Freeborn County, MN Shrink-Swell Risk
Freeborn County, MN's soil, for shrink-swell risk
Moderate
Freeborn County, MN: USDA's soil survey rates 51.5% of the county "Moderate" for shrink-swell potential (3.37% linear extensibility). Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
What Freeborn County's reading doesn't cover
Two lots a mile apart in Freeborn County can carry different soil, even though they share one countywide reading. 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 Freeborn County.
What it costs to find out, versus to ignore it
With Freeborn County, MN rating "Moderate", 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.
Freeborn County's rank among Minnesota counties
Nationally, Freeborn County, MN is the 929-most-constrained of 3,085 rated counties for shrink-swell soil. Within Minnesota alone it ranks 21 of 87. Freeborn County, MN is 707 square miles with a population of 30,314.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Yuma County, CO and Adams County, CO 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 Minnesota
Every county in Minnesota is on this site, including Fillmore County, MN and Lake County, MN. The full underlying dataset is downloadable directly, one row per county.