M4 : Westbound : J28 Tredegar Park :

M4 : Westbound : J28 Tredegar Park : Onslip closed : 07/05/26-08/05/26 2000-0600 : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 07/05/2026

End Date: 08/05/2026

First Published

01/05/2026 12:32

Reference Number

RNMDA_2026129165

Last Updated

01/05/2026 12:32

Source Agency

Welsh Government

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