Krausen Trunk Sewer

Summary

The tender concerns construction of the Krausen trunk sewer and related structures, together with removal of existing infrastructure. The works include constructing and removing 750 m of temporary construction road; installing two 715 m sections of DN 1200 sewer and 100 m of DN 300–500 sewer by open-cut construction; building four DN 1000 and 19 DN 2000 manholes; connecting seven DN 300–400 inlets; excavating 10,000 m³ of soil; supporting trenches and shaft excavations; handling and disposing of 5,700 tonnes of soil; removing 29 manholes and the Krausen stormwater overflow basin; filling or sealing sewer sections, raising a watercourse bed, and removing 130 tonnes of rock armouring under flowing water. The submission deadline is 2 November 2026. Check the official tender notice or tender documents for the precise qualification, compliance and exclusion requirements.