The Stad Tunnel will run for 1.7km and have a 49m height and 36m width. Construction time is expected to be three to four years at a cost of EUR 293M, based off a design study that was concluded in 2010. Excavation is expected to be by drill and blast, with 8Mt of rock needing to be removed.
The tunnel will make passage through a hazardous shipping lane much safer. A combination of currents and topography makes navigation very unpredictable and high waves make the exposed region dangerous. Norwegian press has remarked that “even the Vikings feared this water”.
