Douglas County, NV Shrink-Swell Risk

Shrink-swell potential in Douglas County, NV

Moderate

Soil across 49.6% of Douglas County, NV comes back "Moderate" in USDA's shrink-swell data, averaging 3.18% linear extensibility. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What this number does and doesn't tell you

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

Douglas County: the real numbers

Douglas 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.

How Douglas County, NV compares

Among the 3,085 rated counties on this site, Douglas County, NV ranks 1,062 most-constrained nationally, and 3 of 17 within Nevada. The county spans 711 square miles, home to 49,564 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Rutherford County, TN and Arlington County, VA 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 Nevada

Every county in Nevada is on this site, including Eureka County, NV and Mineral County, NV. The full underlying dataset is downloadable directly, one row per county.