BAM Infra Netherlands | Raalte-Ommen, The Netherlands
Underpasses at main road N348
The provincial road N348 between Raalte and Ommen has unfortunately been the scene of numerous accidents, prompting the province of Overijssel to take measures to improve traffic safety. Previously, the N348 intersected the Oude Twentseweg and the Dalmsholterdijk, but now underpasses have been created at these locations. In this new arrangement, traffic can continue unhindered, without dangerous intersections.
Commissioned by BAM Infra Nederland, Genap started in December 2019 to create a dry construction pit by applying a geomembrane construction at one of the two underpasses. Unique in this work was the necessity to work both ‘in dry conditions’ and ‘in wet conditions.’
Both underpasses have now been completed, achieving a significant improvement in traffic safety in the Netherlands.
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![Dry installation of a submerged road surface in Burgum viewed on the central axis](https://genap.com/app/uploads/2023/12/droge-aanleg-verdiepte-wegligging-centrale-as-1536x1536.jpg)
Dry installation
In dry installation, a synthetic construction is applied for, among others, access ramps, underpasses of tunnels, aqueducts, and sunken roadways.
![N348 underpass construction aerial view](https://genap.com/app/uploads/2024/07/Luchtfoto-N348-Ommen-Raalte-1536x1536.jpg)
Under water installation
By applying a synthetic layer, a waterproof barrier is created, allowing the infrastructure to be constructed in dry conditions.