Cardiff traffic conditions - incidents & roadworks

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FULL SCREENUPDATED: 20:14

Current traffic around Cardiff

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

PONTYPRIDD ALBION FOOTBRIDGE

Description: A470Both directionsPontypridd Albion FootbridgeResurfacing workRoad closedDiversions in place02/08/26-30/08/26 0600-2355 :,Start time: 02/08/2026 6:00 ,End Date:30/08/2026 23:55,Severity: Road closure,Source: Welsh Government, Last updated: 02/08/2026 6:00
Nearest town: 10.57 miles from Cardiff.

PONTYPRIDD BRIDGE STREET INTERCHANGE

Description: A470NorthboundPontypridd Bridge Street InterchangeElectrical workOnslip closed1 lane closed17/08/26-18/08/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:18/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:20
Nearest town: 10.57 miles from Cardiff.

TAFF'S WELL

Description: A470Both directionsTaffs WellCarriageway maintenanceEntry slip road closedDiversions in place17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:22
Nearest town: 5.79 miles from Cardiff.

TAFF'S WELL

Description: A470NorthboundTaffs WellCarriageway maintenanceExit slip road closedDiversions in place17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:23
Nearest town: 5.79 miles from Cardiff.

J25A GROVE PARK

Description: M4EastboundJ25A (Newport) Grove ParkCarriageway maintenanceEntry slip road closedDiversions in place17/08/26-22/08/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:22/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:25
Nearest town: 12.01 miles from Cardiff.

A4054 MERTHYR RD, TOTAL CLOSURE NORTHBOUND FROM BIRCH HILL TO TAFFS WELLS ROUNDABOUT

Description: M4NorthboundA4054 Merthyr Rd,Total Closure Northbound from Birch Hill to Taffs Wells RoundaboutDiversions in place17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:27
Nearest town: 4.83 miles from Cardiff.

J26 MALPAS

Description: M4EastboundJ26 (Newport) MalpasCarriageway maintenanceOnslip closedDiversions in place17/08/26-22/08/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:22/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:30
Nearest town: 11.04 miles from Cardiff.

J32 CORYTON

Description: M4WestboundJ32 (Cardiff) CorytonStructural inspectionsEntry slip road closedDiversions in place17/08/26-18/08/26 2200-0600 :,Start time: 17/08/2026 22:00 ,End Date:18/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:31
Nearest town: 4.83 miles from Cardiff.

There are no current incidents in this location.

Roadworks

Traffic in Nearby Villages

Splott (0.2mi)
Caerdydd (Cardiff) (0.57mi)
Cardiff (Caerdydd) (0.57mi)
Monmouthshire and Brecon Canal (0.63mi)
Roath (0.8mi)
East Moors (0.83mi)
Cathays (0.96mi)
Tremorfa (1.06mi)
Riverside (1.17mi)
Cathays Park (1.17mi)
Butetown (1.19mi)
Blackweir (1.41mi)
Pen y lan (1.42mi)
Grangetown (1.57mi)
Canton (1.79mi)
Maindy (1.83mi)
Pontcanna (1.95mi)
Roath Park (2.11mi)
Mynachdy (2.28mi)
Gabalfa (2.28mi)
Heath (2.35mi)
Pwll Mawr (2.4mi)
Rumney (2.43mi)
Llandochau (Llandough) (2.45mi)
Llandough (Llandochau) (2.45mi)
Llandaff (2.53mi)
Cogan (2.58mi)
Leckwith (2.62mi)
Cyncoed (2.72mi)
Llanedeyrn (2.75mi)
Llandaff North (2.79mi)
Newton (2.93mi)

Cardiff

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Traffic Wales

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Traffic Scotland

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Description: A470 : Both directions : Pontypridd Albion Footbridge : Resurfacing work : Road closed : Diversions in place : 02/08/26-30/08/26 0600-2355 :,Start time: 02/08/2026 6:00 ,End Date:30/08/2026 23:55,Severity: Road closure,Source: Welsh Government, Last updated: 02/08/2026 6:00
Nearest town: 10.57 miles from Cardiff.

51.59--3.32

Description: A470 : Northbound : Pontypridd Bridge Street Interchange : Electrical work : Onslip closed : 1 lane closed : 17/08/26-18/08/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:18/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:20
Nearest town: 10.57 miles from Cardiff.

51.59--3.32

Description: A470 : Both directions : Taffs Well : Carriageway maintenance : Entry slip road closed : Diversions in place : 17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:22
Nearest town: 5.79 miles from Cardiff.

51.54--3.26

Description: A470 : Northbound : Taffs Well : Carriageway maintenance : Exit slip road closed : Diversions in place : 17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:23
Nearest town: 5.79 miles from Cardiff.

51.54--3.26

Description: M4 : Eastbound : J25A (Newport) 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: 14/08/2026 10:25
Nearest town: 12.01 miles from Cardiff.

51.6--2.98

Description: M4 : Northbound : A4054 Merthyr Rd,Total Closure Northbound from Birch Hill to Taffs Wells Roundabout : Diversions in place : 17/08/26-07/09/26 2000-0600 :,Start time: 17/08/2026 20:00 ,End Date:07/09/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:27
Nearest town: 4.83 miles from Cardiff.

51.53--3.25

Description: M4 : Eastbound : J26 (Newport) 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: 14/08/2026 10:30
Nearest town: 11.04 miles from Cardiff.

51.6--3.01

Description: M4 : Westbound : J32 (Cardiff) Coryton : Structural inspections : Entry slip road closed : Diversions in place : 17/08/26-18/08/26 2200-0600 :,Start time: 17/08/2026 22:00 ,End Date:18/08/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 14/08/2026 10:31
Nearest town: 4.83 miles from Cardiff.