M4 : Westbound : J33 Capel Llanilltern : Congestion : offslip : Delays possible :
ActiveDescription: M4 : Westbound : J33 Capel Llanilltern : Congestion : offslip : Delays possible :, Start time: 21/10/2026 7:43 , Expected end time: 21/10/2026 10:43, Severity: Moderate, Source: Welsh Government, Last updated: 21/10/2026 7:43
- Start time
- To be confirmed
- Expected end
- Awaiting update
- Duration
- Live incident
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- First published
- Wed, Oct 21, 2026 7:43 AM
- Coordinates
- 51.506802, -3.308591
- Feed provider
- Traffic Wales
- Coordinate source
- Georss Point
Source: Traffic Wales data feed
Related incidents
A4232 : Southbound : M4 J33 Capel Llanilltern to A48 Interchange : Congestion : Delays possible :
Active Roadworks Traffic WalesDescription: A4232 : Southbound : M4 J33 Capel Llanilltern to A48 Interchange : Congestion : Delays possible :, Start time: 21/10/2026 7:01 , Expected end time: 21/10/2026 10:01, Severity: Moderate, Source: Welsh Government, Last updated: 21/10/2026 7:01
A470 : Southbound : Coryton : Onslip closed : 18/10/26-22/10/26 2000-0600 : Diversions in place :
Active Roadworks Traffic WalesDescription: A470 : Southbound : Coryton : Onslip closed : 18/10/26-22/10/26 2000-0600 : Diversions in place :, Start time: 18/10/2026 20:00 , End Date: 22/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 18/10/2026 20:00
A4232 : Now clear : Northbound : A48 Interchange to M4 J33 Capel Llanilltern
Cleared Roadworks Traffic WalesCleared 1 minute 51 seconds ago
Description: A4232 : Now clear : Northbound : A48 Interchange to M4 J33 Capel Llanilltern, Start time: 21/10/2026 9:14 , Expected end time: 21/10/2026 9:19, Severity: Moderate, Source: Welsh Government, Last updated: 21/10/2026 9:14
M4 : Now clear : Eastbound : J33 Capel Llanilltern
Cleared Roadworks Traffic WalesCleared 41 minutes 51 seconds ago
Description: M4 : Now clear : Eastbound : J33 Capel Llanilltern, Start time: 21/10/2026 8:32 , Expected end time: 21/10/2026 8:37, Severity: Moderate, Source: Welsh Government, Last updated: 21/10/2026 8:32
A470 : Now clear : Southbound : Nantgarw to Coryton
Cleared Roadworks Traffic WalesCleared 1 minute 51 seconds ago
Description: A470 : Now clear : Southbound : Nantgarw to Coryton, Start time: 21/10/2026 9:13 , Expected end time: 21/10/2026 9:18, Severity: Moderate, Source: Welsh Government, Last updated: 21/10/2026 9:13
A470 : Now clear : Northbound : Coryton to Upper Boat
Cleared Roadworks Traffic WalesCleared 13 hours 51 minutes ago
Description: A470 : Now clear : Northbound : Coryton to Upper Boat, Start time: 20/10/2026 19:15 , Expected end time: 20/10/2026 18:10, Severity: Moderate, Source: Welsh Government, Last updated: 20/10/2026 19:15