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 : Northbound : A4054 Merthyr Rd, Total Closure Northbound from Birch Hill to Taffs Wells Roundabout

  1. Home
  2. Road traffic alerts
  3. M4 : Northbound : A4054 Merthyr Rd, Total Closure Northbound from Birch Hill to Taffs Wells Roundabout
M4 : Northbound : A4054 Merthyr Rd, Total Closure Northbound from Birch Hill to Taffs Wells Roundabout : Diversions in place : 17/08/26-07/09/26 2000-0600 :
Type of event: Roadworks
Severity of disruption: Road closure
Start Date: 17/08/2026
End Date: 07/09/2026

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

First Published
14/08/2026 10:27
Reference Number
RNMDA_2026131181
Last Updated
14/08/2026 10:27
Source Agency
Welsh Government
Connect with Traffic Wales