Ida County, IA Shrink-Swell Risk

What Ida County, IA's soil means for a foundation

Moderate

USDA's SSURGO data puts Ida County, IA's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.99% across 89.5% of the county's surveyed land. 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.

This is a county figure, not a lot figure

USDA's survey covers the whole of Ida County, IA at once, not any single address. 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 Ida County.

Report cost vs. repair cost

With Ida County, IA rating "Moderate", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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 Ida County, IA compares

Nationally, Ida County, IA is the 572-most-constrained of 3,085 rated counties for shrink-swell soil. Within Iowa alone it ranks 43 of 99. Ida County covers 432 square miles and counts 6,810 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Eau Claire County, WI and Sargent County, ND 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

More of Iowa

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