M4 : Westbound : J36 Sarn :

M4 : Westbound : J36 Sarn : Carriageway maintenance : Onslip closed : Diversions in place : 01/03/26-02/03/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 01/03/2026

End Date: 02/03/2026

First Published

27/02/2026 16:48

Reference Number

RNMDA_2026127671

Last Updated

27/02/2026 16:48

Source Agency

Welsh Government

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