As part of the Vaarweg1 project, we are working on the renovation of the second bridge in Delft: the Hambrug. Following the successful refurbishment of the Kruithuisbrug, it is now the Hambrug’s turn.
What does the work involve?
The renovation of the Hambrug covers several elements. We are refurbishing the bridge deck, repairing the civil engineering parts of the abutments and piers, upgrading the control, automation and electrical systems, partially replacing the bridge drive, and renovating both the steel roadway and the footpaths.
Smart transport and on-site renovation
The bridge deck is being renovated at our yard in Krimpen aan den IJssel. Together with our subcontractors, we therefore carefully prepared the transport. Initially, the plan was also to relocate the counterweight structure, but due to permit conditions this approach was revised. Instead, a scaffold tent construction is being placed over the counterweight in Delft, allowing safe and efficient renovation on site.
An impressive hoisting operation
On Thursday 30 January, an important milestone took place: the lifting out of the bridge deck. While one crane was sufficient to detach the counterweight structure from the deck, two cranes were required to hoist the deck out and position it at an angle. This angled position made it possible to transport the deck safely through Delft’s narrow canals.
Midway through the route, transport through Rotterdam posed an additional challenge. The angled position meant that the load was just too high. At Spaanse Polder, the deck was therefore transferred onto a flat pontoon, allowing it to continue its journey safely to the Hollandia yard in Krimpen aan den IJssel.
