M4 : Westbound : J37 Pyle to J38 Margam

M4 : Westbound : J37 Pyle to J38 Margam : Resurfacing work : Exit slip road closed : Diversions in place : 01/07/26-02/07/26 1900-0100 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 01/07/2026

End Date: 02/07/2026

First Published

27/06/2026 08:09

Reference Number

RNMDA_2026130287

Last Updated

27/06/2026 08:09

Source Agency

Welsh Government

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