Jefferson County, OK Shrink-Swell Risk

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

Moderate

Jefferson County, OK: USDA's soil survey rates 51.3% of the county "Moderate" for shrink-swell potential (3.18% linear extensibility). Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

What Jefferson County's reading doesn't cover

Two lots a mile apart in Jefferson County can carry different soil, even though they share one countywide reading. 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 Jefferson County.

What it costs to find out, versus to ignore it

With Jefferson 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.

Jefferson County's rank among Oklahoma counties

Nationally, Jefferson County, OK is the 1,067-most-constrained of 3,085 rated counties for shrink-swell soil. Within Oklahoma alone it ranks 43 of 77. Jefferson County covers 759 square miles and counts 5,374 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Baldwin County, AL and Texas County, OK 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 Hughes County, OK and Le Flore County, OK. The full underlying dataset is downloadable directly, one row per county.