Construction works in the city of Duisburg

Summary

The tender concerns maintenance and rehabilitation of sewer channels in Duisburg city area, to be carried out in a closed construction method by repairing damaged joints and cracks in the Petersstr, Römerstr and Am Kiekenbusch in Duisburg, as well as related works in Duisburg-Duissern and Homberg (Rheinstr 3Haltungen Ei 700/1050; Wallensteinstraße 4 Haltungen KAS 1900). The work is performed manually, and damage records based on older video footage must be supplemented by new inspections. The project includes crack and rubble repairs, cleaning, injection processes not allowed, channel cleaning by HDR, water management, and restoration works, along with documentation (photographs, measurements, construction logs) and traffic control/road closures subject to local permits. The contract duration is 90 working days, with a schedule that follows traffic approvals. Bidders must provide evidence of professional liability insurance and comply with personnel qualifications and safety requirements.