Coryell County, TX Shrink-Swell Risk

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

Moderate

USDA's SSURGO data puts Coryell County, TX's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.98% across 52.7% 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 Coryell 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 Coryell 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.

How Coryell County, TX compares

Nationally, Coryell County, TX is the 576-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 129 of 253. Coryell County, TX is 1,052 square miles with a population of 86,370.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Liberty County, MT and Crawford County, IN 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 Hill County, TX and Collin County, TX. The full underlying dataset is downloadable directly, one row per county.