Mammoet does the last mile for Scarborough TBM in Canada

Mammoet does the last mile for Scarborough TBM in Canada

Mammoet team in Canada was tagged to do the ‘last mile’ delivery of the tunnel boring machine (TBM) from the Port of Oshawa to the jobsite in Toronto for Strabag. Mammoet was contracted by Herrenknecht Deutschland to transport the components. 

Initially, the TBM was part of the delivery performed by the heavy lift vessel Jumbo Vision and the break bulk carrier Federal Delta across the Atlantic to the Greater Golden Horseshoe, Canada. The TBMs are destined for Metrolinx’s Eglinton Crosstown West Extension and Scarborough Subway Extension projects.The TBM moved by Mammoet will be used to extend Toronto Transit Commission (TTC) Line 2 subwey service almost 8 kilometres farther into Scarborough.

Mammoet does the last mile for Scarborough TBM in Canada
Photo source: Mammoet

To transport the machine, Mammoet utilised a combination of highway trailers as well as hydraulic trailers to move the components, the largest of which weighs over 140 tonnes and is over 6 meters wide. This posed many interesting challenges as Mammoet navigated the busy city streets along the travel route, but the tunnel boring machine was delivered and is now being assembled at site.

To remind, the TBM for the Scarborough subway extension, weighs a total of 2,000 tons with a 12-metre diameter. At the Port of Oshawa the longshoremen have taken a week to unload the TBM piece by piece from the vessel. Due to the size of the TBMs they had to be loaded in pieces for final assembly at the destinations. The port’s stevedore QSL has taken over a year to coordinate the job from start to finish.

Come spring, the Scarborough TBM will begin burrowing a single 7.8 kilometre-long tunnel – from Sheppard and McCowan to Kennedy Station – clearing an underground pathway for the three-stop Scarborough subway extension, due for completion in 2030.

Author: Adnan Bajic

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