Rockbridge County, VA Shrink-Swell Risk

Shrink-swell potential in Rockbridge County, VA

Low

Soil across 60.6% of Rockbridge County, VA comes back "Low" in USDA's shrink-swell data, averaging 2.87% 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 Rockbridge 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 Rockbridge County will actually do.

Rockbridge County: the real numbers

Rockbridge 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.

Rockbridge County's rank among Virginia counties

Among the 3,085 rated counties on this site, Rockbridge County, VA ranks 1,287 most-constrained nationally, and 15 of 114 within Virginia. Rockbridge County covers 597 square miles and counts 22,368 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Henry County, IL and Randolph County, WV 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 Newport News city, VA and Rappahannock County, VA. The full underlying dataset is downloadable directly, one row per county.