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
Millau country to the rigors of continental climate. Millau is a sub-prefecture of the Aveyron department in the Occitanie region. The Community of Communes of Millau Grands Causses was created on June 22, 1989 with Aguessac, Compeyre Creissels Millau Paulhe. Today the community has 14 towns with Comprégnac, Saint-Georges-de-Luzençon La Roque-Sainte-Marguerite, Saint-André-de-Vézines, Mostuéjouls, Peyreleau, Rivière-sur-Tarn and Veyreau. The education establishments in the town of Millau report to the Academy of Toulouse. The Public school is the "College Marcel Aymard", a technological and professional General School. The Private school is the "College and Lycée Jeanne d'Arc". Vocational education can be found at