M4 : Westbound : J40 Taibach to J41 Pentyla/Baglan :

M4 : Westbound : J40 Taibach to J41 Pentyla/Baglan : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 21/04/2026

End Date: 21/04/2026

First Published

21/04/2026 17:09

Reference Number

RNMDA_2026128882

Last Updated

21/04/2026 17:09

Source Agency

Welsh Government

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