Anyone planning a tunnel in mountainous terrain should not view the geological situation as a handicap, but instead as a helper. True to this principle, we plan our mountain tunnels according to the New Austrian Tunnelling Method (NATM).

This internationally recognized method that stands for the greatest possible flexibility as well as cost-efficient and safe results in tunnel construction has accompanied our engineering office since its inception in 1975. Over the years it has been optimized and continually adapted to meet the ever more complex demands.