After an intensive preparation process with the client, Hollandia Infra carried out this multidisciplinary renovation work as the main contractor, while the port company had to remain fully operational on the other adjacent jetties. In broad terms, the scope was the execution of a complete steel, mechanical and electrical engineering renovation of the 3 double-deck construction facilities and the associated pedestrian bridges. This multidisciplinary work has been carried out in close collaboration with Hollandia UK (on-site execution) and Qualter Hall (electrical / hydraulic work).
The activities for Hollandia generally include the disassembly, repair, blasting, preservation and, where necessary, replacement of the Ro-Ro installation. In addition, new, heavier overhead cranes were installed, for which the existing steel construction had to be significantly strengthened. In total this takes about 40,000 hours. Hollandia designed, manufactured and installed the new steel structures, deck sections and so-called “fingers” and driving flaps of the Ro / Ro scaffolding, including the dismantling and disposal of the parts to be replaced. At the Heijningen location, Hollandia Structures created new walkways “access ramps” and steel structures to strengthen the main steel structure. The existing crane girders will also be replaced due to this. the increase in lifting capacity from 10 to 25t.
Hollandia UK took care of the execution of the work at the construction site in Dover, consisting of overall construction site management, disassembly and assembly of, among other things, the pedestrian bridge, the replacement of plating, the assembly of new steel structures and the blasting of parts of the existing structures. Qualter Hall took care of the design, manufacture and operational delivery of the hydraulic and electrical installations with additional work.