Major upcoming construction project

Category : Info-works
May 22, 2024

The Projet de l’aqueduc de l’Ouest, a major construction project by the City of Montreal, will be underway in Montreal West and NDG as of May 27, 2024, with work lasting about seven months at the following locations:

  • Westmore Avenue, between Sherbrooke Street W. and Somerled Avenue
  • Sherbrooke Street W. and Broughton Road, between Westminster and Trenholme Avenues

The City of Montreal is building water mains to improve and secure potable water supply to the western part of the island of Montreal. This project will be carried out over a 10-year period. For more information on this project.

Road Closures

  • Starting the week of May 27, 2024, Westmore will be completely closed between Somerled Avenue and Sherbrooke Street W., including the intersection at Somerled and Terrebonne, until winter.
  • Sherbrooke Street W. will experience complete and partial closures between Westminster and Trenholme until autumn.
  • Broughton Road will experience complete and partial closures between Brock South (including the intersection) and Westminster South until autumn.

Part of the project includes installing a water main under the train tracks, requiring the simultaneous closure of Sherbrooke and Broughton.


The construction will be completed in phases, and timelines may be affected by factors such as the weather. As a result, closures might be complete or partial, and detours will be clearly marked with signage according to the phases of work.


  • Regular construction work will occur Monday to Friday from 7 a.m. to 6 p.m.
  • Work beneath the train tracks will continue 24/7 (scheduled from June – September).

Water service interruption

Should water service be interrupted, the City of Montreal will distribute a flyer to each affected building indicating the date, time and duration of the interruption, at least 48 hours before the water is shut off.


Please follow the signs installed around the construction sites to ensure safety and optimize traffic flow. Detours will be in place and clearly indicated. Be aware that speed limits and parking restrictions may change and will be marked with appropriate signage.


For any questions or concerns, contact the City of Montreal at 514-872-3777 or If a situation on the work site requires the foreman’s attention, call 311.

For more details, including a map of the work site, please see here.