M4 : Westbound : J23A Magor to J26 Malpas :

M4 : Westbound : J23A Magor to J26 Malpas : Congestion :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 21/05/2026

End Date: 21/05/2026

First Published

21/05/2026 15:58

Reference Number

RNMDA_2026129543

Last Updated

21/05/2026 15:58

Source Agency

Welsh Government

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