Careers
TO REGISTER
Contact Us
Estimated time to cross the structure

The Honoré Mercier Bridge is co-managed by the provincial government (MTQ) and JCCBI.

Traffic flow indicators show the estimated time it takes to cross the structure. The zones highlighted in blue on the map are the responsibility of JCCBI.

For MTMD hindrances, we invite you to consult Québec511.
Honoré Mercier Bridge
Toward Montréal:
Toward South Shore:
No hindrance in progress
TO REGISTER

Planned hindrances

Thu
04 Jun
entrave
Fri
05 Jun
entrave
Sat
06 Jun
entrave
Sun
07 Jun
entrave
Mon
08 Jun
Tue
09 Jun
Wed
10 Jun
Thu
11 Jun
Fri
12 Jun
Sat
13 Jun
Sun
14 Jun
Mon
15 Jun
Tue
16 Jun
Wed
17 Jun
1 lane opened counterflow
From June 5, 11:00 pm to June 8, 5:00 am One lane open against-traffic on the central section of the bridge See detour map
1 lane opened counterflow
From June 5, 11:00 pm to June 8, 5:00 am One lane open against-traffic on the central section of the bridge See detour map
1 lane opened counterflow
From June 5, 11:00 pm to June 8, 5:00 am One lane open against-traffic on the central section of the bridge See detour map
1 lane opened counterflow
From June 5, 11:00 pm to June 8, 5:00 am One lane open against-traffic on the central section of the bridge See detour map

Work advisories

BLITZ CANCELED - Honoré Mercier Bridge - AVOID THE AREA | Major work blitz - Closure of several access and…
+ info
REMINDER AND UPDATE: Honoré Mercier Bridge | One lane open against-traffic on the central section of the…
+ info
1 / 1
Honoré Mercier Bridge

Honoré Mercier Bridge

The Honoré Mercier Bridge, which is co-managed by the provincial government and JCCBI, serves as an example for collaboration with the Mohawk Council of Kahnawà:ke and the expertise of Mohawk contractors. The Bridge crosses the St. Lawrence River and the seaway, on the west side of the Island of Montreal.

Learn More History

Other structures

Jacques Cartier Bridge
Bonaventure Sector
Melocheville Tunnel
Original Champlain Bridge

Normal traffic lane configuration

Weekdays

Mornings from 5:30 a.m. to 9:30 a.m.

  • Continuously: one lane open from Châteauguay
  • Alternating (traffic lights): one lane open from Châteauguay or from La Prairie
  • Two lanes open towards the South Shore

Daytime, evenings, nights, and weekends 

  • Two lanes open towards the South Shore
  • Two lanes open towards Montreal (one from Châteauguay and one from La Prairie)

Traffic is managed by the provincial government.

Discover the Honoré Mercier Bridge
Normal traffic lane configuration

Latest news

See all the news
2
Work, inspections and studies on the Québec Bridge: an update from JCCBI
Work, inspections and studies…
14 May 2026
This morning, at a media briefing in Québec City, The Jacques Cartier and Champlain Bridges Incorporated …
Read more
3
Coexisting harmoniously with wildlife at our worksites
Coexisting harmoniously with…
2 June 2026
On May 1, during work to reconstruct the P-113 Bridge and rehabilitate the approaches to the Melocheville…
Read more
4
Héritage Champlain: An Exceptional Riverfront Pathway Now Open
Héritage Champlain: An…
2 June 2026
The Héritage Champlain Pathway is now open to the public. Shoreline development carried out by JCCBI has been…
Read more
See all the news
Go to top