Stormwater sewer reconstruction on Bahnhofstraße in Diemarden

Summary

The tender concerns reconstruction of the stormwater sewer on Bahnhofstraße in Diemarden, Gleichen, together with restoration works to the road and drainage system. The work includes excavating pipe trenches, laying approximately 105 m of DN 300 pipe and 35 m of DN 160 pipe, building three DN 1000 inspection chambers, and connecting chambers, road gullies, and existing infrastructure. It also covers soil and road-base works, asphalt and traffic-safety restoration, handling excavated and contaminated materials, and cleaning, testing, and carrying out CCTV inspections of the sewer. The contractor must provide, among other items, pressure-test reports and inspection-chamber reports with video documentation. The bid must include the required forms and a price offer meeting the technical specifications. Bids must be submitted electronically through the contracting authority’s platform by 21 October 2026 at 11:30. Price is the sole award criterion; workshops for people with disabilities receive a 15% evaluation bonus and are preferred in the event of an economically equal bid.