Gracefield Line Rail Infrastructure

This page records the various types of rail fastenings and rail joints that I observed on the closed Gracefield Industrial Line in August 2003. It is not necessarily an exhaustive list of fittings on the Branch.

My reference is the Code Of Special Instructions Railnet Services 1989 issued by the New Zealand Railways Corporation (NZRC). The NZRC is the predecessor of Tranz Rail and NZ Rail.



Rail Fastenings

Click on an image for a full size photo.....

Type N rail clip with a type R ribbed canted bedplate assembly. The two dots on the screwspike indicate that it is 7 inch long and 7/8th inch in diameter for use in treated pinus radiate (TPR).

Note the rail anchors.

Type N rail clip with type N non-ribbed canted bedplate assembly and spring washer.

Rail in this area was rolled in 1952 and is from a North American mill. Elsewhere on the branch the rail is as recent as 1979.

Type N rail clip with a type N non-ribbed canted bedplate assembly. There is no spring washer - they are not used on bridges or where the track will be buried or subject to heavy corrosion.

The "+" on the head of the screwspike indicates that it is 145mm long and 22mm indiameter for use in TPR.

Flat bedplate assembly type F.

Screwspike assembly type S.

This assembly does not require a spring washer.

NZR Spring Clip Assembly type A.

A large spring clip and a steel sleeper. I do not know the designation. Was this part of a trial?

A Vossloh clip. Was it part of a trial?

Pandrol Bedplate Assembly type P on TPR sleeper.

Pandrol Assembly on Concrete Sleeper type P.

Dogspike Assembly type D. This is not on a running rail but on the guard rail of the bridge over the Waiwhetu Stream.






For future use.



Rail Joints

Click on an image for a full size photo.....

Bolted 4-hole joint. There is no expansion gap - is this CWR?

Bolted insulated joint. A tie rail, which adds strength to the joint, is in the background.

A wooden insulated joint. Note the lugs to stop the bolt turning when the nut is tightened.

Benkler Insulated joint.

Welded Joint.






For future use.






For future use.

A large expansion gap in the Gracefield yard.



Standard Assemblies Identification

Click on an image for the complete diagram....

Figure P 71 A - Code Of Special Instructions Railnet Services (1989).

Figure P 71 B - Code Of Special Instructions Railnet Services (1989).


Last Updated: Tuesday, July 26, 2005

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