Tarn (river) a mean flow of approximately . The Millau Viaduct spans the valley of the Tarn near Millau, and is now one of the area's most popular attractions. The tributaries of the Tarn include: The Tarn separates the Narbonne and Aquitaine basins. The Tarn passes through the following departments and towns: The Millau Viaduct, the tallest bridge in the world, carrying the A75 autoroute across the Tarn Gorge near Millau, opened in December 2004. The Tarn is famous for its brutal floodings, which are the most dangerous in Europe along with the Danube. The flooding of March 1930 saw the Tarn
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