Roppen Tunnel, Imst (Austria)
New construction of the 2nd bore of the A12 Inn Valley motorway, parallel to the 1st bore. Length of 5,100 m, cross-section between 90 m2 and 120 m2.
- Conventional cyclical drill and blast heading with immediate installation of supports and reinforcements.
- Loose rock heading of around 400 m, in some sections using bore shield, partially with spiles and lattice girders.
Map
Specific figures
Contract valueCHF 105 million
Construction period2006 - 2010
Length5100 m
Total excavated surface106 m2
Contact for questions about the project | |
|---|---|
| Implenia Industrial Construction | |
| Telefon: +41 43 233 39 90 | |
| E-Mail: Sandra.Guetg@implenia.com | |

