Our experts have built more than 500 km of tunnels throughout our activity. Our experience in large works and infrastructures also includes the construction of all types of tunnels: road, hydraulic, and railway tunnels, underground tunnels, etc.

A tunnel boring machine lets us excavate in a single operation. Over the years, we have participated in projects like the Silvertown tunnel (London), the Espiño tunnel (AVE Madrid-Galicia), the M30 tunnels (Madrid), and the New York subway (US).