Chariton County, MO Shrink-Swell Risk

What Chariton County, MO's soil means for a foundation

Moderate

USDA's SSURGO data puts Chariton County, MO's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 5.6% across 45.6% 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 Chariton County, MO at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Chariton County, MO 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.

How Chariton County, MO compares

Nationally, Chariton County, MO is the 202-most-constrained of 3,085 rated counties for shrink-swell soil. Within Missouri alone it ranks 23 of 114. Chariton County, MO is 751 square miles with a population of 7,397.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Northumberland County, VA and Saline County, AR 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 Missouri

Every county in Missouri is on this site, including Harrison County, MO and Putnam County, MO. The full underlying dataset is downloadable directly, one row per county.