Currently the largest transport project in Norway, the Follo Line Project will be the country’s largest twin tube rail tunnel. Its construction started in 2014 with completion planned to 2021 and it will compromise around 64 km of new railway tracks.
The Follo Line will form the core part of InterCity development southwards from Oslo. The project will comprise a 20 km long tunnel which will be Norway’s first long twin tube rail tunnel.
More facts and figures:
- 22 km new double track line from Norway´s capital to the public transport center of Ski
- includes extensive works at Oslo Central Station and the construction of a new station at Ski
- includes the necessary realignment of tracks for the existing Østfold Line on the approach to Oslo Central Station and between the tunnel and the new Ski Station
- will comprise the construction of around 64 km new railway tracks
- will comprise a 20 km long tunnel; Norway´s longest railway tunnel to date and the longest rail tunnel in the Nordic countries
- to be excavated mainly with tunnel boring machines (TBM), but also by drill & blast and drill & split
- the first long railway tunnel in Norway with separate twin tunnels
- provides increased traffic capacity to/from Oslo
- will enable a 50 % reduction in journey time Oslo-Ski
- designed for speed up to 250 km/h
- important preparatory work started in 2013 and will be completed summer 2015
- five EPC contract to be signed in 2015
- main construction phase commence in 2015
- scheduled for completion in the end of 2021
Source | Norwegian National Rail Administration
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