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Advance Tunnel for Scarborough Subway Extension

Model Audit

25th May 2021

DWPF provided model audit advice to Strabag on the successful financing of the Advance Tunnel for Scarborough Subway Extension P3 in Ontario, Canada.


The project scope of work includes:

  • Tunnelling works for the 7.8-kilometre subway extension, from Kennedy Station to McCowan Road/Sheppard Avenue.
  • Design and construction of launch and extraction shafts, tunnel, as well as headwalls for emergency exit buildings and stations.
  • Supplying the tunnel boring machine and installing segmental precast concrete tunnel liners.
  • Activities necessary to build the tunnel (e.g. utility relocations, supports for shaft and headwalls, temporary power supply, lighting, ventilation, and drainage).