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

A48M : Eastbound : M4 J29A St Mellons to M4 J29 Castleton : Closed : Local diversions in place 06/01/26-09/01/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 06/01/2026

End Date: 09/01/2026

First Published

03/01/2026 08:00

Reference Number

RNMDA_2026126335

Last Updated

03/01/2026 08:00

Source Agency

Welsh Government

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