St. Croix County, WI Shrink-Swell Risk

Shrink-swell potential in St. Croix County, WI

Low

Soil across 81.9% of St. Croix County, WI comes back "Low" in USDA's shrink-swell data, averaging 1.9% 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 St. Croix County, WI - never a reading for one specific parcel. 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 St. Croix County.

St. Croix County: the real numbers

St. Croix 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.

Where this sits nationally

Among the 3,085 rated counties on this site, St. Croix County, WI ranks 2,070 most-constrained nationally, and 34 of 72 within Wisconsin. St. Croix County covers 722 square miles and counts 97,954 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Jefferson County, FL and Nassau County, FL 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 Wisconsin

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