A23 Northern Ireland traffic
Incidents, roadworks and closures on the A23 (NI) in Northern Ireland, by junction and direction.
No incidents on the A23 (NI) now
7 entries in all. Source last updated 2 days ago.
Incidents now 0
Planned roadworks 7
- Lane closure
A23 Castlereagh Road, Belfast
Starts Thu 15 Oct, 09:30
Lane closure: A23, Castlereagh Road, Belfast. Roadworks will operate from 09:30 on Thu 15th Oct 2026 to 16:30 on Fri 16th Oct 2026. Reason: SNAG REPAIRS.
TrafficwatchNI (DfI) · updated 30 September 2026
- Lane closure
A23 Ballygowan Road, Belfast
Starts Sun 18 Oct, 00:00
Lane closure: A23, Ballygowan Road, Belfast. Roadworks will operate as follows:-. Reason: NIE overhead lines work.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A23 Castlereagh Road, Belfast
Starts Sun 18 Oct, 00:00
Lane closure: A23, Castlereagh Road, Belfast. Roadworks will operate as follows:-. Reason: Tree felling.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A23 Castlereagh Road, Belfast
Starts Sun 18 Oct, 00:00
Lane closure: A23, Castlereagh Road, Belfast. Roadworks will operate as follows:-. Reason: NIW - Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
- Lane closure
A23 Ballygowan Road, Crossnacreevy
Starts Mon 19 Oct, 09:30
Lane closure: A23, Ballygowan Road, Crossnacreevy. Roadworks will operate from 09:30 on Mon 19th Oct 2026 to 16:30 on Fri 30th Oct 2026. Reason: High friction surfacing.
TrafficwatchNI (DfI) · updated 2 days ago
- Lane closure
A23 Castlereagh Road, Belfast
Starts Tue 27 Oct, 00:00
Lane closure: A23, Castlereagh Road, Belfast. Roadworks will operate as follows:-. Reason: NIW - Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 5 days ago
- Lane closure
A23 Castlereagh Road, Belfast
Starts Wed 28 Oct, 09:30
Lane closure: A23, Castlereagh Road, Belfast. Roadworks will operate from 09:30 on Wed 28th Oct 2026 to 16:30 on Wed 28th Oct 2026. Reason: Meter Works.
TrafficwatchNI (DfI) · updated 3 days ago
The A23 (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 A23 (NI) closed today?
- No full closure is reported on the A23 (NI) at the moment.
- Are there roadworks on the A23 (NI)?
- 0 in progress and 7 planned, listed by junction on this page.