Sertus Image Sagl

17/06/2026

How do you build a 57 km tunnel through the Alps? 🇨🇭⛰️

The Gotthard Base Tunnel stretches 57 km beneath the Alps, making it the world's longest railway tunnel. Its construction required nearly two decades of planning and ex*****on, mobilising major financial, technical and human resources.

Workers faced challenging geological conditions deep underground, where temperatures reached around 28°C and humidity levels approached 80%. At peak construction, more than 2,000 people were working simultaneously on the project.

The tunnel consists of two parallel tubes connected every 325 metres, ensuring safety, reliability and efficient operations.

Today, the Gotthard Base Tunnel is regarded as one of Europe's most significant engineering achievements and continues to influence infrastructure projects around the world.

12/06/2026

Why is the Gotthard tunnel so important for Europe? 🇨🇭🚆

The Gotthard Base Tunnel is part of one of Europe’s main transport corridors, linking Northern and Southern Europe across the Alps.

Built at low altitude beneath the mountains, the tunnel allows trains to operate more efficiently by avoiding steep gradients and sharp curves. This improves reliability while reducing energy consumption for both freight and passenger transport.

The infrastructure also plays a central role in Switzerland’s strategy to shift freight from road to rail, helping reduce truck traffic while supporting more sustainable logistics across Europe.

Today, the Gotthard Base Tunnel has become a key element of European connectivity and cross-border mobility.

12/06/2026

Why Switzerland keeps crossing the Alps 🇨🇭🏔️

Switzerland lies at the crossroads of Europe, yet much of its territory is covered by mountains. For centuries, the Alps have been both a natural barrier and a strategic passage connecting northern and southern Europe.

Long before modern tunnels, routes such as the Gotthard Pass played a central role in trade and travel across the continent. In 1882, the first Gotthard railway tunnel transformed mobility by allowing trains to pass through the Alps rather than over them, making transport faster, safer and more reliable.

Today, projects such as the 57-kilometre Gotthard Base Tunnel continue this long history of connectivity. From mountain passes to world-record rail tunnels, the objective remains unchanged: connecting Europe across the Alps.

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Nuovo sottopasso Lugano-Besso
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