Why the base matters in Glen Echo Park
Loess-derived upland soils sit under most of mid-St. Louis County, and the county soil survey flags low strength and frost action as limits for local streets, with adequate base material and drainage as the fix. Freeze-thaw winters do the rest. We grade for runoff and compact rock in layers first.
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 Glen Echo Park estimate is sized to the soil, the traffic and the drainage on your property.