From April 2025 to July 2026

The project will take place over two years (2025 and 2026), with a break each winter to restore traffic and reduce impacts on mobility.

Since it is not possible to replace both main water mains at the same time without interrupting the water supply, the project will be carried out in several phases.

This phasing has been carefully planned to:

• Ensure site safety
• Maintain essential services
• Limit disruption in the area

Thanks to coordination, extended working hours and completing several phases simultaneously, the project will be completed ahead of schedule. The project was scheduled for completion in 2027, but will now be finished in early July 2026.

The project will be carried out on Chemin de la Côte-Sainte-Catherine, between Avenue de Woodbury and Avenue de Stirling, as well as the intersection with Avenue de la Brunante.

• Replacement of 1928 primary water mains
• Replacement of secondary water mains, dating from 1946 and 1980
• Replacement of sewer pipes, which were originally installed between 1913 and 1925
• Replacement of lead water service lines
• Full road repaving
• Addition of sidewalk advances on Avenue Woodbury, Avenue Sterling and Rue Plantagenet
• Widening of sidewalks on Rue Plantagenet
• Addition of planting pits on Rue Plantagenet
• Addition of open areas on Avenue Wilderton for a bicycle path project
• Replacement of old street lights and traffic lights
• Adding street lights at intersections
• Reconstruction of the electrical and connection bases of the Commission des services électriques de Montréal (CSEM)
• Reconstruction of Bell underground conduits

The project aims to: 

• Provide a high-quality, lead-free water supply, sewer and service line system
• Prevent the disruption of services
• Mitigate traffic in the area
• Secure walking and cycling by improving the lighting network by adding street lights and reconstructing sidewalks
• Greening the area

Advancement and impact of work

The City is implementing solutions to mitigate the impact of the construction work on your daily life. Consult the list of disruptions for more information on the affected areas

To learn more about the project, the nature of the work, and the mitigation measures in place, you can watch the recording of the information session or consult the presentation or the Q&A document.

• Liste de documents See work notices (in French)