Wyandotte County, KS Shrink-Swell Risk
Shrink-swell potential in Wyandotte County, KS
Moderate
Soil across 43.2% of Wyandotte County, KS comes back "Moderate" in USDA's shrink-swell data, averaging 5.07% linear extensibility. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Wyandotte County, KS - never a reading for one specific parcel. 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 Wyandotte County.
Wyandotte County: the real numbers
Wyandotte County's soil reading points toward standard foundation practice as the likely outcome, not the exception. 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
Among the 3,085 rated counties on this site, Wyandotte County, KS ranks 282 most-constrained nationally, and 43 of 105 within Kansas. Wyandotte County covers 152 square miles and counts 169,418 residents.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Howard County, NE and Adams County, IA 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
Elsewhere in Kansas
Every county in Kansas is on this site, including Osage County, KS and Douglas County, KS. The full underlying dataset is downloadable directly, one row per county.