Alphen aan den Rijn | N231a


  • Project number: 18-360
  • Length: 34m
  • Width: 3.5m
  • Class: 5kN/m2 + service vehicle
  • Year built: 2019

Infrastructure maintenance usually causes significant inconvenience to local residents and road users. Long closures result in high (economic) costs and great strain on alternative routes. This was recently a challenge for KWS and Van Hattem en Blankevoort during the major maintenance of the N231a near Alphen aan den Rijn - an order from the Province of South Holland - where the road had to be completely closed. In part by using various prefab elements, including a 34-meter-long prefab composite bicycle bridge, they managed to complete the job in just 3 weeks.

This composite bicycle bridge was supplied by FiberCore Europe, where the bridge was prefabricated in their own factory. The complete bridge, including railing and decking, was delivered by special road transport. Due to its low dead weight and buoyancy, the bridge could be temporarily stored in a nearby body of water and floated to the construction site on the day of placement, where two cranes hoisted the bridge in a matter of minutes. After this, it was essentially ready for immediate use.

Precast composite bridges from FiberCore Europe are manufactured with InfraCoreĀ® Inside technology, making them extremely robust. With a lifespan of more than 100 years and the possibility of relocation, they also offer a sustainable, circular solution. In addition, the bridges are virtually maintenance-free and loutproof; provided with an anti-graffiti coating.