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M4 : Eastbound : J47 Penllergaer to J43 Llandarcy : Congestion : Delays possible :

Active

Description: M4 : Eastbound : J47 Penllergaer to J43 Llandarcy : Congestion : Delays possible :, Start time: 14/08/2026 13:03 , Expected end time: 14/08/2026 18:59, Severity: Moderate, Source: Welsh Government, Last updated: 14/08/2026 13:03

Start time
To be confirmed
Expected end
Awaiting update
Duration
Live incident
Live incident
Active roadworks
Planned
Cleared
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First published
Fri, Aug 14, 2026 1:03 PM
Coordinates
51.678543, -3.916326
Feed provider
Traffic Wales
Coordinate source
Georss Point

Source: Traffic Wales data feed

Related incidents

M4 : Westbound : J46 Llangyfelach to J47 Penllergaer : Carriageway maintenance : Road closed : Diversions in place : 20/08/26-21/08/26 2000-0600 :

Active Roadworks Traffic Wales
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Started Start time TBC

Description: M4 : Westbound : J46 Llangyfelach to J47 Penllergaer : Carriageway maintenance : Road closed : Diversions in place : 20/08/26-21/08/26 2000-0600 :, Start time: 20/08/2026 20:00 , End Date: 21/08/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 14/08/2026 10:33

View update

M4 : Eastbound : J45 Ynysforgan to J42 Earlswood : Congestion : Due to Incident : Delays possible :

Cleared Roadworks Traffic Wales
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Cleared 1 month 5 days ago

Started Start time TBC Ended 9 Jul 2026, 12:15

Description: M4 : Eastbound : J45 Ynysforgan to J42 Earlswood : Congestion : Due to Incident : Delays possible :, Start time: 09/07/2026 11:17 , Expected end time: 09/07/2026 17:17, Severity: Moderate, Source: Welsh Government, Last updated: 09/07/2026 11:17

View update

M4 : Now clear : Eastbound : J45 Ynysforgan to J43 Llandarcy

Cleared Roadworks Traffic Wales
Swansea

Cleared 1 month 1 week ago

Started Start time TBC Ended 1 Jul 2026, 18:30

Description: M4 : Now clear : Eastbound : J45 Ynysforgan to J43 Llandarcy, Start time: 01/07/2026 19:10 , Expected end time: 01/07/2026 18:08, Severity: Moderate, Source: Welsh Government, Last updated: 01/07/2026 19:10

View update

M4 : Eastbound : J47 Penllergaer : Roadworks : Entry slip road closed : Diversions in place : 23/01/26-24/01/26 1900-0900 :

Cleared Roadworks Traffic Wales
Swansea

Cleared 6 months 3 weeks ago

Started Start time TBC Ended 24 Jan 2026, 09:05

Description: M4 : Eastbound : J47 Penllergaer : Roadworks : Entry slip road closed : Diversions in place : 23/01/26-24/01/26 1900-0900 :, Start time: 23/01/2026 19:00 , End Date: 24/01/2026 9:00, Severity: Road closure, Source: Welsh Government, Last updated: 23/01/2026 19:00

View update

M4 : Now clear : Westbound : J41 Pentyla/Baglan to J49 Pont Abraham

Cleared Roadworks Traffic Wales
Swansea

Cleared 9 months 2 weeks ago

Started Start time TBC Ended 26 Oct 2025, 20:05

Description: M4 : Now clear : Westbound : J41 Pentyla/Baglan to J49 Pont Abraham, Start time: 26/10/2025 18:36 , Expected end time: 26/10/2025 18:41, Severity: Slight, Source: Welsh Government, Last updated: 26/10/2025 18:36

View update

M4 : Now clear : Westbound : J44 Lon Las

Cleared Roadworks Traffic Wales
Swansea

Cleared 9 months 1 week ago

Started Start time TBC Ended 4 Nov 2025, 14:30

Description: M4 : Now clear : Westbound : J44 Lon Las, Start time: 04/11/2025 13:13 , Expected end time: 04/11/2025 13:18, Severity: Moderate, Source: Welsh Government, Last updated: 04/11/2025 13:13

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