M4 : Westbound : J37 Pyle to J41 Pentyla/Baglan :

M4 : Westbound : J37 Pyle to J41 Pentyla/Baglan : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 22/05/2026

End Date: 22/05/2026

First Published

22/05/2026 14:04

Reference Number

RNMDA_2026129559

Last Updated

22/05/2026 14:04

Source Agency

Welsh Government

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