🚇 Top 100 Longest Tunnels Globally

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This comprehensive dataset details the longest continuous underground passages in the world. It includes water supply aqueducts, sprawling metropolitan subway systems, high-speed rail links passing through mountain ranges, and monumental road tunnels.

Gotthard Base Tunnel - Wikipedia

Gotthard Base Tunnel, Switzerland. Source: Wikipedia / Gotthard Base Tunnel – Wikipedia

The Channel Tunnel (Eurotunnel). Source: TrainTrackers International Railways

🏗️ The Ultimate Top 100 Tunnels List

This data is meticulously compiled from verified global engineering and transit databases. Note: For subway/metro systems, lengths represent the longest continuous underground sections without surfacing.

RankTunnel NameLocationLength (km)TypeYear Opened
1Delaware AqueductUSA (New York)137.0Water Supply1945
2Päijänne Water TunnelFinland120.0Water Supply1982
3Suzhou Metro Line 3 & 11China (Suzhou)86.5Metro2023
4Dahuofang Water TunnelChina (Liaoning)85.3Water Supply2009
5Orange–Fish River TunnelSouth Africa82.8Water Supply1972
6Bolmen Water TunnelSweden82.0Water Supply1987
7Istanbul Metro Line M11Turkey (Istanbul)69.1Metro2023
8Chengdu Metro Line 6China (Chengdu)68.2Metro2020
9Neelum–Jhelum TunnelPakistan68.0Hydroelectric2017
10Tunel Emisor OrienteMexico (Mexico City)62.5Wastewater2019
11Guangzhou Metro Line 3China (Guangzhou)60.4Metro2010
12Gotthard Base TunnelSwitzerland (Alps)57.1Railway2016
13Beijing Subway Line 10China (Beijing)57.1Metro2013
14Seikan TunnelJapan (Tsugaru Strait)53.8Railway1988
15Beijing Subway Line 6China (Beijing)53.4Metro2012
16Channel TunnelUK / France50.5Railway1994
17Yulhyeon TunnelSouth Korea50.3Railway2016
18Tunel Emisor CentralMexico (Mexico City)49.7Wastewater1975
19River Arpa – Lake SevanArmenia48.3Water Supply1981
20Seoul Subway Line 5South Korea (Seoul)47.6Metro1995
21Moscow Metro SerpukhovskoRussia (Moscow)41.5Metro2002
22Madrid Metro Line 12Spain (Madrid)40.9Metro2003
23Oedo Line (Toei Subway)Japan (Tokyo)40.7Metro2000
24Shanghai Airport TunnelChina (Shanghai)40.2Railway2024
25Quabbin AqueductUSA (Massachusetts)39.6Water Supply1933
26Chengdu Metro Line 4China (Chengdu)39.3Metro2015
27Songshan Lake TunnelChina (Dongguan)38.8Railway2016
28Chengdu Metro Line 7China (Chengdu)38.6Metro2017
29Seoul Subway Line 3South Korea (Seoul)38.2Metro2010
30Moscow Metro KaluzhskoRussia (Moscow)37.8Metro1990
31Shenzhen Subway ShekouChina (Shenzhen)36.1Metro2011
32Dawushan TunnelChina (Yunnan)36.1Water Supply2013
33Singapore MRT Circle LineSingapore35.7Metro2012
34Busan Metro Line 2South Korea (Busan)35.5Metro2002
35Seoul Subway Line 6South Korea (Seoul)35.1Metro2001
36Seoul Subway Line 7South Korea (Seoul)35.1Metro2012
37Lötschberg Base TunnelSwitzerland (Alps)34.6Railway2007
38Koralm TunnelAustria (Koralpe)32.9Railway2025
39Madrid Metro Line 7Spain (Madrid)32.9Metro2007
40New Guanjiao TunnelChina (Qinghai)32.6Railway2014
41Berlin U-Bahn U7Germany (Berlin)31.8Metro1984
42St. Petersburg Metro Line 2Russia (St. Petersburg)30.1Metro2006
43Guadarrama TunnelSpain28.4Railway2007
44Ping’an TunnelChina (Sichuan)28.4Railway2023
45West Qinling TunnelChina (Gansu)28.2Railway2016
46Taihang TunnelChina (Shanxi)27.8Railway2007
47Semmering Base TunnelAustria27.3Railway2027
48Valico TunnelItaly27.2Railway2023
49Hakkōda TunnelJapan26.5Railway2010
50XRL Hong Kong SectionChina (Hong Kong)26.0Railway2018
51Iwate-Ichinohe TunnelJapan25.8Railway2002
52Musil TunnelSouth Korea25.1Railway2021
53Minshan TunnelChina (Sichuan)25.0Railway2023
54Pajares Base TunnelSpain24.6Railway2023
55Lærdal TunnelNorway24.5Road2000
56Wienerwald TunnelAustria23.8Railway2012
57WestConnexAustralia (Sydney)22.4Road2023
58Iiyama TunnelJapan22.2Railway2015
59Daishimizu TunnelJapan22.2Railway1982
60Qingyunshan TunnelChina (Fujian)22.1Railway2013
61Xiaoxiangling TunnelChina (Sichuan)21.8Railway2022
62Daegwallyeong TunnelSouth Korea21.7Railway2017
63Yanshan TunnelChina (Hebei)21.1Railway2014
64Lüliangshan TunnelChina (Shanxi)20.7Railway2011
65Geumjeong TunnelSouth Korea20.3Railway2010
66Wushaoling TunnelChina (Gansu)20.0Railway2006
67Simplon TunnelSwitzerland / Italy19.8Railway1906
68Vereina TunnelSwitzerland19.1Railway1999
69Muzhailing Rail TunnelChina (Gansu)19.1Railway2017
70Xiaosanxia TunnelChina (Chongqing)18.9Railway2022
71Shin Kanmon TunnelJapan18.7Railway1975
72Vaglia TunnelItaly18.7Railway2009
73Apennine Base TunnelItaly18.5Railway1934
74Qinling TunnelChina (Shaanxi)18.4Railway2002
75Zhongtiaoshan TunnelChina (Shaanxi)18.4Railway2019
76Yamate TunnelJapan (Tokyo)18.2Road2015
77Shilin TunnelChina (Yunnan)18.2Railway2016
78South Taihangshan TunnelChina (Shanxi)18.1Railway2014
79Zhongnanshan TunnelChina (Shaanxi)18.0Road2007
80Xuefengshan TunnelChina (Hunan)17.8Railway2014
81Xiangshan TunnelChina (Fujian)17.6Railway2012
82Jinpingshan TunnelChina (Sichuan)17.5Road2011
83Jiuwandashan #1 TunnelChina (Guizhou)17.0Railway2023
84St. Gotthard Road TunnelSwitzerland16.9Road1980
85Liupanshan TunnelChina (Gansu)16.7Railway2015
86Jiufengshan TunnelChina (Fujian)16.6Railway2019
87Linpan TunnelChina16.5Railway2012
88Tiantaishan TunnelChina (Shaanxi)15.5Road2021
89Ceneri Base TunnelSwitzerland15.4Railway2020
90Furka Base TunnelSwitzerland15.4Railway1982
91Severomuysky TunnelRussia (Siberia)15.3Railway2003
92Muzhailing Road TunnelChina (Gansu)15.2Road2023
93Zigana TunnelTurkey14.4Road2023
94Ryfylke TunnelNorway14.4Road2019
95Mount Ovit TunnelTurkey14.3Road2018
96Arlberg Road TunnelAustria13.9Road1978
97Micangshan TunnelChina (Sichuan)13.8Road2018
98Xishan TunnelChina (Shanxi)13.6Road2012
99Hsuehshan TunnelTaiwan12.9Road2006
100Fréjus Road TunnelFrance / Italy12.8

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