Italian Bridge over the River Plessur

<p>The new bicycle and pedestrian bridge over the river Plessur relieves traffic congestion in the Welschdoerfli street and provides better access to the old town of Chur for non-motorized traffic. The superstructure of the bridge consists of the S-shaped curved bridge girder and the arch that spans diagonally above the bridge deck. The roadway girder with a total length of 77 m is supported by 10 inclined suspender ropes, which are attached to the arch and the laterally protruding corbels. The overhang of the corbels is variable, so that a sufficient clearance height is ensured at every suspender rope. In the middle of the span, the arch protrudes</p><p>9.5 m above the roadway, where the arch has a span of 62 m and an arch rise of 14 m. The result is an extremely slender and filigree bridge structure that fulfils both urban planning and design aspects in a convincing way. The paper will focus on the structural design as well as on the assembly of the bridge, whereby some specialties are described in more detail.</p>