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Jacobs wins design and construction management role on €554m Danish tunnel
27 August 2025

Engineering consultant Jacobs will deliver mechanical and electrical design and construction management services on Denmark’s €554 million Marselis Tunnel in Aarhus, after winning a role on the project.
The global professional services firm will collaborate with consultant Rambøll on the infrastructure project, which will be built in a high-density urban environment.
Construction on the project will start in 2028 and work is currently in the planning and design phase.
The aim of the 2km tunnel is to improve the traffic flow between Aarhus port and the E45 Østjyske Motorway via Åhavevej, a major arterial road.
The tunnel will reroute traffic from Marselis Boulevard, a major artery in the centre of Denmark’s second-largest city, which Jacobs said would also create a quieter and more environmentally friendly urban environment.
Danish Road Directorate senior project manager Michael Schmidt Vosgerau said, “It is a complex task to build a tunnel on one of the busiest access roads to Aarhus. We will need international experience, because there are no similar projects like this that have been delivered before in Denmark.”
Rambøll director of transport-DK Asger Knudsen said, “Rambøll and our partners are proud and honored to be chosen for this important and complex task. We look forward to continuing our constructive and close collaboration with the Danish Road Directorate and to leveraging our combined experience to improve accessibility and enhance the urban space in Aarhus.”
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