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They Didn’t Dig This Tunnel… They Sank It Under the Ocean! 🌊

What looks impossible is actually one of the most precise engineering projects on Earth. Massive concrete tunnel sections are built on land, floated into the sea, then carefully lowered to the ocean floor with only centimeters of error allowed. Even the pressure of seawater is used to lock the tunnel pieces together.
This is how underwater tunnels are really built.
🎥 Watch till the end for the unbelievable final result. 📌 Subscribe for more mind-blowing engineering and technology videos.
Channel: odip official

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Видео They Didn’t Dig This Tunnel… They Sank It Under the Ocean! 🌊 канала Odip Official
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