Statens vegvesen E39 underwater tunnels Rogfast route. from Statens vegvesen press release : https://www.veier24.no/artikler/signerte-rogfast-kontrakt-pa-4-milliarder/5124880

Unusual geology discovery at Bergå tunnel at E6 Helgeland in Norway. Statens vegvesen press release via https://kommunikasjon.ntb.no/pressemelding/full-stopp-etter-uvanlig-funn?publisherId=17847490&releaseId=17952219

Norway E03 Tunnel image by Implenia press release https://implenia.com/en/media/news-article/norwegen-e03-boknafjord-tunnel/

Brenner Base Tunnel TBM Lilia press release https://implenia.com/en/media/news-article/lilia-die-erste-tunnelbohrmaschine-zum-bau-des-brenner-basistunnels-ist-startklar/

Korea Expressway Corporation Battery Powered Jet Fan DIagram origin: Korea Expressway Corporation Press Release https://www.ex.co.kr  

Korea Expressway Corporation Battery Powered Jet Fan origin: Korea Expressway Corporation Press Release https://www.ex.co.kr  

Korea Expressway Corporation Battery Powered Jet Fan in use origin: Korea Expressway Corporation Press Release https://www.ex.co.kr  

CRCHI Vertical Sinking Machine http://en.crchi.com/art/2022/11/30/art_40592_4123481.html

CRCHI Hard Rock TBM Peru. CRCHI news http://en.crchi.com/art/2022/12/15/art_40592_4129524.html

Graph bored tunnel between Fairways Drive and Sin Ming Walk From LTA press release