M4 : Westbound : J41 Pentyla/Baglan :

M4 : Westbound : J41 Pentyla/Baglan : Carriageway maintenance : Exit slip road closed : Diversions in place : 23/03/26-27/03/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 23/03/2026

End Date: 27/03/2026

First Published

22/03/2026 11:53

Reference Number

RNMDA_2026128190

Last Updated

22/03/2026 11:53

Source Agency

Welsh Government

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