M4 : Westbound : Prince of Wales Bridge to J23A Magor :

M4 : Westbound : Prince of Wales Bridge to J23A Magor : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 12/03/2026

End Date: 12/03/2026

First Published

12/03/2026 16:28

Reference Number

RNMDA_2026127969

Last Updated

12/03/2026 16:28

Source Agency

Welsh Government

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