Gudvanga Tunnel
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Guvanga Tunnel or Gudvangatunnelen connects the village of Gudvangen (Aurland municipality, Sogn og Fjordane county) at the head of the Nærøyfjord with the Undredalen valley and is part of European route E16.
At 11,428 m in length, it is Norway's second longest road tunnel. It was opened on December 17, 1991.
Around 500 m beyond the eastern portal of Gudvangatunnelen, a new tunnel begins - the 5,053 m long Flenja tunnel. Around 1 km beyond that is the 1,363 m Fretheim tunnel. Approximately 7 km further to the east is the Lærdal tunnel - this is 24.5 km long (plus one 700 m tunnel before) and is the world's longest road tunnel. This means that in a 51.5 km section of the E16, 43 km of that distance consists of tunnels.