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Surveys and investigations at De Nieuwe Meer interchange

Since being awarded the contract for the large-scale reconstruction of the De Nieuwe Meer interchange at the end of 2022, the TriAX construction consortium has not been resting on its laurels. The work is expected to begin in late 2024, but all kinds of preparations are already happening in the background. For example, the construction consortium made up of Besix, Heijmans and Dura Vermeer is taking advantage of this period to build a relationship with companies, residents and other interested parties around the interchange. But that is not all. TriAX has recently been carrying out a range of land and soil surveys in the run-up to the design phase of the project, which has now started. The waterbed surveys around the De Nieuwe Meer interchange have more or less been completed, and those based on land are continuing. We provide an overview below:

Soil samples, sonar survey and test trenches

In recent months, soil samples have been taken around the Schinkelbrug bridge. TriAX did this by placing a pontoon on the water with a small crane on it. These soil samples (known as soundings) will enable us to chart the structure and composition of the soil. A sonar boat was also used to assess the water depth and structure of the bed. On dry land, we used a cherry picker to assess the technical condition of the Nieuwe Meersluis and the Schinkelbrug TriAX will be carrying out several other land-based surveys between now and the end of the year. Soil samples will be taken in various places and we are digging test trenches to identify where any cables and pipelines might be located.

Schinkelbrug bridge
TriAX is also using ground radars

Height measurements

Later this year, TriAX will also start conducting height measurements on surrounding buildings. Monitoring equipment will be used to record and monitor how much a building moves. To do this, special bolts measuring around 5 cm are fitted to the walls of buildings and are able to determine the exact location of the object. Carrying out these measurements at such an early stage will give us a good impression of the movement of the buildings when not under the influence of our (future) work. This will enable a fair baseline assessment. We will be fitting several dozen buildings in the area with these bolts. The exact buildings will be determined based on the sensitivity of the underlying ground. Owners of the buildings involved will be notified in advance by TriAX.


The reconstruction of the De Nieuwe Meer interchange is part of the Zuidasdok project. We are building a new flyover and bridges across the Schinkel and widening the A10 Zuid from four to six lanes in each direction. We are creating the space needed to improve traffic flow on the A10 Zuid and make it safer. To make this possible, major changes are required at the De Nieuwe Meer interchange (and later also at the Amstel interchange). We are regenerating Amsterdam Zuid station and the A10 is being diverted underground at the heart of Zuidas to make room for the expansion of Amsterdam Zuid station.

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