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Québec 511 > Road Conditions > By Region and by Road > Route 343

Route 343

Road Conditions Information on winter road conditions is updated once a day between 3 a.m. and 6 a.m. from October 15 to April 15 inclusive, and every time road conditions change.

Information on winter road conditions is updated once a day between 3 a.m. and 6 a.m. from October 15 to April 15 inclusive, and every time road conditions change.

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

Some informations are available in french only.

Minor hindrance

Major hindrance

Other informations

Warning

Trucks prohibited

Ferry

Border crossing

Current Warnings

	Louis-Hippolyte-La Fontaine tunnel roadwork: Contraflow traffic, 2 lanes towards Montreal and 1 lane towards the south shore. For details, consult the roadwork sites and geolocated warning distributed on interactive map.	December 22, 2022 at 9:40 a.m.
	Additional Information:
	Tunnel Louis-Hippolyte-La Fontaine
	Tunnel arrival time

Truck traffic prohibited Pont Papineau-Leblanc between Montréal and Laval, SOUTHBOUND and NORTHBOUND, undetermined period. Reason : Preventive measures.

October 25, 2022
at 11:10 a.m.

Thaw

Thaw period

From March 20, 2023
to May 19, 2023

Thaw period

From March 27, 2023
to May 26, 2023

Thaw period

From April 10, 2023
to June 9, 2023