Abstract: An attachment assembly is provided for quickly and conveniently mounting a roller onto and immediately ahead of an elongate blade of a road grader or other vehicle which manipulates and moves the blade over a ground surface. The portable roller has an elongate body with a continuous cylindrical outer surface for contacting and working the ground surface, and an axle element about which the roller rotates and which protrudes from each opposed end of the roller body. The attachment assembly is removably receivable on the blade and rotatably holds the roller by the protruding axle element. The location and orientation of the roller relative to the ground surface is controlled by manipulating the blade. The assembly provides an alternative to traditional road grading, namely by allowing a road grader to carry a roller to simultaneously level and compact a ground surface, such as a gravel road.