West Don River in E.T. Seton Park Major Maintenance Project

Toronto and Region Conservation Authority (TRCA) will commence construction for Area 3 along the West Don River in E.T. Seton Park Major Maintenance Project in the City of Toronto in the month of October 2022.

LATEST PROJECT UPDATES

As part of the Canadian Navigable Waters application, Toronto and Region Conservation Authority (TRCA) is accepting comments regarding the effect of this project on marine navigation. Please click the Public Notice listed below for directions on how to submit comments.

Canadian Navigable Waters application – Public Notice

TRCA has now completed the planning and design process approved under the Environmental Assessment Act in the Class Environmental Assessment for Remedial Flood and Erosion Control Projects for undertaking the remedial project at West Don River in E.T. Seton Park, Toronto. We thank you for your interest, and for your participation in the planning of this project.

Please click on the link provided below to access the Project Plan.

Project Plan

Project Location

The project is located southwest of the intersection of Eglinton Avenue East and Don Mills Road, in the City of Toronto. The project area is along a section of the West Don River that flows through the Ernest Thompson Seton Park. There are three erosion hazard sites within the project area (see map below).

Learn More About the Project

Project Progress Tracker

Click Here for Past Steps!
study icon Erosion Risk Analysis & Geomorphic Assessment
2019 to 2020
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public consultation icon Notice of Intent
November 19, 2020
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alternative solutions icon Development of Concept Alternatives
Fall 2020
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public consultation icon Public Information Centre Meeting #1
February 25, 2021
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preferred alternative icon Selection & Analysis of Preferred Alternative
Spring/Summer 2021
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public consultation icon Public Information Centre Meeting #2
May 13, 2021
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project plan icon Preparation of Project Plan
Fall 2021
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public consultation icon Notice of Filing & Public Review of Project Plan
Spring 2022
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project approval icon Notice of Project Approval*
Spring 2022
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project planning icon Planning & Implementation*
Fall 2022 to 2025

 

public consultation icon – Marks points of public consultation as per the Class EA process. Public consultation will continue throughout project planning and implementation via website updates, mailing lists, public notices, and project signage.

* All future project stages and dates are tentative and subject to change.

Project Background

In the late 1960s, TRCA constructed 18 erosion control structures along the West Don River between Eglinton Avenue and Overlea Boulevard. The erosion control structures include revetments, retaining walls, and slope treatments. These structures protect public lands, parks, and sewer infrastructure.

TRCA has been monitoring the structures within E.T. Seton Park for decades as part of the Erosion Hazard Monitoring Program. Recent monitoring shows that many of the erosion control structures are failing and no longer working as intended.

Instead of fixing one failing structure at a time, TRCA wants to find a comprehensive solution for the erosion issues in the project area. With this goal, TRCA hired Palmer Environmental Consulting Group (Palmer) to complete a geomorphic assessment and an erosion risk analysis. Palmer studied the watercourse activity within the project area, identified areas of concern and made recommendations for each existing erosion control structure.

Based on Palmer’s study, three (3) Priority Areas were identified within the project area where parkland, trails and/or sewer infrastructure is at risk. TRCA intends complete maintenance work at these sites to ensure public health and safety.

Showing collapsed portion of retaining wall at Site 1. This photo is used to represent some of the issues facing the priority sites within Seton park.
Priority Area 1. Source: TRCA, 2021.
Showing collapsed portion of retaining wall at Site 1. This photo is used to represent some of the issues facing the priority sites within Seton park.
Priority Area 2. Source: TRCA, 2021.
Priority Area 3 Source: TRCA, 2021.

Background Reports

Class Environmental Assessment (Class EA)

To find the best solution for the three sites, TRCA completed Conservation Ontario’s Class Environmental Assessment for Remedial Flood and Erosion Control Projects (Class EA).

Conservation Authorities have approval to use this process for projects that will protect human life and property from flood or erosion problems.

The Class EA process outlines the steps required to determine the best solution for addressing erosion hazards. Under the Class EA, a variety of alternative solutions will be developed for each erosion site.

TRCA has reviewed the options and along with other stakeholders has selected a preferred conceptual design for each site. The preferred conceptual design is the best solution for erosion protection. It also mitigates or avoids the environmental effects that may be caused by the project.

Feedback from public consultation is also important during this process. TRCA has hired Palmer to develop alternative solutions and assist with the Class EA.

The Class EA process guarantees opportunities for public and stakeholder participation throughout the planning stages of the project. Please see the Public Consultation section for more details.

Scope of Work

The current scope of work is to select a preferred conceptual design for the erosion concerns by going through the Class EA process; this portion has been completed. A Project Plan outlining the preferred design alternatives was available to the public for review and comments until May 13th, 2022.

Future steps:

  • Develop detailed designs based on the preferred design alternatives
  • Obtain all necessary permits and approvals
  • Construction of preferred alternative (pending availability of funding and receipt of all permits and approvals)

Construction Information

The construction phase of the project for Area 3 is tentatively scheduled to begin in Fall 2022.

Construction planning will begin after detailed designs for a preferred alternative are underway. Information about work areas, access routes, and construction timelines will be posted here when the construction phase has been confirmed.

Public Consultation

The Class EA process guarantees opportunities for public and stakeholder participation throughout the planning stages of a project. Consultation includes local residents, indigenous groups, community interest groups, affected landowners, and various government review agencies.

The consultation process considers concerns about the proposed project when developing alternative solutions and selecting the preferred solution.

TRCA coordinates these consultation opportunities, and then post updates and scheduled meetings to this web page. Details of consultation events held by TRCA for this project is provided below in reverse chronological order:

May 24, 2022:

Minor comments received through the feedback process were addressed and Notice of Project Approval was issued on May 24, 2022.

April 1, 2022: TRCA made the Project Plan as well as the Feedback Form available on the E.T Seton Park Major Maintenance Project Webpage. The Feedback form will be open to the public for comments until May 13th.

Please click the links below to access:

May 13, 2021: TRCA hosted PIC #2 on Thursday, May 13, 2021 at 6:00 PM. The project team presented a detailed analysis of the net effects to the physical, natural, cultural and engineering/technical aspects of the environment from construction of the preferred concepts for each of the three (3) Priority Areas. If you were unable to attend the meeting, please find a recording of the meeting and presentation slides linked below:

Submissions for questions and comments regarding the preferred alternative for each Priority Area and the project’s environmental effects were received until Sunday, May 30, 2021.

In response to comments received through public and stakeholder consultation after PIC #1, the project team presented a new preferred alternative for Priority Area 3 and refined the preferred alternative for Priority Area 1. The updated preferred alternatives are listed below and described in PIC #2 presentation documents:

  • Priority Area 1 – Adjacent to Parking Lot: Localized Cut/Benching of Inner Bank & Vegetated Boulder Revetment
  • Priority Area 2 – South of Trail Fork: Channel Realignment with Grade Controls
  • Priority Area 3 – Adjacent to Archery Range: Vegetated Boulder Revetment and Grade Controls

February 26, 2021: TRCA hosted an online Public Information Centre meeting on Thursday, February 25, 2021 at 6:00 PM.. The project team presented the concept alternatives and attendees had the opportunity to share their questions and comments about the project. If you were unable to attend, please find links to the recording and all presentation materials in the Public Consultation Documents section below.

Submissions for questions and comments regarding the project and the concept alternatives discussed in the presentation were received until March 14, 2021. These  comments are an essential part of the Environmental Assessment process and were used to select the preferred alternative for each priority area.

November 19, 2020: TRCA issued a Notice of Intent (NOI) to inform the community that the Class EA for this project has formally begun.

The notice was sent to councillors, community groups, indigenous groups, and other stakeholders. TRCA also published the NOI through flyers in the local neighbourhood and online advertisements.

The NOI requests that individuals contact the Project Manager to participate in the EA process or stay informed of the project.

TRCA invites you to participate in the consultation process for this project. Your input is valued and will be considered in the planning and design process.

PUBLIC CONSULTATION DOCUMENTS

Notice of Project Approval: May 24, 2022

Notice of Filing Document for Review – Project Plan: available for feedback from April 1, 2022 – May 13, 2022

Public Information Centre #2: May 13, 2021 at 6:00 PM

Public Information Centre #1: February 25, 2021

Notice of Intent: November 19, 2020

Project Updates

Summer 2022 Update:

Spring 2022 Update:

  • Minor comments received through the feedback process were addressed and Notice of Project Approval was issued on May 24, 2022
  • A Project Plan outlining the preferred designs as well as a feedback form has been made available to the public on April 1, 2022, and will continue to be available for comments until May 13, 2022

Summer/Fall 2021 Update:

  • Preferred conceptual designs to address erosion concerns for each area have been selected
  • A Project Plan outlining the preferred designs will be made available to the public for a 30-day review and comment period

Spring 2021 Update:

Winter 2021 Update:

Fall 2020 Update:

  • The Notice of Intent (NOI) was published on November 19, 2020 to formally start the Class EA process.
  • NOI park signs were installed on December 2, 2020 to inform park users about the project:

    Notice fo Intent sign posted within Seton Park to engage park users.
    Notice of Intent sign posted within E.T. Seton Park to inform park users about the project.

Summer 2020 Update:

  • Palmer completed a Geomorphic Analysis and Erosion Risk Assessment for the project area.
  • TRCA retained Palmer to undertake a Class EA for the project area.

Contact Us

For more information regarding this project, please contact:

Divya Sasi, Project Manager
Erosion Risk Management
Restoration & Infrastructure
divya.sasi@trca.ca
(647) 426-4497