At a planned 58 kilometers (35 miles) in length, the Brenner Base Tunnel (BBT) in Europe will be the longest railway tunnel in the world when completed in 2025.
Keller Group UK, one of the world’s leading engineering firms that works on large turnkey projects in civil and infrastructure around the globe, relied on Drill King International (DKI) to provide it with the tools needed to successfully complete this section of the massive project.
