Search results
This list of longest tunnels ranks tunnels that are at least 13 km (8.1 mi) long. Only continuous tunnels are included. Pipelines, even those that are buried, are excluded. The longest tunnels have been constructed for water distribution, followed by tunnels for railways.
People also ask
How long is a tunnel?
How long does it take to travel through a tunnel?
How long is the Channel Tunnel?
A tunnel is relatively long and narrow; the length is often much greater than twice the diameter, although similar shorter excavations can be constructed, such as cross passages between tunnels. A tunnel made by an animal is commonly referred to as a burrow and may or may not have multiple portals.
- The Delaware Aqueduct is the longest tunnel in the world. Location: New York State, United States.
- Päijänne Water Tunnel is the second longest tunnel in the world. Location: Southern Finland. Length: ~120,000 m. Type: Water Supply. The Päijänne Water Tunnel is the second longest tunnel in the world at just over 120,000 meters long.
- The Dahuofang Water Tunnel is the longest in China. Location: Liaoning Province, China. Length: >85,000 m. Type: Water Supply. The Dahuofang Water Tunnel is the third longest continuous tunnel in the world.
- Orange–Fish River Tunnel consumed a lot of concrete. Location: South Africa. Length: >82,000 m. Type: Water Supply. The Orange-Fish River Tunnel is an irrigation tunnel located in South Africa.
The 3,100-mile-long tunnel would house a magnetically-levitated train traveling 5,000 miles per hour. The estimated trip time is 54 minutes -- almost seven hours shorter than an average transatlantic flight.
Jun 23, 2024 · Channel Tunnel, rail tunnel between England and France that runs beneath the English Channel. It is 50 km (31 miles) long and consists of three tunnels: two for rail traffic and a central tunnel for services and security.
- The Editors of Encyclopaedia Britannica
All major ancient civilizations developed tunneling methods. In Babylonia, tunnels were used extensively for irrigation; and a brick-lined pedestrian passage some 3,000 feet (900 metres) long was built about 2180 to 2160 bce under the Euphrates River to connect the royal palace with the temple.
The Channel Tunnel (French: Tunnel sous la Manche), sometimes referred to informally as the Chunnel, is a 50.46-kilometre (31.35 mi) undersea railway tunnel, opened in 1994, that connects Folkestone (Kent, England) with Coquelles (Pas-de-Calais, France) beneath the English Channel at the Strait of Dover.
