Union County, OH Shrink-Swell Risk

Union County, OH's soil, for shrink-swell risk

Moderate

Union County, OH: USDA's soil survey rates 87.7% of the county "Moderate" for shrink-swell potential (4.13% linear extensibility). That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What Union County's reading doesn't cover

Two lots a mile apart in Union County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Union County will actually do.

What it costs to find out, versus to ignore it

With Union 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.

Union County's rank among Ohio counties

Nationally, Union County, OH is the 508-most-constrained of 3,085 rated counties for shrink-swell soil. Within Ohio alone it ranks 12 of 88. The county spans 432 square miles, home to 71,721 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Dyer County, TN and Bell County, KY 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 Lawrence County, OH and Wyandot County, OH. The full underlying dataset is downloadable directly, one row per county.