0300 123 1213
Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.
Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.

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

  1. Home
  2. Road traffic alerts
  3. M4 : Westbound : J41 Pentyla/Baglan to J43 Llandarcy :
M4 : Westbound : J41 Pentyla/Baglan to J43 Llandarcy : Resurfacing work : Road closed : Diversions in place : 17/01/26-19/01/26 2000-0600 :
Type of event: Roadworks
Severity of disruption: Road closure
Start Date: 17/01/2026
End Date: 19/01/2026

Go to our Contact page to contact us about this traffic alert. Please quote the reference number below.

First Published
09/01/2026 16:13
Reference Number
RNMDA_2026126476
Last Updated
09/01/2026 16:13
Source Agency
Welsh Government
Connect with Traffic Wales