Clayton County, GA Shrink-Swell Risk

What Clayton County, GA's soil means for a foundation

Low

USDA's SSURGO data puts Clayton County, GA's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.5% across 100% of the county's surveyed land. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

This is a county figure, not a lot figure

USDA's survey covers the whole of Clayton County, GA at once, not any single address. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Clayton County.

Report cost vs. repair cost

With Clayton County, GA rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.

Clayton County's rank among Georgia counties

Nationally, Clayton County, GA is the 2,488-most-constrained of 3,085 rated counties for shrink-swell soil. Within Georgia alone it ranks 82 of 159. Clayton County, GA is 142 square miles with a population of 297,703.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Hansford County, TX and Colleton County, SC are worth a look for comparison.

How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil

More of Georgia

Every county in Georgia is on this site, including Crisp County, GA and Muscogee County, GA. The full underlying dataset is downloadable directly, one row per county.