INFRASTRUCTURE

HS2 TBM cutterhead's overnight journey to start second dig

Night-time operation takes the HS2's 'Dorothy' TBM's cutterhead back to Long Itchington Wood Tunnel

 The cutterhead from HS2’s TBM Dorothy being moved on a 12m long, 48-wheel self-propelled trailer

The cutterhead from HS2’s TBM Dorothy being moved on a 12m long, 48-wheel self-propelled trailer

The cutterhead, weighing 160t and with a 10m diameter, was moved overnight. Standing upright on a 12m long, 48-wheel self-propelled trailer (SPT), it was transported from the south portal site, along the...

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