Norway plans to build "submerged floating bridges" to allow drivers to cross its bodies of water.
The Next Web reports:
"The 'submerged floating bridges' would consist of large tubes suspended by pontoon-like support structures 100 feet below water.
Each will be wide enough for two lanes of traffic, and the floating structures should ease the congestion on numerous ferries currently required to get commuters from Point A to Point B.
Each support pontoon would then be secured to a truss or bolted to the bedrock below to keep things stable." A trip from Kristiansand to Trondheim is roughly 680 miles and could take as long as 21 hours due to the seven ferry trips required along the way.
While building normal bridges would cost significantly less than the $25 billion in funds required for the tunnel project, the fjords and difficult terrain make them unsuitable candidates.
The pricey tunnel project could cut the trip time to just 10 hours when it's expected to be finished in 2035.
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At 100 feet deep water has a sea water has a pressure of a little over 43 pounds per square inch.
If the tube gets stress cracks the pressure will push water into the tube.
Just to give you an idea, the average water pressure in a garden hose is anywhere between 55-65 pounds.
Would I drive through a floating tube 100 feet deep?
I think not!
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