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A3NI

A3 Northern Ireland traffic

Incidents, roadworks and closures on the A3 (NI) in Northern Ireland, by junction and direction.

2 full closures on the A3 (NI) now

23 entries in all. Source last updated 4 h ago.

Incidents now 0

No incidents reported on the A3 (NI).

Roadworks in force now 3

Lane closure
A3 Moira Road, Lisburn
09:30–16:30, until Mon 12 Oct
Lane closure: A3, Moira Road, Lisburn. Roadworks will operate from 09:30 on Mon 12th Oct 2026 to 16:30 on Mon 12th Oct 2026. Reason: Replace Manhole Cover and Frame.
TrafficwatchNI (DfI) · updated 29 September 2026
Full closure
A3 Moira Road, Lisburn
Until Fri 6 Nov, 16:30
Road closure: A3, Moira Road, Lisburn. Roadworks will operate from 09:30 on Mon 12th Oct 2026 to 16:30 on Fri 6th Nov 2026. Reason: Carriageway Resurfacing Works. Diversion in place.
TrafficwatchNI (DfI) · updated 29 September 2026
Full closure
A3 Moira Road, Lisburn
Until Fri 6 Nov, 23:59
DIVERSION IN PLACE: A3, Moira Road, Lisburn. Closure to operate: Daily - Off-peak.
TrafficwatchNI (DfI) · updated 9 September 2026

Planned roadworks 20

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Questions

Is the A3 (NI) closed today?: Yes, in part: A3 Moira Road, Lisburn; A3 Moira Road, Lisburn.
Are there roadworks on the A3 (NI)?: 3 in progress and 20 planned, listed by junction on this page.