EngineeringLength

Longest road tunnel

Record

24.51 km

15.230 mi

Record holder
Lærdal Tunnel

✓ Value cross-checked in a second source

Longest road tunnel
Photo: Svein-Magne Tunli · CC BY-SA 3.0

How the record evolved

Chart of the Longest road tunnel record, from 1882 to today 1882 today 3.182 km 24.51 km

The last record set in each decade, up to the current record (highlighted).

YearRecordHolder
current24.51 kmLærdal Tunnel
16.918 kmGotthard Road Tunnel
13.972 kmArlberg Road Tunnel
11.611 kmMont Blanc Tunnel
5.240 kmVielha Tunnel
3.240 kmQueensway tunnel
3.182 kmCol de Tende Road Tunnel

Put them in order

Sort these records from the oldest to the most recent.

  1. 3.182 kmCol de Tende Road Tunnel
  2. 13.972 kmArlberg Road Tunnel
  3. 5.240 kmVielha Tunnel
  4. 24.51 kmLærdal Tunnel

What to remember

To break the monotony of the drive, the Lærdal Tunnel is split into four sections by three large caverns dug into the mountain. Their lighting evokes the northern lights, and they also give drivers room to turn around. Several stopping points are spread along its 24.51 km.

The tunnel links Lærdal and Aurland in Vestland county, Norway; its southwest end lies about 117 km northeast of Bergen. Work began in 1995 and it opened on 27 November 2000. It carries two lanes of European Route E16 and was the final link of the highway between Oslo and Bergen with no ferry and no difficult winter mountain crossing.

The road tunnel history shows how lengths grew: 3.182 km for the Col de Tende Road Tunnel in 1882, 11.611 km for the Mont Blanc Tunnel in 1965 and 16.918 km for the Gotthard Road Tunnel in 1980. Since 1882, the record length has grown by a ratio of 7.7.

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