Toronto and Region Conservation Authority (TRCA), in partnership with the City of Toronto, has initiated a Class Environmental Assessment (EA) to support planning and design for a Slope Stabilization Project behind 94A – 100 Parkview Hill Crescent, and 2 – 5 Welby Circle, in the City of Toronto.
The purpose of the Project is provide long-term, low maintenance protection to properties at-risk from erosion and slope instability hazards. This work will help to ensure resilient watersheds and contribute to the protection of public greenspace.
Project Location
The project site is generally located northwest of O’Connor Drive and Woodbine Avenue, in the City of Toronto. The surrounding area is occupied by urban residential lands to the south and east, the Don Valley Parkway to the west, and TRCA owned valley lands and the east branch of the Don River to the north.
Learn More About the Project
Project Background
TRCA was notified of concerns related to slope instability by homeowners at 96 – 98 Parkview Hill Crescent following reports of a large slope failure behind the properties in May 2019.
Following inspection by TRCA Erosion Risk staff, it was confirmed that multiple properties may also be impacted by similar conditions.
Based on a visual assessment of the site by staff, it was recommended that properties between 1 – 5 Welby Circle and 94 – 214 Parkview Hill Crescent be included in a multi-site Slope Stability and Erosion Risk Assessment (SSERA).
In February 2020, TRCA retained AECOM Canada Ltd. to undertake a comprehensive SSERA for the greater valley lands behind Parkview Hill Crescent and Welby Circle.
Based on results from the SSERA, TRCA initiated a Class EA intending to plan and design slope stabilization works to provide long-term protection to homes deemed to be at risk from slope instability hazards. Participating properties have been separated into Primary (94A – 100 Parkview Hill Crescent) and Secondary Areas (2 – 5 Welby Circle).
These works are being prioritized and funded through TRCA’s long-standing Erosion Risk Management Program.
The purpose of the Class EA is to ensure environmental effects are considered during planning and design for slope stabilization works in the Primary and Secondary Areas to fulfill requirements of the Environmental Assessment Act.
The Class EA sets out procedures and environmental planning principles to be followed during Project planning, design, evaluation, implementation, and monitoring.
Scope of Work
Subject to completion of public engagement and selection of preferred slope stabilization solutions for the Primary and Secondary Areas, TRCA intends to proceed with detailed design and construction to provide long-term, low maintenance protection to at-risk homes in the Project area.
Construction Information
Subject to available funding, final designs, and securing required permits & approvals, construction is tentatively anticipated to commence in late 2025.
Public Notices
- Notice of Intent (NOI) published August 27, 2024 initiating the Class EA
Progress Updates
January 2025: TRCA has engaged KGS Group to prepare concepts and, subject to identification of preferred slope stabilization solution(s), engineered detailed designs.
Through 2025, TRCA will advance the Class EA including engagement with project partners, participating homeowners, and the local and regional community, to minimize disturbance and mitigate impacts from proposed works.
Contact Us
For more information regarding this project, please contact:
Daniel Dyce, Project Manager
Erosion Risk Management
Restoration & Infrastructure
9755 Canada Company Avenue, Vaughan, ON, L4H 0A3
Email: daniel.dyce@trca.ca
Phone: (647) 426-4498