- Client: Federal Roads Office FEDRO, Thun branch
- Site management/reference person: Lombardi SA Bellinzona / Manuel Walder
- Project manager: Erhard Burgener
- Site manager: Celine Ludi
- ARGE: ARGE HB Simplon
- The construction work was carried out by the consortium Interalp Bau AG (50%) and Frutiger AG (50%).
- Lead management: Interalp Bau AG
- Technical management: Interalp Bau AG
- Commercial management: Frutiger AG
- Construction period: March/2022-Nov./2025
- Construction costs: 32 million
Technical data:
- Length: 1.9 km
- Concrete 8'000 m3
- Pavement 7'000 to
- Steel 550 tons
- Gravel 8'000 m3
- Soil material 9'700 m3
- Prefabricated parts 300 tons
Project description:
On the one hand, the structural measures are aimed at ensuring compliance with standards, and on the other hand, the durability and serviceability of the building fabric is to be increased with repair measures.
General work:
- Safety measures (SOS niches, extinguishing water system)
- Construction of a new roadway drainage system incl. manholes
- Renewal of the verges
- New cable conduits and shafts
- Renewal of road surface and substructure (replacement of gravel box and surface over the entire stretch)
- Concrete repairs
- Surface protection in the spray water and spray mist area
Casermetta tunnel:
- Installation of a drainage separation system with separate drainage of roadway water and mountain water
- Underpinning of the vault inside the tunnel for the purpose of installing vault drainage on both sides
Galleries:
- Repair of the gallery supports and the rear walls using sprayed mortar
- Renewal of the dilatation joints of the ceilings, removal of Gerber joints
- Renewal of the roof parapets of the galleries
- Renewal/improvement of the gallery roof drainage
- Increasing impact safety by renewing or building new guide walls
- Replacement of the ceiling anchoring (various) and the column anchoring (Alpjen)
- Reinforcement measures against rockfall (tunnel portal)
- Repair of roadway slab (Alpjengalerie)
Bridges:
- Replacement of service lines
- Removal or replacement of roadway crossings
- Replacement of bridge bearings
- Replacement of the lateral brackets (Hohsteg Bridge)
- Reinforcement of the bridge deck (Hohsteg Bridge)
- Replacement of the towing slabs
- New sealing and new roadway structure
Further work:
- Construction of a new retention basin
- Expansion of the Casermetta South BSA area
- BSA temporary structures: temporary cable protection pipes
Sub-projects:
- Hohsteg Bridge Year of construction: 2022
- Hosteggalerie Year of construction: 2022-2023
- Casermetta Gallery Year of construction: 2024-2025
- Casermetta bridge Year of construction: 2025
- Tunnel portal Year of construction: 2022-2023
- Casermetta tunnel Year of construction: 2022-2023
- Alpjengalerie Year of construction: 2024
- Retention basin: Year of construction 2024
Requirements:
- National road works
- Underground work
