List of tunnels in the Alps

The entrance to Mont Cenis tunnel from the Italian side (Bardonecchia)

There is a large number of tunnels in the Alps of Central Europe. They have the advantage of provide shorter routes and faster journey times and avoid narrow, winding roads over mountain passes which may well be affected by winter conditions. This list is intended to give an overview of the main Alpine tunnels.

A "list of the longest tunnels in the world" is here.

Germany

Füssen Border Tunnel

France

Mont Cenis Tunnel (railway) and Fréjus road tunnel
Mont Blanc Tunnel (road tunnel)
Tenda Tunnels (road and railway)
Col de Tende Road Tunnel (one of the oldest long road tunnels, 3.2 km)
Buco di Viso (mule track, oldest tunnel in the Alps)

Italy

Mont Cenis Tunnel (railway) and Fréjus road tunnel
Great St Bernard Tunnel (Gran San Bernardo / Grosser Sankt Bernhard, road tunnel)
Mont Blanc Tunnel (road tunnel through the highest mountain in the Alps)
Simplon Tunnel (railway tunnel)
Tenda Tunnels (road and railway)
Col de Tende Road Tunnel (one of the oldest long road tunnels, 3.2 km)
Buco di Viso (mule track, oldest tunnel in the Alps)

Austria

Vorarlberg

Achrain Tunnel (3,340 m)
Amberg Tunnel (2,978 m)
Arlberg Straßen Tunnel (13,972 m)
Arlberg Tunnel (10,249 m, railway tunnel)
Erzberg Tunnel (5,700 m, in planning)
Langen Tunnel (2,433 m)
Letze Tunnel (2,612 m, in planning)
Pfänder Tunnel (6,718 m)

Tyrol

Arlberg Road Tunnel (13,972 m)
Arlberg Railway Tunnel (10,249 m, railway tunnel)
Brandberg Tunnel (2,130 m)
Felbertauern Tunnel (5,304 m)
Inntal Tunnel (12,696 m, railway tunnel only for goods traffic)
Harpfnerwand Tunnel (2,590 m)
Landecker Tunnel (6,955 m)
Lermoos Tunnel (3,168 m)
Perjen Tunnel (2,993 m)
Pianner/Quadratscher Tunnel
Roppener Tunnel (5,095 m)
Strenger Tunnel (5,851 m)
Tschirgant Tunnel (4,310 m, under construction)

Salzburg

Felbertauern Tunnel (5,304 m)
Ofenauer Tunnel (1,390 m)
Hiefler Tunnel (2,004 m)
Katschberg Tunnel (5,439 m)
Schmitten Tunnel (5,111 m)
Schönberg Tunnel (2,988 m)
Tauern Road Tunnel (6,401 m)
Tauern Railway Tunnel (8,550 m)

Carinthia

Ehrentalerberg (3,345 m)
Gräbern Tunnel (2,148 m)
Karawanken Tunnel (railway) (7,976 m)
Karawanken Tunnel (motorway) (7,864 m)
Koralm Tunnel (32,900 m, railway tunnel under construction)
Katschberg Tunnel (5,439 m)
Oswaldiberg Tunnel (4,307 m)

Upper Austria

Bartl Kreuz Tunnel (2,000 m)
Bosruck Tunnel (5,500 m)
Geißwand Tunnel (2,102 m, under construction)
Klaus Tunnel (2,144 m)
Lainberg Tunnel (2,278 m)
Pfaffenboden Tunnel (3,430 m)
Spering Tunnel (2,852 m)
Unterweitersdorfer Berg Tunnel (4,500 m, in planning)

Lower Austria

Semmering Scheitel Tunnel (3,489 m)
Wienerwald Tunnel (13,350 m, railway tunnel under construction)

Styria

Bosruck Tunnel (5,500 m)
Falkenberg Tunnel (3,000 m, in planning)
Ganzstein Semmering Tunnel (3,489 m)
Ganzstein Tunnel (2,135 m)
Gleinalm Tunnel (8,320 m)
Gratkorn Tunnel Nord and Süd (635m / 660m, 798m / 786m)
Herzogberg Tunnel (2,007 m)
Koralm Tunnel (32,900 m, railway tunnel under construction)
Plabutsch Tunnel (9,919 m)
Pretallerkogel Tunnel (446m / 535m)
Schartnerkogel Tunnel (1,167m / 1,232m)
Selzthal Tunnel (1,010m / 964m)
Spital Tunnel (2,597 m)
Tanzenberg Tunnel (2,523 m)
Bruck Tunnel (1237m/1250m)
Rottenmann Tunnel (400m)
Wald Tunnel (2,924 m)

Vienna

Lainzer Tunnel (12,800 m, railway tunnel under construction)
Wienerwald Tunnel (13,350 m, railway tunnel under construction)

Switzerland

See also: List of tunnels in Switzerland

Longest tunnels

Gotthard Base Tunnel (railway tunnel, under construction until 2015, 57 km)
Lötschberg Base Tunnel (railway tunnel, 34.6 km)
Simplon Tunnel (railway tunnel, 19.8 km)
Vereina Tunnel (narrow gauge railway tunnel with car transportation, 19 km)
Gotthard Road Tunnel (road tunnel, 16.9 km)
Ceneri Base Tunnel (railway tunnel, under construction until 2016, 15.4 km)
Furka Base Tunnel (narrow gauge railway tunnel with car transportation, 15.4 km)
Gotthard Rail Tunnel (railway tunnel, 15.0 km)
Lötschberg Tunnel (railway tunnel, 14.6 km)
Zimmerberg Base Tunnel (railway tunnel, 9.4 km)
Seelisberg Tunnel (road tunnel, 9.2 km)
Ricken Tunnel (railway tunnel, 8.6 km)

Other well-known tunnels

San Bernardino Tunnel (road tunnel, 6.6 km)
Great St Bernard Tunnel (road tunnel, 5.9 km)
Albula Tunnel (narrow gauge railway tunnel, 5.9 km)
Furka Summit Tunnel (narrow gauge railway tunnel , heritage railway, 1.9 km)
Munt la Schera Tunnel (road tunnel)

Slovenia

Karawanken Tunnel (motorway)
Karawanken Tunnel (railway)

Sources

Uwe A. Oster (ed.), Wege über die Alpen. Von der Frühzeit bis heute, Darmstadt, 2006, ISBN 3-89678-269-X.
www.AlpenTunnel.de Historic railway crossings through the Alps