The City if planning to replace the aging watermains on Martin Grove Road from north of Rathburn to Lorraine Gardens. These watermains are over 75 years old, have a history of leaks and breaks, and need to be brought to a state of good repair. For the watermain segment that will cross Mimico Creek, the City has initiated a Municipal Class Environmental Assessment (EA) study that will follow the ‘Schedule B’ approach to evaluate alternative alignments and recommend one to cross below the creek.

Tell us What you Think

The City is consulting with the community to receive your feedback on these alternative solutions including the recommendation to cross Mimico Creek. Join us at the virtual public meeting on December 7, 2020 (details below). Send us your feedback through the online survey, or contact us by email or phone by December 21, 2020.

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If you would like to receive updates about these projects, email martingrove@toronto.ca

Virtual Public Meeting – December 7, 2020

Presentation followed by Question & Answer

6:30 – 7:30 p.m. Road Safety Improvements

7:30 – 8:30 p.m. Watermain Replacement

Notice of Commencement & Virtual Public Meeting (November 19, 2020)

Attend online (computer, smart phone, or tablet)

Register to receive a Webex meeting invitation link and instructions to connect with your device. Please join 10 minutes early to troubleshoot any technical issues that may arise. Your name and image will not be visible to other participants in the virtual meeting. Lear more about participating in City of Toronto virtual engagement events.

Call in (audio only)

Dial 416-915-6530

Enter the meeting access code: 177 192 6456

The phone line will open 5 minutes before the start of the meeting. We encourage people who join by phone only to have the presentation on hand. Participants who call in will have an opportunity to ask questions.

Need Assistance or Unable to Attend?

Please contact us if you require accommodation to participate in this virtual meeting.

If you are unable to attend the meeting, please review the presentation (will be posted shortly), ask questions by phone or email and submit your feedback by December 21, 2020.

Watermain Replacement along Martin Grove Road from south of Savalon Court to Lorraine Gardens
Watermain Replacement along Martin Grove Road from south of Savalon Court to Lorraine Gardens

Two existing watermains on Martin Grove Road from north of Rathburn Road to Lorraine Gardens are 75 and 88 years old and have a history of leaks or breaks:

  • 2010
  • 2011
  • 2015 (two events)
  • 2016 (two events)
  • 2018 (three events)
  • 2019 (two events)

A new replacement watermain is needed to continue serving the community and building in redundancy in the water supply network.

The new replacement watermain segment that will cross Mimico Creek requires a Municipal Class Environmental Assessment (EA) study to determine its alignment below the creek. The replacement watermain segments north of Mimico Creek to just south of Savalon Court and from just north of Rathburn Road to Lorraine Gardens will be constructed within the road right-of-way and do not require an EA study.

Environmental Assessment Study

The Municipal Class Environmental Assessment study is an approved planning process under the Ontario Environmental Assessment Act. The study to replace the watermain below Mimico Creek will follow the ‘Schedule B’ process which includes opportunity for public input.

Environmental Assessment Study process for Schedule B proejects
The Environmental Assessment study process for schedule B projects includes the following steps: identify problem and opportunity; research the natural, socio-cultural, economic and environmental conditions; identify alternate solution(s) and develop evaluation criteria; evaluate solutions and select the preferred solution; complete final report and 30-day review period. This study is currently at the step to evaluate solutions and select the preferred solution.

Alternative Solutions: Evaluation & Preferred

The following alternative solutions have been evaluated:

#2 Below Bridge & Inside ROW #3 West of Martin Grove Road/Bridge #4 East of Martin Grove Road/Bridge
Natural & Environmental Moderate Impact Greatest Impact Least Impact
Socio-Cultural Moderate Impact Least Impact Moderate Impact
Technical (Constructability, Alignment & Impacts) Highest RIsk High Risk Low Risk
Economic Highest Cost High Cost Lowest Cost
Summary Significant potential of equipment failure resulting in additional costs Affects the most trees and includes high risk of equipment failure resulting in additional costs Moderate tree and park access impacts. Construction method is capable of constructing this alignment

The City is recommending that the watermain be installed east of Martin Grove Road/Bridge. This solution:

  • poses the fewest construction risks and impacts
  • has an alignment within the recommended use of a specialized drill
  • does not impact the bridge’s structure or maintenance
  • does not impact other underground utilities

This solution may require the removal of up to five trees (which will be replaced) and may require intermittent closures or detours around the worksite in Ravenscrest Park (details to be confirmed after study completion).

Your Feedback

Complete the survey, or submit your comments by email or phone by December 21, 2020.

  1. Do you have concerns with the preferred solution, East of Martin Grove Road/Bridge
  2. Do you have concerns on the evaluation?
  3. Do you have concerns with the criteria used?
  4. Any other comments?

Next Steps

  • Receive community feedback
  • Issue Notice of Completion and 30-day public comment period on Project File Report
  • Complete, issue, award construction tender
  • Construction anticipated to start late Summer 2021 and completed by December 2021 with site restoration in Spring/Summer 2022

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