Tunnel

The inner structure of the Brenner Base Tunnel under construction with high-tech glassmorphism overlay panels and neon cyan styling elements

Brenner Base Tunnel under the Alps – Technical Parameters and Construction Schedule

3 June 2026 5 min

Norway Rogfast world deepest subsea tunnel E39

Engineering Breakthrough: Norway’s Rogfast Is the World’s Longest and Deepest Undersea Tunnel

5 December 2025 4 min

Brenner Base Tunnel completion record milestone

“Historic Day”: Workers Complete Excavation of the World’s Longest Underground Railway

20 September 2025 4 min