Engineers discussing the Fehmarn tunnel
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.
Visit Fehmarn Sund Bælt's website to read more background about the project and see their many videos and visualisations.
Øresundsbron AS is the company for the combined immersed tunnel and bridge crossing between Denmark and Sweden.
In the future Scandinavia and the rest of Europe will be connected by the world's longest road and rail tunnel.
The Øresund Link connects the Danish capital Copenhagen with the city of Malmö in southern Sweden by a four lane motorway and a two track electrified railway for high speed (200 km/h) passenger services as well as freight trains.
The North South Line Cross Harbour Tunnel is a 1.7 km immersed tunnel crossing the Victoria harbour in Hong Kong. Ramboll undertakes the role to be the Independent Geotechnical Expert Advice (the ‘expert Reviewer’) for the Immersed tunnel.
Ramboll was chosen to undertake overall repairs on the Limfjorden immersed highway tunnel, which has a total length of 550 meters.
The tunnel consists of two tubes app. 6.5m x 6.5m each with a total length of app. 170m. A new technology for immersion, sliding and pulling under water has been invented for this project.