| Country | Tunnel | Length | Date of opening | Line / Notes |
| Austria - Italy |  Basis Brenner |
56 000 m | PRJ | Brenner
line, 2 tubes Information (pdf) |
| France - Italy | Basis Mont d'Ambin |
52 110 m | 2015 | Pilot tunnel 2001, works will start in 2006 from St.Jean de Maurienne (F) to Bruzolo (I) |
| Marocco - Spain | Gibraltar |
38 700 m | After 2010 | Subsea length: 27.75 km |
| Austria | Koralm |
32 800 m | After 2010 | New planned line Graz - KlagenfurtSp |
| Spain | Pajares Base |
24 667 m | 2010 | León -
Oviedo project. 2 tubes pdf |
| Austria | Lainzer - Wienerwald |
22 791 m | 2012-2015 | Wien - St. Pölten (Two connected
tunnels) |
| France | Belledonne |
20 000 m | 2012-15 | Lyon - Torino project |
| France | La Grande Chartreuse |
20 000 m | 2012-15 | Lyon - Torino project. Freight only, Chambery bypass |
| Greece | Lianokladi - Domokos | 20 000 m | PRJ | Base tunnel |
| Switzerland | Zimmerberg-Base |
19 700 m | 2013 | Planned elongation of tunnel Zürich - Zalwil (9400 m) |
| Austria | Semmering basis | 19 200 m | Under construction, stopped | |
| Australia | Civ 4 | 15 000 m | PRJ | Parramatta - Chatswood line, tender early 2001 |
| Switzerland | Ceneri-Basis |
15 000 m | 2015 | |
| Croatia | Cicarija | 14 300 m | Planned on Rijeka - Istria line | |
| Finland | Savio |
13 500 m | 2008 | Northern freight access for Yuosaaren harbour project |
| Turkey | Bosporus |
13 300 m | 2006+ | Subsea tunnel, 1800 m immersed part |
| Italy | Bussoleno bypass | 12 050 m | 2015 | Torino - Lione. Pilot tunnel 2001 |
| India | Jammu - Udhapur | 12 000 m | 2007 | On 35 km link in Kashmir |
| France | Epine II | 12 000 m | 2012-15 | On high speed line to Chambery |
| France | Paris - CDG | 10 800 m | 2011 | Paris Gare de l'Est - CDG Airport fast link project |
| China (Taiwan) | New Kuanying | 10 300 m | ||
| Australia | Civ 1 | 9 800 m | PRJ | Parramatta - Chatswood line, tender early 2001 |
| Germany | Flughafen |
9 470 m | PRJ-2011 | Stuttgart, between airport and main station |
| Spain | Carrascoy | > 9 000 m | 2007 | Madrid - Valencia/Murcia high speed network |
| Germany | Katzenberg | 8 980 m | PRJ | Karlsruhe - Basel |
| Spain | San Paio (not final name) | 8 750 m | 2007 |  Línea Ourense -
Lubián (pdf) |
| Croatia | Krapina 4 | 8 500 m | Planned on new Zagreb - Varazdin line | |
| Germany | Albaufstieg | 8 430 m | PRJ | Stuttgart - Augsburg |
| Germany | Bleßberg | 8 314 m | PRJ | Ebensfeld - Erfurt |
| Spain | Atocha - Chamartín II | ~8 000 m | 2007? | Cross Madrid suburban tunnel |
| Germany | Silberberg | 7 391 m | PRJ | Thüringen, Ebensfeld - Erfurt |
| Germany | Finne | 6 886 m | 2007 | Erfurt - Leipzig/Halle, Works start: 2001 |
| Spain | Atocha - Chamartín III | 6 800 m | 2007? | Cross Madrid tunnel for normal gauge high speed trains |
| Italy - Switzerland | Arcisate - Stabio | 6 700 m | PRJ | Lugano - Malpensa Airport |
| Sweden | City |
6 000 m | 2009 | Malmö. Part of connection to Öresund bridge |
| Sweden | Citybanan | 6 000 m | 2011 | Stockholm south - Tomteboda |
| Austria | St. Andrä - Aich | 6 000 m | PRJ >2010 | Koralmbahn Graz - Klagenfurt |
| Germany | Albastieg | 5 950 m | PRJ | Stuttgart - Augsburg |
| Spain | A Madroa | 5 910 m | 2007 | Corridor Atlantíco Vigo - La Coruna |
| Australia | Civ 2 | 5 530 m | PRJ | Parramatta - Chatswood line, tender early 2001 |
| Spain | Oural II (not final name) | 5 350 m | 2007 | Línea Ourense - Lubián |
| Taiwan | New Nanao | 5 340 m | ||
| Germany | Rastatter | 5 000 m | PRJ | Karlsruhe - Basel |
| Germany | Frankfurt | 5 000 m | PRJ | Frankfurt am Main/Hessen |
| Spain | Girona II | 5 000 m | 2007? | Barcelona - Perpignan for parallel broad gauge line |
Warm thanks to Eugenio A. Merzagora, Walter Brummer, Sönke Roggenkamp, Jeroen de Leeuw, Dániel György Kemény, Eva Edblom, Gunnar Sandh, Kazutaka Taniguchi
See country lists for new projects < 5 000 m
© 2003. Copying from the data pages is not allowed without adding the source name: "The World's longest Tunnel Page"
This page was last modified on November 27, 2004
