M4 : Eastbound : J46 Llangyfelach to J45 Ynysforgan

M4 : Eastbound : J46 Llangyfelach to J45 Ynysforgan : 17/09/26-18/09/26 1900-0100 : Carriageway maintenance : Closed : Diversions in place :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 17/09/2026

End Date: 18/09/2026

First Published

12/09/2026 10:15

Reference Number

RNMDA_2026131784

Last Updated

12/09/2026 10:15

Source Agency

Welsh Government

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