immersed tube

An immersed tube is a kind of undersea tunnel composed of segments, constructed elsewhere and floated to the tunnel site to be sunk into place and then linked together. They are commonly used for road and rail crossings of rivers, estuaries and sea channels/harbours. Immersed tubes are often used in conjunction with other forms of tunnel at their end, such as a cut and cover or bored tunnel, which is usually necessary to continue the tunnel from near the water's edge to the entrance (portal) at the land surface.

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Wikimedia, Wikidata
immersed tunnel
undersea tunnel, 
class, undersea tunnel, Fehmarn Sound Tunnel, Hong Kong–Zhuhai–Macau Bridge Undersea Tunnel, Marmaray Tunnel, Fehmarn Belt Tunnel, 

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Location: KML, Cluster Map, Maps,
6 places

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  Fehmarn Belt Tunnel ⓘ
  

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  Fehmarn Sound Tunnel ⓘ
  Planned tunnel in Germany

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  Hong Kong–Zhuhai–Macau Bridge Undersea Tunnel ⓘ
  undersea tunnel, part of Hong Kong–Zhuhai–Macau Bridge

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  Western Harbour Crossing ⓘ
  harbor-crossing road tunnel in Hong Kong

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  Cross-Harbour Tunnel ⓘ
  tunnel in Hong Kong

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  Marmaray Tunnel ⓘ
  railway tunnel in Istanbul, Turkey

Frameless

2e-Coentunnel-in-Aanbouw2

2e-Countunnel-in-Aanbouw

Bouw drijvend metrotunnel element in Brussel 1985

Drijvend metrotunnel element in Brussel

Warnowtunnel 01 06-1

Tunnel bouwen cartoon

Goega Bridge Submarine Tunnel2

Goega Bridge Submarine tunnel

2011-01-31 Tweede Coentunnel Bouwdok Barendrecht

羽田トンネル

Type	Subtype	Date	Description	Notes	Source
site	tunnel		Fehmarn Belt Tunnel	proposed rail infrastructure, proposed tunnel, road tunnel, immersed tube, railway tunnel	Wikidata
site	tunnel		Fehmarn Sound Tunnel	proposed tunnel, road tunnel, railway tunnel, immersed tube	Wikidata
site	tunnel		Hong Kong–Zhuhai–Macau Bridge Undersea Tunnel	road tunnel, undersea tunnel, immersed tube	Wikidata
site	tunnel		Western Harbour Crossing	toll tunnel, trunk road, road tunnel, thoroughfare, immersed tube	Wikidata
site	tunnel	1972	Cross-Harbour Tunnel	undersea tunnel, immersed tube, toll tunnel, road tunnel	Wikidata
site	tunnel	2013	Marmaray Tunnel	TCDD Taşımacılık, immersed tube, railway tunnel	Wikidata
commons	image		2e-Coentunnel-in-Aanbouw2		Commons
commons	image		2e-Countunnel-in-Aanbouw		Commons
commons	image		Bouw drijvend metrotunnel element in Brussel 1985		Commons
commons	image		Drijvend metrotunnel element in Brussel		Commons
commons	image		Warnowtunnel 01 06-1		Commons
commons	image		Tunnel bouwen cartoon		Commons
commons	image		Goega Bridge Submarine Tunnel2		Commons
commons	image		Goega Bridge Submarine tunnel		Commons
commons	image		2011-01-31 Tweede Coentunnel Bouwdok Barendrecht		Commons
commons	image		羽田トンネル		Commons