Drew County, AR Shrink-Swell Risk
Shrink-swell potential in Drew County, AR
Moderate
Soil across 69.5% of Drew County, AR comes back "Moderate" in USDA's shrink-swell data, averaging 3.22% 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 Drew 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 Drew County will actually do.
Drew County: the real numbers
Drew 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.
Drew County's rank among Arkansas counties
Among the 3,085 rated counties on this site, Drew County, AR ranks 1,035 most-constrained nationally, and 32 of 75 within Arkansas. Drew County covers 829 square miles and counts 16,935 residents.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Nolan County, TX and Ocean County, NJ 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 Cleburne County, AR and Little River County, AR. The full underlying dataset is downloadable directly, one row per county.