Traffic Treharris

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Treharris
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Nearby: PontypriddPorthMerthyr TydfilAberdareCaerphillyEbbw Vale

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FULL SCREEN UPDATED: 16:55

Current traffic around Treharris

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

J32 CORYTON

Description: M4EastboundJ32 (Cardiff) CorytonoffslipCongestionDelay: s possible :, Start time: 28/04/2026 16:28 , Expected end time: 28/04/2026 19:28, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:28
Nearest town: 10.04 miles from Treharris.

TAFF'S WELL TO CORYTON INTERCHANGE

Description: A470SouthboundTaffs Well to Coryton InterchangeCongestionDelay: s possible :, Start time: 28/04/2026 16:33 , Expected end time: 28/04/2026 19:33, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:33
Nearest town: 9.59 miles from Treharris.

CORYTON TO NANTGARW

Description: A470NorthboundCoryton to NantgarwCongestionDelay: s possible :, Start time: 28/04/2026 16:12 , Expected end time: 28/04/2026 19:12, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:12
Nearest town: 8.72 miles from Treharris. CLEARED @ 16:18

J24 COLDRA TO J26 MALPAS

Description: M4WestboundJ24 (Newport) Coldra to J26 (Newport) MalpasCongestionDelay: s possible :, Start time: 28/04/2026 16:00 , Expected end time: 28/04/2026 20:00, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:00
Nearest town: 15.81 miles from Treharris. CLEARED @ 16:06

NANTGARW

Description: A470NorthboundNantgarwCongestionoffslipDelay: s possible :, Start time: 28/04/2026 16:03 , Expected end time: 28/04/2026 19:03, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:03
Nearest town: 7.34 miles from Treharris. CLEARED @ 16:06

A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERN

Description: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestionDelay: s possible :, Start time: 28/04/2026 15:26 , Expected end time: 28/04/2026 18:26, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 15:26
Nearest town: 12.17 miles from Treharris. CLEARED @ 15:42

WESTBOUND

Description: A40EastboundWestboundAbergavenny Hardwick R/bout to Abergavenny04/03/26-25/06/26 0930-1530RoadworksSTOP/GO in use :, Start time: 04/03/2026 9:30 , End Date: 25/06/2026 15:30, Severity: Moderate, Source: Welsh Government, Last updated: 03/04/2026 11:10
Nearest town: 16.7 miles from Treharris. CLEARED @ 14:18

J39 GROES

Description: M4WestboundJ39 GroesEntry slip road closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19.58 miles from Treharris. CLEARED @ 12:30

J25A GROVE PARK TO J26 MALPAS

Description: M4Both directionsJ25A (Newport) Grove Park to J26 (Newport) MalpasRoadworksRoad closedDiversions in place29/04/26-01/05/26 2000-0600 :, Start time: 29/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:36
Nearest town: 14.39 miles from Treharris. CLEARED @ 12:18

J32 CORYTON

Description: M4EastboundJ32 (Cardiff) CorytonExit slip road closedDiversions in place27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.04 miles from Treharris. CLEARED @ 12:18

J33 CAPEL LLANILLTERN TO J32 CORYTON

Description: M4EastboundJ33 (Cardiff) Capel Llanilltern to J32 (Cardiff) CorytonResurfacing workRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.3 miles from Treharris. CLEARED @ 12:18

J35 PENCOED

Description: M4WestboundJ35 (Pen-coed) PencoedExit slip road closedDiversions in place27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 13.07 miles from Treharris. CLEARED @ 12:18

BRYNMAWR

Description: A465WestboundBrynmawrExit slip road closedDiversions in place28/04/26-29/04/26 2000-0600 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:25
Nearest town: 11.57 miles from Treharris. CLEARED @ 12:06

CORYTON

Description: A470NorthboundCorytonEntry slip road closedDiversions in place29/04/26-30/04/26 2000-0100 :, Start time: 29/04/2026 20:00 , End Date: 30/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:27
Nearest town: 9.93 miles from Treharris. CLEARED @ 12:06

TAFF'S WELL

Description: A470NorthboundTaffs WellRoadworksRoad closedDiversions in placeEntry slip road closed28/04/26-29/04/26 2000-0100 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 7:54
Nearest town: 9.15 miles from Treharris. CLEARED @ 12:06

M4 J33 CAPEL LLANILLTERN

Description: A4232EastboundM4 J33 Capel LlanillternRoadworksExit slip road closed27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.97 miles from Treharris. CLEARED @ 11:54

There are no current incidents in this location.

Roadworks

Traffic in Nearby Villages

Taff Merthyr Garden Village (0.62mi)
Trelewis (0.62mi)
Quaker's Yard (0.62mi)
Craig Berthlwyd (0.62mi)
Melin Caiach (0.88mi)
Pentwyn Berthlwyd (0.88mi)
Edwardsville (0.88mi)
Mount Pleasant (1.39mi)
Llancaiach (1.39mi)
Ynysboeth (1.39mi)
Abercynon (1.39mi)
Ynysowen (1.75mi)
Merthyr Vale (1.75mi)
Nelson (1.76mi)
Cwmfelin (1.86mi)
Tyntetown (1.96mi)
Tai'r heol (1.96mi)
Aberfan (2.24mi)
Carnetown (2.24mi)
Penrhiwceiber (2.48mi)
Perthcelyn (2.48mi)
Bedlinog (2.48mi)
Newtown (2.56mi)
Penybryn (2.56mi)

Treharris

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Description: M4 : Eastbound : J32 (Cardiff) Coryton : offslip : Congestion : Delays possible :, Start time: 28/04/2026 16:28 , Expected end time: 28/04/2026 19:28, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:28
Nearest town: 10.04 miles from Treharris.

51.53--3.25

Description: A470 : Southbound : Taffs Well to Coryton Interchange : Congestion : Delays possible :, Start time: 28/04/2026 16:33 , Expected end time: 28/04/2026 19:33, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:33
Nearest town: 9.59 miles from Treharris.

51.53--3.25

Description: A470 : Northbound : Coryton to Nantgarw : Congestion : Delays possible :, Start time: 28/04/2026 16:12 , Expected end time: 28/04/2026 19:12, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:12
Nearest town: 8.72 miles from Treharris.

51.54--3.26

Description: M4 : Westbound : J24 (Newport) Coldra to J26 (Newport) Malpas : Congestion : Delays possible :, Start time: 28/04/2026 16:00 , Expected end time: 28/04/2026 20:00, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:00
Nearest town: 15.81 miles from Treharris.

51.6--2.96

Description: A470 : Northbound : Nantgarw : Congestion : offslip : Delays possible :, Start time: 28/04/2026 16:03 , Expected end time: 28/04/2026 19:03, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 16:03
Nearest town: 7.34 miles from Treharris.

51.56--3.27

Description: A4232 : Northbound : A48 Interchange to M4 J33 Capel Llanilltern : Congestion : Delays possible :, Start time: 28/04/2026 15:26 , Expected end time: 28/04/2026 18:26, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 15:26
Nearest town: 12.17 miles from Treharris.

51.49--3.29

Description: A40 : Eastbound : Westbound : Abergavenny Hardwick R/bout to Abergavenny : 04/03/26-25/06/26 0930-1530 : Roadworks : STOP/GO in use :, Start time: 04/03/2026 9:30 , End Date: 25/06/2026 15:30, Severity: Moderate, Source: Welsh Government, Last updated: 03/04/2026 11:10
Nearest town: 16.7 miles from Treharris.

51.82--3.01

Description: M4 : Westbound : J39 Groes : Entry slip road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19.58 miles from Treharris.

51.57--3.75

Description: M4 : Both directions : J25A (Newport) Grove Park to J26 (Newport) Malpas : Roadworks : Road closed : Diversions in place : 29/04/26-01/05/26 2000-0600 :, Start time: 29/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:36
Nearest town: 14.39 miles from Treharris.

51.6--3

Description: M4 : Eastbound : J32 (Cardiff) Coryton : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.04 miles from Treharris.

51.53--3.25

Description: M4 : Eastbound : J33 (Cardiff) Capel Llanilltern to J32 (Cardiff) Coryton : Resurfacing work : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.3 miles from Treharris.

51.52--3.28

Description: M4 : Westbound : J35 (Pen-coed) Pencoed : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 13.07 miles from Treharris.

51.51--3.5

Description: A465 : Westbound : Brynmawr : Exit slip road closed : Diversions in place : 28/04/26-29/04/26 2000-0600 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:25
Nearest town: 11.57 miles from Treharris.

51.8--3.17

Description: A470 : Northbound : Coryton : Entry slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0100 :, Start time: 29/04/2026 20:00 , End Date: 30/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:27
Nearest town: 9.93 miles from Treharris.

51.53--3.25

Description: A470 : Northbound : Taffs Well : Roadworks : Road closed : Diversions in place : Entry slip road closed : 28/04/26-29/04/26 2000-0100 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 7:54
Nearest town: 9.15 miles from Treharris.

51.54--3.26

Description: A4232 : Eastbound : M4 J33 Capel Llanilltern : Roadworks : Exit slip road closed : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 10.97 miles from Treharris.

51.51--3.31

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