M4 : Eastbound : J40 Taibach to J38 Margam : Lane closed : Delays possible : 08/12/25-10/12/25 0700-0600 :

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Description: M4 : Eastbound : J40 Taibach to J38 Margam : Lane closed : Delays possible : 08/12/25-10/12/25 0700-0600 :, Start time: 08/12/2025 7:00 , End Date: 10/12/2025 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 08/12/2025 7:23

Source: https://traffic.wales/road-traffic-alerts/588006