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Image depicting Denmark and Germany building the longest undersea tunnel!

Denmark and Germany building the longest undersea tunnel!

 

Recommended for Preparatory Grades

When it opens in 2029, Germany and Denmark will be connected by the world’s longest underwater tunnel. The tunnel will go up to 40 metres below the Baltic Sea. So, it will take a lot less time to get from one country to the other.

What is an underwater tunnel?

A tunnel that is partially or wholly constructed under the water of a body of water, such as a river or the ocean, is referred to as an underwater tunnel.

The Fehmarnbelt Tunnel was finally built in 2020, after more than a decade of planning. In the months since then, work on a temporary harbour on the Danish side of the project has been finished. It will be the site of the factory that will soon start building the 89 huge pieces of concrete that will make up the tunnel.

Key facts!

  • The tunnel will be 18 kilometres long, and it is one of Europe’s biggest infrastructure projects right now.
  • It is meant to replace the ferry service that is already there.
  • Every year, this service moves millions of people.
  • If you drive or take the train instead of the ferry, the crossing will only take seven minutes, instead of the 45 minutes, it takes now.
  • This tunnel for cars and trains, which will be called the Fehmarnbelt Fixed Link, will be the longest tunnel of its kind anywhere in the world.
  • It will have two double-lane highways separated by a service passageway and two electrified rail tracks.
  • Experts say that the tunnel will help freight trucks and trains as well as passenger trains and cars.
  • This is because it will make a land route between Sweden and Central Europe that is 160 kilometres shorter than the current route.

“CurioEd”, a user on YouTube, explains how underwater tunnels are constructed.

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