Randolph County, AL Shrink-Swell Risk

Shrink-swell potential in Randolph County, AL

Low

Soil across 99.9% of Randolph County, AL comes back "Low" in USDA's shrink-swell data, averaging 1.38% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

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

Randolph County: the real numbers

Randolph 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, Randolph County, AL ranks 2,629 most-constrained nationally, and 56 of 67 within Alabama. Randolph County covers 581 square miles and counts 23,067 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Warren County, GA and Polk County, TX 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 Alabama

Every county in Alabama is on this site, including Geneva County, AL and St. Clair County, AL. The full underlying dataset is downloadable directly, one row per county.