thursday, between 8 p.m. and 7 a.m. the following day. Friday and Sunday, between 9:30 p.m. and 7 a.m. the following day. -Wednesday, September 17 and Tuesday, September 23: Westbound. Lane closures, contraflow traffic on the opposite carriageway. Exits 202 and 201 closed. -Thursday, September 18 and Wednesday, September 24: Eastbound. Lane closures, contraflow traffic on the opposite carriageway. Exits 202, 203-S and 203-N closed. Detour Westbound - Exits 202 and 201: via Highway 40 West, exit 199 (Trois-Rivières, Downtown), Saint-Roch Street, Highway 40 East and exits 201 (boulevard des Chenaux) and 202 (boulevard des Estacades). Eastbound -Exit 202: via Highway 40 East, exit 205 (rue des Prairies), rue des Prairies, Highway 40 West and exit 203 (route 157, boulevard Thibeau, Notre-Dame-du-Mont-Carmel, Shawinigan) or exit 202 (boulevard des Estacades). Monday and Tuesday, between 7:30 p.m. and 7 a.m. the following day. Wednesday and Thursday, between 8 p.m. and 7 a.m. the following day. Friday and Sunday, between 9:30 p.m. and 7 a.m. the following day. Wednesday 17, Thursday 18, Tuesday 23, Wednesday 24 September Track width reduced to 4.5 meters.
• 40 Repair of structures (P-15623S and P-15623N) In Trois-Rivières, between exit 205 (Rue des Prairies) and exit 210 (Route 352, Saint-Maurice). In both directions In both directions Traffic on diverted lanes. Westbound Wednesday, September 17, between 8 p.m. and 7 a.m. the following day. Closure of one lane out of two. Track width reduced to 4.5 meters.
• 40 Asphalting Between exit 236 (Route 159, Sainte-Anne-de-la-Pérade, Saint-Prosper, Saint-Stanislas, Saint-Tite) in Sainte-Anne-de-la-Pérade and exit 229 (Route 361, Batiscan, Sainte-Geneviève-de-Batiscan) in Sainte-Geneviève-de-Batiscan. Westbound Thursday, September 18, between 8 p.m. and 7 a.m. the following day. Roadside work. From Sunday, September 21 at 8 p.m. to Friday, September 26 at noon. Complete closure of lanes, traffic in the opposite direction on the opposite carriageway.

Québec (Capitale-Nationale)

• Roadwork on pont Pierre-Laporte, NORTHBOUND, between Québec and Lévis, from September 14 to 18. Closure of 2 lanes out of 3, Sunday between 10 pm and 5 am the next day and from Monday to Thursday between 9 pm and 5 am the next day.
• Oversized shipments are being transported from the ports of Quebec City, Pointe-au-Pic in La Malbaie, and Grande-Anse in Saguenay to Saint-Tite-des-Caps as part of a new wind power project. These shipments of huge pieces will continue until the end of November 2025.
  
  The roads used by these transports are: A-40, A-73 Laurentienne, A-73 Henri-IV, A-440 Charest, A-740, R-136, R-138, R-362, R-175, A-70 and local roads.
  
  Be careful and patient!
• 40 Maintenance In Deschambault-Grondines, between the route Guilbault and the R-363 In one direction at a time Sunday to Thursday between 6 pm and 6 am the next day - Short-term closure of 1 lane out of 2
• 40 Maintenance In Neuville, between the R-365 and the route Gravel In one direction at a time Sunday to Thursday between 6 pm and 6 am the next day - Short-term closure of 1 lane out of 2 - Short-term closure of exit 285 (route Gravel)
• 40 Renovation of a bridge In Saint-Augustin-de-Desmaures, at chemin Girard EASTBOUND Closure of 1 lane out of 2, Monday to Wednesday between 8 am and 4 pm
• 40 Maintenance In Saint-Augustin-de-Desmaures, between R-367 and R-138 From Sunday to Thursday between 6 pm and 6 am the next day In one direction at a time - Short-term closure of 1 lane out of 2 - Short-term closure of exits 295 (R-367)
• 40 Maintenance In Quebec, at avenue Le Gendre In one direction at a time Sunday to Thursday between 10 pm and 5:30 am the next day - Short-term closure of 1 to 2 lanes out of 3
• 40 Maintenance In Quebec, at avenue Blaise-Pascal In one direction at a time Sunday to Thursday between 8 pm and 5:30 am the next day - Short-term closure of 1 to 2 lanes out of 3 - Short-term closure of exit 306 (avenue Blaise-Pascal)
• 40 Bridge reconstruction In Québec, between A-740 and A-573 WESTBOUND At all times - Traffic on diverted and narrowed lanes to 3.5 meters - Closure of 1 lane out of 2 in the service road EASTBOUND At all times - Traffic on 2 lanes (center and right) diverted and narrowed to 3.5 meters - Contraflow traffic on the opposite roadway (left lane) and reduced to 4 meters - Closure of exit 308 (boulevard Masson)
• 40 Maintenance In Québec, at avenue D'Estimauville In one direction at a time Sunday to Thursday between 10 pm and 5:30 am the next day - Closure of 1 to 2 out of 3 lanes
• 40 Replacement of a bridge In Quebec, to A-40 EAST EASTBOUND At all times - Closure of 1 lane out of 2