Traffic Cefn

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Current traffic around Cefn

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

ST FAGANS TO M4 J33 CAPEL LLANILLTERN
Description: A4232NorthboundSt Fagans to M4 J33 Capel LlanillternCongestionDelay: s possible :, Start time: 25/11/2025 14:23 , Expected end time: 25/11/2025 15:53, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 14:23
Nearest town: 12.07 miles from Cefn. CLEARED @ 14:30
SOUTHBOUND
Description: A470Now clearSouthboundNantgarw to Coryton, Start time: 25/11/2025 10:26 , Expected end time: 25/11/2025 10:31, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:26
Nearest town: 9.38 miles from Cefn. CLEARED @ 11:42
NORTHBOUND
Description: A4232Now clearNorthboundSt Fagans to M4 J33 Capel Llanilltern, Start time: 25/11/2025 10:25 , Expected end time: 25/11/2025 10:30, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:25
Nearest town: 12.07 miles from Cefn. CLEARED @ 11:42
EASTBOUND
Description: M4Now clearEastboundJ33 (Cardiff) Capel Llanilltern, Start time: 25/11/2025 10:28 , Expected end time: 25/11/2025 10:33, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:28
Nearest town: 12.19 miles from Cefn. CLEARED @ 11:42
NORTHBOUND
Description: A470Now clearNorthboundNantgarw, Start time: 25/11/2025 10:28 , Expected end time: 25/11/2025 10:33, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:28
Nearest town: 9.38 miles from Cefn. CLEARED @ 11:42
J32 CORYTON
Description: M4WestboundJ32 (Cardiff) CorytonOnslip closed27/11/25-28/11/25 2000-0600 :, Start time: 27/11/2025 20:00 , End Date: 28/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/11/2025 14:29
Nearest town: 9.17 miles from Cefn.
NANTGARW
Description: A470NorthboundNantgarwOnslip closedOvernight24/11/25-03/12/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 03/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 9.38 miles from Cefn.
UPPER BOAT
Description: A470NorthboundUpper BoatOnslip closedOvernight24/11/25-03/12/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 03/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 10.03 miles from Cefn.
J28 TREDEGAR PARK
Description: M4EastboundJ28 (Newport) Tredegar ParkOnslip closed27/11/25-28/11/25 2000-0500 :, Start time: 27/11/2025 20:00 , End Date: 28/11/2025 5:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/11/2025 14:22
Nearest town: 1.39 miles from Cefn.
LLANWENARTH TO ABERGAVENNY
Description: A40EastboundLlanwenarth to AbergavennyCarriageway maintenanceRoad closedDiversions in place27/11/25 0930-1530 :, Start time: 27/11/2025 9:30 , End Date: 27/11/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 23/11/2025 13:30
Nearest town: 16.63 miles from Cefn. CLEARED @ 13:54
M4 J33 CAPEL LLANILLTERN
Description: A4232EastboundM4 J33 Capel LlanillternCarriageway maintenanceRoad closedDiversions in place24/11/25-29/11/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 29/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 12.25 miles from Cefn. CLEARED @ 13:54
UPPER BOAT
Description: A470SouthboundUpper BoatCarriageway maintenanceOnslip closed25/11/25-28/11/25 2000-0600 :, Start time: 25/11/2025 20:00 , End Date: 28/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 15:08
Nearest town: 10.03 miles from Cefn. CLEARED @ 13:54
PENTREBACH TO A470 ABERCANAID
Description: A4060Both directionsPentrebach to A470 AbercanaidRoadworksClosedDiversions in place27/10/25-19/12/25 2000-0600 :, Start time: 27/10/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/11/2025 7:53
Nearest town: 16.03 miles from Cefn. CLEARED @ 11:18
CONGESTION
Location: The M49 southbound between the junctions with the M4 and the M5 .
Reason: Congestion.
Status: Currently Active.
Return to normal: Normal traffic conditions are expected between 10:15 and 10:30 on 25 Nov 2025.
Delay: There are currently delays of 10 minutes against expected traffic.
Nearest town: 17.58 miles from Cefn. CLEARED @ 10:31
CONGESTION
Location: The M5 northbound exit slip at junction J17 (Bristol West) .
Reason: Congestion.
Status: Currently Active.
Return to normal: Normal traffic conditions are expected between 09:00 and 09:15 on 25 Nov 2025.
Delay: There are currently delays of 10 minutes against expected traffic.
Nearest town: 19.43 miles from Cefn. CLEARED @ 09:10


There are no current incidents in this location.

Roadworks

ROAD WORKS
Location: The M5 southbound between junctions J17 (Bristol West) and J18 (Bristol) .
Lane closures: The hard shoulder is closed.
Reason: Horticultural works.
Status: Currently Active.
Period: expect disruption until 16:00 on 23 Dec 2025.
Nearest town: 18.83 miles from Cefn.
ROAD WORKS
Location: The M49 northbound between the M5 and the junction with the M4 .
Reason: Roadworks scheme.
Status: Currently Active.
Period: from 20:05 on 24 Nov 2025 to 06:00 on 13 Dec 2025.
Nearest town: 17.91 miles from Cefn.
ROAD WORKS
Location: The M5 southbound entry slip at junction J18 (Bristol) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 09:00 on 26 Nov 2025 to 18:00 on 26 Nov 2025.
Nearest town: 17.13 miles from Cefn.
ROAD WORKS
Location: The M5 southbound entry slip at junction J21 (Weston super Mare) .
Lane closures: Lane one will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 21:00 on 27 Nov 2025 to 06:00 on 28 Nov 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.22 miles from Cefn.
ROAD WORKS
Location: The M5 southbound between junctions J20 (Nailsea) and J21 (Weston super Mare) .
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 21:00 on 27 Nov 2025 to 06:00 on 28 Nov 2025.
Nearest town: 16.56 miles from Cefn.
ROAD WORKS
Location: The M5 southbound between junctions J20 (Nailsea) and J22 (Burnham on Sea) .
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 1 Dec 2025 to 3 Dec 2025.
Schedule: From 21:00 on 3 Dec 2025 to 06:00 on 4 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 15.81 miles from Cefn.
ROAD WORKS
Location: The M5 northbound between junctions J19 (Portishead) and J18 (Bristol) .
Lane closures: Lanes 2, 3 and 4 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 30 Nov 2025 to 06:00 on 1 Dec 2025.
Schedule: From 21:00 on 2 Dec 2025 to 06:00 on 3 Dec 2025.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 16.75 miles from Cefn.
ROAD WORKS
Location: The M5 northbound at junction J19 (Portishead) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 30 Nov 2025 to 06:00 on 1 Dec 2025.
Schedule: From 21:00 on 2 Dec 2025 to 06:00 on 3 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 16.49 miles from Cefn.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea) and J19 (Portishead) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 30 Nov 2025 to 4 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 15.65 miles from Cefn.
ROAD WORKS
Location: The M49 southbound between the junctions with the M4 and the M5 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 28 Nov 2025 to 06:00 on 29 Nov 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.55 miles from Cefn.
ROAD WORKS
Location: The junction of the M5 J18 (Bristol) and the M49 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 28 Nov 2025 to 06:00 on 29 Nov 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 17.61 miles from Cefn.
ROAD WORKS
Location: The M5 southbound exit slip at junction J18 (Bristol) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 28 Nov 2025 to 06:00 on 29 Nov 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.73 miles from Cefn.
ROAD WORKS
Location: The M5 southbound between junctions J17 (Bristol West) and J18 (Bristol) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 28 Nov 2025 to 06:00 on 29 Nov 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 17.8 miles from Cefn.
ROAD WORKS
Location: The M48 westbound between the M4 and junction J1 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 27 Nov 2025 to 29 Nov 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 19.24 miles from Cefn.
ROAD WORKS
Location: The M49 southbound between the junctions with the M4 and the M5 .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 27 Nov 2025 to 29 Nov 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.54 miles from Cefn. CLEARED @ 13:30
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 27 Nov 2025 to 06:00 on 28 Nov 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 17.8 miles from Cefn.
ROAD WORKS
Location: The M49 southbound between the M4 and the junction with the M5 .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 27 Nov 2025 to 06:00 on 13 Dec 2025.
Nearest town: 17.75 miles from Cefn.
ROAD WORKS
Location: The M49 southbound between the M4 and the junction with the M5 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 27 Nov 2025 to 29 Nov 2025.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 1 Dec 2025 to 5 Dec 2025.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 9 Dec 2025 to 11 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.75 miles from Cefn.
ROAD WORKS
Location: The M49 southbound between the M4 and the junction with the M5 .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 11 Dec 2025 to 13 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.75 miles from Cefn.
ROAD WORKS
Location: The M49 northbound between the M5 and the junction with the M4 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 25 Nov 2025 to 27 Nov 2025.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 2 Dec 2025 to 6 Dec 2025.
Schedule: From 20:00 on 8 Dec 2025 to 06:00 on 9 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.91 miles from Cefn.
ROAD WORKS
Location: The M49 northbound between the M5 and the junction with the M4 .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 11 Dec 2025 to 13 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.91 miles from Cefn.
ROAD WORKS
Location: The M5 southbound between junctions J21 (Weston super Mare) and J22 (Burnham on Sea) .
Lane closures: The hard shoulder is closed.
Reason: Roadside Drains Works.
Status: Currently Active.
Period: expect disruption until 16:00 on 25 Nov 2025.
Nearest town: 18.64 miles from Cefn.
ROAD WORKS
Location: The M5 northbound at junction J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Emergency roadside drains works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 25 Nov 2025 to 28 Mar 2026.
Schedule: From 20:00 on 28 Mar 2026 to 04:00 on 29 Mar 2026.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 29 Mar 2026 to 1 Apr 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 14.12 miles from Cefn.
ROAD WORKS
Location: The M5 northbound between junctions J19 (Portishead) and J18 (Bristol) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 25 Nov 2025 to 28 Nov 2025.
Schedule: Expect disruption everyday between 19:00 and 07:00 from 28 Nov 2025 to 30 Nov 2025.
Schedule: From 21:00 on 1 Dec 2025 to 06:00 on 2 Dec 2025.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 3 Dec 2025 to 5 Dec 2025.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 16.75 miles from Cefn.
ROAD WORKS
Location: The M5 northbound at junction J19 (Portishead) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 25 Nov 2025 to 28 Nov 2025.
Schedule: Expect disruption everyday between 19:00 and 07:00 from 28 Nov 2025 to 30 Nov 2025.
Schedule: From 21:00 on 1 Dec 2025 to 06:00 on 2 Dec 2025.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 3 Dec 2025 to 5 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.49 miles from Cefn.

Traffic in Nearby Villages

Cefn

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Description: A4232 : Northbound : St Fagans to M4 J33 Capel Llanilltern : Congestion : Delays possible :, Start time: 25/11/2025 14:23 , Expected end time: 25/11/2025 15:53, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 14:23
Nearest town: 12.07 miles from Cefn.

51.5--3.29

Description: A470 : Now clear : Southbound : Nantgarw to Coryton, Start time: 25/11/2025 10:26 , Expected end time: 25/11/2025 10:31, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:26
Nearest town: 9.38 miles from Cefn.

51.54--3.26

Description: A4232 : Now clear : Northbound : St Fagans to M4 J33 Capel Llanilltern, Start time: 25/11/2025 10:25 , Expected end time: 25/11/2025 10:30, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:25
Nearest town: 12.07 miles from Cefn.

51.5--3.29

Description: M4 : Now clear : Eastbound : J33 (Cardiff) Capel Llanilltern, Start time: 25/11/2025 10:28 , Expected end time: 25/11/2025 10:33, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:28
Nearest town: 12.19 miles from Cefn.

51.51--3.31

Description: A470 : Now clear : Northbound : Nantgarw, Start time: 25/11/2025 10:28 , Expected end time: 25/11/2025 10:33, Severity: Moderate, Source: Welsh Government, Last updated: 25/11/2025 10:28
Nearest town: 9.38 miles from Cefn.

51.56--3.27

Description: M4 : Westbound : J32 (Cardiff) Coryton : Onslip closed : 27/11/25-28/11/25 2000-0600 :, Start time: 27/11/2025 20:00 , End Date: 28/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/11/2025 14:29
Nearest town: 9.17 miles from Cefn.

51.53--3.25

Description: A470 : Northbound : Nantgarw : Onslip closed : Overnight : 24/11/25-03/12/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 03/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 9.38 miles from Cefn.

51.56--3.27

Description: A470 : Northbound : Upper Boat : Onslip closed : Overnight : 24/11/25-03/12/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 03/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 10.03 miles from Cefn.

51.58--3.29

Description: M4 : Eastbound : J28 (Newport) Tredegar Park : Onslip closed : 27/11/25-28/11/25 2000-0500 :, Start time: 27/11/2025 20:00 , End Date: 28/11/2025 5:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/11/2025 14:22
Nearest town: 1.39 miles from Cefn.

51.57--3.03

Description: A40 : Eastbound : Llanwenarth to Abergavenny : Carriageway maintenance : Road closed : Diversions in place : 27/11/25 0930-1530 :, Start time: 27/11/2025 9:30 , End Date: 27/11/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 23/11/2025 13:30
Nearest town: 16.63 miles from Cefn.

51.83--3.04

Description: A4232 : Eastbound : M4 J33 Capel Llanilltern : Carriageway maintenance : Road closed : Diversions in place : 24/11/25-29/11/25 2000-0600 :, Start time: 24/11/2025 20:00 , End Date: 29/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 20:00
Nearest town: 12.25 miles from Cefn.

51.51--3.31

Description: A470 : Southbound : Upper Boat : Carriageway maintenance : Onslip closed : 25/11/25-28/11/25 2000-0600 :, Start time: 25/11/2025 20:00 , End Date: 28/11/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/11/2025 15:08
Nearest town: 10.03 miles from Cefn.

51.58--3.29

Description: A4060 : Both directions : Pentrebach to A470 Abercanaid : Roadworks : Closed : Diversions in place : 27/10/25-19/12/25 2000-0600 :, Start time: 27/10/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/11/2025 7:53
Nearest town: 16.03 miles from Cefn.

51.72--3.36

Location: southbound between the junctions with the M4 and the M5 .

Due to: Congestion.



Normal traffic conditions are expected between 10:15 and 10:30 on 25 November 2025.

Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 17.58 miles from Cefn.

51.52--2.66

Location: northbound exit slip at junction J17 (Bristol West) .

Due to: Congestion.



Normal traffic conditions are expected between 09:00 and 09:15 on 25 November 2025.

Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 19.43 miles from Cefn.

51.53--2.61

Location: southbound between junctions J17 (Bristol West) and J18 (Bristol) .

Lane Closures : The hard shoulder is closed.

Due to: Horticultural works.



Period : expect disruption until 16:00 on 23 December 2025.
Nearest town: 18.83 miles from Cefn.

51.52--2.63

Location: northbound between the M5 and the junction with the M4 .

Due to: Roadworks scheme.



Period : from 20:05 on 24 November 2025 to 06:00 on 13 December 2025.
Nearest town: 17.91 miles from Cefn.

51.53--2.65

Location: southbound entry slip at junction J18 (Bristol) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 09:00 on 26 November 2025 to 18:00 on 26 November 2025.
Nearest town: 17.13 miles from Cefn.

51.5--2.68

Location: southbound entry slip at junction J21 (Weston super Mare) .

Lane Closures : Lane one will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 21:00 on 27 November 2025 to 06:00 on 28 November 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.22 miles from Cefn.

51.36--2.89

Location: southbound between junctions J20 (Nailsea) and J21 (Weston super Mare) .

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 21:00 on 27 November 2025 to 06:00 on 28 November 2025.
Nearest town: 16.56 miles from Cefn.

51.37--2.89

Location: southbound between junctions J20 (Nailsea) and J22 (Burnham on Sea) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 December 2025 to 3 December 2025.

Schedule : From 21:00 on 3 December 2025 to 06:00 on 4 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.81 miles from Cefn.

51.39--2.86

Location: northbound between junctions J19 (Portishead) and J18 (Bristol) .

Lane Closures : Lanes 2, 3 and 4 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 30 November 2025 to 06:00 on 1 December 2025.

Schedule : From 21:00 on 2 December 2025 to 06:00 on 3 December 2025.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.75 miles from Cefn.

51.48--2.71

Location: northbound at junction J19 (Portishead) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 30 November 2025 to 06:00 on 1 December 2025.

Schedule : From 21:00 on 2 December 2025 to 06:00 on 3 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.49 miles from Cefn.

51.48--2.71

Location: northbound between junctions J20 (Nailsea) and J19 (Portishead) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 30 November 2025 to 4 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.65 miles from Cefn.

51.46--2.75

Location: southbound between the junctions with the M4 and the M5 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 28 November 2025 to 06:00 on 29 November 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.55 miles from Cefn.

51.51--2.66

Location: The junction of the M5 J18 (Bristol) and the M49 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 28 November 2025 to 06:00 on 29 November 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.61 miles from Cefn.

51.5--2.67

Location: southbound exit slip at junction J18 (Bristol) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 28 November 2025 to 06:00 on 29 November 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.73 miles from Cefn.

51.51--2.66

Location: southbound between junctions J17 (Bristol West) and J18 (Bristol) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 28 November 2025 to 06:00 on 29 November 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.8 miles from Cefn.

51.51--2.66

Location: westbound between the M4 and junction J1 (Avonmouth) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 November 2025 to 29 November 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.24 miles from Cefn.

51.6--2.61

Location: southbound between the junctions with the M4 and the M5 .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 November 2025 to 29 November 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.54 miles from Cefn.

51.51--2.67

Location: westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 27 November 2025 to 06:00 on 28 November 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 17.8 miles from Cefn.

51.57--2.64

Location: southbound between the M4 and the junction with the M5 .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 27 November 2025 to 06:00 on 13 December 2025.
Nearest town: 17.75 miles from Cefn.

51.55--2.65

Location: southbound between the M4 and the junction with the M5 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 27 November 2025 to 29 November 2025.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 December 2025 to 5 December 2025.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 9 December 2025 to 11 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.75 miles from Cefn.

51.55--2.65

Location: southbound between the M4 and the junction with the M5 .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 December 2025 to 13 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.75 miles from Cefn.

51.55--2.65

Location: northbound between the M5 and the junction with the M4 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 25 November 2025 to 27 November 2025.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 2 December 2025 to 6 December 2025.

Schedule : From 20:00 on 8 December 2025 to 06:00 on 9 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.91 miles from Cefn.

51.53--2.65

Location: northbound between the M5 and the junction with the M4 .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 December 2025 to 13 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.91 miles from Cefn.

51.53--2.65

Location: southbound between junctions J21 (Weston super Mare) and J22 (Burnham on Sea) .

Lane Closures : The hard shoulder is closed.

Due to: Roadside Drains Works.



Period : expect disruption until 16:00 on 25 November 2025.
Nearest town: 18.64 miles from Cefn.

51.34--2.89

Location: northbound at junction J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Emergency roadside drains works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 25 November 2025 to 28 March 2026.

Schedule : From 20:00 on 28 March 2026 to 04:00 on 29 March 2026.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 29 March 2026 to 1 April 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.12 miles from Cefn.

51.43--2.84

Location: northbound between junctions J19 (Portishead) and J18 (Bristol) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 25 November 2025 to 28 November 2025.

Schedule : Expect disruption everyday between 19:00 and 07:00 from 28 November 2025 to 30 November 2025.

Schedule : From 21:00 on 1 December 2025 to 06:00 on 2 December 2025.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 3 December 2025 to 5 December 2025.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.75 miles from Cefn.

51.48--2.71

Location: northbound at junction J19 (Portishead) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 25 November 2025 to 28 November 2025.

Schedule : Expect disruption everyday between 19:00 and 07:00 from 28 November 2025 to 30 November 2025.

Schedule : From 21:00 on 1 December 2025 to 06:00 on 2 December 2025.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 3 December 2025 to 5 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.49 miles from Cefn.

51.48--2.71