Nolan County, TX Shrink-Swell Risk

What Nolan County, TX's soil means for a foundation

Moderate

USDA's SSURGO data puts Nolan County, TX's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.08% across 63.5% of the county's surveyed land. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

This is a county figure, not a lot figure

USDA's survey covers the whole of Nolan County, TX 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 Nolan County, TX 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.

Where this sits nationally

Nationally, Nolan County, TX is the 1,131-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 182 of 253. Nolan County, TX is 912 square miles with a population of 14,182.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Knox County, NE and Hancock 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 Texas

Every county in Texas is on this site, including Lee County, TX and Starr County, TX. The full underlying dataset is downloadable directly, one row per county.