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It is the only fixed link between the island of Great Britain and the European mainland. At its lowest point, it is 75 m (246 ft) below the sea bed and 115 m (377 ft) below sea level. [5] [6] [7] At 37.9 km (23.5 miles), it has the longest underwater section of any tunnel in the world and is the third-longest railway tunnel in the world.
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. ... Road tunnel connecting Asia and Europe in Istanbul: 5.4 km: 106 m:
Proposed undersea tunnels in Europe (14 P) C. Channel Tunnel (4 C, 40 P) N. Subsea tunnels in Norway (37 P) ... Underwater Road Tunnel Salamina island - Perama; V.
The 16.5-mile road tunnel will save drivers 11 hours on Norway’s E39 coastal highway ... a new 17-mile underwater tunnel could link Europe’s high-speed rail network to North Africa by 2030 ...
The Fehmarn Belt fixed link (Danish: Femern Bælt-forbindelsen, German: Fehmarnbelt-Querung) or Fehmarn Belt tunnel is an under-construction immersed tunnel, which will connect the Danish island of Lolland with the German island of Fehmarn, crossing the 18-kilometre-wide (11 mi) Fehmarn Belt in the Baltic Sea.
A new 17-mile underwater tunnel could link Europe’s high-speed rail network to North Africa by 2030 – if a €6bn proposal goes ahead.. The tunnel would introduce a high-speed train service by ...
Longest underwater road tunnel in the world Water supply #6 Tunnel, Yellow River Diversion to Shanxi South Line Shanxi, China 14,400 m (8.948 mi) 2002 See South–North Water Transfer Project: Water supply Ala Mountain Pass Water Supply Project Xinjiang, China 14,346 m (8.914 mi) 2010 Road Twin Tube Ovit Tunnel [81]
[3]: 268 The oldest immersed tube in Europe is the Maastunnel in Rotterdam, which opened in 1942. [4] The Marmaray Tunnel, connecting the European and Asian sides of Istanbul, Turkey, is the world's deepest immersed tunnel at 55 metres (180 ft) below sea level; [5] it is the first rail link crossing the straits. Construction began in 2004 and ...