Wikipedia:<br>The dreifeldrige building was made in the page fields as a box girder with variable cross sectional height on a supporting structure. The spans are 30, 80 and 30 meters. The medium-sized box was erected in the cantilever and spans the waterway and on both sides to running routes. The construction height is with regard to pillar at 6.9 m, and in the middle of the bridge 3.3 m. A special construction (so-called train thrust bearing) was elected to compensate for possible alternating forces in the area of the building over to derive also the tensile forces into the subsoil.<br>The construction of the bridge took 14 months.