Tromsøysund Tunnel

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Tromsøysund Tunnel (Tromsøysundtunnelen)
Tromsøysundtunnelen - The Tromsøya side P1.jpg
The tunnel entrance on the Tromsøya-side in Breivika with UNN in the background.
Location Tromsø, Troms, Norway
Coordinates 69°40′27″N 19°00′32″E / 69.67417°N 19.00889°E / 69.67417; 19.00889Coordinates: 69°40′27″N 19°00′32″E / 69.67417°N 19.00889°E / 69.67417; 19.00889
Route E08
Opened 3 December 1994
Character Automotive
Length 3,500 m (11,500 ft; 2.2 mi)
No. of lanes 4 (two each direction)
Lowest elevation −102 metres (−335 ft)
Grade 8.2%

The Tromsøysund Tunnel (Norwegian: Tromsøysundtunnelen) is an undersea highway tunnel under the Tromsøysundet strait, connecting the island of Tromsøya with the mainland in the city of Tromsø in Troms county, Norway.[1]

The tunnel is part of European route E08, (whose northern terminus is on the island itself) and it consists of 2 tubes, each with two driving lanes. The two tubes are not equal in length; one tube is 3,500-metre (2.2 mi) long and the other is 3,386-metre (2.1 mi) long. The lowest point in the tunnels is 102 metres (335 ft) below sea level, and the maximum grade is 8.2%. The two tubes are linked by 15 service-tunnels.[2]

The tunnel opened on 3 December 1994 to relieve Tromsøya's only other mainland connection, the Tromsø Bridge, which had been plagued by severe traffic congestion for more than a decade. The tunnel is located to the north of the bridge; on the island side it emerges just below the University of Tromsø and the University Hospital of North Norway, both major sources of traffic between the island and the mainland; on the mainland side it emerges at Tomasjord which is centrally located between the densely popluated suburbs of Tromsdalen and Kroken.

See also[edit]


  1. ^ Store norske leksikon. "Tromsøysundtunnelen" (in Norwegian). Retrieved 2012-12-09. 
  2. ^ Merzagora, Eugenio A.; Lotsberg, Gunnar (eds.). "Road Tunnels in Norway > 3 000 m". Road Tunnels in Norway. Retrieved 2012-12-09. 

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