M4 : Westbound : J44 Lon Las to J45 Ynysforgan

M4 : Westbound : J44 Lon Las to J45 Ynysforgan : Carriageway maintenance : Road closed : Diversions in place : 29/06/26-04/07/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 29/06/2026

End Date: 04/07/2026

First Published

27/06/2026 08:14

Reference Number

RNMDA_2026130290

Last Updated

27/06/2026 08:14

Source Agency

Welsh Government

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