Built for Whiteside's ground
Loess and glacial till uplands drain slowly and move with the seasons, swelling when wet and shrinking when dry, and frost lifts whatever sits on them. The county soil survey answers that with crushed rock in the base and roads that shed water to ditches and culverts. We build drives and lots the same way.
Bids are only comparable when they spell out the same things: base depth, compacted thickness, how edges are finished, and where water is meant to go. Ask for those before you pick a number.
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 Whiteside estimate is sized to the soil, the traffic and the drainage on your property.