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  

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 Wet
Visibility
Good
20  

From :  Junction of highways 20 and 25 in Longueuil

To : Sainte-Julie

Roadway
Bare and Wet
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
Partly Snow Covered
Visibility
Fair
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. .
June 18, 2025
at 11 a.m.
20  

From :  L'Île-Perrot

To : Dorval

Roadway
Partly Snow Covered
Visibility
Good
20  

From :  Dorval

To : Turcot Interchange

Roadway
Partly Snow Covered
Visibility
Good
Mauricie—Centre-du-Québec
Moderate to severe weather conditions are expected until Tuesday morning in the areas surrounding the fleuve Saint-Laurent.

Snow and strong winds could reduce visibility in some areas and lead to slippery roads.

Be carefull if you must travel!
January 12, 2026
at 2:08 p.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 :  Sainte-Hélène-de-Bagot

To : Drummondville

Roadway
Snow Covered
Visibility
Fair
20  

From :  Drummondville

To : Sainte-Eulalie

Roadway
Snow Covered
Visibility
Fair
20  

From :  Sainte-Eulalie

To : Saint-Louis-de-Blandford

Roadway
Partly Snow Covered
Visibility
Good
20  

From :  Saint-Louis-de-Blandford

To : Villeroy

Roadway
Bare and Wet
Visibility
Good
Chaudière-Appalaches
Moderate to severe weather conditions are expected until Tuesday morning in the areas surrounding the fleuve Saint-Laurent.

Snow and strong winds could reduce visibility in some areas and lead to slippery roads.

Be carefull if you must travel!
January 12, 2026
at 2:08 p.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
Bare and Wet
Visibility
Good
20  

From :  Lévis Saint-Nicolas sector

To : Lévis, route Lallemand

Roadway
Bare and Dry
Visibility
Good
Snowdrifts
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 Wet
Visibility
Good
Bas-Saint-Laurent—Gaspésie—Îles-de-la-Madeleine
Moderate to severe weather conditions are expected until Tuesday morning in the areas surrounding the fleuve Saint-Laurent.

Snow and strong winds could reduce visibility in some areas and lead to slippery roads.

Be carefull if you must travel!
January 12, 2026
at 2:08 p.m.
Rivière-du-Loup - Saint-Siméon. Ferry service : Closed. January 4, 2026
at 4:47 p.m.
20  

From :  La Pocatière

To : Saint-Pascal

Roadway
Bare and Wet
Visibility
Good
20  

From :  Saint-Pascal

To : Rivière-du-Loup

Roadway
Partly Snow Covered
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