Submerged floating tunnel
Proposals
A submerged floating tunnel has never been built (as of 2016), but several proposals have been floated by different entities.

Submerged floating tunnel

Section Title: Proposals
Table Section Text: A submerged floating tunnel has never been built (as of 2016), but several proposals have been floated by different entities.

Date	Place	Country	Proposer	link

1886	Patent N.9558	United Kingdom	Sir Edward James Reed

1923	Patent	Norway	Trygve Olsen

1947	patent pending nr. 91699	Norway	Erik Ødegård

1969	Strait of Messina	Italy	Alan Grant

1998	Høgsfjorden	Norway	Norwegian Public Roads Administration

April 16, 2003	Transatlantic tunnel	N/A	Discovery Channel's Extreme Engineering (Season 1, episode 3)

2011	Sognefjord	Norway	Norwegian Public Road Administration

2016	Bjørnafjord	Norway	Norwegian Public Road Administration

June 6, 2017	Multiple potential sites	N/A	Hyperloop One

?	Funka Bay, Hokkaido	Japan	Society of Submerged Floating Tunnel Technology

?	Lake Washington, Seattle	United States	James Felch / Subterra, Inc.

?	Vancouver Island	Canada	Ministry of Transportation of British Columbia, Canada

?	Lugano Lake	Switzerland

Cook Strait	New Zealand	Stuff.co.nz t

Sentence(s)

In Norway, a first patent on Submerged floating tunnel structure was presented in 1923 by Trygve Olsen and a new request was done in 1947 by Erik Ødegård.

final_sentence: In Norway, a first patent on Submerged floating tunnel structure was presented in 1923 by Trygve Olsen and a new request was done in 1947 by Erik Ødegård.