Montgomery County, MO Shrink-Swell Risk

Montgomery County's SSURGO shrink-swell reading

Moderate

In Montgomery County, MO, 63.8% of the surveyed soil carries a "Moderate" shrink-swell rating, 5.73% linear extensibility on average. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

Before you rely on this for one address

Montgomery County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Montgomery County.

Budgeting for Montgomery County, MO

Montgomery 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Montgomery County, MO ranks 177 most-constrained nationally, and 20 of 114 within Missouri. Montgomery County, MO is 535 square miles with a population of 11,511.

For contrast

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 Missouri

Every county in Missouri is on this site, including Pike County, MO and Daviess County, MO. The full underlying dataset is downloadable directly, one row per county.