Caldwell County, NC Shrink-Swell Risk
Caldwell County's SSURGO shrink-swell reading
Low
In Caldwell County, NC, 97.5% of the surveyed soil carries a "Low" shrink-swell rating, 1.28% linear extensibility on average. 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.
Before you rely on this for one address
Caldwell County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Caldwell County will actually do.
Budgeting for Caldwell County, NC
Caldwell 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, Caldwell County, NC ranks 2,713 most-constrained nationally, and 93 of 100 within North Carolina. Caldwell County, NC is 472 square miles with a population of 80,739.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Effingham County, GA and Audubon County, IA 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 North Carolina
Every county in North Carolina is on this site, including Greene County, NC and Lenoir County, NC. The full underlying dataset is downloadable directly, one row per county.