Miami County, IN Shrink-Swell Risk

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

Moderate

Miami County, IN: USDA's soil survey rates 75.3% of the county "Moderate" for shrink-swell potential (3.51% 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 site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Miami County.

What it costs to find out, versus to ignore it

With Miami 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.

Miami County's rank among Indiana counties

Nationally, Miami County, IN is the 834-most-constrained of 3,085 rated counties for shrink-swell soil. Within Indiana alone it ranks 20 of 90. The county spans 374 square miles, home to 35,613 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Erie County, NY and Rogers County, OK 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 Pike County, IN and Ripley County, IN. The full underlying dataset is downloadable directly, one row per county.