List of Longest Tunnels in the World
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SNo Name Location Length Type Year Comment New York City's main New York state, 137,000 m water supply 1 Delaware Aqueduct Water supply 1945 United States (85.1 mi) tunnel, drilled through solid rock. Southern Finland, 120,000 m 2 2 Päijänne Water Tunnel Water supply 1982 16 m cross Finland (74.6 mi) section Liaoning Province, 85,320 m 3 Dahuofang Water Tunnel Water supply 2009 8 m in diameter China (53.0 mi) longest continuous enclosed Orange–Fish River 82,800 m aqueduct in the 4 South Africa Water supply 1972 Tunnel (51.4 mi) southern hemisphere (22.5 m2 cross section) Kronoberg/Scania, 82,000 m 5 Bolmen Water Tunnel Water supply 1987 2 Sweden (51.0 mi) 8 m longest 60,400 m metro/rapid 6 Guangzhou Metro: Line 3 Guangzhou, China (37.5 mi)Excl. Metro 2005-2010 transit tunnel branch longest railway tunnel Tunel Emisor Oriente: longest 62,500 m 7 Water management in Mexico City, Mexico Waterwaste 2006-2012 waterwaste (38.8 mi) Greater Mexico City tunnel 57,100 m 8 Beijing Subway: Line 10 Beijing, China Metro 2008-2012 (35.5 mi) longest railway tunnel excluding 53,850 m Railway 9 Seikan Tunnel Tsugaru Strait, Japan 1988 urban metro (33.5 mi) Single Tube lines with intermediate stations, 74 m2 Central Bohemian 51,075 m 10 Želivka Water Tunnel Region, Czech Water supply 1972 2 (31.7 mi) 5 m Republic longest underwater section, longest English Channel, international 50,450 m Railway 11 Channel Tunnel United 1994 tunnel, second- (31.3 mi) Twin Tube Kingdom/France longest railway tunnel 2 (2×45 m + 1×18 m2) Armenia (at the time of 48,300 m 12 Arpa-Sevan Tunnel Water supply 1981 construction Soviet (30.0 mi) Union) 47,600 m 13 Seoul Subway: Line 5 Seoul, South Korea Metro 1995 (29.6 mi) #1 Tunnel, Yellow River 43,670 m 14 Diversion to Shanxi North Shanxi, China Water supply 2011 (27.1 mi) Line #7 Tunnel, Yellow River 43,500 m 15 Diversion to Shanxi South Shanxi, China Water supply 2002 (27.0 mi) Line Altufyevo - Bulvar Moscow Metro, 41,500 m 16 Dmitriya Donskogo (line Metro 1983–2002 Russia (25.8 mi) 9) Metro Madrid: L-12 40,900 m 17 Madrid, Spain Metro 1999–2003 (Metro Sur) (25.4 mi) Tokyo Tocho-mae - Shiodome - 40,700 m Metropolitan 18 Hikarigaoka (Toei Oedo Tokyo, Japan Metro 1991–2000 (25.3 mi) Bureau of Line) Transportation 40,200 m 19 Shanghai Subway: Line 7 Shanghai, China Metro 2009-2011 (25.0 mi) 7.2-7.6 meters in diameter. Part of a wider Kárahnjúkar Hydroelectric 39,700 m complex of 20 Austurland, Iceland Hydroelectric 2003–2007 Powerplant (24.7 mi) tunnels that are 72 kilometers in length combined Massachusetts, 39,600 m 21 Quabbin Aqueduct Water supply 1897–1905 United States (24.6 mi) longest railway tunnel 1978– 1984 and from Medvedkovo - November 1987 Moscow Metro, 37,600 m 22 Novoyasenevskaya (line Metro 1958–1990 till March Russia (23.4 mi) 6) 1988; longest metro/rapid transit tunnel 1990-1995 Shenzhen Subway: 37,497 m 23 Shenzhen, China Metro 2009-2011 Luobao Line (23.3 mi) Shenzhen Subway: 36,146 m 24 Shenzhen, China Metro 2010-2011 Shekou Line (22.5 mi) Dawushan Tunnel, Niulan 36,137 m 25 River Diversion to Yunnan, China Water supply 2013 (22.5 mi) Dianchi Shanghai Subway: Line 36,000 m 26 Shanghai, China Metro 2010 10 (22.4 mi) 35,700 m 27 Singapore: Circle Line Singapore, Singapore Metro 2012 (22.2 mi) 35,100 m 28 Seoul Subway: Line 6 Seoul, South Korea Metro 2001 (21.8 mi) longest land Bernese Alps, 34,577 m Railway tunnel, single 29 Lötschberg Base Tunnel 2007 Switzerland (21.5 mi) Single Track track along 22 km Northumbrian England, United 34,000 m 30 Tyne-Tees Tunnel Water supply water supply Kingdom (21.1 mi) tunnel. 32,919 m 31 Metro Madrid: L-7 Madrid, Spain Metro 1974–2007 (20.5 mi) Nagoya Municipal 32,400 m 32 Meijo Line - Meikō Line Metro 1965–2004 Subway, Japan (20.1 mi) Guangzhou Subway: Line 32,000 m 33 Guangzhou, China Metro 2010 2 (19.9 mi) Rathaus Spandau-Rudow Berlin U-Bahn, 31,800 m 34 Metro 1924–1984 (U7) Germany (19.8 mi) 31,040 m 35 Beijing Subway: Line 1 Beijing, China Metro 1971-1987 (19.3 mi) 30,950 m 36 Beijing Subway: Line 4 Beijing, China Metro 2009-2010 (19.2 mi) Côte-Vertu - Montreal Metro, 30,798 m 37 Montmorency (Line 2 Metro 1966–2007 Canada (19.1 mi) Orange) 30,187 m 38 Shanghai Subway: Line 2 Shanghai, China Metro 2000 (18.8 mi) Parnas - Kupchino (line Saint Petersburg 30,100 m 39 Metro 1961–2006 2) Metro, Russia (18.7 mi) Guangzhou Subway: Line 29,900 m 40 Guangzhou, China Metro 2009 5 (18.6 mi) 29,650 m 41 Shanghai Subway: Line 8 Shanghai, China Metro 2007-2009 (18.4 mi) Prospekt Veteranov - Saint Petersburg 29,600 m 42 Metro 1955–1978 Devyatkino (line 1) Metro, Russia (18.4 mi) Aetolia-Acarnania, 29,400 m Water 43 Evinos - Mornos Tunnel 1992-1995 Greece (18.3 mi) Supply 11.5 ft (3.5 m) Eastern to 14 ft (4.3 m) 28,640 m Water 44 Hultman Aqueduct Massachusetts, 1939 diameter; (17.8 mi) Supply United States offline for rehabilitation Sierra de 28,377 m Railway 45 Guadarrama Tunnel 2007 Guadarrama, Spain (17.6 mi) Twin Tube Eastern MetroWest Water Supply 28,300 m Water 14 ft (4.3 m) 46 Massachusetts, 1996–2003 Tunnel (17.6 mi) Supply diameter United States Zyablikovo - Maryina Moscow Metro, 28,200 m 47 Metro 1995–2011 Roshcha (line 10) Russia (17.5 mi) on Taihang Mountains, 27,848 m Railway Shijiazhuang- 48 Taihang Tunnel 2007 China (17.3 mi) Single Tube Taiyuan high- speed railway London Morden - East Finchley Underground, 27,800 m Longest railway 49 Metro 1890–1940 (Northern Line) England, United (17.3 mi) tunnel in UK Kingdom 27,800 m 50 Shenyang Subway: Line 1 Shenyang, China Metro 2010 (17.3 mi) second phase 27,000 m 51 MRT Blue Line Bangkok, Thailand Metro 2004 will be open in (16.8 mi) 2017 Dainichi-Nagahara Osaka Municipal 26,900 m 52 Metro 1967–1983 (Tanimachi Line) Subway, Japan (16.7 mi) 11.3–15.9 m2 CERN, 26,659 m Particle circular ring, 53 LEP Tunnel 1989 Switzerland/France (16.6 mi) accelerator now used by Large Hadron Collider 26,500 m 54 İstanbul Metro (Line M4) İstanbul, Turkey Metro 2012 (16.5 mi) Hakkōda Tunnel(Tōhoku Hakkōda Mountains, 26,455 m Railway 55 2010 2 Shinkansen) Japan (16.4 mi) Single Tube 64–74 m Şanlıurfa Irrigation 26,400 m 56 Turkey Irrigation 2005 Tunnels (16.4 mi) 26,263 m 57 Shanghai Subway: Line 9 Shanghai, China Metro 2007-2010 (16.3 mi) Tunnel partially collapsed, Gilgel Gibe II Power 26,000 m 58 Ethiopia Hydroelectric 2005–2009 under repair Station headrace tunnel (16.2 mi) until November 2010. #5 Tunnel, Yellow River 26,000 m 59 Diversion to Shanxi South Shanxi, China Water 2002 (16.2 mi) Line 25,810 m Railway 60 Iwate-Ichinohe Tunnel Ōu Mountains, Japan 2002 (16.0 mi) Single Tube Eastern 25,750 m Water Emergency 61 Sudbury Aqueduct Massachusetts, 1878 (16.0 mi) Supply backup use United States 25,739 m 62 Suzhou Subway: Line 1 Shanghai, China Metro 2007-2011 (16.0 mi) the longest road Lærdal - Aurland, 24,510 m 63 Lærdal Tunnel Road 2000 tunnel in the Norway (15.2 mi) world Yellow Line (Delhi 24,000 m longest tunnel 64 Metro): GTB Nagar - Delhi, India Metro 2004–2010 (14.9 mi) in India Qutub Minar 23,876 m 65 Metro Madrid: L-1 Madrid, Spain Metro (14.8 mi) west of Vienna, 23,844 m breakthrough 66 Lainzer/Wienerwaldtunnel Railway 2012 Austria (14.8 mi) 2007-09-03 Part of the 145 km tunnel Eucumbene-Snowy 23,500 m network of the 67 NSW, Australia Water supply 1965 Tunnel (14.6 mi) Snowy Mountains Scheme 23,472 m 68 Metro Madrid: L-6 Madrid, Spain Metro 1979–2007 (14.6 mi) Angrignon - Honoré- Montreal Metro, 23,262 m 69 Metro 1966–2007 Beaugrand (Line 1 Green) Canada (14.5 mi) Warsaw Metro L-1: 23,100 m 70 Warsaw, Poland Metro 1983–2008 Kabaty - Młociny (14.4 mi) 23,100 m 71 Beijing Subway: Line 2 Beijing, China Metro 1969-1987 (14.4 mi) Xinma Hydroelectric 22,975 m 72 Power Station Water Sichuan, China Hydroelectric 2009 (14.3 mi) Tunnel Part of the 145 km tunnel Eucumbene-Tumut 22,200 m network of the 73 NSW, Australia Water supply 1959 Tunnel (13.8 mi) Snowy Mountains Scheme Mount Tanigawa, 22,221 m 74 Daishimizu Tunnel Railway 1982 Japan (13.8 mi) 21,900 m 75 Taipei Metro: Blue Line Taipei, Taiwan Metro 1999-2011 (13.6 mi) Taipei Metro: Orange 21,400 m 76 Line (Fu Jen University - Taipei, Taiwan Metro 1998-2010 (13.3 mi) Nanshijiao) construction stopped after Particle Protvino (near 21,000 m 1994 finishing of 77 UNK proton accelerator accelerator Moscow), Russia (13.0 mi) (breakthrough) main circle (incomplete) tunnel, future is unclear 20,900 m 78 Guangfo Metro Foshan, China Metro 2010 (13.0 mi) 2 tubes, left tube is 20785 20,785 m 79 Luliangshan Tunnel Shanxi, China Railway 2011 meters, right (12.9 mi) tube is 20738 meters 20,740 m 80 Shanghai Subway: Line 4 Shanghai, China Metro 2005-2007 (12.9 mi) 20,700 m 81 Barcelona Metro: Line 1 Barcelona, Spain Metro 1926–1992 (12.9 mi) 20,500 m 82 Xian Subway: Line 2 Xian, China Metro 2011 (12.7 mi) 20,380 m 83 Nanjing Subway: Line 2 Nanjing, China Metro 2010 (12.7 mi) 20,336 m 84 Shanghai Subway: Line 6 Shanghai, China Metro 2007 (12.6 mi) Part of the Big Creek Hydroelectric Project of the Southern [citation California, United 20,610 m 85 Ward Tunnel Hydroelectric 1920-1925 California needed] States (12.8 mi) Edison Company.