McDuffie County, GA Shrink-Swell Risk

Shrink-swell potential in McDuffie County, GA

Low

Soil across 94.9% of McDuffie County, GA comes back "Low" in USDA's shrink-swell data, averaging 1.67% linear extensibility. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in McDuffie County, GA - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in McDuffie County will actually do.

McDuffie County: the real numbers

McDuffie 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.

McDuffie County's rank among Georgia counties

Among the 3,085 rated counties on this site, McDuffie County, GA ranks 2,315 most-constrained nationally, and 49 of 159 within Georgia. McDuffie County, GA is 257 square miles with a population of 21,764.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Sumter County, SC and Scott County, VA 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 Liberty County, GA and Pulaski County, GA. The full underlying dataset is downloadable directly, one row per county.