By-pass Tunnel of Lungern, Exploration Gallery
The future tunnel for driving around Lungern is 3'965 m long overall. It branches out from the existing Brünig road above the town and avoids the urban sector in a large bow under the right side of the valley. The exploration gallery makes it possible to identify in detail the geological conditions. It then serves the purpose of supplying the basic data for designing and building the main tunnel.
Dati principali
- Length of tunnel: 3'210 m
- Diameter: 4.75 m
Committente
Office of Public Works of the Canton of Obwalden
Progettazione
IM Maggia Engineering Ltd., Locarno & IUB Engineering Services Ltd., Berne
Periodo di costruzione
1999–2002
Costi dell'opera
21 Mio. CHF
Prestazioni
- Design
- Site management
- Supervision of works