Madison County, GA Shrink-Swell Risk

Shrink-swell potential in Madison County, GA

Low

Soil across 89.2% of Madison County, GA comes back "Low" in USDA's shrink-swell data, averaging 2.14% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

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

Madison County: the real numbers

Madison 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 Madison County, GA compares

Among the 3,085 rated counties on this site, Madison County, GA ranks 1,850 most-constrained nationally, and 19 of 159 within Georgia. The county spans 282 square miles, home to 32,771 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Barron County, WI and Koochiching County, MN 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 Georgia

Every county in Georgia is on this site, including Franklin County, GA and DeKalb County, GA. The full underlying dataset is downloadable directly, one row per county.