Abbeville County, SC Shrink-Swell Risk

Abbeville County, SC's soil, for shrink-swell risk

Low

Abbeville County, SC: USDA's soil survey rates 83% of the county "Low" for shrink-swell potential (2.2% 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 Abbeville County's reading doesn't cover

Two lots a mile apart in Abbeville County can carry different soil, even though they share one countywide reading. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Abbeville County will actually do.

What it costs to find out, versus to ignore it

With Abbeville County, SC rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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

Nationally, Abbeville County, SC is the 1,805-most-constrained of 3,085 rated counties for shrink-swell soil. Within South Carolina alone it ranks 14 of 46. Abbeville County, SC is 491 square miles with a population of 24,607.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Grayson County, TX and Alpine County, CA 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

More of South Carolina

Every county in South Carolina is on this site, including Colleton County, SC and Chester County, SC. The full underlying dataset is downloadable directly, one row per county.