Carroll County, IN Shrink-Swell Risk

What Carroll County, IN's soil means for a foundation

Moderate

USDA's SSURGO data puts Carroll County, IN's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.36% across 78.7% of the county's surveyed land. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

This is a county figure, not a lot figure

USDA's survey covers the whole of Carroll County, IN 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 Carroll County will actually do.

Report cost vs. repair cost

With Carroll County, IN 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.

Where this sits nationally

Nationally, Carroll County, IN is the 937-most-constrained of 3,085 rated counties for shrink-swell soil. Within Indiana alone it ranks 26 of 90. Carroll County covers 372 square miles and counts 20,747 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. McClain County, OK and Madison County, MO 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 Indiana

Every county in Indiana is on this site, including Rush County, IN and Grant County, IN. The full underlying dataset is downloadable directly, one row per county.