scope:

This module applies to all the functions that contribute to any phase of the drainage life cycle (for example asset management, maintenance, design, installation, inspection, etc.).

The capital investment intervention options described in this document are defined by the following standard jobs:

Drainage Asset Refurbish (standard job 009623)

Drainage Asset Renew (standard job 009622)

Drainage Asset New-Build (standard job 009624).

• For life cycle activities, this document is to be read with the following documents:
• NR/L2/CIV/005/04, Drainage Inspections
• NR/L2/CIV/005/05, Design Survey
• NR/L2/CIV/005/08, Drainage Assessment
• NR/L2/CIV/005/09, Drainage Design
• NR/L2/CIV/005/10, Drainage Installation 
• NR/L2/CIV/005/11, Drainage Maintenance

Purpose

This module helps mitigate the risk of drainage system failure by describing the intervention options that can be considered for determining the life cycle activities required of the railway drainage systems.

This module forms part of the Drainage CIV/005 manual as shown in the process map in NR/L2/CIV/005, Drainage System Manual.