Tunsberg Tunnel

The Tunsberg Tunnel (Tunsbergtunnelen) is a road tunnel in Voss Municipality in Vestland county, Norway. The 4080 m long tunnel was built from 2009 until 2011 to replace a stretch of Norwegian National Road 13 just west of Seim. That stretch of roadway was full of narrow, tight hairpin turns. The tunnel has no turns and has a maximum grade of 5.07%. It was officially opened on 20 December 2011 by Magnhild Meltveit Kleppa, the Minister of Transport and Communications at that time.