Work usually takes place from Monday to Friday between 7 a.m. (with teams arriving on-site around 6:30 a.m.) and 7 p.m., sometimes extending to the weekend, at the same hours. The daytime noise threshold is 75 decibels (including saturday and sunday).
Please note that we may be forced to work evenings and nights, with greater restrictions on noise levels of 5 decibels above ambient noise (without construction). Work at these later hours is generally less noisy.
Should construction begin to have a major impact on daytime traffic, we may choose, by way of exception, to work evenings and nights, even though the work may be loud. Exceptionally, construction activities that exceed the nocturnal noise threshold despite the mitigation measures in place require an exemption from Infrastructure Canada with collaboration from the municipalities.
Signature on the Saint-Laurent is committed to respecting the noise levels agreed upon in its partnership agreement with the Government of Canada and, as such, will use mitigation measures whenever it becomes necessary.
Certain sensitive areas have been identified in Verdun and Le Sud-Ouest and have been determined based on planned construction activities. When the criteria are exceeded during the work, mitigation measures are put in place such as temporary noise barriers. The Environment team then performs follow-ups to ensure that the criteria are met. Signature on the St. Lawrence must respect the environmental requirements of its agreement with the Government of Canada, so yes, the standards will be met.
Signature on the Saint Lawrence use air quality monitoring stations that are located in strategic areas taking into account dominant winds, sensitive zones and the location of the worksites. These air quality monitoring stations measure the total particles and fine particles in the air.
Together with the Government of Canada, Signature on the Saint Lawrence is working closely with all the partners that have a role in coordinating work and traffic management. Among other groups, we are collaborating with Mobility Montréal, a grouping of major partners with a mandate to coordinate all major work, including the Turcot project, so as to minimize the impacts on citizens and increase safety and mobility.
Signature on the Saint Lawrence wants to minimize tree cutting. However, the construction of a large infrastructure project such as this one required the clearing of spaces to build the new bridges and road connections, worksite installations, etc. Tree cutting is overseen by the Environment Team that conducts a vegetation survey, ensures we have the proper tree cutting borough permits, relocate brown stakes if necessary, preserve vegetation that is to be saved, and it ensures that the contractor is aware of our environmental specifications.
We have a landscaping plan for the various boroughs and cities affected. Our contract clearly includes a requirement to revegetate the new Samuel De Champlain Bridge corridor green spaces and restore the riverbanks using indigenous plant species. At the end, biodiversity within the corridor is improved, with invasive species such as the water reed eradicated or largely curtailed, and its green spaces are much better structured and organized.
The widening of Highway 15 is necessary to ensure transportation safety and corridor efficiency. This component of the project presents a significant challenge because it is located in a high-density urban environment. Various options were, therefore, assessed by Infrastructure Canada and its consultants.
The new configuration was devised to optimize the current space while dealing effectively with the following set of constraints: the presence of a CN railway line; a Hydro-Québec high-voltage line; a retaining wall topped by a noise barrier; the St. Pierre collector, and; access to snow dumps. Based on these constraints, Highway 15 had to be broadened mainly toward the south, that is towards May Street.
The houses on May Street could not be kept for obvious safety and environmental impact reasons (air quality and noise pollution) due to the proximity of the highway.
Please, contact us for all your questions or comments or requests.