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: 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 In Vaudreuil-Dorion and Senneville Félix-Leclerc Highway In both directions On the bridge of Île-aux-Tourtes 2 lanes traffic at all times Speed limit reduction: 70 km/h ----- Heavy vehicles prohibited in the right lane, in either direction -- 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 In Montreal and Mont-Royal Metropolitan Highway Westbound Access from the service road (De la Côte-de-Liesse Road) to Devonshire Road Complete closure From Monday 9 p.m. to Tuesday 5 a.m. Detour: upstream, via Décarie Boulevard South and Royalmount Avenue Closure of 1 lane out of 2 on the service road leading to Devonshire Road By default: Devonshire Road access to A-40 EAST is closed. Detour upstream via Royalmount Ave. and Décarie Blvd. N/B. Works: repair of structures
• 40 Maintenance work In Montreal on the Félix-Leclerc highway, between exit 65 (A-520 west, Ch. de la Côte-de-Liesse) and the access to Cavendish Boulevard In both directions complete closure, from Monday 11 p.m. to Tuesday 5 a.m. Detour via the service road By default: in the Décarie interchange, the ramp from A-15 north (Décarie) Detour: via the slip road for A-520 West and A-40 West service road.
• 40 Metropolitan Highway, near Lacordaire Boulevard In both directions Westbound closure of 2 out of 3 lanes from Tuesday 10:30 p.m. to Wednesday 5 a.m. Eastbound: 1 out of 3 lanes closed from Tuesday 10:30 p.m. to Wednesday 5 a.m.
• 40 Maintenance work In Montreal, at exit 76 (Boulevards Lacordaire, Viau and Pie IX) In both directions from Tuesday 10:30 p.m. to Wednesday 5 a.m. - Westbound: closure of 2 out of 3 lanes, - Eastbound: closure of 1 out of 3 lanes,
• 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
• 40 Works: securing the structure Between Montreal and Terrebonne (Lachenaie district), on Pont Charles-De Gaulle EASTBOUND Closure of 1 of 3 lanes From Monday 9 p.m. to Tuesday 6 a.m.

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 Trois-Rivières, at exit 196-N (Highway 55 North, boulevard des Chenaux, Shawinigan), on the overpass located above Highway 55. Eastbound Monday 7, Tuesday 8 and Thursday 31 July, between 8 p.m. and 6 a.m. the following day. Closure of exit 196-N (Highway 55 North, boulevard des Chenaux, Shawinigan). From Tuesday, July 8 to Wednesday, July 30 At all times. Traffic on diverted lanes. Detour via exit 196-S (Highways 40 East and 55 South, Trois-Rivières, downtown, Quebec), Highway 55 South, exit 183 (Boulevard Jean-XXIII), boulev
• 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 -From Monday, May 12 to Tuesday, September 16, at all times. Traffic on diverted lanes.
• 40 Culvert reconstruction In Saint-Maurice, Trois-Rivières, Champlain and Saint-Luc-de-Vincennes; between exit 210 (route 352, Saint-Maurice) and exit 220 (route 359, Champlain, Saint-Luc-de-Vincennes, Saint-Narcisse, Shawinigan). Heading East. Eastbound: Lane closures, contraflow traffic on the opposite carriageway, Monday to Friday, at all times. Eastbound - Lane width reduced to 4.8 meters. Eastbound - Lane width reduced to 4.8 meters.

Québec (Capitale-Nationale)

• Closure R-175 Closure of the rest area (belvédère de la Rivière Cachée), km 86, SOUTHBOUND, Secteur Lac-Jacques-Cartier, From July 1, 2025 at 7 a.m. to July 4, 2025 at 5 p.m.. Reason : Roadwork.
• 40 Public services In Donnacona, 2e Rang (boulevard des Écureuils): At all times - Closure of access to A-40 EAST for heavy vehicles Detour: 2e Rang NORTH
• 40 Drilling In Quebec, at avenue Blaise-Pascal In both directions Shoulder closure, Monday between 9 pm and 5 am the next day Rue Einstein Closed A-40 WEST access, Monday between 9 pm and 5 am the next day Detour: avenue Blaise-Pascal, avenue Le Gendre, rue Jules-Verne access
• 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) Monday June 30 between 7 pm and 5:30 am - Closure of 2 lanes out of 3 - Closed exit 310 (boulevard Saint-Jacques, A-740)
• 40 Asphalting In Quebec, exit 321 (boulevard Raymond) WESTBOUND Exit closed, Monday between 8 pm and 6 am the next day Detour: exit 320 (rue Seigneuriale), rue Clémenceau
• 40 Renovation of a bridge In Quebec, to A-40 WEST WESTBOUND Closure of 1 lane out of 2 at all times
• 40 Renovation of a bridge In Quebec, between A-440 Dufferin-Montmorency and boulevard Raymond WESTBOUND At all times - Closure of 1 lane out of 3 - Closure of exit 322 (boulevard des Chutes) Detour: exit 321 (boulevard Raymond) EASTBOUND At all times, until July 1st - Closure of 2 lanes out of 3 Clearance: 5.5 meters at boulevard des Chutes
• 40 Replacement of a bridge In Quebec, to A-40 EAST EASTBOUND At all times - Closure of 1 lane out of 2