Carroll County, AR Shrink-Swell Risk

What Carroll County, AR's soil means for a foundation

Low

USDA's SSURGO data puts Carroll County, AR's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.48% across 61.3% 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 Carroll County, AR 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 Carroll County.

Report cost vs. repair cost

With Carroll County, AR 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, Carroll County, AR is the 1,578-most-constrained of 3,085 rated counties for shrink-swell soil. Within Arkansas alone it ranks 47 of 75. Carroll County covers 630 square miles and counts 28,968 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Dawson County, GA and Warren County, IN 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 Arkansas

Every county in Arkansas is on this site, including Garland County, AR and Clay County, AR. The full underlying dataset is downloadable directly, one row per county.