Germany – Construction work for water and sewage pipelines – 19/TSch-0112 PISA III ERN

For TWL: Replacement of approx. 171 m of drinking water pipe DN 100/125/150 cast iron (GG) with DN 100/150 cast iron (GGGFzm) using trenchless construction according to WN 322. Installation of approx. 339 m of drinking water pipe DN 100/300/400 cast iron (GGG) using open trench construction. Replacement of approx. 526 m of drinking water pipe DN 80/100/125/150/200/250/450 cast iron (GG/dGe) with DN 80/100/150/200/300/400 cast iron (GGG) using open trench construction. Replacement or new installation of approx. 74 m of drinking water pipe DN 25/32/40/50 PE (HA) in protective casing DN 110PE using open trench construction. Installation and removal of approx. 705 m of temporary piping. For sewer: Demolition/new construction of approx. 1,945 m of stormwater, combined, and wastewater sewers DN 250-DN 500 using open trench construction, average depth approx. 3.8 m. Renovation of approx. 351 m of stormwater and wastewater sewers DN 200-DN 300 using cured-in-place pipe (CIPP) lining, including preparatory robotic and packer work, as well as robotic and packer work in the stormwater sewer (egg-shaped profile 500/750). Grouting of approx. 684 m of stormwater sewers DN 250-500. Demolition/new construction/repair of approx. 71 manholes and one chamber structure. New construction/repair of approx. 34 street drains. Road construction: final restoration of the roadway of approx. 4,978 m² in asphalt construction, of which approx. 4,978 m² is asphalt on the roadway or sub-concrete, and approx. 412 m² is paved, as well as final... Restoration of pedestrian and cycle paths using paving stones (approx. 850 m²)