The N33: not just a project, but a promise
This month, the N33 is the stage for an impressive operation. BAM Infra Nederland is carrying out large-scale maintenance here on behalf of Rijkswaterstaat, under the banner of Poort van Noord. For project leader Stefan Uiterwijk, however, this is much more than just a routine job. ‘We’re now in year 11 of a 20-year contract,’ he explains. ‘What we’re doing now has to last at least another nine years. And it needs to be safe, sustainable and quiet.’
A motorway in six steps
The resurfacing of the N33 has been divided into six phases: one in June 2025, three in 2026 and two in 2027. The first phase, between Gieten and Assen, is already in full swing. What makes this phase special is the scale and the technology used. ‘We’re replacing the top layer across the full width of the carriageway in one go. This prevents seams and extends the lifespan of the asphalt.’
Sustainable and quiet asphalt
Sustainability is a key focus. ‘We’re using asphalt that contains recycled material. The porous asphalt concrete (ZOAB) surface layer includes 30% recycled materials, and the base layer even contains 50%.’
In areas where houses are close to the road, a double-layered ZOAB is applied – a quieter variant that reduces noise pollution. ‘That’s good not only for the environment but also for quality of life.’
