Marshall County, MN Shrink-Swell Risk

Shrink-swell potential in Marshall County, MN

Moderate

Soil across 71.7% of Marshall County, MN comes back "Moderate" in USDA's shrink-swell data, averaging 3.33% 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 Marshall 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 Marshall County.

Marshall County: the real numbers

Marshall 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.

How Marshall County, MN compares

Among the 3,085 rated counties on this site, Marshall County, MN ranks 956 most-constrained nationally, and 23 of 87 within Minnesota. The county spans 1,775 square miles, home to 8,771 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Vermilion County, IL and Iredell County, NC 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 Blue Earth County, MN and Dodge County, MN. The full underlying dataset is downloadable directly, one row per county.