See also
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This page presents the same tunnels as in list of tunnels by length in separate lists according to the different tunnel types.
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 易贡隧道 [9] [10] | China (Tibet) | 42.5 km (26.4 mi) | 2030 | Nyingchi–Ya'an railway |
| Sejila Mountain Tunnel 色季拉山隧道 [9] [10] | 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 |
Only continuous tunnel sections should be included, at least 35 km (22 mi) long, excluding branches from the longest tunnel.
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 [lower-alpha 1] |
| Cross Island line | Mass Rapid Transit (Singapore) | (Linear route with branch section, all underground) | 65.5 km (40.7 mi) [lower-alpha 2] | 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 [lower-alpha 3] |
| L9 / L10 | Barcelona Metro | 43.7 km (27.2 mi) [lower-alpha 4] | 2016 [lower-alpha 5] |
| 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 [lower-alpha 1] | 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 km (85.1 mi) | 1945 | Water supply. Drilled through solid rock. | |
| Päijänne Water Tunnel | Southern Finland, Finland | 120 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 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 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 | |
| Melamchi Water Tunnel | Nepal, Melamchi to Kathmandu | 27 km (16.8 mi) | 2021 [45] | Water supply | |
| Şanlıurfa Irrigation Tunnels | Turkey | 26.4 km (16.4 mi) | 2005 | Irrigation [46] | |
| Gilgel Gibe II Power Station headrace tunnel | Ethiopia | 26 km (16.2 mi) | 2005-2009 | Hydroelectric. Tunnel partially collapsed, was repaired in 2010. [47] [48] | |
| 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 km (14.9 mi) | 1951-2010 | Hydroelectric. Total tunnel system 100 km. [49] | |
| Kishanganga Hydroelectric Project | India | 23.2 km (14.4 mi) [50] [51] | 2017 | Hydroelectric | |
| Tala Hydroelectricity Project headrace tunnel | Bhutan | 22 km (13.7 mi) | 2004 [52] | 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 | 20 km (12.4 mi) | 2011 [53] | Water supply | |
| Mantaro Hydroelectricity Project | Peru | 19.8 km (12.3 mi) | 1973 [54] | Hydroelectric | |
| 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 [55] | Irrigation | |
| Mavi Tünel (Blue Tunnel) [56] | Konya, Turkey | 17 km (10.6 mi) | 2012 | Irrigation | |
| Sri Ranganayaka Sagar - Kondapochamma Sagar Tunnel [57] | Telangana, India | 16.18 km (10.1 mi) [58] | 2020 | Irrigation. 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 [59] | Telangana, India | 49.06 km (30.5 mi) | 2022[ needs update ] | Irrigation. Part of J. Chokka Rao Devadula lift irrigation sceheme [60] [61] | ||
| Srisailam Left Bank Canal Tunnel - I [62] | Srisailam Dam, India | 43.931 km (27.3 mi) | 2021[ needs update ] [63] [64] | Irrigation | ||
| Mae Taeng–Mae Ngat Tunnel [65] | Chiang Mai, Thailand | 25.624 km (15.9 mi) | 2021[ needs update ] | Irrigation. 4 m in diameter | ||
| Mae Ngat–Mae Kuang Tunnel [65] | Chiang Mai, Thailand | 22.975 km (14.3 mi) | 2021[ needs update ] | Irrigation. 4.2 m in diameter | ||
| Poola Subbaiah Veligonda Project Tunnel - II [66] [61] | Andhra Pradesh, India | 18.83 km (11.7 mi) | 2021[ needs update ] | Irrigation | ||
| Poola Subbaiah Veligonda Project Tunnel - I [66] [61] | Andhra Pradesh, India | 18.82 km (11.7 mi) | 2020[ needs update ] [67] | Irrigation | ||
| 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 | Country | 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 | United Kingdom | 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.
The Wushaoling Tunnel is a 21.05 km dual-bore railway tunnel in Gansu, north-west China. The east-bound bore opened on 30 March 2006. The second bore opened in August 2006. It was briefly the longest railway tunnel in China until the opening of the 27.84 km Taihang Tunnel in late 2007. In 2018, a one year reconstruction of the signaling system was started.
Line 3 of the Guangzhou Metro is a 65.43-kilometer (40.66 mi) rapid transit line connects Panyu Square to Tianhe Coach Terminal. The entire line, including all track and stations, is located in tunnels. Its 57.93 km (36.00 mi) main branch, excluding the 7.5 km (4.66 mi) branch between Tianhe Coach Terminal and Tiyu Xilu, is now the third longest continuous subway tunnel in the world, and the longest rail tunnel of any kind.
The Lanzhou–Haikou Expressway, designated as G75 and commonly referred to as the Lanhai Expressway, is an expressway in China that connects the cities of Lanzhou, Gansu, and Haikou, Hainan. When fully complete, it will be 2,570 km (1,600 mi) in length. It is one of the most important routes between Northwest China and the Southwest, and considered one of the developmental axes of Development of Western China.
Nanchang Metro, officially Nanchang Rail Transit, is a rapid transit system in Nanchang, Jiangxi, China. As of 2021, four lines are operational. The Metro opened for commercial operation in December 2015. The network is currently 128.3 km (79.7 mi) in length with 4 lines. A total length of 163 km (101.3 mi) of network is planned, with Line 5 which is currently under planning.
The Qiaozhong Road Tunnel is a tunnel in Haikou, Hainan Province, China. It connects Qiaozhong Road with Yusha Road, and is the only tunnel in the city.
New Guanjiao Tunnel is a tunnel on the 2nd line of Qinghai–Tibet Railway in Guanjiao Mountain, Qinghai province. It is dual-bored, double-track rail tunnel. The total length of the tunnel is 32.645 km (20.285 mi), which makes it the longest railway tunnel in China.
Dushu Lake is a freshwater lake in the southern part of Suzhou Industrial Park. It is located in the junction of four towns: Guoxiang (郭巷), Chefang (车坊), Xietang (斜塘) and Loufeng (娄葑). The area of Dushu Lake is 9.19 square kilometers with an average depth of 6.5 meters. The lake connects the Jinji Lake (金鸡湖) at its north end, the Fengmen Pond (葑门塘) at its west, and is fed by the Wusong River (吴淞江) from the south-east. The earliest proof of possible human activity around Dushu Lake can be traced back 5500 years, according to an archaeology report conducted in 2001. The findings were significant in analyzing Suzhou's climate, geography, and environment in ancient times. Suzhou Dushu Lake Higher Education Town is located by the east bank of the lake, and two tunnels run through the lake, connecting the east and west bank.
Lanzhou–Chongqing railway or Lanyu railway is a higher-speed railway in China connecting Lanzhou and Chongqing. Construction started in 2010, last segment of the railway was opened for service in September 2017. The line allows trains to travel between Chongqing and Lanzhou, Gansu via Nanchong and Guangyuan, Sichuan.
The Jin'an Bridge is a suspension bridge near Lijiang, Yunnan, China. At 461 m (1,512 ft), it is the fourth highest bridge in the world. The bridge forms part of the G4216 Chengdu–Lijiang Expressway carrying traffic over the Jinsha River. The bridge construction began in 2016, the structure closed in January 2020 and it opened for traffic on 31 December 2020. The main span of the bridge is 1,386 m (4,547 ft).
The Lanzhou–Xinjiang high-speed railway, also known as Lanzhou–Xinjiang Passenger Railway or Lanxin Second Railway, is a high-speed railroad in Northwestern China from Lanzhou in Gansu Province to Ürümqi in the Xinjiang Uyghur Autonomous Region. It forms part of what China designates the Eurasia Continental Bridge corridor, a domestic high-speed railway corridor running from the city of Lianyungang in Jiangsu to the Kazakh border. The line is also shared with conventional trains.
The Kunming–Yuxi–Hekou railway is a standard-gauge railway in Yunnan Province of China, linking the provincial capital Kunming with the town of Hekou on the Vietnamese border. Constructed in several stages between 1989 and 2014, the Kunming–Yuxi–Hekou railway has largely replaced the Chinese section of the old metre-gauge Kunming–Haiphong railway for normal passenger and cargo transportation. The line is electrified, but single-tracked over most of its length.
Gaoligongshan Tunnel or Gaoligong Mountain Rail Tunnel is a 34.5 km (21.4 mi) tunnel between Nujiang Station and Longling Station on the Dali–Ruili railway in Yunnan, China. It passes through the entirety of Longling County and then into Mangshi. Upon completion, it will be the longest mountain railway tunnel in Asia.
Yinchuan–Xi'an high-speed railway, is a dual-track, electrified, high-speed rail line in Northwest China between Yinchuan and Xi'an. The line is the first railway to connect Qingyang to the Chinese railway network, and also the first railway to connect Ningxia and Yinchuan to the high-speed railway network.
{{cite web}}: |author= has generic name (help){{cite journal}}: CS1 maint: DOI inactive as of April 2024 (link)The EVINOS-MORNOS tunnel project with its 30 km of length is one of the longest hydraulic tunnel in the world realised with TBM method. The adverse geological conditions, the high cover and the short construction schedule were a great challenge for the successful construction of this tunnel. The paper will describe: the criteria adopted for the tunnel design, the selection of the construction methods and equipment, the productions of the 4 TBMs adopted and the comparison of the behaviour of the different type of TBMs in the various rock conditions, including special conditions, the characteristics of the adopted in situ and precast linings, a comparison between the foreseen and actual construction schedules, the contractual implications of realising a tunnel in such a severe and complex conditions.
Norway's Bergen is opening the world's longest purpose-built pedestrian and bicycle tunnel today.