Longest Tunnels in the World
Longest Tunnels In The World is a structured transportation dataset with 282 entries. Its fields include Name, Type, Location. The source values are preserved as a structured reference table.
The page shows a 40-row preview for fast browsing. The complete dataset is available as CSV, JSON, or Excel.
Dataset details
- Table scope
- 40-row preview of 282
- Fields
- 6 columns
- Source
- Wikipedia
- Data updated
- Feb 22, 2026
Included fields: Name, Type, Location, Length, Year, and 1 more.
Sorting and filtering apply to the 40 loaded preview rows. CSV, JSON, and Excel downloads contain all 282 records.
Preview observations
- Year span
- 1945 to 2021
- Across 22 preview rows
- Type groups
- 6 distinct values
- Across 40 preview rows
Useful for
- Comparing Name, Type, and Location across transportation entries
- Building reference tables, charts, or analyses from 282 downloadable records
Name↕ | Type↕ | Location↕ | Length↕ | Year↕ | Comment↕ |
|---|---|---|---|---|---|
Delaware Aqueduct | Water supply | New York State, United States | 137,000 m (85.128 mi) | 1945 | 4.1 m in diameter (13.2 m). New York City's main water supply tunnel. |
Päijänne Water Tunnel | Water supply | Southern Finland, Finland | 120,000 m (74.565 mi) | 1982 | 16 m cross section. Main water supply tunnel for the Helsinki metropolitan area in southern Finland, drilled through solid rock. |
Suzhou Metro Line 3-11 | Metro | Suzhou, China | 86,542 m (53.775 mi) | 2019–2023 | Suzhou Metro Line 11 and Line 3 are connected at Weiting station with through trains operating. Longest metro tunnel |
Dahuofang Water Tunnel | Water supply | Liaoning, China | 85,320 m (53.015 mi) | 2009 | 8 m in diameter (50 m cross section) |
Orange–Fish River Tunnel | Water supply | South Africa | 82,800 m (51.450 mi) | 1972 | Longest continuous enclosed aqueduct in the Southern Hemisphere (22.5 m cross section). Built to divert water from the Orange River to the Great Fish River. |
Bolmen Water Tunnel | Water supply | Kronoberg/Scania, Sweden | 82,000 m (50.952 mi) | 1987 | 8 m cross section |
Istanbul Metro (Line M11) | Metro | Istanbul, Turkey | 69,000 m (42.875 mi) | 2023–2025 | Longest metro tunnel in Europe and longest tunnel in Turkey |
Chengdu Metro Line 6 | Metro | Chengdu, China | 68,223 m (42.392 mi) | 2020 | |
Neelum–Jhelum Hydropower Tunnel | Hydroelectric | Muzaffarabad, Azad Kashmir, Pakistan | 68,000 m (42.253 mi) | 2017 | Part of the 969 MW Neelum–Jhelum Hydropower Plant |
Tunel Emisor Oriente | Wastewater | Mexico City, Mexico | 62,500 m (38.836 mi) | 2019 | 7 m in diameter. Longest wastewater tunnel. |
Qingdao Metro Line 1 | Metro | Qingdao, China | 59,818 m (37.169 mi) | 2020–2021 | |
Guangzhou Metro Line 18 | Metro | Guangzhou, China | 58,300 m (36.226 mi) | 2021 | |
Guangzhou Metro Line 3 | Metro | Guangzhou, China | 57,930 m (35.996 mi)(Excl. branch) | 2005–2018 | |
Moscow Metro Bolshaya Koltsevaya line | Metro | Moscow, Russia | 57,538 m (35.752 mi)(Excl. branch) | 2018–2023 | Longest metro/rapid transit circular line |
Gotthard Base Tunnel | Railway Twin Tube | Central Swiss Alps, Switzerland | 57,104 m (35.483 mi) and 57,017 m (35.429 mi) | 2016 | Longest conventional railway tunnel. It is also the world's longest transit tunnel by geodetic distance; 55.782 km (34.661 mi) between the two portals. Total 151.84 km (94.35 mi) of broken out tunnels through solid rocks. Part of the NRLA. |
Beijing Subway Line 10 | Metro | Beijing, China | 57,100 m (35.480 mi) | 2008–2013 | |
Seikan Tunnel | Railway Single Tube | Tsugaru Strait, Japan | 53,850 m (33.461 mi) | 1988 | 74 m; longest railway tunnel until 2016. Longest tunnel with an undersea section, running between Honshu and Hokkaido. Undersea section measures 23.3 kilometres (14.5 mi). |
Beijing Subway Line 6 | Metro | Beijing, China | 53,400 m (33.181 mi) | 2012–2018 | |
Želivka Water Tunnel | Water supply | Central Bohemian Region, Czech Republic | 51,970 m (32.293 mi) | 1972 | 9–12 m |
Seoul Subway: Line 5 | Metro | Seoul, South Korea | 51,700 m (32.125 mi)(longest branch) | 1995–2021 | Longest metro/rapid transit tunnel until Guangzhou Metro Line 3 extension opened in 2010, crosses west to east under the Seoul Capital Area. |
Rothschönberger Stolln | Wastewater | Freiberg Mining Field, Germany | 50,900 m (31.628 mi) | 1844–1882 | 6 m cross section, longest tunnel until 1945. Part of a UNESCO World Heritage Site. |
Channel Tunnel | Railway Twin Tube | English Channel, United Kingdom/France | 50,450 m (31.348 mi) | 1994 | Second longest railway tunnel until 2016. Longest underwater section, longest international tunnel (2×45 m + 1×18 m), running between Folkestone, Kent, and Coquelles, Pas-de-Calais. |
Yulhyeon Tunnel | Railway Single Tube | Seoul Capital Area, South Korea | 50,300 m (31.255 mi) | 2016 | 107 m, part of the Suseo high-speed railway. |
Tunel Emisor Central | Wastewater | Mexico City, Mexico | 49,742 m (30.908 mi) | 1975 | 6.5 m in diameter |
River Arpa – Lake Sevan tunnel | Water supply | Armenia (at the time of construction Soviet Union) | 48,358 m (30.048 mi) | 1981 | Longest tunnel built to restore ecological balance. Transfers water from the Arpa to Lake Sevan to recover its level. |
Pahang – Selangor Raw Water Transfer Project | Water supply | Pahang & Selangor, Malaysia | 44,600 m (27.713 mi) | 2014 | 5.2 m in diameter |
Wuhan Metro Line 2 | Metro | Wuhan, China | 44,347 m (27.556 mi) | 2012–2019 | — |
Lyublinsko-Dmitrovskaya Line (Zyablikovo – Fiztekh) | Metro | Moscow Metro, Russia (construction started at the time of Soviet Union) | 44,300 m (27.527 mi) | 1995–2023 | |
Shanghai Subway: Line 7 | Metro | Shanghai, China | 44,200 m (27.465 mi) | 2009–2010 | |
#1 Tunnel, Yellow River Diversion to Shanxi North Line | Water supply | Shanxi, China | 43,670 m (27.135 mi) | 2011 | See South–North Water Transfer Project |
#7 Tunnel, Yellow River Diversion to Shanxi South Line | Water supply | Shanxi, China | 43,500 m (27.030 mi) | 2002 | See South–North Water Transfer Project |
Beijing Subway Line 8 | Metro | Beijing, China | 42,600 m (26.470 mi) | 2012–2021 | |
Shanghai Metro Line 15 | Metro | Shanghai, China | 42,300 m (26.284 mi) | 2021 | |
Chengdu Metro Line 5 | Metro | Chengdu, China | 42,300 m (26.284 mi) | 2019 | |
Beijing Subway Line 14 | Metro | Beijing, China | 42,000 m (26.098 mi) | 2015–2021 | |
Tianjin Metro Line 6 | Metro | Tianjin, China | 42,000 m (26.098 mi) | 2016–2021 | |
Downtown line | Metro | MRT, Singapore | 41,900 m (26.035 mi) | 2013–2017 | Longest rapid transit line in South East Asia |
Nanjing Metro Line 3 | Metro | Nanjing, China | 41,567 m (25.829 mi) | 2011–2015 | From Xinghuolu station to Mozhoudonglu station. |
Suzhou Metro: Line 4 | Metro | Suzhou, China | 41,500 m (25.787 mi) | 2017 | |
Serpukhovsko-Timiryazevskaya Line (Altufyevo – Bulvar Dmitriya Donskogo) | Metro | Moscow Metro, Russia (construction started at the time of Soviet Union) | 41,470 m (25.768 mi) | 1983–2002 |
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Frequently asked questions
How is Longest Tunnels in the World organized?
The table starts in the source data's default order. You can sort and filter the loaded rows by the displayed fields.
How much data is available on this page?
The complete dataset contains 282 entries. This page loads the first 40 rows as a fast preview, so on-page sorting and filtering apply to that preview. Downloads contain all 282 rows.
Can I download the complete dataset?
Yes. CSV, JSON, and Excel downloads contain all 282 rows. Before republishing the data, review the source and any usage terms listed on this page; dtbse does not replace the original source's licensing terms.
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