Road closure archive
Search previously cleared incidents, planned works and cancelled closures. Use precise date ranges or focus on a particular corridor to understand how the network has been disrupted recently.
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700 archived incidents found
Filters applied: Region: cardiff • Status: Cleared
M4 : Now clear : Westbound : J29 Castleton to J32 Coryton
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: M4 : Now clear : Westbound : J29 Castleton to J32 Coryton, Start time: 05/05/2026 9:40 , Expected end time: 05/05/2026 9:45, Severity: Moderate, Source: Welsh Government, Last updated: 05/05/2026 9:40
M4 : Now clear : Eastbound : J30 Cardiff Gate
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: M4 : Now clear : Eastbound : J30 Cardiff Gate, Start time: 05/05/2026 9:41 , Expected end time: 05/05/2026 9:46, Severity: Moderate, Source: Welsh Government, Last updated: 05/05/2026 9:41
M4 : Eastbound : J32 Coryton : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: M4 : Eastbound : J32 Coryton : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
A4232 : Eastbound : M4 J33 Capel Llanilltern : Roadworks : Exit slip road closed : 27/04/26-01/05/26 2000-0600 :
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: A4232 : Eastbound : M4 J33 Capel Llanilltern : Roadworks : Exit slip road closed : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
A470 : Northbound : Coryton : Entry slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0100 :
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: A470 : Northbound : Coryton : Entry slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0100 :, Start time: 29/04/2026 20:00 , End Date: 30/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 29/04/2026 20:00
M4 : Eastbound : J33 Capel Llanilltern to J32 Coryton : Resurfacing work : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: M4 : Eastbound : J33 Capel Llanilltern to J32 Coryton : Resurfacing work : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
A470 : Northbound : Taff's Well : Roadworks : Road closed : Diversions in place : Entry slip road closed : 28/04/26-29/04/26 2000-0100 :
Cleared Roadworks Traffic WalesCleared 5 months 1 week ago
Description: A470 : Northbound : Taff's Well : Roadworks : Road closed : Diversions in place : Entry slip road closed : 28/04/26-29/04/26 2000-0100 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 28/04/2026 20:00
A470 : Southbound : Taff's Well to Coryton Interchange : Congestion : Delays possible :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: A470 : Southbound : Taff's Well to Coryton Interchange : Congestion : Delays possible :, Start time: 28/04/2026 16:33 , Expected end time: 28/04/2026 19:33, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:33
M4 : Now clear : Eastbound : J30 Cardiff Gate to J29 Castleton
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Now clear : Eastbound : J30 Cardiff Gate to J29 Castleton, Start time: 27/04/2026 14:33 , Expected end time: 27/04/2026 14:38, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 14:33
A470 : Southbound : Upper Boat to Coryton : Congestion :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: A470 : Southbound : Upper Boat to Coryton : Congestion :, Start time: 27/04/2026 8:48 , Expected end time: 27/04/2026 12:47, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 8:48
A470 : Northbound : Coryton to Nantgarw : Congestion :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: A470 : Northbound : Coryton to Nantgarw : Congestion :, Start time: 27/04/2026 8:47 , Expected end time: 27/04/2026 10:47, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 8:47
M4 : Both directions : J33 Capel Llanilltern : Services : no fuel :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Both directions : J33 Capel Llanilltern : Services : no fuel :, Start time: 27/04/2026 7:24 , Expected end time: 27/04/2026 9:24, Severity: Slight, Source: Welsh Government, Last updated: 27/04/2026 7:24
A470 : Southbound : Taff's Well to Coryton : Incident : Accident : Delays possible :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: A470 : Southbound : Taff's Well to Coryton : Incident : Accident : Delays possible :, Start time: 27/04/2026 8:40 , Expected end time: 27/04/2026 9:40, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 8:40
M4 : Eastbound : J30 Cardiff Gate : Congestion : offslip : Delays possible :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Eastbound : J30 Cardiff Gate : Congestion : offslip : Delays possible :, Start time: 27/04/2026 8:16 , Expected end time: 27/04/2026 10:16, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 8:16
M4 : Eastbound : J32 Coryton : 20/04/26-25/04/26 2000-0600 : offslip : Closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Eastbound : J32 Coryton : 20/04/26-25/04/26 2000-0600 : offslip : Closed : Diversions in place :, Start time: 20/04/2026 20:00 , End Date: 25/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 20/04/2026 20:00
M4 : Eastbound : J33 Capel Llanilltern : 23/04/26-24/04/26 2000-0600 : offslip : Closed :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Eastbound : J33 Capel Llanilltern : 23/04/26-24/04/26 2000-0600 : offslip : Closed :, Start time: 23/04/2026 20:00 , End Date: 24/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 23/04/2026 20:00
M4 : Westbound : J30 Cardiff Gate : 23/04/26-24/04/26 2000-0600 : offslip : Closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Westbound : J30 Cardiff Gate : 23/04/26-24/04/26 2000-0600 : offslip : Closed : Diversions in place :, Start time: 23/04/2026 20:00 , End Date: 24/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 23/04/2026 20:00
M4 : Westbound : J32 Coryton to J33 Capel Llanilltern : Congestion : Delays possible :
Cleared Roadworks Traffic WalesCleared 5 months 2 weeks ago
Description: M4 : Westbound : J32 Coryton to J33 Capel Llanilltern : Congestion : Delays possible :, Start time: 22/04/2026 17:40 , Expected end time: 22/04/2026 18:00, Severity: Moderate, Source: Welsh Government, Last updated: 22/04/2026 17:40
A4232 : Now clear : Northbound : A48 Interchange to St Fagans
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: A4232 : Now clear : Northbound : A48 Interchange to St Fagans, Start time: 19/04/2026 17:55 , Expected end time: 19/04/2026 18:00, Severity: Moderate, Source: Welsh Government, Last updated: 19/04/2026 17:55
M4 : Eastbound : J32 Coryton : 17/04/26-18/04/26 2000-0600 : Maintenance work : Offslip closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: M4 : Eastbound : J32 Coryton : 17/04/26-18/04/26 2000-0600 : Maintenance work : Offslip closed : Diversions in place :, Start time: 17/04/2026 20:00 , End Date: 18/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/04/2026 20:00
A470 : Westbound : Coryton : 17/04/26-18/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: A470 : Westbound : Coryton : 17/04/26-18/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place :, Start time: 17/04/2026 20:00 , End Date: 18/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/04/2026 20:00
A470 : Northbound : Coryton : 17/04/26-18/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place : Offslip closed :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: A470 : Northbound : Coryton : 17/04/26-18/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place : Offslip closed :, Start time: 17/04/2026 20:00 , End Date: 18/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/04/2026 20:00
A470 : Northbound : Broadway Interchange : 17/04/26-18/04/26 2000-0600 : Electrical work : Exit slip road closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: A470 : Northbound : Broadway Interchange : 17/04/26-18/04/26 2000-0600 : Electrical work : Exit slip road closed : Diversions in place :, Start time: 17/04/2026 20:00 , End Date: 18/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/04/2026 20:00
M4 : Westbound : J32 Coryton : 16/04/26-17/04/26 2000-0600 : Carriageway maintenance : Offslip closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: M4 : Westbound : J32 Coryton : 16/04/26-17/04/26 2000-0600 : Carriageway maintenance : Offslip closed : Diversions in place :, Start time: 16/04/2026 20:00 , End Date: 17/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/04/2026 20:00
A470 : Eastbound : Coryton : 16/04/26-17/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place :
Cleared Roadworks Traffic WalesCleared 5 months 3 weeks ago
Description: A470 : Eastbound : Coryton : 16/04/26-17/04/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place :, Start time: 16/04/2026 20:00 , End Date: 17/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/04/2026 20:00
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