M4 : Westbound : J23A Magor :

M4 : Westbound : J23A Magor : Carriageway maintenance : Entry slip road closed : Diversions in place : 02/03/26-05/03/26 2100-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 02/03/2026

End Date: 05/03/2026

First Published

27/02/2026 16:13

Reference Number

RNMDA_2026127663

Last Updated

27/02/2026 16:13

Source Agency

Welsh Government

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