Winnebago County, WI Shrink-Swell Risk

Winnebago County, WI's soil, for shrink-swell risk

Moderate

Winnebago County, WI: USDA's soil survey rates 47.5% of the county "Moderate" for shrink-swell potential (3.77% 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 Winnebago County's reading doesn't cover

Two lots a mile apart in Winnebago County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Winnebago County will actually do.

What it costs to find out, versus to ignore it

With Winnebago County, WI 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.

Winnebago County's rank among Wisconsin counties

Nationally, Winnebago County, WI is the 686-most-constrained of 3,085 rated counties for shrink-swell soil. Within Wisconsin alone it ranks 3 of 72. Winnebago County, WI is 435 square miles with a population of 173,307.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Orleans Parish, LA and Ripley County, MO 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 Wisconsin

Every county in Wisconsin is on this site, including Adams County, WI and Fond du Lac County, WI. The full underlying dataset is downloadable directly, one row per county.