Davidson County, NC Shrink-Swell Risk

Shrink-swell potential in Davidson County, NC

Low

Soil across 71.4% of Davidson County, NC comes back "Low" in USDA's shrink-swell data, averaging 2.59% 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 this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Davidson County, NC - never a reading for one specific parcel. 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 Davidson County.

Davidson County: the real numbers

Davidson 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.

How Davidson County, NC compares

Among the 3,085 rated counties on this site, Davidson County, NC ranks 1,483 most-constrained nationally, and 15 of 100 within North Carolina. Davidson County covers 553 square miles and counts 177,809 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Lowndes County, GA and Kewaunee County, WI 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 Burke County, NC and Wilkes County, NC. The full underlying dataset is downloadable directly, one row per county.