Based on initial investigations and detailed planning, indications are that an immersed tunnel is the best solution in terms of traffic, safety and the environment. At speeds of up to 110 km per hour on the motorway, motorists will be able to drive through the tunnel in approx ten minutes while train passengers will cover the distance in 7 minutes. A reliable solution, a tunnel would be open round the clock regardless of weather conditions.
The underwater section of the tunnel will be 17.6 km long with additional sections for the approaches at Puttgarden and Rødbyhavn. These sections will be built on artificial islands, which will extend 500m into the sea on both sides of the belt.
Setting a world record
The Fehmarnbelt tunnel is set to become the world’s longest combined car and rail tunnel. The tunnel will be five times as long as the Øresund tunnel between Copenhagen and Malmø and three times longer than the Trans-Bay Tube Bart Tunnel in San Francisco, currently the world’s longest immersed tunnel.