M4 : Westbound : J39 Groes to J43 Llandarcy

M4 : Westbound : J39 Groes to J43 Llandarcy : Congestion : Delays possible :

Type of event: Incidents

Severity of disruption: Moderate

Start Date: 10/09/2026

End Date: 10/09/2026

First Published

10/09/2026 17:14

Reference Number

RNMDA_2026131712

Last Updated

10/09/2026 17:14

Source Agency

Welsh Government

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