A48M : Westbound : M4 J29 Castleton to M4 J29A St Mellons :

A48M : Westbound : M4 J29 Castleton to M4 J29A St Mellons : Closed : Local diversions in place 05/01/26-06/01/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 05/01/2026

End Date: 06/01/2026

First Published

03/01/2026 07:59

Reference Number

RNMDA_2026126336

Last Updated

03/01/2026 07:59

Source Agency

Welsh Government

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