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M4 : Westbound : J44 Lon Las & J45 Ynysforgan :

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  3. M4 : Westbound : J44 Lon Las & J45 Ynysforgan :
M4 : Westbound : J44 Lon Las & J45 Ynysforgan : Roadworks : Onslip closed : Only one slip will be closed at a time : Diversions in place : 12/09/25-13/09/25 2200-0600 :
Type of event: Roadworks
Severity of disruption: Road closure
Start Date: 12/09/2025
End Date: 13/09/2025

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First Published
07/09/2025 08:50
Reference Number
RNMDA_2025123455
Last Updated
07/09/2025 08:50
Source Agency
Welsh Government
Connect with Traffic Wales