HS2 has started excavation of the final tunnel bore on the 140m railway
HS2 launches final giant tunnelling machine towards Euston station: Train driver steers TBM Karen towards Euston | Credits: HS2
HS2 has started excavating the final tunnel bore on the 140m railway between central London and the West Midlands. The last of 11 tunnelling machines – named Karen after Karen Harrison, one of the first...
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