Nordnes

• Total project is 5’810 m long (T9.5, 71 m²) double lane road tunnel, 100m bridge, technical room caverns and tunnel widenings
• Construction site located over the arctic circle
• Mountain at high risk for big landslides, local permafrost
• Geology: Gneiss
• Excavation method: drill & blast
• Excavated length and volume: 5’970 m, 470’000 m³
• Inner lining PE-foam & shotcrete: 70’000 m²
• Portals cut & cover: 50 m and 15 m
• One 100 m long bridge (prestressed, 450t reinforcement, 2’000 m³ concrete)
• Dredging of sea bottom and new filling for a new secondary road (49’000 m³)
• Dumping of excavated material at sea (420’000 m³)

Impressions