Invisible Bridge by RO&AD Architects

From a distance it is scarcely perceptible, the bridge of RO & AD architects across the moat of a historic Dutch fort - and this should be so to the surroundings of Fort de Roovere from the 17th Century to visually impair as little as possible. “We have been working at making our building projects and products more sustainable for a number of years now. After having watched the documentary Cradle to Cradle , we became convinced that the cradle-to-cradle philosophy combined with our input can make a better, economically makeable and happier world. We therefore try to incorporate this insight into our designs as much as possible.”
The unconventianal bridge was designed by RO&AD Architects from the Netherlands and Belgium. The invisible bridge connects the route to the Fort de Roovere, which was a part of the 17th century defense structure. The use of processed timber retains the walls and resists decay. This great construction allows pedestrians to walk Moses-like through the water. Construction materials were Accoya wood, that underwent a nontoxic proprietary modification process called acetylation that renders it an unrecognizable wood source, preventing fungal decay from the exposure of water and moisture while increasing its structural stability.  While this water walkway is simple in concept, it is quite complex in its execution.