In assignment of the municipality of Delft, Netherlands a Dutch consortium consisting of Lightweight Structures B.V. (detailed engineering and manufacturing of the composite structure), Groot Lemmer B.V. (detailed design, assembly, hand rails and stairs) and Nebest B.V. (project management and design) constructed a composite pedestrian bridge, crossing the Provinciale Weg near the Stanislas College, December 2007.

Stanislas bridge on 22 December 2007

The total length of the bridge is 44 m. The biggest span of the bridge is 13.5 m and the width is 1.5 m. Willembart Savelkoel made the architectural design.
The composite bridge will replace a concrete (and temporary steel) bridge using the existing foundation. The municipality of Delft asked Nebest B.V. to design a new pedestrian bridge for this site and to compare a composite design to steel and concrete. The evaluation was based on overall life-cycle costs. The main advantages of the composite structure were the fast delivery, low maintenance costs and the use of the existing foundation with minimum adjustments.

Due to its effective structure, optimised for manufacturing by means of vacuum infusion, the composite concept of Lightweight Structures B.V. came out best of the evaluation on overall costs. Nebest B.V. was consequently assigned the project of the realisation. The load-bearing structure will consist of 2 segments of 22 m of a glass fibre reinforced vinylester (Atlac E-Nova, DSM Composites Resins), U-shaped girder and a deck, both manufactured with vacuum infusion, the core competence of Lightweight Structures B.V. and bonded by an adhesive (Neobond, DSM Composite Resins).

And the infusion of one of the 22 m girder sections:

Finalizing the construction: