Strait of Messina Bridge have made the span more than 60% longer than the Akashi-Kaikyo Bridge in Japan—the largest suspension bridge in the world at . Plans called for four traffic lanes (two driving lanes and one emergency lane in each direction), two railway tracks and two pedestrian lanes. In order to provide a minimum vertical clearance for navigation of , the height of the two towers was to be . This would have been taller than the Millau Viaduct in France (currently the tallest bridge in the world at ). The bridge's suspension system would have relied on two pairs of steel cables,
Bleu des Causses refining fourmes is much more restrictive. It concerns some regions of the district of Millau: Campagnac, Cornus, Millau-Ouest, Millau-Est, Peyreleau, Saint-Affrique, and at the towns of Trèves and of Pégairolles-de-l'Escalette. The terroir includes, among others, land caussenardes who gave their name to this cheese. These are characterized by a limestone subsoil drainage, causing drought when rain are scarce. Rich soil is low, giving short and bushy vegetation. However, this naturally sparse vegetation is aromatic and contributes to the flavor of the milk. The refining zone has vertical limestone cliffs carved by the erosion of the rivers Tarn, Doubie, and Jonte.