This page presents the same tunnels as in list of tunnels by length in separate lists according to the different tunnel types.
Main article: List of longest railway tunnels |
Note: This list only contains tunnels that are longer than 25 km (16 mi).
Note: This list only contains tunnels that are longer than 25 km (16 mi).
Name | Location | Length | Expected completion |
Line |
---|---|---|---|---|
Mont d'Ambin base tunnel[6] | France/Italy (Cottian Alps) | 57.5 km (35.7 mi) | 2029[7] | Lyon Turin Ferroviaire |
Brenner Base Tunnel | Austria/Italy (Stubai Alps) | 55 km (34.2 mi) | 2028[8] | Brenner Railway |
Yigong Tunnel[9][10] | 易贡隧道China (Tibet) | 42.5 km (26.4 mi) | 2030 | Nyingchi–Ya'an railway |
Sejila Mountain Tunnel[9][10] | 色季拉山隧道China (Tibet) | 37.9 km (23.5 mi) | 2030 | Nyingchi–Ya'an railway |
Metropolitan Area Tunnel No. 1[11] | Japan (Tokyo) | 37.168 km (23.1 mi) | 2027+ | Chūō Shinkansen |
Pearl River Tunnel 珠江隧道[12] | China (Guangdong) | 36.043 km (22.4 mi) | 2021 | Guangzhou–Foshan circular intercity railway |
Duomuge Tunnel 多木格隧道[9] | China (Tibet) | 36 km (22.4 mi) | 2030 | Nyingchi–Ya'an railway |
Gaoligongshan Tunnel | China (Yunnan) | 34.5 km (21.5 mi) | 2022 | Dali-Ruili Railway |
Chukyo Area Tunnel No.1[11] | Japan (Aichi) | 34.210 km (21.3 mi) | 2027+ | Chūō Shinkansen |
Koralm Tunnel | Austria (Koralpe) | 32.9 km (20.4 mi) | 2026[13] | Koralm Railway |
Oshima Tunnel | Japan (Hokkaido) | 32.675 km (20.3 mi) | 2031 | Hokkaidō Shinkansen |
Mangkangshan Tunnel | China (Tibet) | 29.4 km (18.3 mi) | 2026 | Kangding-Linzhi Railway |
Ping'an Tunnel | China (Sichuan) |
|
2023 | Chengdu–Lanzhou Railway |
Semmering Base Tunnel | Austria (Raxalpe) | 27.3 km (17.0 mi) | 2027[14] | Southern Railway |
Valico Tunnel | Italy (Liguria, Piedmont) | 27.250 km (16.9 mi) | 2023 | Tortona–Genoa high-speed railway |
Sasson Tunnel | Japan (Hokkaido) | 26.2 km (16.3 mi) | 2031 | Hokkaidō Shinkansen |
Musil Tunnel | South Korea (Wonju) | 25.1 km (15.6 mi) | 2020[needs update] | Jungang Line |
Minshan Tunnel | China (Sichuan) | 25.0 km (15.6 mi) | 2023 | Chengdu–Lanzhou Railway |
Southern Alps Tunnel[11] | Japan (Nagano, Shizuoka, Yamanashi) | 25.019 km (15.5 mi) | 2027+ | Chūō Shinkansen |
Main article: List of longest subway tunnel sections |
Only continuous tunnel sections should be included, at least 35 km (22 mi) long, excluding branches from the longest tunnel.
See also: List of metro systems § Metro systems under construction |
Only continuous tunnel sections should be included, at least 30 km (19 mi) long.
Name | System | Stations | Length | Expected completion |
---|---|---|---|---|
Line 15 | Paris Métro | (circle route, all underground) | 75 km (46.6 mi) | 2022–2030 |
Bolshaya Koltsevaya line | Moscow Metro | (circle route, all underground) | 69 km (42.9 mi)[15] | 2018[a] |
Cross Island line | Mass Rapid Transit (Singapore) | (Linear route with branch section, all underground) | 65.5 km (40.7 mi)[b] | 2029–2031 |
Line 18 | Guangzhou Metro | Guangzhou East railway station to Wanqingsha | 65.3 km (40.6 mi) | 2021-2022 |
Thomson–East Coast line | Mass Rapid Transit (Singapore) | (Linear route, all underground excluding last 2 km [1.2 mi]) | 56.4 km (35.0 mi) | 2019–2024[c] |
L9 / L10 | Barcelona Metro | 43.7 km (27.2 mi)[d] | 2016[e] |
Main article: List of longest road tunnels |
Name | Location | Length | Year | Tubes | Road | Notes |
---|---|---|---|---|---|---|
Lærdal | Norway (Lærdal - Aurland) | 24.51 km (15.2 mi) | 2000 | 1 | E16 | Longest road tunnel in the world. |
Yamate Tunnel | Japan (Tokyo) | 18.20 km (11.3 mi) | 2007 2010 2015 |
2 | C2, Shuto Expressway | |
Zhongnanshan Tunnel | China (Shaanxi) | 18.04 km (11.2 mi) | 2007 | 2 | G65, Xi'an-Zhashui Expressway[16] | |
Jinpingshan Tunnel[17][18] | China (Sichuan) | 17.54 km (10.9 mi) | 2011 | 2 | between sites of Jinping-I and Jinping-II Hydropower Station | 2 tubes, 17.540 km and 17.485 km |
St. Gotthard | Switzerland (Uri - Ticino) | 16.918 km (10.5 mi) | 1980 | 1 | A2/E35 | "World's longest tunnel" 1980 - 2000 |
Zigana Tunnel[19] | Turkey (Maçka - Torul) | 14.481 km (9.0 mi) | 2023 | 2 | D.885, E97 | |
Ovit Tunnel | Turkey (İkizdere - İspir) | 14.346 km (8.9 mi) | 2018[20] | 2 | D.925 | |
Ryfylke tunnel | Norway | 14.3 km (8.9 mi) | 2019 | 2 | 13 | The longest underwater road tunnel in the world |
Arlberg | Austria (Vorarlberg - Tyrol) | 13.972 km (8.7 mi) | 1978 | 1 | S16/E60 | "World's longest tunnel" 1979 - 1980 |
Xishan Tunnel | China (Shanxi) | 13.654 km (8.5 mi) | 2012[21] | 2 | S56 Shanxi Taiyuan-Gujiao Expressway | Left tube:13.654 m, right tube:13.570 m |
New Erlangshan Tunnel[22] | China (Sichuan) | 13.433 km (8.3 mi) | 2018 | 2 | Ya'an-Kangding Expressway | Left tube: 13.433 m, right tube: 13.381 m |
Hongtiguan Tunnel | China (Shanxi) | 13.122 km (8.2 mi) | 2013[23] | 2 | S76 Shanxi Changzhi-Pingshun Expressway | Left tube: 13.122 m, right tube: 13.098 m[24] |
Hsuehshan | Taiwan | 12.942 km (8.0 mi) | 2006 | 2 | 5 | |
Fréjus | France - Italy | 12.895 km (8.0 mi) | 1980 | 1 | E70 | |
KPE & MCE Expressway Tunnel | Singapore | 12.46 km (7.7 mi) | 2008 2013 |
1* | Kallang–Paya Lebar Expressway (KPE) and Marina Coastal Expressway (MCE) | Tunnel section of KPE (8.13 km) and MCE (4.33 km) are contiguous, hence classified as one tunnel. *Dual carriageway 12 Lanes of traffic (maximum width: 70m) with each direction separated only by a full-height wall, thus considered to be one tube. |
Maijishan Tunnel | China (Gansu) | 12.29 km (7.6 mi) | 2009 | 2 | G30, Baoji-Tianshui Expressway | 2 tubes, 12.290 km and 12.286 km |
Mt. Blanc | France - Italy (Alps) | 11.611 km (7.2 mi) | 1965 | 1 | E25 | "World's longest tunnel" 1965 - 1979 |
Gudvangen | Norway (Gudvangen - Flåm) | 11.428 km (7.1 mi) | 1991 | 1 | E16 | |
Yunshan Tunnel | China (Shanxi) | 11.408 km (7.1 mi) | 2014 | 2 | G2516 Dongyin-Luliang Expressway | Left tube: 11.408 m, right tube: 11.377 m |
Eysturoyartunnilin | Faroe Islands | 11.238 km (7.0 mi) | 2020 | 1 | Forked with roundabout and 3 entries. Segments 7.5 km (4.7 mi), 2.2 km (1.4 mi) and 1.7 km (1.1 mi) long. | |
Baojiashan Tunnel | China (Shaanxi) | 11.200 km (7.0 mi) | 2009[25] | 2 | G65, Xi'an-Ankang Expressway | Left tube: 11.200 m, right tube: 11.195 m |
Folgefonna | Norway (Odda - Eitrheim) | 11.15 km (6.9 mi) | 2001 | 1 | 49 | |
Kan-etsu | Japan (Gunma - Niigata) | 11.055 km (6.9 mi) | 1985 1991 |
2 | Kan-Etsu Expressway | Two tubes (the older 10.926 m) |
Inje-Yangyang Tunnel | South Korea (Gangwon Province) | 10.962 km (6.85 mi) | 2017 | 2 | Seoul–Yangyang Expressway | 10.965 km (Seoul bound) / 10.962 km (Yangyang bound) |
Toven Tunnel[26] | Norway | 10.655 km (6.6 mi) | 2014 | 1 | 78 | |
Baotashan[27] | China (Shanxi) | 10.480 km (6.512 mi) | 2012[28] | 2 | S66 Shanxi Hefen Expressway | Left tube: 10.192 m, right tube: 10.480 m |
Hida | Japan (Gifu) | 10.71 km (6.7 mi) | 2008 | 1 | Tokai-Hokuriku Expressway | |
Gran Sasso d'Italia | Italy (Abruzzo) | 10.176 km (6.3 mi) | 1984 1995 |
2 | A24 | Two tubes (the newer 10.173 m) |
Jondal Tunnel | Norway (Mauranger - Jondal) | 10.05 km (6.2 mi) | 2012 | 1 | 49 | |
Nibashan Tunnel[a] | China (Sichuan) | 10.007 km (6.2 mi) | 2012[29] | 2 | G5, Beijing-Kunming Expressway | 2 tubes, 10.007 km and 9.962 km |
Duplex A86 | France (Rueil-Malmaison - Versailles) | 10 km (6.2 mi) | 2009/2011 | 1* | A86 | *the two two-lane directions are superimposed (hence duplex) in one tube |
Lowari Tunnel | Pakistan | 8.5 km (5.3 mi) | 1975 2017 |
1 | N-45 / Dir-Chitral Highway | Part of a group of two consecutive tunnels: 8.5 km (5.3 mi) and 1.9 km (1.2 mi) |
Many more tunnels exist that are shorter than 10 kilometres (6 mi) |
Name | Location | Length | Year | Tubes | Road | Notes |
---|---|---|---|---|---|---|
Boknafjord Tunnel[30] | Norway (Stavanger) | 26.7 km (16.6 mi)[31] | 2031 | 2 | European route E39 | Mostly underwater. Will have a record depth of 390 m below sea level. A side tunnel (Kvitsøy Tunnel, 4 km) will connect Kvitsøy. Construction began on 4 January 2018. |
Tianshan Shengli Tunnel | China (Xinjiang) | 22.1 km (13.7 mi)[32] | 2025 | 2 | Ürümqi–Ruoqiang Expressway | |
Bypass Stockholm[33] | Sweden (Stockholm) | 16.5 km (10.3 mi) | 2030[34] | 2 | E4 | |
Tokyo Gaikan Tunnel | Japan (Tokyo) | 16.2 km (10.1 mi) | 2030 | 2 | C3 Tokyo Gaikan Expressway | |
Zoji-la Tunnel | India (Jammu Kashmir) | 14.2 km (8.8 mi) | 2026[35] | 1 | Srinagar-Kargil-Leh highway[36] | |
Micangshan Tunnel[citation needed] | China (Sichuan) | 13.833 km (8.6 mi) | 2018[needs update] | 2 | Bazhong-Shaanxi Expressway | Left tube: 13.833 m, right tube: 13.792 m[37] |
Fjarðarheiðargöng | Iceland | 13.500 km (8.4 mi) | 2024 | 1 | Route 93 | In planning. Actual construction starts in 2022. |
Dongtianshan Tunnel | China (Xinjiang) | 13.240 km (8.2 mi) | 2020[needs update] | 1 | National Highway G575 | |
Huangtuliang Tunnel | China (Sichuan) | 13.010 km (8.1 mi) | 2021 | 2 | Mianyang-JiuzhaigouExpressway | |
NSC Expressway Tunnel | Singapore | 12.5 km (7.8 mi) | 2026 | 1 | North-South Corridor, Singapore | Tunnel sections of NSC are (10.4 km), while sub-surface section is (2.1 km). Dual carriageway of 6 lanes with each direction separated only by a full-height wall, thus considered to be one tube. |
Gaoloushan Tunnel | China (Gansu) | 12.248 km (7.6 mi) | 2020[needs update] | 2 | Pingliang-Mianyang Expressway | |
Murovdag Tunnel | Azerbaijan (Kalbajar) | 11.600 km (7.2 mi) | ?? | 2 | ||
Yunshan Tunnel | China (Shanxi) | 11.408 km (7.1 mi) | ?? | 2 | S66 Shanxi Hefen Expressway | Left tube: 11.408 m, right tube: 11.377 m |
Sandoyartunnilin | Faroe Islands | 10.900 km (6.8 mi) | 2023[38] | 1 | ||
Many more tunnels that are shorter than 10 kilometres (6 mi) are under construction |
Name | Location | Length | Year | Notes | |
---|---|---|---|---|---|
Delaware Aqueduct | New York, United States | 137.0 km (85.1 mi) | 1945 | Water supply. Drilled through solid rock. | |
Päijänne Water Tunnel | Southern Finland, Finland | 120.0 km (74.6 mi) | 1982 | Water supply (16 m2 cross section). | |
Dahuofang Water Tunnel | Liaoning Province, China | 85.3 km (53.0 mi) | 2009 | Water supply (8 m in diameter[39]) | |
Orange–Fish River Tunnel | South Africa | 82.8 km (51.4 mi) | 1975 | Irrigation. (22.5 m2 cross section) | |
Bolmen Water Tunnel | Kronoberg/Scania, Sweden | 82.0 km (51.0 mi) | 1987 | Water supply, 8 m2. | |
Želivka Water Tunnel[40] | Central Bohemian Region, Czech Republic | 51.1 km (31.8 mi) | 1972 | Water supply, 5 m2 | |
Arpa-Sevan Tunnel[41] | Armenia (at the time of construction USSR) |
48.3 km (30.0 mi) | 1981 | Water supply. | |
#1 Tunnel, Yellow River Diversion to Shanxi North Line | Shanxi, China | 43.7 km (27.2 mi) | 2011 | Water supply. | |
#7 Tunnel, Yellow River Diversion to Shanxi South Line | Shanxi, China | 43.5 km (27.0 mi) | 2002 | Water supply. | |
High Island Water Tunnels | Sai Kung Peninsula, New Territories, Hong Kong | 40.0 km (24.9 mi) | 1976 | Water supply. | |
Kárahnjúkar Hydropower Plant | Eastern Region, Iceland | 39.7 km (24.7 mi) | 2003-2007 | Hydroelectric. 7.2-7.6 meters in diameter. Part of a wider complex of tunnels that are 72 kilometers in length combined | |
Quabbin Aqueduct | Massachusetts, United States | 39.6 km (24.6 mi) | 1905 | Water supply. | |
Evanger Hydropower Plant | Evanger, Norway | 34.4 km (21.4 mi) | 1977 | Hydroelectric. 30 m2 | |
Talave Tunnel | Albacete, Spain | 31.8 km (19.8 mi) | 1979 | Part of the Tagus-Segura Water Transfer. | |
Evinos - Mornos Tunnel[42][43] | Aetolia-Acarnania, Greece | 29.4 km (18.3 mi) | 1992-1995 | Water supply. | |
Palacio - Río blanco Tunnel[44] | Bogotá, Colombia | 28.4 km (17.6 mi) | 1984 | Water supply. | |
Şanlıurfa Irrigation Tunnels | Turkey | 26.4 km (16.4 mi) | 2005 | Irrigation.[45] | |
Gilgel Gibe II Power Station headrace tunnel | Ethiopia | 26.0 km (16.2 mi) | 2005-2009 | Hydroelectric. Tunnel partially collapsed, was repaired in 2010.[46][47] | |
Tai Lam Chung Tunnels | Tai Lam Chung to Chai Wan Kok, New Territories, Hong Kong | 24.45 km (15.19 mi) | 1957-1974 | Water supply. | |
Grande Dixence headrace tunnel | Switzerland | 24.0 km (14.9 mi) | 1951-2010 | Hydroelectric. Total tunnel system 100 km.[48] | |
Kishanganga Hydroelectric Project | India | 23.20 km[49][50]
(14.4 mi) |
2017 | Hydroelectric. | |
Tala Hydroelectricity Project headrace tunnel | Bhutan | 22.0 km (13.7 mi) | 2004[51] | Hydroelectric. 6.8 meters in diameter. | |
Vorotan-Arpa Tunnel | Armenia | 21.7 km (13.5 mi) | 2004 | Water supply. | |
Plover Cove Stage 1 Tunnels | Plover Cove, New Territories, Hong Kong | 20.2 km (12.6 mi) | 1965-1971 | Water supply. | |
Olmos Transandino Project | Peru | 19.3 km (12.0 mi) | 2011[52] | Water supply. | |
Tatev Hydroelectric Power Station Water Tunnel | Armenia (at the time of construction Soviet Union) |
18.4 km (11.4 mi) | 1970 | Hydroelectric | |
Plover Cove Stage 2 Tunnels | Plover Cove, New Territories, Hong Kong | 18.2 km (11.3 mi) | 1967 | Water supply. | |
Suruç Water Tunnel | Suruç, Şanlıurfa Province, Turkey | 17.2 km (10.7 mi) | 2014[53] | Irrigation. | |
Mavi Tünel (Blue Tunnel)[54] | Konya, Turkey | 17 km (10.6 mi) | 2012 | Irrigation. | |
Sri Ranganayaka Sagar - Kondapochamma Sagar Tunnel[55] | Telangana, India | 16.18 km[56] | 2020 | Part of Link - IV, Package - 12 of Kaleshwaram Lift Irrigation Project. | |
Inguri Hydroelectric Power Station Water Tunnel | Georgia (at the time of construction Soviet Union) |
15.3 km (9.5 mi) | 1978 | Hydroelectric | |
Many more tunnels exist that are shorter than 15 kilometres (9 mi) |
Name | Location | Length | Year | Notes | ||
---|---|---|---|---|---|---|
Ramappa to Dharmasagar Tunnel[57] | Telangana, India | 49.06 km | 2022 | Part of J. Chokka Rao Devadula lift irrigation sceheme, for Irrigation.[58]
Under construction by Coastal Projects Limited[59] and Irrigation & CAD Department, Government of Telangana | ||
Srisailam Left Bank Canal Tunnel - I[60] | Srisailam Dam, India | 43.931 km (27.3 mi) | 2021[61] | Under construction by Jaypee Group[62] and Irrigation & CAD Department, Government of Telangana | ||
Melamchi Water Tunnel[63] | Nepal, Melamchi to Kathmandu | 26 km (16.2 mi) | 2021[64] | Under construction, financed by Asian Development Bank[citation needed] | ||
Mae Taeng–Mae Ngat Tunnel[65] | Chiang Mai, Thailand | 25.624 km (15.9 mi) | 2021 | 4.00 m in diameter | ||
Mae Ngat–Mae Kuang Tunnel[65] | Chiang Mai, Thailand | 22.975 km (14.3 mi) | 2021 | 4.20 m in diameter | ||
Poola Subbaiah Veligonda Project Tunnel - II[66] | Andhra Pradesh, India | 18.83 km
(11.70 mi) |
2021 | Part of Veligonda Project
Under construction by Coastal Projects Limited[59] | ||
Poola Subbaiah Veligonda Project Tunnel - I[66] | Andhra Pradesh, India | 18.82 km
(11.69 mi) |
2020[needs update][67] | Part of Veligonda Project
Under construction by Coastal Projects Limited[59] | ||
Many more tunnels that are shorter than 15 kilometres (9 mi) are under construction |
Note: There are buried oil and gas pipelines, up to several thousand kilometers long. See also:
Name | Location | Length | Trail |
---|---|---|---|
Snoqualmie Tunnel | King and Kittitas Counties, Washington, United States | 3,625 m (11,893 ft)[68] | Palouse to Cascades State Park Trail |
Fyllingsdalstunnelen | Bergen, Norway | 2,900 m (9,514 ft)[69][70] | Fyllingsdalen to Bergen City Center |
St. Paul Pass Tunnel | Montana and Idaho, United States | 2,736 m (8,976 ft) | The Route of the Hiawatha |
Slavošovský tunel | Slavošovce, Košický kraj, Slovakia | 2,400 m (7,874 ft) | Slavošovce to Revúca blue Trail number 2589 |
Old Caoling Tunnel | Yilan County and New Taipei City, Taiwan | 2,167 m (7,110 ft) | Abandoned single-track railway tunnel |
Kerem Tunnel | Jerusalem, Israel | 2,100 m (6,890 ft)[71] | Jerusalem Bicycle Trails |
Sideling Hill Tunnel | Fulton County, Pennsylvania, United States | 2,067 m (6,781 ft) | Pike 2 Bike Trail |
Combe Down Tunnel | Bath, England, United Kingdom | 1,672 m (5,486 ft) | Two Tunnels Greenway |
Tunnel du Bois Clair | Sologny, France | 1,600 m (5,249 ft) | Voie Verte de Bourgogne du Sud (Chalon-sur-Saône to Mâcon) |
Niwärch Stollen | Ausserberg, Valais, Switzerland | 1,379 m (4,524 ft) | Niwärch Bisse |
Claudius Crozet Blue Ridge Tunnel | Nelson/Augusta County, Virginia, United States | 1,291 m (4,237 ft) | Claudius Crozet Blue Ridge Tunnel Trail |
Norwalk Tunnel | Elroy, Sparta, Wisconsin, United States | 1,161 m (3,809 ft) | Elroy-Sparta State Trail |
Wassertunnel Gredetschtal | Mund, Switzerland | 1,120 m (3,675 ft) | Wyssa Suonen Trail |
Tidenham Tunnel | Tidenham and Tintern, UK | 1,086 m (3,563 ft) | Wye Valley Greenway |
Karangahake Tunnel | Waihi, New Zealand | 1,086 m (3,563 ft) | Hauraki Rail Trail |
Rays Hill Tunnel | Bedford & Fulton Counties, Pennsylvania, United States | 1,076 m (3,530 ft) | Pike 2 Bike Trail |
Bonassola Pastorelli Tunnel | Bonassola, Italy | 1,036 m (3,399 ft) | Pista Ciclopedonale Maremonti |
Kennerdell Tunnel | Venango County, Pennsylvania, United States | 1,021 m (3,350 ft) | Erie to Pittsburgh Trail |
Big Savage Tunnel | Somerset County, Pennsylvania, United States | 1,004 m (3,294 ft) | Great Allegheny Passage |
Most of the tunnels listed were built for other purposes, and have not been redesigned. The Fyllingsdalentunnelen is one example of a tunnel built to purpose from the start.