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[ v t e ] Okaihau Branch
Legend
km00 Opua Branch Otiria Okaihau Branch 5.00 Kawiti 7.00 Cameron's Crossing 10.00 Ngapipito 17.00 Rakautao 22.00 Ngapuhi 26.00 Kaikohe 35.00 Lake Omapere Road Crossing 40.00 Okaihau 61.24 Rangiahua 61.29 end of track

The Okaihau Branch, sometimes known as the Kaikohe Branch and rarely the Rangiahua Branch, was a branch line railway that joined the North Auckland Line of the national rail network of New Zealand at Otiria. It was the most northerly line in New Zealand and was intended to run all the way to Kaitaia. It opened to Okaihau in 1923 and closed in 1987.

Construction

Proposals for a railway line to Kaitaia and the Far North existed as early as the 1870s, but it was not until 1909 that preliminary surveys were conducted. After the North Auckland Line was linked to and extended over the Opua Branch in 1911, construction progressed in earnest from Otiria towards Kaikohe: initial work had been undertaken in 1910. On 1 May 1914, this section opened. A small amount of further construction took place over the next two years, but World War I meant that no work took place between 1916 and 1919. The resumption of work led to the completion of the line to Okaihau on 29 October 1923.

Debate raged over what route to follow to Kaitaia. The proposal was to run from Okaihau to Rangiahua, near the Hokianga Harbour, and then either through the Maungataniwha Range, about 30 kilometres long with two tunnels; or skirting the range, roughly ten kilometres longer with no tunnels. A 1921 commission did not support work beyond Okaihau, but a compromise in 1923 established Rangiahua as the northern terminus and the Public Works Department continued to build northwards, albeit slowly.

The Great Depression proved catastrophic for the fortunes of the line beyond Okaihau, with construction abandoned in the early 1930s. The Rangiahua section was essentially complete: the line wound downhill to the settlement and a station yard complete with platform was built, though the station building itself was not erected. In 1936, a change in government led to a review of the work beyond Okaihau and the decision was made not to extend the line to Kaitaia. The steep route to Rangiahua was not seen as being particularly useful and had been plagued by slips. The line was accordingly terminated in Okaihau, which was on the main State Highway north (SH1). During World War II the abandoned trackage was salvaged for use elsewhere.

Stations

The following stations were on the Okaihau Branch, with the distance from Otiria in brackets. The extension to Rangiahua is not included, as it never saw regular service.

Otiria to Kaikohe (Opened 1 May 1914)

• Kawiti (5 km)


• Cameron's Crossing (7 km)


• Ngapipito (10 km)


• Rakautao (17 km)


• Ngapuhi (22 km)


• Kaikohe (26 km)

Kaikohe to Okaihau (Opened 29 October 1923)

• 
  Lake Omapere Road Crossing (35 km)


• Okaihau (40 km)


• A ballast pit was located near Kawiti.


• Engine sheds were located at Kaikohe (closed 1930) and Okaihau

Operation

Although Kaikohe has become established as the service centre of the Far North, it failed to generate much rail traffic in the early years of the line. During the first ten months of existence, just 1,500 tons of inbound freight was carried, with roughly half that carried outbound; the decline continued to the point that in 1918 Kaikohe lost its stationmaster. Minimal services were offered, and although losses increased up to 1930, fortunes had somewhat improved by 1940, and by 1950 there was sufficient traffic to justify six trains each way a week. Two carried solely freight, while four were mixed trains, also carrying passengers. Full complements of staff were employed at Kaikohe and Okaihau, where a locomotive depot was located.

Folk singer Peter Cape wrote and sang his song The Okaihau Express in the 1950s about the Okaihau train, which consisted of a steam engine, a carriage and a guards van.^[1]

When railcars were introduced on services north of Auckland in November 1956, they ran all the way to Okaihau.

Previously, a carriage train known as the Northland Express (or the Opua Express) had run from Auckland to Opua with connections to Okaihau via the mixed trains, but with the change of the northern terminus to Okaihau, the branch increased in importance. This proved to be short-lived; in July 1967 the very popular railcar service was withdrawn due to mechanical problems plaguing the railcars. Passengers had to use the mixed trains, with significantly older rolling stock on a slower schedule, and demand slipped. The branch closed to passengers on 21 June 1976.

In 1977, a relaxation of road transport laws led to a decline in freight traffic on the line and forestry proposals that would have required a railway service failed to eventuate. Scheduled trains were cancelled on 12 August 1983, and for a little over four years the line was shunted when required. The branch closed on 1 November 1987.

The branch today

After the line's closure, the New Zealand Railways Corporation retained ownership over the trackbed in the hopes that forestry proposals would come to fruition, and some rails were still in place during the 1990s. In most places track and bridges have been removed, though evidence of the bridge piles and ballast remain. A loading bank and rails under a loading chute exist in Kaikohe, and in Okaihau, the flat area of the yard, the tunnel leading to Rangiahua and the platform are very apparent. For much of the line's length, its formation is quite obvious and includes embankments and cuttings. At Rangiahua State Highway 1 is where the rails used to be, with a loading bank to the west and a platform to the east. The corridor is still owned by the Crown.

There is currently a proposal by the Kaikohe Rau Marama Community Trust to convert the trackbed between Okaihau and Kaikohe into a walking and cycling track, much like the Otago Central Rail Trail and the Little River Rail Trail in the South Island. This would be the first step in a plan to establish a rail trail through to the Bay of Islands Vintage Railway in Kawakawa.^[2]

References

Further reading

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