Winchester city, VA Shrink-Swell Risk

Winchester city, VA's soil, for shrink-swell risk

Moderate

Winchester city, VA: USDA's soil survey rates 87.7% of the county "Moderate" for shrink-swell potential (4.83% linear extensibility). That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What Winchester city's reading doesn't cover

Two lots a mile apart in Winchester city 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 Winchester city.

What it costs to find out, versus to ignore it

With Winchester city, VA rating "Moderate", 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, Winchester city, VA is the 325-most-constrained of 3,085 rated counties for shrink-swell soil. Within Virginia alone it ranks 1 of 114. The county spans 9 square miles, home to 27,800 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Chatham County, GA and Harrison County, MO 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 Floyd County, VA and James City County, VA. The full underlying dataset is downloadable directly, one row per county.