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M4 : Westbound : J24 Coldra to J26 Malpas : Congestion : Delays possible :

Active

Description: M4 : Westbound : J24 Coldra to J26 Malpas : Congestion : Delays possible :, Start time: 19/08/2026 14:52 , Expected end time: 19/08/2026 16:52, Severity: Moderate, Source: Welsh Government, Last updated: 19/08/2026 14:52

Start time
To be confirmed
Expected end
Awaiting update
Duration
Live incident
Live incident
Active roadworks
Planned
Cleared
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First published
Wed, Aug 19, 2026 2:52 PM
Coordinates
51.596832, -2.964887
Feed provider
Traffic Wales
Coordinate source
Georss Point

Source: Traffic Wales data feed

Related incidents

M4 : Eastbound : J25A Grove Park : Carriageway maintenance : Entry slip road closed : Diversions in place : 17/08/26-22/08/26 2000-0600 :

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Started Start time TBC

Description: M4 : Eastbound : J25A Grove Park : Carriageway maintenance : Entry slip road closed : Diversions in place : 17/08/26-22/08/26 2000-0600 :, Start time: 17/08/2026 20:00 , End Date: 22/08/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/08/2026 20:00

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M4 : Eastbound : J26 Malpas : Carriageway maintenance : Onslip closed : Diversions in place : 17/08/26-22/08/26 2000-0600 :

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Started Start time TBC

Description: M4 : Eastbound : J26 Malpas : Carriageway maintenance : Onslip closed : Diversions in place : 17/08/26-22/08/26 2000-0600 :, Start time: 17/08/2026 20:00 , End Date: 22/08/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 17/08/2026 20:00

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M4 : Eastbound : J30 Cardiff Gate to J28 Tredegar Park : Congestion : Delays possible :

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Description: M4 : Eastbound : J30 Cardiff Gate to J28 Tredegar Park : Congestion : Delays possible :, Start time: 26/11/2025 17:15 , Expected end time: 26/11/2025 20:15, Severity: Moderate, Source: Welsh Government, Last updated: 26/11/2025 17:15

View update

M4 : Westbound : J23A Magor to J26 Malpas : Congestion :

Cleared Roadworks Traffic Wales
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Cleared 1 month 3 weeks ago

Started Start time TBC Ended 26 Jun 2026, 18:05

Description: M4 : Westbound : J23A Magor to J26 Malpas : Congestion :, Start time: 26/06/2026 12:56 , Expected end time: 26/06/2026 18:56, Severity: Moderate, Source: Welsh Government, Last updated: 26/06/2026 12:56

View update

M4 : Now clear : Eastbound : JBGT Brynglas Tunnels

Cleared Roadworks Traffic Wales
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Cleared 2 months 2 weeks ago

Started Start time TBC Ended 1 Jun 2026, 23:40

Description: M4 : Now clear : Eastbound : JBGT Brynglas Tunnels, Start time: 01/06/2026 23:16 , Expected end time: 01/06/2026 23:21, Severity: Slight, Source: Welsh Government, Last updated: 01/06/2026 23:16

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M4 : Now clear : Eastbound : J28 Tredegar Park to J26 Malpas

Cleared Roadworks Traffic Wales
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Cleared 1 month 3 weeks ago

Started Start time TBC Ended 26 Jun 2026, 17:30

Description: M4 : Now clear : Eastbound : J28 Tredegar Park to J26 Malpas, Start time: 26/06/2026 18:10 , Expected end time: 26/06/2026 18:07, Severity: Moderate, Source: Welsh Government, Last updated: 26/06/2026 18:10

View update