The scrape marks occur in areas where the profile of the pavement is slightly high. As a function of resurfacing, the profile of the road is often changed. Centerline joints, mid lane seams, manhole elevations and butt joints are slightly ‘high’ causing plowing with either underbelly or front mounted units to scrape these areas leaving white marks in the first season. The surface scrapes do not impact the structural integrity of the roadway. Bituminous mixtures rely on the sand and asphaltic cement matrix to ‘bind’ the aggregates together from a structural standpoint and the effects of the plowing are more of an aesthetic concern than a pavement life issue. For more information, view the Plow Scraping Information Sheet (PDF).