Dorval: Rebuilding of a stormwater sewer

Last updated September 1, 2022
Reading time: 2 min

The project consists of the reconstruction of a stormwater sewer located in Dorval, south of Autoroute 20. The work will extend the useful life of a collector and ensure high-quality services for future generations.

Learn all about the project


  • Fall 2022
  • Summer 2023 to the end of fall 2023


East of Avenue Louise-Lamy, between Chemin Herron and Avenue Carson.


Fall 2022 and winter 2023

Preparatory work during about two months: cleaning and measuring of the collector (the large-diameter pipe for stormwater collection).

Summer to fall 2023


  • Rehabilitation of the collector with the insertion of a new pipe in the existing one (fibreglass-reinforced polyester tube or shell)
  • Repair of the two most damaged sections of the pipe (trench excavation)
  • Replacement and repair of shafts to access the collector for the project and maintenance (sewer access)
  • Measurement of the collector section located between Avenue Carson and Avenue Dawson to for later rehabilitation of that portion (separate project)


The collector dates from 1964 and is showing signs of significant deterioration. The project includes repairs along a length of 430 metres.

This work will extend the life of the collector and will prevent the need for emergency intervention. Emergency work could have undesirable impacts on your daily life, including the need for major excavation on roads or lots, and the work could take longer.

Vos déplacements


  • Partial closure of:
    • Avenue Carson eastbound near the intersection with the private road for Les Jardins Dorval shopping centre.
  • Temporary disruption on:
    • Avenue Louise-Lamy, at street address 253;
    • Avenue Dawson at 205 Avenue Louise-Lamy.


  • Temporarily inaccessible parking spaces:
    • Near the TD Canada Trust branch and Pharmacie Jean Coutu in the Rond Point shopping centre;
    • In the Haus Der Heimat housing cooperative’s private parking lots and the condo buildings on Avenue Louise-Lamy (325, 335, 355 et 375);
    • For these residences, on-street parking will be available;
    • Refer to the signs for details.

Introduction letter