Grenada County, MS Shrink-Swell Risk

What Grenada County, MS's soil means for a foundation

Low

USDA's SSURGO data puts Grenada County, MS's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.11% across 85.9% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

This is a county figure, not a lot figure

USDA's survey covers the whole of Grenada County, MS at once, not any single address. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Grenada County.

Report cost vs. repair cost

With Grenada County, MS 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.

Where this sits nationally

Nationally, Grenada County, MS is the 1,885-most-constrained of 3,085 rated counties for shrink-swell soil. Within Mississippi alone it ranks 49 of 82. The county spans 422 square miles, home to 20,931 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Yamhill County, OR and Carlton County, MN 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 Mississippi

Every county in Mississippi is on this site, including Hinds County, MS and Lamar County, MS. The full underlying dataset is downloadable directly, one row per county.