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80 metres below ground with the engineers building HS2's longest tunnel
Inside HS2's longest tunnel
Final breakthrough for HS2’s longest tunnel
HS2 completes World-First box ‘bridge slide’ over the M42 in Warwickshire
HS2 Timelapse | Work begins on HS2’s longest ‘Green Tunnel’
Tunnelling Under the Chiltern Hills
HS2 launches first Midlands giant tunnelling machine
HS2 completes first Chiltern Tunnel cross passages
HS2 engineers build UK's longest railway bridge over a road
HS2 engineers complete UK's heaviest bridge drive
Historic first journey through a completed HS2 tunnel
What is a tunnel boring machine (TBM)?
