 Passenger trains started running on 10 February 1941 , also with two trains in each direction per day . Travel time was 65 minutes downhill and 80 minutes uphill . The official name of the line was decided by the ministry on 26 June 1941 . From 1 May 1942 , Rolf Aksnes took over as head engineer after Kielland . During construction of the Bergen Line in 1898 , the upper part of Kjosfossen had been built up with a hydroelectric power station . Another power station was built there , and taken into use on 27 October 1944 . Built by Kværner and Norsk Elektrisk & Brown Boveri ( NEBB ) , it had a power output of 1 @,@ 700 kilowatts ( 2 @,@ 300 hp ) . 
