bn:03785501n
Noun Concept
Categories: Coastal construction, Undersea tunnels, Articles with short description, All articles needing additional references
EN
undersea tunnel  underwater tunnel  subsea road tunnel  subsea tunnel  Undersea tunnels
EN
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. Wikipedia
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EN
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. Wikipedia
Tunnel which passes under a sea for some portion of its extent Wikidata