Overton County, TN Shrink-Swell Risk
Overton County's SSURGO shrink-swell reading
Low
In Overton County, TN, 62.7% of the surveyed soil carries a "Low" shrink-swell rating, 2.36% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Overton County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Budgeting for Overton County, TN
Overton 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.
Overton County's rank among Tennessee counties
Among the 3,085 rated counties on this site, Overton County, TN ranks 1,679 most-constrained nationally, and 34 of 95 within Tennessee. Overton County, TN is 433 square miles with a population of 23,551.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Washington County, OR and Montgomery County, MS 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 Tennessee
Every county in Tennessee is on this site, including Robertson County, TN and Washington County, TN. The full underlying dataset is downloadable directly, one row per county.