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
Michel Virlogeux Large Concrete Bridge Division, and in 1987 of the large Bridge Division, Steel and Concrete. During twenty years he designed more than 100 bridges, including the Normandy Bridge which held the world record for longest cable-stayed bridge for four years. In 1995 he left the French Administration and set up as independent consulting engineer; his major achievements include his participation in the construction of the 'Second Tagus Crossing', the Vasco da Gama Bridge in Lisbon, and the design of the Millau Viaduct in France. Several of his bridges have received architectural awards. Since 1977 Dr Virlogeux has been a part-time