Dimmit County, TX Shrink-Swell Risk

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

Moderate

USDA's SSURGO data puts Dimmit County, TX's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 4.61% across 47.7% of the county's surveyed land. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

This is a county figure, not a lot figure

USDA's survey covers the whole of Dimmit 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 Dimmit 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 Dimmit County, TX compares

Nationally, Dimmit County, TX is the 368-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 93 of 253. Dimmit County covers 1,329 square miles and counts 8,181 residents.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Lincoln Parish, LA and Harris County, TX 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 Carson County, TX and Colorado County, TX. The full underlying dataset is downloadable directly, one row per county.