M4 : Westbound : J23A Magor

M4 : Westbound : J23A Magor : 20/09/26-21/09/26 2000-0600 : onslip : Closed : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 20/09/2026

End Date: 21/09/2026

First Published

18/09/2026 18:33

Reference Number

RNMDA_2026131924

Last Updated

18/09/2026 18:33

Source Agency

Welsh Government

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