Red River County, TX Shrink-Swell Risk
Red River County, TX's soil, for shrink-swell risk
High
Red River County, TX: USDA's soil survey rates 30.3% of the county "High" for shrink-swell potential (6.59% linear extensibility). Soil at this level can crack a standard foundation without moisture-control measures - consistent watering near the foundation, correct grading, root barriers - or added structural design.
What Red River County's reading doesn't cover
Two lots a mile apart in Red River County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Red River County will actually do.
What it costs to find out, versus to ignore it
Given Red River County's rating, spending a few thousand now is the way to avoid spending tens of thousands later. The report ($1,000-$5,000) is what tells you whether Red River County's county-level reading applies to your lot; the repair ($5,000-$15,000) is what it costs if you skip that and find out from the cracks instead.
How Red River County, TX compares
Nationally, Red River County, TX is the 86-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 31 of 253. Red River County covers 1,044 square miles and counts 11,696 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Oswego County, NY and Porter County, IN are worth a look for comparison.
How this reading is built, and its real limits · The warning signs of expansive-clay damage, explained
More of Texas
Every county in Texas is on this site, including Swisher County, TX and Clay County, TX. The full underlying dataset is downloadable directly, one row per county.