About this project

When?

From May 2025 to fall 2026

Where?

Rue Saint-Jacques, between Rue Lily-Simon and Avenue Madison.

What?

The project involves repairing the main on Rue Saint-Jacques between Rue Lily-Simon and Avenue Madison, which has a 300 mm diameter, as well as sewer mains between Rue Helen-Rochester and Avenue Madison.

The project consists of the following steps:

• Repair of a water main with a diameter of 300 mm over a length of 200 metres
• Rebuilding a 300 mm drinking water main
• Installation of valve chambers including connections and accessories
• Repairs to sewer lines, repairing and rebuilding sewer and sump connections
• Replacement of 50 mm and 150 mm water connections
• Replacement of lead water service lines
• Repair work on mixed-use pavement cutting and sidewalk and concrete curb repairs

Why?

This section is served by two water pipes, a 200 mm secondary water pipe installed in 1911 and a 300 mm main water pipe installed in 1906. These two pipes have reached more than 92% of their lifespan.

Hydraulic simulations showed that these two pipes could be replaced with a single secondary pipe that would have the capacity to serve shops and provide adequate fire protection.