Future OL Queen Station - hero image

Ontario Line

A new 15.6-km subway line in Toronto that will run from Exhibition Place, through downtown, all the way to the Ontario Science Centre.

East Harbour Early Works Report

Published on Nov. 17, 2021

Early construction activities at the site of the future East Harbour Station will lay the groundwork for other major construction on the Ontario Line and GO Expansion projects, reducing risk of future construction delays.

The East Harbour Station Early Works Report outlines the purpose of early works, a description of local environmental conditions, potential impacts, proposed mitigation measures and a record of consultation. The report also builds on previously completed environmental assessment work in the area, including the East Harbour Station SmartTrack Station Environmental Project Report (2018).

Read the full East Harbour Early Works Report

Read the Statement of Completion

Read the Notice of Final Publication

Read Appendix B1 – Project Distribution List

Read Appendix B2 – Project Webpage

Read Appendix B3 – Consultation and Correspondence Record

Read Appendix C – LSE-JC N&V Operations Report

Read Appendix D – East Harbour Station Rendering

Potential effects and mitigation measures

Potential effects

  • Removal of/damage to trees, terrestrial vegetation and wildlife habitat.
  • Erosion and/or sedimentation-related impacts to vegetation communities as a result of construction.
  • Disturbance or displacement of wildlife species and reduced habitat connectivity.
  • Risk of contamination to soil or waterbodies as a result of spills.
  • Introduction or spread of invasive species.

Mitigation measures

  • Identify opportunities to promote pollinator species and habitat in accordance with the Metrolinx Vegetation Guideline (2020) (e.g., this may include planting or seeding native flowering plants in temporarily disturbed areas).
  • Tree and vegetation removals will be kept to a minimum and limited to within construction areas.
  • Tree and vegetation removal compensation will be provided in accordance with the Metrolinx Vegetation Guideline (2020).
  • Temporarily disturbed areas will be restored/re-vegetated.
  • Erosion and sediment control measures will be installed prior to construction commencement.
  • Prior to early works activities, species-specific surveys will be completed as required to avoid or reduce potential impacts to bat Species at Risk and meet all Species at Risk regulatory requirements.

Read more - Appendix A1 – Natural Environment Report

Land Acknowledgement

Metrolinx acknowledges that it operates on lands that have been, and continue to be, home to many Indigenous Peoples including the Anishnabeg, the Haudenosaunee and the Huron-Wendat peoples. We are all Treaty people. Many of us have come here as settlers, as immigrants or involuntarily as part of the trans-Atlantic slave trade, in this generation, or generations past. We acknowledge the historic and continued impacts of colonization and the need to work towards meaningful reconciliation with the original caretakers of this land. We acknowledge that Metrolinx operates on territories and lands covered by many treaties that affirm and value the rights of Indigenous communities, Nations and Peoples. We understand the importance of working towards reconciliation with the original caretakers of this land. At Metrolinx, we will conduct business in a manner that is built on a foundation of trust, respect and collaboration.