The Worlds longest road tunnel




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24.5 kilometres; the Lærdal tunnel is the world’s longest road tunnel. The road links Aurland and Lærdal, in the heart of Sogn, and provides a ferry-free connection between Oslo and Bergen.

Popular round trip through the world’s longest road tunnel

A round trip full of contrasts is to drive through the Lærdal Tunnel, then stop by the fjord in Flåm, and return over the stunning Aurlandsfjellet plateau on the popular Snow Road (Fv. 243) between Aurlandsvangen and Lærdalsøyri. This is an opportunity to experience the mountain from both outside and in!

The tunnel opened November 2000. Lighting is a central factor – every 6 km the area is widened and these rock chambers are fitted with special lighting. Safety equipment and monitoring are installed in the tunnel.


  • Building period: 1995-2000.
  • Project costs -2000 value: Nok 1050 million.
  • Tunnel cost: Nok 930 million.
  • Price per metre for finished tunnel: Nok 38 000.
  • Turning points: 15
  • Breakdown lay-bys: 48
  • Heaviest traffic in an hour: 400 vehicles
  • Average daily traffic over a year: 1000 vehicles

Other locations in this part of Norway:

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