M4 : Westbound : J37 Pyle to J38 Margam

M4 : Westbound : J37 Pyle to J38 Margam : 03/10/26-04/10/26 2000-0600 : Maintenance work : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 03/10/2026

End Date: 04/10/2026

First Published

03/10/2026 11:55

Reference Number

RNMDA_2026132280

Last Updated

03/10/2026 11:55

Source Agency

Welsh Government

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