Naxan composite wood was specified for the decking and seating on the new Tabiat Pedestrian Bridge in Tehran, Iran.
The design brief for the bridge sought to provide a pedestrian crossing between the two sides of Modarres Highway; create an architectural and engineering landmark that enhanced the identity of Tehran; and celebrated the pedestrian experience without any vehicles. The asset owners wanted the materials utilised for the bridge to be low maintenance and also meet specific environmental conditions.
The pedestrian bridge needed to invite users to walk through, and retain them for sitting and viewing the beautiful landscape. The design additionally sought to minimise the footprint of the project on the site by using a minimal number of columns; the architects also had to find the points with limited tree coverage.
Naxan, a 100% recyclable composite wood alternative made using Resysta technology, was specified for the decking covering 6,700 square metres of area. For the seating, the decking was designed to flow into benches in specific parts of the bridge.
Resysta is made of fibre-reinforced hybrid material produced from approximately 60% rice husks, 22% common salt and 18% mineral oil. The recyclable composite wood is both environment-friendly as well as extremely weather-resistant against exposure to sun, rain, snow or salt water. Resysta also meets the environmental conditions of the brief as it requires minimal care and offers the look and feel of wood.
Naxan composite wood was installed for the decking in its original colour without any additional paint application to avoid colour fading problems over time.
Considered as one of the strategic landmarks in the city of Tehran, the Tabiat Pedestrian Bridge is a 270-metre long structure, spanning a valley and connecting two public parks on either side of the Modarres Highway. The US$18 million project was completed in July 2018.
Conceptualised as a structure that would become a place ‘to stay’ rather than ‘to pass’, the bridge stands out as an innovative contemporary architectural and engineering design in a strategic location overlooking the whole city with the spectacular Alborz Mountains in the background.