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HS2 celebrates completion of first 16km drive for Chilterns tunnel

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High Speed 2 (HS2) Ltd and its main works contractor Align JV (Bouygues, McAlpine, VolkerFitzpatrick) celebrated the completion of the first bore of the 16km Chilterns tunnel today, 27 February.

The 2,000t tunnel boring machine (TBM) Florence, manufactured by Herrenknecht, set off on its journey from the south portal alongside the…