Kootenai County, ID Shrink-Swell Risk

Shrink-swell potential in Kootenai County, ID

Low

Soil across 93.7% of Kootenai County, ID comes back "Low" in USDA's shrink-swell data, averaging 1.5% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Kootenai County, ID - 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 Kootenai County.

Kootenai County: the real numbers

Kootenai 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 Kootenai County, ID compares

Among the 3,085 rated counties on this site, Kootenai County, ID ranks 2,496 most-constrained nationally, and 39 of 44 within Idaho. The county spans 1,238 square miles, home to 188,323 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Tompkins County, NY and Calhoun County, IL 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 Idaho

Every county in Idaho is on this site, including Butte County, ID and Power County, ID. The full underlying dataset is downloadable directly, one row per county.