A specialty classification that includes the construction, rehabilitation and repair of concrete streets, roads, highways, driveways, parking lots, airport runways and aprons, and concrete work incidental thereto including, but not limited to, sidewalks, curbs, medians, and barrier walls. The classification includes subsurface preparation such as leveling, excavation, grading, compacting, crack sealing, seal coating, under sealing, concrete maintenance and surface treatments incidental thereto as wells as road sweeping.