M4 : Westbound : J23A Magor : 23/02/26-26/02/26 2000-0600 : Carriageway maintenance : Entry slip road closed : Diversion
Posted: Sat Feb 21, 2026 8:38 am
Description: M4 : Westbound : J23A Magor : 23/02/26-26/02/26 2000-0600 : Carriageway maintenance : Entry slip road closed : Diversions in place :, Start time: 23/02/2026 20:00 , End Date: 26/02/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/02/2026 8:38
Source: https://traffic.wales/road-traffic-alerts/589741
Source: https://traffic.wales/road-traffic-alerts/589741