The following has been agreed upon in the state treaty:

        •  Expansion of the B 207 (E 47) between Heiligenhafen and Puttgarden 
            to make it a four-lane federal motorway. The roadway over the 
            Fehmarnsund Bridge will remain a two-lane road.

        •  Electrification of the Lübeck-Puttgarden rail segment.

        •  Ensuring of sufficient capacity on the single-track rail segment 
            between Bad Schwartau and Puttgarden.

No later than seven years after opening of the coast-to-coast segment, expansion of the Bad Schwartau-Puttgarden rail stretch to two tracks will be completed. The rail connection across the Fehmarnsund will remain a single-track connection.

The construction costs for the hinterland infrastructure on the German side are estimated at a total of 840 million Euro (cost as of 2003).