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An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. They are often used where building a bridge or operating a ferry link is unviable, or to provide competition or relief for existing bridges or ferry links.[1] While short tunnels are often road tunnels which may admit motorized traffic, unmotorized traffic or both, concerns with ventilation lead to the longest tunnels (such as the Channel Tunnel or the Seikan Tunnel) being electrified rail tunnels.
^Sullivan, Walter. Progress In Technology Revives Interest In Great Tunnels, New York Times, June 24, 1986. Retrieved 15 August 2010.
An underwatertunnel is a tunnel which is partly or wholly constructed under the sea or a river. They are often used where building a bridge or operating...
East West Metro Tunnel is a underwater river tunnel of Kolkata Metro in Kolkata, West Bengal. The river tunnel is constructed underneath Hooghly River...
Mujibur Rahman Tunnel (Bengali: বঙ্গবন্ধু শেখ মুজিবুর রহমান টানেল), also known as Karnaphuli Tunnel, is an underwater expressway tunnel in the port city...
A shark tunnel (or aquarium tunnel, acrylic tunnel and exhibit tunnel) is an underwatertunnel that passes through an aquarium, typically with sharks and...
and tunnels have broken or set records. Opened in 1927, the Holland Tunnel was the world's first mechanically ventilated underwater vehicular tunnel. The...
continuous underwatertunnel for vehicular traffic in the world. The Holland Tunnel was the world's first mechanically ventilated tunnel. Its ventilation...
underwatertunnels, the two most common being bored tunnels or immersed tubes, examples are Bjørvika Tunnel and Marmaray. Submerged floating tunnels are...
century old: the original Thames Tunnel was the world's first underwatertunnel. The figure and list above leaves out a tunnel to the site of the old Ferranti...
The Coatzacoalcos UnderwaterTunnel is a tunnel under the Coatzacoalcos River, connecting the cities of Coatzacoalcos and Villa de Allende in the Mexican...
Mesopotamia. The next underwatertunnel known to have been built is the Thames Tunnel, completed in 1841. A description of the tunnel as being built and...
to keep the Thames Tunnel dry Brunel's Thames Tunnel BBC News – Slideshow of Thames Tunnel images London's Oldest UnderwaterTunnel – slideshow by Life...
The CESC Tunnel is situated under the Hooghly River in Kolkata, West Bengal, India. This is the first underwatertunnel in Asia, completed in 1931. It...
longest underwater section of any tunnel in the world and is the third-longest railway tunnel in the world. The speed limit for trains through the tunnel is...
Tunnel is an underwatertunnel in Thorold, Ontario, Canada carrying Highway 58 underneath the Welland Canal. Built between 1965 and 1967, the tunnel is...
It was the longest underwatertunnel in the world until 1987 and, for more than 100 years, it was the longest mainline railway tunnel within the UK. It...
connect Lines 3 and 6. The Line 2 has India's first and biggest underwater metro tunnel, along with the deepest metro ventilation shaft. In the deepest...
an example of a cross-national metropolitan area linked by an underwater bridge-tunnel. A combination of a Finland to Estonia and a Finland to Sweden...
When the tunnel opened, it was the first underwatertunnel in Louisiana. Shortly after, two new tunnels were built in the state: the Harvey Tunnel which...
underwatertunnels, the two most common being bored tunnels or immersed tubes, examples are Bjørvika Tunnel and Marmaray. Submerged floating tunnels are...
offices. This station solely serves as a tourist attraction due to the underwatertunnel segment under Hooghly River, indicative of dense blue LED lights encompassing...
the underwatertunnel, as well as prevent silt runoff downstream. Construction for the diversionary channel, as well as the ride's underwatertunnel, required...
main attractions is the 112 m (367 ft) long transparent acrylic underwater viewing tunnel, which is one of the longest of its kind in the world. The curvature...
Tahoe, located in Nevada and California. It is said to live in an underwatertunnel that is beneath Cave Rock. Founder of the University of California...
floating tunnel (SFT), also known as submerged floating tube bridge (SFTB), suspended tunnel, or Archimedes bridge, is a proposed design for a tunnel that...
external flights. Bangabandhu Sheikh Mujibur Rahman Tunnel, the first and only underwatertunnel of South Asia, is located in Chittagong. The city is...
which was completed in April 2009. The additions included a new underwatertunnel, Shark Walk, a revamped Pacific Ocean tank, and a complete rerouting...
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