Honoré-Mercier Bridge reduced to one lane in each direction from July 17 to Aug. 3
Posted June 25, 2026 1:44 pm.
Last Updated July 17, 2026 6:50 am.
The Honoré-Mercier Bridge will be reduced to one lane in each direction for a duration of two-and-a-half weeks this summer.
The bridge’s partial closure is scheduled for July 17 to Aug. 3.
Workers will be repairing part of a concrete slab on the bridge that links Montreal’s LaSalle to Kahnawake.
Detour routes will be marked with temporary signage.

Trucks with at least three axles will be prohibited from taking the bridge Monday to Friday during rush hour — between 5-9:30 a.m. toward Montreal, and between 3-7 p.m. toward the South Shore. Truckers are being asked to cross using the Samuel-De Champlain and Jacques-Cartier bridges.
A lane reserved for public transit will be operational longer for the duration of the work — from 5 a.m. to 8 p.m., seven days of the week.