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Traffic bridges Sneek

General

Sneek is home to two unique structures: timber viaducts with a free span of 32 meters, crossing the motorway A7. Many technical innovations were needed to successfully complete the two landmarking bridges. Starting with their complex form: a lattice of curved and twisted rafters in laminated wood. Added with the fact that such a span had

never before been achieved in timber and combined with a design load in the highest traffic class, these are a first of its kind in timber structures. Furthermore the main beams are pre-stressed and the bridges are the result of the first large scale production of acetylated wood: Accoya. As a result the bridges are the first heavy traffic viaducts in Europe. 

Sneek is home to two unique structures: timber viaducts with a free span of 32 meters. Their complex form, the fact that such a span had never before been achieved in timber, and the design load in the highest traffic class, make the design a technical balancing act on a razor’s edge. The viaducts provide the support structure for the road surface with a lattice of curved and twisted rafters in laminated wood. The concept was realized thanks to the fact that all the parties involved viewed apparent impossibilities as problems to be solved.

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