Why the base matters in Rock Hill
Deer Creek touches the edge of the city, and ground near a creek holds water longer than upland does. County soils formed largely in loess, and the soil survey calls for adequate base material plus ditches and culverts to deal with low strength and frost action. Get water out of the base and freeze-thaw winters have less to work with.
When you compare bids, ask each contractor for three numbers in writing: the compacted asphalt thickness, the base depth, and what happens to the water. Those three decide how long the surface lasts.
Compacted asphaltTypically 2 to 3 in. for a car drive
Stone baseTypically 4 to 8 in., compacted
Drive on itUsually 2 to 3 days, longer in heat
First sealcoatTypically 6 to 12 months after paving
Typical ranges. Your Rock Hill estimate is sized to the soil, the traffic and the drainage on your property.