Clark County, OH Shrink-Swell Risk

What Clark County, OH's soil means for a foundation

Moderate

USDA's SSURGO data puts Clark County, OH's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.38% across 69.7% 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 Clark County, OH 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 Clark County.

Report cost vs. repair cost

With Clark County, OH 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 Clark County, OH compares

Nationally, Clark County, OH is the 918-most-constrained of 3,085 rated counties for shrink-swell soil. Within Ohio alone it ranks 38 of 88. Clark County covers 396 square miles and counts 134,985 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Lyon County, MN and Dubois County, IN 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 Ohio

Every county in Ohio is on this site, including Franklin County, OH and Greene County, OH. The full underlying dataset is downloadable directly, one row per county.