Amherst County, VA Shrink-Swell Risk

Shrink-swell potential in Amherst County, VA

Low

Soil across 86.2% of Amherst County, VA comes back "Low" in USDA's shrink-swell data, averaging 1.91% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Amherst 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 Amherst County will actually do.

Amherst County: the real numbers

Amherst 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.

Amherst County's rank among Virginia counties

Among the 3,085 rated counties on this site, Amherst County, VA ranks 2,061 most-constrained nationally, and 84 of 114 within Virginia. The county spans 474 square miles, home to 31,650 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Lewis County, WA and Poweshiek County, IA 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 Scott County, VA and Powhatan County, VA. The full underlying dataset is downloadable directly, one row per county.