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M4 westbound entry slip road closure at J17, 1 Oct 2026

Planned

This roadworks closure on the M4 is planned to start at 09:30 on Thu 1 Oct and expected to clear at 15:30 on Thu 1 Oct.

Last updated by National Highways at 06:01 on Monday 28 September 2026.

Closure details and map

Status
Planned
Closure type
Entry slip road closure
Category
Authority Operation
Road
M4
Direction
Westbound
Junctions
J17
Location
M4 J17 westbound access
Planned start
09:30 on Thursday 1 October 2026
Expected to clear
15:30 on Thursday 1 October 2026
Details
M4 westbound Jct 17 entry slip lane 2 closure
Source
National Highways
Last updated by the source
06:01 on Monday 28 September 2026

Map of the M4 westbound entry slip road closure at J17

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  • Planned

Other M4 closures and crash records

5 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