HS2 Chalfont St Peter vent shaft excavation HS2 media : TunnelContact.com

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HS2 Project (High Speed 2)

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HS2 Chalfont St Peter vent shaft excavation HS2 media

HS2 Chalfont St Peter vent shaft excavation HS2 media

By Kris Lubcek 786 days ago

HS2 Chalfont St Peter vent shaft excavation HS2 media

HS2 Project (High Speed 2)

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cover tunnel photo by: Matt Brown from London, England / CC BY

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