Crawford County, MO Shrink-Swell Risk

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

Low

USDA's SSURGO data puts Crawford County, MO's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.14% across 73.8% of the county's surveyed land. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

This is a county figure, not a lot figure

USDA's survey covers the whole of Crawford 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 Crawford County, MO 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, Crawford County, MO is the 1,852-most-constrained of 3,085 rated counties for shrink-swell soil. Within Missouri alone it ranks 89 of 114. Crawford County covers 742 square miles and counts 22,808 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Imperial County, CA and Twiggs County, GA 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 Dent County, MO and Wayne County, MO. The full underlying dataset is downloadable directly, one row per county.