Strukton and Van Oord are currently working on constructing the intersection of the new metro line with Amsterdam’s busy Central Station. This is a challenge, as Amsterdam's Central Station will remain operational throughout the construction activities.

A circular cofferdam was constructed in the railway station’s central tunnel, involving the insertion of large steel tubes with a 1.80-metre diameter 65 metres into the ground in the station’s weaving section. What is referred to as a ‘sandwich structure’ was constructed from the main hall of the station. Prior to this operation, the foundation of the large corner towers of the station building were replaced by steel piles, with a jack structure ensuring they remain in place. When the circular cofferdam was completed, a tunnel unit was transported from the river IJ by water and immersed beneath the station.

In the meantime, a metro station is constructed deep below the forecourt of the railway station. The first step in this process was the construction of a circular cofferdam with the aid of a diaphragm wall on top of which a roof structure was placed. The remainder of the construction and excavation activities are being performed under this roof, thereby keeping inconvenience to passengers to a minimum.

At the back of the station, the metro line intersects with De Ruijterkade, where the concrete structure for this intersection and part of the road tunnel are being
constructed in an open circular cofferdam.