22 August 1999. The entire process was further complicated by conflicts between NSB Gardermobanen and the Scandinavian Rock Group. Retrospective surveys showed a lack of control and reporting procedures during the incidents, which should have been addressed in 1995, but were never taken seriously. Compensation was paid for approximately 60 houses which were damaged as a result of tunnel construction. An evaluation by the Ministry of Transport and Communications showed that NOK 500 million was spent fixing the leaks, but the report claimed that this was to a large extent a waste of money, resulting from inefficient engineering procedures. The same report criticized the planning and organization of the construction of the entire railway. In total the extraordinary additional costs for the tunnel totaled NOK 1.3 billion. Delay When the new airport opened on 8 October 1998 the Flytoget airport express trains started operating immediately, as did the Gardermoen Line from Lillestrøm to the airport and onwards to Eidsvoll. Because the tunnel was not finished, trains were required to use the old Trunk Line from Oslo Central Station to Lillestrøm. After this diversion the express trains switched to the completed section of the new Gardermoen Line between Lillestrøm and Oslo Airport. Regular operations using the Romerike Tunnel started on 22 August 1999. See also Hallandsås Tunnel List of longest tunnels References Railway tunnels in Oslo Railway tunnels in Viken Tunnels on the Gardermoen Line Flytoget 1999 establishments in Norway Tunnels completed in 1999