Montgomery County, AR Shrink-Swell Risk

What Montgomery County, AR's soil means for a foundation

Low

USDA's SSURGO data puts Montgomery County, AR's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.74% across 84.3% of the county's surveyed land. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

This is a county figure, not a lot figure

USDA's survey covers the whole of Montgomery County, AR at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Montgomery County, AR rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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.

Montgomery County's rank among Arkansas counties

Nationally, Montgomery County, AR is the 2,238-most-constrained of 3,085 rated counties for shrink-swell soil. Within Arkansas alone it ranks 70 of 75. Montgomery County, AR is 780 square miles with a population of 8,510.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Scotts Bluff County, NE and Granville County, NC 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

More of Arkansas

Every county in Arkansas is on this site, including Lonoke County, AR and Lincoln County, AR. The full underlying dataset is downloadable directly, one row per county.