Civil engineering works for sewer and drinking water pipelines in Haßleben, 1st construction phase

Civil engineering works for a separation system and drinking water pipelines in Haßleben, 1st construction phase: General services, removal of 40 m² concrete paving and 715 m² unbound layers, 1,155 m³ earthworks for pipeline trenches with manhole excavations, 1,850 m² dewatering with sheet piling, installation of 130 m wastewater sewer DN/OD 200 PP, 55 m rainwater sewer DN/OD 250 PP, 75 m rainwater sewer DN/OD 315 PP, 220 m house connection sewer DN/OD 160 PP, installation of 4 pcs. wastewater manholes PP DN/OD 1000 and 3 pcs. wastewater manholes SB DN 1000, 4 m protective pipe steel DN 400, construction of 244 m³ frost protection layer, 570 m² gravel base layer and 40 m² concrete paving. Additionally, civil engineering works for drinking water pipelines: removal and restoration of 5 m² concrete paving and 5 m drainage channel, removal of 165 m² unbound layers, 190 m³ earthworks for pipeline trenches, 400 m² shoring, installation of 200 m locating tape for drinking water, 2 m protective pipe steel DN 200, 6 pcs. wall breakthroughs/penetrations, construction of 62 m³ frost protection layer and 155 m² gravel base layer. Planning services are required according to section 5.2 of the construction description. Execution period: 12.10.2026 to 30.04.2027. Securities: 5% performance bond, 3% warranty bond. Required qualifications: liability insurance, quality assurance for sewer construction RAL-GZ 961, AK 2, further items as per the tender documents.

Tender documents

Additional details