Jefferson East CSO Master Plan projects

We are changing the existing combined sewer system to:

Reduce basement flooding
Reduce combined sewer overflows

We are building new land drainage sewers, so that we can separate land drainage (rainfall and snowmelt) from the existing wastewater sewers. Construction on Contract 8 was completed in 2025 and construction on Contract 10 is in progress. We expect to complete this work in 2027.

Construction on Contract 7b is scheduled to start in 2026. It will include the installation of 943 meters of separate land drainage sewers, including manholes and catch basins.

Residents who live in the Mynarski and Old Kildonan wards can find out more about current traffic impacts here.

This work is part of the Combined Sewer Overflow (CSO) Master Plan. So far, the work to separate the sewers in this area has cost a total of $64 million.

You can learn more about the work planned for each contract in the “Contracts” section below.

Maps
Contracts

No.	Start date	Completion	Estimated cost	Scope of work
8	2024	2025	$5.1 million	Construction of new land drainage sewers on Andrews Street, Royal Avenue, Kingsbury Avenue, Burrin Avenue, Kilbride Avenue.
10	2025	2026	$8.3 million	Sewer separation work on McKenzie Street, Kilbride Avenue, Belmont Avenue, Hartford Avenue, Perth Avenue, St. Anthony Avenue, Royal Avenue, Aikins Street, Semple Avenue, and Andrews Street.
7b	2026	2027	$2.8 million	Sewer separation work on Royal Avenue, Kingsbury Avenue, Burrin Avenue, Aikins Street, Salter Street.

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