Why the base matters in Pacific
Valley bottom near the Meramec holds water and can stay saturated, while the ground below the bluffs takes runoff coming off rock. Clay-heavy soils are common across the region and move with freeze and thaw. Good drainage matters more here than anywhere: we grade the surface to shed water, cut drainage where runoff collects, and compact base rock in layers.
A cheap bid usually gets cheap somewhere you cannot see. Ask what depth of stone goes down, how thick the asphalt is after rolling, and who fixes it if water still stands.
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 Pacific estimate is sized to the soil, the traffic and the drainage on your property.