M4 : Westbound : J47 Penllergaer to J48 Hendy :

M4 : Westbound : J47 Penllergaer to J48 Hendy : 25/02/26-27/02/26 1900-0600 : Carriageway maintenance : Closed : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 25/02/2026

End Date: 27/02/2026

First Published

21/02/2026 09:15

Reference Number

RNMDA_2026127485

Last Updated

21/02/2026 09:15

Source Agency

Welsh Government

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