M4 : Westbound : J26 Malpas to J28 Tredegar Park

M4 : Westbound : J26 Malpas to J28 Tredegar Park : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 15/08/2026

End Date: 15/08/2026

First Published

15/08/2026 15:42

Reference Number

RNMDA_2026131218

Last Updated

15/08/2026 15:42

Source Agency

Welsh Government

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