6 km railway tunnel from Stuttgart central railway station to Bad Cannstatt as part of the large-scale project „Stuttgart 21“.
During the construction of the Vienna underground line 2 extensive dewatering works with approx. 270 wells and approx. six million pumping hours were required. An electronic monitoring and control system made the measure safe.
While investigating on the trail of the beginnings of the universe – in the nuclear research centre CERN the quarks go to the racecourse. The tunnels and caverns for the biggest machine in the world were built by Wayss & Freytag Ingenieurbau.