Main tunnel of the A8 Lungern bypass, Lungern

The Lungern bypass is around 4.25 km long. The main construction is the 3,574 m long Lungern Tunnel, with two-way traffic. Incline 2.2 %.

  • Creation of the 3,574 m long main tunnel using drill and blast (full excavation)
  • Cut-and-cover at north portal: 87.5 m long, cut-and-cover at south portal: 41 m long
  • Lining of safety galleries


Specific figures

Order value

CHF 103.36 million

Construction period

2006 - 2001


4250 m

Total excavated surface

115 m2