La Salle County, TX Shrink-Swell Risk
Shrink-swell potential in La Salle County, TX
Moderate
Soil across 41.5% of La Salle County, TX comes back "Moderate" in USDA's shrink-swell data, averaging 5.88% linear extensibility. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in La Salle County, TX - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in La Salle County will actually do.
La Salle County: the real numbers
La Salle 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.
La Salle County's rank among Texas counties
Among the 3,085 rated counties on this site, La Salle County, TX ranks 146 most-constrained nationally, and 49 of 253 within Texas. La Salle County, TX is 1,487 square miles with a population of 6,679.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Jerauld County, SD and Wolfe County, KY 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 Camp County, TX and Real County, TX. The full underlying dataset is downloadable directly, one row per county.