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 World Wildlife Fund (WWF), "France Nature Environnement", the national federation of motorway users, and Environmental Action. Opponents advanced several arguments: Two weeks after the laying of the first stone on December 14, 2001, the workers started digging the deep shafts. There were four shafts per pylon; deep and in diameter, assuring the stability of the pylons. At the bottom of each pylon, a tread of in thickness was installed to reinforce the effect of the deep shafts. The of concrete necessary for the treads was poured at the same time. In March 2002, the pylons emerged from the ground. The