Preferred bidders for Fehmarnbelt Fixed Link project announced


On 4 March 2016, the Danish political parties behind the Fehmarnbelt Fixed Link project mandated Femern A/S to appoint the preferred bidders for the four main tunnel contracts with the aim of entering conditional contracts no later than mid-May 2016.

Conditional contracts mean that final and binding contracts will be signed with the successful contractors, but that construction work will be postponed until the German construction permit is in place.
The contracts are valid until the end of 2019 with the option to renegotiate at that time.
Once the final conditions for conditional contracts are settled satisfactorily between Femern A/S and the winning contractors, the company will present the results to the Minister of Transport- and Building before the contracts are signed in May 2016.

The Fehmarnbelt Fixed Link will connect Denmark and Germany and will be the world's longest immersed road and rail tunnel.
The fixed immersed tunnel link across the Fehmarnbelt will be more than 18 km long and carry a four-lane motorway alongside a twin track-electrified railway.

The four main tunnel contracts cover respectively: the tunnel north, the tunnel south, tunnel dredging and reclamation and the tunnel portals and ramps.
The contract covering the dredging and reclamation works, is to be awarded to the Fehmarn Belt Contractors (FBC) consortium including Royal Boskalis Westminster NV, Hochtief AG, Ed Züblin AG and Van Oord.
For the three other contracts, the intention is to award these to Femern Link Contractors (FLC), consisting of VINCI Construction Grands Projets, Per Aarsleff, BAM Infra, Wayss & Freytag Ingenieursbau, Max Bögl Stiftung & Co., Solétance-Bachy International, CFE, Dredging International (DEME Group) and consultant COWI.

The immersed tunnel will be approximately 18 km long and comprise 89 large pre-cast concrete elements.
The elements will be cast in a factory built for the purpose east of Rødbyhavn on the Danish side.
The contractor will therefore build the factory, cast the tunnel elements, sail them to the tunnel trench and immerse them into a tunnel trench under the seabed that will have been dug out in advance.
The contractor will then cover the tunnel elements and finish with a layer of rock on top to protect the tunnel.

The dredging and reclamation works comprise the dredging of a trench of approximately 18 km long in the seabed of the Fehmarnbelt.
The tunnel elements, which will be just over 40 metres wide and up to 15 metres deep, will be immersed into this trench.
The alignment of the tunnel trench is from just east of Rødbyhavn to just east of Puttgarden on the German side.
The soil will be used to build large new reclamation areas, peninsulas, east and west of Rødbyhavn and between Puttgarden and the village of Marienleuchte on Fehmarn.
For the dredging of the trench, FBC's partners Boskalis and Van Oord will use various types of dredging equipment including trailing suction hopper dredgers, backhoes and grab dredgers.
The dredged material will be reused to create a new recreational nature reserve area on the Danish side of the Fehmarnbelt.
The consortium FBC will also construct a new working harbor where the tunnel contractors will construct the tunnel fabrication yard.

As part of the contract for Portals and Ramps, new roads and railways will be built from the tunnel openings to the existing motorways and railways further inland.
Very large portal structures, where the traffic enters the tunnel, will also be built.
The portal structures are designed to contain technical equipment and a number of other functions.

Source: Femern, Boskalis, Van Oord, DEME Group, 4 March 2016