Dutch infrastructure company Hollandia Services has completed the renovation of the Boekhorstbrug in Den Haag, Netherlands, using Enerpac cube jacks for a seamless and innovative approach. This advanced lifting technology allowed the team to remove and reinstall the bridge with minimal disruption to the local community, enabling refurbishment work to be carried out off-site.
The Boekhorstbrug, a hydraulically operated table bridge, required extensive maintenance due to aging infrastructure. The project included replacing outdated electrical and hydraulic systems, renewing the road surface, and applying a new coating system.
Traditional methods for removing a bridge of this type would involve using a mobile crane or a vessel-mounted crane. However, these options were not viable for the Boekhorstbrug. Instead, Hollandia’s engineering team devised an ingenious plan using Enerpac SCJ-100 cube jacks.
The bridge was lifted to a height of 3 meters, allowing a flatbed trailer with a slewing ring to be positioned underneath. The bridge was then lowered onto the ring, rotated 90 degrees, and transported through residential areas and highways to a wharf in Krimpen aan den IJssel for refurbishment.
“Our challenge was how to lift the bridge to a height of approximately 3m and be able to lower it back down in a short space of time. The Enerpac SCJ-100 cube jacks provided the perfect solution,” said Emiel Maas, Project Coordinator at Hollandia Services.
The Enerpac cube jacks demonstrated their efficiency, taking just 20 minutes to lift the bridge from 0.75m to 3m. The slewing ring was then positioned, and the bridge lowered to 2.3m for transportation. Upon returning the renovated bridge to its original location, the process was reversed, ensuring precise and safe reinstallation.
The SCJ-Series Cube Jack combines a base lifting frame with self-aligning, lightweight steel cribbing blocks, offering a safer and more efficient alternative to traditional methods. The system provides high-capacity, stabilized lifting with synchronous operation via a split-flow pump, ensuring controlled and reliable movement of large structures like the Boekhorstbrug.
