Traffic Merthyr Tydfil

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Merthyr Tydfil
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Nearby: Merthyr TydfilAberdareEbbw ValePorthPontypriddBlaenavon

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FULL SCREEN UPDATED: 18:57

Current traffic around Merthyr Tydfil

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

NORTHBOUND

Description: A4232Now clearNorthboundA48 Interchange, Start time: 14/03/2026 15:19 , Expected end time: 14/03/2026 15:24, Severity: Severe, Source: Welsh Government, Last updated: 14/03/2026 15:19
Nearest town: 19.97 miles from Merthyr Tydfil. CLEARED @ 16:42

SOUTHBOUND

Description: A4232Now clearSouthboundM4 J33 Capel Llanilltern to A48 Interchange, Start time: 14/03/2026 15:06 , Expected end time: 14/03/2026 15:11, Severity: Moderate, Source: Welsh Government, Last updated: 14/03/2026 15:06
Nearest town: 18.47 miles from Merthyr Tydfil. CLEARED @ 16:30

J37 PYLE TO J42 EARLSWOOD

Description: M4Both directionsJ37 (Porthcawl) Pyle to J42 (Swansea) EarlswoodCyclic maintenance1 lane closed on M4Entry/Exit slip roads closedDiversions in place25/01/26-01/04/26 2000-0600 :, Start time: 25/01/2026 20:00 , End Date: 01/04/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 25/01/2026 20:00
Nearest town: 19.93 miles from Merthyr Tydfil. CLEARED @ 15:18

J36 SARN

Description: M4EastboundJ36 (Bridgend) SarnCyclic maintenanceOnslip closedDiversions in place02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 02/03/2026 20:00
Nearest town: 17.16 miles from Merthyr Tydfil. CLEARED @ 15:18

J36 SARN

Description: M4EastboundJ36 (Bridgend) SarnRoadworksEntry slip road closedDiversions in place02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:20
Nearest town: 17.16 miles from Merthyr Tydfil. CLEARED @ 15:18

J40 TAIBACH

Description: M4EastboundJ40 (Port Talbot) TaibachRoadworksExit slip road closedDiversions in place02/03/26-21/03/26 0600 :, Start time: 02/03/2026 6:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:26
Nearest town: 19.9 miles from Merthyr Tydfil. CLEARED @ 15:18

There are no current incidents in this location.

Roadworks

Traffic in Nearby Villages

Pen y Darren (0.35mi)
Gurnos (0.45mi)
Galon Uchaf (0.9mi)
Twynyrodyn (1.03mi)
Heolgerrig (1.06mi)
Pant (1.22mi)
Cefn coed y cymmer (1.32mi)
Trefechan (1.32mi)
Ffos y fran (1.32mi)
Dowlais (1.5mi)
Gellideg (1.63mi)
Clwydyfagwyr (1.66mi)
Dowlais Top (1.72mi)
Vaynor (2.14mi)
Abercanaid (2.25mi)
Pentrebach (2.4mi)
Pontsticill (2.74mi)
Taff Fechan (3.04mi)
Troedyrhiw (3.22mi)
Fochriw (3.49mi)
Llwyn on Village (3.53mi)
Tre Gibbon (3.61mi)
Tre Ifor (3.61mi)
Robertstown (3.63mi)

Merthyr Tydfil

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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: A4232 : Now clear : Northbound : A48 Interchange, Start time: 14/03/2026 15:19 , Expected end time: 14/03/2026 15:24, Severity: Severe, Source: Welsh Government, Last updated: 14/03/2026 15:19
Nearest town: 19.97 miles from Merthyr Tydfil.

51.47--3.27

Description: A4232 : Now clear : Southbound : M4 J33 Capel Llanilltern to A48 Interchange, Start time: 14/03/2026 15:06 , Expected end time: 14/03/2026 15:11, Severity: Moderate, Source: Welsh Government, Last updated: 14/03/2026 15:06
Nearest town: 18.47 miles from Merthyr Tydfil.

51.49--3.29

Description: M4 : Both directions : J37 (Porthcawl) Pyle to J42 (Swansea) Earlswood : Cyclic maintenance : 1 lane closed on M4 : Entry/Exit slip roads closed : Diversions in place : 25/01/26-01/04/26 2000-0600 :, Start time: 25/01/2026 20:00 , End Date: 01/04/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 25/01/2026 20:00
Nearest town: 19.93 miles from Merthyr Tydfil.

51.58--3.76

Description: M4 : Eastbound : J36 (Bridgend) Sarn : Cyclic maintenance : Onslip closed : Diversions in place : 02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 02/03/2026 20:00
Nearest town: 17.16 miles from Merthyr Tydfil.

51.53--3.58

Description: M4 : Eastbound : J36 (Bridgend) Sarn : Roadworks : Entry slip road closed : Diversions in place : 02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:20
Nearest town: 17.16 miles from Merthyr Tydfil.

51.53--3.58

Description: M4 : Eastbound : J40 (Port Talbot) Taibach : Roadworks : Exit slip road closed : Diversions in place : 02/03/26-21/03/26 0600 :, Start time: 02/03/2026 6:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:26
Nearest town: 19.9 miles from Merthyr Tydfil.

51.59--3.77

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