Oresund Bridge is a combined railway and motorway bridge across the Oresund strait between Sweden and Denmark. The bridge runs nearly 8 kilom from the Swedish coast to the artificial island of Peberholm in the middle of the strait. The Oresund Bridge is the longest combined road and rail bridge in Europe and connects two major metropolitan areas: Copenhagen, the Danish capital city, and the Swedish city of Malmö.
It begins construction in 1995 and is one of the world’s tenth Bridge. The bridge is 16 km，which is composed of the subsea tunnel in the west, artificial island in the middle and cross-sea bridge. 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 long Drogden Tunnel.
It comprises a 3,510 m immersed tube plus 270 m entry tunnels at each end. Two tubes in the tunnel carry railway tracks, two carry roads and a small fifth tube is provided for emergencies. It is currently the world’s most spacious undersea tunnel, where Sinorock self drilling rock anchor is often used. Oresund Bridge is currently the largest cable-stayed bridge with a biggest load capacity in the world.