When is the Fehmarnbelt Tunnel expected to open?

The Fehmarnbelt Tunnel is expected to open in 2029.

How long is the Fehmarnbelt Tunnel?

The Fehmarnbelt Tunnel will stretch approximately 18 kilometers (about 11 miles) across the Baltic Sea.

What are the safety features of the Fehmarnbelt Tunnel?

Safety features include continuous emergency lanes, surveillance systems, ventilation controls, and emergency exits.

Home / Business and Economy / Underwater Lego Blocks Build 11-Mile Sea Tunnel

Underwater Lego Blocks Build 11-Mile Sea Tunnel

6 Mar

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Summary

An 18km immersed tunnel connects Denmark and Germany beneath the Baltic Sea.
The project utilizes giant, prefabricated concrete sections assembled underwater.
Expected to open in 2029, reducing travel times significantly between countries.

Underwater Lego Blocks Build 11-Mile Sea Tunnel

A groundbreaking immersed tunnel, set to become one of the world's longest, is nearing completion beneath the Baltic Sea. This 18-kilometer structure will directly link the Danish island of Lolland with the German island of Fehmarn, significantly transforming travel between the two nations.

The Fehmarnbelt Tunnel, anticipated to open in 2029, is being constructed using massive, prefabricated concrete elements. These colossal sections, each weighing up to 73,500 tons, are towed into position and carefully assembled in a prepared seabed trench. This innovative immersed tunnel technique avoids disrupting busy maritime shipping lanes above.