Maymorn southern portal of the Rimutaka railway tunnel, which opened in 1955 and replaced the Rimutaka Incline railway line which ran over the Rimutaka Range. The old route passes within 40 metres over the tunnel's exit. Maymorn Maymorn is a rural area of Upper Hutt city in the Wellington region of New Zealand consisting of Rural Hill and Rural Valley Floor zones. For statistical purposes, Maymorn is counted as part of Te Marua in the New Zealand census. The usual resident 2013 population of the Te Marua area was 1,152. The area is a tranquil setting consists of lifestyle blocks and
Rimutaka Tunnel tunnel on 1 February 1955, which also included approach formations and bridge piers, at which time track laying commenced. By October 1955 the signalling and centralised traffic control equipment had been installed and all the track was laid, except for a short section near Upper Hutt where the old line crossed the new line at a higher level. All traffic on the Upper Hutt to Featherston section was suspended after the arrival of the Carterton Show Day excursion train at Upper Hutt on the evening of Saturday 29 October. Over the next three days the old formation was removed, the