Why do you have to remove the grass and a layer of dirt before you begin putting the base material down? If the grass is not completely removed it will grow through the asphalt once paved. By Level Pro|2019-08-13T14:09:21+00:00July 7th, 2018|Asphalt, Paving| Share This Story, Choose Your Platform! FacebookTwitterLinkedInWhatsAppPinterestEmail