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NR/L2/TRK/029

Wood Sleepers, Bearers and Longitudinal Timbers

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Organization: NR
Publication Date: 5 September 2015
Status: active
Page Count: 28
scope:

This specification applies to the supply of new hardwood and softwood timber for use as:

  •  sleepers for plain line;
  •  bearers in switch and crossing layouts;
  •  longitudinal timbers for bridges and pit roads.

The scope of this standard includes the minimum requirements for quality control and inspection prior to delivery and installation. It also specifies accepted methods of preservation and finishing. The scope excludes:

  •  fence posts;
  •  timber for use in buildings (commercial and operational);
  •  timber elements in structures other than longitudinal timbers.

This specification shall be complied with by all personnel who are responsible for supplying, purchasing, constructing, renewing or maintaining Network Rail's permanent way infrastructure.

Purpose

The purpose of this product specification is to define Network Rail's requirements for the supply of wood sleepers, wood bearers and longitudinal timbers.

Timber is a natural product and therefore subject to variations of colour, density, shape and consistency. The purpose of this specification is to promote the economically, environmentally and socially sustainable use of timber in supporting and distributing the loads of rail traffic.

Document History

NR/L2/TRK/029
September 5, 2015
Wood Sleepers, Bearers and Longitudinal Timbers
This specification applies to the supply of new hardwood and softwood timber for use as:  sleepers for plain line;  bearers in switch and crossing layouts;  longitudinal timbers for bridges and...
December 1, 2005
Wood Sleepers, Bearers & Longitudinal Timbers (aka NR/SP/TRK/029)
This specification applies to the supply of new hardwood and softwood timber for use as sleepers for plain line; bearers in switch & crossing layouts, and longitudinal timbers for bridges and pit...
February 1, 2000
Wood Sleepers & Bearers & Longitudinal Timbers (aka NR/SP/TRK/029)
This specification applies to the supply of new hardwood and softwood timber for use as • sleepers for plain line; • bearers in switch & crossing layouts, and • longitudinal timbers for bridges...
October 1, 1999
Hardwood Sleepers, Bearers & Longitudinal Timbers (aka NR/SP/TRK/029)
This specification applies to the supply of new hardwood timber for use as sleepers for plain line, bearers in switch & crossing layouts, and longitudinal timbers for bridges and pit roads. PURPOSE...
April 1, 1998
Hardwood Sleepers, Bearers & Longitudinal Timbers (aka NR/SP/TRK/029)
This specification applies to the supply of new hardwood timber for use as sleepers for plain line, bearers in switch & crossing layouts, and longitudinal timbers for bridges and pit roads. PURPOSE...

References

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