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.

Overall length: 104.6 m
Span: 27 m – 38 m – 27 m
Stressed ribbon: 2 × 0.6 × 0.03 m
Construction height: only 15 cm total
Plan area: 418 m²
Total length: 4 m
Utilization length: 3.7 m
Steel ribbons: S690