Steel-concrete viaduct, Alkmaar
Viaduct across highway A9, Alkmaar
In The Netherlands there are not many bridges with a construction of steel and concrete. The viaduct in Alkmaar is constructed with a…
Maasvlakte 2, Rotterdam
A new and extreme landscape
After having collected sand further out at sea the suction dredgers returned to the coast just outside Rotterdam and raised new land by…
Road expansion A1/A6 Diemen – Almere Havendreef
Between Amsterdam and Almere
It seems an odd question: is it possible to drastically improve the infrastructure of the northern part of the Randstad, between Diemen and…
Road expansion A27/A1
Routing design
Not many people know such a thing even exists, but the motorway A27 (from Breda to Almere) has a routing design described by the Dutch Road…
A20 viaduct, Schiedam
On short notice, an existing concrete viaduct in the Rotterdam ring road needed to be strengthened. To achieve this a steel reinforcement…
Dune viaducts, Rotterdam
In 2012 the infrastructural works of the Maasvlakte 2, an artificial island in the Port of Rotterdam, will be brought into use. The area is…
Ecoduct, Kootwijk
A Pioneering Wildlife Crossing
In the middle of the 1990s, the Dutch authorities developed what was called an National Ecological Network (Ecologische Hoofdstructuur, EHS…
Wildlife Crossing The Borkeld, Rijssen
Just south of the town of Rijssen, the busy A1 motorway cuts through a wooded area that was planted between the 1930s and 1950s. It is…
Wildlife Crossings, Colorado USA
Wildlife crossings in the Rockies
In 2010 the state of Colorado, USA, started a competition to find a design for a system of wildlife crossings. The architectural studio ZJA…
A4 Delft – Schiedam
First Honey Highway of Europe
The A4 Delft - Schiedam (A4DS) motorway, close to the city of Delft and Rotterdam, transects an area of outstanding natural beauty and a…