M4 : Both directions : J40 Taibach to J41 Pentyla/Baglan :

M4 : Both directions : J40 Taibach to J41 Pentyla/Baglan : Emergency works : Lanes closed : Delays possible

Type of event: Roadworks

Severity of disruption: Moderate

Start Date: 28/05/2026

End Date: 31/05/2026

First Published

28/05/2026 19:52

Reference Number

RNMDA_2026129657

Last Updated

28/05/2026 19:52

Source Agency

Welsh Government

Connect with Traffic Wales