Wibaux County, MT Shrink-Swell Risk

Shrink-swell potential in Wibaux County, MT

Moderate

Soil across 43.2% of Wibaux County, MT comes back "Moderate" in USDA's shrink-swell data, averaging 3.64% linear extensibility. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Wibaux County, MT - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Wibaux County will actually do.

Wibaux County: the real numbers

Wibaux 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 Wibaux County, MT compares

Among the 3,085 rated counties on this site, Wibaux County, MT ranks 768 most-constrained nationally, and 23 of 54 within Montana. Wibaux County, MT is 890 square miles with a population of 911.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Miami County, OH and Pike County, MS 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 Montana

Every county in Montana is on this site, including Broadwater County, MT and McCone County, MT. The full underlying dataset is downloadable directly, one row per county.