Funding green light for Fehmarnbelt tunnel

By Mike Hayes01 May 2020

Work on the construction phase of the €7.4 billion Fehmarnbelt project, connecting Denmark and Germany, will commence in January 2021, according to the developer, Femern A/S.

The 18km road and rail link – set to be the world’s longest undersea tunnel – will stretch across the Bay of Kiel, between the German island of Fehmarn and the Danish island of Lolland.

In March, the European Commission (EC) approved the financing for the project, allowing Femern to activate the main construction contracts with the Femern Link Contractors (FLC).

The harbour at Rødbyhavn has been under construction since November 2019, with completion expected by the end of 2021. The harbour will act as a gateway to a vast manufacturing facility that will supply the concrete elements for the tunnel itself.

According to Femern, the factory will be roughly equal to 200 football fields in area, making it one of the largest of its kind in Northern Europe.

Immersion of a tunnel element_740

Impression of the immersion of a tunnel element

Once commissioned, the factory will begin producing the tunnel elements.

At that point, in a feat of engineering, the first of 89 concrete tunnel elements (each weighing some 73,000 tonnes) will be towed into position by four tugs, before being lowered into a dredged trench on the seabed (at a maximum depth of 30m).

Each will be fitted with a watertight steel bulkhead, keeping the interior dry and aiding its floatation.

The tunnel contractors will use GPS, echo sounding, ballast tanks, cables and winches to guide the elements into position.

Once seated in the trench, the tunnel elements will have concrete poured into cavities at the bottom of their road and rail tubes, to a depth of approximately 1m. The ballast will keep them in position on the seabed.

Following the funding approval, Femern’s CEO Claus Baunkjær said, “This is truly a great day for the Fehmarn tunnel project. The main stages of the construction phase will now commence”.

See a video animation of the Fehmarnbelt construction process here.

MAGAZINE
NEWSLETTER
Delivered directly to your inbox, Construction Europe Newsletter features the pick of the breaking news stories, product launches, show reports and more from KHL's world-class editorial team.
More News from Construction Europe
London mayor calls for construction worker visa
Sadiq Khan says Gov must introduce temporary visa system to avoid impending crisis
Can machine learning help mend the contracting system?
How artificial intelligence can help contractors more accurately estimate the length and cost of construction projects
97% of space booked for Bauma 2022
World’s largest construction trade fair confirms high level of participation
CONNECT WITH THE TEAM
Mike Hayes Editor, Construction Europe Tel: +44 (0)1892 786 231 E-mail: mike.hayes@khl.com
Simon Kelly Sales Manager Tel: +44 (0) 1892 786 223 E-mail: simon.kelly@khl.com
CONNECT WITH SOCIAL MEDIA