The ambitious project to construct a fixed rail and road link across the 65-mile (105-kilometer) Oresund Strait was agreed to by the Danish and Swedish governments in March 1991. The resulting 10-mile (16-kilometer) combination of submarine tunnel, artificial island, and bridge, carrying a double-track electrified railroad and four lanes of freeway between Kastrup, Denmark, and Lernacken, Sweden, was officially opened on 1 July 2000. Responding to complex social, cultural, economic, ecological, geological, and technological constraints, the transoceanic international highway is a major achievement of design and logistical skill, demonstrating that high technology and environmental sustainability are compatible.
Each country was responsible for extending its transport system to connect with the link. A/S Oresund built the Danish land works, while Svensk-Danska Brof