Canada News

GO Expansion: Highway 401 and 409 Rail Tunnel Project: Twin SEM tunnels

The Highway 401 and 409 Rail Tunnel is a Metrolinx project delivered in partnership with Infrastructure Ontario.  The two new 180 m tunnels constructed under 21 lanes of one of the busiest highways in North America will provide a capacity increase on the Kitchener GO line helping to bring more frequent, all-day, two-way service on core segments of the network and even allowing for double-stacked freight. 

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An update from the 401 Crossing

The highway 401 Rail Tunnel project consists of two tunnels, each 188m long with a maximum overburden of 2-5m. Dr. Sauer & Partners delivered the tunnel design for the Toronto Tunnel Partners (TTP).

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