Description: A4232 : Southbound : M4 J33 Capel Llanilltern to A48 Interchange : Congestion : Delays possible :,Start time: 19/03/2026 8:15 ,Expected end time:19/03/2026 12:14,Severity: Moderate,Source: Welsh Government,Last updated: 19/03/2026 8:15
Nearest town: 5.22 miles from Cardiff.

Description: M4 : Eastbound : J33 (Cardiff) Capel Llanilltern : Congestion : offslip : Delays possible :,Start time: 19/03/2026 7:19 ,Expected end time:19/03/2026 10:19,Severity: Moderate,Source: Welsh Government,Last updated: 19/03/2026 7:19
Nearest town: 6.38 miles from Cardiff.

Description: M4 : Eastbound : J27 (High Cross) High Cross to J23A (Magor) Magor : Congestion : Delays possible :,Start time: 19/03/2026 6:56 ,Expected end time:19/03/2026 10:55,Severity: Moderate,Source: Welsh Government,Last updated: 19/03/2026 6:56
Nearest town: 12.76 miles from Cardiff.

Description: A470 : Southbound : Nantgarw to Coryton : Congestion : Delays possible :,Start time: 19/03/2026 7:09 ,Expected end time:19/03/2026 10:08,Severity: Moderate,Source: Welsh Government,Last updated: 19/03/2026 7:09
Nearest town: 6.18 miles from Cardiff.

Description: A4232 : Southbound : M4 J33 Capel Llanilltern to St Fagans : Road closed : Maintenance work : Diversions in place : 16/03/26-20/03/26 2000-0600 :,Start time: 16/03/2026 20:00 ,End Date:20/03/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 16/03/2026 20:00
Nearest town: 5.58 miles from Cardiff.

Description: M4 : Westbound : J26 (Newport) Malpas : Offslip closed : Maintenance work : 16/03/26-21/03/26 2000-0600 :,Start time: 16/03/2026 20:00 ,End Date:21/03/2026 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 16/03/2026 20:00
Nearest town: 11.04 miles from Cardiff.

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 19 March 2026 to 05:00 on 20 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.46 miles from Cardiff.

Location: eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .
Due to: Roadworks scheme.
Period : from 21:06 on 18 March 2026 to 05:00 on 19 March 2026.
Nearest town: 19.79 miles from Cardiff.

Location: eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .
Due to: Roadworks.
Period : expect disruption until 05:00 on 19 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.79 miles from Cardiff.

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Due to: Roadworks scheme.
Period : from 20:09 on 16 March 2026 to 06:00 on 21 March 2026.
Nearest town: 15.37 miles from Cardiff.

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 19 March 2026 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: 14.54 miles from Cardiff.

Location: southbound between junctions J19 (Portishead)and J20 (Nailsea) .
Lane Closures : The hard shoulder is closed.
Due to: Roadworks.
Period : expect disruption until 17:00 on 20 March 2026.
Nearest town: 16.8 miles from Cardiff.

Location: northbound entry slip at junction J20 (Nailsea) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.52 miles from Cardiff.

Location: northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.34 miles from Cardiff.

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 : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 14.65 miles from Cardiff.

Location: southbound between junctions J20 (Nailsea)and J21 (Weston super Mare) .
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 23 March 2026 to 28 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.51 miles from Cardiff.

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 19 March 2026 to 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.81 miles from Cardiff.

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane Closures : Lanes 2,3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 19 March 2026 to 21 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 15.35 miles from Cardiff.

Location: northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Nearest town: 14.36 miles from Cardiff.

Location: northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.36 miles from Cardiff.

Location: northbound entry slip at junction J21 (Weston super Mare) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.28 miles from Cardiff.

Location: northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
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 19 March 2026 to 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.48 miles from Cardiff.

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 : From 20:30 on 20 March 2026 to 08:00 on 21 March 2026.
Schedule : From 19:30 on 21 March 2026 to 09:00 on 22 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.99 miles from Cardiff.

Location: northbound at junction J19 (Portishead) .
Lane Closures : Lanes 1,2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:30 on 20 March 2026 to 08:00 on 21 March 2026.
Schedule : From 19:30 on 21 March 2026 to 09:00 on 22 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.62 miles from Cardiff.

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane Closures : The hard shoulder is closed.
Due to: Barrier repairs.
Period : expect disruption until 17:00 on 19 March 2026.
Nearest town: 16.72 miles from Cardiff.

Location: southbound between junctions J19 (Portishead)and J20 (Nailsea) .
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 19 March 2026 to 21 March 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 March 2026 to 28 March 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 30 March 2026 to 1 April 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 16.93 miles from Cardiff.

Location: northbound at junction J19 (Portishead) .
Lane Closures : Lanes 1,2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 19 March 2026 to 06:00 on 20 March 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 23 March 2026 to 28 March 2026.
Schedule : From 21:00 on 30 March 2026 to 06:00 on 31 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.99 miles from Cardiff.

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 : From 21:00 on 19 March 2026 to 06:00 on 20 March 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 23 March 2026 to 28 March 2026.
Schedule : From 21:00 on 30 March 2026 to 06:00 on 31 March 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.62 miles from Cardiff.
