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Tunnel contract awarded for Scarborough subway extension

Tunnel contract awarded for Scarborough subway extension
METROLINX - A $757.1 million contract has been awarded to Strabag to design, build and finance the tunnel for the Scarborough Subway Extension project. Tunnelling work includes a 7.8-kilometre subway extension from Kennedy Station to McCowan Road/Sheppard Avenue.

TORONTO – A $757.1 million contract has been awarded by Infrastructure Ontario (IO) and Metrolinx to Strabag to design, build and finance the tunnel for the Scarborough Subway Extension project.

The team includes Strabag Inc. (construction and financial adviser) and Arup Canada Inc., Brian Isherwood & Associates Ltd. (design).

Onsite mobilization and pre-construction work began this spring, with launch shaft construction beginning in June, explains a release. Major tunnel boring is expected to begin next year and Strabag estimates the majority of the labour will come from the Greater Toronto Area.

The scope of work for the advance tunnel includes:

– Tunnelling work for the 7.8-kilometre subway extension from Kennedy Station to McCowan Road/Sheppard Avenue;

– design and construction of launch and extraction shafts, the tunnel, as well as headwalls for emergency exit buildings and stations;

– supplying the tunnel boring machine and installing segmental precast concrete tunnel liners; and

– any activities necessary to build the tunnel (e.g. utility relocations, supports for shaft and headwalls, temporary power supply, lighting, ventilation and drainage).

The project is being delivered through IO’s public-private partnership model.

 

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