The contract encompasses the installation of track and catenary, high and low-voltage electrification, signalling and telecommunications systems.

Installation work will begin in January 2019 and is due to be completed in autumn 2021. Most of the work will take place in the line’s 18.5km twin-bore tunnel, which will be the longest railway tunnel in Scandinavia.

The contract is the fifth and final turnkey contract to be awarded for the Follo Line project and is also the first turnkey contract to be awarded for railway engineering since Bane Nor was established at the beginning of this year.

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