Millau Viaduct mid-1998. After undergoing wind tunnel tests, the shape of the road deck was altered, and detailed corrections were made to the design of the pylons. When the details were eventually finalised, the whole design was approved in late 1998. Once the Ministry of Public Works had taken the decision to offer the construction and operation of the viaduct as a grant of contract, an international call for tenders was issued in 1999. Five consortia tendered: Piers were built with Lafarge high performance cement. The pylons of the Millau Viaduct, which are the tallest elements (the tallest pylon – ) were
Werra Viaduct, Hedemünden Werra Viaduct, Hedemünden The Werra viaducts near Hedemünden, Germany are two bridges crossing the valley of the river Werra. They are located in southern Lower Saxony and provide crossings for the A 7 motorway and the Hanover-Würzburg high-speed rail line. The bridges are located 33 metres apart from each other. The bridges cross the Werra river, the B 80 and the Kassel to Eichenberg railway line at a maximum height of 59 metres. A first bridge was erected at the site in 1937. The bridge was destroyed near the end of World War II, and replaced by a temporary bridge