A21 road closures & live traffic incidents
No live closures are reported on the A21 right now.
Live A21 updates from National Highways and Traffic Wales: incident closures, roadworks in force, planned closures for the week ahead and recently cleared disruption.
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details
A21 closures planned this week
A21 southbound lane 2 closure ( 29/5a to 30/4a)
Planned Roadworks National Highways
Dunton Green
A21 · A21 Southbound Between A25 And A225
Starts in 2 minutes 59 seconds
Starts 3 Aug 2026, 19:00
Expected clear 4 Aug 2026, 04:00
A21 southbound lane 2 closure ( 29/5a to 30/4a)
Category: Road Maintenance
View update