An immersed tunnel is a safe, tested and efficient way of building an underwater tunnel. The technology is Danish developed and builds on experiences from, among others, the Øresund Tunnel.
Fehmarnbelt tunnel
Denmark’s largest infrastructure project and the world’s longest immersed tunnel.
Three advantages of an immersed tunnel
Closer together. New opportunities.
The Fehmarnbelt link will cut travel time between Denmark and Germany and will be part of Europe’s sustainable transport network of the future.
Fehmarnbelt tunnel will be completed in 2029
Project status
Construction of the Fehmarnbelt Tunnel began in 2020 on the Danish side and in 2021 on the German side. Read more about the current status of the project here.
Finance
The Fehmarnbelt link is funded by loans and will be paid for by its users.
A safe link
The Fehmarnbelt tunnel will be safe and secure. The tunnel’s safety concept has been designed to prevent accidents, minimise the consequences and make self-rescue easy.