The S10 Highway through Mühlviertel is one of the most important road construction projects under way in Upper Austria. Contract section 3, Object F16 (Pernau Subsurface Tunnel), is the largest round cross-section implemented with the newly developed Tunnel system DokaCC to date. After 22 pouring sections the forming wagon was repositioned laterally into the 2nd tube and used to produce the additional pouring sections.