147 Meter long railroad tunnel
13 Million CHF
The existing natural stone vault of the tunnel will be completely demolished and widened by means of pipe umbrella tunnelling while maintaining the same alignment. The new tunnel profile will receive a foil sealing and a reinforced shotcrete inner vault.
Special features: Demolition of the two portal structures and new construction with natural stone cladding; planning, production and exact laying of around 90 pieces of invert and carriageway slabs as well as planning, production and installation of an around 20m long auxiliary bridge in the area of the Cadera opening section to ensure accessibility.