The Oresund is basically a double-track railway and motorway bridge across the Oresund strait between Scania and Denmark. The bridge runs nearly 5-miles from the Swedish coast to the artificial island of Peberholm, which lies in the middle of the strait. The crossing of the strait is completed by a 4km underwater tunnel, called the Drogden Tunnel, from Peberholm to the Danish island of Amager. It’s the longest combined road and rail bridge in Europe. Continue reading for another video, more pictures and additional information.
The connection between Peberholm and the artificial peninsula at Kastrup on Amager island, the nearest populated part of Denmark, is through the 4,050 m (13,287 ft) long Drogden Tunnel (Drogdentunnelen). It comprises a 3,510 m (11,516 ft) undersea tube tunnel plus 270 m (886 ft) entry tunnels at each end. The tube tunnel is made from 20 prefabricated reinforced concrete segments � the largest in the world at 55,000 t each � interconnected in a trench dug in the seabed. Two tubes in the tunnel carry railway tracks, two carry roads and a small fifth tube is provided for emergencies. The tubes are arranged side by side.