What's under a Oakville driveway
Bluff and upland ground above the Mississippi drops toward the river, so runoff moves fast and finds any weak edge. Underneath, clay-heavy soil common across the region holds water and shifts with freeze and thaw. We grade first, cut drainage where it is needed, remove soft material and compact the base in layers so the asphalt sits on something that will not move.
Before you sign anything, get the base depth and the compacted asphalt thickness on paper. Two bids that look far apart are often just two different pavements.
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 Oakville estimate is sized to the soil, the traffic and the drainage on your property.