Oregon County, MO Shrink-Swell Risk

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

Low

USDA's SSURGO data puts Oregon County, MO's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.86% across 83.9% 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 Oregon County, MO at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Oregon County will actually do.

Report cost vs. repair cost

With Oregon 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.

Oregon County's rank among Missouri counties

Nationally, Oregon County, MO is the 2,116-most-constrained of 3,085 rated counties for shrink-swell soil. Within Missouri alone it ranks 100 of 114. Oregon County, MO is 790 square miles with a population of 8,699.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Covington County, AL and Ross County, OH 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 Crawford County, MO and Pike County, MO. The full underlying dataset is downloadable directly, one row per county.