Built for Pasadena Hills's ground
Frost action is the quiet problem here. Water sits in a weak base through a freeze-thaw winter, lifts the pavement and leaves cracks behind. The St. Louis County soil survey flags low strength and frost action on many upland soils and calls for adequate base material plus side ditches and culverts. We build the rock section and the drainage to match.
The part of the job you can see is the last two inches. Ask what is underneath, how it will be compacted, and which way the finished surface drains.
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 Pasadena Hills estimate is sized to the soil, the traffic and the drainage on your property.