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Toronto Transit Commission

Twin Tunnels

Southern Tunnels

Construction Information

Tunnel boring for Toronto-York Spadina Subway Extension begins

Construction Notices

Notice 1 - Southern Tunnel Construction
Notice 2 - Southern Tunnel Construction - Lane Restrictions on Keele Street south of Finch Avenue West
Notice 3 - Southern Tunnel Construction - Keele Street and St. Regis Crescent
Notice 4 - Southern Tunnel Construction - Tunnelling Underway
Notice 5 - Southern Tunnel Construction - Toronto-York Spadina Subway Extension
Notice 6 - Southern Tunnel Construction - Toronto-York Spadina Subway Extension
Notice 7 - Northbound Curb Lane Restrictions on Allen Road For Subway Tunnel Construction

Northern Tunnels

Construction Information

Construction Notices

Tunnel Boring Progress Alignment

TBM progress alignment for both the Southern and Northern Tunnels.

Map showing Tunnel Boring Progress Alignment for the Southern and Northern Tunnels

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