Waterfront Toronto – Risk Management Measures for the New River Valley
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The City of Toronto, the Province of Ontario, and the Government of Canada are undertaking a massive design and redevelopment of the Port Lands as part of the Waterfront Toronto Port Lands Flood Protection and Enabling Infrastructure (PLFPEI) Project.

The Port Lands are a 1,000-acre area on the shore of Lake Ontario, immediately east of downtown Toronto. The area was man-made through decades of infilling of historic wetlands and has historically been used for heavy industry. Contaminants of concern primarily include petroleum hydrocarbons and metals. Much of the area is within the flood plain of the Don River and therefore flood protection must be created before the area can be fully developed. This includes the design and construction of a new River Valley that will connect the existing Don River to Lake Ontario.

This presentation will provide an overview of the risk management measures being constructed to prevent the migration of contaminants into the new River Valley. These measures will include a diaphragm wall acting as a river plug wall or dam structure, reactive core mats placed beneath Lake Ontario, structural and non-structural concrete secant pile walls, concrete slurry walls, clay berms, a geosynthetic clay liner, a geomembrane, and a reactive (activated carbon) layer.

Publication Summary

  • Geosyntec Authors: David Bertrand
  • All Authors: David Bertrand
  • Title: The 2021 SMART Virtual Event
  • Event or Publication: Event
  • Practice Areas: Operational Risk Management
  • Citation: David Bertrand, P.Geo. (Ontario) will present at the 2021 SMART Virtual Event on February 4-18, 2021.
  • Date: February 4-18, 2021
  • Location: Virtual Conference
  • Publication Type: Platform Presentation