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M4 : Eastbound : J38 Margam to J37 Pyle

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M4 : Eastbound : J38 Margam to J37 Pyle : 19/09/26-26/09/26 2000-0600 : J38: Entry slip road closed : 2 lanes closed : Surveys : Diversions in place :
Type of event: Roadworks
Severity of disruption: Road closure
Start Date: 19/09/2026
End Date: 26/09/2026

Go to our Contact page to contact us about this traffic alert. Please quote the reference number below.

First Published
12/09/2026 09:39
Reference Number
RNMDA_2026131780
Last Updated
12/09/2026 09:39
Source Agency
Welsh Government
Connect with Traffic Wales