Northern Section of the Sedrun MFS Station in the Gotthard Base Tunnel. Image Source: Bilfinger-Berger 28 February 2013 By Michele Petrello Etter Northern Section of the Sedrun MFS Station in the Gotthard Base Tunnel before the interior fittings were installed in the Northern most section. (c) 2010 Frank Schultze / Zeitenspiegel Image Source: Bilfinger Berger