Reconstruction work on the A10 between the abutment of the new Champlain Bridge and Pelletier Boulevard in Brossard

Signature on the St. Lawrence (SSL) recently began work on the reconfiguration of the highway corridor between the abutment of the new Champlain Bridge and Pelletier Boulevard in Brossard

Work in progress and to come

At first, Signature on the Saint Lawrence had to deviate the axis of the A10 towards the sector T to release the west direction of the A10. This work had to be done during weekends and at night to minimize the impact on mobility during the weekdays.

In the coming days, we will begin, for the red zone (see slide above), the demolition of the old A10 roadway to reconfigure the approach from Boulevard Pelletier to the abutment of the new Champlain Bridge. All along this area, a demolition of the roadway will take place for a few days, followed by the earthworks, drainage and compaction works, which will be spread over a few months. Pavement will be finalized this fall. The new configuration of the westbound HI-10 is planned for the opening of the new bridge in December 2018.

Work schedule

SSL intends to perform most of the work in the daytime, between 7: 00 am to 7: 00 pm, from Monday to Friday. However, some work may possibly occur in the evening and/or at night to avoid having to close roads during the day, thus causing major congestion. If any night work is performed, SSL will ensure that it observes these more stringent noise criteria during this time, with the implementation of mitigation measures if required. Note that the mobilization of the teams can begin before 7: 00 am, but the objective is always to avoid making the noisiest work before 7: 00 am, when possible.

Impacts monitoring – noise, air quality and vibrations

The noise is rigorously managed during the construction of the new Champlain Bridge. Signature on the St. Lawrence is required to meet the noise criteria included in the Project Agreement with the Government of Canada.  

In your residential area, SSL is allowed to work 24 hours a day, 7 days a week, if the following criteria are met :

  • From 7: 00 am to 7: 00 pm: 75 dBA;
  • From 7: 00 pm to 10: 00 pm: 67 dBA ;
  • From 10: 00 pm to 7: 00 am: 63 dBA ;

As some of these works are likely to generate dust, watering at the source will, when necessary, control them.

To make sure to comply with the noise and air quality standards, SSL regular monitors the noise and atmospheric emissions generated by construction work. Our Citizens’ Forum tab at our website has a Works and Impacts section presenting the noise reports as well as information gathered on air quality.

Some jobs carried out along the HI-10 are likely to generate vibrations in the ground. Monitoring specifically for these vibrations was put in place. Initially, equipment for measuring the vibrations had been placed around the work sites and frequent verifications will be done to ensure we are staying within the prescribed standards. If required, work techniques will be adapted to reduce the vibrations.

During the next days, experts from Géophysique GPR International INC. will conduct a preconstruction condition survey of the properties close to those works to determine their states before the work begins. This evaluation will include taking photos outside of the houses. If you are concerned by this inspection, one of their specialists will get in touch with you in the coming days.