The Longest Tunnel in the World Is 57.1 Km Long, Reaches 2,450 Meters Deep, Took Almost 17 Years to Complete, and Allows Trains to Travel at 200 Km/H

Written by Fabio Lucas Carvalho

Published on 20/09/2025 at 09:42

Updated on 20/09/2025 at 09:43

Túnel mais longo do mundo: Túnel de São Gotardo tem 57,1 km, 2.450 m de profundidade, 17 anos de construção e trens a 200 km/h.

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Swiss Construction Crosses The Alps With Advanced Technology, Two Parallel Tubes, Reinforced Safety And Transformed Mobility Between The North And South Of Europe.

Modern engineering has transformed the way people and goods move across the European continent. Among skyscrapers, impressive bridges, and viaducts, one project stands out for its grandeur: the Gotthard Base Tunnel in Switzerland. With a length of 57.1 kilometers, it is considered the longest railway tunnel in the world.

A Project That Crosses The Alps

The tunnel crosses the Swiss Alps from end to end. It features two parallel tubes, each with its own railway line, connected by safety passages distributed every 325 meters. In total, the project includes about 152 kilometers of galleries and underground connections.

The construction began in 1999, after years of studies and exploratory drilling. The first major milestone occurred in 2010, when the teams celebrated the meeting of the eastern tube excavations. By 2011, it was the western tube’s turn to be completed.

ARTICLE CONTINUES BELOW

Depth And Extreme Challenges

In some sections, the tunnel is under 2,450 meters of rock, making it the deepest ever built. This condition required advanced technology to cope with pressure, heat, and ventilation. Additionally, thousands of workers participated in the project, which demanded meticulous planning and unprecedented engineering solutions.

Speed And Efficiency In Transport

The Gotthard Base Tunnel allows passenger trains to operate at 200 km/h, with a technical capacity of up to 250 km/h. Meanwhile, freight trains operate at lower speeds, but safety is ensured by modern monitoring and fire protection systems.

The new route has reduced travel time between Zurich and Milan by about one hour, benefiting both tourists and commerce.

The logistical and economic impact is significant, as Switzerland occupies a strategic position in the corridor that links the north to the south of Europe.

More than a record, the Swiss tunnel represents innovation, integration, and efficiency. It demonstrates how engineering can overcome natural barriers and offer mobility solutions that connect countries, economies, and people on a large scale.

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The Longest Tunnel in the World Is 57.1 Km Long, Reaches 2,450 Meters Deep, Took Almost 17 Years to Complete, and Allows Trains to Travel at 200 Km/H

Swiss Construction Crosses The Alps With Advanced Technology, Two Parallel Tubes, Reinforced Safety And Transformed Mobility Between The North And South Of Europe.

A Project That Crosses The Alps

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The Longest Tunnel in the World Is 57.1 Km Long, Reaches 2,450 Meters Deep, Took Almost 17 Years to Complete, and Allows Trains to Travel at 200 Km/H

Swiss Construction Crosses The Alps With Advanced Technology, Two Parallel Tubes, Reinforced Safety And Transformed Mobility Between The North And South Of Europe.

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Depth And Extreme Challenges

Speed And Efficiency In Transport

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After ten days orbiting the Moon, science confirms that the astronauts of the Artemis II mission return with altered bodies.

In the Saudi Arabian desert, the world’s largest green hydrogen plant is 80% complete and will use 4 gigawatts of solar and wind energy to produce 600 tons of clean fuel per day when it opens in 2027.

Brazilian cities shining from space impress in a new image from NASA that reveals São Paulo, Rio, BH, and other urban centers during the historic Artemis II mission, which also captured the Moon like never before.

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