Lonoke County, AR Shrink-Swell Risk

Shrink-swell potential in Lonoke County, AR

Moderate

Soil across 54.4% of Lonoke County, AR comes back "Moderate" in USDA's shrink-swell data, averaging 4.73% linear extensibility. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Lonoke County, AR - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Lonoke County will actually do.

Lonoke County: the real numbers

Lonoke 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.

How Lonoke County, AR compares

Among the 3,085 rated counties on this site, Lonoke County, AR ranks 338 most-constrained nationally, and 17 of 75 within Arkansas. Lonoke County covers 772 square miles and counts 76,389 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Sterling County, TX and Coffee County, GA 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 Pike County, AR and Miller County, AR. The full underlying dataset is downloadable directly, one row per county.