Stewart County, TN Shrink-Swell Risk

What Stewart County, TN's soil means for a foundation

Low

USDA's SSURGO data puts Stewart County, TN's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.07% across 96.6% of the county's surveyed land. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

This is a county figure, not a lot figure

USDA's survey covers the whole of Stewart County, TN at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Stewart County will actually do.

Report cost vs. repair cost

With Stewart County, TN 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 Stewart County, TN compares

Nationally, Stewart County, TN is the 2,863-most-constrained of 3,085 rated counties for shrink-swell soil. Within Tennessee alone it ranks 94 of 95. Stewart County covers 460 square miles and counts 14,365 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. St. Lawrence County, NY and Christian County, IL 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 Tennessee

Every county in Tennessee is on this site, including Weakley County, TN and Haywood County, TN. The full underlying dataset is downloadable directly, one row per county.