Recent data from Northern Ireland's Department for Infrastructure (DfI) has shown 88% of surface maintenance identified in 2024-25 was completed, with £136m spent on structural maintenance of the nation's road network.

According to the department, the total expenditure on roads in Northern Ireland was £466m in 2024-25, which was an increase of 1.8% from the previous year (£458m in 2023-24).

With structural maintenance making up 29.2% of the total expenditure, a further £102m (21.8%) was spent on new construction and improvements for the 25,970-kilometre-long network.

Throughout the year, 91,715 surface defects were instructed for repair following inspections, with 81,483 (88.8%) of those surface defects being repaired.

Unclassified roads accounted for the largest proportion of all roads (61.2%), but there was no information collected on the condition of those routes. C roads made up 18.2% of the network, B roads (11.3%), A roads (8.9%) and Motorways (0.4%), 

Based on data collected by the Surface Condition Assessment for the National Network of Roads (SCANNER) survey, the DfI reported that 80% of A-class roads in Northern Ireland were in generally good condition, with 17.7% in average condition and 2.4% in poor condition, requiring further investigation.

Comparatively, there were fewer B-class roads in generally good condition (72.9%), and fewer still for C-class (60.09%).

The full report can be found here.