Rimutaka Tunnel Rimutaka Tunnel The Rimutaka Tunnel (officially Tunnel 2, Wairarapa Line) is a railway tunnel through New Zealand's Remutaka Range, between Maymorn, near Upper Hutt, and Featherston, on the Wairarapa Line. The tunnel, which was opened to traffic on 3 November 1955, is long. It was the longest tunnel in New Zealand, superseding the Otira Tunnel in the South Island until the completion of the Kaimai Tunnel (8.88 km, 5.55 miles) near Tauranga in 1978. Rimutaka remains the longest tunnel in New Zealand with scheduled passenger trains. The tunnel was built as part of a deviation to replace the costly Rimutaka
Deliktaş Tunnel end of 2011, all construction works were finished. Following the installation of signalization facilities, and completing the test runs with freight trains, the tunnel was put into service in late 2012. The tunnel was drilled by the New Austrian Tunnelling method (NATM). With its length of , the Deliktaş Tunnel is Turkey's longest single track railway tunnel. The tunnel is wide and has a clearance of . It is also the only railway tunnel of the country, which features built-in lighting, ventilation and firefighting facilities. The automated lighting system controls tunnel lights installed at every through motion detectors. According to