M4 : Westbound : J38 Margam

M4 : Westbound : J38 Margam : Cyclic maintenance : Exit slip road closed : 26/10/26-31/10/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 26/10/2026

End Date: 31/10/2026

First Published

23/10/2026 15:36

Reference Number

RNMDA_2026132860

Last Updated

23/10/2026 15:36

Source Agency

Welsh Government

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