Lenawee County, MI Shrink-Swell Risk

Shrink-swell potential in Lenawee County, MI

Moderate

Soil across 49.9% of Lenawee County, MI comes back "Moderate" in USDA's shrink-swell data, averaging 3.22% 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 this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Lenawee County, MI - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Lenawee County will actually do.

Lenawee County: the real numbers

Lenawee 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.

Lenawee County's rank among Michigan counties

Among the 3,085 rated counties on this site, Lenawee County, MI ranks 1,033 most-constrained nationally, and 1 of 83 within Michigan. The county spans 750 square miles, home to 97,746 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Macomb County, MI and Crook County, WY 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 Saginaw County, MI and Oakland County, MI. The full underlying dataset is downloadable directly, one row per county.