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Québec 511 > Trucking > Hindrances Related to Load and Size > Autoroute 20

Autoroute 20

Road Conditions
Roadway
Bare (dry or wet)
Partly snow covered, snow packed
or ice covered
Snow covered, snow packed
or ice covered
Visibility
Good
Fair
Poor
Roadwork
Minor hindrance
Major hindrance
Other informations
Warning
Trucks prohibited
Ferry
Border crossing
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. . 		June 18, 2025
at 11 a.m.
20 
 À Saint-Mathieu-de-Beloeil et Beloeil, entre les km 109 et 112 Hindrance
Major 		Direction
West and east 		From May 2, 2025 at 10 p.m.
to November 30, 2025 at 5:30 a.m.
20 
 Saint-Mathieu-de-Beloeil Sur l'autoroute Jean-Lesage Entre chemin du Ruisseau NORD et montée Saint-Jean-Baptiste (Entre les km 109 et 112) Hindrance
Major 		Direction
East 		From June 27, 2025 at 10 p.m.
to August 2, 2025 at 7 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. . 		June 18, 2025
at 11 a.m.
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.		 June 9, 2025
at 11:51 a.m.
Additional Information:
20 
 Closure A-20 Daveluyville stop, EASTBOUND, From July 4, 2024 at 6 p.m. to September 30, 2025 at 6 a.m.. Reason : Roadwork. February 28, 2025
at 2:09 p.m.
Chaudière-Appalaches
Closure R-263 between rue Lavoie and 6e Rang, SOUTHBOUND and NORTHBOUND, Disraeli, From July 12, 2025 at 12 p.m. to July 12, 2025 at 7 p.m., detour Rue Lavoie, avenue Champlain, R-263. Reason : Special events. July 9, 2025
at 8:46 a.m.
Québec - Lévis: No service from July 4 to July 13 inclusively. Visit the Société des traversiers du Québec website. Ferry service : Closed. July 8, 2025
at 3:57 p.m.
L'Isle-aux-Grues - Montmagny: Modified service for an undetermined period. Visit the Société des traversiers du Québec website. Ferry service : Open. July 4, 2025
at 11:13 a.m.
20 
 Entre la route Germain à Saint-Apollinaire et la R-171 à Lévis Hindrance
Major 		Direction
West 		From June 15, 2025 at 7 p.m.
to September 5, 2025 at 6 a.m.
20 
 À Saint-Vallier, entre le km 353 et le km 358 Hindrance
Major 		Direction
West and east 		From July 8, 2025 at 4 a.m.
to July 9, 2025 at 7 p.m.
Bas-Saint-Laurent—Gaspésie—Îles-de-la-Madeleine
Matane - Baie-Comeau: No service from July 4 to July 13 inclusively. Visit the Société des traversiers du Québec website. Ferry service : Closed. July 8, 2025
at 3:57 p.m.
Matane - Godbout: No service from July 4 to July 13 inclusively. Visit the Société des traversiers du Québec website. Ferry service : Closed. July 8, 2025
at 3:57 p.m.
Oversized cargo ships are operating between the port of Gros-Cacouna and Saint-Antonin as part of a new wind power project. These transports of immense pieces will continue until the end of November 2025.

The routes used by these transports are highways 20 and 85, routes 191 and 291 as well as local roads such as route de la Station, route des Roches and chemin de Rivière-Verte in Saint-Antonin, among others.

Be careful and patient!		 June 9, 2025
at 11:54 a.m.
20 
 Entre la route de l'Église Nord à Sainte-Hélène-de-Kamouraska et la R-289 à Saint-Alexandre-de-Kamouraska Hindrance
Major 		Direction
West and east 		From June 10, 2025 at 12 a.m.
to July 29, 2025 at 11:59 p.m.
20 
 Entre le km 506 à Rivière-du-Loup et le km 512 à Cacouna Hindrance
Major 		Direction
West and east 		From June 27, 2025 at 6:30 a.m.
to July 18, 2025 at 6:30 p.m.