M4 : Eastbound : J38 Margam to J37 Pyle :

M4 : Eastbound : J38 Margam to J37 Pyle : Road closed : Maintenance work : 16/03/26-21/03/26 2000-0600 : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 16/03/2026

End Date: 21/03/2026

First Published

14/03/2026 08:32

Reference Number

RNMDA_2026128028

Last Updated

14/03/2026 08:32

Source Agency

Welsh Government

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