

What is invisible at first glance can decide everything at second glance: The drainage systems along railway lines — longitudinal canals, transverse passages, intake shafts — ensure that rainwater is drained away from the track body quickly and in a controlled manner. Clogged or defective channels allow water to penetrate the ballast, soften the substructure and endanger the track layout. Klefenz offers the systematic inspection of these systems as an independent service — on DB lines, branch lines and industrial equipment.
The inspection is carried out using camera trolleys, which are designed for the confined dimensions of track channels. Each inspected section is documented on video, damage is assessed according to DB classification and recorded in a structured damage report. Parallel to camera inspection, detected deposits and roots are immediately removed by high-pressure flushing — without separate follow-up measures.
Klefenz recommends regular sewer inspection as part of line maintenance: Carried out once a year, it enables targeted repair planning instead of expensive emergency measures following damage that has already occurred. The Klefenz damage report is structured in such a way that it can be fed directly into the DB's internal maintenance planning.

At Klefenz, sewer inspection is not isolated — it is closely interlinked with track construction. Drainage systems are often also checked during threshold changes and track maintenance measures in order to minimize costs for the client. If you have any questions about sewer inspection on your route, please contact us directly.







Whether you are planning a demanding construction project or looking for a new career path – Klefenz stands for experience, reliable collaboration and a clear commitment to quality. If you want to realise a project with us or become part of our team, we look forward to starting the conversation and taking the next step together.
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