The first TBM is already being assembled inside the big assembly chamber.

Last week the cutterhead and several big parts of the first TBM was transported down the 1 km long adit tunnel, to the big assembly chamber. It is in this chamber the two northbound TBMs is constructed. In a similar chamber the southbound TBMs will be assembled.

This first TBM is painted in Oslo-blue colour and is planned to start the excavation towards Oslo in September 2016. It will excavate about 9 km of solid rock on it journey towards Oslo. On an average day the TBM is planned to excavate about 12-15 m tunnel.

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