A20 Northern Ireland traffic
Incidents, roadworks and closures on the A20 (NI) in Northern Ireland, by junction and direction.
No incidents on the A20 (NI) now
21 entries in all. Source last updated 3 days ago.
Incidents now 0
Roadworks in force now 3
- Lane closure
A20 Albertsbridge Road, Belfast
Until Fri 23 Oct, 16:30
Lane closure: A20, Albertsbridge Road, Belfast. Roadworks will operate from 09:30 on Wed 23rd Sep 2026 to 16:30 on Fri 23rd Oct 2026. Reason: Pulls and Cabling in the footpath.
TrafficwatchNI (DfI) · updated 30 September 2026
- Lane closure
A20 Newtownards Road, Belfast
Until Wed 14 Oct, 23:59
Lane closure: A20, Newtownards Road, Belfast. Roadworks will operate as follows:-. Reason: Ironworks- Mastic.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Newtownards Road, Greyabbey
Until Wed 14 Oct, 23:59
Lane closure: A20, Newtownards Road, Greyabbey. Roadworks will operate from Wed 16th Sep 2026 to Wed 14th Oct 2026. Reason: NIE Scheme.
TrafficwatchNI (DfI) · updated 29 September 2026
Planned roadworks 18
- Lane closure
A20 May Street, Belfast
Starts Tue 13 Oct, 00:00
Lane closure: A20, May Street, Belfast. Roadworks will operate as follows:-. Reason: Vodafone chamber repairs.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Oxford Street, Belfast
Starts Tue 13 Oct, 00:00
Lane closure: A20, Oxford Street, Belfast. Roadworks will operate as follows:-. Reason: NIW - Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Portaferry Road, Greyabbey
Starts Tue 13 Oct, 09:30
Lane closure: A20, Portaferry Road, Greyabbey. Roadworks will operate from 09:30 on Tue 13th Oct 2026 to 16:30 on Tue 13th Oct 2026. Reason: Fibre install to customers house, 64 Portaferry Road.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 May Street, Belfast
Starts Wed 14 Oct, 00:00
Lane closure: A20, May Street, Belfast. Roadworks will operate as follows:-. Reason: Vodafone chamber repairs.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Portaferry Road, Newtownards
Starts Wed 14 Oct, 09:30
Lane closure: A20, Portaferry Road, Newtownards. Roadworks will operate from 09:30 on Wed 14th Oct 2026 to 16:30 on Wed 14th Oct 2026. Reason: BT Openreach New Connection.
TrafficwatchNI (DfI) · updated 2 October 2026
- Lane closure
A20 Newtownards Road, Greyabbey
Starts Thu 15 Oct, 08:00
Lane closure: A20, Newtownards Road, Greyabbey. Roadworks will operate from 08:00 on Thu 15th Oct 2026 to 18:00 on Thu 15th Oct 2026. Reason: frame & cover.
TrafficwatchNI (DfI) · updated 30 September 2026
- Lane closure
A20 Upper Newtownards Road, Belfast
Starts Fri 16 Oct, 09:30
Lane closure: A20, Upper Newtownards Road, Belfast. Roadworks will operate from 09:30 on Fri 16th Oct 2026 to 16:30 on Fri 16th Oct 2026. Reason: NIW - Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 30 September 2026
- Lane closure
A20 Donegall Square South, Belfast
Starts Sun 18 Oct, 00:00
Lane closure: A20, Donegall Square South, Belfast. Roadworks will operate as follows:-. Reason: NIW - Replace or Relevel FH Box.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Kempe Stones Road, Newtownards
Starts Sun 18 Oct, 09:00
Lane closure: A20, Kempe Stones Road, Newtownards. Roadworks will operate from 09:00 on Sun 18th Oct 2026 to 17:00 on Sun 18th Oct 2026. Reason: NIE Tree Cutting.
TrafficwatchNI (DfI) · updated 3 days ago
- Lane closure
A20 Portaferry Road, Carrowdore
Starts Mon 19 Oct, 09:30
Lane closure: A20, Portaferry Road, Carrowdore. Roadworks will operate from 09:30 on Mon 19th Oct 2026 to 16:30 on Wed 28th Oct 2026. Reason: tree cutting.
TrafficwatchNI (DfI) · updated 5 days ago
- Lane closure
A20 Newtownards Road, Belfast
Starts Mon 19 Oct, 09:30
Lane closure: A20, Newtownards Road, Belfast. Roadworks will operate from 09:30 on Mon 19th Oct 2026 to 16:30 on Mon 19th Oct 2026. Reason: Replace SV.
TrafficwatchNI (DfI) · updated 5 October 2026
- Lane closure
A20 Newtownards Road, Belfast
Starts Tue 27 Oct, 09:30
Lane closure: A20, Newtownards Road, Belfast. Roadworks will operate from 09:30 on Tue 27th Oct 2026 to 16:30 on Tue 27th Oct 2026. Reason: NIW - Replace or Rebuild Chamber.
TrafficwatchNI (DfI) · updated 4 days ago
- Lane closure
A20 Upper Newtownards Road, Belfast
Starts Sun 1 Nov, 00:00
Lane closure: A20, Upper Newtownards Road, Belfast. Roadworks will operate as follows:-. Reason: Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Oxford Street, Belfast
Starts Sun 8 Nov, 00:00
Lane closure: A20, Oxford Street, Belfast. Roadworks will operate as follows:-. Reason: NIW - meter works.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Upper Newtownards Road, Belfast
Starts Sun 8 Nov, 00:00
Lane closure: A20, Upper Newtownards Road, Belfast. Roadworks will operate as follows:-. Reason: Reset Manhole Cover And Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Upper Newtownards Road, Belfast
Starts Sun 8 Nov, 00:00
Lane closure: A20, Upper Newtownards Road, Belfast. Roadworks will operate as follows:-. Reason: Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Newtownards Road, Belfast
Starts Sun 15 Nov, 00:00
Lane closure: A20, Newtownards Road, Belfast. Roadworks will operate as follows:-. Reason: new gas connection.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A20 Upper Newtownards Road, Belfast
Starts Sun 29 Nov, 09:30
Lane closure: A20, Upper Newtownards Road, Belfast. Roadworks will operate from 09:30 on Sun 29th Nov 2026 to 16:30 on Sun 29th Nov 2026. Reason: NEW GAS CONNECTION.
TrafficwatchNI (DfI) · updated 1 October 2026
The A20 (NI) in your inbox at 06:30
What's closed, what's happened and tonight's works. Free, every morning or Mondays only.
Questions
- Is the A20 (NI) closed today?
- No full closure is reported on the A20 (NI) at the moment.
- Are there roadworks on the A20 (NI)?
- 3 in progress and 18 planned, listed by junction on this page.