Franklin County, AR Shrink-Swell Risk

What Franklin County, AR's soil means for a foundation

Low

USDA's SSURGO data puts Franklin County, AR's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.9% across 79.2% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

This is a county figure, not a lot figure

USDA's survey covers the whole of Franklin County, AR at once, not any single address. 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 Franklin County.

Report cost vs. repair cost

With Franklin County, AR rating "Low", 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.

How Franklin County, AR compares

Nationally, Franklin County, AR is the 2,073-most-constrained of 3,085 rated counties for shrink-swell soil. Within Arkansas alone it ranks 65 of 75. The county spans 609 square miles, home to 17,586 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Madera County, CA and Nodaway County, MO 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 Johnson County, AR and Searcy County, AR. The full underlying dataset is downloadable directly, one row per county.