Inside the World's Longest Underwater Tunnel – Fehmarnbelt Tunnel

Описание: Record-breaking 18-kilometer underwater tunnel—a feat never attempted at this scale. The Fehmarnbelt Tunnel will be the longest immersed road and rail tunnel in the world, cutting through the Baltic Sea to connect Denmark and Germany like never before.

But how do you build a tunnel beneath the sea that can withstand extreme conditions for over a century?

Inside the Construction Process:
🚧 The Largest Tunnel Factory in Europe – Producing 73,000-ton tunnel sections, each longer than two football fields.
🌊 Excavating the Seabed – A precise 60-meter-wide trench is dredged to make way for the tunnel.
🔗 Immersion & Sealing – How engineers lower, connect, and seal massive tunnel segments with millimeter precision.
🏗️ Engineering Challenges & Innovations – From seismic resistance to advanced waterproofing, ensuring the tunnel’s safety and longevity.
🌍 Economic & Environmental Impact – Cutting travel times, boosting trade, and reducing carbon emissions.

With billions invested and years of engineering breakthroughs, this tunnel is a game changer for European infrastructure. But is this just the beginning?

💡 What’s the next megaproject Europe should take on? Drop your thoughts in the comments below!

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00:00 A tunnel like no other
01:05 The Problem
02:26 Search For The Solution
04:08 The Fehmarnbelt Tunnel Building The Impossible