Doniphan County, KS Shrink-Swell Risk

Shrink-swell potential in Doniphan County, KS

Moderate

Soil across 73.3% of Doniphan County, KS comes back "Moderate" in USDA's shrink-swell data, averaging 3.93% linear extensibility. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Doniphan County, KS - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Doniphan County will actually do.

Doniphan County: the real numbers

Doniphan 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, Doniphan County, KS ranks 618 most-constrained nationally, and 57 of 105 within Kansas. Doniphan County, KS is 393 square miles with a population of 7,575.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Beauregard Parish, LA and Sangamon County, IL 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 Morton County, KS and Morris County, KS. The full underlying dataset is downloadable directly, one row per county.