Alexandria city, VA Shrink-Swell Risk
Shrink-swell potential in Alexandria city, VA
Low
Soil across 84% of Alexandria city, VA comes back "Low" in USDA's shrink-swell data, averaging 2.69% 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 Alexandria city, 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 Alexandria city will actually do.
Alexandria city: the real numbers
Alexandria city'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.
How Alexandria city, VA compares
Among the 3,085 rated counties on this site, Alexandria city, VA ranks 1,417 most-constrained nationally, and 28 of 114 within Virginia. The county spans 15 square miles, home to 159,102 people.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Lee County, NC and San Saba County, TX 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 Albemarle County, VA and Surry County, VA. The full underlying dataset is downloadable directly, one row per county.