Winneshiek County, IA Shrink-Swell Risk

Shrink-swell potential in Winneshiek County, IA

Low

Soil across 62.2% of Winneshiek County, IA comes back "Low" in USDA's shrink-swell data, averaging 2.85% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Winneshiek County, IA - 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 Winneshiek County will actually do.

Winneshiek County: the real numbers

Winneshiek 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 Winneshiek County, IA compares

Among the 3,085 rated counties on this site, Winneshiek County, IA ranks 1,315 most-constrained nationally, and 95 of 99 within Iowa. The county spans 690 square miles, home to 19,723 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Mower County, MN and Juneau County, WI 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 Clarke County, IA and Wright County, IA. The full underlying dataset is downloadable directly, one row per county.