Germany – Construction work – A43, TB Blankenstein BW 4509627 Korrosionsschutz, Hattingen

A43, TB Blankenstein BW 4509627 Corrosion protection, Hattingen: approx. 660 m removal and reinstallation of grating; approx. 537 m installation of DN 450 stainless steel longitudinal drainage; approx. 40 m installation of DN 125 stainless steel longitudinal drainage; approx. 60 m rehabilitation of DN 125 transverse pipes using liners; approx. 70 m² area removal of pigeon droppings; approx. 410 m³ pumping of water from WL North; approx. 90 days maintenance of long-term traffic control measures; approx. 20 weeks winter construction work; 1 unit of construction site setup including access roads, utilities, and facilities; 1 unit of corrosion protection complete renewal; 1 unit of suspended scaffolding with enclosure, construction and dismantling; 1 unit of protective tunnel over L924, construction, maintenance and dismantling; 2 stair towers, construction; 3 ladders, replacement; 2 emergency drains, construction; 1 unit of pigeon protection netting WL North assembly: 2 units; create traffic sign plans for full closure: 2 units; dismantle long-term traffic control measures: 15 units; "new to old" surcharge for pipe transitions