CFF - Line bienne

CFF - Line Bienne - Chaux-de-Fonds - Sonceboz portal of the Tournedos tunnel


CFF - Infrastructure Lausanne


2012 - 2015

Total costs

0.9 mio EUR

Project description

Construction of a cut-and-cover tunnel using secant pile walls, with the concrete poured in two phases to permit continuous use of the road.

Intense three-day shutdown of the CFF line to undertake the earthworks in a top-down manner below the existing works; to complete the piled wall; to install the front wall; and to bring the tunnel into service.

Services provided

Phases :

  • Scheme design
  • Approval process for the plans
  • Tender process
  • Direction of the works


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