Roadwork planned for April 17 – 21 2017

Signature on the Saint-Lawrence wishes to inform road users that, as part of the construction work for the new Champlain Bridge, a series of disruptions is planned over the coming days.


Wednesday, April 19

Île-des-Soeurs sector

  • Closure of the left lane on the Hwy-15 South on the bypass Île-des-Soeurs bridge from 10pm to 5am
  • Complete closure of the Hwy-15 South access from René-Lévesque boulevard from 10pm to 5am :



Thursday, April 20

Atwater Sector

  • Alternating closure of the LaSalle / D’Argenson street under the Hwy-15 from 8am to 6pm 


From March 13 to May 1st, 2017 : Marc-Cantin Street access ramp closed

As part of the reconfiguration work on the Gaétan Laberge interchange, Signature on the Saint Lawrence will be completely closing the Marc-Cantin Street access ramp at exit 4 of Hwy‑10 East from March 13 to May 1st, 2017.

More information :

Fermeture Bretelle Acces Rue Marc-Cantin - Sortie 4 - A10


Drivers are encouraged to check our website and to follow us on Twitter @nouv_champlain for the latest information on the traffic disruptions.

We also strongly urge drivers to check the MTQ website before setting out or to follow the MTQ on Twitter @Qc511_Mtl for information on all disruptions in the Greater Montreal road network.

Public transit users can visit the STM website to see the impact on their route and bus stops.