M4 : Eastbound : J28 Tredegar Park to J24 Coldra : 03/09/25-05/09/25 2000-0600 : Maintenance work : Tunnel closed : Dive

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Description: M4 : Eastbound : J28 Tredegar Park to J24 Coldra : 03/09/25-05/09/25 2000-0600 : Maintenance work : Tunnel closed : Diversions in place :, Start time: 03/09/2025 20:00 , End Date: 05/09/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 30/08/2025 8:40

Source: https://traffic.wales/road-traffic-alerts/585093