Best Under Construction
The Brenner Base Tunnel is a cross-border railway project running beneath the Alps between the Innsbruck area in Austria and Fortezza in Italy. Its principal tunnel system is about 55 km long, while inclusion of the existing Innsbruck bypass creates a continuous underground rail route of roughly 64...
The Lyon-Turin Base Tunnel is a rail tunnel under construction beneath the Alps, connecting Saint-Jean-de-Maurienne in France with Susa in Italy. With a main bore of approximately 57 kilometers, it is designed as a key component of the Lyon–Turin rail corridor and the broader Trans-European Transpor...
The Pajares Base Tunnel is a major high-speed railway tunnel currently under construction beneath the Cantabrian Mountains in northern Spain. It forms a crucial part of the Madrid-to-Asturias high-speed rail corridor, specifically designed to bypass the steep and challenging gradients of the histori...
A railway tunnel under construction in Stuttgart, Germany, forming a key segment of the Stuttgart 21 project linking the redeveloped main station to Stuttgart Airport.
