sewer infrastructure upgrades construction

St. Catherines Sewer Trunk Upgrades

Project update

Construction is complete. The road is now open to cyclists, vehicles, and pedestrian traffic.

We’re upgrading critical sewer infrastructure along sections of E 39th Ave, E 40th Ave, Prince Albert St, and St. Catherines St.

We will replace the existing St. Catherines Trunk with a larger-capacity and separated sewer system with one pipe for rainwater runoff and one pipe for sanitary sewer.

The new sewer will have a life expectancy of 100 years and will help to serve this growing neighbourhood.

Learn more about sewer separation

What is a trunk?

A sewer trunk line collects waste and storm water from smaller sewer lines.

Waste and storm water collected in the larger trunk eventually flows to the Iona Island Wastewater Treatment Plant located in Richmond.

Improving pedestrian safety

The project will improve safety for people walking at pedestrian crossings along routes to Sir Alexander Mackenzie School by adding curb bulges at:

  • St. Catherines St and E 40th Ave
  • Prince Albert St and E 39th Ave
  • Windsor St and E 40th Ave

Project details


  • E 39th Ave, Chester to St Catherines St
  • E 40th Ave, lane east of Chester St to Windsor St
  • Prince Albert St, E 37th to E 39th Ave
  • St. Catherines St, E 40th to E 41St Ave

Expected duration

  • Start: Spring 2018
  • End: Fall 2019

Hours of work

  • Monday to Friday, 7am to 3:30pm
  • Weekends and extended hours as needed

Project timeline: 2018 – 2019

Sewer Upgrades - Complete

Section Estimated start Estimated end
Prince Albert St from E 37th to E 39th Ave November 2018 April 2019
E 39th Ave from Chester to St Catherines St July 2019 August 2019
E 40th Ave from the laneway east of Chester St to Windsor St March 2018 October 2018
St. Catherines St from E 39th to E 41st Ave May 2018 November 2018


How this project may affect you

Access to residences

Access to residences and Sir Alexander Mackenzie Elementary School will be maintained at all times.

Sidewalk access and pedestrian street crossings will be generally maintained and detoured as necessary.


Parking restrictions will be in effect to accommodate construction. Be sure to watch for No Parking signs as restrictions will change as work progresses. Restrictions will be lifted as soon as they’re no longer needed.


Some street closures will be in effect to accommodate sewer work. At these times, laneway access will be maintained.

Contact us

Community Liaison
Do Nguyen