The Challenge

The 70ton-heavy structure was a HAMCO low-profile arch (SuperSpan), which had to be pulled into the existing structure step by step.
For this procedure special attention had to be paid to the footpoint of the arch structure and the concrete footing, which considerably supported the retraction of such a structure.
Afterwards the gap was filled with concrete section by section.
The redevelopment of the damaged strcuture was carried out without interference of the running traffic above.