Sewer rehabilitation on Hauptstraße in Wetterzeube by pipe lining

Summary

The contract covers rehabilitation of the sewer on Hauptstraße in Wetterzeube by installing resin-impregnated pipe liners. The works include excavating 74 m³ of soil, lining 227 m of DN 300 pipe and 133 m of DN 400 pipe, constructing five DN 1000/800 concrete manholes, and rehabilitating five manholes. The works are scheduled from 11 January to 30 June 2027. Bids must be submitted electronically in German by 10:00 on 28 October 2026; price is the sole award criterion. Bidders must demonstrate suitability through prequalification or the required self-declaration and hold sewer rehabilitation quality marks S27.3 and S42.2. A warranty bond equal to 3% of the gross contract sum, including variations, is required.