Ionia County, MI Shrink-Swell Risk

What Ionia County, MI's soil means for a foundation

Low

USDA's SSURGO data puts Ionia County, MI's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.12% across 79% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

This is a county figure, not a lot figure

USDA's survey covers the whole of Ionia County, MI 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 Ionia County.

Report cost vs. repair cost

With Ionia County, MI rating "Low", 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 Ionia County, MI compares

Nationally, Ionia County, MI is the 1,872-most-constrained of 3,085 rated counties for shrink-swell soil. Within Michigan alone it ranks 10 of 83. Ionia County, MI is 571 square miles with a population of 66,250.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Rooks County, KS and Lauderdale County, AL 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 Michigan

Every county in Michigan is on this site, including St. Joseph County, MI and Houghton County, MI. The full underlying dataset is downloadable directly, one row per county.