Nash County, NC Shrink-Swell Risk
Shrink-swell potential in Nash County, NC
Low
Soil across 93.2% of Nash County, NC comes back "Low" in USDA's shrink-swell data, averaging 1.52% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Nash County, NC - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Nash County: the real numbers
Nash 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.
Nash County's rank among North Carolina counties
Among the 3,085 rated counties on this site, Nash County, NC ranks 2,467 most-constrained nationally, and 68 of 100 within North Carolina. Nash County, NC is 540 square miles with a population of 97,990.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Knox County, MO and Daviess County, KY 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 Jones County, NC and Buncombe County, NC. The full underlying dataset is downloadable directly, one row per county.