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
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