Bridges, Road Bridges

Viaduct Obere Argen

© Roland Halbe

This 6-lane bridge crosses a rather flat valley with a little river, a quite usual situation. However sliding subsoil conditions made the founding of piers on one side of the valley difficult and costly. Therefore we proposed a 258 side span combining a cable-staying from above and propping from below, winning with that first prize in a competition.
This combination halves the pylon height of a standard cable-stayed bridge, without increasing the cable forces. The low pylon and the overall lightness of this large bridge blend well with its pre-alps surroundings.

Categories
Bridges, Road Bridges
Location
Wangen im Allgäu, Germany
Architect
schlaich bergermann partner; Hans Kammerer, Stuttgart
Owner
Autobahnamt Baden-Württemberg
Partner
schl

Technical Data

Length
730 m
Span
258 m
Width
29 m
Height of pylons
55 m
Height of bridge above valley
max. 40 m
Cables
fully locked spiral strands, diameter 126 mm

Lectures

Location

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