- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 20 Jun 2017
Stad Ship Tunnel
In April 2017, plans were given the go-ahead for the Stad Ship Tunnel in Norway; the first of its kind in the world. The project is part of the Norwegian National Transport Plan 2018-2029, smoothing the way for the Norwegian Coastal Administration (NCA) to begin development work.
The Stad sea is the most exposed and dangerous part of the coast of Norway. Particularly complex and unpredictable navigational conditions are created by the combination of currents and subsea topography. This causes very high multi-directional waves, which can continue for several days after heavy wind has abated.
Studies conducted in 2000/01 and 2007/08 analysed a range of cross-sections and routes for the tunnel. The final design crosses the narrowest point of the Stad Peninsula, with waters that are sufficiently shielded to allow shipping to use the tunnel.
The tunnel will be 1.7 km long, 37 m high and 26.5 m wide. The tunnel’s upper part will be run as per conventional road tunnel. Once that is complete, construction will progress downwards, layer by layer, in a process known as pallet blasting. Thresholds will be placed at both ends of the tunnel to enable dry tunnel operations.
In total, approximately 3 million cubic metres of rock will be removed by vehicles and large barges. There is a plan to establish a new landmass and expand existing areas of neighbouring municipalities with some of the removed material.
The estimated cost of the project is NOK 2.7 billion. There are optimistic predictions that the tunnel could be complete and open for shipping by early-2023. However, the project must first undergo a process of quality assurance and detailed cost estimates before being presented to the Norwegian parliament to approve funding. With parliamentary approval, construction work could begin in 2019.
Images and content courtesy Norwegian Coastal Administration.
 Related articles on Designing Buildings Wiki
Featured articles and news
Read our introductory article to the completion date in construction contracts.
Almost 90% of freight in London is moved by road. The River Thames could add much needed extra capacity.
National Infrastructure Commission warn that large infrastructure projects are at risk of falling behind.
The quality of Cambridge owes as much to its open spaces as to its architectural uniqueness.
If events occur that cause the completion of the works to be delayed then these may be compensation events.
BSRIA's new Building MOTs Scheme is designed to provide guidance on the next steps after compliance.
At an ICE discussion, the focus was on delivering a Northern Infrastructure Strategy based on opportunity for all.
The Considerate Constructors Scheme officially launch the new Ultra Site status for contractors and supply chains.
The risk of specification errors in the cladding sector is "worryingly high" after Grenfell, according to major distributor.
Here is our outline work plan for a private sector design and build project.