New bridges at Fehmarn Sound (1 km) and Storstrøm (slightly more than 3 km long) would be needed.
Furthermore, Zealand is already connected with the Swedish coast via the Øresund Bridge.
Although there is already a fixed connection between Zealand and Germany, going via the Great Belt, Funen and Jutland, the Fehmarn Belt fixed link would provide an easier and speedier route from Germany to Zealand, Sweden, and Norway.
Conventional dredging equipment can only reach to a depth of about 25 m.
To excavate the middle portion of the Fehmarn trench – deeper than 25 m below the water's surface – will likely require grab dredgers and trailing suction hopper dredgers.
According to current plans there will be one passenger train and two freight trains in each direction per hour.
Hence, there will probably be congestion and delays on the German side of the bridge, with this much traffic, if the track widening is delayed.
In 2011 this was increased to a total of €5.5 billion (at 2008 prices), although this will attract an expected EU subsidy of between €600 million and €1.2 billion.
Construction estimates cover the period from 1 April 1998 until the opening of the fixed link in 2021.
The Fehmarn Belt Fixed Link was tentatively expected to be completed in the year 2018, In February 2015, the draft bill for the construction was introduced to the Danish parliament, and the Danish government submitted an application for DKK 13 billion (€1.7 billion) in EU grants, supported by Germany and Sweden.
Beginning at least as early as 2000, German and Danish transportation planners pushed for a "fixed link"—either a bridge or a tunnel—across the Fehmarn Strait.
On 30 November 2010, Denmark's Femern A/S project manager announced it had selected immersed tunnel design submitted by the Ramboll, Arup and TEC consortium.