Oslofjord Tunnel (Norwegian: Oslofjordtunnelen) is a subsea road tunnel under the Oslofjord, Norway, connecting Hurum, Buskerud in the west to Frogn, Akershus in the east. The Oslofjord Tunnel is one of the longest undersea tunnels of its kind in Northern Europe; it is 7.2 km long and reaches a depth of 134 metres below sea level, with a maximum gradient of 7%. The tunnel was opened by King Harald V
Link to this comment:
All Comments (1)