Switzerland, 2012-2015
General description
Upgrading of the Alpine tunnel of the Swiss rail operator, Chemins de Fer Fédéraux (CFF), between Brig (Valais canton) and Iselle (Italy).
MAIN CHARACTERISTICS
Work on the 19.8-km-long twin-tube tunnel on the Lötschberg Tunnel route comprises:
- modification of the 35 cross-passages,
- construction of 4 new cross-passages,
- enlargement of existing niches and refuges,
- construction of 60 km of ductbanks,
- trackbed lowering over 1.6 km,
- construction of 16 km of drains.
