Machine digging High Speed 2 (HS2) rail line completes longest tunnel
epa11184429 Workers pose by the cutting face of 'Florence' the boring machine as it breaks through on the Chiltern Tunnel in Great Missenden, Britain, 27 February 2024. The Chiltern tunnel is 16km long, the longest rail tunnel in the UK. HS2 is a high speed rail line intended to run between London and the north of England. Florence is one of 10 machines digging over 32 miles of tunnel between London Euston and Birmingham. EPA/NEIL HALL
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