Which is the longest road tunnel in Norway, and what is it like to drive through?
Length, lit rock chambers, toll and the 2026–2031 upgrade.
Short answer
Norway's longest road tunnel is the Lærdal Tunnel on the E16 between Aurland and Lærdal, which is 24,509 metres long and also the world's longest road tunnel. Every 6 km the tunnel widens into a rock chamber with special lighting. There is no toll, but from 16 November 2026 it closes 18:00–06:00 for an upgrade lasting until 2030/31.
Why
- Statens vegvesen gives the length as 24,509 metres, calls it the world's longest road tunnel and says it opened in November 2000.
- Visit Norway lists 48 breakdown lay-bys and 15 turning points in the tunnel, with safety equipment and monitoring installed.
- The upgrade to today's safety requirements starts on 16 November 2026, and buses will be let through at set times while the tunnel is closed.
Details
The tunnel is part of the E16 between Bergen and Lærdal and is free to drive. During the upgrade, Statens vegvesen plans 12-hour closures from 18:00 to 06:00, with separate arrangements for emergency vehicles and medical services.
Tip
Check the traffic information from Statens vegvesen before an evening drive between Aurland and Lærdal, since the tunnel will be closed at night while the work goes on.
What may differ
The closures depend on how the work progresses: Statens vegvesen says more traffic may be let through, also during night work, once the heaviest blasting and securing work is done.
People also ask
- How long is the Lærdal Tunnel?
Sources
This answer is for reference only. Closure times can change, so check Statens vegvesen before you travel.
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