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Tunnelling reaches halfway mark on Eglinton Crosstown West extension

Ontario Construction News staff writer

The Eglinton Crosstown West extension reached a construction milestone last week when a tunnel boring machine nicknamed Renny passed the halfway point – completing over three kilometres of the roughly six-kilometre tunnel.

Renny started tunnelling in April 2022.

The 9.2-kilometre extension will run from the future Mount Dennis station to Renforth Drive and will operate mainly underground. Once complete, it will create a continuous rapid transit line that stretches from Scarborough, through midtown Toronto, and into Mississauga

Conveyor Belt removing soil and rock from the tunnel (Metrolinx Photo)
Conveyor Belt removing soil and rock from the tunnel (Metrolinx Photo).
Tunnel launch site near Renforth Drive (Metrolinx photo)
Tunnel launch site near Renforth Drive (Metrolinx photo)
Inside one of the Eglinton Crosstown West Extension tunnels (Metrolinx Photo)
Inside one of the Eglinton Crosstown West Extension tunnels (Metrolinx Photo)

Tunnelling started last April from the tunnel launch site near Renforth Drive and boring machines will emerge from underground west of Scarlett Road.

The second tunnel boring machine, Rexy, is not far behind Renny. Since July, Rexy has tunnelled 2.45 kilometres and reached the first headwall location at Martin Grove Road.

Follow the TBM’s journey using the tracker on the project website.

Robin MacLennan, Editor, Ontario Construction News
Robin MacLennan, Editor, Ontario Construction News
Robin MacLennan has been a reporter, photographer and editor at newspapers and magazines in Barrie, Toronto and across Canada for more than three decades. She lives in North Bay. After venturing into corporate communications and promoting hospitals and healthcare, she happily returned to journalism full-time in 2020, joining Ontario Construction News as Writer and Editor. Robin can be reached at rmaclennan@ontarioconstructionnews.com
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