Sharp County, AR Shrink-Swell Risk
Shrink-swell potential in Sharp County, AR
Low
Soil across 55.8% of Sharp County, AR comes back "Low" in USDA's shrink-swell data, averaging 2.99% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Sharp County, AR - never a reading for one specific parcel. 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 Sharp County.
Sharp County: the real numbers
Sharp 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, Sharp County, AR ranks 1,202 most-constrained nationally, and 36 of 75 within Arkansas. The county spans 605 square miles, home to 18,130 people.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Douglas County, SD and Somerset County, PA 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 Desha County, AR and Greene County, AR. The full underlying dataset is downloadable directly, one row per county.