About Grand Prairie Sealcoating
Grand Prairie Sealcoating is a local resource for asphalt maintenance in Champaign, Illinois and the surrounding Champaign County towns. The name comes from the Grand Prairie Natural Division, the tall-grass plain that covers this part of the state and produced the deep, poorly drained silty clay soils that sit under nearly every driveway and parking lot in the county. The site exists because most sealcoating information online is generic, and generic advice is close to useless on ground that carries a water table from January to May.
The purpose here is to explain the work plainly and connect Champaign property owners with local sealcoating crews. Every climate figure, soil property and street-condition number used on this site comes from a published source, and those sources are listed with working links on the Champaign pavement data page. If you want the mechanism rather than the summary, start with the guide on prairie clay and freeze-thaw. If you want to know what a job should cost before you call anyone, start with the cost page.