Carriageway closures
M25 Clockwise, Jct 19 to Jct 21a carriageway closure
Road Network: M25 (Clockwise)
Affected Sectors:
- Sector 1: M25 clockwise between J19 and J20
Status & Certainty: Scheduled Maintenance (Probable)
Restrictions: Mandatory compliance required.
Carriageway & Lane Capacity
- Total Closed Lanes: 5
- Lanes Remaining Open: 0
Schedule Window
- Scheduled Start: 09/09/2026 at 22:00
- Estimated Completion: 10/09/2026 at 05:30
- Schedule data last synced/updated by National Highways on: 05/09/2026 at 04:38