M4 : Westbound : J28 Tredegar Park to J29 Castleton :

M4 : Westbound : J28 Tredegar Park to J29 Castleton : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 18/11/2025

End Date: 18/11/2025

First Published

18/11/2025 16:42

Reference Number

RNMDA_2025125341

Last Updated

18/11/2025 16:42

Source Agency

Welsh Government

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