A9 Pyhrn motorway Tunnel Chain Schön-Lainberg North, Austria For a length of 13.5 km the new construction of the A9 motorway is planned with two-way traffic. Due to the topographical conditions six tunnels have to be driven in, with lengths up to 2.8 km. Furthermore twelve bridge objects, partly very demanding in their construction, are built for passing the valleys, additional short tunnels in cut & cover method as well as the earthwork and road construction works required and the total electrical equipment for the route are included in the services. Services: Site supervision