Miami County, OH Shrink-Swell Risk

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

Moderate

Miami County, OH: USDA's soil survey rates 50.8% of the county "Moderate" for shrink-swell potential (3.3% 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 Miami County's reading doesn't cover

Two lots a mile apart in Miami 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 Miami County will actually do.

What it costs to find out, versus to ignore it

With Miami 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.

Miami County's rank among Ohio counties

Nationally, Miami County, OH is the 972-most-constrained of 3,085 rated counties for shrink-swell soil. Within Ohio alone it ranks 44 of 88. The county spans 407 square miles, home to 111,950 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Barren County, KY and Livingston Parish, LA 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 Seneca County, OH and Paulding County, OH. The full underlying dataset is downloadable directly, one row per county.