scope:

This document applies to the following groups of structures assets:

 • Bridges;

 • Culverts;

 • Retaining Walls;

 • Ancillary Structures.

This document does not apply to the following asset groups;

 • Coastal, Estuarine and River Defences (CERDs);

 • Minor Retaining Walls;

 • Tunnels;

 • Undertrack crossings;

 • Reservoirs.

This document applies to structures owned, and/or managed by Network Rail.

Purpose

This document establishes the requirements for describing and scoring structure defects to provide a structured consistent method of recording data against each structure.

The purpose of the standardised recording of defects is to:

1. Accurately record and list all defects on a structure

2. Record, in objective terms, the visible condition of each element, and

3. Set standard for detection of defects during examinations and enable the use of alternative methods of data collection.

This module mitigates the risk of inconsistent reporting and understanding of the condition of Network Rail's structures asset stock. Failure to implement this correctly could lead to a loss of reputation with the ORR (Office of Road and Rail) and failure to secure the correct funding for the maintenance of structures thus leading to functional failures of structures.