Dewey County, OK Shrink-Swell Risk

Dewey County, OK's soil, for shrink-swell risk

Low

Dewey County, OK: USDA's soil survey rates 91.5% of the county "Low" for shrink-swell potential (1.69% linear extensibility). That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What Dewey County's reading doesn't cover

Two lots a mile apart in Dewey County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Dewey County, OK 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.

Where this sits nationally

Nationally, Dewey County, OK is the 2,297-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oklahoma alone it ranks 73 of 77. The county spans 1,000 square miles, home to 4,268 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Monroe County, OH and Carroll 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 McIntosh County, OK and Pottawatomie County, OK. The full underlying dataset is downloadable directly, one row per county.