BTS October 2023 Meeting - Highway 401 & 409 Rail Tunnel Project, Toronto

28 September 2023

Event Date: Thursday 19th October 2023 at 18:00 hrs

October's British Tunnelling Society meeting will focus on the Highway 4012 & 409 Rail Tunnel project in Toronto.

Located in Toronto, Canada, the Highway 401 & 409 Rail Tunnel project comprises a 188 m long and 11 m high rail tunnel which passes under 21 lanes of traffic, with a low overburden.

This presentation will be delivered jointly by Dr. Sauer & Partners and STRABAG AG, and will provide an overview of the project, the design approaches and the construction.


Thomas Schwind – Technical Director & Partner, Dr. Sauer & Partners

Gerhard J. Urschitz P.E. – Head of Tunnelling & Member of the Board STRABAG AG

Dr. Angelos Gakis –  Head of Geotechnics, Dr. Sauer & Partners

This is an in-person lecture taking place at the Institution of Civil Engineers (ICE) - One Great George Street, Westminster, London SW1P 3AA

Non-BTS members are welcome to attend the event

Tea & coffee will be served from 17:30 hrs onwards

The presentation will also be live-streamed online at