Renewal of the Cruquius Bridge
Published on: 13/10/2025
DISA assisted Hollandia Infra with the subsea works during the installation of the new Cruquius Bridge. Between 2023 and 2025, the bridge is being renewed to be circular, energy-neutral, and low-maintenance, following the principles of Industrial, Flexible, and Demountable (IFD) construction.
The bridge towards Heemstede will be replaced and widened to create more space for cyclists and pedestrians, while the bridge towards Hoofddorp will undergo major maintenance. The project aims to improve safety and traffic flow for all road users on the N201, with completion expected by the end of 2025.
The project is carried out in collaboration with Van Hattum en Blankevoort, Hollandia Infra, KWS Infra, Vialis, Gemeente Heemstede, Gemeente Haarlemmermeer, Vervoerregio Amsterdam, and Hoogheemraadschap van Rijnland.
Installation of the Cycling Underpass
The first sections of the new cycling underpass at the Cruquius Bridge (N201) have been installed! Constructed in five parts at Hollandia Infra, the sections were transported last week by ship from Krimpen aan den IJssel to the construction site in Cruquius. The largest section measured 70 metres long and weighed 103 tonnes.
During the bridge construction, the DISA team was deployed to:
- Accurately measure the positions of steel piles
- Cut piles at height
- Install and weld sealing caps
- Ensure correct positioning and welding of pile connections
- Install filler pieces between connections and bridge sections
- Assist with the placement of bridge segments
In cooperation with Hollandia Infra, DISA ensures the construction process proceeds safely, efficiently, and to the required precision standards.
Commissioned by the Province of North Holland, the underpass will be completed in the coming months by the contractor consortium Van Hattum en Blankevoort and Hollandia Infra. Once assembled on site, finishing works such as lighting, railings, and road markings will be added. Cyclists are expected to use the underpass by the end of 2025.
Built from weather-resistant steel, the underpass is circular and sustainable, offering a long service life with minimal maintenance, contributing to future-proof infrastructure.
Watch the video of the transport and installation of the cycling underpass below.