Brown County, OH Shrink-Swell Risk
Shrink-swell potential in Brown County, OH
Moderate
Soil across 49.8% of Brown County, OH comes back "Moderate" in USDA's shrink-swell data, averaging 3.39% 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 this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Brown County, OH - 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 Brown County.
Brown County: the real numbers
Brown 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, Brown County, OH ranks 911 most-constrained nationally, and 36 of 88 within Ohio. The county spans 490 square miles, home to 44,292 people.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Cheyenne County, NE and Galveston County, TX 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 Ohio
Every county in Ohio is on this site, including Fairfield County, OH and Cuyahoga County, OH. The full underlying dataset is downloadable directly, one row per county.