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CrashStats

M4 westbound lane closure between J21 and J22, 20 Jun 2026

Cleared

This incident on the M4 has cleared. It started at 16:17 on Sat 20 Jun and cleared at 16:22 on Sat 20 Jun.

Last updated by National Highways at 16:22 on Saturday 20 June 2026.

Closure details and map

Status
Cleared
Closure type
Lane closure
Category
Incident
Road
M4
Direction
Westbound
Junctions
J21 to J22
Location
M4 westbound between J21 and J22
Started
16:17 on Saturday 20 June 2026
Cleared
16:22 on Saturday 20 June 2026
Source
National Highways
Last updated by the source
16:22 on Saturday 20 June 2026

Map of the M4 westbound lane closure between J21 and J22

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  • Cleared

Other M4 closures and crash records

7 other closures are in force on the M4 right now, and 58 more are planned in the next 7 days.

The M4 accident statistics from 1979 to 2025 record 29,200 collisions on the road, 724 of them fatal.

All M4 closures