Broadview & Eastern Flood Protection Municipal Class Environmental Assessment

Toronto and Region Conservation Authority (TRCA), on behalf of and in cooperation with Waterfront Toronto and the City of Toronto, have formally commenced the Municipal Class Environmental Assessment for the Broadview and Eastern Flood Protection Project.

Located at the intersection of some of the City’s most ambitious infrastructure and development projects, including a future office and retail nexus as well as key transportation initiatives, the Broadview & Eastern Flood Protection Project (BEFP) will seek a solution to address flood vulnerability for an 8 hectare parcel of urban land just east of the Don River and south of Eastern Avenue.

Project Update: We Need to Hear From You!

TRCA hosted a Public Information Centre for the Broadview and Eastern Class Environmental Assessment on Wednesday December 5, 2018. Our thanks to all who attended — we appreciate your interest and participation in this important project.

You can view all of the materials from the meeting HERE.

Please take a moment to provide your feedback on the following questions:

  • 1. Flood Protection Options

  • At the Public Information Centre you learned about four alternative options for flood protection in this area:

    • Do Nothing
    • Improving Conveyance
    • Flood Protection Landform
    • Flood Protection Structure
  • 2. How Will We Make A Decision?

  • All alternative options will be evaluated based on four categories of criteria:

    • Natural Environment
    • Social-Cultural Environment
    • Economic Environment and Cost
    • Technical
  • 3. Meeting Evaluation

  • Please rate your level of satisfaction on a scale of 1 to 5, where 1 is "Not very" and 5 is "Very".
  • 4. Anything Else?


    Please complete the following to be added to the contact list for this project.


Questions? Contact:

Meg St John, Senior Project Manager
Toronto and Region Conservation Authority
101 Exchange Avenue, Vaughan ON L4K 5R6

The Case for Flood Protection

Today, approximately 290 hectares of urban land east and south of the Don River are subject to flood risk. The Don Mouth Naturalization and Port Lands Flood Protection Project (DMNP), a precedent-setting undertaking aimed at revitalizing the mouth of the Don River, is currently underway and will ultimately transform the existing mouth of the Don into a healthier, more naturalized river outlet while simultaneously providing critical flood protection to Toronto’s eastern waterfront.

Following implementation of the DMNP, approximately 8 hectares of urban land bounded by the Don River to the west, Eastern Avenue to the north, and the Metrolinx railway embankment to the south will remain vulnerable to flooding under what is known as a regional storm (a storm of the same magnitude as Hurricane Hazel).

Currently mixed-use and generally underutilized, this flood-vulnerable area consists primarily of commercial and industrial lands with some residential properties to the north. However, the area is also the focus of a number of key city planning and infrastructure initiatives, including the Unilever Precinct Planning Study as well as the Port Lands and South of Eastern Transportation and Servicing Master Plan Environmental Assessment (TSMP).

As part of the future transit hub also planned for the area, the construction of the East Harbour SmartTrack and TTC Relief Line stations as well as the Broadview Avenue Extension will serve to support the planned regeneration and renewal of the Port Lands and South of Eastern area.

During a regional storm event, flood waters from the Don River would inundate this 8 hectare area and “spill” eastward through the railway grade separation at Eastern Avenue and into the Riverside Community. The depth and spatial extent of flooding would be further complicated under future land use scenarios planned for the area, such as the Broadview Avenue Extension, which would enhance flood risk to the proposed Unilever Precinct and existing south Riverdale Community due to the creation of an additional flood pathway through the new railway grade separation.

Preliminary analysis completed by the TRCA indicates that a flood protection measure located on the east side of the Don River between Eastern Avenue and the railway embankment may potentially remove the remaining flood risk following full implementation of the DMNP EA, without significantly increasing flood risk upstream or to the west of the river.

However, current land uses as well as geotechnical and infrastructure conditions pose a significant challenge to the implementation of a flood protection structure in this area, which will also need to factor into and integrate with parallel development projects.

The BEFP EA will seek to identify an adaptable flood protection solution that will eliminate the risk of flooding currently posed to the area and integrate effectively with current and future planning initiatives.

Project Objectives

The primary goal of the BEFP is to identify a flood protection solution that will remove the remaining flood risk to the lands east of the Don River and north of the elevated railway embankment following full implementation of the DMNP. Specifically, by providing a flood protection solution the BEFP will:

  1. Address flood risk up to and including the regional storm for the 8 hectare area of land;
  2. Not increase flood risk elsewhere; and
  3. Integrate with concurrent planning and infrastructure plans in the area.

Learn More about the BEFP EA

What’s New?


Materials from the public meeting can be found here:

PIC Panels
PIC Presentation


September 20, 2018 – NOTICE OF COMMENCEMENT Broadview and Eastern Flood Protection Project

In conjunction with the City of Toronto and Waterfront Toronto, Toronto and Region Conservation Authority (TRCA) is commencing a Class Environmental Assessment (EA) to seek flood protection for an area of urban land near the intersection of Broadview Avenue and Eastern Avenue, north of the Metrolinx railway corridor, east of the Don River (project area). This study will build upon the outcomes of the Don Mouth Naturalization and Port Lands Flood Protection Project, and the Port Lands and South of Eastern Transportation and Servicing Master Plan, to address these 8 hectares of urban land that remains at risk to flooding under the regional storm.

It is anticipated that TRCA, in conjunction with, the City of Toronto and Waterfront Toronto will commence the Municipal Class EA process in accordance with the requirements for Schedule B projects.

The primary objective of this Class EA is to identify a flood protection solution that will address the current flood risk for the project area, up to and including the Regulatory Flood event, and that considers existing infrastructure and integrates with concurrent planning and infrastructure works.

There will be public and stakeholder consultation activities over the course of the study as per the Municipal Class EA process. Your input will be incorporated in the planning and design process for this project. Future notices will be provided in advance of consultation.

For further information on the project, or on the planning process being followed, or to be added to an email contact list that receives notices related to the project please contact Meg St John, Project Management Office, at or 416-661-6600 ext. 5621

Broadview and Eastern Flood Protection Class EA – Notice of Commencement