Ground, water and winter in Festus
Jefferson County here is ridge ground above the Mississippi bottoms, capped with thick loess and running to cherty red clay over limestone on the slopes. Water moves fast on the grades and slowly in the flats, and freeze-thaw winters lift whatever stays wet. We grade for runoff and compact the rock base in layers.
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 Festus estimate is sized to the soil, the traffic and the drainage on your property.