Sussex County, VA Shrink-Swell Risk

Sussex County, VA's soil, for shrink-swell risk

Low

Sussex County, VA: USDA's soil survey rates 75.2% of the county "Low" for shrink-swell potential (2.18% 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 Sussex County's reading doesn't cover

Two lots a mile apart in Sussex County can carry different soil, even though they share one countywide reading. 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 Sussex County.

What it costs to find out, versus to ignore it

With Sussex County, VA rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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

Nationally, Sussex County, VA is the 1,818-most-constrained of 3,085 rated counties for shrink-swell soil. Within Virginia alone it ranks 63 of 114. Sussex County, VA is 490 square miles with a population of 10,753.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Wadena County, MN and Washita County, OK 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

More of Virginia

Every county in Virginia is on this site, including Spotsylvania County, VA and Prince Edward County, VA. The full underlying dataset is downloadable directly, one row per county.