Immersed tunnels

The immersed tunnel (or immersed tube) is a tunnel construction method commonly used for crossing a body of shallow water. The method has been widely used for about 100 years, and more than 150 immersed tunnels have been constructed worldwide. They mainly serve as road or rail tunnels, but immersed tunnels are also used for water supply and electric cables. Ramboll provided professional services to a wide range of immersed tunnels worldwide.

Engineers discussing the Fehmarn tunnel

Contact

Susanne Kalmar Pedersen

Project Director

T: +45 5161 6243

Expertise

Ramboll possesses the know-how and experience within all relevant technical fields related to immersed tunnels, for all stages from the early studies and planning to the detailed design. We also assist our clients with construction follow-up, supervision, independent checking and maintenance.

In the capability statement you can read more about the immersed tunnel techniques and services provided by Ramboll. The capability statement can be downloaded at the end of this page.

More information about immersed tunnels

Fehmarnbelt

Visit Fehmarn Sund Bælt's website to read more background about the project and see their many videos and visualisations.

www.femern.com

Øresundsbron

Øresundsbron AS is the company for the combined immersed tunnel and bridge crossing between Denmark and Sweden.

https://oresundsbron.com/en/start

Tunnels Capability Statement

Capability Statement on Tunnels 2018

More about tunnels

NCE International Tunnelling Award

At the recent International Tunnelling Awards 2013, a team of innovative experts from Ramboll won the “Ground Investigation and Monitoring Award” for the "exceptional geotechnical consultancy work" on the Fehmarn Fixed Link project.

NCE International Tunnelling Award