Clay County, TX Shrink-Swell Risk
Shrink-swell potential in Clay County, TX
Moderate
Soil across 56.6% of Clay County, TX comes back "Moderate" in USDA's shrink-swell data, averaging 4.14% linear extensibility. 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.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Clay County, TX - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Clay County: the real numbers
Clay 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.
Clay County's rank among Texas counties
Among the 3,085 rated counties on this site, Clay County, TX ranks 507 most-constrained nationally, and 119 of 253 within Texas. Clay County covers 1,089 square miles and counts 10,730 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Fayette County, GA and Lincoln 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 Texas
Every county in Texas is on this site, including Llano County, TX and Castro County, TX. The full underlying dataset is downloadable directly, one row per county.