M4 : Westbound : J41 Pentyla/Baglan to J43 Llandarcy :

M4 : Westbound : J41 Pentyla/Baglan to J43 Llandarcy : Closed : Local diversions in place 10/01/26-12/01/26 2000-0600 :

Type of event: Roadworks

Severity of disruption: Road closure

Start Date: 10/01/2026

End Date: 12/01/2026

First Published

03/01/2026 08:09

Reference Number

RNMDA_2026126342

Last Updated

03/01/2026 08:09

Source Agency

Welsh Government

Connect with Traffic Wales