Bryan County, OK Shrink-Swell Risk

What Bryan County, OK's soil means for a foundation

Moderate

USDA's SSURGO data puts Bryan County, OK's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 5.26% across 32.4% of the county's surveyed land. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

This is a county figure, not a lot figure

USDA's survey covers the whole of Bryan County, OK 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 Bryan County, OK rating "Moderate", 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.

Bryan County's rank among Oklahoma counties

Nationally, Bryan County, OK is the 245-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oklahoma alone it ranks 4 of 77. Bryan County, OK is 904 square miles with a population of 50,305.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Pepin County, WI and Howard County, MO 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 Oklahoma

Every county in Oklahoma is on this site, including Canadian County, OK and Logan County, OK. The full underlying dataset is downloadable directly, one row per county.