Why the base matters in Millstadt
Uplands here are blanketed in thick windblown loess silt, running as deep as about 90 feet near the bluff line in St. Clair County, with clay-heavy subsoil below. Silt and clay both hold water, and water under pavement is what freeze-thaw winters turn into cracks. We grade for runoff, remove soft ground and compact base rock in layers.
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 Millstadt estimate is sized to the soil, the traffic and the drainage on your property.