Today’s M4 Travel Disruptions
- No Reported Congestion
Today’s M4 Accident Updates
- No Reported Accidents
Westbound M4 Closures and Roadworks Delays
- M4 westbound within J13 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J12 and J13 . Reason : Roadworks. Status : Currently Active. Period : expect disruption until 06:00 on 2 October 2025. Lanes Closed : All lanes are closed.
West Berkshire Live Travel News
Wed, 01 Oct 2025 19:33:26 GMT - M4 westbound within J12 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J11 and J12 . Reason : Roadworks scheme. Status : Currently Active. Period : from 20:32 on 1 October 2025 to 06:00 on 12 October 2025.
West Berkshire Live Travel News
Wed, 01 Oct 2025 19:32:55 GMT - M4 westbound within J7 | Westbound | Road Works | BuckinghamshireLocation : The M4 westbound between junctions J6 and J7 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Litter clearance is planned. Status : Pending. Schedule : From 20:00 on 8 October 2025 to 06:00 on 9 October 2025. Lanes Closed : There will be two of four lanes closed.
Buckinghamshire Live Travel News
Wed, 01 Oct 2025 19:16:35 GMT - M4 J7 westbound exit | Westbound | Road Works | BuckinghamshireLocation : The M4 westbound exit slip at junction J7 . Lane Closures : Lane one will be closed. Reason : Litter clearance is planned. Status : Pending. Schedule : From 21:00 on 8 October 2025 to 06:00 on 9 October 2025. Lanes Closed : All lanes will be closed.
Buckinghamshire Live Travel News
Wed, 01 Oct 2025 19:16:35 GMT - M4 westbound between J18 and J19 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J18 and J19 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Roadworks. Status : Currently Active. Period : expect disruption until 06:00 on 2 October 2025. Lanes Closed : There is one of three lanes closed.
South Gloucestershire Live Travel News
Wed, 01 Oct 2025 19:01:40 GMT - M4 westbound between J17 and J18 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J17 and J18 . Lane Closures : Lane three is closed. Reason : Roadside Drains Works. Status : Currently Active. Period : expect disruption until 06:00 on 2 October 2025. Lanes Closed : There is one of three lanes closed.
South Gloucestershire Live Travel News
Wed, 01 Oct 2025 19:01:35 GMT - M4 westbound within J12 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J10 and J12 . Reason : Roadworks scheme. Status : Currently Active. Period : from 20:00 on 20 September 2025 to 06:00 on 27 November 2025.
West Berkshire Live Travel News
Wed, 01 Oct 2025 16:58:54 GMT - M4 westbound between J13 and J14 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J13 and J14 . Lane Closures : Lane three will be closed. Reason : Barrier repairs are planned. Status : Pending. Schedule : From 20:00 on 2 October 2025 to 06:00 on 3 October 2025. Lanes Closed : There will be one of three lanes closed.
West Berkshire Live Travel News
Wed, 01 Oct 2025 15:01:55 GMT - M4 westbound between J11 and J12 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J11 and J12 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 11 October 2025 to 06:00 on 12 October 2025. Lanes Closed : There will be one of four lanes closed.
West Berkshire Live Travel News
Wed, 01 Oct 2025 14:52:52 GMT - M4 J12 westbound access | Westbound | Road Works | West BerkshireLocation : The M4 westbound entry slip at junction J12 . Reason : Roadworks are planned. Status : Pending. Schedule : From 21:00 on 1 October 2025 to 06:00 on 2 October 2025. Schedule : Expect disruption everyday between 21:00 and 06:00 from 6 October 2025 to 11 October 2025. Lanes Closed : All lanes will be closed.
West Berkshire Live Travel News
Wed, 01 Oct 2025 14:52:52 GMT - M4 westbound between J17 and J18 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J17 and J18 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 08:00 on 2 October 2025 to 15:00 on 2 October 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Wed, 01 Oct 2025 14:01:43 GMT - M4 westbound between J4 and J4B | Westbound | Road Works | Greater London AuthorityLocation : The M4 westbound between junctions J4 and J4B . Lane Closures : Lane one will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : From 22:00 on 2 October 2025 to 05:30 on 3 October 2025. Schedule : From 23:00 on 3 October 2025 to 06:00 on 4 October 2025. Lanes Closed : There will be one of five lanes closed.
Greater London Authority Live Travel News
Wed, 01 Oct 2025 13:44:56 GMT - M4 westbound within J4B | Westbound | Road Works | SloughLocation : The M4 westbound at junction J4B . Lane Closures : Lane one will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : From 22:00 on 2 October 2025 to 05:30 on 3 October 2025. Schedule : From 23:00 on 3 October 2025 to 06:00 on 4 October 2025. Lanes Closed : There will be one of three lanes closed.
Slough Live Travel News
Wed, 01 Oct 2025 13:44:56 GMT - M4 westbound between J18 and J19 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J18 and J19 . Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 3 October 2025 to 06:00 on 4 October 2025. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025.
South Gloucestershire Live Travel News
Wed, 01 Oct 2025 07:32:07 GMT - M4 westbound between J15 and J16 | Westbound | Road Works | SwindonLocation : The M4 westbound between junctions J14 and J16 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 7 October 2025 to 9 October 2025. Lanes Closed : There will be two of three lanes closed.
Swindon Live Travel News
Tue, 30 Sep 2025 19:12:34 GMT - M4 westbound between J16 and J17 | Westbound | Road Works | WiltshireLocation : The M4 westbound between junctions J16 and J17 . Lane Closures : Lane three will be closed. Reason : Barrier repairs are planned. Status : Pending. Schedule : From 21:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : There will be one of three lanes closed.
Wiltshire Live Travel News
Tue, 30 Sep 2025 14:05:59 GMT - M4 westbound between J13 and J14 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J13 and J14 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : There will be one of three lanes closed.
West Berkshire Live Travel News
Mon, 29 Sep 2025 20:25:11 GMT - M4 westbound between J19 and J20 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J19 and J20 . Lane Closures : Lane one will be closed. Reason : Roadside equipment maintenance is planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Mon, 29 Sep 2025 20:16:01 GMT - M4 westbound within J20 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound at junction J20 . Lane Closures : Lane one will be closed. Reason : Roadside equipment maintenance is planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : There will be one of two lanes closed.
South Gloucestershire Live Travel News
Mon, 29 Sep 2025 20:16:01 GMT - M4 J15 westbound access | Westbound | Road Works | SwindonLocation : The M4 westbound entry slip at junction J15 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : All lanes will be closed.
Swindon Live Travel News
Mon, 29 Sep 2025 20:00:50 GMT - M4 westbound between J15 and J16 | Westbound | Road Works | SwindonLocation : The M4 westbound between junctions J15 and J16 . Reason : Roadworks scheme is planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025.
Swindon Live Travel News
Mon, 29 Sep 2025 20:00:50 GMT - M4 westbound between J15 and J16 | Westbound | Road Works | SwindonLocation : The M4 westbound between junctions J14 and J16 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 6 October 2025 to 06:00 on 7 October 2025. Lanes Closed : There will be two of three lanes closed.
Swindon Live Travel News
Mon, 29 Sep 2025 20:00:50 GMT - M4 westbound between J18 and J19 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J18 and J19 . Reason : Roadworks scheme. Status : Currently Active. Period : from 20:06 on 25 September 2025 to 06:00 on 18 November 2025.
South Gloucestershire Live Travel News
Mon, 29 Sep 2025 10:23:11 GMT - M4 westbound within J18 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J17 and J18 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 08:00 and 15:00 from 6 October 2025 to 9 October 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Mon, 29 Sep 2025 07:12:23 GMT - M4 westbound within J22 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound at junction J22 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 21:00 and 06:00 from 4 October 2025 to 6 October 2025. Lanes Closed : All lanes will be closed.
South Gloucestershire Live Travel News
Sat, 27 Sep 2025 20:12:51 GMT - M4 westbound between J16 and J17 | Westbound | Road Works | WiltshireLocation : The M4 westbound between junctions J16 and J17 . Lane Closures : Lane three will be closed. Reason : Barrier repairs are planned. Status : Pending. Schedule : From 21:00 on 1 October 2025 to 06:00 on 2 October 2025. Lanes Closed : There will be one of three lanes closed.
Wiltshire Live Travel News
Fri, 26 Sep 2025 11:32:09 GMT - M4 westbound within J18 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J17 and J18 . Reason : Roadworks are planned. Status : Pending. Schedule : From 08:00 on 3 October 2025 to 17:00 on 3 October 2025. Schedule : From 08:00 on 10 October 2025 to 17:00 on 10 October 2025.
South Gloucestershire Live Travel News
Fri, 26 Sep 2025 07:11:12 GMT - M4 westbound between J16 and J17 | Westbound | Road Works | WiltshireLocation : The M4 westbound between junctions J16 and J17 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 21:00 on 2 October 2025 to 06:00 on 3 October 2025. Lanes Closed : There will be one of three lanes closed.
Wiltshire Live Travel News
Thu, 25 Sep 2025 20:17:38 GMT - M4 eastbound within J10 before A329(M) westbound access | Eastbound | Road Works | WokinghamLocation : The M4 eastbound at junction J10 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 3 October 2025 to 06:00 on 4 October 2025. Lanes Closed : There will be one of three lanes closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 19:28:19 GMT - link road from A329(M) westbound to M4 J10 westbound | Westbound | Road Works | WokinghamLocation : The M4 westbound entry slip at junction J10 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 21:00 on 3 October 2025 to 06:00 on 4 October 2025. Lanes Closed : All lanes will be closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 19:28:19 GMT - link road from A329(M) westbound to M4 J10 eastbound | Eastbound | Road Works | WokinghamLocation : The M4 eastbound entry slip at junction J10 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 21:00 on 3 October 2025 to 06:00 on 4 October 2025. Lanes Closed : All lanes will be closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 19:28:18 GMT - M4 westbound within J10 before A329(M) eastbound access | Westbound | Road Works | WokinghamLocation : The M4 westbound at junction J10 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 2 October 2025 to 06:00 on 3 October 2025. Lanes Closed : There will be one of three lanes closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 19:28:18 GMT - link road from A329(M) eastbound to M4 J10 westbound | Westbound | Road Works | WokinghamLocation : The M4 westbound entry slip at junction J10 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 21:00 and 06:00 from 2 October 2025 to 4 October 2025. Lanes Closed : All lanes will be closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 19:28:18 GMT - M4 westbound between J11 and J12 | Westbound | Road Works | West BerkshireLocation : The M4 westbound between junctions J11 and J12 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 5 November 2025 to 7 November 2025. Schedule : Expect disruption everyday between 20:00 and 06:00 from 25 November 2025 to 27 November 2025. Lanes Closed : There will be one of four lanes closed.
West Berkshire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 westbound within J12 | Westbound | Road Works | West BerkshireLocation : The M4 westbound at junction J12 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 5 November 2025 to 7 November 2025. Schedule : Expect disruption everyday between 20:00 and 06:00 from 25 November 2025 to 27 November 2025. Lanes Closed : There will be one of three lanes closed.
West Berkshire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 westbound between J10 and J11 | Westbound | Road Works | WokinghamLocation : The M4 westbound between junctions J10 and J11 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 21 November 2025 to 06:00 on 22 November 2025. Schedule : From 20:00 on 24 November 2025 to 06:00 on 25 November 2025. Lanes Closed : There will be one of four lanes closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 westbound between J10 and J11 | Westbound | Road Works | WokinghamLocation : The M4 westbound between junctions J10 and J11 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 7 November 2025 to 06:00 on 8 November 2025. Lanes Closed : There will be two of four lanes closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - link road from A329(M) westbound to M4 J10 westbound | Westbound | Road Works | WokinghamLocation : The M4 westbound entry slip at junction J10 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 21 November 2025 to 06:00 on 22 November 2025. Schedule : From 20:00 on 24 November 2025 to 06:00 on 25 November 2025. Lanes Closed : There will be one of two lanes closed.
Wokingham Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 westbound between J18 and J19 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J18 and J19 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 5 November 2025 to 8 November 2025. Schedule : Expect disruption everyday between 20:00 and 06:00 from 10 November 2025 to 14 November 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 westbound between J18 and J19 | Westbound | Road Works | South GloucestershireLocation : The M4 westbound between junctions J18 and J19 . Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 21 October 2025 to 24 October 2025.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT
Eastbound M4 Closures and Roadworks.
- M4 eastbound between J19 and J18 | Eastbound | Road Works | South GloucestershireLocation : The M4 eastbound between junctions J19 and J18 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 21 October 2025 to 24 October 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 eastbound between J19 and J18 | Eastbound | Road Works | South GloucestershireLocation : The M4 eastbound between junctions J19 and J18 . Reason : Roadworks are planned. Status : Pending. Schedule : From 20:00 on 24 October 2025 to 06:00 on 25 October 2025. Schedule : Expect disruption everyday between 20:00 and 06:00 from 27 October 2025 to 30 October 2025.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 eastbound between J19 and J18 | Eastbound | Road Works | South GloucestershireLocation : The M4 eastbound between junctions J19 and J18 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 October 2025 to 10 October 2025. Schedule : From 20:00 on 13 October 2025 to 06:00 on 14 October 2025. Lanes Closed : There will be one of three lanes closed.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 eastbound between J19 and J18 | Eastbound | Road Works | South GloucestershireLocation : The M4 eastbound between junctions J19 and J18 . Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 14 October 2025 to 18 October 2025. Schedule : From 20:00 on 20 October 2025 to 06:00 on 21 October 2025.
South Gloucestershire Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 J11 eastbound access | Eastbound | Road Works | ReadingLocation : The M4 eastbound entry slip at junction J11 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 20:00 and 06:00 from 20 November 2025 to 22 November 2025. Lanes Closed : There will be one of two lanes closed.
Reading Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT - M4 eastbound between J11 and J10 | Eastbound | Road Works | WokinghamLocation : The M4 eastbound between junctions J12 and J10 . Reason : Roadworks scheme is planned. Status : Pending. Schedule : From 20:00 on 19 November 2025 to 06:00 on 22 November 2025.
Wokingham Live Travel News
Thu, 25 Sep 2025 17:01:10 GMT
Traffic Incidents M4 Wales.
Information supplied direct by Traffic Wales.
- M48 : Both directions : Severn Bridge : 7.5t weight restriction for heavy goods vehicles from 27/05/25-until further noticeDescription: M48 : Both directions : Severn Bridge : 7.5t weight restriction for heavy goods vehicles from 27/05/25-until further notice, Start time: 27/05/2025 0:00 , Expected end time: 23/05/2026 23:55, Severity: Moderate, Source: Welsh Government, Last updated: 03/06/2025 12:42
Travel delays Wales. - M4 : Westbound : J33 Capel Llanilltern : Onslip closed : and roundabout Diversions in place : 01/10/25-02/10/25 2000-0600 :Description: M4 : Westbound : J33 Capel Llanilltern : Onslip closed : and roundabout Diversions in place : 01/10/25-02/10/25 2000-0600 :, Start time: 01/10/2025 20:00 , End Date: 02/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/10/2025 20:00Travel delays Wales.
- M4 : Eastbound : J43 Llandarcy to J42 Earlswood : Road closed : Retaining wall works : Diversions in place : 02/10/25-04/10/25 2000-0600 :Description: M4 : Eastbound : J43 Llandarcy to J42 Earlswood : Road closed : Retaining wall works : Diversions in place : 02/10/25-04/10/25 2000-0600 :, Start time: 02/10/2025 20:00 , End Date: 04/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:44Travel delays Wales.
- M4 : Westbound : J42 Earlswood : Onslip closed : Retaining wall works : Diversions in place : 03/10/25-06/10/25 2000-0600 :Description: M4 : Westbound : J42 Earlswood : Onslip closed : Retaining wall works : Diversions in place : 03/10/25-06/10/25 2000-0600 :, Start time: 03/10/2025 20:00 , End Date: 06/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:42Travel delays Wales.
- M4 : Westbound : J39 Groes : Onslip closed : Roadworks : Diversions in place : 03/10/25-06/10/25 2000-0600 :Description: M4 : Westbound : J39 Groes : Onslip closed : Roadworks : Diversions in place : 03/10/25-06/10/25 2000-0600 :, Start time: 03/10/2025 20:00 , End Date: 06/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:39Travel delays Wales.
- M4 : Westbound : J37 Pyle to J39 Groes : Road closed : Roadworks : Diversions in place : 03/10/25-06/10/25 2200-0600 :Description: M4 : Westbound : J37 Pyle to J39 Groes : Road closed : Roadworks : Diversions in place : 03/10/25-06/10/25 2200-0600 :, Start time: 03/10/2025 22:00 , End Date: 06/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:32Travel delays Wales.
- M4 : Both directions : J23A Magor : Road closed : Electrical work : Diversions in place : 03/10/25-06/10/25 2000-0600 :Description: M4 : Both directions : J23A Magor : Road closed : Electrical work : Diversions in place : 03/10/25-06/10/25 2000-0600 :, Start time: 03/10/2025 20:00 , End Date: 06/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:21Travel delays Wales.
- M4 : Eastbound : J38 Margam to J37 Pyle : Road closed : Roadworks : Diversions in place : 04/10/25-22/11/25 0600 : Contraflow :Description: M4 : Eastbound : J38 Margam to J37 Pyle : Road closed : Roadworks : Diversions in place : 04/10/25-22/11/25 0600 : Contraflow :, Start time: 04/10/2025 6:00 , End Date: 22/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 15:35Travel delays Wales.
- M4 : Eastbound : J33 Capel Llanilltern : Onslip closed : Environmental work : Diversions in place : 05/10/25-06/10/25 2000-0600 :Description: M4 : Eastbound : J33 Capel Llanilltern : Onslip closed : Environmental work : Diversions in place : 05/10/25-06/10/25 2000-0600 :, Start time: 05/10/2025 20:00 , End Date: 06/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2025 14:11Travel delays Wales.
- M4 : Westbound : J37 Pyle : Onslip closed : Structural inspections : Diversions in place : 29/09/25-04/10/25 2000-0600 :Description: M4 : Westbound : J37 Pyle : Onslip closed : Structural inspections : Diversions in place : 29/09/25-04/10/25 2000-0600 :, Start time: 29/09/2025 20:00 , End Date: 04/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 29/09/2025 20:00Travel delays Wales.
- M4 : Westbound : J24 Coldra to J26 Malpas : Road closed : Roadworks : Diversions in place : 20/09/25-10/10/25 2000-0600 :Description: M4 : Westbound : J24 Coldra to J26 Malpas : Road closed : Roadworks : Diversions in place : 20/09/25-10/10/25 2000-0600 :, Start time: 20/09/2025 20:00 , End Date: 10/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 30/09/2025 20:14Travel delays Wales.
- M4 : Westbound : J40 Taibach : Offslip closed : Electrical work : Diversions in place : 01/10/25-02/10/25 2000-0600 :Description: M4 : Westbound : J40 Taibach : Offslip closed : Electrical work : Diversions in place : 01/10/25-02/10/25 2000-0600 :, Start time: 01/10/2025 20:00 , End Date: 02/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/10/2025 20:00Travel delays Wales.
- M4 : Westbound : J33 Capel Llanilltern : Offslip closed : Environmental work : Diversions in place : 01/10/25-03/10/25 2000-0600 :Description: M4 : Westbound : J33 Capel Llanilltern : Offslip closed : Environmental work : Diversions in place : 01/10/25-03/10/25 2000-0600 :, Start time: 01/10/2025 20:00 , End Date: 03/10/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/10/2025 20:00Travel delays Wales.
M4 Motorway Map
Live traffic flow information. Avoid M4 travel congestion and plan a smarter route.
UK Traffic Delays is a reliable source of updated UK travel information. National Highways data obtained under open licence. London travel information is used under license from TfL: Powered by TfL Open Data.
Our website contains public sector travel information licensed under the: Open Government Licence v3.0.
there are terrible traffic queues at m4 jct 8 , not reported on the camera or this website now 17.08 04/03/25
Please could I have a list of traffic accidents and congestion on the m4 in wales to Bristol prior to 1pm on Sat 19/10/24? I need it for insurance purposes, as I missed a flight. Thank you.
I was travelling back on the M4 on Sunday afternoon, after visiting my daughter’s family.
What I want to know is, why didn’t highways team place diversion signage at jnct 13, i.e. BEFORE arriving at Jnct 12.
The nightmare that I was stuck in lasted 5 hours… to go 8 junctions along the M4.
Being in that kind of traffic where you travel at 3 mph for almost 5 hours is not economical, healthy, sensible nor effective.
Whoever thought it was ok to plan it so everyone fell foul of the traffic backlog should lose their job.
I felt like I had jetlag this morning…
Will M4 be closed at Pontabraham on Sunday 3rd September.Also what other roadworks the same day on M4.
On Saturday 19 March at approx midnight, I will drive from London to Windsor on the M4 hoping to exit at junction 6 for Windsor. Will I be able to do this smoothly or will there be deviations on my way to Windsor from London for M4 works on Saturday the 19th of March? Thanks
Will M4 be open, right through from Wales to Heathrow, Friday night to early sat morning, flight to catch
Hi
Please can you confirm is there a diversion set up just before junction 8/9 of the M4 as I need to get on the M4 to travel to Somerset.
please can you put closures on M4 as I have to give news to my hubby who, at present, is driving a coach between Cardiff to Heathrow, or London Victoria or Bristol Airport. Your website is atrocious at trying to find out what is closed, when its closed and its opening hours. We need it in plain speak please to make professional drivers less tense and able to work out if they have to divert.
IS THE ROUNDABOUT STILL CLOSED AT JUNCTION 13 ON M4
M4 5 miles traffic due to a car crash
Thank you for your live update, really useful to know.