A worker walks through a deep tunnel

See the videos – Highway 401 and 409 Rail Tunnel project completes excavation in tunnel two

Crews have reached another milestone in the new rail passage in the heart of some of the busiest highway traffic in Canada – 100 per cent excavation in tunnel two. Since March, heavy machinery has been digging through rock and debris in the second tunnel. We get the dirt on how this was done on the Highway 401 and 409 Rail Tunnel project, including new … Continue reading See the videos – Highway 401 and 409 Rail Tunnel project completes excavation in tunnel two

Crews work inside a tunnel.

Smooth operator – How a ‘tunnel liner’ machine handles rough spots while digging through the earth on Highway 401 and 409 Rail Tunnel Project

Now that excavation on Tunnel One is complete on a task to burrow an important rail tunnel below and through Toronto’s busy Highway 401 and 409 area, the crews are moving a liner machine through to ensure a smooth mold inside the new subterranean passage. We take you into the depths to show you how this liner construction works, as well as introduce you to … Continue reading Smooth operator – How a ‘tunnel liner’ machine handles rough spots while digging through the earth on Highway 401 and 409 Rail Tunnel Project