Lötschberg base tunnel

Lötschberg base tunnel (Switzerland) - New railroad line across the Alps

Client / Owner

BLS - AlpTransit AG, Thun.

Execution

1994 - 2005

 

 

Description of various elements

Exploring drift

  • Length: 9,5 km
  • Section: 20 m2
  • Excavation with TBM

Base tunnel

  • 2 single-track tubes
  • Length: 35,5 km
  • Section: 65 m2
  • Excavation with TBM and blasting

Steg adit

  • Length: 3,2 km
  • Section: 65 m2
  • Excavation with blasting

Mitholz adit

  • Length: 1,6 km
  • Section: 80 m2
  • Excavation with blasting

Ferden adit

  • Length: 4,2 km
  • Section: 67 m2
  • Excavation with blasting

Services

  • Study of variants
  • Preliminary project
  • Definitive project
  • Tendering and contractual documents
  • Implementation project
  • Supervision of the works
  • Technical equipment's
  • Environmental study

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