At the end of March, two 450-tonne mobile cranes were deployed in the area of axis 30b. In a series of tandem lifts, girder sections were hoisted to a height of around 65 metres. Weighing approximately 40 tonnes each, these individual components form a crucial link in the construction process. They are used to transfer loads from the supporting scaffolding to the auxiliary towers in a controlled manner. The single lift required precise coordination between all parties involved, as well as the utmost precision in execution.

At the same time, the webs of the superstructure were concreted in construction sections 19 and 20. A total of around 850 cubic metres of concrete was poured. This corresponds to approximately 120 concrete mixer loads, which were coordinated in tight succession. Two concrete pumps with boom lengths of 67.5 and 56 metres were used. The concrete was pumped up to a height of 60 metres and placed there using hydraulic distribution booms. The concreting took place over several hours and was carried out in two shifts. The combination of the great pumping height, confined space and precise timing placed high demands on everyone involved.

The current work follows on seamlessly from the installation of the stay cables that has already begun and represents a further important step towards the completion of the bridge’s overall structure.