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.
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 9, 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 
À Manseau et Saint-Louis-de-Blandford, entre la sortie 235 (Routes 162 et 263, Lemieux / Princeville, Victoriaville, Saint-Louis-de-Blandford) et la sortie 243 (Route 218, Manseau, Sainte-Sophie-de-Lévrard, Saint-Pierre-les-Becquets). Hindrance
Major
Direction
West and east
From August 12, 2025 at 7 p.m.
to September 3, 2025 at 7 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
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 5, 2025 at 6 a.m.
Bas-Saint-Laurent—Gaspésie—Îles-de-la-Madeleine
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 
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.