Arkansas County, AR Shrink-Swell Risk
Arkansas County's SSURGO shrink-swell reading
Moderate
In Arkansas County, AR, 61.6% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.53% linear extensibility on average. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.
Before you rely on this for one address
Arkansas County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Arkansas County.
Budgeting for Arkansas County, AR
Arkansas County's soil reading points toward standard foundation practice as the likely outcome, not the exception. 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
Among the 3,085 rated counties on this site, Arkansas County, AR ranks 824 most-constrained nationally, and 28 of 75 within Arkansas. Arkansas County, AR is 992 square miles with a population of 16,050.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Box Elder County, UT and Washington County, FL 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
Elsewhere in Arkansas
Every county in Arkansas is on this site, including Columbia County, AR and Garland County, AR. The full underlying dataset is downloadable directly, one row per county.