M4 : Eastbound : J40 Taibach to J38 Margam :

M4 : Eastbound : J40 Taibach to J38 Margam : Lane closed : Delays possible : 08/12/25-10/12/25 0700-0600 :

Type of event: Roadworks

Severity of disruption: Moderate

Start Date: 08/12/2025

End Date: 10/12/2025

First Published

08/12/2025 07:23

Reference Number

RNMDA_2025125886

Last Updated

08/12/2025 07:23

Source Agency

Welsh Government

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