Surry County, NC Shrink-Swell Risk

Surry County, NC's soil, for shrink-swell risk

Low

Surry County, NC: USDA's soil survey rates 95.6% of the county "Low" for shrink-swell potential (1.65% 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 Surry County's reading doesn't cover

Two lots a mile apart in Surry County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Surry 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.

How Surry County, NC compares

Nationally, Surry County, NC is the 2,333-most-constrained of 3,085 rated counties for shrink-swell soil. Within North Carolina alone it ranks 55 of 100. Surry County covers 533 square miles and counts 71,547 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Powell County, MT and Union County, OH 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 Perquimans County, NC and Rowan County, NC. The full underlying dataset is downloadable directly, one row per county.