WorkmanshipflawchartforsubgradefillingGeologicalsurveyCleanbaseandsurveyandlayingoutRollingbasebeforefillingCheckingbaseFillinginlayerPavingwithbulldozerLevelingwithgraderRollingCheckingDowellrecordandchecksignedcertificationSubgradeshapingDemarcateoptimumdampnessandmaximaldrydensitybycompactnessDemarcateoptimumdampnessandmaximaldrydensityofsoilsource