Marion County, TX Shrink-Swell Risk

Marion County, TX's soil, for shrink-swell risk

Low

Marion County, TX: USDA's soil survey rates 86.1% of the county "Low" for shrink-swell potential (2.09% linear extensibility). That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What Marion County's reading doesn't cover

Two lots a mile apart in Marion County 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 Marion County, TX rating "Low", 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.

Marion County's rank among Texas counties

Nationally, Marion County, TX is the 1,904-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 229 of 253. The county spans 381 square miles, home to 9,704 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. San Miguel County, NM and Lowndes County, AL 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 Kent County, TX and Hall County, TX. The full underlying dataset is downloadable directly, one row per county.