Coffey County, KS Shrink-Swell Risk

Coffey County, KS's soil, for shrink-swell risk

High

Coffey County, KS: USDA's soil survey rates 61.1% of the county "High" for shrink-swell potential (6.26% linear extensibility). This is enough movement to matter: a standard footing can hold up here, but usually only with real moisture management, not by default.

What Coffey County's reading doesn't cover

Two lots a mile apart in Coffey 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 Coffey County.

What it costs to find out, versus to ignore it

Coffey County's soil reading is exactly the case where a report before construction, or before cracks widen, pays for itself. The report ($1,000-$5,000) is what tells you whether Coffey County's county-level reading applies to your lot; the repair ($5,000-$15,000) is what it costs if you skip that and find out from the cracks instead.

Coffey County's rank among Kansas counties

Nationally, Coffey County, KS is the 105-most-constrained of 3,085 rated counties for shrink-swell soil. Within Kansas alone it ranks 4 of 105. The county spans 627 square miles, home to 8,301 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Bell County, TX and St. Croix County, WI are worth a look for comparison.

How this reading is built, and its real limits · The warning signs of expansive-clay damage, explained

More of Kansas

Every county in Kansas is on this site, including Rawlins County, KS and Miami County, KS. The full underlying dataset is downloadable directly, one row per county.