Rimutaka Tunnel The first shot was fired in 1948 when the Public Works Department started the tunnel with bores of at the western end and at the eastern end. A contract for completing the tunnel was let to a consortium of Morrison Knudsen Inc. and Downer and Company on 7 May 1951. The work commenced at the west end in July 1951 and at the east end in August. The contract was expected to be completed in four years, but the headings met on 20 April 1954 with the concrete lining finished a month later. New Zealand Railways took possession of the
Koralm Tunnel of the tunnel is included in the plans. Koralm Tunnel The Koralm Tunnel is a railway tunnel that is under construction in Austria under the Koralpe mountain range. It is expected to be operational by 2022. The tunnel will be long, which will make it Austria's longest railway tunnel. Running at depths of up to below ground, the tunnel will be a part of the -long Koralm Railway which will link Graz with Klagenfurt. The Koralm tunnel will be composed of two tunnels running in parallel, each capable of carrying a single railway track, which will be linked together every