Project category

Maritime and Municipal

Location

Terrebonne, Quebec

Value($)

86 900 000

Customer

Ville de Terrebonne

Year

2022-2024

Additional informations

Complete construction of a new activated sludge wastewater treatment plant for the city of Terrebonne to eventually replace the old treatment system with aerated ponds.

Main work carried out

• Earthworks and site environmental management;
• Installation of a drainage system under the structures to be built;
• Formwork and concreting of new reinforced concrete structures with FRP (Fiber Reinforced Polymers);
• Complete construction of the main building and other related buildings, including all architectural disciplines;
• Supply and installation of treatment process mechanics systems:
• Management of all subcontractors related to the project;
• Supply and installation of new pipes and connections to existing networks;
• Coordination of the connections of the new plant, in parallel with the commissioning and maintenance of the existing plant;
• Wastewater management during connections;
• Full commissioning of the new plant;
• Operation of the new plant during the first year of use.

Special methods and technical features

• Excavation in trenches and mass 6m deep or more;
• Drying of two wetlands before the start of work, including the management of wildlife associated with these environments;
• The majority of the reinforcement for the structures in this project is FRP (Fibre Reinforced Polymers);
• Directional drilling of approximately 100m to allow temporary drainage during the works;
• Groundwater control;
• Management of invasive plants on the work site;
• Management of contaminated soils on the work site;
• Installation of pressure pipes with diameters up to 750mm.