The longest underwater tunnel in the world will extend into the Baltic Sea



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It is planned that in 2029. it will already be possible to drive the new 18 kilometers Fehmarnbelt a tunnel connecting Denmark and Germany. It will be built between two islands: Fehmarn in Germany and Loland in Denmark. It should be the longest underwater tunnel that both cars and trains can use.

“Today, it takes about four and a half hours to travel by train from Copenhagen to Hamburg,” explained Jens Ole Kaslund, technical director of Danish company Femern A / S, which is implementing the project. “Once the tunnel is complete, the same trip will take two and a half hours.”

For those traveling by car between Denmark and Germany, the trip will also be shortened by about an hour. Now you must take the ferry and it takes about 45 minutes. Once the tunnel is complete, it will take about 10 minutes by car to cross it. Trains will cross it in 7 minutes.

Work has already started, but only from the Danish side. In Germany, a court decision was pending because conservationists and ferry companies opposed the tunnel. In early November, the court allowed the construction of the tunnel, so works should start soon in Germany.

So far, preparations are underway, then a factory will be built in Loland. Construction of the tunnel itself is scheduled to begin in 2023.

The project estimates that construction will require as much steel as the 50 Eiffel Towers would need.

Construction will decouple about 7 billion. EUR. The tunnel will pay off.

VIDEO: Take a trip through the Fehmarnbelt tunnel




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