Greene County, TN Shrink-Swell Risk

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

Low

USDA's SSURGO data puts Greene County, TN's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.2% across 71.6% 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 Greene County, TN at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Greene 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.

Where this sits nationally

Nationally, Greene County, TN is the 1,798-most-constrained of 3,085 rated counties for shrink-swell soil. Within Tennessee alone it ranks 40 of 95. The county spans 622 square miles, home to 73,398 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Choctaw County, OK and Teton County, WY 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 Lauderdale County, TN and Clay County, TN. The full underlying dataset is downloadable directly, one row per county.