M4 : Westbound : J38 Margam

M4 : Westbound : J38 Margam : 10/09/26-15/09/26 2000-0600 : Exit slip road closed : Clearance work : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 10/09/2026

End Date: 15/09/2026

First Published

12/09/2026 09:36

Reference Number

RNMDA_2026131779

Last Updated

12/09/2026 09:36

Source Agency

Welsh Government

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