2.3 & 2.7 km

long tunnels

Increase the capacity and reduce travel times

Construction of 10 kilometres of dual-track branch line between the towns of Sandbukta and Såstad, of which 5.5 kilometres is underground, crossing the municipality of Moss. The main works include two tunnels of 2.3 and 2.7 kilometres respectively and a 500-metre cut-and-cover tunnel, some 60 kilometres south of Oslo.

The project is part of Bane NOR’s intercity programme to promote communications between the country’s major cities and decongest traffic in the area around the capital city of Oslo.


The main objective of the project is to increase the capacity and reduce travel times on the Østfold line. The project will increase the train frequency to four trains per hour between Moss and Oslo. Together with the Follobanen project, it will cut the travel time between Moss and Oslo by 20 minutes, reducing it to 30 minutes.


  • Location: 60 kilometres south of Oslo, Norway.
  • Contract type: Construction.
  • Infrastructure: Two tunnels of 2.3 and 2.7 kilometres respectively, a 500-metre cut-and-cover tunnel, and a new station in central Moss.
  • Year of scheduled entry into operation: 2024
  • Year of full completion: 2026


  • Part of Bane NOR’s InterCity programme.
  • A 2.3 km tunnel from Sandbukta in the north to the centre of Moss in the south.
  • Constructed using drilling works and conventional blasting.
  • The tunnel, which is 13.5 metres wide and 10 metres high, has a cross-section of 130 square metres.
  • The breakthrough of the tunnel took place on 10 March 2021 in Sandbukta.
  • Increase the capacity and reduce travel times on the Østfold line.
  • Aumentar la capacidad y reducir los tiempos de viaje en la línea de Østfold.

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