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M4 : Westbound : J44 Lon Las

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M4 : Westbound : J44 Lon Las : Roadworks : Exit slip road closed : and Entry slip road closed : Diversions in place : 01/11/26-03/11/26 2000-0600 :
Type of event: Roadworks
Severity of disruption: Road closure
Start Date: 01/11/2026
End Date: 03/11/2026

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

First Published
30/10/2026 13:54
Reference Number
RNMDA_2026133053
Last Updated
30/10/2026 13:54
Source Agency
Welsh Government
Connect with Traffic Wales