Sabine Parish, LA Shrink-Swell Risk
Sabine Parish, LA's soil, for shrink-swell risk
Moderate
Sabine Parish, LA: USDA's soil survey rates 41.1% of the county "Moderate" for shrink-swell potential (4.5% 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 Sabine Parish's reading doesn't cover
Two lots a mile apart in Sabine Parish can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
What it costs to find out, versus to ignore it
With Sabine Parish, LA 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.
Where this sits nationally
Nationally, Sabine Parish, LA is the 387-most-constrained of 3,085 rated counties for shrink-swell soil. Within Louisiana alone it ranks 35 of 64. Sabine Parish, LA is 867 square miles with a population of 21,746.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Pottawatomie County, OK and Gonzales 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 Louisiana
Every county in Louisiana is on this site, including Red River Parish, LA and East Feliciana Parish, LA. The full underlying dataset is downloadable directly, one row per county.