Douglas County, KS Shrink-Swell Risk
Douglas County's SSURGO shrink-swell reading
Moderate
In Douglas County, KS, 48.3% of the surveyed soil carries a "Moderate" shrink-swell rating, 5.62% linear extensibility on average. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.
Before you rely on this for one address
Douglas County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Douglas County will actually do.
Budgeting for Douglas County, KS
Douglas 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.
How Douglas County, KS compares
Among the 3,085 rated counties on this site, Douglas County, KS ranks 200 most-constrained nationally, and 33 of 105 within Kansas. The county spans 456 square miles, home to 121,989 people.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Sherman County, TX and Webster 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
Elsewhere in Kansas
Every county in Kansas is on this site, including Kiowa County, KS and Barber County, KS. The full underlying dataset is downloadable directly, one row per county.