Spartanburg County, SC Shrink-Swell Risk

Shrink-swell potential in Spartanburg County, SC

Low

Soil across 98.2% of Spartanburg County, SC comes back "Low" in USDA's shrink-swell data, averaging 1.74% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Spartanburg County, SC - 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).

Spartanburg County: the real numbers

Spartanburg 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.

Spartanburg County's rank among South Carolina counties

Among the 3,085 rated counties on this site, Spartanburg County, SC ranks 2,225 most-constrained nationally, and 23 of 46 within South Carolina. Spartanburg County, SC is 808 square miles with a population of 369,256.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Lake County, CA and Barron 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 South Carolina

Every county in South Carolina is on this site, including Pickens County, SC and Florence County, SC. The full underlying dataset is downloadable directly, one row per county.