The Norwegian National Rail Administration (Jernbaneverket) - the Norwegian government agency for the management of rail services - awarded the Follo Line EPC TBM Contract for design, procurement and subsequent construction in 2015 to "Acciona Ghella Joint Venture" (AGJV).

In this context, AGJV has entrusted Italferr, in a joint venture with Lombardi SA (Switzerland), with the task of independent verification of the Follo Line execution project, a new double-track railway line between Oslo and Sky, with speeds of 250 km/h, starting from the Norwegian capital's Central Station.

It will be the longest possible underground journey in Scandinavia: twenty-two kilometers of double-tunnel, for a total of 64 kilometers of new tracks that will free the southeastern outskirts of Oslo from traffic and enhance public mobility in small towns around the capital.

The work has been completed.


Verification of design drawings for Railway Systems

Double-bore railway tunnel with development of about 19 km per bore
Intermediate underground rescue area, including TBM assembly chambers, rescue tunnels and associated by-passes, in Åsland
Interface with the operators of the Transmission Grids of the 3 countries and the design of the connection between substations and existing high voltage lines (at 110kV and 330kV)
2 escape tunnels, each approximately 3 km long, and associated by-passes
Electromechanical equipment, including the ventilation and smoke extraction system, airtight doors and fire-extinguishing system
Railway systems (with the exclusion of signalling)