• The escape tunnel has been excavated using traditional drill and blast methods.

On February 7, 2023, Bane NOR and the MossIA ANS (formed by ACCIONA and Implenia) celebrated, together with other guests, the breakthrough of the Mossehallen tunnel, included in the Moss railway line (Norway). The escape tunnel - part of the main Mossetunnel - has been excavated using traditional drill and blast methods.

The tunnel is 425 meters long from Mossetunnel in Myra to Mossehallen in Nesparken, with a cross-section of approximately 35 m2 , a width of 5.5 meters and a height of six meters.

ACCIONA and Implenia were awarded the design and construction of nine of the 10-kilometer Sandbukta - Moss - Såstad (SMS2A) project for Bane NOR. The main objective of the project is to increase capacity and reduce travel time on the Østfold line.

The new double-track railroad runs through the municipality of Moss and requires the construction of two main tunnels: the 2.7 km long Mossetunnel in the north and the 2.3 km long Carlbergtunnel in the south. Alongside these, the Mossetunnel escape tunnel and a parallel escape tunnel in the Carlberg tunnel are also under construction.

The project is part of Bane NOR's Intercity program, aimed at promoting connections between the country's main cities and easing traffic congestion in the catchment area of the capital, Oslo.

During the ceremony, Ragnar Reitan, project director of MossIA, highlighted the capacity of the engineering and support team to solve the technical challenges posed by this project, as well as that of all the external partners who have contributed their experience and knowledge, and Bane NOR for their confidence in the consortium.

For his part, Eirik Harding Hansen, project director for Bane NOR, underlined the importance of this construction milestone, achieved without injuries or work-related casualties.