M4 : Westbound : J37 Pyle to J39 Groes : 03/09/25-04/09/25 2000-0600 : Maintenance work : Closed : Diversions in place :

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Description: M4 : Westbound : J37 Pyle to J39 Groes : 03/09/25-04/09/25 2000-0600 : Maintenance work : Closed : Diversions in place :, Start time: 03/09/2025 20:00 , End Date: 04/09/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 30/08/2025 7:48

Source: https://traffic.wales/road-traffic-alerts/585089