Publishing and copyright information

The BSI copyright notice displayed in this document indicates when the document was last issued

The following BSI references relate to the work on this standard: Committee reference B/201

Draft for comment 05/30144001 DC

Publication history

First published, March 1966

Second edition, December 1973

Third edition, January 1992

Fourth edition, April 2006

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 17 and a back cover.

Foreword

Publishing information

This British Standard was published by BSI and came into effect on 28 April 2006. It was prepared by Technical Committee B/201, Fences and gates. A list of organizations represented on this committee can be obtained on request to its secretary.

Supersession

This British Standard supersedes BS 4008:1991, which is withdrawn.

Information about this document

This revision updates the standard in line with changes to other standards and legislation and clarifies some aspects of the standard.

The factors to be considered before it is decided to use a cattle grid for the containment of animals are so diverse and the variations available so numerous that this document specifies only the fundamental requirements for a cattle grid and contains advice on associated topics in Annex A. The associated fencing and alternative access are essential to the successful operation of a cattle grid but requirements will vary with location, frequency of use and stock to be contained and recommendations are contained in the Annex.

Maintenance is a vital factor in the success of a cattle grid and some advice is given.

If the incentive for escape is great enough, escapes and attempted escapes will occur. The requirements of this document are aimed at limiting both the occurrence and consequences of escape or attempted escape.

Presentational conventions

The provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.

Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.

Contractual and legal considerations

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

1 Scope

This British Standard specifies requirements for cattle grids suitable for the containment of stock whilst permitting the passage of pneumatic tyred vehicles. This standard covers grids suitable for containment of cattle, sheep, deer, goats and pigs; and in certain circumstances, suitable for the containment of horses. Annex A gives recommendations on the use, location, design, construction and maintenance of cattle grids.

2 Normative references

3 Terms and definitions

4 Animal welfare

4.1 General

4.2 Small animal ramps

5 Siting

5.1 General

5.2 Gradients

5.3 Visibility

6 Materials

6.1 General

6.2 Safety

6.3 Toxicity

6.4 Concrete

6.5 Masonry

6.6 Aluminium

6.7 Steel

6.8 Timber

7 Geometry

7.1 Relationship to road profile

7.2 Pit length (distance between end walls)

7.3 Pit width (distance between side walls)

7.4 Pit depth (distance from top surface of transverse members to the pit base)

7.5 Spacing of transverse members

7.6 Distance between supports/stiffeners

8 Design

8.1 General

8.2 Loadings

8.3 Deflections

8.4 Transverse members

8.5 Supports and longitudinal stiffeners to transverse members

8.6 Approach aprons

8.7 Drainage

8.8 Warning notices and signs

8.9 Guard fences

8.10 By-pass facilities

9 Highways

BS 4008:2006

Specification for cattle grids

Current

Published:

28 Apr 2006