Winona County, MN Shrink-Swell Risk

Shrink-swell potential in Winona County, MN

Low

Soil across 50.5% of Winona County, MN comes back "Low" in USDA's shrink-swell data, averaging 2.8% linear extensibility. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Winona County, MN - never a reading for one specific parcel. 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 Winona County.

Winona County: the real numbers

Winona 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, Winona County, MN ranks 1,346 most-constrained nationally, and 47 of 87 within Minnesota. Winona County covers 626 square miles and counts 49,973 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Pierce County, WI and Chautauqua County, KS 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 Minnesota

Every county in Minnesota is on this site, including Mower County, MN and Chippewa County, MN. The full underlying dataset is downloadable directly, one row per county.