M4 : Westbound : J39 Groes

M4 : Westbound : J39 Groes : Onslip closed : 19/10/26-24/10/26 2000-0600 : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 19/10/2026

End Date: 24/10/2026

First Published

16/10/2026 10:58

Reference Number

RNMDA_2026132661

Last Updated

16/10/2026 10:58

Source Agency

Welsh Government

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