Hardeman County, TN Shrink-Swell Risk
Hardeman County, TN's soil, for shrink-swell risk
Low
Hardeman County, TN: USDA's soil survey rates 80.2% of the county "Low" for shrink-swell potential (2.04% 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 Hardeman County's reading doesn't cover
Two lots a mile apart in Hardeman County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Hardeman County will actually do.
What it costs to find out, versus to ignore it
With Hardeman 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.
Hardeman County's rank among Tennessee counties
Nationally, Hardeman County, TN is the 1,949-most-constrained of 3,085 rated counties for shrink-swell soil. Within Tennessee alone it ranks 49 of 95. Hardeman County covers 668 square miles and counts 25,434 residents.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Hays County, TX and Randolph County, WV 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 DeKalb County, TN and Chester County, TN. The full underlying dataset is downloadable directly, one row per county.