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M4 eastbound slip road closure at J4B, 29 Sep 2026

Cleared

This roadworks closure on the M4 has cleared. It started at 22:00 on Tue 29 Sep and cleared at 05:30 on Wed 30 Sep.

Last updated by National Highways at 04:58 on Thursday 1 October 2026.

Closure details and map

Status
Cleared
Closure type
Slip road closure
Category
Road Maintenance
Road
M4
Direction
Eastbound
Junctions
J4B
Location
link road from M4 J4B eastbound to M25 J15
Started
22:00 on Tuesday 29 September 2026
Cleared
05:30 on Wednesday 30 September 2026
Details
M4 Eastbound Jct 4B to M25 Clockwise and Anti-clockwise Jct 15 link road closure
Source
National Highways
Last updated by the source
04:58 on Thursday 1 October 2026

Map of the M4 eastbound slip road closure at J4B

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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