M4 : Eastbound : J40 Taibach to J39 Groes : 19/11/26-20/11/26 2000-0025 : Exit slip road closed : Entry slip road closed : Cyclic maintenance : Closed : Diversions in place :
First Published
13/11/2026 17:48
Reference Number
RNMDA_2026133433
Last Updated
13/11/2026 17:48
Source Agency
Welsh Government