Where can I check current road closures and diversions in Northern Ireland?

TrafficWatchNI is the main official place to check current road closures and signed diversions in Northern Ireland.

The Northern Ireland position should be checked against current nidirect/DfI guidance and the NI Highway Code. The service lists closures and lane restrictions and often gives the alternative route, operating hours and expected delay. DfI schemes, utility works and other authorised works can all appear there.

For this exact issue — “Where can I check current road closures and diversions in Northern Ireland?” — check the live temporary signs first, then confirm the works entry on TrafficWatchNI if you need dates, diversion details or the organisation responsible. Temporary traffic management can alter the normal lane layout, speed limit, access or priority, so an old sat-nav route or memory of the road is not reliable evidence of what is permitted today.

If a closure is active, follow the signs on the road even if a sat-nav suggests the closed route. Live traffic-management signs take priority over an app that has not yet updated. Keep evidence such as photographs, policy wording, vehicle plates or official notices where they could matter later; this is especially useful if an incident, fine or insurance question follows.

Before publishing this answer, the key factual point in “Where can I check current road closures and diversions in Northern Ireland?” was checked against current Northern Ireland official guidance. That matters because road rules, licence entitlements and enforcement details can differ from Great Britain and can change over time; the sources attached below are the ones to re-check if the rule is updated.