Standard
CM 430 - Maintenance of road tunnels
This document describes procedures for the safe and effective maintenance of tunnels on the motorway and all-purpose trunk road network.
Document details
- Link to document on publisher's website
- CM 430 - Maintenance of road tunnels 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
- Highways design
- Design requirements
- Road tunnels
- Maintenance
- Cleaning
- Inspections
- Ventilation
- Lighting
- Drainage
- Fire safety
- Emergency planning