Description: A40 : Eastbound : Monmouth Dixton R/bout to Servicebridge : 14/04/26-30/06/26 0600 : Contraflow :, Start time: 14/04/2026 6:00 , End Date: 30/06/2026 6:00, Severity: Severe, Source: Welsh Government, Last updated: 14/04/2026 6:00
Nearest town: 14.7 miles from Mamhilad.

Description: M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 :, Start time: 27/04/2026 6:00 , End Date: 30/11/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 6:00
Nearest town: 8.47 miles from Mamhilad.

Location: westbound between junctions J1 (Avonmouth) and J2 (Chepstow) .
Due to: Road Management.
Time To Clear : The event is expected to clear between 04:45 and 05:00 on 29 April 2026.
Normal traffic conditions are expected between 04:30 and 04:45 on 29 April 2026.
Lanes Closed : There are lane closures.
Nearest town: 18.57 miles from Mamhilad.

Location: eastbound between junctions J2 (Chepstow) and J1 (Avonmouth) .
Due to: Road Management.
Time To Clear : The event is expected to clear between 04:30 and 04:45 on 29 April 2026.
Normal traffic conditions are expected between 04:30 and 04:45 on 29 April 2026.
Lanes Closed : There are lane closures.
Nearest town: 18.19 miles from Mamhilad.

Description: A40 : Both directions : Crickhowell : 27/04/26-01/05/26 1900-0700 :, Start time: 27/04/2026 19:00 , End Date: 01/05/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 19:00
Nearest town: 10.94 miles from Mamhilad.

Description: A40 : Both directions : Crickhowell : Roadworks : 04/05/26-11/05/26 1900-0700 :, Start time: 04/05/2026 19:00 , End Date: 11/05/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 16:43
Nearest town: 10.94 miles from Mamhilad.

Location: westbound at junction J1 (Avonmouth) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 06:00 on 29 April 2026 to 15:00 on 29 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.94 miles from Mamhilad.

Location: westbound between the A49 and the junction with the A466 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 May 2026 to 7 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.78 miles from Mamhilad.

Location: westbound at junction J22 (Avonmouth) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 4 May 2026 to 11 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.49 miles from Mamhilad.

Location: westbound at junction J1 (Avonmouth) .
Due to: Emergency roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.13 miles from Mamhilad.

Location: westbound entry slip at junction J22 (Avonmouth) .
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 18.52 miles from Mamhilad.

Location: northbound between the junctions with the M5 and the M4 .
Lane Closures : The hard shoulder and lane 1 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 18.76 miles from Mamhilad.

Location: eastbound at junction J22 (Avonmouth) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 29 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 18.32 miles from Mamhilad.
