submerged floating tunnel

A submerged floating tunnel (SFT), also known as submerged floating tube bridge (SFTB), suspended tunnel, or Archimedes bridge, is a proposed design for a tunnel that floats in water, supported by its buoyancy.

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Wikimedia, Wikidata
Archimedes bridge; SFT; SFTB; floating underwater tunnel; submerged floating tube bridge; suspended tunnel; underwater floating tunnel
bridge, tunnel, 

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tunnel, 

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Location: KML, Cluster Map, Maps,

Frameless

Archimedes bridge

Type	Subtype	Date	Description	Notes	Source
commons	image		Archimedes bridge		Commons