Moore County, NC Shrink-Swell Risk
Shrink-swell potential in Moore County, NC
Low
Soil across 90.6% of Moore County, NC comes back "Low" in USDA's shrink-swell data, averaging 1.61% 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 Moore County, NC - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Moore County will actually do.
Moore County: the real numbers
Moore 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.
Moore County's rank among North Carolina counties
Among the 3,085 rated counties on this site, Moore County, NC ranks 2,373 most-constrained nationally, and 60 of 100 within North Carolina. Moore County covers 698 square miles and counts 108,417 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Delaware County, NY and Graham County, KS 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 Stanly County, NC and Columbus County, NC. The full underlying dataset is downloadable directly, one row per county.