M4 : Eastbound : J38 Margam to J39 Groes :

M4 : Eastbound : J38 Margam to J39 Groes : Roadworks : Road closed : Diversions in place : 26/09/25-29/09/25 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 26/09/2025

End Date: 29/09/2025

First Published

19/09/2025 12:01

Reference Number

RNMDA_2025123837

Last Updated

19/09/2025 12:01

Source Agency

Welsh Government

Connect with Traffic Wales