Complete reconstruction of the state road N08 Interlaken-Ost-Brienz, Switzerland


Bundesamt für Strassen ASTRA, Filiale Thun, CH-6300 Thun

Higher supplier

ARGE Marti Brienzersee

Construction period

January 2021 – December 2022

Description of main objects:
Complete reconstruction of the state N08 between Interlaken Ost and Brienz.

Section length: 13,83 km maintenance section no. 60
Number of bridges and other civil engineering structures: 38
Number of tunnels: 3
Tunnel length:

  • tunnel Sengg 870 m
  • tunnel Chüebalm 1.325 m
  • tunnel Giessbach 3.340 m

Construction technology:

  • in the renewal of road infrastructure – work on the drainage system, on the extension of the reinforced arm, on the installation of anti-noise surfaces
  • at tunnels – complete renewal of cable routes and roads on both sides in tunnels, new drainage embankments, new surface, reflective coating, renovation and additional suspension of the intermediate ceiling, including a completely new ventilation system in the Giessbach tunnel
  • standard reconstruction work on all civil engineering structures, sealing on bridges, laying a surface layer on the entire section