M4 : Westbound : J23A Magor to J24 Coldra

M4 : Westbound : J23A Magor to J24 Coldra : 05/10/26-09/10/26 2000-0600 : Entry slip road closed : Surveys : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 05/10/2026

End Date: 09/10/2026

First Published

03/10/2026 15:31

Reference Number

RNMDA_2026132290

Last Updated

03/10/2026 15:31

Source Agency

Welsh Government

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