Granville County, NC Shrink-Swell Risk
Granville County's SSURGO shrink-swell reading
Moderate
In Granville County, NC, 49.8% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.59% linear extensibility on average. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
Before you rely on this for one address
Granville County's reading is an average across the whole county, not a promise about any one lot inside it. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Granville County.
Budgeting for Granville County, NC
Granville 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, Granville County, NC ranks 784 most-constrained nationally, and 2 of 100 within North Carolina. Granville County, NC is 532 square miles with a population of 61,544.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Kennebec County, ME and Adams County, IN 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 Rockingham County, NC and Mecklenburg County, NC. The full underlying dataset is downloadable directly, one row per county.