Burke County, NC Shrink-Swell Risk

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

Low

USDA's SSURGO data puts Burke County, NC's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.49% across 97.5% of the county's surveyed land. 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.

This is a county figure, not a lot figure

USDA's survey covers the whole of Burke County, NC at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Burke County will actually do.

Report cost vs. repair cost

With Burke County, NC 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.

Burke County's rank among North Carolina counties

Nationally, Burke County, NC is the 2,516-most-constrained of 3,085 rated counties for shrink-swell soil. Within North Carolina alone it ranks 72 of 100. Burke County, NC is 506 square miles with a population of 88,545.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Perry County, PA and Douglas County, NE 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 Hoke County, NC and Surry County, NC. The full underlying dataset is downloadable directly, one row per county.