Rimutaka Tunnel Rimutaka Tunnel The Rimutaka Tunnel (officially Tunnel 2, Wairarapa Line) is a railway tunnel through New Zealand's Remutaka Range, between Maymorn, near Upper Hutt, and Featherston, on the Wairarapa Line. The tunnel, which was opened to traffic on 3 November 1955, is long. It was the longest tunnel in New Zealand, superseding the Otira Tunnel in the South Island until the completion of the Kaimai Tunnel (8.88 km, 5.55 miles) near Tauranga in 1978. Rimutaka remains the longest tunnel in New Zealand with scheduled passenger trains. The tunnel was built as part of a deviation to replace the costly Rimutaka
Railway preservation in New Zealand over an existing historic formation abandoned in 1955. This is the route of the former Rimutaka railway and Rimutaka Incline over a distance of some 20 km, including 5 km of the 1 in 15 incline worked by the Fell centre-rail system. Although the Taieri Gorge Railway in Dunedin is a much longer and successful heritage railway at 60 km length, it has the advantage that all its track was still in place when it was set up in 1990. The Rimutaka proposal faces many obstacles from the construction of new track and formation rehabilitation works, to the building of