M4 : Westbound : J44 Lon Las to J45 Ynysforgan : 16/09/26-17/09/26 1900-0100 : Carriageway maintenance : Closed : Diversions in place :
ClearedDescription: M4 : Westbound : J44 Lon Las to J45 Ynysforgan : 16/09/26-17/09/26 1900-0100 : Carriageway maintenance : Closed : Diversions in place :, Start time: 16/09/2026 19:00 , End Date: 17/09/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/09/2026 19:00
- Start time
- To be confirmed
- Expected end
- Thu, Sep 17, 2026 12:05 AM
- Duration
- Live incident
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- First published
- Wed, Sep 16, 2026 7:00 PM
- Cleared
- Thu, Sep 17, 2026 12:05 AM
- Coordinates
- 51.674114, -3.895962
- Feed provider
- Traffic Wales
- Coordinate source
- Georss Point
Source: Traffic Wales data feed
Related incidents
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M4 : Eastbound : J47 Penllergaer : Roadworks : Entry slip road closed : Diversions in place : 23/01/26-24/01/26 1900-0900 :
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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