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
Closure R-207 In Kahnawake, from Monday to Friday between 5:30 a.m. and 9:00 a.m., NORTHBOUND, undetermined period, detour A30 EST, A730 NORD, R132 OUEST. Reason : Roadwork. November 12, 2025
at 9:30 a.m.
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  

From :  Rivière-Beaudette, Ontario border

To : Les Cèdres, chemin Saint-Dominique

Roadway
Bare and Wet
Visibility
Good
20  

From :  Les Cèdres, chemin Saint-Dominique

To : Junction of highways 20 and 30 in Vaudreuil-Dorion

Roadway
Bare and Dry
Visibility
Good
20  

From :  Junction of highways 20 and 30 in Vaudreuil-Dorion

To : L'Île-Perrot

Roadway
Bare and Dry
Visibility
Good
20  

From :  Samuel-De Champlain Bridge Rive-Sud

To : Junction of highways 20 and 25 in Longueuil

Roadway
Bare and Dry
Visibility
Good
20  

From :  Junction of highways 20 and 25 in Longueuil

To : Sainte-Julie

Roadway
Bare and Dry
Visibility
Good
20  

From :  Sainte-Julie

To : Mont-Saint-Hilaire

Roadway
Bare and Wet
Visibility
Good
20  

From :  Mont-Saint-Hilaire

To : Sainte-Hélène-de-Bagot

Roadway
Bare and Wet
Visibility
Good
Montréal
Closure A-520 between A-20 and A-40, WESTBOUND and EASTBOUND, Montréal, From December 14, 2025 at 7 p.m. to December 15, 2025 at 4 a.m., detour Voie de desserte. Reason : Snow removal. December 12, 2025
at 3:48 p.m.
Closure R-207 In Kahnawake, from Monday to Friday between 5:30 a.m. and 9:00 a.m., NORTHBOUND, undetermined period, detour A30 EST, A730 NORD, R132 OUEST. Reason : Roadwork. November 12, 2025
at 9:30 a.m.
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  

From :  L'Île-Perrot

To : Dorval

Roadway
Bare and Dry
Visibility
Good
20  

From :  Dorval

To : Turcot Interchange

Roadway
Bare and Wet
Visibility
Good
20 
1 lane closed out of 2, Slow-moving traffic A-20 towards R-136 EASTBOUND, EASTBOUND, Montréal, undetermined period. Reason : Accident. December 15, 2025
at 11:33 p.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.
20  

From :  Sainte-Hélène-de-Bagot

To : Drummondville

Roadway
Partly Snow Covered
Visibility
Good
20  

From :  Drummondville

To : Sainte-Eulalie

Roadway
Partly Snow Covered
Visibility
Good
20  

From :  Sainte-Eulalie

To : Saint-Louis-de-Blandford

Roadway
Bare and Dry
Visibility
Good
20  

From :  Saint-Louis-de-Blandford

To : Villeroy

Roadway
Bare and Dry
Visibility
Good
Chaudière-Appalaches
Closure of pont de Québec between Lévis and Québec City.

In both directions:
- From Sunday, December 14th to Thursday, December 18th, 2025 between 7 pm and 5:30 am the next day.

Detour: pont Pierre-Laporte.
Cause: Construction work.
December 14, 2025
at 11:14 a.m.
L'Isle-aux-Grues - Montmagny: Air service is available. Visit the Société des traversiers du Québec website. Ferry service : Closed. December 8, 2025
at 6:12 a.m.
20  

From :  Villeroy

To : Lévis Saint-Nicolas sector

Roadway
Partly Snow Covered
Visibility
Good
20  

From :  Lévis Saint-Nicolas sector

To : Lévis, route Lallemand

Roadway
Bare and Wet
Visibility
Good
20  

From :  Lévis, route Lallemand

To : Saint-Michel-de-Bellechasse

Roadway
Bare and Dry
Visibility
Good
20  

From :  Saint-Michel-de-Bellechasse

To : Cap-Saint-Ignace

Roadway
Bare and Dry
Visibility
Good
20  

From :  Cap-Saint-Ignace

To : La Pocatière

Roadway
Bare and Dry
Visibility
Good
Bas-Saint-Laurent—Gaspésie—Îles-de-la-Madeleine
20  

From :  La Pocatière

To : Saint-Pascal

Roadway
Bare and Dry
Visibility
Good
20  

From :  Saint-Pascal

To : Rivière-du-Loup

Roadway
Bare and Dry
Visibility
Good
20  

From :  Rivière-du-Loup

To : Junction of highway 20 and route Notre-Dame-des-Neiges

Roadway
Bare and Dry
Visibility
Good
20  

From :  Rimouski Le Bic sector

To : Rimouski, montée Industrielle-et-Commerciale

Roadway
Bare and Dry
Visibility
Good
20  

From :  Rimouski, montée Industrielle-et-Commerciale

To : Mont-Joli

Roadway
Bare and Dry
Visibility
Good