M4 : Westbound : J36 Sarn :

M4 : Westbound : J36 Sarn : Resurfacing work : Entry slip road closed : Diversions in place : 11/03/26-12/03/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 11/03/2026

End Date: 12/03/2026

First Published

06/03/2026 12:21

Reference Number

RNMDA_2026127827

Last Updated

06/03/2026 12:21

Source Agency

Welsh Government

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