With a focus on sustainable, buildable, and economically optimal solutions, we design some of Norway’s largest transportation and infrastructure projects.
We develop tunnels, rock structures, and civil engineering solutions for roads, railways, power supply, water supply, wastewater treatment, parking, and other types of facilities built in rock.
Typical services delivered in the field of tunnels and rock engineering:
- Design of new tunnels and rock structures
- Rehabilitation of road and railway tunnels
- Design of tunnel structures, installations, and outfitting
- Blasting plans
- Research and development projects
- Underwater road tunnels
Underwater tunnels are among the most challenging and innovative feats of modern infrastructure. We have contributed through design, consultancy and specialist expertise to the development of the majority of today’s underwater tunnels in Norway. Drawing upon our experience with some of the most complex projects, Norconsult delivers solutions that seamlessly blend safety, innovation and efficiency.
Methods and principles in the areas of:
- Excavation methods
- Grouting and rock stabilization
- Waterproofing and frost protection
- Noise, dust, vibrations, and water management during excavation
- Safety and work environment during construction and operation
Jens Petter Henriksen
Department Head – Tunnels and Rock Structures
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Projects in Tunnels and Rock Engineering
Kattås Water Treatment Plant
Today, parts of Asker and Bærum are supplied with water from Holsfjorden. To ensure safe and clean drinking water in the future and reduce the amount of color in the water, a new water treatment plant will be established as a mountain facility at Kattås. Norconsult is responsible for the design and engineering.
E39 Rogfast
E39 Rogfast will become the world’s longest underwater road tunnel, approximately 27 km long, and is part of the national initiative for a ferry-free E39 from Kristiansand to Trondheim. The project also aspires to be Norway’s first “climate+ road project,” and involves the planning and design of the E39 Rogfast tunnel from Harestad in Randaberg municipality to Laupland in Bokn municipality. Norconsult contributes across 24 disciplines.
Underwater Tunnels in the Faroe Islands
Norconsult has designed four key tunnels in the Faroe Islands since 2002. The new 10.8-kilometer-long Sandoy Tunnel, which runs under the fjord from Gamlarætt on Streymoy to Traðardalur on Sandoy, was opened on December 21, 2023.