Koochiching County, MN Shrink-Swell Risk

Shrink-swell potential in Koochiching County, MN

Low

Soil across 56.8% of Koochiching County, MN comes back "Low" in USDA's shrink-swell data, averaging 2.79% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Koochiching County, MN - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Koochiching County: the real numbers

Koochiching 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.

Koochiching County's rank among Minnesota counties

Among the 3,085 rated counties on this site, Koochiching County, MN ranks 1,352 most-constrained nationally, and 48 of 87 within Minnesota. Koochiching County covers 3,105 square miles and counts 11,594 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Vernon County, WI and Franklin Parish, LA 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 Scott County, MN and Hubbard County, MN. The full underlying dataset is downloadable directly, one row per county.