Calhoun County, GA Shrink-Swell Risk

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

Low

USDA's SSURGO data puts Calhoun County, GA's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.42% across 96% of the county's surveyed land. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

This is a county figure, not a lot figure

USDA's survey covers the whole of Calhoun County, GA at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Calhoun County will actually do.

Report cost vs. repair cost

With Calhoun 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.

Where this sits nationally

Nationally, Calhoun County, GA is the 2,602-most-constrained of 3,085 rated counties for shrink-swell soil. Within Georgia alone it ranks 100 of 159. The county spans 280 square miles, home to 5,441 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. San Patricio County, TX and Louisa County, VA 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 Greene County, GA and Fulton County, GA. The full underlying dataset is downloadable directly, one row per county.