Clark County, WI Shrink-Swell Risk
Clark County's SSURGO shrink-swell reading
Low
In Clark County, WI, 92.1% of the surveyed soil carries a "Low" shrink-swell rating, 1.63% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Clark County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Clark County.
Budgeting for Clark County, WI
Clark 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.
Clark County's rank among Wisconsin counties
Among the 3,085 rated counties on this site, Clark County, WI ranks 2,350 most-constrained nationally, and 40 of 72 within Wisconsin. Clark County, WI is 1,210 square miles with a population of 34,801.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Centre County, PA and Atchison County, KS 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 Calumet County, WI and Ashland County, WI. The full underlying dataset is downloadable directly, one row per county.