The Long Itchington Wood Tunnel’s construction began in June 2020, ... with approximately 750,000t of material produced and reused for building embankments along the railway's route.

The cost of the notorious HS2 “bat tunnel” has soared to £125m, The i Paper can reveal. Official estimates, obtained under a Freedom of Information request, suggest it will now cost around £25m more ...

As an “immersed” tunnel, instead of being dug through solid land mass like the Channel Tunnel, the Fehmarnbelt is made using prefabricated concrete sections which are dropped into a trench dug ...