Longest Tunnels in the World - Free Download
278 of the world's longest tunnels categorized by type (water supply, road, rail), with length, location, and year opened. Contains 278 records. Download in Excel, CSV, PDF formats.
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- Contains 278 records / 7 fields
- Available for free download in Excel, CSV, and PDF formats
- Data sourced from: https://github.com/sharmadhiraj/free-json-datasets
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⚠️ Showing first 20 of 278 records. Download the file for complete data.
| Rank | Tunnel Type | Tunnel Name | Location | Length Km | Year Opened | Notes |
|---|---|---|---|---|---|---|
| 1 | Water supply | Delaware Aqueduct | New York State, United States | 137,000 m (85.128 mi) | 1945 | 4.1 m in diameter (13.2 m2). New York City's main water supply tunnel. |
| 2 | Water supply | Päijänne Water Tunnel | Southern Finland, Finland | 120,000 m (74.565 mi) | 1982 | 16 m2 cross section. Main water supply tunnel for the Helsinki metropolitan area in southern Finland, drilled through solid rock. |
| 3 | Metro | Suzhou Metro Line 3-11 | 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 |
| 4 | Water supply | Dahuofang Water Tunnel | Liaoning, China | 85,320 m (53.015 mi) | 2009 | 8 m in diameter (50 m2 cross section) |
| 5 | Water supply | Orange–Fish River Tunnel | South Africa | 82,800 m (51.450 mi) | 1972 | Longest continuous enclosed aqueduct in the Southern Hemisphere (22.5 m2 cross section). Built to divert water from the Orange River to the Great Fish River. |
| 6 | Water supply | Bolmen Water Tunnel | Kronoberg/Scania, Sweden | 82,000 m (50.952 mi) | 1987 | 8 m2 cross section |
| 7 | Metro | Istanbul Metro (Line M11) | Istanbul, Turkey | 69,000 m (42.875 mi) | 2023–2025 | Longest metro tunnel in Europe and longest tunnel in Turkey |
| 8 | Metro | Chengdu Metro Line 6 | Chengdu, China | 68,223 m (42.392 mi) | 2020 | |
| 9 | Hydroelectric | Neelum–Jhelum Hydropower Tunnel | Muzaffarabad, Azad Kashmir, Pakistan | 68,000 m (42.253 mi) | 2017 | Part of the 969 MW Neelum–Jhelum Hydropower Plant |
| 10 | Wastewater | Tunel Emisor Oriente | Mexico City, Mexico | 62,500 m (38.836 mi) | 2019 | 7 m in diameter. Longest wastewater tunnel. |
| 11 | Metro | Qingdao Metro Line 1 | Qingdao, China | 59,818 m (37.169 mi) | 2020–2021 | |
| 12 | Metro | Guangzhou Metro Line 18 | Guangzhou, China | 58,300 m (36.226 mi) | 2021 | |
| 13 | Metro | Guangzhou Metro Line 3 | Guangzhou, China | 57,930 m (35.996 mi)(Excl. branch) | 2005–2018 | |
| 14 | Metro | Moscow Metro Bolshaya Koltsevaya line | Moscow, Russia | 57,538 m (35.752 mi)(Excl. branch) | 2018–2023 | Longest metro/rapid transit circular line |
| 15 | Railway Twin Tube | Gotthard Base Tunnel | 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… |
| 16 | Metro | Beijing Subway Line 10 | Beijing, China | 57,100 m (35.480 mi) | 2008–2013 | |
| 17 | Railway Single Tube | Seikan Tunnel | Tsugaru Strait, Japan | 53,850 m (33.461 mi) | 1988 | 74 m2; 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). |
| 18 | Metro | Beijing Subway Line 6 | Beijing, China | 53,400 m (33.181 mi) | 2012–2018 | |
| 19 | Water supply | Želivka Water Tunnel | Central Bohemian Region, Czech Republic | 51,970 m (32.293 mi) | 1972 | 9–12 m2 |
| 20 | Metro | Seoul Subway: Line 5 | 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. |