Caswell County, NC Shrink-Swell Risk

What Caswell County, NC's soil means for a foundation

Moderate

USDA's SSURGO data puts Caswell County, NC's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 3.1% across 58.7% of the county's surveyed land. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.

This is a county figure, not a lot figure

USDA's survey covers the whole of Caswell County, NC at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Caswell County, NC rating "Moderate", 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, Caswell County, NC is the 1,119-most-constrained of 3,085 rated counties for shrink-swell soil. Within North Carolina alone it ranks 9 of 100. Caswell County covers 426 square miles and counts 22,363 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Elmore County, ID and Providence County, RI 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 North Carolina

Every county in North Carolina is on this site, including Henderson County, NC and Iredell County, NC. The full underlying dataset is downloadable directly, one row per county.