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

A48M : Eastbound : M4 J29A St Mellons to M4 J29 Castleton : Roadworks : Road closed : Diversions in place : 09/03/26-12/03/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 09/03/2026

End Date: 12/03/2026

First Published

06/03/2026 12:09

Reference Number

RNMDA_2026127818

Last Updated

09/03/2026 20:00

Source Agency

Welsh Government

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