Standard
CD 525 - Design of combined surface and sub-surface drains and management of stone scatter
This document sets out requirements and provides recommendations on the design of new combined surface and sub-surface drains (also called French drains), and the treatment of existing combined surface and sub-surface drains where used as a road drainage system.
Document details
- Link to document on publisher's website
- CD 525 - Design of combined surface and sub-surface drains and management of stone scatter from National Highways
- Document type
- Standard
- Date published
- March 2020
- Last updated
- March 2020
- Published by
- National Highways
Related content on legislation.gov.uk
Regulatory topics
- Surface and sub-surface drains
- Stone scatter
- Vehicle stranding