M4 : Westbound : J37 Pyle to J39 Groes : 14/12/25-19/12/25 2000-0600 : Maintenance work : Closed : Diversions in place :
Posted: Sun Dec 14, 2025 8:00 pm
Description: M4 : Westbound : J37 Pyle to J39 Groes : 14/12/25-19/12/25 2000-0600 : Maintenance work : Closed : Diversions in place :, Start time: 14/12/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 14/12/2025 20:00
Source: https://traffic.wales/road-traffic-alerts/588201
Source: https://traffic.wales/road-traffic-alerts/588201