Skip to Main Content

Ashbridges Bay Erosion and Sediment Control Project

Toronto and Region Conservation Authority in partnership with the City of Toronto, has now completed the Ashbridges Bay Erosion and Sediment Control, Conservation Ontario Class Environmental Assessment.  The study was undertaken to address the existing navigation risk caused by sediment deposition at the harbour entrance at Coatsworth Cut, while considering approved projects and waterfront planning initiatives in the area.




Project Update 

The Toronto and Region Conservation Authority (TRCA) and the City of Toronto have completed a Class Environmental Assessment for the Ashbridges Bay Erosion and Sediment Control Study.

The Ashbridges Bay Erosion and Sediment Control study was undertaken in accordance with the Conservation Ontario Class Environmental Assessment for Remedial Flood and Erosion Control ProjectsTwo Public Information Centres were held to present and receive input on alternative solutions (June 19, 2013) and the recommended solution (February 6, 2014).  An Environmental Study Report (ESR) was completed (link below).

Environmental Study Report: Ashbridges Bay EA ESR Report

Environmental Study Report Appendicies: Ashbridges Bay EA ESR Appendices

Notice of Project Completion: Notice Of Completion - Ashbridges Bay



TRCA, in partnership with the City of Toronto, re-initiated a Conservation Ontario Class EA to address erosion and sedimentation issues within Coatsworth Cut and Ashbridge's Bay Park. The 2013 EA picked up where the 2009 Class EA left off and identified the design alternatives that still remain valid given the change in project scope.

Notice of Intent - Ashbridges Bay Class EA - Notice of Intent

For more detailed information on the scope and process:

Project Brief - Ashbridges Bay Project Brief


Study Area

Ashbridges Bay is located on the north shore of Lake Ontario in Toronto, Ontario. Within the local study area, Coatsworth Cut serves as an access route to the lake for several boat clubs, and a public boat launch, and offers sheltered water for sailing, kayaking, and canoeing. Lands surrounding the local study area include Woodbine Beach, Ashbridge's Bay Park, Tommy Thompson Park, and Toronto Water's Ashbridges Bay Wastewater Treatment Plant.

Ashbridges Bay EA Study Area Map

Baseline Environmental Inventory

A draft Baseline Environmental Inventory (BEI)  was prepared and was reviewed by Community Liaison Committee members in November 2013. 

The project BEI consists of the examination and documentation of existing project site conditions - physical, biological, cultural and socio-economic environments. The physical environment description includes an account of previous measures (dredging) implemented in the area and technical and engineering aspects to be considered. The report provides the baseline conditions information needed to evaluate alternative methods of addressing the problem situation. In addition, the inventory provides a baseline from which to monitor the effectiveness of the action, once taken, as well as the types and levels of environmental impacts. 

Ashbridges Bay Class EA BEI Draft

Public and Agency Consultation

The Class EA process provides that all views respecting a proposed remedial flood or erosion control project be taken into consideration during the planning and design of remedial flood and erosion control projects. A Community Liaison Committee (CLC) was formed to provide a venue to allow concerned citizens, local interest groups and non-governmental organizations to voice issues of public concern as well as assist in the planning and design process of the project. Public Information Centers were also held to seek feedback on the study from a broad audience.


Community Liaison Committee

A Community Liaison Committee (CLC) was established subsequently to publishing the project Notice of Intent. The CLC met three times throughout the course of the EA. Presentations and minutes associated with these meetings are available below.

CLC Meeting #1 - May 15, 2013

CLC #1 - Presentation

CLC Meeting #2 - September 5, 2013

CLC Meeting #3 - November 28, 2013


Public Information Centers

Two Public Information Centers (PICs) were held to allow for public comment on the EA. These public meetings provided opportunities for the community to be made aware of the project and provide feedback as the study progressed. Both PICs were advertised in the Beach Mirror newspaper prior to the meeting and notices were sent to project stakeholders (CLC members, politicians and others who expressed interest in the project) electronically.

Public Information Center #1

The first Public Information Center (PIC) was held on Wednesday June 19, 2013 from 6:30 pm to 8:30 pm at the Toronto Fire Academy (895 Eastern Ave, Toronto). Background information on the project was provided and the public were asked to provide feedback on the draft evaluation criteria that will be used to assess remedial alternatives.

24 Panels were featured at the PIC outlining the project process, existing conditions, screening of previous remedial alternatives, draft evaluation criteria and next steps. A comment form (workbook) was provided at the PIC and also made available online. Comments and feedback were requested to be submitted during the two weeks following the meeting.

PIC #1 Panels

PIC #1 Workbook

Meeting Notice - NOTICE For PIC 1 - Ashbridges Bay Class EA

Public Information Center #2

The second PIC was held on February 6, 2014 from 6:30 pm to 8:30 pm at the Toronto Fire Academy (895 Eastern Ave, Toronto). The purpose of this PIC was to review the results of alternatives evaluation and present the recommended preferred alternative.

Similar to the first PIC, a comment form (workbook) was provided at the PIC and also made available online. Comments and feedback were requested to be submitted during the two weeks following the meeting.

PIC 2 Panels

Project context map - showing the Preliminary Preferred Alternative along with other City of Toronto Approved Facilities

PIC 2 Comment Form

Meeting Notice - Ashbridges Bay EA Notice of PIC 2


Project Contact

Lisa Turnbull, Sr. Project Manager
Project Management Office
Restoration Services
Toronto and Region Conservation
5 Shoreham Drive
Downsview, ON M3N 1S4
Tel: 416-661-6600 ext. 5645
TTY: 416-338-0889