Woodford County, IL Shrink-Swell Risk

Shrink-swell potential in Woodford County, IL

Moderate

Soil across 74% of Woodford County, IL comes back "Moderate" in USDA's shrink-swell data, averaging 4.18% linear extensibility. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Woodford County, IL - 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 Woodford County.

Woodford County: the real numbers

Woodford 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 Woodford County, IL compares

Among the 3,085 rated counties on this site, Woodford County, IL ranks 483 most-constrained nationally, and 21 of 101 within Illinois. Woodford County, IL is 528 square miles with a population of 38,290.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Custer County, OK and Lawrence County, AR 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 Illinois

Every county in Illinois is on this site, including Vermilion County, IL and LaSalle County, IL. The full underlying dataset is downloadable directly, one row per county.