Mercier Bridge

We wish to inform the public that the Chateauguay off ramp from the Mercier Bridge (Ramp 3) will be completely closed to traffic beginning within the next few days for a period of about four months. We should announce on Monday the official starting date of the work.

Châteauguay bound traffic will be directed to the La Prairie off ramp (Ramp 2) and then to a temporary two lanes wide detour road. Traffic will then pass under the bridge to allow access to Route 138 toward Châteauguay. Please consult the road map below.

This temporary detour will facilitate the work of the contractor, the Mohawk Bridge Consortium, to replace the deck of the off ramp with prefabricated concrete deck panels.

The above procedure will permit the contractor to work uninterruptedly so as to complete the work efficiently and restore the bridge ramp to users in a timely fashion.

Also please note that TRUCKS will not be able to use the temporary detour road with its U-turn and that they will be directed towards Highway 30 for their destination to Châteauguay during the road work.

Detour road to Châteauguay

U-turn – two lanes wide

Photos – Construction of the detour road