The first from Bergen to Takvam represented a very roundabout way, and it was clear that it would be possible to reduce the line by with the construction of three tunnels, Ulriken Tunnel (), Arnanipa Tunnel () and Tunestveit Tunnel (). The idea was approved by parliament in 1956, based on private financing from the businessman Fritz Rieber. Construction started in 1959 with the tunnels being finished in 1963 while the tracks were finished being laid on 29 May 1964 when the first train entered the tunnel.