Live traffic alerts M48 : Both directions : Severn Bridge : 7.5t weight restriction for heavy goods vehicles from 27/05/25-until further notice Start 27/05/2025 End 23/05/2026 M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : Resurfacing work : Road closed : Diversions in place : 23/07/25-21/08/25 2000-0600 : Start 23/07/2025 End 21/08/2025 M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : Lane closed : Due to Maintenance works : Delays possible : Start 24/07/2025 End 20/08/2025 OF View more live traffic alerts