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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
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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.
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 
 À Drummondville et Saint-Germain-de-Grantham, entre la sortie 170 et la sortie 181. Hindrance
Major 		Direction
West and east 		From August 14, 2025 at 8:30 p.m.
to September 20, 2025 at 6:30 a.m.
20 
 À Drummondville, entre la sortie 175 (Route 143 Nord, Boulevard Lemire, Saint-Bonaventure, Saint-François-du-Lac) et la sortie 181 (Boulevard Foucault). Hindrance
Major 		Direction
East 		From August 24, 2025 at 8 p.m.
to September 20, 2025 at 6:30 a.m.
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
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. September 12, 2025
at 5 a.m.
20 
 Entre la route du Cap à Saint-Apollinaire et la R-171 à Lévis Hindrance
Major 		Direction
West and east 		From June 15, 2025 at 7 p.m.
to September 26, 2025 at 6 a.m.
20 
 À Lévis, à la hauteur du chemin des Îles Hindrance
Major 		Direction
East 		From August 19, 2025 at 8 p.m.
to September 29, 2025 at 5:30 a.m.
Bas-Saint-Laurent—Gaspésie—Îles-de-la-Madeleine
As part of the Pohénégamook – Picard – Saint-Antonin wind project and the Wolastokuk territory, non-standard transport will be operating in the Bas-Saint-Laurent region until the end of November 2025.

These transports of enormous pieces circulate day and night, between the port of Gros-Cacouna and Saint-Antonin on the A-20, the A-85, the R-191, the R-291, the Station and Roches roads and the Rivière-Verte road.

These transports also operate during the day between Matane and Saint-Antonin on the R-132, the A-20, the R-191, the R-291, the A-85, 6e Rang, route des Roches and chemin Champoux		 September 5, 2025
at 10:48 a.m.
20 
 À Saint-Alexandre-de-Kamouraska, de part et d'autre de la R-289 Hindrance
Major 		Direction
West and east 		From August 27, 2025 at 12 a.m.
to October 8, 2025 at 11:59 p.m.
20 
 À Notre-Dame-du-Portage, entre la côte de la Mer et l'A-85 Hindrance
Major 		Direction
West and east 		From August 8, 2025 at 6 p.m.
to September 26, 2025 at 11:59 p.m.