An oversaturated signalised junction by one of the tunnel entries was to be replaced by a large roundabout. The Steinberg tunnel is a part of the ‘Nordre avlastningsveg’, the new bypass which is to lead traffic across the Trondheim city centre. Locally 'Nordre avlastningsveg' is expected to reduce traffic levels in a congested area, yielding environmental benefits to the surrounding residential areas.
Ramboll’s services have been carried out in cooperation with a number of teams at the Trondheim office.
- Road geometry for portals at Marienborg and Ila
- Retaining walls
- Geotechnical engineering
- Drainage and redesign of existing pipe network
The project was managed by the Infrastructure team at the Ramboll office in Trondheim.