Alvaschein
General information on the tunnel
- Tunnel type
- Road tunnel
- Number
- 92
- Year of operation
- 1975
- City
- Alvaschein
- Road identification number
- H417a (Schinstrasse)
Contact data
- Client / clients representative
- Kanton Graubünden , 7001 Chur
Basic data
- Salutation
- no informations
- Title
- no informations
- Family name
- Tiefbauamt des Kantons Graubünden
- First name
- no informations
Correspondence address
- Company name
- Kanton Graubünden
- Departement
- Tiefbauamt des Kantons Graubünden
- Position
- no informations
- Road
- Grabenstrasse 30
- Postcode
- 7001
- City
- Chur
- County
- no informations
- Country
- no informations
- Telephone number
- 081 257 37 00
- Cell telephone number
- no informations
- Fax
- 081 257 21 57
- Email address
- no informations
- Website
- no informations
Technical data
- Number of tubes
- 1
- Total length of all tubes (m)
- 927
- Excavation volume (m3)
- 61'182
- Excavation cross section (m2)
- 66 63-69
Excavation and lining
- Excavation method
- Drill and blast
Operation
Geological data
- Main encountered rock types
- Metamorphic rock
- Difficulties due to rock / geological conditions
- Average
- Water inflow during heading
- Average