M4 : Westbound : J39 Groes :

M4 : Westbound : J39 Groes : Onslip closed : 01/04/26-02/04/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 01/04/2026

End Date: 02/04/2026

First Published

28/03/2026 08:50

Reference Number

RNMDA_2026128303

Last Updated

28/03/2026 08:50

Source Agency

Welsh Government

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