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Québec 511 > Road Conditions > By Region and by Road > Route 340

Route 340

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

Montérégie

Sorel-Tracy - Saint-Ignace-de-Loyola: Ferries from Saint-Ignace-de-Loyola depart on the hour and from Sorel-Tracy at half past the hour until mid-November. Cause: 1 ferry in operation. Visit the Société des traversiers du Québec website. Ferry service : Open.

October 17, 2025
at 6:07 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.

340

À Saint-Lazare Boulevard de la Cité-des-Jeunes Entre le chemin de la Petite-Rivière et la montée Labossière

Hindrance
Major

Direction
West and east

From September 1, 2025 at 10 p.m.
to October 31, 2025 at 10 p.m.