Yazoo County, MS Shrink-Swell Risk

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

Moderate

USDA's SSURGO data puts Yazoo County, MS's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 4.52% across 75.4% of the county's surveyed land. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

This is a county figure, not a lot figure

USDA's survey covers the whole of Yazoo 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 Yazoo County.

Report cost vs. repair cost

With Yazoo County, MS 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.

Yazoo County's rank among Mississippi counties

Nationally, Yazoo County, MS is the 383-most-constrained of 3,085 rated counties for shrink-swell soil. Within Mississippi alone it ranks 15 of 82. Yazoo County, MS is 922 square miles with a population of 23,024.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Douglas County, NE and Seminole County, FL 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 Harrison County, MS and Lauderdale County, MS. The full underlying dataset is downloadable directly, one row per county.