- Client: Bergen Light Rail
- Main contractor: Veidekke ASA
- Contractor: Metrostav Norge AS
- Construction period: 11/2021 – 04/2022
- Price: 32 400 000 NOK w/o VAT
Project characteristics:
The project contains 77,5 m of dead end Intrekks tunnel and the extension of the old 370 m Kronstad railway tunnel into a pedestrian and cycling tunnel in the inner city of Bergen.
Project data
Tunnel: | 2 pcs (370 m + 77,5 m) | |
Tunnel profile: | The extension 27 m2 + 96 m2 | |
Excavated volume: | 16 700 m3 | |
Cement grouting: | 70 000 kg | |
Rock bolts: | 4 000 pcs |
Chalenges / Specifics of the project
- strict noise and vibrations limits
- major restriction of blasting works
- limited working area
- site arrangement moving during excavation period
- excavations in dense urban area under the main hospital
- low overburden up to 30 m
- use of electronic detonators
Photogallery