Hamilton County, IN Shrink-Swell Risk
Hamilton County's SSURGO shrink-swell reading
Moderate
In Hamilton County, IN, 60.2% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.09% linear extensibility on average. 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.
Before you rely on this for one address
Hamilton 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 Hamilton County.
Budgeting for Hamilton County, IN
Hamilton 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.
Hamilton County's rank among Indiana counties
Among the 3,085 rated counties on this site, Hamilton County, IN ranks 1,123 most-constrained nationally, and 39 of 90 within Indiana. Hamilton County, IN is 394 square miles with a population of 379,704.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Webb County, TX and Johnson County, IN 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 Indiana
Every county in Indiana is on this site, including Vanderburgh County, IN and Harrison County, IN. The full underlying dataset is downloadable directly, one row per county.