Iosco County, MI Shrink-Swell Risk

Iosco County's SSURGO shrink-swell reading

Low

In Iosco County, MI, 83.1% of the surveyed soil carries a "Low" shrink-swell rating, 1.88% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

Before you rely on this for one address

Iosco County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Iosco County.

Budgeting for Iosco County, MI

Iosco County's soil reading points toward standard foundation practice as the likely outcome, not the exception. 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Iosco County, MI ranks 2,096 most-constrained nationally, and 20 of 83 within Michigan. Iosco County, MI is 549 square miles with a population of 25,361.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Austin County, TX and St. Clair County, MI 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

Elsewhere in Michigan

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