Fergus County, MT Shrink-Swell Risk

Fergus County's SSURGO shrink-swell reading

Moderate

In Fergus County, MT, 38.4% of the surveyed soil carries a "Moderate" shrink-swell rating, 5.37% linear extensibility on average. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

Before you rely on this for one address

Fergus County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Fergus County will actually do.

Budgeting for Fergus County, MT

Fergus 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.

Fergus County's rank among Montana counties

Among the 3,085 rated counties on this site, Fergus County, MT ranks 231 most-constrained nationally, and 2 of 54 within Montana. Fergus County covers 4,339 square miles and counts 11,862 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Freestone County, TX and Jerome County, ID 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 Cascade County, MT and Wibaux County, MT. The full underlying dataset is downloadable directly, one row per county.