M4 : Westbound : J38 Margam to J42 Earlswood

M4 : Westbound : J38 Margam to J42 Earlswood : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 14/08/2026

End Date: 14/08/2026

First Published

14/08/2026 15:47

Reference Number

RNMDA_2026131198

Last Updated

14/08/2026 15:47

Source Agency

Welsh Government

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