Powhatan County, VA Shrink-Swell Risk

Shrink-swell potential in Powhatan County, VA

Low

Soil across 74.5% of Powhatan County, VA comes back "Low" in USDA's shrink-swell data, averaging 2.41% 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 Powhatan County, VA - 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 Powhatan County will actually do.

Powhatan County: the real numbers

Powhatan 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Powhatan County, VA ranks 1,633 most-constrained nationally, and 45 of 114 within Virginia. Powhatan County, VA is 260 square miles with a population of 32,392.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Portage County, WI and Washington County, AR 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 Virginia

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