• Agriculture
• Buildings
• Civil works
  • Bridges and Tunnels
  • Concrete and Structures
  • Geotechnics
• Dynamics, safety and security
• Education
• Energy
• Environment
• Industry
• Informatics
• Maritime engineering
• Offshore Wind Energy
• Physical planning
• Social sciences
• Transportation
• Waste management
• Wastewater
• Water

Bridges and tunnels are essential elements in our society. NIRAS has great competence in this field and offers consultancy within the following areas:  

• Bridges, over and under passes, for roads, railways, and fauna passages
• Tunnels for roads and railways, defined as larger underground tunnels

The range of projects span over the full life-cycle – from the idea, feasibility study, concept and the planning phase, over designing, supervision, and building management to operation and maintenance, renovation, reinforcement and finally to demolition and replacement of the structures. These operations have been divided into the following professional fields:

• New bridges and tunnels – new design
• Existing bridges and tunnels – inspection, rehabilitation, renovation, and strengthening

NIRAS applies sound engineering principles based on many years of experience. The latest experiences from projects with operation and maintenance, inspection, and renovation of existing structures are thus implemented in the design of new bridges and structures.

Basically, NIRAS performs the tasks on the basis of existing knowledge and competences achieved through project work. NIRAS is, however, not restrained by customary solutions, and often involve innovative and creative alternatives.

Generally, NIRAS focuses on “full solutions”, in that the essential aspects such as economy, environment, aesthetics, function, technique, and execution are considered and adapted to each individual project.

Consulting on bridge and tunnel constructions often requires a multi-disciplinary knowledge beyond the professional key skills. In this field, NIRAS’ broadness and core competences within environment, building, and infrastructure are of great value, and include consultancy on geotechnical investigation, environmental investigation, EIA reports, foundation, hydraulic investigations, pipelines and supply systems, material technology, risk assessments, transport economy, traffic planning, road and railway systems.

Clients are the owners/ administrators of the structures, contractors and development companies in Denmark and abroad.

Design computer programs used in the design works are: AutoCad, MicroStation, Inroads, Inrails, SofiCad and for calculations (FEM programs): ROBOT, Miestra, Fiestra, Strudl and LUSAS.