Mid-Town Toronto Storm Sewer Relief

April 2021

The City of Toronto is planning to construct a number of upgrades to the storm and sanitary sewer in the Midtown area. These upgrades were recommended in the 2014 Basement Flooding Class Environmental Assessment (EA) report for Area 17. Study Area 17 is roughly bounded by Bathurst and Dufferin Streets, Highway 401 to Roselawn Avenue in the Eglinton-Lawrence Ward.

The project includes:

Upgrades to approximately 7 km of conveyance sewers
Construct a stormwater storage tank facility under Memorial Park
Install/upgrade 50+ High Inlet Capacity (HIC) – catch basin management

This works is part of the City of Toronto’s Basement Flooding Protection Program to help reduce the risk of future basement flooding.

The Federal Government through the Disaster Mitigation and Adaptation Fund (DMAF) will provide the City of Toronto with $37.16 million in funding for the Midtown Toronto Relief Storm Sewer project.

Midtown Relief Sewer Map - New sewer along Dalemount Ave from Glenpark Ave to Hillhurst Blvd and east to Chaplin Cres south to Memorial Park — Midtown Relief Sewer Map – New sewer along Dalemount Ave from Glenpark Ave to Hillhurst Blvd and east to Chaplin Cres south to Memorial Park

These sewer upgrades were recommended in the 2014 Class Environmental Assessment Study Area 17, roughly bounded by Bathurst and Dufferin Streets, Highway 401 to Roselawn Avenue; approximately 502 hectares, located in Ward Eglinton-Lawrence.

BF Study Area 17 - 18 - roughly Dufferin to Bathurst St from Hwy 401 to Roselawn Ave — BF Study Area 17 – 18- roughly Dufferin to Bathurst St from Hwy 401 to Roselawn Ave

The detailed design for the new sewer system upgrades is currently underway and expected to continue through 2022.

The preliminary design for the project was completed in 2019.

Construction for this project will initiate in 2023, to be completed in 2027.