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
Yimbun Railway Tunnel ceased. The Yimbun Railway Tunnel, constructed in 1910 on the section between Yimbun and Blackbutt, is the only tunnel constructed along the entire Brisbane Valley Branch Line and one of only three remaining intact major rail structures on the Brisbane Valley Rail Line, the others being the Lockyer Creek Railway Bridge at Clarendon and the Harlin Rail Bridge. Of the 55 railway tunnels constructed in Queensland between 1865 and 1931, only nine are recorded as located on branch lines. The place is important in demonstrating the principal characteristics of a particular class of cultural places. The Yimbun Railway Tunnel is