Custer County, OK Shrink-Swell Risk

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

Low

Custer County, OK: USDA's soil survey rates 81.7% of the county "Low" for shrink-swell potential (2.03% linear extensibility). Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What Custer County's reading doesn't cover

Two lots a mile apart in Custer County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Custer County will actually do.

What it costs to find out, versus to ignore it

With Custer 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, Custer County, OK is the 1,959-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oklahoma alone it ranks 67 of 77. Custer County covers 989 square miles and counts 28,266 residents.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Humboldt County, CA and Sarpy County, NE 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 Greer County, OK and Caddo County, OK. The full underlying dataset is downloadable directly, one row per county.