Sevier County, AR Shrink-Swell Risk

Shrink-swell potential in Sevier County, AR

Moderate

Soil across 72.7% of Sevier County, AR comes back "Moderate" in USDA's shrink-swell data, averaging 3.15% linear extensibility. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Sevier 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 Sevier County.

Sevier County: the real numbers

Sevier 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, Sevier County, AR ranks 1,087 most-constrained nationally, and 34 of 75 within Arkansas. Sevier County, AR is 564 square miles with a population of 15,735.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Jackson County, OH and Rock County, NE 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 Searcy County, AR and Johnson County, AR. The full underlying dataset is downloadable directly, one row per county.