Dyer County, TN Shrink-Swell Risk

Dyer County, TN's soil, for shrink-swell risk

Moderate

Dyer County, TN: USDA's soil survey rates 71.9% of the county "Moderate" for shrink-swell potential (3.58% linear extensibility). That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What Dyer County's reading doesn't cover

Two lots a mile apart in Dyer County can carry different soil, even though they share one countywide reading. 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 Dyer County.

What it costs to find out, versus to ignore it

With Dyer County, TN rating "Moderate", 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 Dyer County, TN compares

Nationally, Dyer County, TN is the 791-most-constrained of 3,085 rated counties for shrink-swell soil. Within Tennessee alone it ranks 7 of 95. Dyer County covers 512 square miles and counts 36,403 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Warren County, NC and Richland County, MT 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 Van Buren County, TN and Rutherford County, TN. The full underlying dataset is downloadable directly, one row per county.