The "Sinohydro International" LTD Chinese company implements pothole patching works on the Tranche-3 of the North-South Road Corridor. The potholes are flattened paying attention to the removal of water. The pothole patching improves the condition of the road, ensuring traffic safety.

The contractor provides intensive maintenance clearing the road from garbage,  focusing on security issues as well. The road is regularly surveyed and missing road signs are installed.