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| Rimutaka Incline | |
|---|---|
| Name | Rimutaka Incline |
| Locale | Wellington Region, New Zealand |
| Line | Wairarapa Line |
| Open | 1878 |
| Close | 1955 |
| Owner | New Zealand Government |
| Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
| Length | 8.8 km |
Rimutaka Incline The Rimutaka Incline was a steep, historic railway section on the Wairarapa Line in the North Island, linking Upper Hutt and Masterton by crossing the Remutaka (formerly Rimutaka) peaks. The incline used the Fell system of centre rail traction and became a defining feature of New Zealand Railways Department operations in the late 19th and early 20th centuries. It influenced engineering practice in the British Empire and attracted international attention from railway engineers in Australia, Japan, and India.
Construction began under colonial administration during the premiership of Harry Atkinson and the tenure of John Davies Ormond as Superintendent of Hawke's Bay provincial interests, connecting settlements such as Featherston, Cross Creek, and Waihenga to the port at Wellington Harbour. The incline opened amid debates in the New Zealand Parliament and disputes involving the Public Works Department and contractors from Nelson and Dunedin. Early operation was shaped by policies of the New Zealand Railways Department and leadership of chief engineers influenced by practices in Great Britain, including correspondence with the Board of Trade and engineers from Isle of Wight railways. The route played a strategic role during troop movements in the Second Boer War and later in logistics for the First World War and Second World War.
Design drew on proposals by John Barraclough Fell and initial surveys by Charles H. Hursthouse and staff from the Public Works Department. Construction confronted rugged terrain, requiring cuttings, tunnels and viaducts managed by contractors linked to firms in Christchurch, Auckland, and Nelson. The decision to adopt the Fell centre rail proximal traction was influenced by experiences on the Mont Cenis Railway and the Rigi railways in Switzerland, and by consultations with engineers from Isle of Man and Jamaica. Materials arrived via Wellington Harbour and were delivered along rudimentary roads constructed by teams associated with Robert Stout and shipping firms from Lyttelton.
The centre rail provided additional braking and traction using specialised brake vans and locomotives designed to press gripping brake shoes against a raised rail, a method pioneered by John Barraclough Fell and used on inclines such as the Ffestiniog Railway and Mont Cenis Pass Railway. Operational protocols were outlined in manuals by the New Zealand Railways Department and trained by staff seconded from Great Britain and Australia. Traffic control on the incline interacted with signalling standards influenced by the UK Board of Trade and local adaptations by Hutt Valley supervisors. The system required strict maintenance routines resembling practices at Darjeeling Himalayan Railway workshops and used telegraph links akin to those employed by Victorian Railways.
Locomotives included the unique H-class Fell engines built for centre-rail operation and brake vans modified by Addington Workshops and Petone Workshops. Rolling stock comprised timber-bodied carriages and wagons from suppliers in Dunedin and Auckland, and refrigerated vans later repurposed from lines serving Napier and Gisborne. Equipment such as rail chairs, sleepers, and special brake blocks were sourced from foundries in Glasgow and factories in Manchester and adapted by engineers trained under the Institution of Civil Engineers. Maintenance drew on techniques similar to North British Locomotive Company practice and spare parts catalogues used by Victorian Railways.
The incline experienced derailments, runaway wagons, and brake failures that prompted investigations by inspectors associated with the New Zealand Railways Department and occasional reviews by the Department of Labour. Notable incidents influenced safety reforms paralleling those after accidents on the Settle–Carlisle line and the Rimutaka Tunnel-era planning. Responses involved coronial inquests and policy changes advocated by members of Parliament from Wairarapa and Hutt Valley electorates, and technical reviews by visiting engineers from Australia and Britain.
Declining viability, increasing traffic demands, and comparisons with alternatives such as the Rimutaka Tunnel project prompted studies by the New Zealand Railways Department and recommendations supported by ministers including Peter Fraser and later transport officials. The incline closed when the Rimutaka Tunnel and new deviations opened, part of wider mid-20th-century improvements in the Wairarapa Line tied to postwar reconstruction and national transport policy debated in the New Zealand House of Representatives.
Remnants survive as part of heritage initiatives by groups including the Rimutaka Incline Railway Heritage Trust and local historical societies in Featherston and Upper Hutt. Conservation efforts involve volunteers, workshops at Maymorn and displays in museums such as the Wairarapa Museum and Museum of Transport and Technology. The incline influenced heritage railway movements in New Zealand and inspired preservation projects analogous to the Ffestiniog Railway restoration and volunteer-driven efforts at Puffing Billy Railway.
The alignment traversed steep gradients, sharp curves and terrain features such as Pakowhai and the Remutaka Range, linking rural localities including Maymorn and Cross Creek and passing through bush remnants of the Wellington region. The topography required drainage, retaining walls and cuttings similar to those on the Central Otago lines, and the corridor now forms part of walking tracks and heritage precincts managed by regional councils and trusts in the Wairarapa and Hutt Valley areas.
Category:Railway lines in New Zealand Category:Heritage railways in New Zealand