DeKalb County, TN Shrink-Swell Risk

DeKalb County's SSURGO shrink-swell reading

Low

In DeKalb County, TN, 58.5% of the surveyed soil carries a "Low" shrink-swell rating, 2.43% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

Before you rely on this for one address

DeKalb 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 DeKalb County, TN

DeKalb 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.

Where this sits nationally

Among the 3,085 rated counties on this site, DeKalb County, TN ranks 1,613 most-constrained nationally, and 28 of 95 within Tennessee. DeKalb County covers 304 square miles and counts 21,747 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Blaine County, NE and Arapahoe County, CO 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 Blount County, TN and Hamilton County, TN. The full underlying dataset is downloadable directly, one row per county.