North of Gerrard, where the Midway Combined Sewer takes on its characteristic balloon-shaped form.

Midway Combined Sewer
Balloon-shaped brick pipe flows down from the Danforth and into the MTI.

The construction of the Midway Combined Sewer in 1913-1915 accompanied a variety of sewer improvements throughout the rest of the City of Toronto, including the installation of the city's first interceptor system. In dry weather, this system fed sewage from throughout the city to a new treatment plant north of Ashbridges Bay, the Main Sewage Disposal Works.

Wading into the High Park Trunk Sewer, installed beneath Bloor Street West in 1914 at the same time that the Spring Creek ravine was partially filled and regraded.

High Park Trunk Sewer

Small arch brick sewer built 1914 to drain new development above High Park

The High Park Trunk Sewer was installed on the northern border of High Park in 1914 as part of a programme of ravine filling and service provision to pave the way for residential development north of Bloor Street and west of Keele Street. Photographs in the archives show the structure of the sewer exposed in open air near Clendennan Avenue, waiting to be buried along with a significant portion of the Spring Creek ravine.

A colleague stands knee-deep in the (new) Garrison Creek Sewer, near College Street. This section of sewer was likely installed c. 1912.

Garrison Creek Sewer
Exploring Toronto's most lamented lost creek

The Garrison Sewer. It's the pulsing heart beneath Toronto's west end, lamented when not completely forgotten by those who live and play above, "a secret stream with hidden histories." 1 And, beginning in 2008, after years of wondering about it, I finally stepped into the creek.

  1. 1. http://humanriver.ca/?page_id=39
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Michael Cook is available to speak to your organization about infrastructure history, lost creeks, current conditions, and opportunities for change in our management of and communication about urban watersheds, and to work with teams proposing or implementing such change. Get in touch.