What's under a Grantfork driveway
The East Fork of Silver Creek passes through the southeast corner of the village, part of the Kaskaskia River watershed. Water that cannot drain off a driveway soaks into the clay-heavy soils common in the region, and freeze-thaw winters heave the surface. We grade for runoff, remove soft material and compact the rock base in layers.
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 Grantfork estimate is sized to the soil, the traffic and the drainage on your property.