Railway electrification in New Zealand Railway electrification in New Zealand Railway electrification was initially adopted by the New Zealand Railways in New Zealand for long tunnels; the Otira Tunnel, the Lyttelton Rail Tunnel and the two Tawa Tunnels of the Tawa Flat Deviation. Electrification of Wellington suburban services started with the Johnsonville Line and Kapiti Line out of Wellington from the 1930s. Auckland suburban services were electrified in 2014–15. Electrification of long distance services on the North Island Main Trunk (NIMT) dates from 1986, although KiwiRail is now considering diesel operation of the NIMT. New long tunnels e.g. the Rimutaka Tunnel and the Kaimai Tunnel
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