Ground, water and winter in Weldon Spring Heights
Winters here run through repeated freezes and thaws, and the clayey upland subsoils common in St. Charles County swell when wet and shrink when dry. Pavement laid on that without a proper base cracks along the movement. We add and compact crushed rock, then grade so water is never sitting under the surface.
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 Weldon Spring Heights estimate is sized to the soil, the traffic and the drainage on your property.