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The world's longest underwater tunnel, 18 km long, will connect Denmark and Germany in just 7 minutes. Work will use enough steel to build 50 Eiffel Towers.

Written by Valdemar Medeiros
Published 21/10/2024 às 10:27
The world's longest underwater tunnel, 18 km long, will connect Denmark and Germany in just 7 minutes. It will use enough steel to build 50 Eiffel Towers.
Photo: Illustration of the largest underwater tunnel in the world

Underwater tunnel will connect Denmark and Germany in just 7 minutes. Discover the Fehmarnbelt Tunnel, the largest underwater tunnel in the world, which promises to be ready in 2029.


Tunnel will connect Denmark and Germany: Quick trip that connects countries in just minutes: Discover the Fehmarnbelt tunnel, the LARGEST underwater tunnel in the WORLD. Have you ever imagined crossing borders in less than 7 minutes? This is the incredible proposal of the Fehmarnbelt Tunnel, the largest underwater tunnel in the world. 18 kilometers long, it connects Rodbyhavn, in Denmark, to Fehmarn, in Germany. At the moment, The journey between these two points is only possible by ferry, a journey that takes 45 minutes. With the new tunnel, this time will be drastically reduced, transforming the way we travel between the two countries.

The Fehmarnbelt Tunnel is expected to revolutionize transport in the region, offering a fast and efficient alternative, which promises not only to make life easier for travelers, but also to boost trade and tourism between Denmark and Germany. Stay up to date with this news that will change the way we see international travel!

The world's largest underwater tunnel will be ready in 2029 and it will be a huge milestone for the construction industry!

The journey in the tunnel connecting Denmark and Germany can be done either by train, lasting seven minutes, or by car, lasting ten minutes.

The route traced across the bottom of the Baltic Sea will also be the shortest between the Scandinavian region and the rest of Europe. Construction of the Fehmarnbelt Tunnel began in 2020 on the Danish side and in 2021 on the German side. The largest underwater tunnel is expected to be ready in 2029.

The world's longest underwater tunnel, 18 km long, will connect Denmark and Germany in just 7 minutes. It will use enough steel to build 50 Eiffel Towers.
Photo: Advanced works on the Fehmarnbelt Tunnel/Disclosure

Impressive, the tunnel work will connect Denmark and Germany and requires 360 tons of steel, equivalent to what is needed to build 50 Eiffel Towers like those on Paris' most famous postcard. Around 19 million cubic meters of sand, stone and soil are being dredged to accommodate the Fehmarnbelt Tunnel.

At sea, hundreds of sailors work to submerge the constructed parts of the world's largest underwater tunnel, divided into 70 standard and 10 special sections. Each of them weighs 73 thousand tons and is 217 meters long.

The expectation is that the Fehmarnbelt underwater tunnel can operate for at least 120 years

The pieces are assembled and melted on dry land and then positioned on the seabed with the help of boats. The tunnel will connect Denmark and Germany and, according to the project website, around 60 to 70 vessels were used for this purpose.

The world's longest underwater tunnel, 18 km long, will connect Denmark and Germany in just 7 minutes. It will use enough steel to build 50 Eiffel Towers.
Photo: Fehmarnbelt Tunnel Works/Disclosure

When the world's largest underwater tunnel is complete, technical and mechanical installation teams will work simultaneously to equip the world's largest underwater tunnel with railway tracks, ventilation, cameras, signage, paintings, among others. There is also a portal that connects the Fehmarnbelt Tunnel, the submerged part, with the railway and the road on dry land.

The largest underwater tunnel is expected to operate for at least 120 years. In addition to reducing travel time between European countries, the project aims to reduce CO2 emissions by offering a shorter and faster route, as well as reducing traffic congestion on the roads.

Tunnel will connect Denmark and Germany after billion-dollar investment

A Fermarn A/S, the company responsible for execution, highlights that the Fehmarnbelt Tunnel is one of the largest infrastructure projects in Europe, with a total budget of more than US$7,1 billion. The project began in 2008, when both countries signed a treaty for its construction, facing legal and environmental challenges that delayed its implementation for more than a decade.

Another important point is that its construction involves a large amount of materials, so much so that the construction site on the Danish side occupies a vast area, comparable to 373 football fields. The tunnel consists of 79 standard sections and 10 special sections, each weighing around 73 thousand tons and measuring 217 meters long by 42 meters wide and 10 meters high.

These sections are being manufactured on dry land, transported by barge to the installation site and then submerged and sealed on the seabed at depths of 40 meters.

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Marco
Marco
24/10/2024 18:15

The largest underwater tunnel on the planet, with 75 km, more than 45 of which are below the sea line, is the EUROTUNEL, WHICH IS CELEBRATING 30 YEARS...

Valdemar Medeiros

Journalist in training, specialist in creating content with a focus on SEO actions. Writes about the Automotive Industry, Renewable Energy and Science and Technology

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