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
Dularcha Railway Tunnel with the gazettal of the Dularcha National Park in 1922. The boundaries of the Park were created around the railway line enabling steam train travelling passengers to view a part of Queensland's forests. The place demonstrates rare, uncommon or endangered aspects of Queensland's cultural heritage. The Dularcha Railway Tunnel is significant as one of only two tunnels constructed along the entire North Coast Line and is good example of a concrete lined tunnel constructed for Queensland's narrow-gauge railway lines. The place is important in demonstrating the principal characteristics of a particular class of cultural places. The Dularcha Railway Tunnel is