Bridges, Pedestrian Bridges

IGA 2003 Rostock – North Bridge

© HG Esch

The North Bridge is one of the few already existing three-span stress-ribbon bridges. The extraordinary transparency of this bridge across a flood plain is a result of the low construction height. The stress-ribbons of micro-alloy structural steel are anchored in concrete abutments founded on injection drilled piles. Hinges supports are used as intermediate support, equipped with a blade spring each as flexible saddle. For the slab 12 cm thick prefabricated concrete elements are bolted onto the stress-ribbons. The tubular steel railing with mesh wire effectively assists in the vibration-dampening without impairing the structure’s transparency. The weight of the pavement’s concrete slabs and the shallow rise of the stress-ribbons provide the stability for the bridge.

Rostock, Germany
WES & Partner, Landschaftsarchitekten, Hamburg
IGA GmbH, Rostock
Project Responsibility
Mike Schlaich


Technical Data

Overall length
104.6 m (343 ft)
27 + 38 + 27 m (88 + 124 + 88 ft)
Stress ribbons
2 x 600 mm x 30 mm S690QL1 (2 x 24 in x 1.2 in)
Construction height
only 15 cm total (5.9 in)
Plan area
418 m² (4499 sq ft)
Total width
4 m (13 ft)
Utilization width
3.7 m (12 ft)




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