Why the base matters in East Alton
Low ground near the Mississippi and the Wood River can hold water longer after rain, and the clay-heavy soils common around St. Louis slow drainage further. When that water freezes under pavement, it heaves and cracks the surface. We start every job with grading and drainage, remove soft material and compact the rock base 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 East Alton estimate is sized to the soil, the traffic and the drainage on your property.