architect: RO&AD architecten

location: Halsteren, comune di Bergen op Zoom, The Netherlands

year: 2011

Moses Bridge by RO&AD architecten is part of the West Brabant Water Line, a defence-line consisting of a series of fortresses and cities with inundation areas in the south-west of the Netherlands. It dates from the 17th century but fell into disrepair in the 19th century. When the water line was finally restored, an access bridge across the the moat of one of the fortresses, Fort de Roovere, was needed.

photo by RO&AD architecten

This fort now has a new, recreational function and lies on several routes for cycling and hiking. It is, of course, highly improper to build bridges across the moats of defence works, especially on the side of the fortress the enemy was expected to appear on. That's why the architects designed an invisible bridge. Its construction is entirely made of wood, waterproofed with EPDM foil. The bridge lies like a trench in the fortress and the moat, shaped to blend in with the outlines of the landscape. The bridge can't be seen from a distance because the ground and the water come all the way up to its edge. When you get closer, the fortress opens up to you through a narrow trench. You can then walk up to its gates like Moses on the water.

photo by RO&AD architecten

architects: RO&AD architecten
contributing architects: Ro Koster, Ad Kil, Martin van Overveld
structural engineer: Adviesbureau Lüning
contractor: AVK-bv
client: comune di Bergen op Zoom
location: Halsteren, comune di Bergen op Zoom, Paesi Bassi
used materials: Accoya Wood, Angelim Vermelho
total area: 50 sqm
total building costs: 250.000 euro