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M4 eastbound entry slip road closure between J43 and J42, 28 Sep 2026

Planned

This roadworks closure on the M4 is planned to start at 20:00 on Mon 28 Sep and expected to clear at 06:00 on Tue 29 Sep.

Last updated by Traffic Wales at 11:51 on Saturday 26 September 2026.

Closure details and map

Status
Planned
Closure type
Entry slip road closure
Category
Clearance Work
Road
M4
Direction
Eastbound
Junctions
J43 to J42
Location
J43 Llandarcy to J42 Earlswood
Working hours
20:00 to 06:00 overnight
Planned start
20:00 on Monday 28 September 2026
Expected to clear
06:00 on Tuesday 29 September 2026
Details
Clearance work, entry slip roads closed, diversion
Source
Traffic Wales
Last updated by the source
11:51 on Saturday 26 September 2026

Map of the M4 eastbound entry slip road closure between J43 and J42

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  • Planned

Other M4 closures and crash records

7 other closures are in force on the M4 right now, and 52 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