M4 : Westbound : J40 Taibach to J44 Lon Las :

M4 : Westbound : J40 Taibach to J44 Lon Las : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 03/04/2026

End Date: 03/04/2026

First Published

03/04/2026 11:34

Reference Number

RNMDA_2026128440

Last Updated

03/04/2026 11:34

Source Agency

Welsh Government

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