Denmark's $8bn Lego-Like Tunnel to Germany

[@AgricultureTechUS]

This is such an interesting and well-crafted video. Great job!

[@realkacy]

The mixture of concrete and saltwater makes me always nervous. It would be interesting to the viewers, how corrosion in these structures are handled as well what the projected lifetime expectancy is.

[@onurturkyilmaz]

Nothing is eternal bro

[@realkacy]

@@onurturkyilmaz that is a given. I'm interested if the structure should last 10, 20, 50 or 100 years.

[@danielraymadden]

I would have a seal on outside that allows outside pressure to create a tighter seal.. a wedge shape that increases pressure as it is forced inward.....

[@DANTHETUBEMAN]

the rubber will brake down in 60 year's, i would assrmble then inject high pressure concrete in those seal area's. 😊

[@maroon9273]

They have to agressively maintain those tunnels.

[@danielraymadden]

Do they lay a bed of gravel to create a stronger base to lay tunnel on top.....

[@jamesau4296]

Hoping Copenhagen are not going to be flooded with tourist, like Barcelona