Traffic Common Cefn llwyn

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FULL SCREEN UPDATED: 12:34
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Current traffic around Common Cefn llwyn

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

RESURFACING
Location: The M4 eastbound between junctions J20 (Bristol) and J19 (Bristol) .
Lane closures: The hard shoulder is closed.
Reason: Emergency resurfacing.
Status: Currently Active.
Periodfrom 20:10 on 13 Dec 2025 to 06:00 on 15 Dec 2025.
Nearest town: 19.19 miles from Common Cefn llwyn.
J24 COLDRA TO J26 MALPAS
Description: M4WestboundJ24 (Newport) Coldra to J26 (Newport) Malpas15/12/25-16/12/25 2000-0600Maintenance workClosedDiversions in place :, Start time: 15/12/2025 20:00 , End Date: 16/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 12:09
Nearest town: 3.04 miles from Common Cefn llwyn.
CONGESTION
Location: The M4 eastbound entry slip at junction J20 (Bristol) from M5 north.
Reason: Congestion.
Status: Currently Active.
Return to normal: Normal traffic conditions are expected between 12:15 and 12:30 on 14 Dec 2025.
Delay: There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.94 miles from Common Cefn llwyn.
TAFF'S WELL
Description: A470NorthboundTaffs Well15/12/25-16/12/25 2000-0600Maintenance workEntry slip road closedDiversions in place :, Start time: 15/12/2025 20:00 , End Date: 16/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:42
Nearest town: 14.37 miles from Common Cefn llwyn.
UPPER BOAT
Description: A470NorthboundUpper Boat18/12/25-20/12/25 2000-0600Maintenance workEntry slip road closedDiversions in place :, Start time: 18/12/2025 20:00 , End Date: 20/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:45
Nearest town: 14.39 miles from Common Cefn llwyn.
UPPER BOAT
Description: A470NorthboundUpper Boat18/12/25-19/12/25 2000-0600Maintenance workExit slip road closedDiversions in place :, Start time: 18/12/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:48
Nearest town: 14.39 miles from Common Cefn llwyn.
J23 ROGIET TO J22 PILNING/PRINCE OF WALES BRIDGE
Description: M4EastboundJ23 (Chepstow) Rogiet to J22 (Avonmouth) Pilning/Prince of Wales Bridge16/12/25-17/12/25 2000-0600Maintenance workClosedDiversions in place :, Start time: 16/12/2025 20:00 , End Date: 17/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:53
Nearest town: 10.82 miles from Common Cefn llwyn.
J23 ROGIET
Description: M4WestboundJ23 (Chepstow) Rogiet17/12/25-18/12/25 2000-0600Maintenance workClosedDiversions in place :, Start time: 17/12/2025 20:00 , End Date: 18/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 12:03
Nearest town: 7.71 miles from Common Cefn llwyn.
CONGESTION
Location: The M4 eastbound at junction J20 (Bristol) .
Reason: Congestion.
Status: Currently Active.
Return to normal: Normal traffic conditions are expected between 12:15 and 12:30 on 14 Dec 2025.
Delay: There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.75 miles from Common Cefn llwyn.
M4 J33 CAPEL LLANILLTERN
Description: A4232EastboundM4 J33 Capel Llanilltern11/12/25-19/12/25 2000-0600Maintenance workExit slip road closedDiversions in place :, Start time: 11/12/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:38
Nearest town: 17.31 miles from Common Cefn llwyn. CLEARED @ 11:54
PONTARGOTHI
Description: A40Both directionsPontargothi16/12/25-15/12/25 0900-1530BridgeEmergency workClosedDiversions in place16/12/25 0900-1530 :, Start time: 16/12/2025 9:00 , End Date: 16/12/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 12/12/2025 9:03
Nearest town: 9.91 miles from Common Cefn llwyn. CLEARED @ 09:30


There are no current incidents in this location.

Roadworks

ROAD WORKS
Location: The M4 westbound between junctions J20 (Bristol) and J22 (Avonmouth) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 18:00 on 14 Dec 2025.
Nearest town: 18.06 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 18:00 on 14 Dec 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .
Reason: Roadworks scheme.
Status: Currently Active.
Period: from 07:00 on 14 Dec 2025 to 18:00 on 14 Dec 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 18:00 on 14 Dec 2025.
Nearest town: 17.52 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound at junction J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: From 20:00 on 14 Dec 2025 to 01:00 on 15 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.18 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lane four will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 14 Dec 2025 to 06:00 on 15 Dec 2025.
Lanes Closed: There will be one of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.
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 14 Dec 2025.
Nearest town: 16.77 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.22 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 17.52 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound between junctions J15 (Almondsbury) and J14 (Dursley) .
Lane closures: Lane two will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 20:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19.37 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound at junction J15 (Almondsbury) .
Lane closures: Lane two will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 20:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 19.07 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J14 (Dursley) and J15 (Almondsbury) .
Lane closures: Lane three will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 20:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19.5 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound between junctions J21 (Weston super Mare) and J20 (Nailsea) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Nearest town: 19.83 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound between junctions J21 (Weston super Mare) and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19.83 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound entry slip at junction J21 (Weston super Mare) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 19.71 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 01:00 on 15 Dec 2025 to 06:00 on 19 Dec 2025.
Nearest town: 13.99 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 01:00 on 15 Dec 2025 to 06:00 on 19 Dec 2025.
Nearest town: 14.06 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound exit slip at junction J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 13.99 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound entry slip at junction J22 (Avonmouth) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.23 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J16 (Thornbury) and J17 (Bristol West) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 17.84 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 20:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 15.49 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 20:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of four lanes closed.
Nearest town: 15.45 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound at junction J18 (Bristol) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 15 Dec 2025 to 20 Dec 2025.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 5 Jan 2026 to 7 Jan 2026.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 8 Jan 2026 to 10 Jan 2026.
Schedule: From 21:00 on 10 Jan 2026 to 06:00 on 11 Jan 2026.
Lanes Closed: All lanes will be closed.
Nearest town: 15.96 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound at junction J18 (Bristol) .
Lane closures: Lane three will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 15.96 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 15 Dec 2025 to 20 Dec 2025.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 5 Jan 2026 to 7 Jan 2026.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 8 Jan 2026 to 10 Jan 2026.
Schedule: From 21:00 on 10 Jan 2026 to 06:00 on 11 Jan 2026.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound at junction J19 (Portishead) .
Lane closures: Lane three will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 15.9 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lanes 3 and 4 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Nearest town: 14.64 miles from Common Cefn llwyn.
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: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 15.71 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 15.88 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound exit slip at junction J18A (South Wales) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 15.94 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound exit slip at junction J15 (Almondsbury) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 19.2 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound entry slip at junction J20 (Bristol) from M5 south.
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 19.12 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound between junctions J14 (Dursley) and J15 (Almondsbury) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19.4 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound at junction J18 (Bristol) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 17 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 15.79 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 southbound exit slip at junction J18 (Bristol) .
Lane closures: Lane one will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 17 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 15.83 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M48 westbound between the M4 and junction J1 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Nearest town: 16.89 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M48 westbound at junction J1 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 15.52 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M48 westbound between the M4 and junction J1 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 16.89 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound entry slip at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:30 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.2 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 14.42 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound between junctions J20 (Bristol) and J21 (Chepstow) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.06 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound between junctions J20 (Bristol) and J22 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Nearest town: 18.06 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 21:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.57 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound entry slip at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.21 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M48 westbound between junctions J1 (Avonmouth) and J2 (Chepstow) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 21:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 14.87 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 14.38 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: From 20:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 14.93 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound exit slip at junction J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 13.99 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Nearest town: 10.52 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 10.52 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M48 eastbound between junctions J2 (Chepstow) and J1 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 19:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 13.03 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 08:00 on 16 Dec 2025 to 17:00 on 16 Dec 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M4 eastbound at junction J22 (Avonmouth) .
Lane closures: Lane one will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: From 20:00 on 14 Dec 2025 to 01:00 on 15 Dec 2025.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 13.99 miles from Common Cefn llwyn.
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 15 Dec 2025 to 19 Dec 2025.
Schedule: From 22:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 15.92 miles from Common Cefn llwyn.
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 15 Dec 2025 to 19 Dec 2025.
Schedule: From 22:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 15.77 miles from Common Cefn llwyn.
ROAD WORKS
Location: The M5 northbound between junctions J18A (South Wales) and J17 (Bristol West) .
Reason: Horticultural works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 08:00 and 16:00 from 15 Dec 2025 to 19 Dec 2025.
Nearest town: 16.45 miles from Common Cefn llwyn.
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 14 Dec 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: 15.46 miles from Common Cefn llwyn.

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Common Cefn llwyn

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Location: eastbound between junctions J20 (Bristol) and J19 (Bristol) .

Lane Closures : The hard shoulder is closed.

Due to: Emergency resurfacing.



Period : from 20:10 on 13 December 2025 to 06:00 on 15 December 2025.
Nearest town: 19.19 miles from Common Cefn llwyn.

51.55--2.55

Description: M4 : Westbound : J24 (Newport) Coldra to J26 (Newport) Malpas : 15/12/25-16/12/25 2000-0600 : Maintenance work : Closed : Diversions in place :, Start time: 15/12/2025 20:00 , End Date: 16/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 12:09
Nearest town: 3.04 miles from Common Cefn llwyn.

51.6--2.96

Location: eastbound entry slip at junction J20 (Bristol) from M5 north.

Due to: Congestion.



Normal traffic conditions are expected between 12:15 and 12:30 on 14 December 2025.

Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.94 miles from Common Cefn llwyn.

51.55--2.55

Description: A470 : Northbound : Taffs Well : 15/12/25-16/12/25 2000-0600 : Maintenance work : Entry slip road closed : Diversions in place :, Start time: 15/12/2025 20:00 , End Date: 16/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:42
Nearest town: 14.37 miles from Common Cefn llwyn.

51.54--3.26

Description: A470 : Northbound : Upper Boat : 18/12/25-20/12/25 2000-0600 : Maintenance work : Entry slip road closed : Diversions in place :, Start time: 18/12/2025 20:00 , End Date: 20/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:45
Nearest town: 14.39 miles from Common Cefn llwyn.

51.58--3.29

Description: A470 : Northbound : Upper Boat : 18/12/25-19/12/25 2000-0600 : Maintenance work : Exit slip road closed : Diversions in place :, Start time: 18/12/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:48
Nearest town: 14.39 miles from Common Cefn llwyn.

51.58--3.29

Description: M4 : Eastbound : J23 (Chepstow) Rogiet to J22 (Avonmouth) Pilning/Prince of Wales Bridge : 16/12/25-17/12/25 2000-0600 : Maintenance work : Closed : Diversions in place :, Start time: 16/12/2025 20:00 , End Date: 17/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:53
Nearest town: 10.82 miles from Common Cefn llwyn.

51.58--2.74

Description: M4 : Westbound : J23 (Chepstow) Rogiet : 17/12/25-18/12/25 2000-0600 : Maintenance work : Closed : Diversions in place :, Start time: 17/12/2025 20:00 , End Date: 18/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 12:03
Nearest town: 7.71 miles from Common Cefn llwyn.

51.59--2.81

Location: eastbound at junction J20 (Bristol) .

Due to: Congestion.



Normal traffic conditions are expected between 12:15 and 12:30 on 14 December 2025.

Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.75 miles from Common Cefn llwyn.

51.55--2.56

Description: A4232 : Eastbound : M4 J33 Capel Llanilltern : 11/12/25-19/12/25 2000-0600 : Maintenance work : Exit slip road closed : Diversions in place :, Start time: 11/12/2025 20:00 , End Date: 19/12/2025 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 13/12/2025 11:38
Nearest town: 17.31 miles from Common Cefn llwyn.

51.51--3.31

Description: A40 : Both directions : Pontargothi : 16/12/25-15/12/25 0900-1530 : Bridge : Emergency work : Closed : Diversions in place : 16/12/25 0900-1530 :, Start time: 16/12/2025 9:00 , End Date: 16/12/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 12/12/2025 9:03
Nearest town: 9.91 miles from Common Cefn llwyn.

51.77--2.86

Location: westbound between junctions J20 (Bristol) and J22 (Avonmouth) .

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 18:00 on 14 December 2025.
Nearest town: 18.06 miles from Common Cefn llwyn.

51.56--2.57

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

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 18:00 on 14 December 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.

51.57--2.59

Location: eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .

Due to: Roadworks scheme.



Period : from 07:00 on 14 December 2025 to 18:00 on 14 December 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.

51.57--2.59

Location: eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 18:00 on 14 December 2025.
Nearest town: 17.52 miles from Common Cefn llwyn.

51.57--2.58

Location: westbound at junction J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : From 20:00 on 14 December 2025 to 01:00 on 15 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.18 miles from Common Cefn llwyn.

51.57--2.66

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

Lane Closures : Lane four will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 14 December 2025 to 06:00 on 15 December 2025.

Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.

51.5--2.68

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 14 December 2025.
Nearest town: 16.77 miles from Common Cefn llwyn.

51.52--2.63

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

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.

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

51.57--2.58

Location: eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.52 miles from Common Cefn llwyn.

51.57--2.58

Location: northbound between junctions J15 (Almondsbury) and J14 (Dursley) .

Lane Closures : Lane two will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 20:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.37 miles from Common Cefn llwyn.

51.56--2.54

Location: northbound at junction J15 (Almondsbury) .

Lane Closures : Lane two will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 20:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.07 miles from Common Cefn llwyn.

51.55--2.55

Location: southbound between junctions J14 (Dursley) and J15 (Almondsbury) .

Lane Closures : Lane three will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 20:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.5 miles from Common Cefn llwyn.

51.56--2.53

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

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 19 December 2025 to 06:00 on 20 December 2025.
Nearest town: 19.83 miles from Common Cefn llwyn.

51.36--2.89

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

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.83 miles from Common Cefn llwyn.

51.36--2.89

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

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 19.71 miles from Common Cefn llwyn.

51.36--2.89

Location: eastbound at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 01:00 on 15 December 2025 to 06:00 on 19 December 2025.
Nearest town: 13.99 miles from Common Cefn llwyn.

51.57--2.66

Location: westbound at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 01:00 on 15 December 2025 to 06:00 on 19 December 2025.
Nearest town: 14.06 miles from Common Cefn llwyn.

51.57--2.66

Location: eastbound exit slip at junction J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 13.99 miles from Common Cefn llwyn.

51.57--2.66

Location: eastbound entry slip at junction J22 (Avonmouth) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.23 miles from Common Cefn llwyn.

51.57--2.66

Location: southbound between junctions J16 (Thornbury) and J17 (Bristol West) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.84 miles from Common Cefn llwyn.

51.54--2.59

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

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 20:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.49 miles from Common Cefn llwyn.

51.46--2.75

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

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 20:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.45 miles from Common Cefn llwyn.

51.47--2.74

Location: southbound at junction J18 (Bristol) .

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

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 15 December 2025 to 20 December 2025.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 5 January 2026 to 7 January 2026.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 8 January 2026 to 10 January 2026.

Schedule : From 21:00 on 10 January 2026 to 06:00 on 11 January 2026.

Lanes Closed : All lanes will be closed.
Nearest town: 15.96 miles from Common Cefn llwyn.

51.5--2.67

Location: southbound at junction J18 (Bristol) .

Lane Closures : Lane three will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.96 miles from Common Cefn llwyn.

51.5--2.67

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

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

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 15 December 2025 to 20 December 2025.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 5 January 2026 to 7 January 2026.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 8 January 2026 to 10 January 2026.

Schedule : From 21:00 on 10 January 2026 to 06:00 on 11 January 2026.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.

51.5--2.68

Location: southbound at junction J19 (Portishead) .

Lane Closures : Lane three will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.9 miles from Common Cefn llwyn.

51.48--2.71

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

Lane Closures : Lanes 3 and 4 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.87 miles from Common Cefn llwyn.

51.5--2.68

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

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.
Nearest town: 14.64 miles from Common Cefn llwyn.

51.57--2.65

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 : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.71 miles from Common Cefn llwyn.

51.52--2.66

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

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.88 miles from Common Cefn llwyn.

51.51--2.67

Location: northbound exit slip at junction J18A (South Wales) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.94 miles from Common Cefn llwyn.

51.51--2.67

Location: southbound exit slip at junction J15 (Almondsbury) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.2 miles from Common Cefn llwyn.

51.55--2.55

Location: eastbound entry slip at junction J20 (Bristol) from M5 south.

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 19.12 miles from Common Cefn llwyn.

51.55--2.55

Location: southbound between junctions J14 (Dursley) and J15 (Almondsbury) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.4 miles from Common Cefn llwyn.

51.56--2.54

Location: northbound at junction J18 (Bristol) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 December 2025 to 19 December 2025.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.79 miles from Common Cefn llwyn.

51.5--2.68

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

Lane Closures : Lane one will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 December 2025 to 19 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.83 miles from Common Cefn llwyn.

51.5--2.68

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

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.
Nearest town: 16.89 miles from Common Cefn llwyn.

51.58--2.59

Location: westbound at junction J1 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 15.52 miles from Common Cefn llwyn.

51.6--2.61

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

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.89 miles from Common Cefn llwyn.

51.58--2.59

Location: westbound entry slip at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:30 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.2 miles from Common Cefn llwyn.

51.57--2.66

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

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.42 miles from Common Cefn llwyn.

51.56--2.66

Location: westbound between junctions J20 (Bristol) and J21 (Chepstow) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.06 miles from Common Cefn llwyn.

51.56--2.57

Location: westbound between junctions J20 (Bristol) and J22 (Avonmouth) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.
Nearest town: 18.06 miles from Common Cefn llwyn.

51.56--2.57

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

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 21:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.57 miles from Common Cefn llwyn.

51.57--2.58

Location: westbound entry slip at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.21 miles from Common Cefn llwyn.

51.57--2.66

Location: westbound between junctions J1 (Avonmouth) and J2 (Chepstow) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 21:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.87 miles from Common Cefn llwyn.

51.61--2.63

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

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.38 miles from Common Cefn llwyn.

51.56--2.66

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

Lane Closures : Lane two will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : From 20:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.93 miles from Common Cefn llwyn.

51.57--2.64

Location: eastbound exit slip at junction J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 13.99 miles from Common Cefn llwyn.

51.57--2.66

Location: eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.
Nearest town: 10.52 miles from Common Cefn llwyn.

51.58--2.74

Location: eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .

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

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 10.52 miles from Common Cefn llwyn.

51.58--2.74

Location: eastbound between junctions J2 (Chepstow) and J1 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 19:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 13.03 miles from Common Cefn llwyn.

51.62--2.67

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

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 08:00 on 16 December 2025 to 17:00 on 16 December 2025.
Nearest town: 16.98 miles from Common Cefn llwyn.

51.57--2.59

Location: eastbound at junction J22 (Avonmouth) .

Lane Closures : Lane one will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : From 20:00 on 14 December 2025 to 01:00 on 15 December 2025.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.99 miles from Common Cefn llwyn.

51.57--2.66

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 15 December 2025 to 19 December 2025.

Schedule : From 22:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 15.92 miles from Common Cefn llwyn.

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 15 December 2025 to 19 December 2025.

Schedule : From 22:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 15.77 miles from Common Cefn llwyn.

51.48--2.71

Location: northbound between junctions J18A (South Wales) and J17 (Bristol West) .

Due to: Horticultural works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 08:00 and 16:00 from 15 December 2025 to 19 December 2025.
Nearest town: 16.45 miles from Common Cefn llwyn.

51.52--2.64

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 14 December 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: 15.46 miles from Common Cefn llwyn.

51.43--2.84