The Follo Line project is currently the largest transport project in Norway and includes the longest railway tunnel in the country. The Follo Line will form the central part of InterCity, south of Oslo. The project will consist of a tunnel of 20 km long and will be the first railway tunnel with double long track in Norway. In addition, extensive works in Oslo Central Station and the construction of a new station in Ski are included. The necessary restructuring of avenues for Østfold line is also planned. Another action included in the project is the construction of about 64 km of new railway lines.
Works on the tunnel, the longest currently in the Nordic countries, will be carried out with tunnel boring machines (TBM) and will provide greater traffic capacity to and from Oslo. It will allow a 50% reduction in travel time between Oslo and Ski. The trains are designed for speeds up to 250 kmh.
Phases of the project
Preparatory works began in 2013 and were completed in 2015. The EPC contracts began last year and will continue throughout this year. The construction of the main phase has already begun and is scheduled to become operational in late 2021.
Norway’s National Rail Administration has awarded Baneservice and Società Italiana per Condotte d’Acqua S.p.A. two new contracts in connection with the Follo Line Project, subproject of Oslo’s Central Station.