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
Dinmore Tunnel Dinmore Tunnel Dinmore Tunnel is the name given to two railway tunnels located on the former Shrewsbury and Hereford Railway (S&HR) line between Hereford station and Leominster station. The first tunnel (currently the 'up' tunnel) was built in 1853, with the second tunnel (the 'down' tunnel) being added in 1891. Both are still in use and are jointly the 15th longest tunnels on the former Great Western Railway. To the south of the tunnel was Dinmore railway station, which closed in 1958. They are located just south to the village of Hope Under Dinmore and tunnels under Queen's Wood Country