M4 : Westbound : J28 Tredegar Park

M4 : Westbound : J28 Tredegar Park : Congestion : offslip : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 23/09/2026

End Date: 23/09/2026

First Published

23/09/2026 07:57

Reference Number

RNMDA_2026132014

Last Updated

23/09/2026 07:57

Source Agency

Welsh Government

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