Kocher Viaduct Kocher Viaduct On the Kocher Viaduct () near Schwäbisch Hall in Germany the Autobahn 6 crosses the Kocher valley between Heilbronn and Nuremberg. With its maximum height of 185m above the valley bottom, it is the highest viaduct in Germany, and was also the bridge with the tallest pillars in the world before the Millau Viaduct, France was completed in 2004. The nine spans of this prestressed concrete girder bridge cover a length of 1128m, the individual span lengths being 81m for the outer two and 138m for the remaining seven. Pillar height varies from 40m to 178m. The bridge
Millau Viaduct Vinci Group specialising in prestressing. It installed the cable stays and put them under tension, while the prestress division of Eiffage was responsible for prestressing the pillar heads. The steel road deck, and the hydraulic action of the road deck were designed by the Walloon engineering firm Greisch from Liège, Belgium, also an information and communication technologies (ICT) company of the Walloon Region. They carried out the general calculations and the resistance calculations for winds of up to . They also applied the launching technology. The sliding shutter technology for the bridge piers came from PERI. The bridge's construction cost