Ellingsøy Tunnel
The Ellingsøy Tunnel is a subsea road tunnel in Ålesund Municipality in Møre og Romsdal county, Norway. The tunnel runs between the center of the city of Ålesund on the island of Nørvøya and the village of Hoffland on the island of Ellingsøya. The long tunnel runs under the Ellingsøyfjorden and it is part of National Road 658 and it was constructed as part of the Vigra Fixed Link project which connected several outlying islands to the city of Ålesund and the mainland of Norway. The tunnel opened in 1987 and it was a toll road until 25 October 2009. The 3-lane tunnel has a vertical clearance of and it reaches a depth of below sea level. The steepest parts of the tunnel do not exceed an 8.5% grade.
The Ellingsøy Tunnel has a 'cork screw' spiral under the Hoffland island to span vertical height.
