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

The Port Lands are a 715-acre area on the shore of Lake Ontario, immediately east of downtown Toronto. The area was human-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.

The design of environmental risk management measures (RMMs) is a key component to providing long-term environmental protection of surface water, future visitors, workers, and ecosystem components within the project area. This presentation will provide an overview of the risk management measures design and current construction implementation. These risk management measures will include 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: Danielle Thorson
  • All Authors: Danielle Thorson
  • Title: RPIC 2021
  • Event or Publication: Event
  • Practice Areas: Contaminated Site Assessment and Cleanup
  • Citation: Geosyntec, Savron (a Geosyntec company), and SiREM (a Geosyntec company practitioners will present virtually at the Workshop from November 15-18, 2021.
  • Date: November 15-18, 2021
  • Location: Online
  • Publication Type: Platform Presentation