What's under a Silex driveway
The Lincoln County soil survey lists low strength, frost action and shrink-swell as the limits for local roads on common upland soils here, formed in loess and glacial till. Its recommendation is a crushed rock base with roads shedding water to ditches and culverts. That is close to the whole job in one sentence, and we build to it.
The part of the job you can see is the last two inches. Ask what is underneath, how it will be compacted, and which way the finished surface drains.
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 Silex estimate is sized to the soil, the traffic and the drainage on your property.