Now showing: The world’s deepest subsea tunnel
The B1M is the world’s largest YouTube channel for construction projects, with 4 million subscribers. In early June, the channel presented the Boknafjord Tunnel project in Norway in an impressive half-hour documentary. Implenia Norway is also involved in the project.
The documentary
The film was released under the title “Inside the World's Deepest Subsea Tunnel” and paints a comprehensive picture of what it takes to realise a megaproject of this scale. Viewers are taken into the tunnel, down to the geological challenges beneath the Boknafjord and to the political and cultural decisions that laid the foundation for construction. Implenia Operations Manager Henrik Kohle highlights the good work of everyone involved in the project.
The Rogfast project
E03 Boknafjord Tunnel South (Rogfast)
In Stavanger, Norway, the Implenia–Stangeland consortium has been building around 17 km of subsea tunnels and roads as part of the Rogfast project since 2023, with work set to continue until 2030. MORE
The E39 Rogfast project, lot E02 Kvitsøy
Between Randaberg on the Norwegian mainland and the islands of Kvitsøy and Bokn, the most complex part of the Rogfast project is taking shape: an 8.8 km, twin-tube, two-lane road tunnel with a cross-section of 10.5 metres, running both south and north of Kvitsøy. In addition, an elaborate underground junction structure is being built, including roundabouts and a connection to Kvitsøy via an underground ramp.
