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M4 eastbound lane closure between J20 and J19, 23 Sep 2026

Cleared

This roadworks closure on the M4 has cleared. It started at 21:44 on Wed 23 Sep and cleared at 03:15 on Thu 24 Sep.

Last updated by National Highways at 13:19 on Sunday 27 September 2026.

Closure details and map

Status
Cleared
Closure type
Lane closure
Category
Road Maintenance
Road
M4
Direction
Eastbound
Junctions
J20 to J19
Location
M4 eastbound between J20 and J19
Lanes
2 of 4 lanes closed
Started
21:44 on Wednesday 23 September 2026
Cleared
03:15 on Thursday 24 September 2026
Details
M4 eastbound Jct 20 to Jct 19 lane 3&2 closure (184/1 to 183/1)
Source
National Highways
Last updated by the source
13:19 on Sunday 27 September 2026

Map of the M4 eastbound lane closure between J20 and J19

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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