Siegtal Bridge

Iconic replacement bridge in Germany

DJI 0331 copy

The Siegtal Bridge is one of the tallest highway bridges in Germany with the city spreading underneath. 

  • Siegen, Germany
    Road Bridges and Tunnels
    2019 - In Progress
  • Client
    Die Autobahn GmbH des Bundes
    Størrelse
    1 km
    Samarbejdspartnere
    Schlaich Bergermann Partner / WTM / Marx Krontal

  • The exposed location above the town, a large number of intersecting traffic routes, the Sieg river, a rail line, and an overhead power line are among some of the factors which make the Siegtal replacement bridge project an extremely challenging design and planning task.

  • DJI 0136 model
    The team won the 1st prize in the competition for their proposal for the new replacement bridge.

  • The design team, comprising Dissing+Weitling, Schlaich Bergermann Partner, WTM Engineers and Marx Krontal Partner, deal with the challenges concerning the height of the bridge as well as how to cause as minimal discomfort as possible for the users and neighbors of the bridge.

  • DJI 0218 copy
    In the challenging context, traffic must flow, while replacing the old bridge with the new one.



  • For the competition phase Dissing+Weitling created three, potential designs characterised by different types of pillars.

    The preferred type is a cable-stayed bridge with spans of up to 192 metres. Alongside structural engineering aspects, economic, design, and sustainability aspects are investigated.

  • Siegtal drone shot night
    The Siegtal Bridge is approximately 106 metres tall.