HS2 Chilterns Tunnel North Portal view looking north
from HS2 media release: https://mediacentre.hs2.org.uk/news/hs2-reveals-final-design-for-last-of-seven-key-chiltern-tunnel-structures
LTA Awards Civil Contract for Design and Construction of Tunnels Between CRL West Coast Station and Jurong Lake District...wsroom/2024/6/news-releases/lta_awards_civil_contract_for_design_and_construction_of_tunnels.html
Fehmarnbelt tunnel first tunnel element cast
Femern media release https://femern.com/press/news/the-fehmarnbelt-tunnel-s-first-tunnel-element-now-cast/