Assen A28 viaduct

ecoduct

Located over the A28 motorway near the Assen TT racetrack, this bridge connects the A28 to both racetrack and existing regional transport network. The City Council envisioned a green entrance gate to the city. That’s why the sides of the bridge are covered in greenery.

We choose to design a single span bridge without supports, to further enhance its gateway image.

collaboration

Our main focus was on designing the bridge edges in such a way that they would be covered in greenery right away and that they would stay that way in the future.

For this, we joined forces with Mostert de Winter, an engineering firm specialised in green facades, rooftops and sound barriers. Furthermore, we collaborated with major Dutch construction firms BAM and Grontmij.