Davis County, IA Shrink-Swell Risk

Davis County's SSURGO shrink-swell reading

Moderate

In Davis County, IA, 56.1% of the surveyed soil carries a "Moderate" shrink-swell rating, 5.44% linear extensibility on average. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

Before you rely on this for one address

Davis 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 Davis County will actually do.

Budgeting for Davis County, IA

Davis 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 Davis County, IA compares

Among the 3,085 rated counties on this site, Davis County, IA ranks 224 most-constrained nationally, and 11 of 99 within Iowa. Davis County covers 502 square miles and counts 9,193 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Mackinac County, MI and Greensville County, VA 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 Iowa

Every county in Iowa is on this site, including Cerro Gordo County, IA and Hancock County, IA. The full underlying dataset is downloadable directly, one row per county.