The longest tunnel of any kind is the New York City West Delaware water-supply tunnel, begun in 1937 and completed in 1944. It has a diameter of 4.1m 13ft 6in and runs for 169km 105miles from the Rondout reservoir into the Hillview reservoir, in Yonkers, New York, USA.
https://youtube.com/watch?v=GDRcCvQNY-g
Where is the world’s longest water tunnel?
The longest tunnels have been constructed for water distribution, followed by tunnels for railways.
World’s longest tunnels (in use)
| Name | Delaware Aqueduct |
|---|---|
| Location | New York State, United States |
| Length | 137,000 m (85.1 mi) |
| Year | 1945 |
| Comment | 4.1 m in diameter (13.2 m2). New York City’s main water supply tunnel. |
Where is the second longest tunnel in the world?
The Seikan Tunnel is the second longest tunnel in the world, after the Gotthard Base Tunnel in Switzerland. It is 53.8 km (33.4 miles) long, 23.3 km (14.3 miles) of which lie under the Tsugaru Strait that separates Honshu from Hokkaido.
What are the 5 longest tunnels in the world?
- Lærdal Tunnel. The longest road tunnel in the world: Lærdal tunnel in Norway.
- Jinpingshan Tunnel. The Jinpingshan Tunnel is China’s deepest transportation tunnel.
- Gotthard Road Tunnel. Gotthard Road Tunnel.
- Arlberg Road Tunnel.
- Mount Erlang Tunnel.
- Yamate Tunnel.
- Zhongnanshan Tunnel.
- Ryfylke Tunnel.
Where is the world’s deepest tunnel?
Gotthard Base Tunnel, Switzerland
The Gotthard Base Tunnel is the world’s longest and deepest tunnel. It runs under the Swiss alps between the towns of Erstfeld in the north and Bodio in the south. The tunnel is 57 km long and reaches a depth of 2,300 meters.
Which country has largest tunnel?
The World’s Longest Road Tunnel – Laerdal Tunnel, Norway.
Where is the oldest tunnel in the world?
Fritchley Tunnel is a disused railway tunnel at Fritchley in Derbyshire, England, which is believed to be the oldest surviving example in the world.
What is the oldest tunnel in the world?
The oldest in the world
Today, the Butterley Gangroad line has much to celebrate: as well as the official confirmation that the railway tunnel is the oldest surviving in the world, the line itself is also one of the world’s oldest and one of the first on which a steam locomotive successfully operated.
Is there a tunnel under the ocean?
In terms of underwater tunnels in general, though, the top honor goes to the Channel Tunnel, which connects England and France by rail. Its submerged portion runs for 37.9 kilometers, the longest of any underwater tunnel in the world.
What is the deepest underwater tunnel?
Eiksund road tunnel
The 7,765m long Eiksund road tunnel is, to date, the world’s deepest undersea tunnel, reaching a depth of 287m below mean sea level at its deepest point.
What’s the biggest tunnel in the world?
1. -The Laerdal tunnel. With its 24.5 kilometers, Laerdal tunnel is the longest in the world, traversing several mountainous formations between Laerdal and Aurland, in western Norway. Construction work began in 1995 and finished at the end of 2000.
What is the most famous tunnel?
10 of the world’s greatest tunnels
- Gotthard Base Tunnel (Switzerland)
- Channel Tunnel (England and France)
- Laerdal Tunnel (Aurland, Norway)
- Tokyo Bay Aqua-Line (Tokyo)
- Eisenhower Tunnel (Colorado)
- Spiralen Tunnel (Drammen, Norway)
- Guoliang Tunnel (Henan Province, China)
- SMART (Kuala Lumpur, Malaysia)
Where is the world’s shortest underwater tunnel?
Harderwijk, Netherlands
World’s Shortest Underwater Tunnel: Aqueduct Veluwemeer (Harderwijk, Netherlands) is only 78 feet long!
What city has the most underground tunnels?
Derinkuyu, Cappadocia, Turkey
Cappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest.
Which is longest and biggest tunnel in the world?
1 – Lærdal, Norway, between Lærdal and Aurland: measuring 24.51 kilometres in length, built in 2000. 2 – Yamate Tunnel, Japan, in Tokyo: measuring 18.2 kilometres in length, built in 2015.
Which is Asia largest tunnel?
India’s longest road tunnel and Asia’s longest bi-directional tunnel is Zojila tunnel. This will help in boosting tourism in the Himalayan Region.
What is the oldest underground city?
The Derinkuyu underground city
The Derinkuyu underground city (Cappadocian Greek: Μαλακοπή Malakopi; Turkish: Derinkuyu Yeraltı Şehri) is an ancient multi-level underground city in the Derinkuyu district in Nevşehir Province, Turkey, extending to a depth of approximately 85 metres (279 ft).
How many underwater tunnels are there in the world?
“The first infrastructures of this type were built at the end of the 19th century, and at present there are nearly 200 underwater tunnels built worldwide.
How deep is the Virginia Beach tunnel underwater?
The centerline of the HRBT tunnels cross a naturally deep channel ranging from 50 to 60 feet deep, 1-1/2 mile wide, with water only 6–10 feet deep between the edge of the deep channel and each shore.
What countries have underwater tunnels?
List of notable examples
| Name | Place | Length |
|---|---|---|
| Seikan Tunnel | Seikan, Japan | 53.8 km |
| Sydney Harbour Tunnel | Sydney, Australia | 2.8 km |
| Channel Tunnel | England – France | 50.4 km |
| Hitra Tunnel | Trøndelag, Norway | 5.6 km |
What is the deepest humans can go underwater?
The maximum depth reached by anyone in a single breath is 702 feet (213.9 metres) and this record was set in 2007 by Herbert Nitsch. He also holds the record for the deepest dive without oxygen – reaching a depth of 831 feet (253.2 metres) but he sustained a brain injury as he was ascending.