map by User:Cnbrb / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0)
from Wikimedia Commons https://commons.wikimedia.org/wiki/File:UK_High_Speed_2_rail_map.png
Cemex image for Tideway deliveries
source media release : https://www.cemex.co.uk/-/cemex-supplies-over-40-000-tonnes-of-primary-sprayed-concrete-to-london-s-super-sewer-project
HS2 Inside the Chiltern tunnel
HS2 Media release
source:
https://mediacentre.hs2.org.uk/news/hs2-chiltern-tunnel-florence-and-cecilia-reach-4-mile-point-at-chalfont-st-giles
HS2 TBM launch at Long Itchington Wood Tunnel - HS2 media release at https://mediacentre.hs2.org.uk/news/hs2-celebrates-launch-of-tbm-for-second-tunnel-bore-under-long-itchington-wood-in-warks
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