Fehmarnbelt portal

Fehmarnbelt: World’s longest immersed tunnel

18 km long and 40m underwater. Fehmarnbelt, the world's longest immersed tunnel, showcases innovative thinking and challenges engineering standards. Ramboll is advisor to the client, Femern A/S, within the Ramboll-Arup-TEC Joint Venture partnership.

a train driving through a green landscape in the sun

Denmark’s Digital Rail Signalling Roll-out

Denmark’s ERTMS rollout is the world’s largest digital rail signalling upgrade, improving safety and reliability nationwide.

Øresund Fixed Link: Strengthening the ties

The Øresund Fixed Link promotes cultural and economic cooperation between Denmark and Sweden, standing as a testament to engineering excellence, environmental stewardship, and cross-border collaboration, while also incorporating a special consideration for nature.

The golden bridge at Slussen, Stockholm

Slussen bridge: Stockholm centrepiece

We worked with design, drawings and calculations for the steel superstructure for the new bridge in central Stokcholm, through which 400,000 people pass on public transport per day.

New Storstrøm Bridge

Denmark's third largest bridge at around 4 kilometres across, the new bridge will have both regional and international importance. It will contribute to the rail corridor between Copenhagen and Germany.

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Mall of Tripla, Helsinki

The Mall of Tripla in Helsinki is one of the most challenging recently completed large scale construction projects in the capital area of Finland. It establishes a commercial concentration in the area, combining the services of a shopping centre, wellbeing and entertainment under one shared roof.

The Helsinki Airport development programme includes for example an impressive new terminal 2 with arrival and departure halls, new public transport arrangements and an extended Schengen gate area.  Ramboll is the main construction engineer for the project and is responsible for the structural design, design of infrastructure, geotechnical, heating, water, ventilation, cooling, electrical, automation and traffic planning. Helsinki Airport Terminal 2 Expansion, Vantaa, Finland

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Sustainably expanding Helsinki Airport

To meet the future traffic demands and improve passenger services, we collaborated to significantly expand terminal area in Helsinki Airport. The terminal expansion project is part of Helsinki Airport development programme.

Gull Wing Bridge UK IABSE winner 2025 with Arup

A landmark for movable bridge engineering

The Gull Wing Bridge is a major piece of infrastructure for Lowestoft in the UK, connecting the north and south of the town with its record-breaking rolling bascule design. As one of the most advanced movable bridges in the UK, it improves travel across Lake Lothing while keeping the waterway accessible to maritime traffic.

A four-lane roadway with cars, central greenery, streetlights, tall fencing, and lush trees in the background.

Marselis Tunnel: Transforming Aarhus' infrastructure

The Marselis Tunnel will provide a faster, more direct, and safer connection between Aarhus Port and the E45 motorway via Åhavevej, while diverting heavy traffic away from Marselis Boulevard.

Kanalmursprogrammet

Kanalmurs programmet - Preserving the past, enabling the future

In the heart of Gothenburg, a generational renewal project is underway to preserve and modernise the city’s historic canal walls. The Kanalmursprogrammet (Canal Wall Programme) aims to meet modern safety and mobility standards while maintaining their deep cultural significance.