Viaduct with larger spans, typically lack sufficient horizontal and vertical clearance for large ships. See the Chesapeake Bay Bridge-Tunnel. The Millau Viaduct is a cable-stayed road-bridge that spans the valley of the river Tarn near Millau in southern France. Designed by the French bridge engineer Michel Virlogeux, in collaboration with architect Norman Robert Foster, it is the tallest vehicular bridge in the world, with one pier's summit at 343 metres (1,125 ft)—slightly taller than the Eiffel Tower and only 38 m (125 ft) shorter than the Empire State Building. It was formally dedicated on 14 December 2004 and opened to traffic
Aguessac D907 goes north-east from the village to Riviere-sur-Tarn and the D167 goes west by a tortuous mountain route to Saint-Germain. The famous Millau Viaduct (Viaduc de la Garrigue) is on the A75 autoroute immediately to the west of the commune. The commune is mixed forest and high country farmland. There are many streams flowing through the commune: the "Ruisseau de Malbose" forms the northern border of the commune, the "Lumansonesque" forms the eastern border flowing into the Tarn which forms the southern part of the eastern border. The Lumansonesque is fed by the "Barbade" with its numerous tributaries which forms