M4 : Westbound : J38 Margam to J41 Pentyla/Baglan

M4 : Westbound : J38 Margam to J41 Pentyla/Baglan : Roadworks : Road closed : Diversions in place : 02/11/26-04/11/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 02/11/2026

End Date: 04/11/2026

First Published

30/10/2026 13:49

Reference Number

RNMDA_2026133048

Last Updated

30/10/2026 13:49

Source Agency

Welsh Government

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