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Norway awards largest ever rail tunnel contract

Norway’s national rail authority, Jernbaneverket, has announced that it has appointed a joint venture of Acciona and Ghella to undertake the tunnelling on its largest railway contract to date.

Under the deal, the joint venture will work with designers Peab and Atkins to construct the tunnel boring machine (TBM) and drill and blast twin tube tunnels for the Follo Line Project.

The Follo Line work is currently Norway’s largest transport project and work on the new rail link from Oslo to a major ski resort includes construction of the country’s longest rail tunnel at 20km. The deal with Acciona and Ghella is the second of five major contracts for the project to be awarded.

Work on site is expected to start this summer and the rail line is scheduled for completion in late 2021.

Excavation of an underground TBM assembly hall, which formed the first contract awarded, is currently underway. Four TBM will be used for the work with drill and blast used for construction of a 1km section at the northern end of the tunnels.

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