Appanoose County, IA Shrink-Swell Risk

Appanoose County, IA's soil, for shrink-swell risk

Moderate

Appanoose County, IA: USDA's soil survey rates 51.7% of the county "Moderate" for shrink-swell potential (5.73% linear extensibility). Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

What Appanoose County's reading doesn't cover

Two lots a mile apart in Appanoose County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Appanoose 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.

Where this sits nationally

Nationally, Appanoose County, IA is the 174-most-constrained of 3,085 rated counties for shrink-swell soil. Within Iowa alone it ranks 2 of 99. The county spans 497 square miles, home to 12,106 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Howard County, MO and Crockett County, TN 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 Chickasaw County, IA and Woodbury County, IA. The full underlying dataset is downloadable directly, one row per county.