The bridge inspection and survey at the Merck Group’s T15 structure was successfully completed on January 19, 2025. Thanks to the good coordination of all partners involved, the work was carried out safely and efficiently and was completed well before the end of the planned closure period. Special thanks go to Projekt Real for the comprehensive organization from the railroad side, Wemo-tec for the reliable provision of the necessary test equipment and Merck for the excellent cooperation and organization. CSZ-Bauwerksprüfung is proud to be part of this project, which is characterized by the highest precision and excellent teamwork.

Technical details – precision and challenges
The bridge inspection was carried out in accordance with the relevant standard DIN 1076 for the inspection of bridges and engineering structures. The location of the bridge, which was only accessible via the Deutsche Bahn tracks, presented a particular challenge. In this context, both Merck’s safety regulations and Deutsche Bahn’s specifications were strictly adhered to in order to ensure safe execution. One highlight was the use of the MBL 1750T under-bridge inspection device, which enabled a precise inspection of the difficult-to-access bridge – crucial for identifying potential weak points at an early stage.

Time frame – planning and efficiency
The bridge inspection (total inspection time of the structure) took a total of 8 hours. However, planning had to be carried out 6 months in advance in order to take into account the Deutsche Bahn closure periods. Despite the complex requirements, the project was completed safely and without delays.

Results and benefits – a contribution to safety
Although the full evaluation is still pending, the project is already providing valuable insights. Once the analysis is complete, recommended remedial measures will be proposed to keep the bridge in optimum condition and ensure long-term safety. This project is of great importance to Merck, as the safety of the infrastructure is crucial for smooth operations. Regular inspections are essential to ensure the longevity of the bridge.

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