Miller County, AR Shrink-Swell Risk

Miller County, AR's soil, for shrink-swell risk

Moderate

Miller County, AR: USDA's soil survey rates 40.5% of the county "Moderate" for shrink-swell potential (5.73% linear extensibility). Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

What Miller County's reading doesn't cover

Two lots a mile apart in Miller County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Miller County will actually do.

What it costs to find out, versus to ignore it

With Miller County, AR rating "Moderate", 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.

Miller County's rank among Arkansas counties

Nationally, Miller County, AR is the 173-most-constrained of 3,085 rated counties for shrink-swell soil. Within Arkansas alone it ranks 7 of 75. Miller County covers 624 square miles and counts 41,958 residents.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Scott County, MN and Mississippi County, AR 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 Independence County, AR and Sharp County, AR. The full underlying dataset is downloadable directly, one row per county.