Kaimai Tunnel Kaimai Tunnel The Kaimai Tunnel is a railway tunnel through the Kaimai Range in the North Island of New Zealand. Since it was opened in 1978, it has held the title of longest tunnel, at 8.879 kilometres, in New Zealand, assuming this distinction from the previous title holder, the Rimutaka Tunnel. It is part of the Kaimai Deviation, which was constructed to bypass the old route of the East Coast Main Trunk Railway through the Karangahake Gorge (part of which has been preserved as the Goldfields Railway). The Kaimai Deviation is a 24 km line between Waharoa and Apata, including
Tauern Railway Tunnel Tauern Railway Tunnel The Tauern Railway Tunnel () in Austria is the longest tunnel of the Tauern Railway crossing the main chain of the Alps. Currently, it has a length of . The highest point of the tunnel, which is also the highest point in all of the railway line, is at above sea level. The tunnel's north entrance is at Böckstein in the valley of Bad Gastein in the state of Salzburg, the south entrance near Mallnitz in Carinthia. Plans for constructing an interconnection railway line between the terminus of the Austrian Western Railway at the city of Salzburg