Traffic Cefncaeau

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Cefncaeau
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Nearby: LlanelliSwanseaThe MumblesNeathFfair-fâchCarmarthen

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FULL SCREEN UPDATED: 16:51

Current traffic around Cefncaeau

The following traffic incidents and congestion for Cefncaeau have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

J46 LLANGYFELACH TO J45 YNYSFORGAN

Description: M4EastboundJ46 (Swansea) Llangyfelach to J45 (Swansea) Ynysforgan17/09/26-18/09/26 1900-0100Carriageway maintenanceClosedDiversions in place :, Start time: 17/09/2026 19:00 , End Date: 18/09/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:15
Nearest town: 8.15 miles from Cefncaeau. CLEARED @ 16:18

J48 HENDY

Description: M4WestboundJ48 (Pontarddulais) Hendy14/09/26-15/09/26 1900-0600Carriageway maintenanceExit slip road closedDiversions in place :, Start time: 14/09/2026 19:00 , End Date: 15/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:17
Nearest town: 3.93 miles from Cefncaeau. CLEARED @ 16:18

J48 HENDY TO J47 PENLLERGAER

Description: M4EastboundJ48 (Pontarddulais) Hendy to J47 (Swansea) Penllergaer15/09/26-17/09/26 2000-0600Carriageway maintenanceClosedDiversions in place :, Start time: 15/09/2026 20:00 , End Date: 17/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:33
Nearest town: 4.61 miles from Cefncaeau. CLEARED @ 16:18

J48 HENDY

Description: M4WestboundJ48 (Pontarddulais) Hendy17/09/26-18/09/26 1900-0600Carriageway maintenanceExit slip road closedDiversions in place :, Start time: 17/09/2026 19:00 , End Date: 18/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:38
Nearest town: 3.93 miles from Cefncaeau. CLEARED @ 16:18

LANE CLOSED: SINGLE ALTERNATE LINE TRAFFIC; ROADWORKS

Single alternate line traffic; Roadworks
Nearest town: 15.14 miles from Cefncaeau.

ROAD CLOSED: CLOSED; ROADWORKS

Closed; Roadworks
Nearest town: 8.34 miles from Cefncaeau.

There are no current incidents in this location.

Roadworks

Traffic in Nearby Villages

Trostre (0.62mi)
Llwynhendy (0.62mi)
Bynea (0.62mi)
Penceiliogi (0.62mi)
Pemberton (0.62mi)
Halfway (0.88mi)
Bryn (0.88mi)
Pen y fan (1.24mi)
Yspitty (1.39mi)
Machynys (1.39mi)
Dafen (1.39mi)
Capel (1.75mi)
Llangennech (1.75mi)
Glanmwrwg (1.75mi)
Ty isaf (1.86mi)
Llanelli (1.96mi)
Swiss Valley (1.96mi)
Felinfoel (1.96mi)
Furnace (2.24mi)
Pentre Poeth (2.24mi)
Allt (2.24mi)
Sandy (2.55mi)
Loughor (2.56mi)
Cefn bychan (2.56mi)
Parc hendy (2.56mi)
Pen clawdd (2.56mi)
Blue Anchor (2.56mi)
Crofty (2.56mi)
Pen caer fenny (2.56mi)
Pen y fai (2.77mi)
Penyrheol (3.1mi)
Wern olau (3.1mi)

Cefncaeau

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Elsewhere on the web:

National Highways England

Official source of traffic updates.

Transport for London (TFL)

Transport for London's (TfL) portal for transportation in London.

Traffic Wales

The Welsh government's traffic information service for Wales.

Traffic Scotland

Live traffic conditions and news for Scotland's road network.

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Description: M4 : Eastbound : J46 (Swansea) Llangyfelach to J45 (Swansea) Ynysforgan : 17/09/26-18/09/26 1900-0100 : Carriageway maintenance : Closed : Diversions in place :, Start time: 17/09/2026 19:00 , End Date: 18/09/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:15
Nearest town: 8.15 miles from Cefncaeau.

51.68--3.94

Description: M4 : Westbound : J48 (Pontarddulais) Hendy : 14/09/26-15/09/26 1900-0600 : Carriageway maintenance : Exit slip road closed : Diversions in place :, Start time: 14/09/2026 19:00 , End Date: 15/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:17
Nearest town: 3.93 miles from Cefncaeau.

51.71--4.06

Description: M4 : Eastbound : J48 (Pontarddulais) Hendy to J47 (Swansea) Penllergaer : 15/09/26-17/09/26 2000-0600 : Carriageway maintenance : Closed : Diversions in place :, Start time: 15/09/2026 20:00 , End Date: 17/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:33
Nearest town: 4.61 miles from Cefncaeau.

51.7--4.03

Description: M4 : Westbound : J48 (Pontarddulais) Hendy : 17/09/26-18/09/26 1900-0600 : Carriageway maintenance : Exit slip road closed : Diversions in place :, Start time: 17/09/2026 19:00 , End Date: 18/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/09/2026 10:38
Nearest town: 3.93 miles from Cefncaeau.

51.71--4.06

Single alternate line traffic; Roadworks
Nearest town: 15.14 miles from Cefncaeau.

51.86--4.31

Closed; Roadworks
Nearest town: 8.34 miles from Cefncaeau.

51.62--3.95

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