INFRASTRUCTURE
Tunnels
Longest Tunnels
This list features the longest tunnels in the world.
RANK | TUNNEL | LOCATION | LENGTH | TYPE | YEAR |
1 | Delaware Aqueduct | New York, United States | 137,000 m (85.128 mi) | Water supply | 1945 |
2 | Päijänne Water Tunnel | Southern Finland, Finland | 120,000 m (74.565 mi) | Water supply | 1982 |
3 | Suzhou Rail Transit Line 3-11 | Suzhou, China | 86,542 m (53.775 mi) | Metro | 2019–2023 |
4 | Dahuofang Water Tunnel | Liaoning, China | 85,320 m (53.015 mi) | Water supply | 2009 |
5 | Orange–Fish River Tunnel | South Africa | 82,800 m (51.450 mi) | Water supply | 1972 |
6 | Bolmen Water Tunnel | Kronoberg/Scania, Sweden | 82,000 m (50.952 mi) | Water supply | 1987 |
7 | Chengdu Metro Line 6 | Chengdu, China | 68,223 m (42.392 mi) | Metro | 2020 |
8 | Neelum–Jhelum Hydropower Tunnel | Muzaffarabad, Azad Kashmir, Pakistan | 68,000 m (42.253 mi) | Hydroelectric | 2017 |
9 | Tunel Emisor Oriente | Mexico City, Mexico | 62,500 m (38.836 mi) | Wastewater | 2019 |
10 | Qingdao Metro Line 1 | Qingdao, China | 59,818 m (37.169 mi) | Metro | 2020–2021 |
11 | Guangzhou Metro Line 18 | Guangzhou, China | 58,300 m (36.226 mi) | Metro | 2021 |
References
